An automatic in-mold feeding structure for continuous molds

Abstract

This utility model discloses an automatic in-mold feeding structure for a continuous mold, including an upper mold base and a lower mold base. The upper mold base has an upper mold insert at its bottom, and the lower mold base has a lower mold slider and a lower mold mounting base at its top. The lower mold mounting base has a through-slot penetrating its body. A drive block is fixedly connected to the upper part of the lower mold slider, and the drive block passes through the through-slot. When the mold is closed, the upper mold insert moves downward, pushing the lower mold slider horizontally forward, causing the drive block to slide within the through-slot, so that the pusher component at the top of the drive block pushes the material placed on the lower mold mounting base. This utility model provides an automatic in-mold feeding structure for a continuous mold, realizing purely mechanical linkage feeding within the mold. The upper mold insert directly pushes the lower mold slider horizontally forward, and the action of pushing the material is transmitted through the drive block and pusher block. The drive block slides within the through-slot, and the through-slot itself provides precise guidance for the movement trajectory of the drive block, thereby ensuring a stable and highly repeatable movement path for the pusher block to push the material.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, specifically to an automatic feeding structure inside a continuous mold. Background Technology

[0002] In continuous stamping dies, efficient and precise material feeding directly impacts production efficiency and product quality. Traditional feeding mechanisms typically rely on an external independent drive source in conjunction with a transmission mechanism to push materials, which has the following significant drawbacks: 1. High structural complexity and cost: It requires additional drive units and control systems, which occupy external space of the mold, increasing equipment costs and maintenance difficulty; 2. Energy consumption and stability issues: The drive source continuously consumes energy and is prone to failure in the high-temperature and high-frequency impact stamping environment, resulting in insufficient reliability; 3. Limited motion accuracy: The synchronization between the independent drive unit and the mold movement is difficult to control precisely, which can easily lead to deviations in the feeding position and affect the subsequent stamping accuracy; 4. Space constraints: Independent drive units need to be installed outside the mold, which limits the compactness of the mold structure, especially for small workpieces or production lines with limited space.

[0003] Therefore, there is an urgent need for an in-mold feeding solution that is structurally simplified, has high motion precision, and is suitable for high-speed continuous production. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic feeding structure within a continuous die. The feeding action is directly triggered by the opening and closing of the die, enabling precise synchronization between the feeding action and the main stamping stroke. This also improves the structural compactness, motion accuracy, and long-term operational reliability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An automatic in-mold feeding structure for a continuous die includes an upper die base and a lower die base. The upper die base has an upper die insert block at its bottom, and the lower die base has a lower die slider and a lower die mounting base at its top. The lower die mounting base has a through groove that penetrates its body. A driving block is fixedly connected to the upper part of the lower die slider, and the driving block passes through the through groove. When the die is closed, the upper die insert block moves downward and pushes the lower die slider forward horizontally, causing the driving block to slide in the through groove, so that the pushing component at the top of the driving block pushes the material set on the lower die mounting base.

[0006] Furthermore, the pushing component includes a push block rotatably connected to the top of the drive block, and a ejector pin disposed inside the drive block; one end of the ejector pin is connected to an external drive mechanism, and the other end abuts against the bottom of the push block, for lifting the push block so that it extends out of the through groove.

[0007] Furthermore, the upper mold base and the lower mold base are respectively provided with guide pillars and guide sleeves on their opposite surfaces, and the guide pillars and guide sleeves cooperate with each other.

[0008] Furthermore, the lower mold base has an installation groove on its top, and the lower mold slider and the lower mold mounting base are arranged in a cross shape in the installation groove; the lower mold mounting base has a clearance groove at the middle position of its bottom, and the clearance groove corresponds to the movement path of the lower mold slider.

[0009] Furthermore, the lower end face of the upper mold insert is provided with a first inclined surface.

[0010] Furthermore, it also includes a wear-resistant plate, a wear-resistant block, a pressure block, and a reset block; the wear-resistant plate is fixed to the bottom of the lower mold slider; the wear-resistant block is disposed on the rear side of the lower mold slider, and its upper end surface is provided with a second inclined surface that slides in cooperation with the first inclined surface; the pressure block is fixed in the mounting groove, and its side facing the lower mold slider is provided with a stop; the reset block has an L-shaped structure and is disposed on the side of the lower mold slider.

[0011] Furthermore, the upper mold base is equipped with a nitrogen push rod and a nitrogen pipe; one end of the nitrogen push rod abuts against the lower mold slider, and the other end is connected to the nitrogen pipe embedded in the lower mold base, so as to drive the lower mold slider to reset by nitrogen pressure.

[0012] Compared with existing technologies, the technical solution of this patent has the following advantages: 1. Achieving purely mechanical in-mold feeding, the lower mold slider is directly pushed forward horizontally by the downward movement of the upper mold insert block, and the material is pushed through the drive block and pusher block. This simplifies the overall structure and reduces cost and energy consumption. The drive block slides within a through groove, which itself provides precise guidance for the drive block's movement trajectory, thus ensuring a stable and highly repeatable material-pushing path for the pusher block.

[0013] 2. The lower mold slider and the lower mold mounting base are arranged in a cross shape within the mounting slot, a layout that efficiently utilizes space. The clearance slot provides unobstructed space for the horizontal movement of the lower mold slider, avoiding structural interference between the slider and the bottom of the mounting base, ensuring smooth and unimpeded slider movement.

[0014] 3. The design of the first inclined surface at the lower end of the upper die insert allows the vertical downward motion of the upper die to be smoothly and efficiently converted into a force that pushes the lower die slider to move horizontally. In this embodiment, the lower die slider can also be designed with an inclined surface that slides in conjunction with the first inclined surface, but in order to reduce the wear on the upper die insert, a wear-resistant block that slides in conjunction with the upper die insert is specially designed on the lower die slider.

[0015] 4. Wear-resistant plates are installed at the bottom of the lower die slide and wear-resistant blocks are installed on the rear side of the lower die slide. These are specifically designed to reinforce and protect the critical contact surfaces in the moving parts that bear friction, greatly reducing wear and extending the service life of the core moving components. The stop of the pressure block acts as a hard limit on the movement of the lower die slide, preventing the lower die slide from jumping.

[0016] 5. A nitrogen push rod and nitrogen pipe system are used, utilizing nitrogen pressure as a power source to drive the lower mold slide to reset. Compared to traditional spring reset, nitrogen pressure is more stable and has a faster response, making it especially suitable for high-speed continuous operation. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the automatic feeding structure inside the continuous die. Figure 2 The diagram shows a three-dimensional structural schematic of an automatic feeding structure (equipped with materials) inside a continuous die. Figure 3 The diagram shown is a cross-sectional view of the automatic feeding structure (equipped with materials) inside a continuous die. Figure 4 The diagram shown is a cross-sectional view of the automatic feeding structure (equipped with materials) inside a continuous die. Figure 5 The diagram shown is a three-dimensional structural schematic of the automatic feeding structure inside the continuous die. Figure 6 As shown Figure 5 A magnified view of a portion of the image; Figure 7 The diagram shows a three-dimensional structural schematic of an automatic feeding structure (equipped with materials) inside a continuous die. Figure 8 The diagram shown is a three-dimensional structural schematic of the automatic feeding structure inside the continuous mold (in the mold-closed state). Figure 9 The diagram shown is a side view of the automatic feeding structure inside the continuous mold (in the mold-closed state).

[0018] In the diagram: 1. Upper mold base; 2. Lower mold base; 3. Upper mold insert block; 4. Lower mold mounting base; 6. Drive block; 7. Guide post; 8. Guide sleeve; 9. Wear-resistant plate; 10. Wear-resistant block; 11. Pressure block; 12. Reset block; 13. Nitrogen push rod; 14. Material; 201. Mounting groove; 301. First inclined surface; 501. Through groove; 502. Alternating groove; 601. Push block; 1001. Second inclined surface; 1101. Stop. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] See Figure 1-9 As shown, this embodiment provides an automatic feeding structure for a continuous mold, including an upper mold base 1 and a lower mold base 2. The upper mold base 1 has an upper mold insert 3 at its bottom, and the lower mold base 2 has a lower mold slider 4 and a lower mold mounting base 5 at its top. The lower mold mounting base 5 has a through groove 501 that penetrates its body. A driving block 6 is fixedly connected to the upper part of the lower mold slider 4, and the driving block 6 passes through the through groove 501. When the mold is closed, the upper mold insert 3 moves downward and pushes the lower mold slider 4 to move horizontally forward, causing the driving block 6 to slide in the through groove 501, so that the pushing component at the top of the driving block 6 pushes the material 14 set on the lower mold mounting base 5. The pushing component includes a push block 601 rotatably connected to the top of the driving block 6, and an ejector pin 602 located inside the driving block 6. One end of the ejector pin 602 is connected to an external driving mechanism, and the other end abuts against the bottom of the push block 601, used to lift the push block 601 so that it extends out of the through groove 501.

[0021] The continuous die in-mold automatic feeding structure achieves purely mechanical in-mold feeding. The upper die insert 3 directly pushes the lower die slider 4 horizontally forward via its downward movement, and the motion is transmitted through the drive block 6 and pusher block 601 to push the material 14. This simplifies the overall structure and reduces cost and energy consumption. The drive block 6 slides within the through groove 501, which itself provides precise guidance for the movement trajectory of the drive block 6, thus ensuring a stable and highly repeatable movement path for the pusher block 601 to push the material 14.

[0022] The upper die holder 1 and the lower die holder 2 are respectively provided with guide pillars 7 and guide sleeves 8 on their opposite surfaces, and the guide pillars 7 and guide sleeves 8 cooperate with each other. The cooperation between the guide pillars 7 and guide sleeves 8 ensures that the upper die holder 1 and the lower die holder 2 maintain precise alignment during the opening and closing of the die. This is not only crucial to the lifespan and stamping accuracy of the die itself, but also provides a basic guarantee for the upper die insert 3 to act accurately and stably on the lower die slide 4, indirectly ensuring the accuracy and reliability of the feeding action.

[0023] The lower mold base 2 has a mounting groove 201 on its top. The lower mold slider 4 and the lower mold mounting base 5 are arranged in a cross shape within the mounting groove 201. A clearance groove 502 is located in the middle of the bottom of the lower mold mounting base 5, and the clearance groove 502 corresponds to the movement path of the lower mold slider 4. The lower mold slider 4 and the lower mold mounting base 5 are arranged in a cross shape within the mounting groove 201, a layout that efficiently utilizes space. The clearance groove 502 provides unobstructed space for the horizontal movement of the lower mold slider 4, avoiding interference between the slider and the structure at the bottom of the mounting base, ensuring smooth and unimpeded slider movement.

[0024] The lower end face of the upper die insert 3 is provided with a first inclined surface 301. The design of the first inclined surface 301 at the lower end of the upper die insert 3 allows the vertical downward movement of the upper die to be smoothly and efficiently converted into a force that pushes the lower die slider 4 to move horizontally. In this embodiment, the lower die slider 4 can also be designed with an inclined surface that slides in cooperation with the first inclined surface 301. However, in order to reduce the wear on the upper die insert, a wear-resistant block 10 that slides in cooperation with the upper die insert 3 is specially designed on the lower die slider 4.

[0025] The automatic feeding structure within this continuous die also includes a wear-resistant plate 9, a wear-resistant block 10, a pressure block 11, and a reset block 12. The wear-resistant plate 9 is fixed to the bottom of the lower die slide 4. The wear-resistant block 10 is located on the rear side of the lower die slide 4, and its upper end surface has a second inclined surface 1001 that slides in cooperation with the first inclined surface 301. The pressure block 11 is fixed in the mounting groove 201, and its side facing the lower die slide 4 has a stop 1101. The reset block 12 has an L-shaped structure and is located on the side of the lower die slide 4. By setting the wear-resistant plate 9 at the bottom of the lower die slide 4 and the wear-resistant block 10 on the rear side of the lower die slide 4, the critical contact surfaces of the moving parts that are subject to friction are specifically reinforced and protected, greatly reducing wear and extending the service life of the core moving parts. The stop 1101 of the pressure block 11 serves as a hard limit for the movement of the lower die slide 4, preventing the lower die slide 4 from jumping.

[0026] The upper mold base 1 is equipped with a nitrogen push rod 13 and a nitrogen pipe. One end of the nitrogen push rod 13 abuts against the lower mold slider 4, and the other end is connected to the nitrogen pipe embedded in the lower mold base 2. The nitrogen pressure drives the lower mold slider 4 to reset. By using the nitrogen push rod 13 and the nitrogen system, the nitrogen pressure is used as the power source to drive the lower mold slider 4 to reset. Compared with the traditional spring reset, the nitrogen pressure is more stable and the response is faster, which is especially suitable for high-speed continuous operation. This ensures that the slider can quickly and stably return to the initial position after the mold is opened, preparing for the next feeding.

[0027] Workflow steps: Mold closing and feeding stage: The upper mold base 1 moves downward, and the guide post 7 inserts into the guide sleeve 8 to ensure mold closing alignment accuracy; the first inclined surface 301 of the upper mold insert block 3 presses against the second inclined surface 1001 of the wear-resistant block 10, pushing the lower mold slider 4 to move horizontally forward, simultaneously driving the drive block 6 to slide within the through groove 501; at the same time, the external drive mechanism transmits the ejector pin 602 to lift the push block 601, causing the push block 601 to extend outside the through groove 501, and the drive block 6 drives the push block 601 to push the material 14 on the lower mold mounting base 5 forward. From the attached... Figure 2 Appendix Figure 4 Appendix Figure 8 To be continued Figure 9 The material 14 is pushed forward as shown. It should be noted that the surface of the material 14 is designed with an opening corresponding to the through groove 501 of the lower mold mounting base 5, so that the push block 601 can push and move it.

[0028] Mold opening and reset stage: The upper mold base 1 moves upward, and the upper mold insert 3 disengages from the wear-resistant block 10; the nitrogen push rod 13 is driven by the pressure of the nitrogen pipe, pushing the lower mold slider 4 to reset backward along the mounting groove 201; the reset block 12 assists the lower mold slider 4 to stably retract to the initial position, and the external drive mechanism returns to its original position, causing the ejector pin 602 to move downward. This external drive mechanism can be the nitrogen transmission system that drives the nitrogen push rod 13 as described above. The push block 601 naturally rotates downward under the loss of pushing force and retracts into the through groove 501, extending out of the through groove 501 again when pushing the next material. The above steps are repeated to feed a whole row of materials 14 into the mold sequentially.

Claims

1. A continuous die in-mold automatic feeding structure comprising an upper die seat (1) and a lower die seat (2), characterized in that, The upper mold base (1) is provided with an upper mold insert (3) at the bottom, and the lower mold base (2) is provided with a lower mold slider (4) and a lower mold mounting base (5) at the top. The lower mold mounting base (5) is provided with a through groove (501) that runs through its body. The upper part of the lower mold slider (4) is fixedly connected with a driving block (6), and the driving block (6) passes through the through groove (501). When the mold is closed, the upper mold insert (3) moves downward to push the lower mold slider (4) to move horizontally forward, and drives the driving block (6) to slide in the through groove (501), so that the pushing component at the top of the driving block (6) pushes the material set on the lower mold mounting base (5).

2. The in-mold automatic feeding structure of a progressive die according to claim 1, wherein The pushing component includes a push block (601) rotatably connected to the top of the drive block (6) and a push pin (602) disposed inside the drive block (6); one end of the push pin (602) is connected to an external drive mechanism, and the other end abuts against the bottom of the push block (601) to lift the push block (601) so that it extends out of the through groove (501).

3. The in-mold automatic feeding structure of a progressive die according to claim 1, wherein The upper mold base (1) and the lower mold base (2) are respectively provided with guide posts (7) and guide sleeves (8), and the guide posts (7) and guide sleeves (8) cooperate with each other.

4. The in-mold automatic feeding structure of a progressive die according to claim 1, wherein The lower mold base (2) has an installation groove (201) on its top. The lower mold slider (4) and the lower mold mounting base (5) are arranged in a cross shape in the installation groove (201). The lower mold mounting base (5) has a clearance groove (502) at the bottom center. The clearance groove (502) corresponds to the movement path of the lower mold slider (4).

5. The in-mold trim structure of claim 1, wherein, The lower end face of the upper mold insert (3) is provided with a first inclined surface (301).

6. The in-mold trim structure of any of claims 1 to 5, wherein, It also includes a wear-resistant plate (9), a wear-resistant block (10), a pressure block (11), and a reset block (12); the wear-resistant plate (9) is fixed to the bottom of the lower mold slider (4); the wear-resistant block (10) is located on the rear side of the lower mold slider (4), and its upper end surface is provided with a second inclined surface (1001), which slides in cooperation with the first inclined surface (301); the pressure block (11) is fixed in the mounting groove (201), and its side facing the lower mold slider (4) is provided with a stop (1101); the reset block (12) has an L-shaped structure and is located on the side of the lower mold slider (4).

7. The in-mold trim structure of claim 6, wherein, The upper mold base (1) is provided with a nitrogen push rod (13) and a nitrogen pipe; one end of the nitrogen push rod (13) abuts against the lower mold slider (4), and the other end is connected to the nitrogen pipe embedded in the lower mold base (2), and the lower mold slider (4) is reset by nitrogen pressure.

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