In-mold auxiliary feeding mechanism

Abstract

The in-mold auxiliary feeding mechanism comprises an upper mold and a lower mold, feeding grooves are formed in the positions, located on the two sides of a material belt, of the lower mold, sliding blocks are slidably connected into the feeding grooves, feeding holes are formed in the sliding blocks, feeding rods are slidably connected into the feeding holes, and jacking pieces used for driving the feeding rods to ascend and descend are arranged in the sliding blocks. The driving part is arranged in the feeding groove and used for driving the sliding block to move back and forth along the feeding groove, the sliding block is driven by the driving part to move back and forth in the feeding groove, the feeding rod is driven to convey a material belt in the moving process of the sliding block, and therefore errors caused by manual control are reduced; the moving distances of the sliding blocks in the feeding groove are the same, and it is guaranteed that the moving distances of the material belt are the same during feeding each time. The feeding device has the effect of improving the feeding precision.

Description

Technical Field

[0001] The present application relates to the technical field of continuous stamping, and in particular to an in-mold auxiliary feeding mechanism. Background Art

[0002] When producing certain automotive parts, it is often necessary to use a continuous die for continuous stamping to obtain automotive parts that meet the requirements. During the continuous stamping process, a feeding device is required to transport the material belt to ensure the smooth progress of the continuous stamping process.

[0003] In the prior art, when performing a continuous stamping process, a unwinding roller is usually used to convey the material strip, and at this time, the conveying and pausing of the material strip need to be manually controlled. When conveying is required, the unwinding roller is manually rotated to convey the material strip between the upper mold and the lower mold. When it moves to the stamping position, the handle on the unwinding roller is stopped from rotating to stop the movement of the material strip. After the stamping is completed, the above operation is repeated.

[0004] However, the processing accuracy requirements for automotive parts are relatively high, but the traditional feeding method is limited by the unstable factors of human control. It cannot ensure that the material belt moves the same distance from the previous step to the next step each time the material is fed. The feeding accuracy is low and there are obvious shortcomings. Utility Model Content

[0005] In order to improve the accuracy of feeding, the present application provides an in-mold auxiliary feeding mechanism.

[0006] The in-mold auxiliary feeding mechanism provided in this application adopts the following technical solution:

[0007] An in-mold auxiliary feeding mechanism comprises an upper mold and a lower mold, wherein the lower mold is provided with feeding troughs on both sides of the material strip, wherein the feeding troughs are slidably connected with sliders, wherein the sliders are provided with feeding holes, wherein the feeding holes are vertically arranged, wherein a feeding rod is slidably connected with the feeding holes, wherein a top support member for driving the feeding rod to be raised and lowered is arranged in the slider, wherein a driving member is arranged in the feeding trough, wherein the driving member is used to drive the slider to reciprocate along the feeding trough.

[0008] By adopting the above technical solution, when feeding is needed, the supporting member drives the feeding rod to extend upward out of the feeding hole and insert it into the traction hole pre-opened in the material belt, and then the driving member pushes the slider, the slider drives the feeding rod to move, and the feeding rod drives the material belt to move. When it moves to the processing position, the supporting member cancels the supporting effect on the feeding rod, the feeding rod retracts downward, and the driving member drives the slider to reset to prepare for the next feeding work. The driving member drives the slider to move back and forth in the feeding trough, and drives the feeding rod to transport the material belt during the movement of the slider. This arrangement reduces the error caused by human control, and the moving distance of the slider in the feeding trough is the same each time, ensuring that the moving distance of the material belt is the same each time feeding, thereby improving the accuracy of feeding.

[0009] Optionally, the supporting member is a guide block slidably arranged inside the sliding block, and the feeding rod is slidably connected to the inclined surface of the guide block. In the initial position, one end of the feeding rod is arranged in the feeding hole, and the other end is connected to the lower end of the inclined surface of the guide block.

[0010] By adopting the above technical solution, under the limitation of the feeding hole, the feeding rod can only move along the feeding hole. Therefore, in the process of the guide block moving away from the driving member, one end of the feeding rod gradually moves from the lower position of the guide block to the higher position, and the other end gradually extends out of the feeding hole. In the process of the guide block moving close to the driving member, one end of the feeding rod moves from the higher position of the guide block to the lower position, and the other end gradually retracts into the feeding hole, thereby realizing the ejection and reset process of the feeding rod.

[0011] Optionally, the driving member is a cylinder, a through hole is provided on the sliding block, and an output shaft of the cylinder is inserted into the through hole and fixedly connected to the guide block.

[0012] By adopting the above technical solution, when feeding, the cylinder pushes the guide block to move. During the movement of the guide block, the feeding rod gradually extends from the feeding hole and is inserted into the traction hole of the material belt. When the cylinder pushes the guide block to abut against the inner wall of the slider, the guide block pushes the slider as a whole to move in the feeding trough, and the slider drives the feeding rod to transmit the material belt. When it moves to the processing position, the cylinder pulls the guide block to reset. During the resetting process, the feeding rod gradually moves toward the direction of the feeding hole. When the feeding rod is separated from the traction hole and completely retracted into the feeding hole, the guide block abuts against the inner wall of the slider, and the guide block drives the slider to reset in the feeding trough.

[0013] Optionally, a sliding groove is formed on the inclined surface of the guide block along the length direction, a sliding block is slidably connected in the sliding groove, and the sliding block is fixedly connected to an end of the feeding rod away from the feeding hole.

[0014] By adopting the above technical solution, under the restriction of the sliding groove and the sliding block, the bottom end of the feed rod can only move along the length direction of the sliding groove, thereby ensuring the stability of the feed rod moving on the guide block, reducing the possibility of tilting of the feed rod, and further ensuring the smooth ejection and retraction process of the feed rod.

[0015] Optionally, abutment blocks are provided at opposite ends of the guide block, the abutment blocks are arc-shaped blocks, and abutment grooves for plugging and cooperating with the abutment blocks are provided on opposite inner side walls of the sliding block.

[0016] By adopting the above technical solution, the setting of the abutment block expands the contact area between the guide block and the slider. At the same time, the arc-shaped design reduces the concentrated stress on the slider when the guide block abuts against the slider, making the driving force on the slider more dispersed, thereby ensuring the smooth movement of the slider in the feed trough.

[0017] Optionally, rolling grooves are provided on the inner side walls opposite to each other of the sliding block, and balls are embedded on the outer side walls opposite to each other of the guiding block, and the balls are rollingly connected in the rolling grooves.

[0018] By adopting the above technical solution, when the guide block moves inside the slider, the ball rolls in the rolling groove, so that the sliding friction between the guide block and the inner wall of the slider is converted into rolling friction, and the friction force on the sliding block is reduced, thereby reducing the possibility of the slider moving when the abutment block is not abutting against the abutment groove, thereby further improving the stability during the feeding process.

[0019] Optionally, a photoelectric sensor is provided on the upper mold, the detection end of the photoelectric sensor is toward the top end of the feeding rod, and the photoelectric sensor is electrically connected to the driving member through a control system.

[0020] By adopting the above technical solution, when the photoelectric sensor detects that the traction hole on the material belt moves to just above the feeding rod, the photoelectric sensor automatically controls the operation of the driving member, thereby improving the degree of automation of the feeding mechanism, reducing the possibility of untimely manual start of the driving member, and improving the continuity of the feeding process.

[0021] Optionally, a pressure sensor is provided on the inner wall of one end of the feeding trough away from the driving member, and the pressure sensor is electrically connected to the driving member through a control system.

[0022] By adopting the above technical solution, when the feeding rod drives the material belt to move to the processing position, the slider is in close contact with the inner wall of the feeding trough. At this time, the pressure sensor on the feeding trough detects the pressure, and the pressure sensor controls the driving member to drive the slider to reset, thereby further improving the degree of automation of the feeding mechanism and reducing the possibility of manual manipulation of the driving member to reset in time.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The present application sets a slider, a feeding rod, a top support member and a driving member, and drives the slider to move back and forth in the feeding trough through the driving member, and drives the feeding rod to convey the material belt during the movement of the slider. Such a setting reduces the error caused by human control, and the movement distance of the slider in the feeding trough is the same each time, ensuring that the movement distance of the material belt is the same each time feeding, thereby improving the accuracy of feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of this application.

[0026] Figure 2 It is a cross-sectional view of the feeding trough in the embodiment of the present application.

[0027] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 It is a cross-sectional view of a slider in an embodiment of the present application.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. upper mold; 101. groove; 2. lower mold; 3. material belt; 31. traction hole; 4. feeding trough; 5. slider; 51. feeding hole; 52. through hole; 53. abutment groove; 6. feeding rod; 7. supporting member; 71. guide block; 8. driving member; 81. cylinder; 9. sliding groove; 91. sliding block; 10. abutment block; 11. rolling groove; 111. ball; 12. photoelectric sensor; 13. pressure sensor. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The embodiment of the present application discloses an in-mold auxiliary feeding mechanism.

[0032] Reference Figure 1 An in-mold auxiliary feeding mechanism includes an upper mold 1 and a lower mold 2, a material strip 3 is placed between the upper mold 1 and the lower mold 2, and a plurality of traction holes 31 are evenly and equidistantly opened at opposite ends of the material strip 3.

[0033] Before stamping, the worker places the material strip 3 between the upper die 1 and the lower die 2 .

[0034] Reference Figure 1 and Figure 2The lower mold 2 is provided with feeding troughs 4 on both sides of the material belt 3, and a slider 5 is slidably connected in each feeding trough 4. A feeding hole 51 is provided on the slider 5, and the feeding hole 51 is vertically arranged. A feeding rod 6 is slidably connected in the feeding hole 51. A top support member 7 for driving the feeding rod 6 to vertically rise and fall in the feeding hole 51 is provided in the sliding block 91. A driving member 8 is fixedly installed at one end of the feeding trough 4, and the driving member 8 is used to drive the slider 5 to reciprocate along the length direction of the feeding trough 4. A groove 101 for inserting the feeding rod 6 is provided on the upper mold 1.

[0035] Reference Figure 2 and Figure 3 The slider 5 is a hollow shell, and the top support member 7 is a guide block 71 slidably connected to the bottom of the slider 5. The cross-section of the guide block 71 is triangular. The height of the guide block 71 close to one end of the driving member 8 is greater than the height of the other end. A sliding groove 9 is provided on the inclined surface of the guide block 71 along the length direction. A sliding block 91 is slidably connected in the sliding groove 9. The sliding block 91 is fixedly connected to the bottom end of the feeding rod 6. In the initial position, one end of the feeding rod 6 is arranged in the feeding hole 51, and the other end is slidably connected to the bottom end of the sliding groove 9 through the sliding block 91. The driving member 8 is a cylinder 81 fixedly installed in the feeding trough 4. A through hole 52 is provided on the slider 5. The output shaft of the cylinder 81 is inserted into the through hole 52 and extends to the inside of the slider 5 and is fixedly connected to the guide block 71.

[0036] Reference Figure 2 and Figure 3 When feeding, the cylinder 81 pushes the guide block 71 to move along the inside of the slider 5. During the movement of the guide block 71 away from the cylinder 81, one end of the feeding rod 6 gradually moves from the lower position of the inclined surface of the guide block 71 to the higher position, and the other end gradually extends out of the feeding hole 51 and is inserted into the traction hole 31. When the end of the guide block 71 away from the cylinder 81 abuts against the inner wall of the slider 5, one end of the feeding rod 6 extends out of the traction hole 31 and is inserted into the groove 101. At this time, the cylinder 81 continues to push the guide block 71 to move, and the guide block 71 drives the slider 5 to move inside the feeding trough 4. The movement of the slider 5 drives the feeding rod 6 to push the material belt 3 to move. When the slider 5 moves to the end of the feeding trough 4, the material belt 3 is brought to the processing position.

[0037] Then, the control cylinder 81 drives the guide block 71 to reset. In the process of the guide block 71 moving close to the cylinder 81, the feeding rod 6 gradually moves toward the feeding hole 51. When the feeding rod 6 is separated from the traction hole 31 and completely retracted into the feeding hole 51, the guide block 71 abuts against the inner wall of the slider 5. The guide block 71 drives the slider 5 to move and gradually approaches the cylinder 81. At this time, the slider 5 moves to the initial position to prepare for the next feeding operation. The entire feeding process drives the feeding rod 6 to move by the movement of the slider 5, ensuring that the movement distance of the slider 5 in the feeding trough 4 is the same each time, thereby ensuring that the movement distance of the material belt 3 is the same each time feeding, thereby improving the feeding accuracy.

[0038] Reference Figure 2 , Figure 3 and Figure 4 The two opposite ends of the guide block 71 are fixedly connected with abutment blocks 10, and the opposite inner side walls of the slider 5 are provided with abutment grooves 53 corresponding to the abutment blocks 10. The cross-sections of the abutment blocks 10 and the abutment grooves 53 are both arc-shaped. When the abutment block 10 at the end away from the cylinder 81 is inserted into the abutment groove 53, the feeding rod 6 extends out of the feeding hole 51 and is inserted into the traction hole 31. The guide block 71 pushes the slider 5 to move in the direction away from the cylinder 81. When the abutment block 10 at the end close to the cylinder 81 is inserted into the abutment groove 53, the feeding rod 6 disengages from the traction hole 31 and retracts into the abutment groove 53, and the guide block 71 pushes the slider 5 to reset.

[0039] The setting of the abutment block 10 expands the contact area between the guide block 71 and the slider 5. At the same time, the arc-shaped design reduces the concentrated stress on the slider 5 when the guide block 71 abuts against the slider 5, making the driving force on the slider 5 more dispersed, thereby ensuring the smooth movement of the slider 5 in the feeding trough 4.

[0040] Reference Figure 2 , Figure 3 and Figure 4 The sliding block 5 has a rolling groove 11 on its inner side wall relative to the sliding block 5 , and a ball 111 is embedded on its outer side wall relative to the guiding block 71 , and the ball 111 is connected in a rolling manner in the rolling groove 11 .

[0041] When the guide block 71 moves inside the slider 5, the ball 111 rolls in the rolling groove 11, so that the sliding friction between the guide block 71 and the inner wall of the slider 5 is converted into rolling friction. The friction force on the sliding block 91 is reduced, thereby reducing the possibility of the slider 5 moving when the abutment block 10 is not in abutment with the abutment groove 53, thereby further improving the stability during the feeding process.

[0042] Reference Figure 2 , Figure 3 and Figure 4In order to improve the degree of automation of the feeding process, a photoelectric sensor 12 is fixedly installed in the groove 101. The detection position of the photoelectric sensor 12 is opposite to the feeding rod 6. A pressure sensor 13 is fixedly installed on the inner wall of the feeding trough 4 away from the end of the cylinder 81. The photoelectric sensor 12 and the pressure sensor 13 are electrically connected to the cylinder 81 through the control system.

[0043] The implementation principle of an in-mold auxiliary feeding mechanism in an embodiment of the present application is as follows: during feeding, when the traction hole 31 moves to the top of the feeding rod 6, the photoelectric sensor 12 controls the cylinder 81 to start, and the cylinder 81 pushes the guide block 71 to move. During the movement of the guide block 71 inside the slider 5, the feeding rod 6 gradually extends into the traction hole 31. When the abutment block 10 on the guide block 71 away from the cylinder 81 abuts in the abutment groove 53, the guide block 71 starts to push the slider 5 to move. During the movement of the slider 5, the slider 5 drives the feeding rod 6 to push the material belt 3 to move. When the slider 5 moves to the end of the feeding groove 4, the material belt 3 is brought to the processing position.

[0044] At the same time, the pressure sensor 13 controls the cylinder 81 to pull the guide block 71 to reset. In the process of the guide block 71 moving close to the cylinder 81, the feeding rod 6 gradually moves toward the feeding hole 51. When the feeding rod 6 is disengaged from the traction hole 31 and completely retracted into the feeding hole 51, the guide block 71 abuts against the inner wall of the slider 5. The guide block 71 drives the slider 5 to move and gradually approaches the cylinder 81. At this time, the slider 5 moves to the initial position to prepare for the next feeding operation. The entire feeding process drives the feeding rod 6 to move by the movement of the slider 5, ensuring that the moving distance of the slider 5 in the feeding trough 4 is the same each time, thereby ensuring that the moving distance of the material belt 3 is the same each time feeding, thereby improving the feeding accuracy.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An in-mold auxiliary feeding mechanism, comprising an upper mold (1) and a lower mold (2), characterized in that: The lower mold (2) is provided with a feeding trough (4) on both sides of the material belt (3), and a slider (5) is slidably connected in the feeding trough (4). A feeding hole (51) is provided on the slider (5), and the feeding hole (51) is vertically arranged. A feeding rod (6) is slidably connected in the feeding hole (51), and a supporting member (7) for driving the feeding rod (6) to rise and fall is arranged in the slider (5). A driving member (8) is arranged in the feeding trough (4), and the driving member (8) is used to drive the slider (5) to move back and forth along the feeding trough (4).

2. The in-mold auxiliary feeding mechanism according to claim 1, characterized in that: The supporting member (7) is a guide block (71) slidably arranged inside the sliding block (5), and the feeding rod (6) is slidably connected to the inclined surface of the guide block (71). In the initial position, one end of the feeding rod (6) is arranged in the feeding hole (51), and the other end is connected to the lower end of the inclined surface of the guide block (71).

3. The in-mold auxiliary feeding mechanism according to claim 2, characterized in that: The driving member (8) is a cylinder (81), a through hole (52) is provided on the slider (5), and an output shaft of the cylinder (81) is inserted into the through hole (52) and fixedly connected to the guide block (71).

4. The in-mold auxiliary feeding mechanism according to claim 3, characterized in that: The inclined surface of the guide block (71) is provided with a sliding groove (9) along the length direction, and a sliding block (91) is slidably connected in the sliding groove (9), and the sliding block (91) is fixedly connected to an end of the feeding rod (6) away from the feeding hole (51).

5. The in-mold auxiliary feeding mechanism according to claim 4, characterized in that: The guide block (71) is provided with abutment blocks (10) at both opposite ends. The abutment blocks (10) are arc-shaped blocks. The opposite inner side walls of the sliding block (5) are provided with abutment grooves (53) that are plugged and matched with the abutment blocks (10).

6. The in-mold auxiliary feeding mechanism according to claim 4, characterized in that: The opposite inner side walls of the sliding block (5) are provided with rolling grooves (11), and the opposite outer side walls of the guiding block (71) are provided with balls (111), and the balls (111) are rollingly connected in the rolling grooves (11).

7. The in-mold auxiliary feeding mechanism according to claim 1, characterized in that: A photoelectric sensor (12) is provided on the upper die, the detection end of the photoelectric sensor (12) faces the top end of the feeding rod (6), and the photoelectric sensor (12) is electrically connected to the driving member (8) through a control system.

8. The in-mold auxiliary feeding mechanism according to claim 1, characterized in that: A pressure sensor (13) is provided on the inner side wall of one end of the feeding trough (4) away from the driving member (8), and the pressure sensor (13) is electrically connected to the driving member (8) through a control system.

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