Continuous rubber shell bent pin shearing machine

Abstract

The utility model relates to a continuous rubber shell bent pin shearing machine, and belongs to the technical field of rubber shell bent pin shearing equipment. A positioning block is arranged on the inner bottom face of a groove of the machine frame, a lower die is installed on the positioning block, a lifting air cylinder is installed on the machine frame corresponding to the lower die, a lower pressing plate is installed on a piston rod of the lifting air cylinder, an upper die is installed at the position, corresponding to the lower die, of the lower pressing plate, and a guide rod is movably inserted in the position, on one side of the upper die, of the lower pressing plate through a sleeve and a buffer spring. One end of the guide rod is fixedly connected with the rack, a pushing mechanism is arranged on the rack on one side of the positioning block, and a collecting assembly is arranged on the other side of the positioning block. The connecting piece rubber shell bent pin shearing machine is simple in structure and convenient to operate, the manual labor amount is effectively reduced, and the working efficiency of rubber shell production is improved.

Description

Technical Field

[0001] The utility model relates to a bending and shearing machine for连片 plastic cases with bent pins, belonging to the technical field of plastic case bending and shearing equipment. Background Art

[0002] Plastic cases are important spare parts in network transformers. In order to improve the production efficiency of plastic cases, existing plastic cases are produced in groups of multiple pieces, commonly known as连片 plastic cases. A连片 plastic case consists of a metal fixing frame, pins, and a plastic case body. The metal fixing frame is a rectangular frame, and multiple plastic case bodies are arranged at intervals inside the metal fixing frame. Both sides of each plastic case body are connected to the metal fixing frame through multiple pins.

[0003] Before the assembly of the连片 plastic case, it is necessary to cut the connection between the pins and the metal fixing frame through the blade of a shearing device. After cutting, the plastic case bodies will become independent individuals. Each plastic case body has pins on both sides. Workers collect the plastic case bodies with pins and then place them one by one on a bending device. The pins are bent into a "Z" shape by the bending blocks arranged in a staggered manner in the bending device, thereby completing the further processing operation of the连片 plastic case and making the plastic case body meet the subsequent assembly operation. However, the existing method of performing processing operations sequentially using a shearing device and a bending device not only has complex operation steps but also requires a large amount of manual transfer labor, resulting in low production efficiency of plastic cases. Therefore, it is necessary to improve it. Summary of the Invention

[0004] The purpose of the utility model is to provide a bending and shearing machine for连片 plastic cases with bent pins that can effectively reduce the amount of manual labor and improve the production efficiency of plastic cases.

[0005] The technical solution of the utility model is as follows:

[0006] A bending and shearing machine for连片 plastic cases with bent pins includes a frame. It is characterized in that: the frame is in a "C" shape. A positioning block is arranged on the inner bottom surface of the groove of the frame. A lower die is installed on the positioning block. An elevating cylinder is installed on the frame corresponding to the lower die. A lower pressing plate is installed on the piston rod of the elevating cylinder. An upper die is installed on the lower pressing plate at a position corresponding to the lower die. A guide rod is movably inserted through a sleeve and a buffer spring on the lower pressing plate on one side of the upper die. One end of the guide rod is fixedly connected to the frame. A pushing mechanism is installed on the frame on one side of the positioning block, and a collecting assembly is installed on the other side of the positioning block.

[0007] A limiting plate is fixedly installed on the piston rod, and a limiting column is fixedly installed on the limiting plate. The limiting column is in contact connection with the inner top surface of the groove of the frame.

[0008] The lower die is in a long strip shape. A workpiece positioning groove is opened along the axial direction at the center position of the top of the lower die. Stepped bosses are arranged on the lower die on both sides of the workpiece positioning groove, and an inclined surface is arranged outside the bosses.

[0009] The upper die is in the shape of an elongated strip, and a workpiece clearance groove is provided at the center position of the bottom of the upper die along its axial direction. The workpiece clearance groove is in the shape of a variable diameter, and a clamping strip is inserted in the workpiece clearance groove through multiple return springs. The cross-section of the clamping strip is in the shape of a "T". Bumps are provided on the upper die on both sides of the workpiece clearance groove, and the bumps are correspondingly provided with the bosses. A shearing knife is provided on the upper die outside the bump, and the shearing knife and the boss are staggered.

[0010] The pushing mechanism comprises a pushing cylinder, which is fixedly mounted on the frame through an assembly plate, and a pushing block is fixedly mounted on the piston rod of the pushing cylinder. The pushing block is a rectangular block, and the pushing block is arranged corresponding to the workpiece positioning groove.

[0011] The collecting component includes a positioning frame, the cross-section of the positioning frame is in a "T" shape, a material box positioning groove is opened on the top of the positioning frame corresponding to the workpiece positioning groove, a transparent material box is installed in the material box positioning groove, the opening of the transparent material box corresponds to the workpiece positioning groove and the boss, and symmetrical clearance recesses are opened on the positioning frame on both sides of the material box positioning groove, and the clearance recesses are connected to the material box positioning groove.

[0012] The beneficial effects of the utility model compared with the prior art are:

[0013] The contiguous rubber shell bending foot shearing machine can limit the contiguous rubber shell through the workpiece positioning groove of the lower die, and drive the lower pressure plate and the upper die to approach the lower die through the piston rod of the lifting cylinder. When the upper die and the lower die are approaching each other, under the elastic force of the reset spring, the clamping strip pre-compresses the contiguous rubber shell, and the convex block and the stepped boss cooperate to squeeze a plurality of pins into a "Z" shape. The shearing knife and the boss cooperate to cut the connection between the pins and the metal fixing frame, and the metal fixing frame is also cut off at the same time. The piston rod of the pushing cylinder drives the pushing block to push the plurality of sheared rubber shells into the transparent material box along the workpiece positioning groove of the lower die, thereby completing a contiguous rubber shell bending foot shearing operation. The contiguous rubber shell bending foot shearing machine has a simple structure and is easy to operate, effectively reduces manual labor, and improves the work efficiency of rubber shell production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is a front view structural schematic diagram of the utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0017] Figure 4 It is a partial structural schematic diagram of the upper die and the lower die in the utility model;

[0018] Figure 5 for Figure 4 Schematic structural diagram after placing the continuous connecting rubber shell;

[0019] Figure 6 is Figure 4 Schematic working structure diagram during the bending foot shearing of the continuous connecting rubber shell;

[0020] Figure 7 Schematic structural diagram of the continuous connecting rubber shell in the present utility model.

[0021] In the figure: 1, frame; 2, positioning block; 3, lower die; 4, workpiece positioning groove; 5, convex platform; 6, inclined surface; 7, lifting cylinder; 8, lower pressure plate; 9, upper die; 10, workpiece让位 groove; 11, pressing strip; 12, return spring; 13, convex block; 14, shearing knife; 15, sleeve; 16, guide rod; 17, buffer spring; 18, limit plate; 19, limit post; 20, pushing cylinder; 21, pushing block; 22, positioning frame; 23, transparent material box; 24,让位 concave; 25, metal fixing frame; 26, pin; 27, rubber shell body; 28, continuous connecting rubber shell. Specific embodiments

[0022] As shown in the appendix Figure 1-7 shown

[0023] The continuous connecting rubber shell bending foot shearing machine includes a frame 1, the frame 1 is in a "C" shape, a positioning block 2 is fixedly installed on the inner bottom surface of the groove of the frame 1, the positioning block 2 is a rectangular block, a lower die 3 is fixedly installed on the positioning block 2, the lower die 3 is strip-shaped, a workpiece positioning groove 4 is opened at the center position of the top of the lower die 3 along its axial direction, the workpiece positioning groove 4 is a rectangular groove, the length of the workpiece positioning groove 4 is greater than the length of the continuous connecting rubber shell 28, stepped convex platforms 5 are arranged on the lower die 3 on both sides of the workpiece positioning groove 4, and inclined surfaces 6 are arranged on the outer sides of the convex platforms 5. During work, the inclined surfaces 6 can guide the metal fixing frame 25 to be sheared, facilitating the dropped metal fixing frame 25 to fall to both sides of the lower die 3.

[0024] A lifting cylinder 7 is fixedly installed on the frame 1 corresponding to the lower die 3, a lower pressure plate 8 is fixedly installed on the piston rod of the lifting cylinder 7, an upper die 9 is fixedly installed at the corresponding position of the lower pressure plate 8 and the lower die 3, the upper die 9 has the same length as the lower die 3, the upper die 9 is strip-shaped, a workpiece让位 groove 10 is opened at the center position of the bottom of the upper die 9 along its axial direction, the workpiece让位 groove 10 is of variable diameter, a pressing strip 11 is movably inserted into the workpiece让位 groove 10, the cross section of the pressing strip 11 is in a "T" shape. During work, the pressing strip 11 can slide up or down in the workpiece让位 groove 10.

[0025] A plurality of return springs 12 are arranged between the pressing strip 11 and the workpiece让位 groove 10. During work, the elastic force of the return springs 12 makes the pressing strip 11 have a tendency to move downward in the workpiece让位 groove 10.

[0026] The upper die 9 on both sides of the workpiece clearance groove 10 is provided with a protrusion 13, and the protrusion 13 is correspondingly arranged with the boss 5. A shearing knife 14 is provided on the upper die 9 outside the protrusion 13, and the shearing knife 14 is staggered with the boss 5. When working, the pin 26 can be bent in a "Z" shape through the mutual extrusion and cooperation between the protrusion 13 and the boss 5, and the metal fixing frame 25 and the connection between the metal fixing frame 25 and the pin 26 can be cut off through the mutual staggered cooperation between the shearing knife 14 and the boss 5, so that the continuous plastic shell 28 is sheared into individual plastic shells.

[0027] A sliding hole is provided on the lower pressure plate 8 on one side of the upper mold 9, and a sleeve 15 is fixedly installed on the upper mold 9 at the bottom of the sliding hole. A guide rod 16 is movably inserted into the sleeve 15, and one end of the guide rod 16 is fixedly connected to the frame 1. A buffer spring 17 is mounted on the guide rod 16 between the sleeve 15 and the frame 1. When in use, the lower pressure plate 8, the sleeve 15, and the guide rod 16 cooperate with each other to form a guiding effect on the upper mold 9, and the elastic force of the buffer spring 17 plays a certain buffering role in the downward pressing process of the lower pressure plate 8.

[0028] A limit plate 18 is fixedly mounted on the piston rod, and a limit column 19 is fixedly mounted on the limit plate 18. The limit column 19 is in contact with the top surface of the groove of the frame 1. When in use, the limit plate 18 and the limit column 19 cooperate to limit the rising height of the piston rod.

[0029] A pushing mechanism is installed on the frame 1 on one side of the positioning block 2, and the pushing mechanism includes a pushing cylinder 20, which is fixedly installed on the frame 1 through an assembly plate, and a pushing block 21 is fixedly installed on the piston rod of the pushing cylinder 20. The pushing block 21 is a rectangular block, and the pushing block 21 is arranged corresponding to the workpiece positioning groove 4. When working, the pushing block 21 slides along the axial direction of the workpiece positioning groove 4, so that the rubber shell in the workpiece positioning groove 4 is pushed along the axial direction of the workpiece positioning groove 4.

[0030] A collecting component is installed on the other side of the positioning block 2, and the collecting component includes a positioning frame 22. The cross-section of the positioning frame 22 is "T"-shaped. A material box positioning groove is opened on the top of the positioning frame 22 corresponding to the workpiece positioning groove 4. A transparent material box 23 is clamped in the material box positioning groove. The transparent material box 23 is a long rectangular box-shaped body with an open end. The opening of the transparent material box 23 corresponds to the workpiece positioning groove 4 and the boss 5. During operation, when the plastic shell moves along the axial direction of the workpiece positioning groove 4 toward the opening direction of the transparent material box 23, the plastic shell can smoothly pass through the opening into the transparent material box 23.

[0031] The positioning frames 22 on both sides of the magazine positioning groove are symmetrically provided with clearance recesses 24 , which are connected to the magazine positioning groove. During operation, the transparent magazine 23 can be conveniently removed from the magazine positioning groove of the positioning frame 22 through the clearance recesses 24 .

[0032] When the continuous plastic shell bending leg shearing machine is used, the continuous plastic shell 28 to be processed is first placed in the workpiece positioning groove 4, and then the piston rod of the lifting cylinder 7 is started to extend, and the piston rod drives the upper mold 9 to move downward through the lower pressure plate 8. When the upper mold 9 and the lower mold 3 cooperate with each other to squeeze, the protrusion 13 and the boss 5 are squeezed and cooperated with each other to bend the pin 26 in a "Z" shape. The shearing knife 14 and the boss 5 are staggered and cooperated with each other to cut off the metal fixing frame 25 and the connection between the metal fixing frame 25 and the pin 26, so that the continuous plastic shell 28 is sheared into a separate plastic shell body 27.

[0033] At this time, the piston rod of the lifting cylinder 7 is controlled to reset, and the piston rod of the pushing cylinder 20 is started to extend, so that the sheared plastic shell individuals are pushed into the transparent material box 23, and the piston rod of the pushing cylinder 20 is controlled to reset, and a transparent material box 23 is replaced, and the next generation of processed continuous plastic shells 28 are placed in the workpiece positioning groove 4 again, and the continuous plastic shells 28 can be bent and sheared again.

[0034] The continuous plastic shell bending leg shearing machine has a simple structure and is easy to operate, effectively reducing manual labor and improving the work efficiency of plastic shell production.

Claims

1. A continuous plastic shell bending leg shearing machine, comprising a frame (1), characterized in that: The frame (1) is in a "C" shape. A positioning block (2) is arranged on the inner bottom surface of the groove of the frame (1). A lower die (3) is installed on the positioning block (2). A lifting cylinder (7) is installed on the frame (1) corresponding to the lower die (3). A lower pressing plate (8) is installed on the piston rod of the lifting cylinder (7). An upper die (9) is installed at the corresponding position of the lower pressing plate (8) and the lower die (3). A guide rod (16) is movably inserted on the lower pressing plate (8) on one side of the upper die (9) through a sleeve (15) and a buffer spring (17). One end of the guide rod (16) is fixedly connected to the frame (1). A pushing mechanism is installed on the frame (1) on one side of the positioning block (2), and a collecting assembly is installed on the other side of the positioning block (2).

2. The continuous plastic shell bending leg shearing machine according to claim 1, characterized in that: A limit plate (18) is fixedly installed on the piston rod. A limit post (19) is fixedly installed on the limit plate (18). The limit post (19) is in contact connection with the inner top surface of the groove of the frame (1).

3. The continuous plastic shell bending leg shearing machine according to claim 1, characterized in that: The lower die (3) is in a long strip shape. A workpiece positioning groove (4) is opened at the center position of the top of the lower die (3) along its axial direction. Step-shaped bosses (5) are arranged on the lower die (3) on both sides of the workpiece positioning groove (4). An inclined surface (6) is arranged outside the boss (5).

4. The continuous plastic shell bending leg shearing machine according to claim 1, characterized in that: The upper die (9) is in a long strip shape. A workpiece让位 groove (10) is opened at the center position of the bottom of the upper die (9) along its axial direction. The workpiece让位 groove (10) is of a variable diameter shape. A pressing strip (11) is inserted in the workpiece让位 groove (10) through a plurality of return springs (12). The cross section of the pressing strip (11) is in a "T" shape. Protrusions (13) are arranged on the upper die (9) on both sides of the workpiece让位 groove (10). The protrusions (13) are arranged corresponding to the bosses (5). A shearing knife (14) is arranged on the upper die (9) outside the protrusion (13). The shearing knife (14) is arranged in a misaligned manner in cooperation with the boss (5).

5. The continuous plastic shell bending leg shearing machine according to claim 1, characterized in that: The pushing mechanism includes a pushing cylinder (20). The pushing cylinder (20) is fixedly installed on the frame (1) through an assembly plate. A pushing block (21) is fixedly installed on the piston rod of the pushing cylinder (20). The pushing block (21) is a rectangular block. The pushing block (21) is arranged corresponding to the workpiece positioning groove (4).

6. The continuous plastic shell bending leg shearing machine according to claim 1, characterized in that: The collecting assembly includes a positioning frame (22). The cross section of the positioning frame (22) is in a "T" shape. A material box positioning groove is opened at the top end of the positioning frame (22) corresponding to the workpiece positioning groove (4). A transparent material box (23) is installed in the material box positioning groove. The opening of the transparent material box (23) is corresponding to the workpiece positioning groove (4) and the boss (5).让位 recesses (24) are symmetrically opened on the positioning frame (22) on both sides of the material box positioning groove. The让位 recesses (24) are communicated with the material box positioning groove.

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