A laminated die

Abstract

The application provides a laminated mold, which comprises an upper movable mold, a middle fixed mold and a lower movable mold arranged in sequence, a fixed mold gear is rotationally connected to the outer wall of the middle fixed mold, an upper rack and a lower rack are arranged on the left and right sides of the fixed mold gear respectively, a time delay mechanism is arranged between the lower rack and the middle fixed mold, the time delay mechanism comprises a time delay base, a time delay support seat and a support spring, when the mold is opened, the upper movable mold is first separated from the middle fixed mold, in this process, the upper movable mold drives the fixed mold gear to rotate through the upper rack, the fixed mold gear drives the time delay support seat to move to one side of the upper rack through a plurality of transmission gears when rotating, at the same time, the time delay support seat drives the time delay base to move to one side of the upper rack through a guide column, when the lower rack on the time delay support seat is engaged with the fixed mold gear, the fixed mold gear drives the lower movable mold to move through the lower rack, so that the lower movable mold is separated from the middle fixed mold.

Description

Technical Field

[0001] This invention relates to molds, and more particularly to a stacking mold. Background Technology

[0002] Currently, Chinese patent CN113103522B discloses a double-layer hot runner mold for turnover boxes, comprising an upper moving mold, an intermediate fixed mold, and a lower moving mold arranged sequentially. An upper mold cavity is provided at the top of the intermediate fixed mold near the upper moving mold, and a lower mold cavity is provided at the middle part of the intermediate fixed mold near the lower moving mold. Upper and lower core inserts are respectively provided in the upper and lower mold cavities for molding the turnover box plastic parts. A fixed template gear is installed on the intermediate fixed mold, an upper rack meshing with the fixed template gear is installed on the upper moving mold, and a lower rack meshing with the fixed template gear is installed on the lower moving mold. Guide blocks are provided on both sides of the upper and lower racks for guidance. The upper moving mold is also connected to the intermediate fixed mold via a first synchronous screw, and the lower moving mold is also connected to the intermediate fixed mold via a second synchronous screw. However, in the aforementioned hot runner mold, the fixed platen gear, in conjunction with the upper and lower racks, can only synchronously drive the upper and lower moving molds to move, and cannot complete the asynchronous mold opening of the upper and lower moving molds. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a stacked mold that has the advantage of being able to complete asynchronous mold opening of the upper moving mold and the lower moving mold.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is: a stacked mold, comprising an upper moving mold, a middle fixed mold, and a lower moving mold arranged sequentially. A fixed mold gear is rotatably connected to the outer wall of the middle fixed mold. An upper rack and a lower rack are respectively arranged on the left and right sides of the fixed mold gear. The upper part of the upper rack is connected to the upper moving mold, and the side of the upper rack meshes with the fixed mold gear. The lower part of the lower rack is connected to the lower moving mold. A delay mechanism is provided between the lower rack and the middle fixed mold. The delay mechanism is used to drive the lower rack closer to or away from the fixed mold gear. The delay mechanism includes a delay function. The system comprises a base, a delay support, and a support spring. The delay base is slidably connected to the outer wall of the central fixed mold, and the sliding direction of the delay base is perpendicular to the extension direction of the lower rack. The delay support is located above the delay base, and the lower rack is slidably connected to the outside of the delay support. The upper inner side of the delay base is provided with a few transmission teeth, and the lower part of the delay base is provided with a guide post, which is slidably connected to the delay base. The support spring is disposed between the delay base and the delay support to apply an upward supporting force to the delay support, so that the transmission teeth mesh with the fixed mold gear.

[0005] Through the above technical solution, when it is necessary to control the asynchronous opening of the upper moving mold and the lower moving mold, the first step is to press down the delay support seat, so that the transmission teeth on the top of the delay support seat separate from the fixed mold gear. At this time, the support spring is compressed and accumulates elastic potential energy. During this process, the guide post slides on the delay base to limit and guide the delay support seat. The second step is to drive the delay base to slide away from the upper rack. The delay base will drive the delay support seat to move through the guide post, so that the lower rack separates from the fixed mold gear. The third step is to release the pressure applied to the delay support seat. At this time, the compressed support spring will drive the delay support seat to move upward through the elastic force, so that the transmission teeth mesh with the fixed mold gear.

[0006] When the mold is opened, the upper moving mold and the middle fixed mold separate first. During this process, the upper moving mold will drive the fixed mold gear to rotate through the upper rack. When the fixed mold gear rotates, it will drive the delay support seat to move to the upper rack side through several transmission teeth. At the same time, the delay support seat will drive the delay base to move to the upper rack side through the guide column. When the lower rack on the delay support seat meshes with the fixed mold gear, the fixed mold gear will drive the lower moving mold to move through the lower rack, so that the lower moving mold separates from the middle fixed mold.

[0007] Preferably, a T-shaped guide groove is provided on the outer side of the central fixed mold, the left part of the T-shaped guide groove penetrates the central fixed mold, and a T-shaped guide block is provided on the inner side of the delay base, the T-shaped guide block being slidably connected in the T-shaped guide groove.

[0008] Through the above technical solution, the T-shaped guide groove and the T-shaped guide block cooperate to limit and guide the sliding of the delay base. The left part of the T-shaped guide groove passes through the middle fixed mold, making the disassembly and assembly of the delay base more convenient and quick.

[0009] Preferably, there are several guide posts, and the several guide posts are distributed at equal intervals along the sliding direction of the delay base.

[0010] Through the above technical solution, a number of guide columns evenly distributed along the sliding direction of the delay base can more stably limit the delay support, making it less likely for the delay support and the delay base to slide relative to each other.

[0011] Preferably, a guide hole is provided on the upper outer side of the delay base, the guide hole is provided along the extension direction of the lower rack, and the guide post is slidably connected in the guide hole.

[0012] Through the above technical solution, the guide post is slidably connected in the guide hole, which can reduce the space required by the above-mentioned stacked mold to a certain extent, making the structure of the above-mentioned stacked mold more compact.

[0013] Preferably, the support spring is sleeved on the outside of the guide post, and the inner ring of the support spring contacts the outer wall of the guide post.

[0014] Through the above technical solution, the guide column can limit and guide the extension and retraction direction of the support spring, so that the direction of the elastic force applied by the support spring to the time delay support seat is not easily changed, and the time delay support seat can be driven to slide more effectively.

[0015] Preferably, a limiting groove is provided on the outer side of the delay support base, the limiting groove is provided along the extension direction of the lower rack, and the lower rack is slidably connected in the limiting groove.

[0016] Through the above technical solution, the limiting groove can not only be used to position and guide the lower rack, but also reduce the space required by the above-mentioned stacked mold to a certain extent, making the structure of the above-mentioned stacked mold more compact.

[0017] Preferably, a second T-shaped guide groove is provided on the inner wall of the limiting groove. The second T-shaped guide groove is provided along the extension direction of the lower rack, and both ends of the second T-shaped guide groove penetrate the delay support seat. A second T-shaped guide block is provided on the inner side of the lower rack, and the second T-shaped guide block is slidably connected in the second T-shaped guide groove.

[0018] Through the above technical solution, the second T-shaped guide groove and the second T-shaped guide block cooperate with each other to limit and guide the lower rack, and make it difficult for the lower rack to come out of the limiting groove.

[0019] Preferably, a receiving groove is provided at the position where the middle fixed mold is opposite to the fixed mold gear, the inner side of the fixed mold gear is rotatably connected to the receiving groove, a storage groove is provided at the position where the middle fixed mold is opposite to the upper rack, the storage groove is connected to the receiving groove, and the upper rack is slidably connected to the storage groove.

[0020] With the above technical solution, the upper rack is slidably connected in the storage groove, which does not easily obstruct the use of the delay mechanism. Furthermore, storing the upper rack in the storage groove makes the structure of the above-mentioned stacked mold more compact.

[0021] Preferably, the depth of the inner side of the T-shaped guide groove is less than the depth of the outer side of the upper rack.

[0022] With the above technical solution, the upper rack will not come into contact with the T-shaped guide block, and will not easily obstruct the sliding of the delay base.

[0023] Preferably, an adhesive block is provided on the side wall of the central fixed mold. When the lower rack meshes with the fixed mold gear, the transmission gear separates from the fixed mold gear, and the adhesive block is bonded and fixed to the delay support.

[0024] By using the above technical solution, the delay support seat is bonded and fixed by the adhesive block, which avoids the fixed mold gear from constantly hitting the transmission gear, making the use of the above delay mechanism more stable. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a partial cross-sectional view of an embodiment.

[0026] Reference numerals in the attached drawings: 1. Upper moving mold; 2. Middle fixed mold; 3. Lower moving mold; 4. Fixed mold gear; 5. Upper rack; 6. Lower rack; 7. Delay mechanism; 71. Delay base; 72. Delay support seat; 73. Support spring; 8. Transmission gear; 9. Guide post; 10. T-shaped guide groove one; 11. T-shaped guide block one; 12. Guide hole; 13. Limiting groove; 14. T-shaped guide groove two; 15. T-shaped guide block two; 16. Receiving groove; 17. Storage groove; 18. Adhesive block. Implementation

[0027] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and mastered.

[0028] A type of stacked mold, such as Figure 1 , Figure 2As shown, the system includes an upper moving mold 1, a middle fixed mold 2, and a lower moving mold 3 arranged sequentially. A fixed mold gear 4 is rotatably connected to the outer wall of the middle fixed mold 2. An upper rack 5 and a lower rack 6 are respectively arranged on the left and right sides of the fixed mold gear 4. The upper part of the upper rack 5 is connected to the upper moving mold 1, and the side of the upper rack 5 meshes with the fixed mold gear 4. The lower part of the lower rack 6 is connected to the lower moving mold 3. A delay mechanism 7 is provided between the lower rack 6 and the middle fixed mold 2. The delay mechanism 7 is used to drive the lower rack 6 to move closer to or away from the fixed mold gear 4.

[0029] The delay mechanism 7 includes a delay base 71, a delay support 72, and a support spring 73. The delay base 71 is slidably connected to the outer wall of the central fixed mold 2, and the sliding direction of the delay base 71 is perpendicular to the extension direction of the lower rack 6. The delay support 72 is located above the delay base 71, and the lower rack 6 is slidably connected to the outer side of the delay support 72. A transmission gear 8 is provided on the upper inner side of the delay base 71. A guide post 9 is provided on the lower part of the delay base 71, and the guide post 9 is slidably connected to the delay base 71. The support spring 73 is disposed between the delay base 71 and the delay support 72 to apply an upward supporting force to the delay support 72, so that the transmission gear 8 meshes with the fixed mold gear 4.

[0030] A T-shaped guide groove 10 is provided on the outer side of the central fixed mold 2. The left part of the T-shaped guide groove 10 passes through the central fixed mold 2. A T-shaped guide block 11 is provided on the inner side of the delay base 71. The T-shaped guide block 11 is slidably connected in the T-shaped guide groove 10.

[0031] There are several guide posts 9, and the guide posts 9 are evenly distributed along the sliding direction of the delay base 71. A guide hole 12 is provided on the upper outer side of the delay base 71, and the guide hole 12 is arranged along the extending direction of the lower rack 6. The number of guide holes 12 is the same as the number of guide posts 9, and the guide posts 9 are slidably connected in the guide holes 12 one-to-one. The number of support springs 73 is the same as the number of guide posts 9, and the support springs 73 are sleeved on the outer side of the guide posts 9 one-to-one, with the inner ring of the support spring 73 contacting the outer wall of the guide post 9.

[0032] A limiting groove 13 is formed on the outer side of the delay support 72. The limiting groove 13 is arranged along the extension direction of the lower rack 6, and the lower rack 6 is slidably connected in the limiting groove 13. A T-shaped guide groove 14 is formed on the inner wall of the limiting groove 13. The T-shaped guide groove 14 is arranged along the extension direction of the lower rack 6, and both ends of the T-shaped guide groove 14 penetrate the delay support 72. A T-shaped guide block 15 is provided on the inner side of the lower rack 6, and the T-shaped guide block 15 is slidably connected in the T-shaped guide groove 14.

[0033] A receiving groove 16 is provided at the position where the central fixed mold 2 is opposite to the fixed mold gear 4. The inner side of the fixed mold gear 4 is rotatably connected in the receiving groove 16. A storage groove 17 is provided at the position where the central fixed mold 2 is opposite to the upper rack 5. The storage groove 17 is connected to the receiving groove 16, and the upper rack 5 is slidably connected in the storage groove 17. The depth of the inner side of the T-shaped guide groove 10 is less than the depth of the outer side of the upper rack 5.

[0034] An adhesive block 18 is provided on the side wall of the middle fixed mold 2. When the lower rack 6 meshes with the fixed mold gear 4, the transmission gear 8 separates from the fixed mold gear 4, and the adhesive block 18 is bonded and fixed to the delay support seat 72.

[0035] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A stacked mold, comprising an upper moving mold (1), a middle fixed mold (2), and a lower moving mold (3) arranged sequentially, wherein a fixed mold gear (4) is rotatably connected to the outer wall of the middle fixed mold (2), an upper rack (5) and a lower rack (6) are respectively arranged on the left and right sides of the fixed mold gear (4), the upper part of the upper rack (5) is connected to the upper moving mold (1), and the side of the upper rack (5) meshes with the fixed mold gear (4), and the lower part of the lower rack (6) is connected to the lower moving mold (3), characterized in that: A delay mechanism (7) is provided between the lower rack (6) and the middle fixed mold (2). The delay mechanism (7) is used to drive the lower rack (6) to move closer to or away from the fixed mold gear (4). The delay mechanism (7) includes a delay base (71), a delay support (72), and a support spring (73). The delay base (71) is slidably connected to the outer wall of the middle fixed mold (2), and the sliding direction of the delay base (71) is perpendicular to the extension direction of the lower rack (6). The delay support (72) is located on the delay base (71). Above 1), the lower rack (6) is slidably connected to the outside of the delay support (72). The upper inner side of the delay support (72) is provided with a plurality of transmission teeth (8). The lower part of the delay support (72) is provided with a guide post (9). The guide post (9) is slidably connected to the delay base (71). The support spring (73) is provided between the delay base (71) and the delay support (72) to apply an upward support force to the delay support (72), so that the transmission teeth (8) mesh with the fixed mold gear (4).

2. The laminated mold according to claim 1, characterized in that: A T-shaped guide groove (10) is provided on the outer side of the central fixed mold (2). The left part of the T-shaped guide groove (10) passes through the central fixed mold (2). A T-shaped guide block (11) is provided on the inner side of the delay base (71). The T-shaped guide block (11) is slidably connected in the T-shaped guide groove (10).

3. A laminated mold according to claim 1, characterized in that: There are several guide posts (9), and the several guide posts (9) are distributed at equal intervals along the sliding direction of the delay base (71).

4. A laminated mold according to claim 3, characterized in that: The upper outer side of the delay base (71) is provided with a guide hole (12), the guide hole (12) is provided along the extension direction of the lower rack (6), and the guide post (9) is slidably connected in the guide hole (12).

5. A laminated mold according to claim 4, characterized in that: The support spring (73) is sleeved on the outside of the guide post (9), and the inner ring of the support spring (73) contacts the outer wall of the guide post (9).

6. A laminated mold according to claim 1, characterized in that: A limiting groove (13) is provided on the outer side of the delay support (72). The limiting groove (13) is provided along the extension direction of the lower rack (6). The lower rack (6) is slidably connected in the limiting groove (13).

7. A laminated mold according to claim 6, characterized in that: The inner wall of the limiting groove (13) is provided with a T-shaped guide groove (14), which is arranged along the extension direction of the lower rack (6), and both ends of the T-shaped guide groove (14) penetrate the delay support seat (72). A T-shaped guide block (15) is provided on the inner side of the lower rack (6), and the T-shaped guide block (15) is slidably connected in the T-shaped guide groove (14).

8. A laminated mold according to claim 2, characterized in that: A receiving groove (16) is provided at the position opposite to the fixed mold (4) in the middle fixed mold (2). The inner side of the fixed mold (4) is rotatably connected in the receiving groove (16). A storage groove (17) is provided at the position opposite to the upper rack (5) in the middle fixed mold (2). The storage groove (17) is connected to the receiving groove (16). The upper rack (5) is slidably connected in the storage groove (17).

9. A laminated mold according to claim 8, characterized in that: The depth of the inner side of the T-shaped guide groove (10) is less than the depth of the outer side of the upper rack (5).

10. A laminated mold according to claim 9, characterized in that: An adhesive block (18) is provided on the side wall of the middle fixed mold (2). When the lower rack (6) meshes with the fixed mold gear (4), the transmission gear (8) separates from the fixed mold gear (4), and the adhesive block (18) is bonded and fixed to the delay support seat (72).

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