Limiting device for automatic button feeding machine

Abstract

The utility model discloses a limiting device for an automatic button feeding machine, which comprises a second supporting table and a mounting block which are arranged on a supporting frame, a clamping block is arranged on one side of the second supporting table in a sliding manner, an inclined pushing block is arranged on the clamping block, a limiting block is arranged on the mounting block in a sliding manner, a tension spring is arranged between the limiting block and the supporting frame, and a fixing block is arranged on the limiting block. The fixing block is in sliding contact with the inclined push block, and a stop lever is arranged on the fixing block in a sliding mode. A limiting block is always close to a clamping block through a tension spring, and the limiting block can be pushed to move longitudinally through transverse movement of the clamping block by utilizing mutual cooperation of an inclined pushing block and a fixing block; the moving distance of the clamping block and the limiting block can be adjusted by adjusting the inclination degree of the inclined pushing block, the moving ratio of the clamping block to the limiting block is two to one finally, the clamping block can be automatically adjusted according to material buckles with different diameters, it is ensured that the centers of the material buckles blocked by the blocking rod are all located above the discharging mold, and the discharging efficiency is improved. And the feeding precision is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of button feeding machines, and in particular relates to a limiting device for an automatic button feeding machine. Background Art

[0002] With the continuous development of society, the clothing sewing industry has developed rapidly. In the clothing sewing industry, an automatic button feeding device is often used. An automatic button feeding device is a conveying device for automatically feeding buttons.

[0003] The following problems have been found in the currently used automatic button feeding device during long-term use:

[0004] First, it is difficult for the button feeding die of the existing button feeding device to be automatically aligned with the center position of the button. Manual adjustment is required every time the die is replaced, and the adjustment process is cumbersome.

[0005] Second, after each replacement of buttons of different sizes on the existing button feeding device, the adjustment of the limiting device on the conveying mechanism is relatively cumbersome.

[0006] Therefore, it is necessary for us to design a limiting device for an automatic button feeding machine to solve these problems. Summary of the Utility Model

[0007] The problem to be solved by the utility model is to provide a limiting device for an automatic button feeding machine.

[0008] To solve the above technical problems, the technical solution adopted by the utility model is:

[0009] A limiting device for an automatic button feeding machine includes a second support table and a mounting block arranged on a support frame. A clamping block is slidably arranged on one side of the second support table. An inclined push block is arranged on the clamping block. A limiting block is slidably arranged on the mounting block. A tension spring is arranged between the limiting block and the support frame. A fixing block is arranged on the limiting block. The fixing block is in sliding contact with the inclined push block. A stop rod is slidably arranged on the fixing block.

[0010] Preferably, the moving direction of the clamping block is perpendicular to the moving direction of the limiting block, and under the cooperation of the inclined push block and the fixing block, the moving distance of the clamping block is twice the moving distance of the limiting block.

[0011] With such a setting, it can ensure that the center of the material button blocked by the stop rod is aligned with the feeding die, and ensure the feeding accuracy.

[0012] Preferably, a horizontal rail is fixedly arranged on the support frame, a horizontal slider is slidably arranged on the horizontal rail, and the clamping block is fixedly connected to the horizontal slider; a limiting slider is fixedly arranged on the mounting block, a limiting rail is slidably arranged on the limiting slider, and the limiting block is fixedly arranged on the limiting rail.

[0013] With such an arrangement, the friction during the sliding of components can be reduced, and the service life of the equipment can be prolonged; at the same time, the bearing capacity and precision can also be improved.

[0014] Preferably, a limiting cylinder is fixedly arranged on the limiting block, a connecting rod is fixedly arranged at the output end of the limiting cylinder, and the connecting rod is fixedly connected to the blocking rod.

[0015] With such an arrangement, it is convenient to control the telescoping of the blocking rod.

[0016] Preferably, a bearing is also rotatably arranged on the fixing block, and the outer ring of the bearing contacts the inclined push block on the clamping block.

[0017] With such an arrangement, the sliding friction between the fixing block and the inclined push block can be changed into the rolling friction between the bearing and the inclined push block, and the service life of the equipment can be prolonged.

[0018] The advantages and positive effects of the present utility model are:

[0019] In the present utility model, the limiting block is always made to approach the clamping block by means of a tension spring. By the mutual cooperation of the inclined push block and the fixing block, the longitudinal movement of the limiting block can be driven by the lateral movement of the clamping block; the movement ratio of the clamping block to the limiting block is two to one by means of the inclined push block with a fixed inclination angle, and the clamping block can also drive the limiting block to move according to the different diameters of the second template buckles placed, automatically adjusting the material buckles on the stripper plate to ensure that the centers of the material buckles blocked by the blocking rod are all located above the feeding die, thus ensuring the feeding precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0021] Figure 1 is the overall structural schematic diagram of the present utility model;

[0022] Figure 2 is the structural schematic diagram of the base of the present utility model;

[0023] Figure 3It is the left view of a limiting device for an automatic button feeding machine according to the present utility model;

[0024] Figure 4 It is a schematic structural diagram of a discharge limiting component, a positioning mechanism and a material transfer mechanism of the present utility model;

[0025] Figure 5 It is a schematic structural diagram of the positioning mechanism of the present utility model;

[0026] Figure 6 It is a schematic structural diagram of the discharge limiting component of the present utility model;

[0027] Figure 7 It is a schematic top view structural diagram of the structure of the discharge limiting component of the present utility model;

[0028] Figure 8 It is a schematic structural diagram of the material transfer mechanism of the present utility model;

[0029] Figure 9 It is a schematic structural diagram of the positions of the main air duct and the air outlet holes in the air blowing rod of the present utility model;

[0030] Figure 10 It is a schematic diagram of the orthographic projection of the clamping block on the horizontal plane of the present utility model;

[0031] Figure 11 It is a schematic structural diagram of the second embodiment of the present utility model.

[0032] The description of the reference numerals is as follows:

[0033] 1. Base; 101. Bottom plate; 102. Middle plate; 103. Adjusting protrusion; 104. Adjusting groove; 105. Long slot; 106. Gasket; 107. Fixing bolt; 108. Top plate; 2. Support frame; 3. Feeding mechanism; 301. Material supporting plate; 302. Connecting block; 303. Longitudinal rail; 304. Longitudinal slider; 305. Blowing rod; 306. Main air duct; 307. Air outlet hole; 308. Fixing plate; 309. Sliding rod; 310. First spring; 311. Connecting frame; 312. Material pressing part; 4. Limiting mechanism; 401. Fixed seat; 402. Sliding frame; 403. Claw; 404. Limiting plate; 405. First support platform; 406. Adjusting bolt; 407. Second support platform; 408. Cross rail; 409. Cross slider; 410. Block; 411. Inclined push block; 412. Mounting block; 413. Limiting rail; 414. Limiting slider; 415. Tension spring; 416. Limiting block; 417. Fixed block; 418. Bearing; 419. Stop rod; 420. Connecting rod; 421. Limiting cylinder; 422. Adjusting block; 5. Positioning mechanism; 501. Positioning rail; 502. Positioning slider; 503. Saddle; 504. Positioning plate; 505. Second spring; 506. Stabilizing rod; 507. Positioning motor; 508. Rotating rubber particle; 509. Reset cylinder; 510. Stop block; 6. Material transferring mechanism; 601. Feeding rail; 602. Feeding slider; 603. Lifting frame; 604. Lifting cylinder; 605. Feeding plate; 606. Connecting seat; 607. Mounting frame; 608. Linear cylinder; 609. Rotating shaft; 610. Rotating driving arm; 611. Swing arm; 612. Unloading die; 7. First template buckle; 8. Second template buckle; 9. Material buckle; 10. Floating joint. Detailed implementation manners

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The following further describes the present utility model with reference to the accompanying drawings:

[0037] Embodiment 1: As Figures 1-10 shown, a limiting device for an automatic button feeding machine includes a base 1, a support frame 2 is arranged on the base 1, a feeding mechanism 3, a limiting mechanism 4, a positioning mechanism 5, and a material transferring mechanism 6 are fixedly arranged on the support frame 2. The output end of the limiting mechanism 4 is connected to the feeding mechanism 3. The positioning mechanism 5 is located above the feeding mechanism 3, and the output end of the positioning mechanism 5 is opposite to the output end of the feeding mechanism 3 in position. The material transferring mechanism 6 is located on one side of the feeding mechanism 3, and the output end of the material transferring mechanism 6 is located below the output end of the feeding mechanism 3 and is opposite to the output end of the positioning mechanism 5.

[0038] As Figure 2As shown, the base 1 includes a bottom plate 101, a middle plate 102 and a top plate 108. A lower adjustment assembly is provided between the middle plate 102 and the bottom plate 101, and an upper adjustment assembly is provided between the middle plate 102 and the top plate 108. The adjustment directions of the lower adjustment assembly and the upper adjustment assembly are perpendicular to each other. Both the lower adjustment assembly and the upper adjustment assembly include a cooperating adjustment protrusion 103 and an adjustment groove 104. The cross-sections of the adjustment protrusion 103 and the adjustment groove 104 are both rectangular, and the width of the adjustment protrusion 103 is the same as the width of the adjustment groove 104, and the thickness of the adjustment protrusion 103 is the same as the depth of the adjustment groove 104. Long slots 105 are also provided on the middle plate 102 and the top plate 108. The length extension direction of the long slot 105 on the top plate 108 is the same as the adjustment direction of the upper adjustment assembly, and the length extension direction of the long slot 105 on the middle plate 102 is the same as the adjustment direction of the lower adjustment assembly. The middle plate 102 and the bottom plate 101 are fixed by passing a fixing bolt 107 through the long slot 105 on the middle plate 102, and the top plate 108 and the middle plate 102 are fixed by passing a fixing bolt 107 through the long slot 105 on the top plate 108. And in order to prevent damage to the edge of the long slot 105 when the fixing bolt 107 is tightened, a gasket 106 is provided above the long slot 105. The width of the gasket 106 is greater than the width of the long slot 105, and the length of the gasket 106 is greater than the length of the long slot 105. The fixing bolt 107 passes through the gasket 106 to fix the bottom plate 101, the middle plate 102 and the top plate 108. The support frame 2 is fixedly arranged on the top plate 108.

[0039] In addition, the distance of adjustment can be accurately controlled by marking scales on the sides of the bottom plate 101, the middle plate 102 and the top plate 108.

[0040] As Figure 4 shown, the feeding mechanism 3 includes a material supporting plate 301 and a connecting block 302 fixed on the support frame 2. A longitudinal rail 303 is provided on the connecting block 302, a longitudinal slider 304 is provided on the longitudinal rail 303, a connecting frame 311 is fixedly arranged on the longitudinal slider 304, and a blowing rod 305 is fixedly arranged on the connecting frame 311. The blowing rod 305 is located above the material supporting plate 301.

[0041] As Figure 4 、 Figure 6 and Figure 7 shown, the limiting mechanism 4 includes a feeding limiting component and a discharging limiting component. The feeding limiting component is used to limit the material buckle 9 on the material supporting plate 301, and the discharging limiting component is used to limit the material buckle 9 transferred to the output end of the material supporting plate 301.

[0042] Specifically, the feeding limit assembly includes a first support table 405 and a fixed seat 401 fixedly arranged on the support frame 2. An adjusting block 422 is arranged above the first support table 405. The adjusting block 422 is fixedly connected to the connecting frame 311. An adjusting bolt 406 is penetrated through the adjusting block 422. Two sliding frames 402 are slidably arranged on the fixed seat 401. The two sliding frames 402 are symmetrically distributed along the material supporting plate 301. And a clamping jaw 403 is fixedly arranged on each sliding frame 402. The free ends of the two clamping jaws 403 are respectively located on both sides of the first support table 405.

[0043] Specifically, the discharging limit assembly includes a second support table 407 and a mounting block 412 fixed on the support frame 2. A cross rail 408 is fixedly arranged on the support frame 2 on one side of the second support table 407. A transverse slider 409 is slidably arranged on the cross rail 408. A clamping block 410 is fixedly arranged on the transverse slider 409. An inclined push block 411 is arranged on the clamping block 410; A limit slider 414 is fixedly arranged on the mounting block 412. A limit rail 413 is slidably arranged on the limit slider 414. A limit block 416 is fixedly arranged on the limit rail 413. A fixed block 417, a limit cylinder 421 and a stop bar 419 are arranged on the limit block 416. The stop bar 419 is slidably connected to the fixed block 417. The fixed block 417 and the limit cylinder 421 are both fixedly arranged on the limit block 416. And the output end of the limit cylinder 421 is connected to the stop bar 419. The fixed block 417 is in sliding contact with the inclined push block 411. A tension spring 415 is further arranged between the limit block 416 and the support frame 2. One end of the tension spring 415 is connected to the support frame 2. And the other end is connected to the limit block 416.

[0044] Further, a fixed plate 308 is also fixedly arranged on the connecting block 302. A sliding rod 309 is penetrated through the fixed plate 308. One end of the sliding rod 309 is connected to the connecting frame 311. A first spring 310 is sleeved on the sliding rod 309 between the connecting frame 311 and the fixed plate 308.

[0045] As Figure 5 shown, the positioning mechanism 5 includes a positioning slider 502 fixed on the support frame 2. A positioning rail 501 is slidably arranged on the positioning slider 502. A sliding plate 503 is fixedly arranged on the positioning rail 501. One end of the sliding plate 503 is fixedly connected to a positioning plate 504. A reset cylinder 509 and a positioning motor 507 are fixedly arranged on the positioning plate 504. The output end of the reset cylinder 509 is connected to the support frame 2. The output end of the positioning motor 507 is fixedly provided with a rotating rubber particle 508.

[0046] Further, a stabilizing rod 506 is penetrated through the positioning plate 504. One end of the stabilizing rod 506 is connected to the support frame 2. And the other end is fixedly provided with a stop block 510. A second spring 505 is sleeved on the stabilizing rod 506 between the positioning plate 504 and the stop block 510.

[0047] As Figure 3 and Figure 8 shown, the material transfer mechanism 6 includes a feeding rail 601 and a feeding plate 605 fixed on the support frame 2. A feeding slider 602 is slidably arranged on the feeding rail 601. A lifting frame 603 is fixedly arranged on the slider. A feeding cylinder is fixedly arranged on the feeding plate 605. The output end of the feeding cylinder is connected to the lifting frame 603. A connecting seat 606 is fixedly arranged on the lifting frame 603. An installation frame 607 and a rotating shaft 609 are arranged on the connecting seat 606. One end of the rotating shaft 609 is fixedly provided with a swing arm 611. A discharging mold 612 is detachably arranged at the free end of the swing arm 611. A plurality of positioning columns are also arranged on the discharging mold 612. The position arrangement of the plurality of positioning columns is the same as the position arrangement of the sewing holes on the material buckle 9. The other end of the rotating shaft 609 is fixedly provided with a rotating driving arm 610. A linear cylinder 608 is fixedly arranged on the installation frame 607. The output end of the linear cylinder 608 is hinged to the rotating driving arm 610.

[0048] As Figure 9 shown, a main air passage 306 and a plurality of air outlet holes 307 are arranged in the air blowing rod 305. The plurality of air outlet holes 307 are distributed along the conveying direction of the material feeding mechanism 3. The air inlet end of each air outlet hole 307 is connected to the main air passage 306, and the air outlet end is located above the material supporting plate 301.

[0049] Embodiment 2

[0050] As Figure 11 shown, on the basis of Embodiment 1, the bearing 418 is connected to the clamping block 418, and the inclined pushing block 411 is installed on the fixed block 417, so that the contact between the inclined pushing block 411 and the bearing 418 can also realize the limitation and adjustment of the protruding length of the material buckle 9 on the stripping plate 301 according to the second template buckle 8.

[0051] Working process: Before working, first pull the connecting frame 311 upward through the sliding rod 309. Under the pulling of the sliding rod 309, the longitudinal slider 304 on the connecting frame 311 will move upward along the longitudinal rail 303. Since the fixing plate 308 is installed on the connecting block 302, the first spring 310 will be compressed when the connecting frame 311 moves upward. Then, the first template buckle 7 is placed on the first supporting table 405, and then the sliding rod 309 is released, so that the first spring 310 elongates and pushes the connecting frame 311 to move downward until the connecting frame 311 stops moving downward after the end of the adjusting bolt 406 on the adjusting block 422 contacts the first template buckle 7.

[0052] At this time, the distance between the air blowing rod 305 installed on the connecting frame 311 and the material supporting plate 301 will be the same as the thickness of the first template buckle 7 on the first supporting table 405.

[0053] Next, move the sliding frame 402 installed on the fixed base 401. When the sliding frame 402 moves, it will drive the claws 403 on both sides of the first support platform 405 to move, causing the claws 403 to contact both sides of the first template buckle 7 on the first support platform 405. After the claws 403 contact the first template, the sliding frame 402 will stop moving. At this time, the distance between the two limit plates 404 installed on the sliding frame 402 will be the same as the diameter of the first template buckle 7 on the first support platform 405.

[0054] It should be noted that in order to ensure the smooth movement of the material buckle 9 on the stripper plate, the distance between the air blowing rod 305 and the material supporting plate 301 can be adjusted by rotating the adjusting bolt 406, so that the distance between the air blowing rod 305 and the material supporting plate 301 is slightly greater than the thickness of the first template buckle 7, and at the same time, the distance between the two limit plates 404 is slightly greater than the diameter of the first template buckle 7. Such a setting can limit the material buckle 9 on the stripper plate through the cooperation of the limit plates 404 and the air blowing rod 305, preventing the material buckle 9 from slipping off the stripper plate due to lack of limitation when being blown by the air blowing rod 305.

[0055] In order to enable the air blowing rod 305 to blow the material buckle 9 to move along the stripper plate, a main air duct 306 and a plurality of air outlet holes 307 are provided on the air blowing rod 305. The air outlet holes 307 are inclined along the moving direction of the material buckle 9, and the air flow will blow the material buckle 9 to move after flowing out from the air outlet holes 307.

[0056] Then, move the clamping block 410 along the cross rail 408 under the mutual cooperation of the cross rail 408 and the transverse slider 409. Since the inclined push block 411 contacts the bearing 418 fixed on the fixed block 417, the sliding friction between the fixed block 417 and the inclined push block 411 can be converted into rolling friction through the bearing 418, reducing the friction of the mutual cooperation and extending the service life of the equipment. Therefore, when the clamping block 410 moves, it will push the limit block 416 to move under the cooperation of the inclined push block 411 and the bearing 418 on the fixed block 417. When the limit block 416 moves, the limit rail 413 and the limit slider 414 will slide relatively, and at the same time, the tension spring 415 will be stretched; then, place the second template buckle 8 on the second support platform 407. After the second template buckle 8 is placed on the second support platform 407, release the clamping block 410. After the clamping block 410 is released, the tension spring 415 will shorten. When the tension spring 415 shortens, it will pull the limit block 416 to move reversely along the limit rail 413. The reversely moving limit block 416 will push the clamping block 410 to move reversely through the contact between the fixed block 417 and the inclined push block 411, as Figure 1 and Figure 6 shown. Until the clamping block 410 moves to contact the edge of the second template buckle 8 on the second support platform 407, the clamping block 410 will stop moving, and the second template buckle 8 will be clamped and fixed on the second support platform 407; at the same time, the stop rod 419 will be asFigure 7 As shown, the material buckle 9 is blocked, so that the length of the material buckle 9 extending from the output end of the material supporting plate 301 can be half of the diameter of the material buckle 9.

[0057] It should be noted that, in order to ensure that the moving distance of the limiting block 416 that can be pushed by the cooperation of the inclined pushing block 411 and the fixed block 417 is half of the moving distance of the clamping block 410, the orthographic projection of the clamping block 410 on the horizontal plane is as Figure 10 shown, where D = 2L, and according to trigonometric functions, tan(A) = L / D, then ∠A = arctan1 / 2, approximately 26.565°.

[0058] During operation, the material buckle 9 will move onto the material supporting plate 301 under the action of the external feeding mechanism 3. After the material buckle 9 moves onto the material supporting table, the gas in the main air duct 306 of the air blowing rod 305 will flow out along the air outlet holes 307, blowing the material buckle 9 to move on the stripping plate. During the movement of the material buckle 9, the limiting plate 404 will limit the material buckle 9, and when the material buckle 9 moves along the material supporting plate 301 to contact the blocking rod 419, the material buckle 9 will stop moving.

[0059] At this time, the linear cylinder 608 on the material moving mechanism 6 is in a contracted state. The rotating driving arm 610 connected to the output end of the linear cylinder 608 will drive the rotating shaft 609 to rotate, so that the positioning post on the blanking die 612 installed at the free end of the swing arm 611 is located below the material buckle 9 at the output end of the material supporting plate 301. At this time, the lifting cylinder 604 will shorten, and under the cooperation of the feeding slider 602 and the feeding rail 601, it will drive the lifting frame 603 to move towards the feeding plate 605. After the lifting frame 603 moves, it will drive the swing arm 611 to move upward through the connecting seat 606. If the positioning post on the blanking die 612 is just aligned with the sewing hole on the material buckle 9, the positioning post will be inserted into the positioning hole on the material buckle 9; if the positioning post on the blanking die 612 is not aligned with the sewing hole on the material buckle 9, after the blanking die 612 moves upward, the positioning post will push the material buckle 9 upward, and the material buckle 9 after moving upward will contact the pressing part 312, which can prevent the material buckle 9 from falling.

[0060] At this time, the reset cylinder 509 is in an extended state, and the extended reset cylinder will push the positioning plate 504 to move upward for reset, as Figure 3 and Figure 5 shown. The stabilizing rod 506 installed on the support frame 2 passes through the positioning plate 504. At this time, the second spring 505 on the stabilizing rod 506 above the positioning plate 504 is in a state of compressed energy storage under the action of the stopper 510.

[0061] Then, the positioning plate 504 will start to move downward, and the reset cylinder 509 on the positioning mechanism 5 will start to shorten. When the reset cylinder 509 shortens, the second spring 505 will extend to release energy, pushing the positioning plate 504 downward. Through the cross slide 503, the positioning plate 504 is driven to approach the stripping plate under the cooperation of the positioning rail 501 and the positioning slider 502. When the positioning plate 504 approaches the stock plate 301, it will drive the positioning motor 507 to approach the stock plate 301. After the positioning motor 507 moves, the rotating rubber particle 508 at the output end will contact the material buckle 9 above the feeding die 612. Then, the positioning motor 507 will drive the rotating rubber particle 508 to rotate. Due to the frictional force between the material buckle 9 and the rotating rubber particle 508, the material buckle 9 will also rotate. The sewing hole on the material buckle 9 will align with the positioning post on the feeding die 612 during the rotation. Since the rotating rubber particle 508 is made of rubber and thus has elasticity, when the sewing hole on the material buckle 9 rotates to align with the positioning post on the feeding die 612, it will push the material buckle 9 downward, inserting the positioning post on the feeding die 612 into the sewing hole on the material buckle 9 to limit the material buckle 9.

[0062] After the positioning motor 507 finishes rotating, the reset cylinder 509 will drive the positioning motor 507 to move upward through the positioning plate 504. At this time, the second spring 505 will be compressed again to store energy. Meanwhile, the output end of the limit cylinder 421 on the limit block 416 will drive the stop lever 419 to retract through the connecting rod 420. After the stop lever 419 retracts, the linear cylinder 608 will start to extend, driving the rotating shaft 609 to rotate through the rotating drive arm 610, causing the rotating shaft 609 to drive the swing arm 611 to rotate. The feeding die 612 installed on the swing arm 611 drives the material buckle 9 to move. Synchronously, the lifting cylinder 604 will extend, pushing the lifting frame 603 downward and driving the swing arm 611 to move downward together through the connecting seat 606, causing the swing arm 611 to move downward while making a rotational motion.

[0063] Finally, the feeding die 612 will drive the material buckle 9 to be sent into the button input end of the button sewing machine under the drive of the swing arm 611. When the material buckle 9 on the feeding die 612 is taken away by the button sewing machine, the linear cylinder 608 will shorten, driving the rotating shaft 609 to rotate in the reverse direction through the rotating drive arm 610. At the same time, the lifting cylinder 604 will also shorten, driving the connecting seat 606 to move upward through the lifting frame 603, causing the swing arm 611 to move upward while rotating. Finally, the swing arm 611 drives the feeding die 612 to move to the output end of the stock plate 301 again. After the feeding die 612 moves to the output end of the stock plate 301, the limit cylinder 421 will extend, driving the stop lever 419 to extend through the connecting rod 420, so that the stop lever 419 blocks the material buckle 9 again.

[0064] In this embodiment, multiple sets of slide rails and sliders are adopted. Such a setting can not only reduce the friction between various sliding components and extend the service life of the equipment, but also improve the bearing capacity and precision of the equipment. At the same time, the reset cylinder 509 and the support frame 2, as well as the lifting cylinder 604 and the lifting frame 603, are all connected by the floating joint 10.

[0065] The above has described in detail an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as defining the scope of implementation of the present invention. Any equivalent changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A limit device for an automatic button feeding machine, characterized in that, It includes a second support table (407) and a mounting block (412) arranged on a support frame (2). A clamping block (410) is slidably arranged on one side of the second support table (407). An inclined push block (411) is arranged on the clamping block (410). A limiting block (416) is slidably arranged on the mounting block (412). A tension spring (415) is arranged between the limiting block (416) and the support frame (2). A fixing block (417) is arranged on the limiting block (416). The fixing block (417) is in sliding contact with the inclined push block (411). A blocking rod (419) is slidably arranged on the fixing block (417).

2. The limit device for an automatic button feeding machine according to claim 1, characterized in that: The moving direction of the clamping block (410) is perpendicular to the moving direction of the limiting block (416). And under the cooperation of the inclined push block (411) and the fixing block (417), the moving distance of the clamping block (410) is twice the moving distance of the limiting block (416).

3. The limit device for an automatic button feeding machine according to claim 1, characterized in that: A horizontal rail (408) is fixedly arranged on the support frame (2). A horizontal slider (409) is slidably arranged on the horizontal rail (408). The clamping block (410) is fixedly connected to the horizontal slider (409).

4. The limit device for an automatic button feeding machine according to claim 1, characterized in that: A limiting slider (414) is fixedly arranged on the mounting block (412). A limiting rail (413) is slidably arranged on the limiting slider (414). The limiting block (416) is fixedly arranged on the limiting rail (413).

5. The limit device for an automatic button feeding machine according to claim 1, characterized in that: A limiting air cylinder (421) is fixedly arranged on the limiting block (416). A connecting rod (420) is fixedly arranged at the output end of the limiting air cylinder (421). The connecting rod (420) is fixedly connected to the blocking rod (419).

6. The limit device for an automatic button feeding machine according to claim 1, characterized in that: A bearing (418) is also rotatably arranged on the fixing block (417). The outer ring of the bearing (418) is in contact with the inclined push block (411) on the clamping block (410).

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