Roller press for plaster production

Abstract

This utility model belongs to the field of plaster production technology and discloses a roller press for plaster production, including a base frame. The upper surface of the base frame is provided with a conveying mechanism, and a roller pressing mechanism is fixedly provided on one side of the base frame. The roller pressing mechanism includes a roller pressing frame, one side of which is fixedly connected to the base frame. An adjusting screw is threaded into the upper surface of the roller pressing frame, and an adjusting bracket is rotatably provided on the lower surface of the adjusting screw. The two sides of the adjusting bracket slide against the inner walls of the two sides of the roller pressing frame. This utility model allows for flexible adjustment of the position of the adjusting bracket and the upper pressure roller through the roller pressing mechanism, adapting to plaster substrates of different thicknesses. At the same time, the roller pressing motor drives the two pressure rollers to rotate relative to each other through a drive bevel gear and an adjusting bevel gear, achieving efficient roller pressing. Furthermore, the conveying mechanism ensures that the plaster substrate enters the roller pressing mechanism smoothly. The overall structure improves the quality of roller pressing and production efficiency, and enhances the versatility and ease of operation of the equipment.

Description

Technical Field

[0001] This utility model belongs to the field of plaster production technology, specifically a roller press for plaster production. Background Technology

[0002] This type of roller press for plaster production is suitable for various large-scale and refined plaster production scenarios. Whether it is traditional Chinese medicine black plaster, new poultice patches, medicated gel patches, or hot melt adhesive matrix patches, it can play a key role in the entire plaster production process. On the batch production lines of small and medium-sized pharmaceutical companies, it can uniformly roll the plaster substrate to ensure accurate drug layer thickness, tight adhesion, and improve the stability of drug release.

[0003] However, the following problems were found in the implementation of the relevant technologies:

[0004] In existing plaster production technology, the roller pressing process often faces the problem of fixed roller spacing and cumbersome adjustment mechanism. When dealing with plaster substrates of different thicknesses, either the spacing is too narrow, causing the substrate edges to crack under pressure and the medicine to overflow and contaminate the equipment, or the spacing is too wide, resulting in roller pressing blind spots, poor adhesion between the medicine layer and the backing cloth, and easy delamination. At the same time, single motors driving the rollers through chains or belts are prone to transmission slippage, resulting in a difference in the speed of the upper and lower rollers, causing the substrate to wrinkle and the depth of the embossing to be uneven, which directly affects the uniformity of the medicine release. On the other hand, the conveying process relies on manual feeding. When the plaster substrate enters the roller pressing area, it is easy for the position to be offset, causing uneven force on the edge of the roller, which can lead to substrate jamming and tearing. In continuous production, the change in the tightness of the substrate causes the roller pressing pressure to fluctuate, resulting in bubbles on the product surface and thickness tolerance exceeding the standard. At the same time, the independent operation of multiple machines requires frequent manual adjustment of parameters, which greatly reduces production efficiency and increases the defect rate. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a roller press for plaster production, featuring adjustable roller spacing and stable conveying. Through its roller pressing mechanism, the invention allows for flexible adjustment of the adjusting frame and the position of the upper rollers to accommodate plaster substrates of varying thicknesses. Simultaneously, the roller pressing motor drives the two rollers to rotate relative to each other via a drive bevel gear and an adjusting bevel gear, achieving efficient roller pressing. Furthermore, the conveying mechanism ensures the plaster substrate enters the roller pressing mechanism smoothly. The overall structure improves roller pressing quality and production efficiency, enhancing equipment versatility and ease of operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a roller press for plaster production, comprising a base frame, a conveying mechanism on the upper surface of the base frame, a roller pressing mechanism fixedly mounted on one side of the base frame, the roller pressing mechanism comprising a roller pressing frame, one side of the roller pressing frame being fixedly connected to the base frame, an adjusting screw threadedly inserted into the upper surface of the roller pressing frame, an adjusting bracket rotatably mounted on the lower surface of the adjusting screw, the two sides of the adjusting bracket slidingly against the inner walls of the two sides of the roller pressing frame, pressure rollers rotatably mounted on the inner sides of both the adjusting bracket and the roller pressing frame, a driven bevel gear fixedly mounted at one end of the pressure roller, a roller pressing motor fixedly mounted on one side of the roller pressing frame, a rotating rod fixedly mounted at the output end of the roller pressing motor, a driving bevel gear fixedly mounted on the outer side of the rotating rod, the outer side of the driving bevel gear meshing with one of the driven bevel gears, an adjusting bevel gear slidably mounted on the outer side of the rotating rod, the adjusting bevel gear rotatably connected to one side of the adjusting bracket, a positioning block fixedly mounted on the inner side of the adjusting bevel gear, the positioning block slidingly against the outer side of the rotating rod.

[0007] Preferably, the conveying mechanism includes a conveying motor, one side of which is fixedly connected to one side of the base frame. A drive rod is fixedly provided at the output end of the conveying motor. Two drive wheels are fixedly provided on the outer side of the drive rod. A conveyor belt is meshed with the outer side of the drive wheels. The outer side of the conveyor belt slides against the upper surface of the base frame. A driven wheel is meshed with the inner side of the conveyor belt. A conveying frame is fixedly provided on the upper surface of the base frame. The lower surface of the conveying frame is rotatably connected to the driven wheel.

[0008] Preferably, a rocker wheel is fixedly provided at the upper end of the adjusting screw.

[0009] Preferably, a roller pressing mounting frame is fixedly provided on one side of the roller pressing frame, and the upper surface of the roller pressing mounting frame is fixedly engaged with the roller pressing motor.

[0010] Preferably, a positioning groove is provided on the outer side of the rotating rod, and the inner side of the positioning groove is slidably fitted with the positioning block.

[0011] Preferably, a conveyor mounting frame is fixedly provided on one side of the base frame, and one side of the conveyor mounting frame is fixedly engaged with the conveyor motor.

[0012] Preferably, the base frame has drive holes on both sides, and the inner side of the drive hole is rotatably connected to one end of the drive rod.

[0013] Preferably, a positioning wheel is fixedly provided on one side of the conveyor frame, and the outer side of the positioning wheel slides against the upper surface of the base frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses a roller pressing mechanism to flexibly adjust the position of the adjusting frame and the upper pressure roller to adapt to plaster substrates of different thicknesses. At the same time, the roller pressing motor drives the two pressure rollers to rotate relative to each other through the drive bevel gear and the adjusting bevel gear, so as to achieve efficient roller pressing.

[0016] 2. This utility model uses a conveying mechanism to ensure that the plaster substrate enters the roller pressing mechanism smoothly. The overall structure improves the quality of roller pressing and production efficiency, and enhances the versatility and ease of operation of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the roller pressing mechanism of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the conveying mechanism of this utility model.

[0021] In the diagram: 1. Base frame; 2. Roller pressing mechanism; 3. Conveying mechanism; 20. Roller pressing frame; 21. Press roller; 22. Adjusting frame; 23. Adjusting screw; 24. Rocker wheel; 25. Roller pressing motor; 26. Roller pressing mounting frame; 27. Rotating rod; 28. Drive bevel gear; 29. ​​Driven bevel gear; 201. Adjusting bevel gear; 202. Positioning block; 203. Positioning slide; 30. Conveyor motor; 31. Drive rod; 32. Drive wheel; 33. Drive hole; 34. Driven wheel; 35. Conveyor frame; 36. Positioning wheel; 37. Conveyor belt; 38. Conveyor mounting frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4As shown, this utility model provides a roller press for plaster production, including a base frame 1. A conveying mechanism 3 is provided on the upper surface of the base frame 1. A roller pressing mechanism 2 is fixedly provided on one side of the base frame 1. The roller pressing mechanism 2 includes a roller pressing frame 20. One side of the roller pressing frame 20 is fixedly connected to the base frame 1. An adjusting screw 23 is threaded into the upper surface of the roller pressing frame 20. An adjusting bracket 22 is rotatably provided on the lower surface of the adjusting screw 23. The two sides of the adjusting bracket 22 slide against the inner walls of the two sides of the roller pressing frame 20. Pressure rollers 21 are rotatably provided on the inner sides of both the adjusting bracket 22 and the roller pressing frame 20. A driven bevel gear 29 is fixedly provided at one end of the pressure roller 21. A roller pressing motor 25 is fixedly provided on one side of the roller pressing frame 20. A rotating rod 27 is fixedly provided at the output end of the roller pressing motor 25. A driving bevel gear 28 is fixedly provided on the outer side of the rotating rod 27. The outer side of the driving bevel gear 28 is connected to one of the driven bevel gears. A bevel gear 29 is meshed with the rotating rod 27, and an adjusting bevel gear 201 is slidably provided on the outer side of the rotating rod 27. The adjusting bevel gear 201 is rotatably connected to one side of the adjusting frame 22. A positioning block 202 is fixedly provided on the inner side of the adjusting bevel gear 201. The positioning block 202 is slidably attached to the outer side of the rotating rod 27. During the production of the plaster, the operator rotates the rocker wheel 24 to drive the adjusting screw 23 to rotate on the upper surface of the roller press frame 20 according to the thickness requirements of the plaster base material. Since the lower end of the adjusting screw 23 is rotatably connected to the adjusting frame 22, and the two sides of the adjusting frame 22 are slidably attached to the inner walls of the roller press frame 20, the adjusting frame 22 will move vertically as the adjusting screw 23 rotates, thereby driving the pressure roller 21 installed on the inner side of the adjusting frame 22 to move, so as to adjust the distance between the upper and lower pressure rollers 21 to adapt to the current thickness of the plaster base material. After adjustment, the roller press motor 25 is turned on. The output end of the roller press motor 25 drives the rotating rod 27 to rotate, and the driving bevel gear 28 on the rotating rod 27 rotates accordingly. Since the driving bevel gear 28 is meshed with the driven bevel gear 29 fixed to one end of the inner roller 21 of the roller press frame 20, the roller 21 begins to rotate. At the same time, the adjusting bevel gear 201, which is slidably set on the outer side of the rotating rod 27, is slidably engaged with the positioning groove 203 on the outer side of the rotating rod 27 through the positioning block 202. When the rotating rod 27 rotates, the adjusting bevel gear 201 will rotate synchronously with the rotating rod 27, thereby driving the roller 21 on the inner side of the adjusting frame 22, which is rotatably connected to the adjusting bevel gear 201, to rotate. The driven bevel gear 29 at one end of the roller 21 meshes with the adjusting bevel gear 201, realizing the relative rotation of the two rollers 21. At this time, the plaster substrate is fed between the two rollers 21 by the conveying mechanism 3. Under the action of the two relatively rotating rollers 21, the roller pressing operation is completed, so that the plaster substrate achieves the required thickness and pressing effect.

[0024] Specifically, the conveying mechanism 3 includes a conveying motor 30, one side of which is fixedly connected to one side of the base frame 1. A drive rod 31 is fixedly mounted on the output end of the conveying motor 30. Two drive wheels 32 are fixedly mounted on the outer side of the drive rod 31. A conveyor belt 37 is meshed with the outer side of the drive wheels 32. The outer side of the conveyor belt 37 slides against the upper surface of the base frame 1. A driven wheel 34 is meshed with the inner side of the conveyor belt 37. A conveyor frame 35 is fixedly mounted on the upper surface of the base frame 1. The lower surface of the conveyor frame 35 is rotatably connected to the driven wheel 34. Before starting the roller press, the operator places the plaster substrate under the conveyor belt 37 and adjusts its position so that it can smoothly enter the roller pressing mechanism 2. After preparation, the conveying motor 30 is turned on. The output end of the conveying motor 30 drives the drive rod 31 to rotate, and the two drive wheels 32 fixedly mounted on the outer side of the drive rod 31 rotate accordingly. Since the outer side of the drive wheels 32 is meshed with the outer side of the conveyor belt 37, the conveyor belt 37 begins to move under the drive of the drive wheels 32. The inner side of the conveyor belt 37 is engaged with the driven wheel 34, which rotates under the drive of the conveyor belt 37. The driven wheel 34 is also rotatably connected to the lower surface of the conveyor frame 35, which is fixed to the upper surface of the base frame 1, ensuring the stability of the conveyor belt 37 during movement. The outer side of the conveyor belt 37 slides against the upper surface of the base frame 1, allowing it to run smoothly along a set direction. Simultaneously, the outer side of the positioning wheel 36, fixed to one side of the conveyor frame 35, slides against the upper surface of the base frame 1, further guiding and positioning the conveyor belt 37, ensuring it does not deviate. With the continuous movement of the conveyor belt 37, the plaster substrate is smoothly fed into the roller pressing mechanism 2, preparing for subsequent roller pressing operations.

[0025] Furthermore, a rocker wheel 24 is fixedly provided at the upper end of the adjusting screw 23. When it is necessary to adjust the distance between the upper and lower pressure rollers 21 to adapt to plaster substrates of different thicknesses, the operator only needs to manually turn the rocker wheel 24 to easily drive the adjusting screw 23 to rotate. Compared with directly turning the adjusting screw 23, the rocker wheel 24 increases the torque, making the adjustment process more labor-saving and efficient, reducing the labor intensity of the operator, improving work efficiency, and also reducing production delays caused by inconvenient adjustment.

[0026] Furthermore, a roller pressing mounting bracket 26 is fixedly provided on one side of the roller pressing frame 20. The upper surface of the roller pressing mounting bracket 26 is fixedly engaged with the roller pressing motor 25. By fixing the roller pressing motor 25 to the upper surface of the roller pressing mounting bracket 26, the vibration and displacement generated by the roller pressing motor 25 during operation can be effectively reduced, ensuring the connection stability between the roller pressing motor 25 and the rotating rod 27, and making the power transmission more stable and precise.

[0027] It is worth noting that a positioning groove 203 is provided on the outer side of the rotating rod 27. The inner side of the positioning groove 203 slides against the positioning block 202, providing precise guidance and positioning for the movement of the adjusting bevel gear 201 on the rotating rod 27. When the rotating rod 27 rotates, the adjusting bevel gear 201 slides in the positioning groove 203 through the positioning block 202. This ensures that the adjusting bevel gear 201 can rotate synchronously with the rotating rod 27, and also ensures that the adjusting bevel gear 201 will not deviate in the direction of rotation when it moves with the adjusting frame 22 in the vertical direction, always maintaining the correct meshing state with the driven bevel gear 29.

[0028] It is worth noting that a conveyor mounting bracket 38 is fixedly installed on one side of the base frame 1. One side of the conveyor mounting bracket 38 is fixedly engaged with the conveyor motor 30. As the power source of the conveying mechanism 3, the installation stability of the conveyor motor 30 directly affects the operating performance of the conveyor belt 37. By fixing the conveyor motor 30 to one side of the base frame 1 through the conveyor mounting bracket 38, the vibration and shaking generated by the conveyor motor 30 during operation can be effectively reduced, ensuring a tight and stable connection between the output shaft of the conveyor motor 30 and the drive rod 31. This ensures that the power can be accurately and efficiently transmitted to the drive rod 31, thereby driving the conveyor belt 37 to run smoothly.

[0029] It is worth mentioning that drive holes 33 are provided on both sides of the base frame 1. The inner side of the drive hole 33 is rotatably connected to one end of the drive rod 31, and one end of the drive rod 31 is rotatably connected to the inner side of the drive hole 33, so that the drive rod 31 can maintain a stable position and direction during rotation and will not deviate or shake.

[0030] It is worth emphasizing that a positioning wheel 36 is fixedly provided on one side of the conveyor frame 35. The outer side of the positioning wheel 36 slides against the upper surface of the base frame 1. When the conveyor belt 37 is driven by the drive wheel 32 and the driven wheel 34, the positioning wheel 36 can restrict the movement of the conveyor belt 37 in the lateral direction, prevent the conveyor belt 37 from deviating during operation, and ensure that the conveyor belt 37 always runs smoothly along the set path.

[0031] Among them, the roller press motor 25 and the conveyor motor 30 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.

[0032] Working principle: During the plaster production process, the operator rotates the rocker wheel 24 to drive the adjusting screw 23 to rotate on the upper surface of the roller press frame 20 according to the thickness requirements of the plaster base material. Since the lower end of the adjusting screw 23 is rotatably connected to the adjusting frame 22, and the two sides of the adjusting frame 22 slide against the inner walls of the roller press frame 20, the adjusting frame 22 will move vertically as the adjusting screw 23 rotates, thereby driving the pressure roller 21 installed inside the adjusting frame 22 to move, so as to adjust the distance between the upper and lower pressure rollers 21 to adapt to the current thickness of the plaster base material. After adjustment, the roller press motor 25 is turned on. The output end of the roller press motor 25 drives the rotating rod 27 to rotate, and the driving bevel gear 28 on the rotating rod 27 rotates accordingly. Since the driving bevel gear 28 is meshed with the driven bevel gear 29 fixed to one end of the inner roller 21 of the roller press frame 20, the roller 21 begins to rotate. At the same time, the adjusting bevel gear 201, which is slidably set on the outer side of the rotating rod 27, is slidably engaged with the positioning groove 203 on the outer side of the rotating rod 27 through the positioning block 202. When the rotating rod 27 rotates, the adjusting bevel gear 201 will rotate synchronously with the rotating rod 27, thereby driving the roller 21 on the inner side of the adjusting frame 22, which is slidably connected to the adjusting bevel gear 201, to rotate. The driven bevel gear 29 at one end of the roller 21 meshes with the adjusting bevel gear 201, realizing the relative rotation of the two rollers 21. At this time, the plaster substrate is fed into the space between the two rollers 21 by the conveying mechanism 3. Under the action of the two relatively rotating rollers 21, the roller pressing operation is completed, so that the plaster substrate achieves the required thickness and pressing effect.

[0033] Before starting the roller press, the operator places the plaster substrate under the conveyor belt 37 and adjusts its position to ensure it can smoothly enter the roller pressing mechanism 2. After preparation, the conveyor motor 30 is turned on. The output of the conveyor motor 30 drives the drive rod 31 to rotate, and the two drive wheels 32 fixed on the outside of the drive rod 31 rotate accordingly. Since the outer side of the drive wheels 32 is engaged with the outer side of the conveyor belt 37, the conveyor belt 37 begins to move under the drive of the drive wheels 32. The inner side of the conveyor belt 37 is engaged with the driven wheel 34. The driven wheel 34 rotates under the drive of the conveyor belt 37, and the driven wheel 34 is rotatably connected to the lower surface of the conveyor frame 35 fixed on the upper surface of the base frame 1, ensuring the stability of the conveyor belt 37 during movement. The outer side of the conveyor belt 37 slides against the upper surface of the base frame 1, allowing the conveyor belt 37 to run smoothly along the set direction. Meanwhile, the outer side of the positioning wheel 36, which is fixedly installed on one side of the conveyor frame 35, slides and fits against the upper surface of the base frame 1, further guiding and positioning the conveyor belt 37 to ensure that the conveyor belt 37 does not deviate. Under the continuous movement of the conveyor belt 37, the plaster substrate is smoothly fed into the roller pressing mechanism 2, preparing for subsequent roller pressing operations.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roller press for producing plasters, comprising a base frame (1), characterized in that: The upper surface of the base frame (1) is provided with a conveying mechanism (3), and a roller pressing mechanism (2) is fixedly provided on one side of the base frame (1); The roller pressing mechanism (2) includes a roller pressing frame (20). One side of the roller pressing frame (20) is fixedly connected to the base frame (1). An adjusting screw (23) is threaded into the upper surface of the roller pressing frame (20). An adjusting bracket (22) is rotatably mounted on the lower surface of the adjusting screw (23). The two sides of the adjusting bracket (22) slide against the inner walls of the two sides of the roller pressing frame (20). Pressure rollers (21) are rotatably mounted on the inner sides of both the adjusting bracket (22) and the roller pressing frame (20). A driven bevel gear (29) is fixedly mounted on one end of the pressure roller (21). A roller is fixedly mounted on one side of the roller pressing frame (20). A roller press motor (25) is provided with a rotating rod (27) fixedly installed at the output end of the roller press motor (25). A driving bevel gear (28) is fixedly installed on the outer side of the rotating rod (27). The outer side of the driving bevel gear (28) is meshed with one of the driven bevel gears (29). An adjusting bevel gear (201) is slidably installed on the outer side of the rotating rod (27). The adjusting bevel gear (201) is rotatably connected to one side of the adjusting frame (22). A positioning block (202) is fixedly installed on the inner side of the adjusting bevel gear (201). The positioning block (202) is slidably attached to the outer side of the rotating rod (27).

2. The roller press for producing plasters according to claim 1, characterized in that: The conveying mechanism (3) includes a conveying motor (30), one side of which is fixedly connected to one side of the base frame (1). A drive rod (31) is fixedly provided at the output end of the conveying motor (30). Two drive wheels (32) are fixedly provided on the outer side of the drive rod (31). A conveyor belt (37) is meshed with the outer side of the drive wheels (32). The outer side of the conveyor belt (37) is slidably attached to the upper surface of the base frame (1). A driven wheel (34) is meshed with the inner side of the conveyor belt (37). A conveyor frame (35) is fixedly provided on the upper surface of the base frame (1). The lower surface of the conveyor frame (35) is rotatably connected to the driven wheel (34).

3. The roller press for producing plasters according to claim 1, characterized in that: The upper end of the adjusting screw (23) is fixedly provided with a rocker wheel (24).

4. A roller press for producing plasters according to claim 1, characterized in that: A roller pressing mounting bracket (26) is fixedly provided on one side of the roller pressing frame (20), and the upper surface of the roller pressing mounting bracket (26) is fixedly engaged with the roller pressing motor (25).

5. A roller press for producing plasters according to claim 1, characterized in that: The outer side of the rotating rod (27) is provided with a positioning groove (203), and the inner side of the positioning groove (203) is slidably attached to the positioning block (202).

6. A roller press for producing plasters according to claim 1, characterized in that: A conveyor mounting frame (38) is fixedly provided on one side of the base frame (1), and one side of the conveyor mounting frame (38) is fixedly engaged with the conveyor motor (30).

7. A roller press for producing plasters according to claim 1, characterized in that: The base frame (1) has drive holes (33) on both sides, and the inner side of the drive hole (33) is rotatably connected to one end of the drive rod (31).

8. A roller press for producing plasters according to claim 2, characterized in that: A positioning wheel (36) is fixedly provided on one side of the conveyor frame (35), and the outer side of the positioning wheel (36) slides against the upper surface of the base frame (1).

Images