A cable sheath blanking die device

Abstract

The present application provides a kind of cable sheath dumbbell test piece blanking device, comprising: first support plate, punch and drive mechanism for driving punch reciprocating, the end face of punch blanking direction is inwardly provided with cavity with blanking opening, and the end face of punch reset direction is connected with punch mounting plate;Cavity is movably connected with top plate, two ejector rods passing through punch mounting plate are symmetrically connected on top plate, and elastic structure for driving top plate away from blanking opening is connected between ejector rod and punch mounting plate;When punch resets, the end of ejector rod is in contact with first support plate, and punch continues to reset and move, and the top plate is moved to blanking opening by ejector rod under force, and test piece is ejected, to achieve the purpose of automatic unloading, simple structure, linkage with blanking action, no secondary operation is needed, high efficiency, low cost, simple operation, high safety technical effect is realized, effectively solve the technical problems of insecurity and high operability and high cost caused by manual unloading or manipulator unloading.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of blanking equipment, in particular to a cable sheath dumbbell test piece blanking device. BACKGROUND

[0002] In the cable manufacturing industry, it is essential to conduct extensive testing on the quality and performance of the cable. In particular, the performance and durability of the insulating material are crucial to the long-term use of the cable. In order to evaluate the performance of the insulating material, it is usually necessary to prepare a dumbbell test piece and conduct a tensile test.

[0003] In the process of conducting an insulation heat extension test on a cable, the sheath of the cable needs to be made into a dumbbell test piece for testing.

[0004] The sheath is usually made of insulating materials such as rubber, which generally has high elasticity and is prone to being stuck in the punch head during punching, affecting production efficiency.

[0005] In the traditional process, manual or mechanical hands are required to eject the test piece, and the addition of the ejection process requires the blanking work to be paused, and the test piece is ejected and then grabbed or blown to achieve test piece discharge. The completion of these processes by manual or mechanical hands not only affects work efficiency, but also increases equipment costs.

[0006] In addition, during blanking, curling is also prone to occur due to the material properties. SUMMARY

[0007] The cable sheath dumbbell test piece blanking device of the present application is used to solve the technical problems related in the background art.

[0008] The technical solution provided by the present application is as follows: a cable sheath dumbbell test piece blanking device, comprising: a first support plate, a punch, and a driving mechanism provided on the first support plate for driving the punch to reciprocate, the end face of the punch in the blanking direction is provided with a cavity having a blanking opening inwardly, and the end face of the punch in the reset direction is connected with a punch mounting plate;

[0009] A top plate is movably connected in the cavity and engages with the cavity, the side of the top plate away from the blanking opening is symmetrically connected with two ejection rods passing through the punch mounting plate, and the ejection rod and the punch mounting plate are connected with an elastic structure for driving the top plate away from the blanking opening;

[0010] When the punch is reset, the end of the ejection rod is in contact with the first support plate, the punch continues to reset and move, the ejection rod is forced to push the top plate to move towards the blanking opening, and the test piece is ejected.

[0011] In some embodiments, the maximum gap size between the top plate and the blanking opening is 2%-4% of the thickness size of the test piece, and the top plate can prevent the test piece from curling when the punch is blanking.

[0012] In some embodiments, two guide rods symmetrically arranged are connected to the die mounting plate, and the guide rods pass through the first support plate.

[0013] In some embodiments, the guide rods are connected to the die mounting plate through the mounting seat.

[0014] In some embodiments, the elastic structure is a tension spring, the end of the ejector rod has a fixing block, the elastic structure is sleeved outside the rod body of the ejector rod, and is between the fixing block and the die mounting plate.

[0015] In some embodiments, the first support plate is provided with a stop rod abutting against the ejector rod.

[0016] In some embodiments, the driving mechanism is a telescopic cylinder, the fixed end of which is connected to the first support plate, and the telescopic end of which is connected to the die mounting plate.

[0017] In some embodiments, a second support plate is arranged in the die blanking direction, and a backing plate is arranged on the second support plate.

[0018] In some embodiments, further comprising: a third support plate, a hopper connected to the third support plate through a hinge, and a connecting rod connected to the hopper and the die mounting plate; the hopper has a discharge port away from the hinge, one side of the connecting rod is rotationally connected to the discharge port side of the hopper, and the other side of the connecting rod is rotationally and slidingly connected to the die mounting plate.

[0019] During the die blanking operation, the hopper is rotated downward around the hinge by gravity, and the discharge port of the hopper is rotated toward the third support plate; during the die resetting process, the hopper is rotated upward around the hinge through the connecting rod, and the discharge port of the hopper is rotated away from the third support plate, and the cable sheath dumbbell test piece ejected by the top plate falls onto the hopper and slides out of the discharge port.

[0020] In some embodiments, one side of the connecting rod is connected to the discharge port side of the hopper through a shaft joint, and the other side of the connecting rod is provided with a sliding through slot, and a limiting shaft passes through the sliding through slot and is connected to the die mounting plate.

[0021] In some embodiments, the rotation stroke angle of the hopper is 40-70°.

[0022] In some embodiments, the third support plate is connected below the first support plate, the third support plate is located on one side of the die, and the hopper moves between the third support plate and the die when the die reciprocates.

[0023] Compared with the prior art, the beneficial effects of the present application are:

[0024] (1) The cable sheath dumbbell test piece blanking device of the present application, by setting the top plate, ejector rod and elastic structure that fit the cavity, is used to reset the punch after blanking, the end of the ejector rod is in contact with the first support plate, the punch continues to reset and move, the top plate is moved by the ejector rod under force, the test piece is ejected, the ejection action is completed, the purpose of automatic unloading is achieved, the structure is simple, it is linked with the blanking action, no secondary operation is needed, high efficiency, low cost, simple operation and high safety are achieved, the technical problems of insecurity and high operability and high cost caused by manual unloading or robot unloading are effectively solved.

[0025] (2) The cable sheath dumbbell test piece blanking device of the present application, by designing the gap between the top plate and the blanking hole to be slightly larger than the thickness of the test piece, is used to prevent the test piece from curling by the top plate pressing against the test piece during blanking, the technical effect of flattening the test piece during blanking is achieved, and the technical problem of curling and deformation of the test piece caused by stress or pressure during blanking is effectively solved.

[0026] (3) The cable sheath dumbbell test piece blanking device of the present application, by the top plate, ejector rod and elastic structure that fit the cavity, and by adjusting the top plate and cavity structure, the gap between the top plate and the blanking hole is slightly larger than the thickness of the test piece, so as to achieve the purpose of multi-action linkage of blanking, flattening and unloading, the technical effect of simple structure and diversified operation is achieved, and the blanking efficiency and the standard degree of the blanked test piece are improved.

[0027] (4) The cable sheath dumbbell test piece blanking device of the present application, by setting a transmission single connecting rod structure between the hopper and the punch mounting plate, the transmission structure is simple, compact and easy to install, the cost of equipment production and maintenance is reduced, the reliability and adaptability of the equipment are improved, the stability of the equipment in receiving and discharging materials is ensured, and the problems of complex mechanical structure, complicated maintenance and low reliability are effectively solved.

[0028] (5) The cable sheath dumbbell test piece blanking device of the present application, a transmission single connecting rod structure is arranged between the hopper and the punch mounting plate, when the punch moves for blanking, the hopper moves away from the punch under the driving of the connecting rod, when the punch moves for resetting, the hopper moves to the punch for receiving materials under the driving of the connecting rod, which is linked with the punch structure and the top plate ejection structure, the purpose of multi-action linkage of blanking, flattening, unloading and discharging is achieved, the blanking speed is improved, manual intervention is reduced, the consistency and precision of the blanked test piece are ensured, and the problems of low efficiency, low safety coefficient and inconsistent test pieces caused by traditional decentralized process and manual intervention are solved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is the overall structure schematic diagram of the punch during blanking in the present application;

[0030] Figure 2It is the front view of the cable sheath dumbbell test piece blanking device of the application;

[0031] Figure 3 It is the sectional view of the die mounting plate, die and top plate when the die is blanked in the application;

[0032] Figure 4 It is the connection structure schematic view of the hopper, connecting rod and die mounting plate in the application;

[0033] Figure 5 It is the overall structure schematic view when the die is reset in the application;

[0034] Figure 6 It is the sectional view of the die mounting plate, die and top plate when the die is reset in the application.

[0035] The reference signs are as follows: 1, first support plate, 2, second support plate, 3, third support plate, 4, die mounting plate, 5, die, 51, blanking opening, 52, cavity, 6, driving mechanism, 61, output shaft, 7, guide rod, 71, mounting seat, 8, top plate, 9, ejecting rod, 91, fixed block, 10, elastic structure, 11, blocking rod, 12, hopper, 13, connecting rod, 14, sliding through slot, 15, hinge, 16, shaft connecting piece, 17, limiting shaft, 18, backing plate. DETAILED DESCRIPTION

[0036] The application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to explain the application and are not intended to limit the application.

[0037] It should be noted that the terms "first", "second" and the like in the description and claims of the application and above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances to describe the embodiments of the application described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0038] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0039] Example 1

[0040] like Figures 1-6 As shown, the present invention is a dumbbell test piece punching device for cable sheaths, comprising: a first support plate 1, a second support plate 2, a third support plate 3, a punching die mounting plate 4, a punching die 5, a driving mechanism 6, a top plate 8, an ejector rod 9, and an elastic structure 10. The first support plate 1, the second support plate 2, and the third support plate 3 are all plate-shaped structures. The first support plate 1 and the second support plate 2 are arranged horizontally, and the third support plate 3 is arranged vertically between the first support plate 1 and the second support plate 2. The third support plate 3 is fixedly connected to the first support plate 1 and the second support plate 2, and the connection method includes, but is not limited to, welding and screw connection. The first support plate 1, the second support plate 2, and the third support plate 3 are used to support other components of the device and form a reciprocating punching space. The drive mechanism 6 is installed on the first support plate 1 and is used to drive the die mounting plate 4 to move up and down between the first support plate 1 and the second support plate 2. The die 5 is connected to the bottom of the die mounting plate 4, and the bottom of the die 5 has a cavity 52 with a punching opening 51 opened inward according to the test piece structure. The punching opening 51 is relatively thin and can be used to punch out the test piece. The cavity 52 contains movable parts. A top plate 8 is placed to fit the internal structure of the cavity 52. ​​Ejector rods 9 are connected to both sides of the top plate 8. The ends of the ejector rods 9 pass through the die mounting plate 4. An elastic structure 10 is provided between the ejector rods 9 and the die mounting plate 4 to pull the top plate 8 away from the blanking opening 51. By setting the top plate 8, ejector rods 9 and elastic structure 10 to fit the cavity 52, after blanking is completed, the die 5 resets, the ends of the ejector rods 9 abut against the first support plate 1, the die 5 continues to reset and move, and the ejector rods 9 are pushed by force to move the top plate 8 toward the blanking opening 51, ejecting the test piece and completing the ejection action, thus achieving the purpose of automatic unloading. The structure is simple, linked with the blanking action, and does not require secondary operation. It achieves the technical effects of high efficiency, low cost, simple operation and high safety, and effectively solves the technical problems of unsafety, high operability and high cost caused by manual unloading or robotic unloading.

[0041] The driving mechanism 6 of the embodiment is a telescopic cylinder, the fixed end of which is connected to the first support plate 1, the telescopic end 61 of which penetrates through the first support plate 1 and is connected to the die mounting plate 4 at the end of the telescopic end 61, for driving the die mounting plate 4 to reciprocate up and down; a connecting hole is formed in the middle of the die mounting plate 4, and the end of the telescopic end 61 is connected to the connecting hole, and the connection mode includes but is not limited to welding, screw connection and the like. The die mounting plate 4 is connected with a guide rod 7 through a mounting seat 71 on both sides, respectively, the top of the guide rod 7 penetrates through the first support plate 1 and moves in the first support plate 1; in an embodiment, the mounting seat 71 is a clamp structure, after the guide rod 7 is inserted into the mounting seat 71, a locking nut is tightened, so that one end of the guide rod 7 is fixed; two movable holes are formed in the first support plate 1, and the other end of the guide rod 7 penetrates through the movable holes; the guide rod 7 is used for guiding the movement of the die mounting plate 4, ensuring the stability of the up and down movement, and improving the consistency and precision of the blanking test piece;

[0042] In the embodiment, the elastic structure 10 is a tension spring, the end of the ejection rod 9 has a fixed block 91, the elastic structure 10 is sleeved outside the rod body of the ejection rod 9, and the elastic structure 10 is between the fixed block 91 and the die mounting plate 4; since the elastic structure 10 is a tension spring, the ejection rod 9 can be lifted upward, so that the top plate 8 is away from the blanking hole 51, sufficient blanking space is provided at the blanking hole 51, and the blanking work of the blanking hole 51 is completed.

[0043] In the embodiment, the first support plate 1 is provided with a stop rod 11 protruding at the bottom and abutting against the ejection rod 9, which further shortens the reset stroke of the die 5 and improves the blanking efficiency; the stop rod 11 is a threaded rod structure and is screwed to the bottom of the first support plate 1.

[0044] In the embodiment, the second support plate 2 is provided with a pad 18, which is generally made of rubber or the like, for preventing damage to the blanking hole 51 during blanking.

[0045] The working principle of the cable sheath dumbbell test piece blanking device of the embodiment is as follows: the material to be blanked is placed on the base plate 18 and below the punch 5; the punch mounting plate 4 and the punch 5 are driven to move downward by the extension end 61 of the driving mechanism 6, the test sample is blanked by the blanking hole 51, and the test sample is clamped in the cavity 52; the punch mounting plate 4 and the punch 5 are driven to move upward by the extension end 61 of the driving mechanism 6 to reset, when the top of the ejector rod 9 is in contact with the bottom of the blocking rod 11, the punch mounting plate 4 and the punch 5 are continuously driven to move upward by the extension end 61 to reset, the ejector rod 9 is pressed to extrude the elastic structure 10, and the top plate 8 is moved to the blanking hole 51 to eject the test piece. By setting the top plate 8, the ejector rod 9 and the elastic structure 10 which fit the cavity 52, the test piece is ejected after blanking, the ejection action is completed, the purpose of automatic unloading is achieved, the structure is simple, the blanking action is linked, secondary operation is not needed, the technical effects of high efficiency, low cost, simple operation and high safety are achieved, and the technical problems of insecurity and high operability and high cost caused by manual unloading or mechanical hand unloading are effectively solved.

[0046] Embodiment 2

[0047] The embodiment 2 is formed on the basis of the embodiment 1, as shown in Figures 1-6 When the elastic structure 10 pulls the top plate 8 away from the blanking hole 51, the maximum gap between the top plate 8 and the blanking hole 51 is obtained, at this time, the maximum gap size is 2%-4% of the thickness size of the test piece, the thickness of the test piece of the embodiment is 0.5-2mm, and the maximum gap between the top plate 8 and the blanking hole 51 is 0.01mm-0.08mm; by setting the maximum gap between the top plate 8 and the blanking hole 51, the test piece is prevented from curling by the top plate 8 when blanking, the technical effect of leveling the blanked test piece is achieved, and the technical problem of curling deformation of the test piece caused by stress or pressure during blanking is effectively solved. Specifically,

[0048] As shown in Figure 3 According to the thickness of the test piece, the height of the punch 5 or the top plate 8 or the cavity 52 can be designed to meet the requirement that the top plate 8 is pulled away from the blanking hole 51 of the punch 5 by the tension of the elastic structure 10 when pressed, at this time, the distance between the end surface of the top plate 8 and the end surface of the blanking hole 51 is slightly larger than the thickness of the blanked test piece, the blanking space of the test piece is ensured, and the curling gap of the test piece is reduced, the test piece is prevented from curling by the end surface of the top plate 8, the technical effect of leveling the blanked test piece is achieved, and the technical problem of curling deformation of the test piece caused by stress or pressure during blanking is effectively solved.

[0049] The cable sheath dumbbell test piece punching device of this embodiment combines the features of Embodiment 1 and Embodiment 2 to achieve the purpose of multi-action linkage of punching, leveling and unloading, realizing the technical effect of simple structure and diversified operation, and improving punching efficiency and the standardization of punched test pieces.

[0050] Example 3

[0051] This embodiment 3 is formed based on embodiment 1 or embodiment 2, such as Figures 1-6 As shown, it also includes: a hopper 12, a connecting rod 13, a hinge 15, a shaft connector 16, and a limiting shaft 17. The hopper 12 has a discharge port on one side, and its non-discharge port side is connected to the third support plate 3 via the hinge 15. Its discharge port side is connected to the die mounting plate 4 via the connecting rod 13. When the die 5 reciprocates, the hopper 12 moves between the mounting plate 3 and the die 5. Specifically, the connecting rod 13 has a rotating hole at one end and a sliding groove 14 at the other end. The shaft connector 16 passes through the rotating hole and connects to the side wall of the hopper 12. The limiting shaft 17 passes through the sliding groove 14 and connects to the die mounting plate 4. The side wall of the mounting plate 4 is connected; while the die mounting plate 4 moves downward, the limiting shaft 17 rotates in the sliding groove 14 and moves towards the shaft connector 16 within the sliding groove 14. At this time, the hopper 12 no longer has an upward pulling force, and the hopper 12 rotates around the hinge 15 towards the third support plate 3 due to its own weight. When the die 5 moves to the end position, the discharge port of the hopper 12 rotates towards the third support plate 3 to a position that does not interfere with the die cutting operation; while the die mounting plate 4 moves upward to reset, the limiting shaft 17 rotates in the sliding groove 14 towards the shaft connector 16. The pivot 17 rotates within the sliding groove 14 and moves to the point where the sliding groove 14 is far from the interference point of the shaft connector 16. At this time, as the die mounting plate 4 continues to move upward, the connecting rod 13 has an upward pulling force, pulling the hopper 12 to rotate upward around the hinge 15. The discharge port of the hopper 12 rotates away from the third support plate 3. When the top of the ejector rod 9 abuts against the bottom of the stop rod 11, the telescopic end 61 drives the die mounting plate 4 and the die 5 to continue moving upward and reset. The ejector rod 9 is forced to compress the elastic structure 10. The top plate 8 is pushed to move towards the punching opening 51, so that when the test piece is ejected, the cable sheath dumbbell test piece ejected by the top plate 8 falls onto the hopper 12 and slides out from the discharge port; by setting a single linkage structure for transmission between the hopper 12 and the punching die mounting plate 4, the transmission structure is simple, compact and easy to install, reducing the cost of equipment production and maintenance, improving the reliability and adaptability of the equipment, ensuring the stability of the equipment receiving and discharging materials, and effectively solving the problems of cumbersome maintenance and low reliability caused by complex mechanical structures.

[0052] The limiting shaft 17 is in the sliding channel 14 and away from the maximum stroke position of the shaft connector 16, i.e. the interference point; when the limiting shaft 17 is at the interference point, the limiting shaft 17 continues to move upward to generate upward lifting force, which drives the hopper 12 to rotate around the hinge 15 through the connecting rod 13, so that the hopper 12 is rotated to the position of receiving materials under the die 5; when the limiting shaft 17 is not at the interference point, the hopper 12 can generally rotate around the hinge 15 by gravity to move away from the die mounting plate 4; if the hopper 12 is stuck and cannot rotate by gravity, the limiting shaft 17 is forced against the sliding channel 14 to move the hopper 12, so as to avoid the collision between the die 5 and the hopper 12.

[0053] In the embodiment, the angle between the hopper 12 and the third support plate 3 is 40-70° when the hopper 12 receives materials; the distance of the interference point of the limiting shaft 17 in the sliding channel 14, the position of the shaft connector 16 or the stroke distance of the die 5 can be adjusted.

[0054] In the embodiment, the shaft connector 16 and the limiting shaft 17 are both bolt structures, the screw rod of the shaft connector 16 passes through the connecting rod 13 and the connecting nut at the rear end of the hopper 12; the screw rod of the limiting shaft 17 passes through the sliding channel 14 and is screwed into the die mounting plate 4; the nut of the shaft connector 16 and the limiting shaft 17 can prevent the connecting rod 13 from being separated from the shaft connector 16 and the limiting shaft 17.

[0055] The working principle of the cable sheath dumbbell test piece blanking device of the embodiment is as follows: the material to be blanked is placed on the base plate 18 and below the punch 5; the punch mounting plate 4 and the punch 5 are driven to move downward by the extension end 61 of the driving mechanism 6, the test sample is blanked by the blanking hole 51, and the test sample is clamped in the cavity 52; while the punch mounting plate 4 moves downward, the limiting shaft 17 rotates in the sliding through groove 14 and moves to the side of the shaft connecting piece 16 in the sliding through groove 14, at this time, the hopper 12 is not pulled upward, and the hopper 12 rotates to the side of the third support plate 3 due to the weight and the hinge 15, when the punch 5 moves to the end position, the discharge port of the hopper 12 rotates to the position not interfering with the blanking operation; the punch mounting plate 4 and the punch 5 are driven to move upward by the extension end 61 of the driving mechanism 6 to reset, when the top of the ejecting rod 9 contacts the bottom of the blocking rod 11, the extension end 61 drives the punch mounting plate 4 and the punch 5 to continue to move upward to reset, the ejecting rod 9 is forced to extrude the elastic structure 10, and the top plate 8 is pushed to move to the blanking hole 51, so as to eject the test piece; while the punch mounting plate 4 moves upward to reset, the limiting shaft 17 rotates in the sliding through groove 14 and moves to the interference point of the sliding through groove 14 away from the shaft connecting piece 16, at this time, when the punch mounting plate 4 continues to move upward, the connecting rod 13 has an upward pulling force, pulls the hopper 12 to rotate upward around the hinge 15, and the discharge port of the hopper 12 rotates away from the third support plate 3, when the top of the ejecting rod 9 contacts the bottom of the blocking rod 11, the extension end 61 drives the punch mounting plate 4 and the punch 5 to continue to move upward to reset, the ejecting rod 9 is forced to extrude the elastic structure 10, and the top plate 8 is pushed to move to the blanking hole 51, so as to eject the test piece, and when the test piece is ejected, the cable sheath dumbbell test piece ejected by the top plate 8 falls into the hopper 12 and slides out of the discharge port. Through the combination of all the features in Embodiment 3 and Embodiment 2 or Embodiment 1, the material receiving and discharging structure, the punch structure, and the top plate ejection structure are linked, the blanking, flattening, unloading, and discharging multiple actions are linked, the blanking speed is improved, the manual intervention is reduced, the consistency and precision of the blanked test piece are ensured, and the problems of low efficiency caused by the traditional dispersed process, low safety coefficient caused by manual intervention, and inconsistent test pieces are solved.

[0056] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cable jacketed dumbbell coupon blanking apparatus comprising: A first support plate (1), a die (5), and a driving mechanism (6) provided on the first support plate (1) for driving the die (5) to reciprocate, characterized in that an end face of the die (5) in a punching direction is inwardly provided with a cavity (52) having a punching opening (51), and an end face of the die (5) in a resetting direction is connected with a die mounting plate (4). The cavity (52) is movably connected with a top plate (8) matched with the cavity (52), and the top plate (8) is symmetrically connected with two ejection rods (9) passing through the die mounting plate (4) on a side away from the punching opening (51), and the ejection rods (9) and the die mounting plate (4) are connected with an elastic structure (10) for driving the top plate (8) to move away from the punching opening (51). When the die (5) is reset, the end of the ejection rod (9) is in contact with the first support plate (1), the die (5) continues to reset and move, the ejection rod (9) is forced to push the top plate (8) to move towards the punching opening (51), and the test piece is ejected. Further comprising a third support plate (3), a hopper (12) connected to the third support plate (3) through a hinge (15), and a connecting rod (13) connected with the hopper (12) and the die mounting plate (4); the hopper (12) has a discharge opening on a side away from the hinge (15), one side of the connecting rod (13) is rotatably connected with the discharge opening side of the hopper (12), and the other side of the connecting rod (13) is rotatably and slidably connected with the die mounting plate (4). When the die (5) is punching, the hopper (12) is rotated downward around the hinge (15) by gravity, and the discharge opening of the hopper (12) is rotated towards the third support plate (3); during the resetting process of the die (5), the hopper (12) is rotated upward around the hinge (15) through the connecting rod (13), and the discharge opening of the hopper (12) is rotated away from the third support plate (3), and the cable sheath dumbbell test piece ejected by the top plate (8) falls into the hopper (12) and slides out of the discharge opening.

2. The cable jacketed dumbbell coupon blanking apparatus of claim 1, wherein, The maximum gap size between the top plate (8) and the punching opening (51) is 2%-4% of the thickness size of the test piece, and the top plate (8) can prevent the test piece from curling when the die (5) is punching.

3. The cable jacketed dumbbell coupon blanking apparatus of claim 1, wherein, The die mounting plate (4) is connected with two guide rods (7) symmetrically arranged thereon, and the guide rods (7) pass through the first support plate (1).

4. The cable jacketed dumbbell coupon blanking apparatus of claim 1, wherein, The elastic structure (10) is a tension spring, the end of the ejection rod (9) has a fixing block (91), the elastic structure (10) is sleeved outside the rod body of the ejection rod (9), and is between the fixing block (91) and the die mounting plate (4).

5. The cable jacketed dumbbell coupon blanking apparatus of claim 1, wherein, The first support plate (1) is provided with a blocking rod (11) abutting against the ejection rod (9).

6. The cable jacketed dumbbell coupon blanking apparatus of claim 1, wherein, The driving mechanism (6) is a telescopic cylinder, the fixed end of which is connected to the first support plate (1), and the telescopic end (61) of which is connected with the die mounting plate (4).

7. The cable jacketed dumbbell coupon blanking apparatus of claim 1, wherein, The connecting rod (13) is connected with the discharge port side of the hopper (12) through a shaft connector (16) on one side, and a sliding through slot (14) is formed on the other side of the connecting rod (13), and a limiting shaft (17) passes through the sliding through slot (14) and is connected with the die mounting plate (4).

8. The cable jacketed dumbbell coupon blanking apparatus of claim 1, wherein, The rotation angle of the hopper (12) is 40-70°.

9. The cable jacketed dumbbell coupon blanking apparatus of claim 1, wherein, The third support plate (3) is connected below the first support plate (1), and is located on one side of the die (5); when the die (5) reciprocates, the hopper (12) moves between the third support plate (3) and the die (5).

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