Types and advantages of tablet presses

With the continuous development of the market economy, there are more and more commodities in the market that need to be pressed into powder or granular form. For example, Chinese and Western medicine tablets, camphor ball health balls, candies, food tablets, Banlangen blocks, and other products. A tablet press is a device that can quickly press granular or powdery raw materials into shape. Therefore, the demand for a tablet press is becoming more and more extensive.

 

The history of tablet press

 

Tablet presses first appeared in Europe and the United States and have a history of nearly a hundred years. The first tablet press machine introduced in China was in 1949, and it was the first equipment used to manufacture pharmaceutical tablets. After continuous R&D and improvement, the rotary tablet press has the function of automatic rotation and tablet compression. The compressed items are no longer limited to pharmaceutical tablets, but also sugar tablets, calcium tablets, coffee tablets, etc. Up to now, there are many specifications of the tablet press, the scope of application is wider, and the shapes of compression molding are numerous. A tablet press can press out round tablets, special-shaped tablets, double-layer tablets, ring tablets, packaged chips, etc. by changing different molding dies.

 

Machine type

 

The models can be divided into single-punch tablet presses, flower basket tablet presses, rotary tablet presses, sub-high-speed rotary tablet presses, fully automatic high-speed tablet presses, and rotary core-spun tablet presses.

Single Punch Tablet Press

 

The single-punch tablet press machine is a small desktop electric continuous tablet press machine, which can also be operated by hand. The extruded tablets have an average thickness and high gloss without polishing. Since the single-punch tablet press has only one pair of dies, it is called a single-punch tablet press; the filling depth of the material and the thickness of the tablet can be adjusted.

 

The single-punch tablet press machine can press powder and granular raw materials into tablets and can be widely used in pharmaceutical factories, chemical factories, hospitals, scientific research units, laboratory trial production, and small batch production. The small single-punch tablet press machine is suitable for pressing Chinese medicine tablets, western medicine tablets, chewable tablets, calcium tablets, buccal tablets, spirulina tablets, milk tablets, candy tablets, effervescent tablets, mothballs (hygienic balls), aromatic tablets, taste blocks, disinfection tablets, catalysts, fertilizer tablets, pesticide tablets, button batteries, electronic components, metallurgical powder ceramic particles, etc. It is a small desktop electric (manual) continuous tableting machine, equipped with a pair of dies, the filling depth of the material, and the thickness of the tableting can be adjusted. Various shapes of molds can be provided according to customer requirements.

 

Rotary tablet press

 

Rotary tablet press machine is a machine that automatically rotates and continuously presses tablets. It is the basic equipment for processing various granular raw materials into tablets in pharmaceutical, chemical, food and other industrial sectors. The hopper part of the rotary tablet press is mainly used for material storage, and its lower part is connected with the forced feeder; the gear motor part of the rotary tablet press is the power source of the forced feed system. It mainly includes a three-phase/single-phase motor and a worm gear reducer. It is controlled by a frequency converter, and the output speed is adjustable. The lower part is connected to the forced feeder; the forced feeder of the rotary tablet press is mainly used to fill the material into each intermediate die hole on the turntable, thus completing the final task of the forced feeding system, so the forced feeder It is the core component of the entire forced feeding system.

 

 

Advantages of Tablet Press

 

 

The production principle of the tablet press is based on one-way compression of manual film compression, that is, the lower punch is stable while the upper punch is pressed. This method makes the tablet density non-uniform due to non-uniform force. Crack occurs. It is no longer only used to compress western medicine tablets, even veterinary medicine tablets, health food, chemical tablets. Powder direct compression is to sieve and mix the powder of the drug and suitable excipients separately, and directly compress it into tablets without granulation (wet granules or dry granules). Because of its simple process, no need for granulation and drying, energy saving and time saving, protection of drug stability, improvement of drug dissolution rate, and high degree of industrial automation, it is being increasingly used by pharmaceutical companies in various countries. Another advantage of powder direct compression technology is that it avoids the effects of heat and moisture. Tablets produced by powder direct tableting machine technology have good disintegration properties and excellent dispersion uniformity

Iron Angle Cutting Machine-Punch and shear machine

 A metal punching and shearing machine is a mechanical device for processing metal materials. The equipment has various functions such as punching, cutting, bending, and so on. Moreover, the equipment is widely applicable to the processing of channel steel, round steel, angle steel, square steel, and other materials. Because the equipment has multiple functions in one, it is also called a multi-functional combined punching and shearing machine.

The use of punching and shearing machine

Punching and shearing machines are mainly used in the angle steel-angle iron processing industry. It can cut angle steel, round steel, square steel, and iron plate. It is mainly used for cutting angle steel, shearing angle butt welding, flange punching, flat steel shearing, etc. It has the characteristics of fast cutting and punching speed and smooth incision.

Working principle of punching and shearing machine

The punching and shearing machine mainly uses overlapping two-stage levers, sliders, and other devices to move the cutting blade up and down on the slide. The shearing and punching process is completed by using the fixed blade installed on the frame.

Other Metal Processing Machine:

Hydraulic Ironworker Machine

Rebar Bending Machine

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What are the advantages of the combined punching and shearing machine?

1. The cutting knife in the shearing part is made of high-hardness material, which is suitable for processing various raw materials with different hardness.

2. The punching part is made of high-hardness steel, which has good wear resistance after quenching. In addition, the punching mold can be customized into round-hole and long-hole abrasive tools according to the needs of customers.

3. One machine with multiple functions, the machine integrates multiple functions such as cutting, shearing, punching, and so on. To meet the different needs of multiple customers, low price, diverse functions.

4. The sliding parts of the combined punching and shearing machine are all made of wear-resistant copper alloy, which is durable.

5. The machine has a simple structure, reasonable design, beautiful shape, low failure rate, and good punching and shearing effect.

Do you know about disposable PE gloves?

 Disposable PE gloves are a type of plastic gloves. It is processed from LDPE (Low-Density Polyethylene), LLDPE (Low-Density Linear Polyethylene), and HDPE (High-Density Polyethylene). PE gloves are blown into a film by a film-blowing machine and then made by a disposable PE glove-making machine.

Features of disposable PE gloves:

 

PE gloves have four specifications: S, M, L, and XL. They are transparent, uniform in thickness, easy to wear, comfortable, soft, flexible in operation, acid-resistant, alkali-resistant, and oil-resistant. It is made of food-grade materials, and the gloves that have passed the food-grade test meet food hygiene and safety standards. Therefore, disposable PE gloves are also widely used in catering services and food processing industries. In addition, it is also used in aquaculture, beauty salons, hair dyeing, and frying oil-eating lobsters, big bones, barbecue picnics, household cleaning, daily storage, cleaning, gardening flowers, washing vegetables and washing clothes, experiments Laboratory scientific research, paint decoration, dust-free workshop, electronics factory industry, and other industries.

 

How are disposable PE gloves made?

 

The production of disposable PE gloves generally goes through the processes of batching, film blowing, automatic bonding and cutting, and packaging.

 

1. Mix various materials for making disposable PE gloves together to make ingredients

2. Use a film-blowing machine to blow the raw material into the glove raw file

3. Cut the raw film into a glove shape using an adhesive cutter

4. Finally, use a disposable PE glove folding packaging machine to pack the gloves into individual packages.

 

Classification of disposable gloves

1. According to the purpose, acid and alkali-resistant gloves, electrical insulating gloves, radiation protection gloves, medical gloves, and other rubber gloves. According to rubber raw materials or manufacturing processes, latex gloves and molded gloves are classified. Acid and alkali-resistant gloves should be able to be used in sulfuric acid (density 1.32) or caustic soda solution (density 1.19) at 45°C.

 

2. According to the material, it is generally divided into plastic disposable gloves, latex disposable gloves, and nitrile disposable gloves. Among them, plastic film gloves are generally used on non-professional occasions. The advantage is that they are cheap, but because plastic disposable gloves have no elasticity, their durability and suitability are relatively poor. How to use disposable PE gloves

 

3. Latex gloves are usually used on professional occasions, such as operating rooms, laboratories, and other places that require high hygiene conditions. Corrosion, more importantly, according to statistics, 2%-17% of people will have varying degrees of allergies to latex. Nitrile gloves, in addition to having the characteristics of latex gloves, have improved the shortcomings of latex gloves. First, they can withstand the corrosion of animal oils and do not cause allergies.

Rotary drilling rig assists construction of building pile foundation

 With the advancement of industrialization and urbanization, the amount of pile foundation construction is increasing day by day. Rapid development of infrastructure construction, more and more tall, large, and heavy construction projects. In the pile foundation industry, based on the bearing capacity needs of high-rise, super high-rise buildings and large bridges, as well as environmental protection (smoke pollution, noise), vibration, construction quality, and work efficiency, bored piles have gradually replaced prefabricated piles. Become the mainstream form of pile foundation.

Construction technology of rotary drilling rig

The construction technology of rotary drilling rig is a relatively advanced pile foundation construction technology that has been promoted and used in my country in recent years. It is known as “green construction technology” and has the following characteristics: First, advanced equipment performance, high degree of automation, and low labor intensity. The rotary drilling rig is mainly a crawler-type full-hydraulic self-propelled drilling rig, which adopts a complete set of hydraulic systems and is equipped with an advanced computer operating system. It can move by itself on the construction site and stand on its own mast. It is convenient and fast to move and align holes. Second, it has a wide range of adaptability to the stratum. It can be constructed for piles with a diameter of 0.6m to 2.5m and a depth of fewer than 70 meters. The drilling efficiency is high, and the drill bit can quickly pass through various strata to quickly form holes; under normal circumstances, The drilling speed in the sand layer can reach 10m/h, and in the clay, the layer can reach 4.6 m/h, which is 3 to 5 times that of ordinary rotary drilling rigs. The third is good environmental protection. The rotary drilling method uses a power head device and a pressurizing mechanism. Its working principle is that the short auger bit or the rotary bucket uses a strong torque to directly rotate and excavate drilling slags such as soil or gravel, and then quickly Outside the proposed hole, dry construction can be realized without the need for mud support; even in the case of special formations that require mud wall protection, the mud only plays the role of hole wall support, and the mud content in drilling is low, improving The construction environment is improved, and the construction cost is reduced at the same time; the fourth is to improve the bearing capacity of the cast-in-situ pile. Due to the special hole-forming process of the rotary drilling rig, it only needs static pressure mud as the retaining wall, and no thick mud skin will be formed on the hole wall, In addition, due to the multiple up and down reciprocations of the drill bit, the hole wall roughness is high, and it is not easy to shrink the diameter, and the hole is more regular, which is 20% higher than the traditional bored pile. The construction technology of rotary drilling rigs has been widely used in road and railway construction before, and it has also been gradually applied in residential pile foundations in recent years.

related: pile cutting machine

Rotary Drilling Rig Introduction

A rotary drilling rig is a construction machine suitable for hole-forming operations in construction projects. Widely used in municipal construction, highway bridges, high-rise buildings, and other ground construction projects, with different drilling tools, suitable for dry (short screw), or wet (rotary bucket) and rock formation (core drill) hole-forming operations, rotary drilling The drilling rig has the characteristics of large installed power, large output torque, large axial pressure, flexible maneuverability, high construction efficiency, and multi-function. The rotary drilling rig is suitable for the soil and geological conditions in most areas of our country and has a wide range of applications. It can basically meet the needs of bridge construction, high-rise building foundations, and other projects. At present, rotary drilling rigs have been widely used in various boring pile projects.

Other Drilling Machine Recommend:

Down the hole drilling rig

water well drilling rig

horizontal directional drilling machine 

diamond core drilling rig

Rotary drilling rig application

A rotary drilling rig is a pile engineering machine used for drilling piles on-site in pile foundation engineering. It has many functions and is suitable for the following ranges. the

(1) Configure different drilling tools such as short auger bits, helical rotary buckets, core auger bits, etc., and adopt corresponding drilling technology, which can be applied to various cohesive soils, silt soils, filling soils, sandy soils above medium density, Dry type (short auger drilling rig) or wet type (rotary bucket drilling rig), rock formation (core drilling rig) drilling operations in gravel soil, medium hardness weathered rock formation. the

(2) Equipped with a hydraulic piling hammer, it can be used for the construction of prefabricated concrete piles or steel piles for building foundations. the

(3) Equipped with a long auger bit and a hydraulic grab, it can carry out long auger drilling and underground diaphragm wall construction respectively.

Due to the above-mentioned characteristics, and its construction safety, civilization, good quality, low pollution, and high efficiency, this equipment is widely used in the foundation construction of large-scale key projects such as roads, bridges, docks, and high-rise buildings. The main hole-forming equipment for cast-in-situ pile construction.