A braided resistor cutting mechanism

Abstract

The present invention provides a braided resistor cutting mechanism, wherein a feeding module is used to convey the braided resistor into the cutting module, the feeding module comprises a support body, a first driving member and a push arm, the support body supports the braided resistor, the push arm is hinged on the first driving member, the first driving member can drive the push arm to translate and push the braided resistor into the cutting module; the cutting module is used to cut off the resistance wire from the braided resistor, the cutting module comprises a support seat assembly, a movable knife assembly and a second driving member, the support seat assembly supports the braided resistor, the movable knife assembly is guided by a guide column and moves up and down relative to the support seat assembly, the second driving member is drivingly connected to the movable knife assembly, the second driving member can drive the movable knife assembly downward to cut off the resistance wire of the braided resistor. The present invention is universal for feeding braids of various widths, and can also be universal for cutting out resistor products of various specifications and lengths, and can solve the problems of a large number of feeding drive parts, a bloated structure, and a long feeding time and low efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic parts processing, and in particular relates to a braided resistor cutting mechanism. Background Art

[0002] Resistors are a commonly used electronic component, and are usually long and thin. In industrial production, resistors are usually made into braided resistors for easy batch processing. Figure 1 As shown, the braided resistor 10 includes a plurality of parallel arrayed resistance wires 11 and two braids 12 fixedly connecting the ends of the plurality of resistance wires 11, which are usually continuous long strips or winding structures. When taking the resistor, the resistance wire 11 needs to be cut from the braid 12 at a specific length.

[0003] Since braided materials have various width specifications, the existing braided resistor cutting mechanism cannot be used for braided materials of various widths; and for different terminal products, the cutting length requirements for the resistor wire are also different, and the existing braided resistor cutting mechanism cannot cut resistors with different length requirements.

[0004] In addition, the existing tape resistor feeding drive has many parts and a bloated structure, that is, the tape resistor needs to be pushed forward first, then the push arm needs to be driven to separate from the tape resistor, and then move back to achieve reciprocating feeding. The above decomposition action also increases the feeding time. The cutting mechanism is difficult to complete the cutting work efficiently, and the cut resistor wires are disordered and mixed, which is difficult to sort out, reducing the transplanting efficiency of the subsequent process and slowing down the work rhythm of the entire production line. Summary of the invention

[0005] The purpose of the present invention is to provide a braided resistor cutting mechanism to solve the problems of a large number of feeding drive parts, a bloated structure, a long feeding time, low efficiency and poor versatility.

[0006] The present invention provides the following technical solutions:

[0007] A braided resistor cutting mechanism, comprising:

[0008] A feeding module is used to transport the tape resistor to the cutting module. The feeding module includes a support body, a first driving member and a push arm. The support body supports the tape resistor. The push arm is hinged to the output end of the first driving member. The first driving member can drive the push arm to translate and push the tape resistor on the support body into the cutting module.

[0009] A cutting module is used to cut off the resistance wire from the braided resistor. The cutting module includes a support seat assembly, a movable knife assembly and a second driving member. The support seat assembly is installed on a base, and the support seat assembly supports the braided resistor. The movable knife assembly is guided by a guide column on the base and moves up and down relative to the support seat assembly. The second driving member is drivingly connected to the movable knife assembly, and the second driving member can drive the movable knife assembly downward to cut the resistance wire of the braided resistor.

[0010] Preferably, the braided resistor includes a plurality of resistance wires in a parallel array and two braids fixedly connecting the ends of the plurality of resistance wires; the support seat assembly includes a pair of positioning plates fixed on the base, the positioning plates are provided with positioning grooves extending horizontally from the cutting station of the cutting module to the unloading side, the positioning groove openings on the two positioning plates are arranged facing each other, the braid is inserted into the positioning groove, and the positioning groove guides the movement of the braid.

[0011] Preferably, the support seat assembly also includes a lower knife holder supporting the resistance wire, and the movable knife assembly includes a pressure plate, a pressure block and a cutter installed at the bottom of the pressure plate, and the cutter and the lower knife holder are staggered front and back. When the cutter is driven downward by the second driving member to cut off the resistance wire, the pressure block cooperates with the lower knife holder to clamp the resistance wire separated from the braid.

[0012] Preferably, a push block is installed on the output rod of the first driving member, and a support shaft is installed in the push block along a direction parallel to the resistance wire. Both ends of the support shaft are hinged to the push arms respectively, and the push arms are located in the gap between the cutter and the positioning plate. A row of tooth-shaped protrusions are provided on the bottom of the push arms, and the intervals between the protrusions match the intervals between two adjacent resistance wires. The push arms are inserted between the resistance wires through the protrusions to push the braided resistor to the cutting station.

[0013] Preferably, the end of the positioning plate is close to the support body, and the support surface of the positioning groove is at the same height as the support surface of the support body; the length of the pressing block is greater than the length of the cutter, and the pressing block can press the resistance wire that is not cut by the cutter.

[0014] Furthermore, a third driving member is horizontally installed on the base and can be translated from the cutting station of the cutting module to the unloading side, a fourth driving member that can be raised and lowered is installed on the output end of the third driving member, and a receiving table is installed on the output end of the fourth driving member. The upper surface array of the receiving table has at least two rows of first grooves that match the spacing of the resistance wire, and the third driving member can move the receiving table to the cutting station and make the first grooves correspond to the position of the resistance wire.

[0015] Furthermore, a buffer block is installed at the bottom of the pressure plate, and the bottom array of the buffer block has at least two rows of second grooves matching the spacing of the resistance wire. When the resistance wire is cut, the second grooves and the first grooves clamp the resistance wire together.

[0016] Furthermore, the pressure plate is provided with an adjustment hole which passes through the pressure plate in the vertical direction, and a row of wavy first teeth extending in the vertical direction are distributed on the side wall of the adjustment hole parallel to the resistance wire. An adjustment block is installed in the adjustment hole, and the adjustment block is provided with a row of second teeth meshing with the first teeth; the adjustment block is fixedly connected to a connecting plate, and the cutter and the pressure block are both fixed to the bottom of the connecting plate, and the adjustment block changes the cutting position of the cutter through the matching position of the second teeth and the first teeth.

[0017] Preferably, a mounting hole parallel to the adjusting hole is provided on the side wall of the pressure plate, the mounting hole is vertically connected to the adjusting hole, and the adjusting block is fixed to the mounting hole by bolts.

[0018] Furthermore, a top plate is fixedly installed on the top of the guide column, and the second driving member is installed on the top plate. A sliding joint is screwed on the output end of the second driving member, and a circular boss is provided at the bottom of the sliding joint. The boss is embedded in a T-slot of a slider, and the boss can translate along the T-slot; a sliding seat with an inclined guide rail is fixedly installed on the pressure plate, and sliding grooves cooperating with the guide rails are respectively provided on the opposite side walls of the slider, and the distance between the pressure block and the lower tool holder in the vertical direction can be adjusted by moving the slider along the guide rail.

[0019] The beneficial effects of the present invention are:

[0020] The present invention feeds the braided resistor into the cutting module through the feeding module, and realizes stable and continuous feeding through the cooperation of the first driving member and the push arm, thereby overcoming the problem that the braided resistor is easily wound and messy during the feeding process. The support seat assembly of the cutting module supports the braided resistor sent by the feeding module, and the movable knife assembly is driven by the second driving member to punch down the resistance wire of the braided resistor, thereby cutting the resistance wire. Cutters of different lengths can be selected to cut multiple resistance wires at the same time, and the cutting efficiency is high.

[0021] The push arm of the present invention is provided with a row of tooth-shaped protrusions at the bottom, and the push arm pushes the braided resistor to the cutting station by inserting the protrusions between the resistance wires; when the cutter is driven downward by the second driving member to cut the resistance wire, the pressure block cooperates with the lower knife holder to clamp the resistance wire separated from the braid and at least one resistance wire that is not separated from the braid, and at this time the first driving member retreats to reset the push arm, and since part of the resistance wire is still pressed by the pressure block, and the two braids are positioned by the positioning grooves, the push arm automatically shakes upward around its hinge point when retreating, so that its protrusions are disengaged from the resistance wire and reset smoothly. The present invention utilizes the change in friction between the push arm and the resistance wire during pushing and resetting, and only one driving member is used to achieve stable and continuous feeding of the braided resistor, with a small number of parts and a compact structure; there is no need to use a driving mechanism to lift the push arm and then reset it, with less decomposition actions and high feeding efficiency.

[0022] The present invention provides a vertical adjustment hole on the pressure plate, a row of vertical first teeth are distributed on the side wall of the adjustment hole parallel to the resistance wire, an adjustment block is installed in the adjustment hole, and a row of second teeth meshing with the first teeth are provided on the adjustment block; the adjustment block is fixedly connected to a connecting plate, the cutter and the pressure block are both fixed to the bottom of the connecting plate, and the adjustment block changes the cutting position of the cutter (i.e., changes the spacing of the cutter) through the matching position of the second teeth and the first teeth, so that the cutter can achieve fixed-length cutting of resistance wires with different length requirements, and has good versatility.

[0023] The present invention installs a third driving member on the base, and a fourth driving member of a lifting receiving platform is installed on the output end of the third driving member. The upper surface array of the receiving platform has at least two rows of first grooves matching the spacing of the resistance wire. Before cutting the resistance wire, the third driving member moves the receiving platform to the cutting station and makes the first grooves correspond to the positions of the resistance wires to be cut one by one. The fourth driving member raises the receiving platform so that the receiving platform can just support the target resistance wire. After the target resistance wire is cut, the third driving member translates the receiving platform to the lower material side until the fourth driving member lowers the receiving platform again after reaching the target position, and the resistance wire is taken away by the transplanting mechanism. The present invention realizes automatic receiving and unloading of the cut resistance wire, transports multiple resistance wires at a time, and the arrangement positions of the resistance wires are neat and orderly, which is convenient for accurately transferring the resistance wires to the next process in batches, and helps the continuous and efficient operation of the entire production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the structure of a braided resistor involved in the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the present invention viewed from the left side;

[0028] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure of part A;

[0029] Figure 5 This is a schematic diagram of the structure of the present invention viewed from the right front side;

[0030] Figure 6 yes Figure 5 A schematic diagram of the enlarged structure of part B;

[0031] Figure 7 is a schematic diagram of the structure of the present invention viewed from the left front side, in which the positioning plate of the support seat assembly is hidden;

[0032] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of part C.

[0033] The markings in the figure are:

[0034] 10. Braided resistor; 11. Resistance wire; 12. Braided tape;

[0035] 20. Loading module; 21. Support body; 22. First driving member; 23. Push arm; 231. Protrusion; 24. Push block; 25. Support shaft;

[0036] 30. cutting module; 31. second driving member; 321. positioning plate; 322. positioning groove; 323. lower knife holder; 331. pressing plate; 3311. adjusting hole; 3312. first tooth; 3313. mounting hole; 332. pressing block; 333. cutting knife; 334. pressing surface; 335. occlusal part; 336. third groove; 337. adjusting block; 3371. second tooth; 338. connecting plate; 34. buffer block; 341. second groove; 35. base; 36. guide column; 37. top plate;

[0037] 40. Unloading module; 41. Third driving member; 42. Fourth driving member; 43. Receiving platform; 431. First groove; 44. Linear rail; 45. Slide; 46. Photoelectric sensor;

[0038] 50. Adjustment module; 51. Sliding seat; 511. Guide rail; 52. Sliding block; 521. T-slot; 53. Sliding joint; 531. Boss; 54. Vertical plate. DETAILED DESCRIPTION

[0039] like Figure 2 As shown, this embodiment provides a braided resistor cutting mechanism, including a loading module 20 , a cutting module 30 , a unloading module 40 and an adjusting module 50 .

[0040] like Figure 7 and Figure 8 As shown, the loading module 20 is used to transport the braided resistor 10 to the cutting module 30. The loading module 20 includes a support body 21, a first driving member 22 and a push arm 23. The support body 21 supports the braided resistor 10 and has an ascending arc-shaped guide surface to smoothly guide the braided resistor 10 to one side of the cutting module 30. The first driving member 22 is a cylinder. The first driving member 22 is installed on the support seat assembly of the cutting module 30, and a gap is left between the first driving member 22 and the guide surface for the braided resistor to pass horizontally; a push block 24 is installed on the output rod of the first driving member 22, and a support shaft 25 is installed in the push block 24 in a direction parallel to the resistance wire 11. The two ends of the support shaft 25 are respectively hinged to the push arm 23. The first driving member 22 can drive the push arm 23 to translate and push the braided resistor 10 into the cutting module 30.

[0041] The cutting module 30 is used to cut the resistance wire 11 from the braided resistor 10. The cutting module 30 is provided with a cutting station and a feeding side and a unloading side respectively located upstream and downstream of the cutting station. Figure 3 and Figure 5 As shown, the cutting module 30 includes a support base assembly, a movable knife assembly and a second driving member 31. The support base assembly is mounted on a base 35 and is used to support the braided resistor 10. The movable knife assembly is guided by a guide post 36 on the base 35 and moves up and down relative to the support base assembly. The second driving member 31 is a cylinder or a hydraulic cylinder. The second driving member 31 is drivingly connected to the movable knife assembly. The second driving member 31 can drive the movable knife assembly downward to cut the resistance wire 11 of the braided resistor.

[0042] Among them, Figures 3 to 5 As shown, the support seat assembly includes a pair of positioning plates 321 arranged opposite to each other and fixed on the base. The positioning plates 321 are provided with positioning grooves 322. The positioning grooves 322 extend horizontally from the feeding side of the cutting module through the cutting station to the unloading side. The positioning grooves 322 on the two positioning plates 321 are opened opposite to each other. The two braids 12 are respectively inserted into the two positioning grooves 322. The positioning grooves 322 guide and position the movement of the braids 12, so that the braids pass through the cutting module smoothly and orderly, ensuring the continuous cutting operation. The end of the positioning plate 321 is close to the support body 21 of the feeding module, and the support surface of the positioning groove 322 is at the same height as the support surface of the support body 21, so that the braids can smoothly enter the positioning groove 322.

[0043] The support seat assembly also includes a lower knife holder 323 for supporting the resistance wire. The movable knife assembly includes a pressing plate 331, a pressing block 332 and a cutting knife 333 installed at the bottom of the pressing plate 331, and the pressing plate 331 can move up and down along the guide column 36. Figure 4 and Figure 6As shown, the cutter 333 and the lower knife holder 323 are staggered in front and back, so when the cutter cuts, the height of the blade of the cutter 333 can be lower than the bottom of the pressing block 332, and the resistance wire can be effectively cut. When the cutter 333 is driven downward by the second driving member 31 to cut the resistance wire, the pressing block 332 cooperates with the lower knife holder 323 to clamp a number of resistance wires (i.e., target resistance wires) that are separated from the braid, to prevent these resistance wires from shaking, and to ensure orderly material removal. Among them, the length of the pressing block 332 is greater than the length of the cutter 333, so the pressing block 332 can press the resistance wires adjacent to the target resistance wire that have not been cut by the cutter, to ensure that the position of the entire braid resistance does not shift. The pressing block 332 has a pressing surface 334 that fits the top surface of the lower tool holder 323 and a bite portion 335 that extends downward in a step-like manner from the pressing surface 334. The bite portion 335 is close to the side wall of the lower tool holder 323, and a row of third grooves 336 matching the spacing of the resistance wire is provided at the bottom of the bite portion 335. The third grooves 336 can reliably limit the resistance wire while the pressing surface 334 presses the resistance wire to prevent it from displacement or shaking.

[0044] like Figures 6 to 8 As shown, the push arm 23 of the loading module is located in the gap between the cutter 333 and the positioning plate 321. A row of tooth-shaped protrusions 231 are provided at the bottom of the push arm 23. The interval between adjacent protrusions 231 matches the interval between two adjacent resistance wires. The push arm 23 pushes the braided resistor 10 to the cutting station by inserting the protrusions 231 between the resistance wires. When the first cutting cycle is completed, the first driving member 22 retreats and resets the push arm 23. Since part of the resistance wire is still pressed by the pressing block 332, and the two braids 12 are positioned by the positioning groove 322 and cannot move up and down, the push arm 23 automatically shakes upward around its hinge point when retreating, so that the protrusion 231 of the push arm is disengaged from the resistance wire, and the braided resistor will not be pulled back, and then the next material pushing action is prepared.

[0045] like Figure 5 and Figure 6As shown, in order to flexibly adjust the spacing between a pair of cutters 333 so that they can cut resistance wires of different lengths, an adjustment hole 3311 is provided on the pressing plate 331, which passes through the pressing plate 331 in the vertical direction. The adjustment hole 3311 is a strip hole parallel to the resistance wire, and a row of first wavy teeth 3312 extending in the vertical direction are distributed on the side wall of the adjustment hole 3311 parallel to the resistance wire. An adjustment block 337 is installed in the adjustment hole 3311, and the front and rear positions of the adjustment block 337 in the adjustment hole 3311 are adjustable. The adjustment block 337 is provided with a row of second teeth 3371 meshing with the first teeth 3312; a mounting hole 3313 is provided on the side wall of the pressing plate 331, which is parallel to the adjustment hole 3311, and the mounting hole 3313 is vertically connected to the adjustment hole 3311, and the adjustment block 337 is fixed to the mounting hole 3313 by bolts. The lower side of the adjustment block 337 is fixed with a horizontal connecting plate 338 by bolts, and the cutter 333 and the pressing block 332 are fixedly installed at the bottom of the connecting plate 338. The adjustment block 337 changes the installation position of the cutter 333 through the matching position of the second tooth 3371 and the first tooth 3312, so that the specifications of the resistance wire cut by it are diversified. Four adjustment blocks 337 and two connecting plates 338 are installed on the pressing plate 331, wherein each connecting plate 338 connects two adjustment blocks 337 that are symmetrical on the left and right. When the fixed-length cutting specifications of the resistance wire need to be changed, the spacing between the two cutters 333 needs to be adjusted, which is achieved by the following method: unscrewing the bolts in the mounting hole 3313, pulling the adjustment block 337 out from the bottom of the adjustment hole 3311, and then aligning a plurality of second teeth 3371 with the first teeth 3312 corresponding to the target cutting position, pushing the adjustment block 337 upward along the adjustment hole 3311, and then fixing the adjustment block 337 to the mounting hole 3313 of the pressing plate again with bolts.

[0046] The mechanism also includes an adjustment module 50 for fine-tuning the height of the pressing block, which is achieved through the following structure: Figure 3 and Figure 5As shown, a slide seat 51 with an inclined guide rail 511 is fixedly installed on the top surface of the pressure plate 331, and the guide rail 511 is higher on the left and lower on the right; a slider 52 is installed on the slider 51, and a slide groove matching the guide rail 511 is respectively provided on the opposite side walls of the slider 52, and the slider 52 can move in the front-back direction and the up-down direction along the inclined guide rail 511 at the same time, and a T-shaped slot 521 extending horizontally along the left-right direction is provided on the top of the slider 52. The top plate 37 is fixedly installed on the top of the guide column 36, and the second driving member 31 is installed on the top plate 37. The end of the piston rod of the second driving member 31 is screwed with a sliding joint 53, and the height of the sliding joint is changed by changing the screw connection depth between the sliding joint 53 and the piston rod of the second driving member. A circular boss 531 is provided at the bottom of the sliding joint 53, and the boss 531 is embedded in the T-shaped slot 521 of the slider, and the boss 531 can translate along the T-shaped slot 521. When the height of the cutter needs to be fine-tuned, the height is changed by adjusting the threaded depth of the sliding joint 53 on the piston rod of the second driving member. At this time, the slider 52 below it automatically moves obliquely along the guide rail 511 of the slide seat under the support of the boss 521. The horizontal displacement caused by the oblique movement of the slider 52 is compensated by the translation distance of the boss 531 relative to the T-slot 521. Therefore, by moving the slider 52 along the inclined guide rail, the vertical distance between the pressure plate 331 and the top plate 37 can be fine-tuned, that is, the height of the pressure block 332 can be fine-tuned so that it can compress resistance wires of different diameters. In order to keep the adjusted slider 52 stable, two vertical plates 54 are installed on the pressure plate 331. The installation height of the vertical plates 54 on the pressure plate 331 is adjustable. The two vertical plates 54 are respectively located on the left and right sides of the slide 51. A horizontal screw is installed through the slider 52. The two ends of the screw are respectively screwed and fixed to the two vertical plates 54. The slider 52 is restricted on the slide 51 by the screw and the vertical plates to prevent it from sliding freely along the guide rail 521.

[0047] like Figure 5 and Figure 7 As shown, the unloading module 40 includes a third driving member 41, a fourth driving member 42, a receiving platform 43 and a photoelectric sensor 46. The third driving member 41 is a pen-shaped cylinder, and the third driving member 41 is horizontally mounted on the base 35. The base 35 is also equipped with a linear rail 44 extending from the loading side to the unloading side. The linear rail 44 is equipped with a slide 45, and the slide 45 is connected to the piston rod of the third driving member 41. The third driving member 41 can translate the slide 45 from the cutting station to the unloading side. The fourth driving member 42 that can lift the receiving platform 43 is installed on the slide 45. The fourth driving member 42 is a cylinder. The horizontal receiving platform 43 is installed on the output end of the fourth driving member 42. The upper surface array of the receiving platform 43 has at least two rows of first grooves 431 that match the spacing of the resistance wire. The number of rows of the first grooves 431 is not less than the number of the resistance wires to be cut, and the first grooves 431 can support the cut resistance wires. The third driving member 41 can move the receiving platform 43 to the cutting position and make the first groove 431 correspond to the position of the resistance wire.

[0048] Since the lower tool holder 323 has a certain width, the parts where the two ends of the resistance wire are pressed against the lower tool holder 323 also have a certain length. At this time, if the receiving platform 43 is lowered directly, the two ends of the cut resistance wire will be blocked by the lower tool holder 323 and cannot be smoothly dropped onto the receiving platform 43. Therefore, the third driving member 41 first moves the receiving platform 43 to the unloading side, and then the fourth driving member 42 lowers the receiving platform 43, so that the resistance wire falls smoothly onto the receiving platform 43.

[0049] In order to position the cut resistance wire more stably, a buffer block 34 is installed near the center of the bottom of the pressing plate 331. The bottom array of the buffer block 34 has at least two rows of second grooves 341 that match the spacing of the resistance wire. The second grooves 341 have the same depth as the third grooves 336 of the pressing block. When the resistance wire is cut, the second grooves 341 and the first grooves 431 clamp the resistance wire 11 from the upper and lower sides of the resistance wire respectively to prevent the resistance wire 11 from shaking or displacement, so that the next transplanting process can be carried out accurately and orderly.

[0050] The photoelectric sensor 46 is installed on the right side of the base 35, and its detection head faces the resistance wire on the receiving platform 43. When the third driving member 41 moves the receiving platform 43 to the unloading side, the photoelectric sensor 46 detects the resistance wire on the receiving platform 43, determines that there is material on the receiving platform 43, and sends a detection signal to the controller to facilitate the subsequent control of the transplanting operation of the resistance wire.

[0051] The working process of this cutting mechanism is:

[0052] The distance between the two cutters is changed by adjusting the insertion position of the adjustment block in the adjustment hole, so that the distance is adapted to the required resistance wire length specification, ensuring the versatility of fixed-length cutting; the initial position of the material receiving table 43 is located directly below the cutting station of the cutting module;

[0053] The protrusion 231 of the push arm 23 of the feeding module is inserted into the gap between the resistance wires, and the first driving member 22 drives the push arm 23 to move rightward, so as to deliver the target resistance wire of the braided resistor 10 to the bottom of the cutting station of the cutting module;

[0054] Then, the second driving member 31 of the cutting module drives the pressing plate 331 to move downward, so that the cutter 333 cuts off the target resistance wire and then continues to move downward for a short distance until the pressing surface of the pressing block 332 abuts against the lower knife holder 323 to press the resistance wire; at this time, the front and rear pressing blocks 332 respectively press the two ends of the resistance wire, and the second groove 341 of the buffer block 34 and the first groove 431 of the receiving platform 43 jointly clamp the middle part of the resistance wire;

[0055] The first driving member 22 resets the push arm 23 to the left. Since the braided resistor is pressed by the pressing block 332, the push arm 23 automatically shakes upwards and avoids the resistor wire when it is reset.

[0056] The cut resistance wire is received by the receiving platform 43, and the second driving member 31 resets the pressing plate 331 upward, thereby resetting the cutter 333 and the pressing block 332, and the pressing block 332 and the buffer block 34 release the cut resistance wire;

[0057] The third driving member 41 drives the receiving platform 43 to move to the unloading station on the right side, and the fourth driving member 42 lowers the receiving platform 43. The photoelectric sensor 46 detects the resistance wire on the receiving platform 43, and the robot is ready to transfer the resistance wire in batches to the next process.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A braided resistor cutting mechanism, characterized in that: The braided resistor comprises a plurality of resistance wires in a parallel array and two braids fixedly connecting the ends of the plurality of resistance wires; The tape resistor cutting mechanism includes: A feeding module is used to transport the braided resistor to the cutting module. The feeding module includes a support body, a first driving member and a push arm. The support body supports the braided resistor. The push arm is hinged to the output end of the first driving member. The first driving member can drive the push arm to translate and push the braided resistor on the support body into the cutting module. A row of tooth-shaped protrusions is provided at the bottom of the push arm. The intervals between adjacent protrusions match the intervals between two adjacent resistance wires. The push arm pushes the braided resistor to the cutting station by inserting the protrusions between the resistance wires. A cutting module, used for cutting the resistance wire from the braided resistor, the cutting module comprises a support seat assembly, a movable knife assembly and a second driving member, the support seat assembly is mounted on a base, the support seat assembly also supports the braided resistor, the movable knife assembly is guided by a guide post on the base and moves up and down relative to the support seat assembly, the second driving member is drivingly connected to the movable knife assembly, and the second driving member can drive the movable knife assembly downward to cut the resistance wire of the braided resistor; The support seat assembly includes a pair of positioning plates fixed on the base, the positioning plates are provided with positioning grooves extending horizontally from the cutting station of the cutting module to the unloading side, the positioning grooves on the two positioning plates are arranged facing each other, the braid is inserted into the positioning grooves, and the positioning grooves guide the movement of the braid; The support seat assembly also includes a lower knife frame supporting the resistance wire, the movable knife assembly includes a pressing plate, a pressing block and a cutter installed at the bottom of the pressing plate, the cutter and the lower knife frame are staggered front and back, when the cutter is driven downward by the second driving member to cut the resistance wire, the pressing block cooperates with the lower knife frame to clamp the resistance wire; the first driving member retreats to reset the push arm; The end of the positioning plate is close to the support body, and the support surface of the positioning groove is at the same height as the support surface of the support body; the length of the pressing block is greater than the length of the cutter, and the pressing block can press the resistance wire that is not cut by the cutter; It also includes a material unloading module, the material unloading module includes a third driving member, a fourth driving member and a material receiving table, the third driving member that can reciprocate the material receiving table between the cutting station of the cutting module and the material unloading side is installed on the base, the fourth driving member that can lift the material receiving table is installed on the output end of the third driving member, and the material receiving table is installed on the output end of the fourth driving member; the upper surface array of the material receiving table has at least two rows of first grooves that match the spacing of the resistance wire, and the third driving member can move the material receiving table to the cutting station and make the first grooves correspond to the positions of the resistance wires one by one; The pressure plate is provided with an adjustment hole which passes through the pressure plate in the vertical direction, and a row of wavy first teeth extending in the vertical direction are distributed on the side wall of the adjustment hole parallel to the resistance wire, and an adjustment block is installed in the adjustment hole, and the adjustment block is provided with a row of second teeth meshing with the first teeth; a connecting plate is fixedly installed on the adjustment block, and the cutter and the pressure block are fixed to the bottom of the connecting plate, and the adjustment block changes the cutting position of the cutter through the matching position of the second teeth and the first teeth.

2. The braided resistor cutting mechanism according to claim 1, characterized in that: A push block is installed on the output rod of the first driving member, a support shaft is installed in the push block along a direction parallel to the resistance wire, both ends of the support shaft are respectively hinged to the push arms, and the push arms are located in the gap between the cutter and the positioning plate.

3. The braided resistor cutting mechanism according to claim 1, characterized in that: A buffer block is also installed at the bottom of the pressure plate. The bottom array of the buffer block has at least two rows of second grooves matching the spacing of the resistance wire. When the resistance wire is cut, the second grooves and the first grooves clamp the resistance wire together.

4. The braided resistor cutting mechanism according to claim 3, characterized in that: A mounting hole parallel to the adjusting hole is provided on the side wall of the pressing plate, the mounting hole is vertically connected to the adjusting hole, and the adjusting block is fixed on the mounting hole by bolts.

5. The braided resistor cutting mechanism according to claim 1, characterized in that: A top plate is fixedly installed on the top of the guide column, and the second driving member is installed on the top plate. A sliding joint is screwed on the output end of the second driving member, and a circular boss is provided at the bottom of the sliding joint. The boss is embedded in a T-slot of a slider, and the boss can translate along the T-slot; a sliding seat with an inclined guide rail is fixedly installed on the pressure plate, and sliding grooves cooperating with the guide rail are respectively provided on the opposite side walls of the slider, and the distance between the pressure block and the lower tool holder in the vertical direction can be adjusted by moving the slider along the guide rail.

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