A double roller tablet press

Abstract

The utility model relates to tablet press technical field discloses a double roller tablet press, including the body, the body outer wall is provided with a plurality of adjusting wheel, the adjusting wheel inner wall is fixedly connected with the lead screw no.

Description

Technical Field

[0001] This utility model relates to the field of tablet press technology, and in particular to a double-roller tablet press. Background Technology

[0002] In the processing of materials such as thermal grease, rubber, and plastics, the twin-roll press has become a key piece of equipment in the production process due to its core function of extruding materials into uniform sheets. Especially in the processing of thermal grease, the twin-roll press is used to sandwich the thermal grease between release films and press it into sheets of a specific thickness to meet the needs of scenarios such as heat dissipation packaging of electronic components. As the industry's requirements for processing efficiency and product diversity continue to increase, the twin-roll press not only needs to ensure the stability of the pressed sheet quality, but also needs to be able to adapt to the processing needs of different materials and reduce equipment downtime.

[0003] The core structure of existing double-roll tablet presses typically includes a machine body, a drive motor, two sets of pressure rollers, a roller gap adjustment mechanism, and a discharge mechanism. The pressure rollers are usually installed using a bearing housing and bolt fastening method. The two ends of the pressure rollers are connected to the bearing housings through bearings, and the bearing housings are fixed to the machine body with multiple bolts. The drive motor is connected to the pressure rollers through a belt or gear transmission mechanism, providing rotational power to the pressure rollers and realizing the extrusion molding of materials. The roller gap adjustment mechanism is mostly a manual or electric driven screw and slider structure. By adjusting the lateral position of the pressure rollers, the distance between the rollers is changed to control the tablet thickness.

[0004] Existing twin-roll tablet presses still have room for improvement in the ease of roller replacement when adapting to different material processing needs. Since the rollers are fixed to the machine body by bearing seats and multiple bolts, replacing the rollers requires using special tools to disassemble the bolts fixing the bearing seats one by one before the old roller can be removed. Installing a new roller requires repeating the above steps in reverse. This not only requires operators to have a certain level of tool proficiency but also takes a considerable amount of time to accurately align the bolts during disassembly and installation. Especially in scenarios where roller materials need to be frequently switched to process different types of thermal grease, the long roller replacement time leads to increased machine downtime, which to some extent affects overall production efficiency and makes it difficult to quickly respond to diverse processing needs. Therefore, a twin-roll tablet press is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a double-roller tablet press, which aims to improve the problem of cumbersome roller replacement process when adapting to different material processing requirements in existing double-roller tablet presses.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-roller tablet press, comprising a machine body, a plurality of adjusting wheels arranged on the outer wall of the machine body, a lead screw fixedly connected to the inner wall of the adjusting wheels, the lead screw threadedly connected to the outer wall of the inner wall of the machine body, a fixed seat fixedly connected to the inner wall of the machine body, a slider slidably connected to the inner wall of the fixed seat, the lead screw threadedly connected to the inner wall of the slider, a motor fixedly connected to the inner wall of the slider, a sleeve fixedly connected to the output end of the motor, a pressure roller slidably connected to the inner wall of the sleeve, a connecting seat 1 and a connecting seat 2 arranged at one end of the pressure roller, a fixing block 1 fixedly connected to the outer wall of the connecting seat 1, a fixing block 2 fixedly connected to the outer wall of the connecting seat 2, and a limit component arranged on the outer wall of the fixing block 2; The limiting component includes a second knob, a second lead screw, and a second slider. The second knob is disposed on the outer wall of the second fixed block. One end of the second lead screw is fixedly connected to the outer wall of the second knob. The outer wall of the second slider is slidably connected to the inner wall of the second fixed block. The outer wall of the second lead screw is threadedly connected to the second slider and the inner wall of the second fixed block. The inner wall of the second fixed block is provided with a sliding component.

[0007] The above technical solution constructs a pressure roller drive and basic adjustment structure through components such as the machine body, adjusting wheel, and lead screw. This structure can drive the pressure roller to rotate via the motor and sleeve to extrude and form materials, and can also adjust the pressure roller spacing via the adjusting wheel, lead screw, and slider to control the thickness of the pressed sheet. At the same time, the connecting seat, connecting seat 2, and limiting components provide stable support for the pressure roller, laying the foundation for quick replacement of the pressure roller in the future.

[0008] Preferably, the sliding assembly includes a limiting block, a connecting frame, and a spring. The outer wall of the limiting block is slidably connected to the inner wall of the first fixed block. The lower surface of the connecting frame is fixedly connected to the upper surface of the first fixed block. One end of the spring is fixedly connected to the outer wall of the limiting block, and the other end of the spring is fixedly connected to the outer wall of the connecting frame. The outer wall of the limiting block is slidably connected to the inner walls of the second fixed block and the second slider.

[0009] Through the above technical solution, the sliding component cooperates with fixed block one, fixed block two, and slider two to form a pressure roller limiting and resetting structure. The limiting block can fix the position of connecting seat one with the cooperation of slider two, ensuring that the pressure roller is stable and does not deviate when working. At the same time, the spring stores elastic potential energy when the limiting block is pushed up, and drives the limiting block to automatically reset after being released, realizing convenient limiting and unlocking when the pressure roller is replaced, and improving the pressure roller replacement efficiency.

[0010] Preferably, a fixing block three is fixedly connected to the outer wall of the fixing base, and a fixing plate is fixedly connected to the inner wall of the fixing block three.

[0011] Through the above technical solution, the fixing block three on the fixed seat and the fixing plate form a discharge guide support structure. The fixing block three provides a stable installation base for the fixing plate, and the fixing plate is used to guide the pressed tablets to accurately enter the subsequent discharge components, so as to avoid the tablets from shifting or falling during the conveying process and ensure the smoothness of the tablet conveying process.

[0012] Preferably, a second sleeve is fixedly connected to the outer wall of the fixing plate, and a connecting rod is rotatably connected to the inner wall of the second sleeve.

[0013] Through the above technical solution, the sleeve two on the fixed plate and the connecting rod form a rotating support structure for the discharge plate. The sleeve two provides stable rotational support for the connecting rod, and the connecting rod serves as the rotation axis of the discharge plate, ensuring that the discharge plate can rotate stably around it, thus providing a structural basis for subsequent discharge angle adjustment.

[0014] Preferably, a discharge plate is fixedly connected to the outer wall of the connecting rod, and the outer wall of the discharge plate is rotatably connected to the outer wall of the second sleeve.

[0015] The above technical solution uses a discharge plate driven by a connecting rod to form a tablet conveying structure. The discharge plate receives the tablets guided by the fixed plate and can rotate with the connecting rod to adjust the angle, thereby accurately conveying the tablets to different collection positions to meet diverse collection and subsequent processing needs.

[0016] Preferably, the outer wall of the sleeve two is provided with left and right symmetrical sliders three, and the inner wall of the slider three is threadedly connected with a lead screw three.

[0017] Through the above technical solution, the slide block three on the outer wall of the sleeve two and the lead screw three form a discharge angle adjustment transmission structure. The lead screw three can drive the slide block three to move. When the slide block three moves, it drives the discharge plate to rotate around the connecting rod, realizing flexible adjustment of the discharge plate angle and providing power transmission support for precise control of the tablet discharge direction.

[0018] Preferably, a knob is fixedly connected to one end of the lead screw, and the outer wall of the lead screw is threaded to the inner wall of the machine body.

[0019] The above technical solution establishes a manual adjustment mechanism for the discharge angle using a knob at one end of the lead screw. Knob 1 provides a convenient manual operation interface for operators. Rotating knob 1 drives the lead screw to rotate, thereby adjusting the discharge plate angle of subsequent components, reducing the difficulty of discharge adjustment and improving operational convenience.

[0020] Preferably, the outer wall of the fixed base is fixedly connected to a slide rail, and the inner wall of the slider is slidably connected to the outer wall of the slide rail.

[0021] Through the above technical solution, the slide rail on the fixed base and the slider three cooperate to form a sliding guide structure for the slider three. The slide rail restricts the slider three to slide smoothly only in a preset direction, avoiding the slider three from deviating during the movement and causing deviation in the adjustment of the discharge plate angle, thus ensuring accurate and smooth adjustment of the discharge angle.

[0022] This utility model has the following beneficial effects: 1. In this utility model, a quick-release pressure roller structure is formed by a fixed block 2, a knob 2, and a lead screw 2. Turning the knob 2 will cause the lead screw 2 to drive the slider 2 to release the limit block. After pushing the limit block upward and squeezing the spring, the connecting seat 1 can be removed and the pressure roller can be slid out of the sleeve 1 for disassembly. After replacing the pressure roller, the spring rebounds and causes the limit block to reset. Turning the knob 2 again will allow the slider 2 to re-limit the pressure. Through the cooperation of this structure, the effect of quick disassembly and installation of pressure rollers without complicated tools is achieved, which greatly shortens the replacement time of pressure rollers of different materials, reduces equipment downtime, meets the diverse thermal grease pressing needs, and is especially suitable for production scenarios that require frequent switching of pressure roller materials.

[0023] 2. In this utility model, the discharge angle adjustment structure, consisting of knob one, lead screw three, and slider three, allows the discharge plate to rotate within sleeve two by rotating knob one, which drives lead screw three to slide along slide rail. This allows the discharge plate to rotate around the connecting rod as the center, thus enabling free adjustment of the discharge angle. This structural design achieves precise control of the discharge direction of the thermal grease tablets. It can transport the tablets to different designated locations according to the collection location or the layout requirements of subsequent processing equipment, avoiding accumulation and damage of the tablets during collection. It also simplifies the connection process with subsequent processes, improving overall production efficiency and operational flexibility. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a double-roller tablet press proposed in this utility model; Figure 2 This is a schematic diagram of the pressure roller section of a double-roller tablet press according to the present invention. Figure 3 This is a schematic diagram of a portion of the sleeve structure of a double-roller tablet press proposed in this utility model; Figure 4 This is a schematic diagram of a portion of the connecting seat of a double-roller tablet press proposed in this utility model; Figure 5 This is a schematic diagram of the limiting block structure of a double-roller tablet press proposed in this utility model; Figure 6 This is a schematic diagram of the discharge plate section of a double-roller tablet press according to the present invention. Figure 7This is a schematic diagram of the fixed plate part of a double-roller tablet press proposed in this utility model; Figure 8 This is a schematic diagram of the three-part structure of the slider of a double-roller tablet press proposed in this utility model.

[0025] Legend: 1. Machine body; 2. Adjusting wheel; 3. Pressure roller; 4. Sleeve 1; 5. Motor; 6. Lead screw 1; 7. Fixed seat; 8. Connecting seat 1; 9. Connecting seat 2; 10. Fixed block 1; 11. Fixed block 2; 12. Knob 1; 13. Slider 1; 14. Limit block; 15. Connecting frame; 16. Spring; 17. Knob 2; 18. Lead screw 2; 19. Slider 2; 20. Fixed plate; 21. Sleeve 2; 22. Discharge plate; 23. Connecting rod; 24. Slider 3; 25. Fixed block 3; 26. Lead screw 3; 27. Slide rail. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail below.

[0027] Reference Figures 1-5 The present invention provides an embodiment of a double-roller tablet press, comprising a machine body 1, a plurality of adjusting wheels 2 are provided on the outer wall of the machine body 1, and a lead screw 6 is fixedly connected to the inner wall of the adjusting wheel 2. The adjusting wheel 2 provides a manual operation interface for adjusting the roller gap. When the operator rotates the adjusting wheel 2, it can drive the lead screw 6 to rotate. The outer wall of the lead screw 6 is threadedly connected to the inner wall of the machine body 1. A fixed seat 7 is fixedly connected to the inner wall of the machine body 1. A slider 13 is slidably connected to the inner wall of the fixed seat 7. The outer wall of the lead screw 6 is threadedly connected to the inner wall of the slider 13. The lead screw 6 converts the rotational motion of the adjusting wheel 2 into the linear motion of the slider 13. A motor 5 is fixedly connected to the inner wall of slider 13. A sleeve 4 is fixedly connected to the output end of motor 5. A pressure roller 3 is slidably connected to the inner wall of sleeve 4. Sleeve 4 engages with the end of pressure roller 3 with a protrusion through an internal groove, transmitting the rotational power of motor 5 to pressure roller 3, causing pressure roller 3 to rotate synchronously. At the same time, it provides installation positioning for pressure roller 3, ensuring stable power transmission. Slider 13 converts the linear motion transmitted by lead screw 6 into the movement of sleeve 4 and pressure roller 3, causing pressure roller 3 to move closer to or away from another pressure roller 3. One end of the pressure roller 3 is provided with a connecting seat 1 8 and a connecting seat 2 9. The connecting seat 1 8 and the connecting seat 2 9 cooperate to provide rotational support for the end of the pressure roller 3 away from the sleeve 1 4, ensuring that the pressure roller 3 is subjected to balanced force and stable rotation when rotating to press the sheet. They can be removed together with the pressure roller 3 for easy replacement. The outer wall of the connecting seat 1 8 is fixedly connected to a fixing block 10, and the outer wall of the connecting seat 2 9 is fixedly connected to a fixing block 2 11. The outer wall of the fixing block 2 11 is provided with a limit component. The limiting assembly includes a knob 17, a lead screw 18, and a slider 19. The knob 17 is located on the outer wall of the fixed block 11. One end of the lead screw 18 is fixedly connected to the outer wall of the knob 17. The lead screw 18 converts the rotational motion of the knob 17 into the linear motion of the slider 19. The outer wall of the slider 19 is slidably connected to the inner wall of the fixed block 11. When the operator turns the knob 17, it can drive the lead screw 18 to rotate, thereby driving the slider 19 to slide. The outer wall of the lead screw 18 is threaded to the inner wall of the slider 19 and the fixed block 11. The inner wall of the fixed block 10 is provided with a sliding component, which includes a limit block 14, a connecting frame 15 and a spring 16. The outer wall of the limit block 14 is slidably connected to the inner wall of the fixed block 10. When the limit block 14 is engaged, it can fix the position of the connecting seat 8 and prevent the pressure roller 3 from shifting during operation. When it is pushed upward, it can disengage from the fixed block 11, release the limit on the connecting seat 8, and facilitate the replacement of the pressure roller 3. The lower surface of the connecting frame 15 is fixedly connected to the upper surface of the fixing block 10. One end of the spring 16 is fixedly connected to the outer wall of the limiting block 14. When the limiting block 14 is pushed up, the spring 16 is compressed and stores elastic potential energy. After the limiting block 14 is released, the elastic potential energy is released, which drives the limiting block 14 to reset downward and lock into the fixing block 11, providing power for the automatic reset of the limiting block 14. The other end of the spring 16 is fixedly connected to the outer wall of the connecting frame 15. The outer wall of the limiting block 14 is slidably connected to the inner wall of the fixing block 11 and the slider 19.

[0028] Specifically, the adjusting wheel 2 on the outer wall of the machine body 1 provides a manual operation interface for adjusting the roller gap. Rotating the adjusting wheel 2 drives the lead screw 6 to rotate, which converts the rotational motion into the linear motion of the slider 13. The slider 13 drives the motor 5, sleeve 4, and pressure roller 3 to move, thereby adjusting the gap between the two pressure rollers 3. The motor 5 provides rotational power to the pressure roller 3. The sleeve 4 engages with the protrusion of the pressure roller 3 through a groove, transmitting power and positioning the pressure roller 3. The connecting seat 8 at one end of the pressure roller 3 cooperates with the connecting seat 9 to support the stable rotation of the pressure roller 3 and facilitates movement with the pressure roller. 3. The fixing block 10 of the connecting seat 18 and the fixing block 211 of the connecting seat 29 are used in conjunction with the limiting component. In the limiting component, the knob 217 drives the lead screw 218 to rotate, and the lead screw 218 drives the slider 219 to slide, thereby limiting or releasing the limiting block 14. In the sliding component, the limiting block 14 can fix the position of the connecting seat 18 or release the limiting. The connecting frame 15 provides support for the spring 16. When the limiting block 14 is pushed up, the spring 16 is squeezed to store energy. After being released, it drives the limiting block 14 to reset. The whole process realizes the quick disassembly and installation of the pressure roller 3.

[0029] Reference Figures 6-8The outer wall of the fixed base 7 is fixedly connected to the fixed block 3 25, the inner wall of the fixed block 3 25 is fixedly connected to the fixed plate 20, the outer wall of the fixed plate 20 is fixedly connected to the sleeve 21, the inner wall of the sleeve 21 is rotatably connected to the connecting rod 23, the outer wall of the connecting rod 23 is fixedly connected to the discharge plate 22, the sleeve 21 provides rotational support for the connecting rod 23 to ensure that the connecting rod 23 can stably drive the discharge plate 22 to rotate, the outer wall of the discharge plate 22 is rotatably connected to the outer wall of the sleeve 21, the discharge plate 22 receives the thermally conductive silicone grease pressed sheet guided by the fixed plate 20, and conveys the pressed sheet to different collection positions by adjusting its own angle, and can rotate around the connecting rod 23; The outer wall of the sleeve 21 is provided with symmetrical sliders 3 24. The inner wall of the slider 3 24 is threaded with a lead screw 3 26. The slider 3 24 converts the linear motion transmitted by the lead screw 3 26 into the driving force of the discharge plate 22, which drives the discharge plate 22 to rotate around the connecting rod 23. One end of the lead screw 3 26 is fixedly connected to a knob 12. When the operator rotates the knob 12, the lead screw 3 26 can be driven to rotate, thereby driving the subsequent components to adjust the angle of the discharge plate 22. The outer wall of the lead screw 3 26 is threadedly connected to the inner wall of the machine body 1. The outer wall of the fixed seat 7 is fixedly connected to a slide rail 27. The inner wall of the slider 3 24 is slidably connected to the outer wall of the slide rail 27.

[0030] Specifically, sleeve 21 supports the stable rotation of connecting rod 23, which in turn drives the discharge plate 22 to rotate. The discharge plate 22 receives the pressed tablets and transports them to different positions by adjusting the angle. Slider 3 24 on the outer wall of sleeve 21 cooperates with lead screw 3 26. Driven by knob 12, lead screw 3 26 rotates, driving slider 3 24 to slide along slide rail 27. Slider 3 24 pushes the discharge plate 22 to rotate around connecting rod 23, thereby achieving flexible adjustment of the discharge angle and ensuring that the pressed tablets are accurately transported to the designated collection position.

[0031] Working principle: When the double roller tablet press is needed, the motor 5 inside the machine body 1 first drives the sleeve 4 to rotate. The sleeve 4 engages with the end of the pressure roller 3 with the protrusion through the internal groove, thereby driving the pressure roller 3 to rotate synchronously. Before operation, the thermal grease is sandwiched between two release films to form a sample. Then the sample is fed between the two pressure rollers 3. By rotating the adjusting wheel 2, the lead screw 6 can drive the slider 13, and the sleeve 4 and the pressure roller 3 can slide along the fixed seat 7 in conjunction, thereby adjusting the distance between the two pressure rollers 3, and finally pressing the sample into a thermal grease tablet. After the thermal grease sheet is pressed, it will enter the symmetrically arranged discharge plate 22 through the symmetrically fixed plate 20. At this time, turning the knob 12 can drive the lead screw 26 to rotate, so that the slider 24 slides along the slide rail 27, thereby driving the discharge plate 22 to move in the groove of the slider 24. This causes the discharge plate 22 to rotate in the sleeve 21 with the connecting rod 23 as the center, realizing flexible adjustment of the discharge angle and accurately delivering the thermal grease sheet to different collection positions. When it is necessary to replace the pressure roller 3 with one of different materials, first turn the knob 17 on the outside of the fixing block 11 to make the screw 18 drive the slider 19 to slide inside the fixing block 11, releasing the slider 19 from limiting the limit block 14. Then, push the limit block 14 inside the fixing block 10 upward, which will simultaneously drive the spring 16 to slide up and cooperate with the connecting frame 15 to compress the spring 16. At this time, the connecting seat 8 can be removed, and the pressure roller 3 can be slid out from the sleeve 4 to complete the disassembly. When replacing the new pressure roller 3, first slide the end with the protrusion into the sleeve 4, and then place the connecting seat 8 above the connecting seat 9. The compressed spring 16 will drive the limit block 14 to be stuck in the fixing block 11. Finally, turn the knob 17 to make the screw 18 drive the slider 19 to limit the limit block 14 again. At this time, when the motor 5 drives the sleeve 4 to rotate, the pressure roller 3 can rotate stably in the connecting seat 8 and the connecting seat 9, ensuring that the pressing work is carried out normally.

Claims

1. A two-roll tablet press, comprising a machine body (1), characterized in that: The outer wall of the machine body (1) is provided with multiple adjusting wheels (2). The inner wall of the adjusting wheel (2) is fixedly connected with a lead screw (6). The outer wall of the lead screw (6) is threaded to the inner wall of the machine body (1). The inner wall of the machine body (1) is fixedly connected with a fixed seat (7). The inner wall of the fixed seat (7) is slidably connected with a slider (13). The outer wall of the lead screw (6) is threaded to the inner wall of the slider (13). The inner wall of the slider (13) is fixedly connected with a motor (5). The output end of the motor (5) is fixedly connected with a sleeve (4). The inner wall of the sleeve (4) is slidably connected with a pressure roller (3). One end of the pressure roller (3) is provided with a connecting seat (8) and a connecting seat (9). The outer wall of the connecting seat (8) is fixedly connected with a fixing block (10). The outer wall of the connecting seat (9) is fixedly connected with a fixing block (11). The outer wall of the fixing block (11) is provided with a limit component. The limiting assembly includes a second knob (17), a second lead screw (18), and a second slider (19). The second knob (17) is disposed on the outer wall of the second fixed block (11). One end of the second lead screw (18) is fixedly connected to the outer wall of the second knob (17). The outer wall of the second slider (19) is slidably connected to the inner wall of the second fixed block (11). The outer wall of the second lead screw (18) is threadedly connected to the second slider (19) and the inner wall of the second fixed block (11). The inner wall of the first fixed block (10) is provided with a sliding assembly.

2. The double-roll tablet press according to claim 1, characterized in that: The sliding assembly includes a limiting block (14), a connecting frame (15), and a spring (16). The outer wall of the limiting block (14) is slidably connected to the inner wall of the first fixed block (10). The lower surface of the connecting frame (15) is fixedly connected to the upper surface of the first fixed block (10). One end of the spring (16) is fixedly connected to the outer wall of the limiting block (14), and the other end of the spring (16) is fixedly connected to the outer wall of the connecting frame (15). The outer wall of the limiting block (14) is slidably connected to the inner walls of the second fixed block (11) and the second slider (19).

3. A double-roll tablet press according to claim 1, characterized in that: The outer wall of the fixed base (7) is fixedly connected to a fixing block three (25), and the inner wall of the fixing block three (25) is fixedly connected to a fixing plate (20).

4. A double-roll tablet press according to claim 3, characterized in that: The outer wall of the fixed plate (20) is fixedly connected to the sleeve two (21), and the inner wall of the sleeve two (21) is rotatably connected to the connecting rod (23).

5. A double-roll tablet press according to claim 4, characterized in that: The outer wall of the connecting rod (23) is fixedly connected to the discharge plate (22), and the outer wall of the discharge plate (22) is rotatably connected to the outer wall of the sleeve (21).

6. A double-roll tablet press according to claim 5, characterized in that: The outer wall of the sleeve two (21) is provided with left and right symmetrical slider three (24), and the inner wall of the slider three (24) is threaded with screw three (26).

7. A double-roll tablet press according to claim 6, characterized in that: One end of the lead screw (26) is fixedly connected to a knob (12), and the outer wall of the lead screw (26) is threaded to the inner wall of the machine body (1).

8. A two-roll tablet press according to claim 6, characterized in that: The outer wall of the fixed base (7) is fixedly connected to the slide rail (27), and the inner wall of the slider three (24) is slidably connected to the outer wall of the slide rail (27).

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