Stroke limiting device for reciprocating picker

Abstract

The utility model relates to cotton grabber field discloses a stroke limiting stop device of reciprocating cotton grabber, including fixed guide rail, the top sliding installation of fixed guide rail has cotton grabber main part, the bottom fixed mounting of cotton grabber main part has two drive wheel groups, the inside of two drive wheel groups all is provided with adjusting chamber, and the inside of two adjusting chambers all is equipped with adjusting mechanism, the top fixed mounting of fixed guide rail has four buffer pedestals, and four buffer pedestals all are equipped with buffer mechanism. The utility model has the following advantages and effect: through the threaded rod rotation drive threaded sleeve moves along the axial movement, and further adjust the length that the length of limiting baffle extends, more accurate control limiting trigger's position, need not to dismantle the component to adjust the stroke of cotton grabber to adapt to different batches raw material to catch the demand, improved the flexibility of equipment production, and can reduce the impact force that cotton grabber causes to limiting device when reversing, improve the reliability of limiting.

Description

Technical Field

[0001] This utility model relates to the field of cotton grabbing machine technology, and in particular to a stroke limit device for a reciprocating cotton grabbing machine. Background Technology

[0002] The reciprocating cotton grabber is a key piece of equipment in the front end of cotton spinning production. Its main function is to evenly grab and loosen compressed cotton bales, providing raw materials for subsequent processes such as opening and carding. It operates by reciprocating along a track, equipped with a travel limit device to control its operating range, trigger reversal, and provide safety protection. It features a high degree of automation and uniform and stable grabbing, making it one of the fundamental pieces of equipment for achieving continuous and efficient cotton spinning production lines. Reciprocating cotton grabbers are mostly equipped with travel limit devices, whose function is to ensure that the grabber reciprocates within the set track range, preventing equipment failure or safety accidents caused by overtravel.

[0003] In related technologies, existing travel limit devices mostly rely on the triggering component of the cotton grabber striking the roller or contact of the switch to activate the internal contacts of the switch, thereby stopping the cotton grabber's movement in the current direction and controlling the motor to reverse, causing the cotton grabber to run in the opposite direction. However, during the production process, if it is necessary to grab different batches of raw materials, it is necessary to disassemble and replace the components according to the grabbing requirements to adjust the travel on-site, resulting in poor production flexibility. Furthermore, the existing limit devices experience significant reversing impact from the cotton grabber on the limit devices during use, greatly shortening the service life of the limit devices.

[0004] Therefore, we propose a stroke limit device for a reciprocating cotton grabber to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a stroke limit device for a reciprocating cotton grabber, which has the advantages of high production flexibility and long service life.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a stroke limiting device for a reciprocating cotton grabber, comprising a fixed guide rail, a cotton grabber body slidably mounted on the top of the fixed guide rail, two drive wheel sets fixedly mounted on the bottom of the cotton grabber body, each of the two drive wheel sets having an adjustment chamber inside, and each of the two adjustment chambers having an adjustment mechanism inside; four buffer bases fixedly mounted on the top of the fixed guide rail, and each of the four buffer bases having a buffer mechanism.

[0007] A further feature of this invention is that guide openings are provided on both sides of the two drive wheel sets, the four guide openings are respectively connected to the corresponding adjustment chambers, and guide grooves are provided on the top inner walls of the four guide openings.

[0008] By adopting the above technical solution, the direction of movement of the threaded sleeve can be controlled.

[0009] A further feature of this invention is that the adjustment mechanism includes a dual-axis motor, two threaded rods, and two threaded sleeves. The dual-axis motor is fixedly installed on the bottom inner wall of the adjustment chamber. Threaded rods are fixedly installed on both output shafts of the dual-axis motor. The threads of the two threaded rods are opposite. Threaded sleeves are threaded onto the outer sides of both threaded rods, and both threaded sleeves extend out of the adjustment chamber.

[0010] By adopting the above technical solution, the threaded rod can be used to drive the corresponding threaded sleeve to move.

[0011] A further feature of this invention is that guide bars are fixedly installed on the top of both threaded sleeves, the two guide bars are slidably installed on the inner side of the corresponding guide grooves, and limit baffles are fixedly installed on one end of both threaded sleeves.

[0012] By adopting the above technical solution, the limit baffle can be moved by the threaded sleeve.

[0013] A further feature of this invention is that two rigid stop blocks are fixedly installed at both ends of the fixed guide rail, and a polyurethane buffer pad is fixedly installed on one side of each of the four rigid stop blocks.

[0014] By adopting the above technical solution, the equipment can be forcibly shut down by physical obstruction when a malfunction occurs.

[0015] A further feature of this invention is that a supporting metal block is fixedly installed on the other side of each of the four rigid stop blocks, and an anti-slip rubber pad is fixedly installed on the bottom of each of the four supporting metal blocks.

[0016] By adopting the above technical solution, the blocking force of the rigid stop block can be enhanced.

[0017] A further feature of this invention is that each of the four buffer bases is fixedly equipped with a limit switch on its top, and the trigger ends of the four limit switches respectively abut against the corresponding limit baffles.

[0018] By adopting the above technical solution, the limit switch can be triggered by the limit baffle.

[0019] The present invention is further configured as follows: the buffer mechanism includes a compression metal block, two linkage metal strips, two linkage metal blocks, two clamping metal blocks, and two rubber pads. A sliding groove is provided on the inner side of the buffer base, and a compression metal block is slidably installed on the inner side of the sliding groove. Both sides of the compression metal block are inclined surfaces, and linkage metal strips are fixedly installed on both inclined surfaces. Clamping openings are provided on both sides of the buffer base, and linkage metal blocks are slidably installed on the inner side of both clamping openings. Linkage grooves are provided on the side of each linkage metal block that contacts the corresponding inclined surface. The two linkage metal strips are adapted to their respective linkage grooves. Clamping metal blocks are fixedly installed on one side of each linkage metal block. Rubber pads are fixedly installed on the sides of the two clamping metal blocks that are close to each other. Both rubber pads are used to clamp the same drive wheel assembly.

[0020] By adopting the above technical solution, the driving wheel assembly can be clamped by two rubber pads to slow down its movement speed.

[0021] A further feature of this invention is that two return springs are fixedly installed on one inner wall of the sliding groove, and the other ends of the two return springs are fixedly connected to the same extruded metal block.

[0022] By adopting the above technical solution, it is easy to drive the extruded metal block to reset.

[0023] A further feature of this invention is that a buffer trigger bar is fixedly installed on one side of each of the four limiting baffles, and the four buffer trigger bars respectively abut against the corresponding extrusion metal blocks.

[0024] By adopting the above technical solution, the two clamping metal blocks can be moved closer to each other by the buffer trigger bar, thereby slowing down the speed of the cotton grabber body and reducing the reversing impact force.

[0025] This application includes at least one of the following beneficial technical effects:

[0026] This application utilizes an adjustment mechanism consisting of a threaded sleeve and a baffle. By rotating the threaded rod, the threaded sleeve moves axially, thereby adjusting the length of the limit baffle extension. This allows for more precise control of the limit trigger position. The stroke of the cotton grabber can be adjusted without disassembling parts, thus adapting to the grabbing needs of different batches of raw materials and improving the flexibility of equipment production.

[0027] This application utilizes a buffer mechanism consisting of a compression metal block and a deceleration clamp to reduce the impact force on the limit device when the cotton grabber reverses direction, thereby improving the reliability of the limit and extending the service life of the equipment. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of a stroke limiting device for a reciprocating cotton grabber proposed in this utility model;

[0030] Figure 2 This is a three-dimensional structural disassembly diagram of a reciprocating cotton grabber with a stroke limiting device proposed in this utility model.

[0031] Figure 3 This is a three-dimensional structural disassembly diagram of the adjustment mechanism of the stroke limit device of a reciprocating cotton grabber proposed in this utility model.

[0032] Figure 4 This is a three-dimensional structural diagram of the buffer mechanism of the stroke limiting device of a reciprocating cotton grabber proposed in this utility model.

[0033] Figure 5 This is a three-dimensional structural disassembly diagram of the buffer mechanism of the stroke limiting device of a reciprocating cotton grabber proposed in this utility model.

[0034] In the diagram: 1. Fixed guide rail; 2. Main body of the cotton grabber; 3. Drive wheel assembly; 4. Adjustment chamber; 5. Threaded sleeve; 6. Guide bar; 7. Threaded rod; 8. Dual-shaft motor; 9. Limit baffle; 10. Buffer trigger bar; 11. Buffer base; 12. Rigid stop block; 13. Polyurethane buffer pad; 14. Supporting metal block; 15. Anti-slip rubber pad; 16. Limit switch; 17. Return spring; 18. Extrusion metal block; 19. Linkage metal bar; 20. Linkage metal block; 21. Linkage groove; 22. Clamping metal block; 23. Rubber pad. Detailed Implementation

[0035] Reference Figure 1-5 A stroke limiting device for a reciprocating cotton grabber includes a fixed guide rail 1, a cotton grabber body 2 slidably mounted on the top of the fixed guide rail 1, two drive wheel sets 3 fixedly mounted on the bottom of the cotton grabber body 2, each of the two drive wheel sets 3 having an adjustment chamber 4 inside, and each of the two adjustment chambers 4 having an adjustment mechanism inside; four buffer bases 11 fixedly mounted on the top of the fixed guide rail 1, and each of the four buffer bases 11 having a buffer mechanism.

[0036] In this embodiment, guide ports are provided on both sides of the two drive wheel sets 3. The four guide ports are connected to the corresponding adjustment chambers 4. Guide grooves are provided on the top inner walls of the four guide ports, which can control the movement direction of the threaded sleeve 5.

[0037] In this embodiment, the adjustment mechanism includes a dual-axis motor 8, two threaded rods 7, and two threaded sleeves 5. The dual-axis motor 8 is fixedly installed on the bottom inner wall of the adjustment chamber. Threaded rods 7 are fixedly installed on the two output shafts of the dual-axis motor 8. The threads of the two threaded rods 7 are opposite. Threaded sleeves 5 are threaded on the outer sides of the two threaded rods 7. The two threaded sleeves 5 extend out of the adjustment chamber 4, and the corresponding threaded sleeves 5 can be moved by the threaded rods 7.

[0038] In this embodiment, guide bars 6 are fixedly installed on the top of both threaded sleeves 5. The two guide bars 6 are slidably installed on the inner side of the corresponding guide grooves. Limiting baffles 9 are fixedly installed on one end of both threaded sleeves 5. The limiting baffles 9 can be moved by the threaded sleeves 5.

[0039] In this embodiment, two rigid stop blocks 12 are fixedly installed at both ends of the fixed guide rail 1, and polyurethane buffer pads 13 are fixedly installed on one side of each of the four rigid stop blocks 12, which can force the machine to stop by physical obstruction when the equipment malfunctions.

[0040] In this embodiment, a supporting metal block 14 is fixedly installed on the other side of each of the four rigid stop blocks 12, and an anti-slip rubber pad 15 is fixedly installed on the bottom of each of the four supporting metal blocks 14, which can enhance the blocking force of the rigid stop blocks 12.

[0041] In this embodiment, limit switches 16 are fixedly installed on the top of each of the four buffer bases 11. The trigger ends of the four limit switches 16 respectively abut against the corresponding limit baffles 9, and the limit switches 16 can be triggered by the limit baffles 9.

[0042] In this embodiment, the buffer mechanism includes a compression metal block 18, two linkage metal strips 19, two linkage metal blocks 20, two clamping metal blocks 22, and two rubber pads 23. A sliding groove is provided on the inner side of the buffer base 11, and the compression metal block 18 is slidably installed on the inner side of the sliding groove. Both sides of the compression metal block 18 are sloped, and linkage metal strips 19 are fixedly installed on both sloped surfaces. Clamping openings are provided on both sides of the buffer base 11, and linkage metal blocks 20 are slidably installed on the inner side of both clamping openings. Linkage grooves 21 are provided on the side of each linkage metal block 20 that contacts the corresponding sloped surface. The two linkage metal strips 19 are adapted to the corresponding linkage grooves 21. Clamping metal blocks 22 are fixedly installed on one side of each linkage metal block 20, and rubber pads 23 are fixedly installed on the side of each clamping metal block 22 that is close to each other. Both rubber pads 23 are used to clamp the same drive wheel assembly 3. By clamping the drive wheel assembly 3 with the two rubber pads 23, its movement speed can be reduced.

[0043] In this embodiment, two return springs 17 are fixedly installed on one inner wall of the sliding groove. The other end of each of the two return springs 17 is fixedly connected to the same extruded metal block 18, which facilitates the extruded metal block 18 to be reset.

[0044] In this embodiment, a buffer trigger bar 10 is fixedly installed on one side of each of the four limiting baffles 9. The four buffer trigger bars 10 respectively abut against the corresponding squeezing metal blocks 18. The buffer trigger bars 10 can drive the two clamping metal blocks 22 to move closer to each other, thereby slowing down the speed of the cotton grabbing machine body 2 and reducing the reversing impact force.

[0045] Working Principle: When the cotton grabber body 2 is working, it moves through two drive wheel sets 3. The operator adjusts the position of the limit baffles 9 according to the material grabbing requirements. The operator starts two dual-shaft motors 8, which drive the corresponding two threaded rods 7 to rotate. Each of the four threaded rods 7 has a threaded sleeve 5 threaded onto its outer side. Each of the four threaded sleeves 5 has a guide strip 6 fixedly installed on its top. The four guide strips 6 are slidably installed in the guide grooves opened inside the corresponding adjustment chambers 4, thus preventing the four threaded sleeves 5 from rotating. The rotation of the four threaded rods 7 drives the corresponding threaded sleeves 5 to move axially. The movement of the four threaded sleeves 5 drives the corresponding limit baffles 9 to move. By adjusting the length of the threaded sleeves 5, the position of the limit baffles 9 is changed, thereby precisely controlling the limit trigger position. When the cotton grabber body 2 moves and drives the two limit baffles 9 on one side to approach the corresponding limit switches 16, the buffer trigger strips 10 fixedly installed on one side of the two limit baffles 9 will apply pressure. The metal blocks 18 are squeezed, and the two squeezed metal blocks 18 move towards the corresponding rigid stop blocks 12 under the pressure. At this time, the two squeezed metal blocks 18 drive the two corresponding linkage metal strips 19 to move. The two sides of the two squeezed metal blocks 18 respectively contact the corresponding linkage metal blocks 20. The four linkage metal blocks 20 are provided with linkage grooves 21 on the side that contacts the corresponding squeezed metal blocks 18. The four linkage grooves 21 are respectively adapted to the corresponding linkage metal strips 19. Therefore, the movement of the four linkage metal strips 19 drives the corresponding linkage metal blocks 20 to move. The movement of the two linkage metal blocks 20 located on the same buffer base 11 drives the corresponding clamping metal blocks 22 to move closer to each other and clamp the corresponding drive wheel group 3, thereby slowing down its speed and weakening the reversing impact force. In addition, there are two rigid stop blocks 12 at both ends of the guide rail. If the equipment fails and the limit switch 16 cannot control the cotton grabbing machine body 2 to reverse, the rigid stop blocks 12 can be used to force the machine to stop by physical obstruction, so as to avoid accidents.

[0046] The technological advancements of this invention compared to existing technologies are as follows: By rotating the threaded rod 7, the threaded sleeve 5 moves axially, thereby adjusting the extension length of the limit baffle 9. This allows for more precise control of the limit trigger position. The stroke of the cotton grabber body 2 can be adjusted without disassembling parts, thus adapting to the grabbing requirements of different batches of raw materials. This improves the flexibility of equipment production and reduces the impact force on the limit switch 16 when the cotton grabber body 2 reverses direction. This enhances the reliability of the limit switch and extends the service life of the equipment.

[0047] The foregoing has provided a detailed description of the stroke limiting device for a reciprocating cotton grabber provided in this application. Specific embodiments have been used to illustrate the principles and implementation methods of this application. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A stroke limiting device for a reciprocating cotton grabber, characterized in that, Includes a fixed guide rail (1), on the top of which a cotton grabbing machine body (2) is slidably mounted, and on the bottom of the cotton grabbing machine body (2) are two drive wheel sets (3), each of the two drive wheel sets (3) having an adjustment chamber (4) inside, and each of the two adjustment chambers (4) having an adjustment mechanism inside. Four buffer bases (11) are fixedly installed on the top of the fixed guide rail (1), and each of the four buffer bases (11) is equipped with a buffer mechanism.

2. The stroke limiting device for a reciprocating cotton grabber according to claim 1, characterized in that: Guide ports are provided on both sides of the two drive wheel sets (3), and the four guide ports are connected to the corresponding adjustment chambers (4). Guide grooves are provided on the top inner walls of the four guide ports.

3. The stroke limiting device for a reciprocating cotton grabber according to claim 2, characterized in that: The adjustment mechanism includes a dual-axis motor (8), two threaded rods (7) and two threaded sleeves (5). The dual-axis motor (8) is fixedly installed on the bottom inner wall of the adjustment chamber. Threaded rods (7) are fixedly installed on the two output shafts of the dual-axis motor (8). The threads of the two threaded rods (7) are opposite. Threaded sleeves (5) are threaded on the outer sides of the two threaded rods (7). Both threaded sleeves (5) extend out of the adjustment chamber (4).

4. The stroke limiting device for a reciprocating cotton grabber according to claim 3, characterized in that: Guide bars (6) are fixedly installed on the top of both threaded sleeves (5). The two guide bars (6) are slidably installed on the inner side of the corresponding guide grooves. Limiting baffles (9) are fixedly installed on one end of both threaded sleeves (5).

5. The stroke limiting device for a reciprocating cotton grabber according to claim 4, characterized in that: Two rigid stop blocks (12) are fixedly installed at both ends of the fixed guide rail (1), and polyurethane buffer pads (13) are fixedly installed on one side of each of the four rigid stop blocks (12).

6. The stroke limiting device for a reciprocating cotton grabber according to claim 5, characterized in that: Each of the four rigid stop blocks (12) has a supporting metal block (14) fixedly installed on the other side, and each of the four supporting metal blocks (14) has an anti-slip pad (15) fixedly installed on the bottom.

7. The stroke limiting device for a reciprocating cotton grabber according to claim 6, characterized in that: Each of the four buffer bases (11) is fixedly equipped with a limit switch (16), and the trigger end of each of the four limit switches (16) is in contact with the corresponding limit baffle (9).

8. The stroke limiting device for a reciprocating cotton grabber according to claim 7, characterized in that: The buffer mechanism includes a compression metal block (18), two linkage metal strips (19), two linkage metal blocks (20), two clamping metal blocks (22), and two rubber pads (23). A sliding groove is provided on the inner side of the buffer base (11), and the compression metal block (18) is slidably mounted on the inner side of the sliding groove. Both sides of the compression metal block (18) are inclined surfaces, and linkage metal strips (19) are fixedly mounted on both inclined surfaces. Clamping openings are provided on both sides of the buffer base (11). The inner side is slidably installed with a linkage metal block (20). The two linkage metal blocks (20) are respectively provided with a linkage groove (21) on the side that contacts the corresponding inclined surface. The two linkage metal strips (19) are respectively adapted to the corresponding linkage grooves (21). The two linkage metal blocks (20) are respectively fixedly installed with a clamping metal block (22) on one side. The two clamping metal blocks (22) are respectively fixedly installed with a rubber pad (23) on the side that is close to each other. The two rubber pads (23) are used to clamp the same drive wheel group (3).

9. The stroke limiting device for a reciprocating cotton grabber according to claim 8, characterized in that: Two return springs (17) are fixedly installed on one side of the inner wall of the sliding groove, and the other end of the two return springs (17) is fixedly connected to the same extruded metal block (18).

10. The stroke limiting device of a reciprocating cotton grabber according to claim 9, characterized in that: Each of the four limit baffles (9) has a buffer trigger bar (10) fixedly installed on one side, and the four buffer trigger bars (10) respectively abut against the corresponding extrusion metal block (18).

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