Shear Die

Abstract

The present application relates to the field of injection molding processing equipment, and in particular to shearing dies. To address the problem of uneven and protruding cut surfaces left on injection molded parts after shearing with pliers, the present application provides a solution comprising a workbench, a shearing table mounted on the workbench, a shearing mechanism mounted on the shearing table, a guide rail table mounted on the workbench, a lifting guide rail mechanism mounted on the guide rail table, a waiting channel mounted on the shearing table, and injection molded parts moved from the lifting guide rail mechanism into the waiting channel, where the shearing mechanism shears the injection molded parts. The present application improves the efficiency of separating the injection molded parts from the material heel and improves the flatness of the injection molded parts after separation.

Description

Technical Field

[0001] The present application relates to the field of injection molding processing equipment, and in particular to shear molds. Background Art

[0002] Injection molded parts refer to various injection molded products produced by injection molding machines. After the injection molded parts are demolded from the mold, the material on the edge of the injection molded parts needs to be manually cut off one by one with diagonal pliers.

[0003] Since one material heel connects two injection-molded parts, each pair of workpieces needs to be cut twice to separate one material heel from the two injection-molded parts, which is inefficient. At the same time, the cut surface left on the injection-molded part after cutting with pliers is uneven and prone to protrusions, so it needs to be improved. Summary of the Invention

[0004] In order to improve the efficiency of separating the injection molded part from the material heel and improve the flatness of the injection molded part after the injection molded part is separated from the material heel, the present application provides a shear mold.

[0005] The shearing die provided in this application adopts the following technical solution:

[0006] The shearing die comprises a work frame, a shearing workbench is installed on the work frame, a shearing mechanism is installed on the shearing workbench, a guide rail workbench is set for lifting on the work frame, a lifting guide rail mechanism is set on the guide rail workbench; a waiting channel is set on the shearing workbench; the injection molded part moves from the lifting guide rail mechanism to the waiting channel, and the shearing mechanism shears the injection molded part.

[0007] By adopting the above technical solution, the guide rail workbench drives the lifting guide rail mechanism to move to the top of the workbench, and the manipulator moves with the injection molded parts to the top of the lifting guide rail mechanism, and places two groups of injection molded parts on the lifting guide rail mechanism; the guide rail workbench drives the lifting guide rail mechanism to move downward, and when the lifting guide rail mechanism moves to the middle of the workbench, the lifting guide rail mechanism transfers the two groups of injection molded parts to the waiting channel, and the operator takes the injection molded parts from the waiting channel and cuts off the material heel of the injection molded parts at the shearing mechanism; the shearing mechanism is used to shear the injection molded parts and the material heel, so that the separation efficiency of the injection molded parts and the material heel is higher, and the side wall of the sheared edge of the injection molded part fits the arc edge of the injection molded part itself, thereby improving the flatness of the injection molded part after the injection molded part and the material heel are separated.

[0008] Optionally, the lifting guide rail mechanism includes a fixed material channel 1, a fixed material channel 2 and a steering assembly, the fixed material channel 1 and the fixed material channel 2 are both rotatably mounted on the guide rail workbench, and the fixed material channel 1 and the fixed material channel 2 are arranged in parallel, and the fixed material channel 1 and the fixed material channel 2 are connected to the waiting channel; the steering assembly is installed on the workbench, and the steering assembly controls the fixed material channel 1 and the fixed material channel 2 to rotate along the connection, so that the fixed material channel 1 and the fixed material channel 2 are tilted to send the injection molded parts into the waiting channel.

[0009] Optionally, the steering assembly includes a steering cylinder and a steering roller. The steering cylinder is installed on the work frame and is located below the guide rail workbench. The steering roller is rotatably connected to the piston rod of the steering cylinder. The steering roller is raised and lowered to control the lifting or flattening of one end of fixed material channel one and fixed material channel two.

[0010] By adopting the above technical solution, the steering cylinder is started, and the steering cylinder drives the steering roller to move upward and pass through the steering gap. When the steering roller is in contact with the bottom walls of the two extended material channels, the steering roller continues to move upward, driving the fixed material channel 1 and the fixed material channel 2 to rotate. At this time, the fixed material channel 1 and the fixed material channel 2 are close to one end of the cutting workbench and are stationary, and the other end of the fixed material channel 1 and the fixed material channel 2 rotate upward; under the action of gravity, the injection molded parts group located in the fixed material channel 1 slides toward the waiting channel, and the injection molded parts group located in the fixed material channel 2 slides toward the waiting channel.

[0011] Optionally, the lifting guide rail mechanism also includes a sliding material channel and a driving assembly. The fixed material channel one and the fixed material channel two are both provided with extended material channels at one end away from the waiting channel. A limiting rod is provided on the side where the two extended material channels face away from each other. The driving assembly drives the sliding material channel to move between the two limiting rods, and the sliding material channel is aligned with the fixed material channel one or with the fixed material channel two.

[0012] Optionally, the driving assembly includes an upper guide plate, a lower guide plate and a guide wheel, the guide plate and the lower guide plate are both installed on the work frame, the guide wheel is rotatably installed on the sliding material channel, and the guide wheel can roll on the upper guide plate or the lower guide plate, the upper guide plate guides the sliding material channel from the second fixed material channel to the first fixed material channel, and the lower guide plate guides the sliding material channel from the first fixed material channel to the second fixed material channel.

[0013] By adopting the above technical solution, the guide rail workbench is set at the fixed end of the work frame as the initial end, and the guide wheel is at the highest point of the bottom wall of the upper guide plate; the guide rail workbench moves downward, and in the process of the guide rail workbench moving downward, the sliding material channel and the guide wheel are first at one fixed material channel, and the guide wheel moves from fixed material channel one to fixed material channel two under the guidance of the guide surface of the lower guide plate; when the guide rail workbench descends to the designated location, the guide wheel is at the lowest point of the top wall of the lower guide plate, and the sliding material channel moves to fixed material channel two at the same time; when the guide cylinder moves the guide rail workbench to the top of the work frame, fixed material channel one and sliding material channel are in the same straight line, and the robot clamps two groups of injection molded parts and places them on fixed material channel one and sliding material channel respectively; the guide rail workbench moves down to the middle of the work frame, and the sliding material channel moves to fixed material channel two, and at this time the sliding material channel is connected to fixed material channel two.

[0014] Optionally, a linkage hole is provided on the top wall of the lower guide plate, a linkage rod is slidably arranged in the linkage hole, a locking groove is provided on the side wall of the lower guide plate, a locking rod is slidably arranged in the locking groove, a locking inclined groove is provided on the side of the locking rod facing the linkage rod, one end of the locking rod is inserted into the locking inclined groove, one end of the locking rod extends out of the lower guide plate and is arranged above the steering assembly, a locking spring is provided at the end of the locking rod away from the steering assembly, and the end of the locking spring away from the locking rod is fixed to the inner wall of the locking groove.

[0015] By adopting the above technical solution, the guide wheel presses the linkage rod downward, the linkage rod slides in the locking bevel groove, and the locking rod retracts into the locking groove. At this time, the locking spring is compressed, and the piston rod of the steering cylinder can be smoothly extended; when the guide rail workbench moves up again, the guide wheel leaves the lower guide plate, the linkage rod loses pressure, and the elastic force of the locking spring pops one end of the locking rod out of the locking groove again. The linkage rod rises again under the guidance of the bottom of the locking bevel groove and protrudes on the top wall of the lower guide plate. By moving the guide wheel to the lowest point of the lower guide plate, the sliding channel can be completely aligned with the fixed channel 2. At this time, the steering cylinder is lifted, and the injection molding group in the sliding channel can be smoothly moved into the fixed channel 2. Therefore, in order to ensure the stability of the steering cylinder during use, when the sliding channel has not moved to the fixed channel 2, the locking rod locks the steering cylinder, and the guide wheel moves the sliding channel to the fixed channel 2 under the guidance of the lower guide plate. When the sliding channel moves to the desired position, the locking rod also releases the lock on the steering cylinder.

[0016] Optionally, a partition plate is provided at one end of the fixed material channel 1 close to the sliding material channel, and the partition plate separates the fixed material channel 1 from the sliding material channel.

[0017] By adopting the above technical solution, when the axis of the sliding channel is collinear with the fixed channel, the partition plate separates the sliding channel from the fixed channel, and the sliding channel and the fixed channel cannot communicate with each other.

[0018] Optionally, the shearing mechanism includes a positioning block, a trigger rod, two shearing knives and a power assembly, the positioning block is installed on the shearing workbench, the trigger rod is slidably installed on the shearing workbench, a mounting base is installed at the bottom of the shearing workbench, a press switch is provided on the mounting base, one end of the trigger rod is exposed to the shearing workbench, and the other end passes through the shearing workbench and is attached to the press switch; the power assembly drives the two shearing knives to move along the circumference of the positioning block.

[0019] Optionally, the power assembly includes a power mounting block, a power support block, a power block and a power piece, the power piece is mounted on the mounting base, and the power piece drives the power block to move back and forth; the power support block is mounted on the mounting base, and the top wall of the power support block is provided with a power support notch, and the power support notch is opened along the movement direction of the power block, and the power block is inserted in the power support notch and moves therein; two power inclined holes are opened on the power block, and the two power inclined holes are symmetrically arranged along the movement direction of the power block, and a power rod is slidably arranged in the power inclined hole, the power mounting block is installed above the power support block and passes through the table top of the shearing workbench, and a power arc hole is opened on the power mounting block, and the two shear knives slide in the power arc hole, and a stabilizing arc block is provided on the side of the shear knife close to the power support block, and the stabilizing arc block is connected to the power rod.

[0020] By adopting the above technical solution, the operator sets the injection molded part on the positioning block. At this time, the material heel is located between the two shearing knives, and the injection molded part is placed on the trigger rod. When the operator presses down on the injection molded part, the injection molded part presses the trigger rod downward to press the push switch. The push switch gives a signal to start the power cylinder. The piston rod of the power cylinder extends, and the power rod moves along the power inclined hole. The two power rods approach each other, and the power rod drives the stabilizing arc block to move. The stabilizing arc block drives the shearing knives to move along the power arc hole. The two shearing knives approach each other to separate the material heel from the injection molded part. Using the shearing knives to shear the injection molded part and the material heel makes the separation efficiency of the injection molded part and the material heel higher. The shearing knives move along the circumferential direction of the positioning block to shear, so that the side wall of the shear cut of the injection molded part fits the arc edge of the injection molded part itself, thereby improving the flatness of the injection molded part after the injection molded part and the material heel are separated.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The guide rail workbench drives the lifting guide rail mechanism to move to the top of the workbench. The manipulator moves the injection molded parts to the top of the lifting guide rail mechanism and places two groups of injection molded parts on the lifting guide rail mechanism. The guide rail workbench drives the lifting guide rail mechanism to move downward. When the lifting guide rail mechanism moves to the middle of the workbench, the lifting guide rail mechanism transfers the two groups of injection molded parts to the waiting channel. The operator takes the injection molded parts from the waiting channel and cuts off the heel of the injection molded parts at the shearing mechanism. The shearing mechanism is used to shear the injection molded parts and the heel, which makes the separation efficiency of the injection molded parts and the heel higher, so that the side wall of the sheared edge of the injection molded parts fits the curved edge of the injection molded parts themselves, thereby improving the flatness of the injection molded parts after separation from the heel.

[0023] 2. To ensure the stability of the steering cylinder during use, when the sliding channel has not moved to the second fixed channel, the locking rod locks the steering cylinder. The guide wheel moves the sliding channel to the second fixed channel under the guidance of the lower guide plate. When the sliding channel moves to the desired position, the locking rod also releases the lock on the steering cylinder.

[0024] 3. The operator sets the injection molded part on the positioning block. At this time, the material heel is located between the two shear knives, and the injection molded part is placed on the trigger rod. When the operator presses down on the injection molded part, the injection molded part presses the trigger rod down to press the press switch. The press switch gives a signal to start the power cylinder. The piston rod of the power cylinder extends, and the power rod moves along the power inclined hole. The two power rods approach each other, and the power rod drives the stable arc block to move. The stable arc block drives the shear knife to move along the power arc hole. The two shear knives approach each other to separate the material heel and the injection molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the shearing die in Example 1 of the present application.

[0026] Figure 2 It is a cross-sectional schematic diagram used to illustrate the structure of the lifting guide rail mechanism in Example 1 of the present application.

[0027] Figure 3 It is a structural diagram used to reflect the relationship between the steering assembly and the sliding material channel in Example 1 of the present application.

[0028] Figure 4 It is a structural diagram used to embody the shearing mechanism in Example 1 of the present application.

[0029] Figure 5 It is an exploded diagram used to illustrate the positional relationship between the power block and the power support block in Example 1 of the present application.

[0030] Figure 6 It is a cross-sectional view used to reflect the positional relationship between the power mounting block and the stabilizing arc block in Example 1 of the present application.

[0031] Figure 7 It is a structural diagram used to reflect the connection relationship between the movable lower guide plate and the linkage rod in Example 2 of the present application.

[0032] Explanation of reference numerals: 1. work frame; 2. shearing workbench; 21. mounting base; 22. press switch; 3. shearing mechanism; 31. positioning block; 32. trigger rod; 33. shearing knife; 331. stabilizing arc block; 34. power assembly; 341. power mounting block; 3411. power arc hole; 3412. stabilizing arc groove; 3413. trigger hole; 342. power support block; 3421. power support notch; 343. power block; 3431. power inclined hole; 3432. power rod; 344. power part; 4. guide rail workbench; 41. guide rail cylinder; 42. rotating Towards the gap; 43, the gap for making way; 5, the lifting guide rail mechanism; 51, the fixed material channel 1; 511, the extended material channel; 512, the limiting rod; 513, the partition plate; 52, the fixed material channel 2; 53, the steering assembly; 531, the steering cylinder; 532, the steering roller; 54, the sliding material channel; 55, the driving assembly; 551, the upper guide plate; 552, the lower guide plate; 553, the guide wheel; 6, the waiting channel; 61, the waiting channel 1; 62, the waiting channel 2; 7, the linkage hole; 71, the linkage rod; 72, the locking groove; 73, the locking rod; 731, the locking inclined groove; 74, the locking spring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-7 This application is described in further detail.

[0034] The embodiment of the present application discloses a shearing die.

[0035] Example 1

[0036] Reference Figure 1 and Figure 2 The shearing die includes a work frame 1, which is placed on the ground. A shearing workbench 2 is installed on one side of the work frame 1, and a shearing mechanism 3 is installed on the shearing workbench 2. A waiting channel 6 is also installed on the shearing workbench 2; a guide rail workbench 4 is installed on the other side of the work frame 1 for lifting, and a lifting guide rail mechanism 5 is installed on the guide rail workbench 4.

[0037] The guide rail workbench 4 drives the lifting guide rail mechanism 5 to move to the top of the workbench 1, and the manipulator moves with the injection molded parts to the top of the lifting guide rail mechanism 5, and places the two groups of injection molded parts on the lifting guide rail mechanism 5; the guide rail workbench 4 drives the lifting guide rail mechanism 5 to move downward, and when the lifting guide rail mechanism 5 moves to the middle of the workbench 1, the lifting guide rail mechanism 5 transfers the two groups of injection molded parts to the waiting channel 6, and the operator takes the injection molded parts from the waiting channel 6 and cuts off the injection molded parts at the shearing mechanism 3.

[0038] Reference Figure 2A guide rail cylinder 41 is provided at the bottom of the guide rail workbench 4, the cylinder body of the guide rail cylinder 41 is fixed to the bottom of the work frame 1, and the piston rod of the guide rail cylinder 41 is connected to the bottom wall of the guide rail workbench 4; guide rods are slidingly provided at the four corners of the guide rail workbench 4, and the two ends of the guide rods are fixed on the work frame 1; the guide rail workbench 4 slides along the length direction of the guide rods through bearings.

[0039] The guide rail cylinder 41 is started, the piston rod of the guide rail cylinder 41 extends from the cylinder body, the guide rail workbench 4 moves up with the lifting guide rail mechanism 5, and finally moves to the top of the workbench 1. The manipulator places the injection molded part on the lifting guide rail mechanism 5, the piston rod of the guide rail cylinder 41 retracts into the cylinder body, and the guide rail workbench 4 moves down with the lifting guide rail mechanism 5.

[0040] Reference Figure 2 The lifting guide rail mechanism 5 includes a fixed material channel 1 51 and a fixed material channel 2 52. The fixed material channel 1 51 and the fixed material channel 2 52 are rotatably connected to the guide rail workbench 4 at one end close to the shearing mechanism 3. The fixed material channel 1 51 and the fixed material channel 2 52 can rotate along the connection point, so that the fixed material channel 1 51 and the fixed material channel 2 52 are tilted from high to low in the direction of the shearing mechanism 3, and the injection molded parts slide along the fixed material channel 1 51 and the fixed material channel 2 52 toward the waiting channel 6; the fixed material channel 1 51 and the fixed material channel 2 52 are arranged in parallel.

[0041] Fixed material channel 1 51 and fixed material channel 2 52 are both provided with an extended material channel 511 at the end away from the waiting channel 6, and a rotating column is provided in fixed material channel 1 51, fixed material channel 2 52 and extended material channel 511; the two extended material channels 511 are fixed with a limiting rod 512 on the side facing away from each other by bolts, and the distance between the two limiting rods 512 is the sum of the widths of the two extended material channels 511.

[0042] A sliding channel 54 is provided on the extended channel 511. The width of the sliding channel 54 is the width of one extended channel 511. The bottom of the sliding channel 54 passes through the common rotating column with the extended channel 511. The sliding channel 54 can slide back and forth between the two limit rods 512 through the shaft rod, so that the axis of the sliding channel 54 is collinear with the fixed channel 1 51 or the fixed channel 2 52. A partition plate 513 is provided between the fixed channel 1 51 and its extended channel 511. The partition plate 513 is fixed to the tail end of the fixed channel 1 51 by bolts. When the axis of the sliding channel 54 is collinear with the fixed channel 1 51, the partition plate 513 separates the sliding channel 54 from the fixed channel, and the sliding channel 54 and the fixed channel 1 51 cannot communicate with each other.

[0043] Reference Figure 2 and Figure 3A driving assembly 55 is installed on the working frame 1. The driving assembly 55 drives the sliding material channel 54 to move between the two limit rods 512. The driving assembly 55 includes an upper guide plate 551 and a lower guide plate 552. The upper guide plate 551 is installed on the top of the working frame 1 by bolts, and the lower guide plate 552 is installed in the middle of the working frame 1 by bolts.

[0044] Reference Figure 2 and Figure 3 The bottom wall of the upper guide plate 551 is divided into a guide surface and a limit surface. The guide surface is on the side of the upper guide plate 551 close to the fixed material channel 2 52. At this time, the height of the guide surface rises from the side wall of the upper guide plate 551 toward the direction close to the fixed material channel 1 51. The limit surface is on the side of the upper guide plate 551 close to the fixed material channel 1 51. The height of the limit surface rises from the side wall of the upper guide plate 551 toward the direction close to the fixed material channel 2 52. The guide surface and the limit surface are connected on the axis of the fixed material channel 1 51. The connection between the guide surface and the limit surface is the highest point of the bottom wall of the upper guide plate 551.

[0045] Reference Figure 2 and Figure 3 The top wall of the lower guide plate 552 is also divided into a guide surface and a limit surface. The guide surface is on the side of the lower guide plate 552 close to the fixed material channel 1 51. At this time, the height of the guide surface decreases from the side wall of the lower guide plate 552 toward the direction close to the fixed material channel 2 52. The limit surface is on the side of the lower guide plate 552 close to the fixed material channel 2 52. The height of the limit surface decreases from the side wall of the lower guide plate 552 toward the direction close to the fixed material channel 1 51. The guide surface and the limit surface are connected on the axis of the fixed material channel 2 52. The connection between the guide surface and the limit surface is the lowest point of the top wall of the lower guide plate 552.

[0046] Reference Figure 2 and Figure 3 The driving assembly 55 also includes a guide wheel 553, which is rotatably connected to the end of the sliding channel 54 away from the waiting channel 6; the fixed end of the guide rail workbench 4 on the work frame 1 is the initial end. At this time, the guide wheel 553 is located at the highest point of the bottom wall of the upper guide plate 551; when the piston rod of the guide rail cylinder 41 retracts, the guide rail workbench 4 moves down. In the process of the guide rail workbench 4 moving down, the sliding channel 54 and the guide wheel 553 are first at the fixed channel 51. When the guide wheel 5 53 contacts the guide surface of the lower guide plate 552, and the guide wheel 553 moves from the fixed material channel 1 51 to the fixed material channel 2 52 under the guidance of the guide surface of the lower guide plate 552; when the piston rod of the guide rail cylinder 41 is completely retracted into the cylinder body, the guide rail workbench 4 descends to the designated location. At this time, the guide wheel 553 is at the lowest point of the top wall of the lower guide plate 552, and at the same time, the sliding material channel 54 moves to the fixed material channel 2 52 and is limited by the limit rod 512.

[0047] When the guide rail cylinder 41 moves the guide rail workbench 4 to the top of the workbench 1, the fixed material channel 1 51 and the sliding material channel 54 are in the same straight line, and the robot clamps two groups of injection molded parts and places them on the fixed material channel 1 51 and the sliding material channel 54 respectively; the guide rail cylinder 41 moves the guide rail workbench 4 down to the middle of the workbench 1, and the sliding material channel 54 moves to the fixed material channel 2 52. At this time, the sliding material channel 54 is connected to the fixed material channel 2 52.

[0048] Reference Figure 2 and Figure 3 A steering assembly 53 for controlling the rotation of fixed material channel 1 51 and fixed material channel 2 52 is also provided on the work frame 1. The steering assembly 53 is installed on the side of the work frame 1 away from the cutting workbench. The steering assembly 53 includes a steering cylinder 531 and a steering roller 532. The steering cylinder 531 is installed on the work frame 1, and the steering cylinder 531 is located below the lowest point of movement of the guide rail workbench 4. The piston rod of the steering cylinder 531 is connected to the connecting plate by bolts. The steering roller 532 is rotatably connected to the connecting plate, and the highest point of the steering roller 532 is higher than the top wall of the connecting plate.

[0049] Reference Figure 2 and Figure 3 , a turning notch 42 and a clearance notch 43 are provided on the guide rail workbench 4. The turning notch 42 is provided on the side of the catheter workbench away from the cutting workbench, and the clearance notch 43 is provided on the side of the catheter workbench close to the cutting workbench; when the guide rail workbench 4 moves to the middle of the workbench 1, the piston rod of the guide rail cylinder 41 is completely retracted into its cylinder body, and the sliding channel 54 moves to a position connected with the fixed channel 2 52 under the guidance of the lower guide plate 552.

[0050] Start the steering cylinder 531, which drives the steering roller 532 to move upward and pass through the steering gap 42. When the steering roller 532 is in contact with the bottom walls of the two extended material channels 511, the steering roller 532 continues to move upward. The two extended material channels 511 make way, and the extended material channel 511 drives the fixed material channel 1 51 and the fixed material channel 2 52 to rotate. At this time, the fixed material channel 1 51 and the fixed material channel 2 52 are close to one end of the cutting workbench and do not move. The two extended material channels 511 drive the other ends of the fixed material channel 1 51 and the fixed material channel 2 52 to rotate upward. Under the action of gravity, the injection molding group located in the fixed material channel 1 51 slides toward the waiting channel 6, and the injection molding group located in the sliding material channel 54 slides toward the fixed material channel 2 52 and finally slides into the waiting channel 6.

[0051] Reference Figure 2 and Figure 3In this embodiment, the waiting channel 6 includes a waiting channel 1 61 and a waiting channel 2 62. A plurality of rotating columns are provided at the bottom of the waiting channel 1 61 and the waiting channel 2 62. The waiting channel 1 61 and the waiting channel 2 62 are arranged in parallel, and the waiting channel 1 61 and the waiting channel 2 62 are both inclinedly arranged on the shearing workbench 2. The height of the waiting channel 1 61 and the height of the waiting channel 2 62 gradually decrease from the guide rail workbench 4 toward the shearing mechanism 3.

[0052] When the fixed material channel 1 51 and the fixed material channel 2 52 are lifted, the end wall of the fixed material channel 1 51 fits against the end wall of the waiting channel 1 61, and the end wall of the fixed material channel 2 52 fits against the end wall of the waiting channel 2 62; the inclined setting of the waiting channel 1 61 and the waiting channel 2 62 and the rotating rotating column allow the injection molded parts to slide under the action of gravity to the end of the waiting channel 1 61 or the waiting channel 2 62 close to the shearing mechanism 3, so as to facilitate the operator to pick up.

[0053] Reference Figure 4 The shearing mechanism 3 includes a shearing knife 33 and a power assembly 34. The power assembly 34 controls the two shearing knives 33 to merge to shear the material on the injection molding group. The power assembly 34 includes a power member 344. The power member 344 is a cylinder in this embodiment. The work frame 1 is located below the shearing workbench 2 and is fixed with a mounting base 21 by bolts. The entire power assembly 34 is installed on the mounting base 21.

[0054] Reference Figure 4 and Figure 5 In this embodiment, there are two power members 344, which are respectively mounted at both ends of the mounting base 21, and the power directions of the power members 344 are set in opposite directions; a power block 343 is threadedly connected to the power member 344, and the two power blocks 343 approach or move away from each other under the action of the power member 344, and each power block 343 is provided with two power inclined holes 3431, which are waist-shaped holes. The two power inclined holes 3431 are symmetrically arranged along the moving direction of the power block 343, and the distance between the two power inclined holes 3431 close to one end of the adjacent power block 343 is greater than the distance between the two power inclined holes 3431 away from one end of the adjacent power block 343.

[0055] A power rod 3432 is inserted into the power inclined hole 3431. One end of the power rod 3432 is located in the power inclined hole 3431, and the power rod 3432 can slide along the length direction of the power inclined hole 3431. The other end of the power rod 3432 is connected to the stabilizing arc block 331. The bottom wall of the stabilizing arc block 331 is in contact with the top wall of the power block 343, and the side wall of the stabilizing arc block 331 is connected to the shear knife 33.

[0056] A power support block 342 is installed on the mounting base 21 , and a power support notch 3421 is provided on the top wall of the power support block 342 . The power support notch 3421 is opened along the movement direction of the power block 343 , and the power block 343 is inserted into the power support notch 3421 and moves therein.

[0057] Reference Figure 5 and Figure 6 , a power mounting block 341 is also installed on the power support block 342 by bolts, and the power mounting block 341 is arranged above the power support block 342. A through hole is provided on the shearing workbench 2 for the power mounting block 341 to pass through, and a power arc hole 3411 is provided on the power mounting block 341. The virtual center of the power arc hole 3411 coincides with the center position of the injection molded part when it is placed on the shearing workbench 2. The two shear knives 33 are slidably arranged in the power arc hole 3411, and the bottom wall of the power mounting block 341 is also provided with a stabilizing arc groove 3412 for the stabilizing arc block 331 to slide; when the two shear knives 33 are separated, the two shear knives 33 are respectively located at both ends of the power arc hole 3411. When the shear knives 33 are to shear the material heel connected to the injection molded part, the two shear knives 33 approach each other along the power arc hole 3411 to cut off the material heel.

[0058] The positioning block 31 is installed on the power mounting block 341, and the outer wall of the positioning block 31 can fit with the inner wall of the injection molded part; a trigger hole 3413 is also provided on the power mounting block 341, and the trigger hole 3413 is located on the side of the positioning block 31 away from the shear knife 33. A trigger rod 32 is slidably provided in the trigger hole 3413, and one end of the trigger rod 32 is exposed on the power mounting block 341, and a waist-shaped hole for making way is provided on the power block 343. A through hole for making way is also provided on the power support block 342. One end of the trigger rod 32 passes through the power block 343 and the power support block 342 and passes through the mounting base plate 21. A press switch 22 is installed on the bottom wall of the mounting base plate 21, and the end of the trigger rod 32 is located at the switch of the press switch 22.

[0059] The injection molded part is sleeved on the positioning block 31. At this time, the material heel is located between the two shear knives 33. The injection molded part is placed on the trigger rod 32. When the operator presses the injection molded part downward, the injection molded part presses the trigger rod 32 downward to press the press switch 22. After the press switch 22 is pressed, the signal is transmitted to the PLC. After the PLC receives the information that the press switch 22 is pressed, the PLC gives a signal to start the power cylinder. The piston rod of the power cylinder extends, and the power rod 3432 moves along the power inclined hole 3431. The two power rods 3432 approach each other, and the power rod 3432 drives the stabilizing arc block 331 to move. The stabilizing arc block 331 drives the shear knife 33 to move along the power arc hole 3411. The two shear knives 33 approach each other to separate the material heel and the injection molded part.

[0060] The implementation principle of the shearing die in Example 1 of the present application is as follows: when the guide rail cylinder 41 moves the guide rail workbench 4 to the top of the work frame 1, the fixed material channel 1 51 and the sliding material channel 54 are in the same straight line, and the manipulator clamps two groups of injection molded parts and places them on the fixed material channel 1 51 and the sliding material channel 54 respectively; when the piston rod of the guide rail cylinder 41 retracts, the guide rail workbench 4 moves down, and in the process of the guide rail workbench 4 moving down, the sliding material channel 54 and the guide wheel 553 first move on the fixed material channel 1 51 and the sliding material channel 54. 1, when the guide wheel 553 contacts the guide surface of the lower guide plate 552, the guide wheel 553 moves from the fixed material channel 1 51 to the fixed material channel 2 52 under the guidance of the guide surface of the lower guide plate 552; when the piston rod of the guide rail cylinder 41 is completely retracted into the cylinder body, the guide rail workbench 4 descends to the designated location. At this time, the guide wheel 553 is at the lowest point of the top wall of the lower guide plate 552, and the sliding channel 54 moves to the fixed material channel 2 52 and is limited by the limit rod 512.

[0061] Start the steering cylinder 531, which drives the steering roller 532 to move up and pass through the steering gap. When the steering roller 532 is in contact with the bottom wall of the two extended material channels 511, the steering roller 532 continues to move up. The two extended material channels 511 make way, and the extended material channel 511 drives the fixed material channel 1 51 and the fixed material channel 2 52 to rotate. At this time, the fixed material channel 1 51 and the fixed material channel 2 52 are close to one end of the cutting workbench and do not move. The two extended material channels 511 drive the fixed material channel The other ends of fixed channel 1 51 and fixed channel 2 52 rotate upward; when fixed channel 1 51 and fixed channel 2 52 are lifted, the end wall of fixed channel 1 51 fits against the end wall of waiting channel 6 1, and the end wall of fixed channel 2 52 fits against the end wall of waiting channel 6 2; the inclined setting of waiting channel 6 1 and waiting channel 6 2 and the rotating rotating column allow the injection molded parts to slide under the action of gravity to the end of waiting channel 6 1 or waiting channel 6 2 close to the shearing mechanism 3, so as to facilitate the operator to pick up.

[0062] The operator puts the injection molded part on the positioning block 31. At this time, the material heel is located between the two shear knives 33, and the injection molded part is placed on the trigger rod 32. When the operator presses the injection molded part downward, the injection molded part presses the trigger rod 32 downward to press the press switch 22. After the press switch 22 is pressed, the signal is transmitted to the PLC. After the PLC receives the information that the press switch 22 is pressed, the PLC gives a signal to start the power cylinder, and the piston rod of the power cylinder extends. The power rod 3432 moves along the power inclined hole 3431, and the two power rods 3432 approach each other. The power rod 3432 drives the stabilizing arc block 331 to move, and the stabilizing arc block 331 drives the shear knife 33 to move along the power arc hole 3411. The two shear knives 33 approach each other to separate the material heel and the injection molded part. The shearing knife 33 is used to shear the injection molded part and the material heel, so that the separation efficiency of the injection molded part and the material heel is higher, and the shearing knife 33 moves and shears along the circumferential direction of the positioning block 31, so that the side wall of the sheared edge of the injection molded part fits the arc edge of the injection molded part itself, thereby improving the flatness of the injection molded part after the injection molded part and the material heel are separated.

[0063] Example 2

[0064] The difference between this embodiment and embodiment 1 is that: Figure 7 A linkage hole 7 is provided on the top wall of the lower guide plate 552. The linkage hole 7 is located at the lowest point of the top wall of the lower guide plate 552. A linkage rod 71 is slidably provided in the linkage hole 7. One end of the linkage rod 71 is exposed from the top wall of the lower guide plate 552, and the height of the linkage rod 71 exposed from the lower guide rod does not exceed the radius of the guide wheel 553. A locking groove 72 is provided on the side wall of the lower guide plate 552. The locking groove 72 is connected to the linkage hole 7. A locking rod 73 is inserted into the locking groove 72. The side wall of the locking rod 73 close to the linkage rod 71 is provided with a locking inclined groove. 731, the bottom of the locking bevel groove 731 rises in the direction away from the steering cylinder 531, the end of the linkage rod 71 is inserted in the locking bevel groove 731, and always abuts against the bottom of the locking bevel groove 731, one end of the locking rod 73 extends out of the lower guide plate 552, and is arranged above the steering cylinder 531 to limit the piston rod of the steering cylinder 531, and a locking spring 74 is provided at one end of the locking rod 73 located in the locking groove 72, and the two ends of the locking spring 74 are connected to the bottom of the locking groove 72 and the end wall of the locking spring 74.

[0065] The implementation principle of a shearing die in Example 2 of the present application is as follows: when the piston rod of the guide rail cylinder 41 retracts, the guide rail workbench 4 moves downward, and in the process of the guide rail workbench 4 moving downward, the sliding channel 54 and the guide wheel 553 are first at the fixed channel 1 51, and when the guide wheel 553 contacts the guide surface of the lower guide plate 552, the guide wheel 553 moves from the fixed channel 1 51 to the fixed channel 2 52 under the guidance of the guide surface of the lower guide plate 552; when the piston rod of the guide rail cylinder 41 is completely retracted into the cylinder body, the guide rail workbench 4 descends to the designated location, and at this time the guide wheel 553 is at the lowest point of the top wall of the lower guide plate 552, and at the same time the sliding channel 54 moves to the fixed channel 2 52 and is limited by the limit rod 512.

[0066] When the locking cam 73 is in the state of being grasped, the locking cam 73 is in the state of being grasped and locked, and the locking cam 73 is in the state of being grasped and locked. By moving the guide wheel 553 to the lowest point of the lower guide plate 552, the sliding channel 54 can be completely aligned with the fixed channel 2 52. At this time, the steering cylinder 531 is lifted, and the injection molding group in the sliding channel 54 can be smoothly moved into the fixed channel 2 52. Therefore, in order to ensure the stability of the steering cylinder 531 during use, when the sliding channel 54 has not moved to the fixed channel 2 52, the locking rod 73 locks the steering cylinder 531, and the guide wheel 553 moves the sliding channel 54 to the fixed channel 2 52 under the guidance of the lower guide plate 552. When the sliding channel 54 moves to the desired position, the locking rod 73 also releases the lock on the steering cylinder 531 at the same time.

[0067] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. Shearing die, characterized by: The invention comprises a work frame (1), a shearing workbench (2) is installed on the work frame (1), a shearing mechanism (3) is installed on the shearing workbench (2), a guide rail workbench (4) is provided on the work frame (1), and a lifting guide rail mechanism (5) is provided on the guide rail workbench (4); a waiting channel (6) is provided on the shearing workbench (2); an injection molded part moves from the lifting guide rail mechanism (5) to the waiting channel (6), and the shearing mechanism (3) shears the injection molded part; the lifting guide rail mechanism (5) comprises a fixed material channel 1 (51), a fixed material channel 2 (52) and a steering assembly (53), the fixed material channel 1 (51) and the fixed material channel 2 (52) are both rotatably mounted on the guide rail workbench (4), and the fixed material channel 1 (51) and the fixed material channel 2 (52) are arranged in parallel, and the fixed material channel 1 (51) and the fixed material channel 2 (52) are connected to the waiting channel (6); the steering assembly (53) is mounted on the working frame (1), and the steering assembly (53) controls the fixed material channel 1 (51) and the fixed material channel 2 (52) to rotate along the connection, so that the fixed material channel 1 (51) and the fixed material channel 2 (52) are tilted to send the injection molded parts into the waiting channel (6); the lifting guide rail The mechanism (5) further comprises a sliding channel (54) and a driving assembly (55), wherein the fixed channel 1 (51) and the fixed channel 2 (52) are both provided with an extended channel (511) at one end away from the waiting channel (6), and a limiting rod (512) is provided on the side of the two extended channels (511) facing away from each other, and the driving assembly (55) drives the sliding channel (54) to move between the two limiting rods (512), and the sliding channel (54) is aligned with the fixed channel 1 (51) or aligned with the fixed channel 2 (52); the driving assembly (55) comprises an upper guide plate (551), a lower guide plate (552), and a lower guide plate (553). The upper guide plate (551) and the lower guide plate (552) are both installed on the working frame (1), and the guide wheel (553) is rotatably installed on the sliding material channel (54). The guide wheel (553) can roll on the upper guide plate (551) or the lower guide plate (552). The upper guide plate (551) guides the sliding material channel (54) to move from the fixed material channel 2 (52) to the fixed material channel 1 (51), and the lower guide plate (552) guides the sliding material channel (54) to move from the fixed material channel 1 (51) to the fixed material channel 2 (52).

2. The shearing die according to claim 1, wherein: The steering assembly (53) comprises a steering cylinder (531) and a steering roller (532). The steering cylinder (531) is mounted on the work frame (1) and is located below the guide rail workbench (4). The steering roller (532) is rotatably connected to the piston rod of the steering cylinder (531). The steering roller (532) is raised and lowered to control the lifting or leveling of one end of the fixed material channel 1 (51) and the fixed material channel 2 (52).

3. The shearing die according to claim 1, wherein: A linkage hole (7) is provided on the top wall of the lower guide plate (552), a linkage rod (71) is slidably provided in the linkage hole (7), a locking groove (72) is provided on the side wall of the lower guide plate (552), a locking rod (73) is slidably provided in the locking groove (72), a locking inclined groove (731) is provided on the side of the locking rod (73) facing the linkage rod (71), one end of the locking rod (73) is inserted into the locking inclined groove (731), one end of the locking rod (73) extends out of the lower guide plate (552) and is provided above the steering assembly (53), a locking spring (74) is provided at one end of the locking rod (73) away from the steering assembly (53), and one end of the locking spring (74) away from the locking rod (73) is fixed on the inner wall of the locking groove (72).

4. The shearing die according to claim 1, wherein: A partition plate (513) is provided at one end of the fixed material channel (51) close to the sliding material channel (54), and the partition plate (513) separates the fixed material channel (51) from the sliding material channel (54).

5. The shearing die according to claim 1, wherein: The shearing mechanism (3) comprises a positioning block (31), a trigger rod (32), two shearing knives (33) and a power assembly (34); the positioning block (31) is mounted on the shearing workbench (2); the trigger rod (32) is slidably mounted on the shearing workbench (2); a mounting base (21) is mounted on the bottom of the shearing workbench (2); a push switch (22) is provided on the mounting base (21); one end of the trigger rod (32) is exposed from the shearing workbench (2), and the other end passes through the shearing workbench (2) and is in contact with the push switch (22); the power assembly (34) drives the two shearing knives (33) to move along the circumference of the positioning block (31).

6. The shearing die according to claim 5, characterized in that: The power assembly (34) includes a power installation block (341), a power support block (342), a power block (343) and a power piece (344). The power piece (344) is installed on the installation base plate (21). The power piece (344) drives the power block (343) to move back and forth. The power support block (342) is installed on the installation base plate (21). A power support notch (3421) is provided on the top wall of the power support block (342). The power support notch (3421) is opened along the movement direction of the power block (343). The power block (343) is inserted into the power support notch (3421) and moves therein. The power block (343) Two power inclined holes (3431) are provided on the power mounting block (341), and the two power inclined holes (3431) are symmetrically arranged along the movement direction of the power block (343). A power rod (3432) is slidably arranged in the power inclined hole (3431). The power mounting block (341) is installed above the power support block (342) and passes through the table surface of the shearing workbench (2). A power arc hole (3411) is provided on the power mounting block (341), and the two shearing knives (33) slide in the power arc hole (3411). A stabilizing arc block (331) is provided on the side of the shearing knife (33) close to the power support block (342), and the stabilizing arc block (331) is connected to the power rod (3432).

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