A mold with automatic material striking device

Abstract

The application relates to the technical field of molds, in particular to a mold with an automatic material striking device, which comprises an upper mold base, a pressing plate, a male die, a pressing device and a female die; the male die is fixedly connected with the upper mold base, and the pressing plate is in sliding fit with the male die; the pressing device comprises a pressing mechanism and a lever mechanism; the pressing mechanism comprises a connecting block, a pushing block and a lifting rod; the upper mold base is provided with an anti-falling groove and a through hole, the through hole is fixedly provided with a sleeve, the male die is provided with a lifting hole, and the bottom end of the male die is provided with a storage groove; the connecting block is located in the anti-falling groove, the top end of the lifting rod is fixedly connected with the connecting block, the bottom end of the lifting rod sequentially penetrates through the anti-falling groove, the sleeve, the lifting hole and the storage groove, and the bottom end of the lifting rod is fixedly connected with the pushing block; an elastic piece is sleeved on the lifting rod; the lifting rod penetrates through the lifting rod, and the male die is in sliding fit with the lifting rod; the lever mechanism is arranged between the upper mold base and the pressing plate, and the lever mechanism is used for driving the connecting block to lift. The application has a protection effect on workpieces.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a mold with an automatic feeding device. Background Technology

[0002] Currently, molds are one of the most important process equipment in industrial production. They are widely used in various manufacturing industries such as casting, forging, stamping, plastics, powder metallurgy, and ceramic products. A mold typically consists of two parts: an upper mold and a lower mold. The upper mold is fixed to the press table or a base plate. During operation, the blank is positioned on the lower mold surface by positioning parts. The press slide moves the upper mold downwards, and under the action of the working parts of the mold (i.e., the punch and die), the blank undergoes separation or plastic deformation, thereby obtaining a product of the desired shape and size. When the upper mold rises, the mold's unloading and ejection device unloads or pushes / ejects the stamped part or sheet metal from the punch and die for the next work cycle. The ejection device is a device that pushes the workpiece or sheet metal out of the mold.

[0003] There are several methods for feeding materials into related molds: using ejector pins with elastic elements to push downwards or using compressed air to blow downwards. The former, due to the presence of elastic elements, can easily deform the workpiece, resulting in inaccurate die-cutting dimensions; the latter has the problem that the blowing cycle is difficult to match with the die-cutting cycle, thus reducing the overall processing efficiency. Summary of the Invention

[0004] To address the problems mentioned in the background art, this application provides a mold with an automatic feeding device.

[0005] The mold with an automatic feeding device provided in this application adopts the following technical solution:

[0006] A mold with an automatic feeding device includes an upper mold base, a pressure plate, a punch, a pressure device, and a die with a feeding hole; the top end of the punch is fixedly connected to the upper mold base, the pressure plate has a guide groove, the punch passes through the guide groove, and the pressure plate slides with the punch.

[0007] The pressing device includes a pressing mechanism, which includes a connecting block, a pushing block, and a lifting rod. The upper die base has an anti-detachment groove, and a through hole is formed within the anti-detachment groove. A sleeve is fixedly installed within the through hole. The punch has a connecting lifting hole and a receiving groove that communicate with each other. The connecting block is located within the anti-detachment groove. One end of the lifting rod is fixedly connected to the connecting block, and the other end of the lifting rod passes sequentially through the anti-detachment groove, the sleeve, the lifting hole, and the receiving groove. The bottom end of the lifting rod is fixedly connected to the pushing block. The pushing block slides into the receiving groove, and the punch slides into the lifting rod. An elastic element is sleeved on the lifting rod, and the elastic element is located between the connecting block and the sleeve.

[0008] The pressing device also includes a lever mechanism, which is disposed between the upper mold base and the pressing plate, and is used to drive the connecting block to rise and fall.

[0009] By adopting the above technical solution, during die cutting, the upper die holder descends, driving the punch, pressure plate, and pressure device to descend. When the lower surface of the pressure plate abuts against the upper surface of the die cavity, the pressure plate stops moving. At this time, the punch, pressure plate, and pusher block are all pressing precisely on the material being cut. Meanwhile, the punch continues to descend. Because the punch passes through and slides into the guide groove, the guide groove increases the stability of the punch's descent. The punch completes the initial stamping of the workpiece during the descent. Then, the punch stops descending, and the moving die holder continues to descend. During this process, the lever mechanism drives the connecting block to continue descending, and the connecting block drives the lifting rod and pusher block to continue descending a certain distance. As the material block descends, it further presses the workpiece, eventually causing it to detach from the die's discharge hole and fall freely. Simultaneously, as the connecting block descends, the distance between it and the sleeve decreases, creating a compressive effect on the elastic element, allowing it to store elastic potential energy. When the injection molding machine drives the upper mold base to rise, the lever mechanism releases the driving force on the connecting block. At this point, the compressed elastic element exerts an upward elastic force on the connecting block, driving it to rise. The connecting block then drives the lifting rod and the pusher block to rise, moving the pusher block into the receiving slot. This facilitates repeated demolding of the workpiece and also protects it.

[0010] Optionally, the lever mechanism includes a locking block, a linkage lever, a pin, and a push rod; the locking block is fixed to the upper mold base, and a rotating groove is provided on the locking block, with the pin fixed inside the rotating groove; one end of the linkage lever is located inside the rotating groove, and the pin passes through the linkage lever, with the linkage lever and the pin rotatably connected; one end of the push rod is fixed to the pressure plate, and a through groove is provided on the upper mold base, with the other end of the push rod passing through the through groove; a limiting groove is provided on the lower surface of the linkage lever near the locking block, and the top end of the push rod abuts against the inner wall of the limiting groove; a rolling bearing is rotatably provided on the end of the linkage lever away from the locking block, with the limiting groove and the rolling bearing located on opposite sides of the pin, and the bottom of the rolling bearing abutting against the upper surface of the connecting block.

[0011] By adopting the above technical solution, a limiting groove is opened on the lower surface of the end of the linkage lever near the locking block, and the top of the push rod abuts against the inner wall of the limiting groove; a rolling bearing is rotatably installed at the end of the linkage lever away from the locking block, the limiting groove and the rolling bearing are respectively located on both sides of the pin shaft, and the bottom of the rolling bearing abuts against the upper surface of the connecting block; during die cutting, the upper die seat descends, and the upper die seat drives the locking block to descend. During the descent of the locking block, the push rod exerts an upward force on the linkage lever, thereby causing the end of the linkage lever located in the rotating groove to rise, and at the same time driving the linkage lever to rotate around the pin shaft, thereby causing the end of the linkage lever near the pressing mechanism to descend. Therefore, during the rotation of the linkage lever, the rolling bearing descends, and when the rolling bearing descends, it exerts a downward force on the pressing mechanism, thereby pushing the pressing mechanism to descend.

[0012] Optionally, the rotating groove has an inclined surface.

[0013] By adopting the above technical solution, the inclined surface ensures that when the linkage lever rotates to an inclined state, the inclined surface further increases the overall volume of the rotating groove, thereby ensuring that the locking block will not obstruct the rotation of the linkage lever during the rotation process.

[0014] Optionally, the end of the linkage lever near the rolling bearing is provided with a rounded corner.

[0015] By adopting the above technical solution, when the rolling bearing pushes the connecting block down, the rounded corners prevent the linkage lever from contacting the connecting block during rotation, while ensuring that only the rolling bearing contacts the connecting block, thus protecting both the connecting block and the linkage lever.

[0016] Optionally, a fixing block is fixedly installed on the top rod, and a bolt is threaded through the fixing block, the bolt being threaded into the pressure plate.

[0017] By adopting the above technical solution, the bolts and pressure plate have a clamping effect on the fixing block, which not only fixes the fixing block to the pressure plate, but also increases the convenience for workers to install and disassemble the fixing block, thereby increasing the convenience for workers to install and disassemble the top rod.

[0018] Optionally, it also includes an adjustment device, which includes a base, a rotating seat, an adjustment frame, a first driving member, and a second driving member. The rotating seat is rotatably connected to the base; the adjustment frame is slidably engaged with the rotating seat; the first driving member is used to drive the adjustment frame to slide in a horizontal direction; the die is slidably engaged with the adjustment frame; the second driving member is used to drive the die to slide in a horizontal direction; the sliding direction of the adjustment frame is perpendicular to the sliding direction of the die.

[0019] By adopting the above technical solution, the rotating seat drives the adjusting frame and the die to rotate during the rotation process; since the sliding direction of the adjusting frame is perpendicular to the sliding direction of the die, the adjusting frame is driven to slide along the first direction by the first driving member, and the die is driven to slide along the second direction by the second driving member, so as to facilitate the adjustment of the position of the die in the horizontal direction, thereby facilitating the alignment of the punch and the blanking hole on the die.

[0020] Optionally, an annular guide rail is fixedly provided on the lower surface of the rotating seat, and an annular groove is provided on the base. The annular guide rail is located in the annular groove and is rotatably connected to the annular groove. A screw is threaded onto the base, and the end of the screw abuts against the annular guide rail.

[0021] By adopting the above technical solution, on the one hand, the annular groove guides the annular guide rail on the rotating seat, increasing the stability of the rotation of the annular guide rail, thereby increasing the stability of the rotation of the rotating seat; on the other hand, when the end of the screw abuts against the outer wall of the annular guide rail, the end of the screw and the inner wall of the annular groove clamp the annular guide rail, thereby fixing the annular guide rail and the rotating seat; thirdly, by rotating the screw, the operator can easily adjust the distance between the end of the screw and the annular guide rail, thus facilitating the operator to rotate the rotating seat at any time.

[0022] Optionally, a knob is fixedly installed on the screw.

[0023] By adopting the above technical solution, workers can rotate the screw by turning the knob, which saves effort.

[0024] Optionally, the base has multiple bolt holes.

[0025] By adopting the above technical solution, the convenience for staff to install and disassemble the base is increased.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. During die cutting, the upper die holder descends, driving the punch, pressure plate, and pressure device to descend as well. When the lower surface of the pressure plate abuts against the upper surface of the die cavity, the pressure plate stops moving. At this point, the punch, pressure plate, and pusher block are all pressing precisely on the workpiece. Meanwhile, the punch continues to descend. Because the punch passes through and slides into the guide groove, the guide groove increases the stability of the punch's descent. During this descent, the punch completes the initial stamping of the workpiece. Then, the punch stops descending, and the moving die holder continues to descend. During this process, the lever mechanism drives the connecting block to continue descending. The connecting block drives the lifting rod and pusher block to descend a further distance. The pusher block continues to descend... During the process, the workpiece is further stamped, eventually causing it to detach from the die's discharge hole and fall freely. Simultaneously, as the connecting block descends, the distance between it and the sleeve decreases, and the connecting block and sleeve exert a squeezing effect on the elastic element, allowing it to store elastic potential energy. When the injection molding machine drives the upper mold base to rise, the lever mechanism releases the driving force on the connecting block. At this time, the compressed elastic element exerts an upward elastic force on the connecting block, thereby driving it to rise. The connecting block then drives the lifting rod and the pusher block to rise, and the pusher block moves into the receiving slot, thus facilitating repeated demolding of the workpiece and protecting it.

[0028] 2. Because a limiting groove is provided on the lower surface of the linkage lever near the locking block, the top of the push rod abuts against the inner wall of the limiting groove; a rolling bearing is rotatably installed at the end of the linkage lever away from the locking block, the limiting groove and the rolling bearing are located on both sides of the pin, and the bottom of the rolling bearing abuts against the upper surface of the connecting block; during die cutting, the upper die base descends, and the upper die base drives the locking block to descend. During the descent of the locking block, the push rod exerts an upward force on the linkage lever, thereby causing the linkage lever at the end of the rotating groove to rise, and at the same time driving the linkage lever to rotate around the pin, thereby causing the end of the linkage lever near the pressing mechanism to descend. Therefore, during the rotation of the linkage lever, the rolling bearing descends, and when the rolling bearing descends, it exerts a downward force on the pressing mechanism, thereby pushing the pressing mechanism to descend;

[0029] 3. The inclined surface ensures that when the linkage lever rotates to the inclined state, the inclined surface further increases the overall volume of the rotation groove, thereby ensuring that the locking block will not obstruct the rotation of the linkage lever during the rotation process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the mold with an automatic feeding device in Embodiment 1 of this application.

[0031] Figure 2This is a half-sectional view of the upper template, clamping plate, and pressure plate in Embodiment 1 of this application.

[0032] Figure 3 This is a schematic diagram of the punch and pressure mechanism in Embodiment 1 of this application.

[0033] Figure 4 This is a half-sectional view of the upper template, clamping plate, and pressure plate from another perspective in Embodiment 1 of this application.

[0034] Figure 5 This is a schematic diagram of the lever mechanism in Embodiment 1 of this application.

[0035] Figure 6 This is a half-sectional view of the lever mechanism in Embodiment 1 of this application.

[0036] Figure 7 This is a schematic diagram of the structure of the mold with an automatic feeding device in Embodiment 2 of this application.

[0037] Figure 8 This is a schematic diagram of the assembly relationship between the base and the rotating seat in Embodiment 2 of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Upper template; 11. Anti-detachment groove; 12. Through hole; 13. Sleeve; 14. Through groove; 15. Mounting groove; 2. Clamping plate; 21. Positioning groove; 3. Pressure plate; 31. Guide groove; 4. Punch; 41. Lifting hole; 42. Storage groove; 5. Pressure mechanism; 51. Connecting block; 52. Pushing block; 53. Lifting rod; 54. Elastic element; 6. Lever mechanism; 61. Locking block; 611. Rotating groove; 612. Inclined surface; 62. Linkage lever; 6 21. Limiting groove; 63. Pin; 64. Ejector rod; 641. Fixing block; 65. Rolling bearing; 7. Die; 71. Material discharge hole; 72. Second slider; 8. Base; 81. Annular groove; 82. Screw; 83. Knob; 84. Bolt hole; 9. Rotary seat; 91. Annular guide rail; 92. First linear guide rail; 10. Adjusting frame; 101. First slider; 102. Second linear guide rail; 20. First driving component; 22. Second driving component. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0041] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0042] Example 1

[0043] This application discloses a mold with an automatic feeding device. (Refer to...) Figure 1 and Figure 2 The mold with an automatic feeding device includes an upper mold base, a pressure plate 3, a punch 4, a pressure device, and a die 7. The upper mold base includes an upper template 1 and a clamping plate 2, with the clamping plate 2 fixed to the lower surface of the upper template 1. A through-hole positioning groove 21 is provided on the clamping plate 2, through which the top end of the punch 4 passes, and the top end of the punch 4 is fixedly connected to the upper template 1. The positioning groove 21 positions the punch 4, increasing the efficiency of punch installation by workers, while the upper template 1 provides load-bearing support for the punch 4. A guide groove 31 is provided on the pressure plate 3, through which the punch 4 passes, and the pressure plate 3 and the punch 4 slide together. The punch 4 guides the pressure plate 3, increasing the stability of the pressure plate 3 during lifting.

[0044] Reference Figure 2 and Figure 3 The pressing device includes a pressing mechanism 5, which includes a connecting block 51, a pushing block 52, and a lifting rod 53. An anti-detachment groove 11 is provided on the upper surface of the upper template 1, and two through holes 12 are provided at the bottom of the groove. A sleeve 13 is fixedly installed in each of the two through holes 12, located between the connecting block 51 and the punch 4, with the bottom end of the sleeve 13 abutting against the top end of the punch 4. Two lifting holes 41 are provided at the top end of the punch 4, and a receiving groove 42 is provided at the bottom end of the punch 4. The bottom ends of the two lifting holes 41 are interconnected with the receiving groove 42. The connecting block 51 is located within the anti-detachment groove 11 and is clearance-fitted with the anti-detachment groove 11. Both lifting rods 53 extend vertically. The top of each lifting rod 53 is fixedly connected to the lower surface of the connecting block 51. The bottom of each lifting rod 53 passes through the anti-detachment groove 11, the sleeve 13, the lifting hole 41, and the receiving groove 42 in sequence. The bottom of each lifting rod 53 is fixedly connected to the pusher block 52. The pusher block 52 and the receiving groove 42 are in sliding engagement. The punch 4 and the lifting rod 53 are in sliding engagement. Each lifting rod 53 is fitted with an elastic element 54, which is located between the connecting block 51 and the sleeve 13. The elastic element 54 can be a spring. The pressing device also includes a lever mechanism 6, which is located between the upper template 1 and the pressing plate 3. The lever mechanism 6 is used to drive the connecting block 51 to rise and fall.

[0045] Continue to refer to Figure 2 and Figure 3 During die cutting, the upper template 1 descends, driving the punch 4, pressure plate 3, and pressure device to descend. When the lower surface of the pressure plate 3 abuts against the upper surface of the die 7, the pressure plate 3 stops moving. At this time, the punch 4 continues to descend. Since the punch 4 passes through the guide groove 31 and slides with it, the guide groove 31 increases the stability of the punch 4's descent. The punch 4 completes the initial stamping of the workpiece during the descent. Then, the moving die holder continues to descend. During this process, the lever mechanism 6 drives the connecting block 51 to continue descending. The connecting block 51 drives the lifting rod 53 and the pusher block 52 to continue descending a certain distance. The pusher block 52 further stamps the workpiece during the descent, ultimately causing the workpiece to detach from the die 7 (in conjunction with...). Figure 1 ( ), which allows for free fall; at the same time, as the connecting block 51 descends, the distance between the connecting block 51 and the sleeve 13 decreases, and the connecting block 51 and the sleeve 13 exert a squeezing effect on the elastic element 54, so that the elastic element 54 stores elastic potential energy; when the upper template 1 rises, the lever mechanism 6 releases the driving effect on the connecting block 51, and the elastic element 54, which is in a compressed state, exerts an upward elastic force on the connecting block 51, thereby driving the connecting block 51 to rise. The connecting block 51 drives the lifting rod 53 and the pusher block 52 to rise, and the pusher block 52 moves into the receiving groove 42, thereby facilitating the repeated demolding action of the workpiece.

[0046] Reference Figure 4 and Figure 5 Specifically, the lever mechanism 6 includes a locking block 61, a linkage lever 62, a pin 63, and a push rod 64. The upper surface of the upper template 1 has an installation groove 15, in which the locking block 61 is fixed, increasing the efficiency of installation. The lower surface of the locking block 61 has a rotating groove 611, in which the pin 63 is located. The pin 63 extends horizontally, and both ends of the pin 63 are fixedly connected to the locking block 61. One end of the linkage lever 62 is located in the rotating groove 611, and the pin 63 passes through the linkage lever 62, rotatably connecting the linkage lever 62 and the pin 63. The rotating groove 611 has an inclined surface 612 (for use with...). Figure 6 The inclined surface 612 ensures that when the linkage lever 62 rotates to an inclined state, the inclined surface 612 further increases the overall volume of the rotation groove 611, thereby ensuring that the locking block 61 will not obstruct the rotation of the linkage lever 62 during the rotation process.

[0047] Continue to refer to Figure 4 and Figure 5The bottom end of the push rod 64 is fixed to the pressure plate 3. Specifically, a fixing block 641 is integrally formed on the side wall of the bottom end of the push rod 64, and the lower surface of the fixing block 641 abuts against the upper surface of the pressure plate 3. A bolt passes through the fixing block 641, and the bolt is threadedly engaged with the pressure plate 3. The bolt and the pressure plate 3 have a clamping effect on the fixing block 641, which not only fixes the fixing block 641 to the pressure plate 3, but also increases the convenience for workers to install and remove the fixing block 641, thereby increasing the convenience for workers to install and remove the push rod 64.

[0048] Reference Figure 4 and Figure 6 The upper template 1 has a through-slot 14, the top of which is connected to the mounting slot 15, and the bottom of which passes through the clamping plate 2. The top of the push rod 64 passes through the through-slot 14, and the lower surface of the linkage lever 62 near the locking block 61 has a limiting groove 621, which is an arc-shaped groove. Correspondingly, the top of the push rod 64 has a rounded corner and abuts against the inner wall of the limiting groove 621. The end of the linkage lever 62 away from the locking block 61 is rotatably equipped with a rolling bearing 65. The limiting groove 621 and the rolling bearing 65 are located on both sides of the pin 63, and the bottom of the rolling bearing 65 abuts against the upper surface of the connecting block 51. Because a limiting groove 621 is provided on the lower surface of the end of the linkage lever 62 near the locking block 61, the top end of the push rod 64 abuts against the inner wall of the limiting groove 621; a rolling bearing 65 is rotatably provided on the end of the linkage lever 62 away from the locking block 61, the limiting groove 621 and the rolling bearing 65 are respectively located on both sides of the pin 63, and the bottom of the rolling bearing 65 abuts against the upper surface of the connecting block 51; during die cutting, the upper template 1 descends, and the upper template 1 drives the locking block 61 to descend. During the descent of the locking block 61, the push rod 64 exerts an upward force on the linkage lever 62, thereby causing the end of the linkage lever 62 located in the rotating groove 611 to rise, and at the same time driving the linkage lever 62 to rotate around the pin 63, thereby causing the end of the linkage lever 62 near the pressing mechanism 5 to descend. Therefore, during the rotation of the linkage lever 62, the rolling bearing 65 is driven to descend, and when the rolling bearing 65 descends, it exerts a downward force on the connecting block 51, thereby pushing the pressing mechanism 5 to descend.

[0049] Reference Figure 5 The linkage lever 62 has a rounded corner at the end near the rolling bearing 65. When the rolling bearing 65 pushes the connecting block 51 down, the rounded corner ensures that the linkage lever 62 will not contact the connecting block 51 during rotation, while ensuring that only the rolling bearing 65 contacts the connecting block 51, thus protecting both the connecting block 51 and the linkage lever 62.

[0050] Example 2

[0051] Reference Figure 7 and Figure 8The difference between Embodiment 2 and Embodiment 1 is that the mold of the automatic feeding device in this embodiment also includes an adjustment device. The adjustment device includes a base 8, a rotating seat 9, an adjustment frame 10, a first driving member 20, and a second driving member 22. The base 8 has multiple bolt holes 84 evenly distributed circumferentially, increasing the convenience for workers to install and disassemble the base 8. Specifically, the rotating seat 9 is rotatably connected to the base 8, and the adjustment frame 10 is slidably engaged with the rotating seat 9. The first driving member 20 is disposed on the rotating seat 9 and is used to drive the adjustment frame 10 to slide horizontally. Specifically, the first driving member 20 can be a pneumatic cylinder or a hydraulic cylinder. The die 7 is slidably engaged with the adjustment frame 10, and the second driving member 22 is disposed on the adjustment frame 10. The second driving member 22 is used to drive the die 7 to slide horizontally. The sliding direction of the adjustment frame 10 is perpendicular to the sliding direction of the die 7. Specifically, the second driving member 22 can also be a pneumatic cylinder or a hydraulic cylinder. During the rotation of the rotating seat 9, the adjusting frame 10 is driven to rotate, which facilitates the rotation of the die 7. Since the sliding direction of the adjusting frame 10 is perpendicular to the sliding direction of the die 7, the adjusting frame 10 is driven to slide along the first direction by the first driving member 20, and the die 7 is driven to slide along the second direction by the second driving member 22. This facilitates the adjustment of the position of the die 7 in the horizontal direction, thereby ensuring the proper alignment of the punch 4 and the die 7.

[0052] Reference Figure 8 Specifically, an annular guide rail 91 is fixedly mounted on the lower surface of the rotating base 9, and an annular groove 81 is formed on the base 8. The annular guide rail 91 is located within the annular groove 81, and the outer wall of the annular guide rail 91 abuts against the inner wall of the annular groove 81. The annular guide rail 91 and the annular groove 81 are rotatably connected. A screw 82 is threaded onto the base 8, and the end of the screw 82 abuts against the annular guide rail 91. A knob 83 is fixedly mounted on the end of the screw 82 away from the annular guide rail 91. Specifically, the knob 83 can be a wing nut. The operator rotates the screw 82 by rotating the knob 83, which saves effort. On the one hand, the annular groove 81 guides the annular guide rail 91 on the rotating seat 9, increasing the stability of the rotation of the annular guide rail 91, thereby increasing the stability of the rotation of the rotating seat 9. On the other hand, when the end of the screw 82 abuts against the outer wall of the annular guide rail 91, the end of the screw 82 and the inner wall of the annular groove 81 clamp the annular guide rail 91, thereby fixing the annular guide rail 91 and the rotating seat 9. Thirdly, by rotating the screw 82, the operator can easily adjust the distance between the end of the screw 82 and the annular guide rail 91, thus facilitating the operator to rotate the rotating seat 9 at any time.

[0053] Reference Figure 7Two first linear guide rails 92 are fixedly mounted on the upper surface of the rotating base 9, and the two first linear guide rails 92 are parallel to each other. Four first sliders 101 are fixedly mounted on the lower surface of the adjusting frame 10, and the four first sliders 101 are distributed in a rectangular array. Each first linear guide rail 92 passes through two first sliders 101 at the same time, and each first slider 101 slides and engages with the first linear guide rail 92, thereby increasing the stability of the adjusting frame 10 sliding in the horizontal direction.

[0054] Continue to refer to Figure 7 Two second linear guide rails 102 are fixedly mounted on the upper surface of the adjusting frame 10. The two second linear guide rails 102 are parallel to each other and perpendicular to the first linear guide rail 92. Four second sliders 72 are fixedly mounted on the lower surface of the die 7, and the four second sliders 72 are distributed in a rectangular array. Each second linear guide rail 102 passes through two second sliders 72 simultaneously, and each second slider 72 slides in cooperation with the second linear guide rail 102, thereby increasing the stability of the die 7 sliding in the horizontal direction.

[0055] Reference Figure 7 and Figure 8 It is worth noting that the center of the base 8, the rotating seat 9 and the adjusting frame 10 are all provided with through cavities. The area of ​​the cavity is larger than the area of ​​the discharge hole 71, so as to ensure that the adjusting device will not block the falling of the workpiece during the demolding process.

[0056] The implementation principle of the above embodiment is as follows: During die cutting, the upper die base descends, driving the punch 4, pressure plate 3, and pressure device to descend. When the lower surface of the pressure plate 3 abuts against the upper surface of the die 7, the punch 4, pressure plate 3, and push block 52 are all pressing on the material being cut. The pressure plate 3 and push rod 64 stop moving, while the punch 4 continues to descend. During the descent, the punch 4 completes the initial stamping of the workpiece. Then, the punch 4 stops descending, and the upper die base drives the locking block 61 and the punch 4 to continue descending. During the descent, the locking block 61 drives the pin 63 to descend. Since the height of the push rod 64 remains unchanged, during the descent, the push rod 64 exerts an upward force on the end of the linkage lever 62 with the limit groove 621, causing the linkage lever 62 to rise at the end of the rotating groove 611. At the same time, it drives the linkage lever 62 to rotate around the pin 63, causing the end of the linkage lever 62 near the pressure mechanism 5 to descend. Therefore, during the rotation, the linkage lever 62... During the process, the rolling bearing 65 is driven to descend, and the rolling bearing 65 exerts a downward force on the connecting block 51. The connecting block 51 drives the lifting rod 53 and the pusher block 52 to continue descending a certain distance. During the descent, the pusher block 52 further presses the workpiece, eventually causing the workpiece to detach from the discharge hole 71 of the die 7 and fall freely. At the same time, as the distance between the connecting block 51 and the sleeve 13 decreases during the descent, the connecting block 51 and the sleeve 13 exert a squeezing effect on the elastic element 54, so that the elastic element 54 stores elastic potential energy. When the injection molding machine drives the upper mold base to rise, the lever mechanism 6 releases the driving effect on the connecting block 51. At this time, the elastic element 54, which is in a compressed state, exerts an upward elastic force on the connecting block 51, thereby driving the connecting block 51 to rise. The connecting block 51 drives the lifting rod 53 and the pusher block 52 to rise, and the pusher block 52 moves into the receiving groove 42, which facilitates the repeated demolding action of the workpiece and also protects the workpiece.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mold with an automatic feeding device, characterized in that: It includes an upper mold base, a pressure plate (3), a punch (4), a pressure device, and a die (7) with a discharge hole (71); the top end of the punch (4) is fixedly connected to the upper mold base, the pressure plate (3) has a guide groove (31), the punch (4) passes through the guide groove (31), and the pressure plate (3) and the punch (4) slide together; The pressing device includes a pressing mechanism (5), which includes a connecting block (51), a pushing block (52), and a lifting rod (53). An anti-detachment groove (11) is provided on the upper mold base, and a through hole (12) is provided in the anti-detachment groove (11). A sleeve (13) is fixedly installed in the through hole (12). A lifting hole (41) and a receiving groove (42) are provided on the punch (4). The connecting block (51) is located within the anti-detachment groove (11), and one end of the lifting rod (53) is connected to the connecting block (51). The lifting rod (53) is fixedly connected, with the other end passing through the anti-detachment groove (11), the sleeve (13), the lifting hole (41), and the storage groove (42) in sequence. The bottom end of the lifting rod (53) is fixedly connected to the pusher block (52), and the pusher block (52) slides with the storage groove (42). The punch (4) slides with the lifting rod (53). An elastic element (54) is sleeved on the lifting rod (53), and the elastic element (54) is located between the connecting block (51) and the sleeve (13). The pressing device also includes a lever mechanism (6), which is disposed between the upper mold base and the pressing plate (3). The lever mechanism (6) is used to drive the connecting block (51) to rise and fall. The lever mechanism (6) includes a locking block (61), a linkage lever (62), a pin (63), and a push rod (64); the locking block (61) is fixed to the upper mold base, and a rotating groove (611) is provided on the locking block (61), and the pin (63) is fixed in the rotating groove (611); one end of the linkage lever (62) is located in the rotating groove (611), and the pin (63) passes through the linkage lever (62), and the linkage lever (62) and the pin (63) are rotatably connected; one end of the push rod (64) is fixed to the pressure plate (3), and the upper mold base has a... A through-slot (14) is provided, and the other end of the push rod (64) passes through the through-slot (14). A limiting groove (621) is provided on the lower surface of the end of the linkage lever (62) near the locking block (61). The top end of the push rod (64) abuts against the inner wall of the limiting groove (621). A rolling bearing (65) is rotatably provided on the end of the linkage lever (62) away from the locking block (61). The limiting groove (621) and the rolling bearing (65) are located on both sides of the pin (63). The bottom of the rolling bearing (65) abuts against the upper surface of the connecting block (51).

2. A mold with an automatic feeding device according to claim 1, characterized in that: An inclined surface (612) is provided inside the rotating groove (611).

3. A mold with an automatic feeding device according to claim 1, characterized in that: The linkage lever (62) has a rounded corner at one end near the rolling bearing (65).

4. A mold with an automatic feeding device according to claim 1, characterized in that: A fixing block (641) is fixedly installed on the top rod (64), and a bolt is threaded through the fixing block (641) and threaded into the pressure plate (3).

5. A mold with an automatic feeding device according to claim 1, characterized in that: It also includes an adjustment device, which includes a base (8), a rotating seat (9), an adjustment frame (10), a first driving member (20), and a second driving member (22). The rotating seat (9) is rotatably connected to the base (8). The adjustment frame (10) is slidably engaged with the rotating seat (9). The first driving member (20) is used to drive the adjustment frame (10) to slide in the horizontal direction. The die (7) is slidably engaged with the adjustment frame (10). The second driving member (22) is used to drive the die (7) to slide in the horizontal direction. The sliding direction of the adjustment frame (10) is perpendicular to the sliding direction of the die (7).

6. A mold with an automatic feeding device according to claim 5, characterized in that: The lower surface of the rotating seat (9) is fixedly provided with an annular guide rail (91), and the base (8) is provided with an annular groove (81). The annular guide rail (91) is located in the annular groove (81), and the annular guide rail (91) is rotatably connected to the annular groove (81). The base (8) is threaded with a screw (82), and the end of the screw (82) abuts against the annular guide rail (91).

7. A mold with an automatic feeding device according to claim 6, characterized in that: A knob (83) is fixedly installed on the screw (82).

8. A mold with an automatic feeding device according to claim 6, characterized in that: The base (8) has multiple bolt holes (84).

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