Die assembly positioning structure of upper die and lower die

Abstract

The utility model discloses a die assembly positioning structure of an upper die and a lower die, which comprises the lower die and the upper die connected with the lower die in a sliding manner, an ejection mechanism is arranged in the lower die and comprises an ejection rod and a movable rod, the movable rod penetrates through the lower die, and a connecting mechanism is arranged in the upper die. And the upper mold keeps reciprocating motion, so that the connecting mechanism is connected with the movable rod, and the ejector rod is driven to eject the lower mold. According to the die assembly positioning structure of the upper die and the lower die, the upper die keeps sliding on the lower die, when the upper die is separated from the lower die, the movable rod is driven through the connecting mechanism, the ejector rod is further driven to move upwards through movement of the movable rod, and then a product located in the lower die is ejected out. Compared with the prior art, an operator can conveniently take out a machined product from the mold, then the machining efficiency can be improved, meanwhile, by ejecting the product out of the mold, the manual taking time is shortened, production is safer, and safety accidents can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold production, in particular to a mold closing and positioning structure of an upper and lower mold. Background Art

[0002] Mold manufacturing is the process of directly processing the mold part materials (usually metal materials) under certain manufacturing equipment and manufacturing process conditions to change their shape, size, relative position and properties to make them meet the requirements, and then assemble these parts into molds through matching, positioning, connecting and fixing.

[0003] According to the invention patent application with publication number: CN216941667U and publication date of 2022-07-12, an upper and lower core-pulling mold is disclosed, which includes a front mold, a push plate, a rear mold and a bottom plate. The push plate is provided with a slide insert fixing plate, a slide insert, a slide baffle and a slide seat. The slide insert fixing plate and the slide baffle are arranged on the push plate at intervals in the vertical direction. The slide insert includes a fixed insert and a movable insert. The fixed insert is fixedly connected to the slide insert fixing plate. The movable insert is fixed together with the slide baffle. The slide baffle is provided with a product extraction hole corresponding to the movable insert. The other end of the slide seat is connected to the core-pulling drive device. The push plate is provided with a baffle limiting step. A rear mold core is provided at the position of the push plate and the rear mold corresponding to the slide insert. The rear end of the slide insert fixing plate is connected to the push rod, and the push plate, the rear mold and the bottom plate are provided with a push rod channel for the setting and movement of the push rod. Its main technical effect is that when performing the up and down core pulling action, it only occupies the vertical space, but not the horizontal position, which can save the floor space of the mold, reduce space waste and save costs.

[0004] During the production and use of the upper and lower molds, some of the produced products need to be taken out from the molds. The existing upper and lower molds are not designed with a structure that facilitates the removal of products. Therefore, a mold closing and positioning structure for the upper and lower molds is proposed, aiming to solve the problem of the inconvenience of taking out products from the upper and lower molds in the existing technology. Utility Model Content

[0005] The utility model aims to provide a mold clamping and positioning structure for upper and lower molds, aiming to solve the problem of inconvenience in taking out products from the upper and lower molds in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A clamping and positioning structure for upper and lower molds comprises a lower mold and an upper mold slidably connected to the lower mold. An ejection mechanism is provided inside the lower mold, and the ejection mechanism comprises an ejection rod and a movable rod. The movable rod passes through the lower mold. A connecting mechanism is provided inside the upper mold, and the upper mold maintains reciprocating motion so that the connecting mechanism remains connected to the movable rod and drives the ejection rod to eject the lower mold.

[0008] Preferably, an ejection hole is provided on the outer wall of one side of the lower mold, and the ejection rod is slidably connected to the ejection hole. The ejection mechanism also includes a fixed plate, and the ejection rod is fixedly connected to the outer wall of one side of the fixed plate. A through hole is provided on the outer wall of one side of the lower mold, and the movable rod is fixedly installed on the outer wall of one side of the fixed plate, and the movable rod is slidably connected to the through hole.

[0009] Preferably, a wedge-shaped step is provided on the outer wall of one side of the movable rod, and the connecting mechanism includes a movably arranged clamping rod, on which a wedge-shaped groove is provided, and the wedge-shaped groove is brought into contact with the wedge-shaped step by driving the clamping rod to keep moving.

[0010] Preferably, a guide rod is fixedly provided on the outer wall of one side of the lower mold, and the upper mold is slidably connected to the lower mold through the guide rod. An abutment mechanism is fixedly provided on the upper mold, and the abutment mechanism includes a mounting seat, an elastic unit and an abutment block. The mounting seat is fixedly installed on the outer wall of one side of the upper mold, and the abutment block is slidably connected to the inside of the mounting seat. One end of the elastic unit abuts against the mounting seat, and the other end of the elastic unit abuts against the abutment block.

[0011] In the above technical solution, the utility model provides a mold clamping and positioning structure for upper and lower molds, which has the following beneficial effects:

[0012] In this utility model, the upper mold keeps sliding on the lower mold. When the upper mold is separated from the lower mold, the movable rod is driven by the connecting mechanism, and the movement of the movable rod further drives the ejection rod to move upward, thereby ejecting the product located inside the lower mold, making it convenient for the operator to remove the processed product from the mold, thereby improving the processing efficiency. At the same time, by ejecting the product from the mold, the time for manual removal is reduced, which is safer during production and can reduce the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0015] Figure 2 A schematic diagram of the abutment mechanism structure provided in an embodiment of the present utility model;

[0016] Figure 3A schematic diagram of the partial structure of the ejection mechanism provided in an embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of a three-dimensional cross-sectional structure provided by an embodiment of the present utility model.

[0018] Description of reference numerals:

[0019] 1. Lower mold; 11. Ejector hole; 12. Through hole; 13. Guide rod; 2. Upper mold; 21. Mounting groove; 22. Mounting plate; 3. Ejector mechanism; 31. Ejector rod; 32. Movable rod; 33. Fixed plate; 34. Wedge-shaped step; 4. Connecting mechanism; 41. Clamping rod; 42. Wedge-shaped groove; 5. Abutment mechanism; 51. Mounting seat; 52. Elastic unit; 53. Abutment block DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1 —4, a mold clamping and positioning structure for upper and lower molds, comprising a lower mold 1 and an upper mold 2 slidably connected to the lower mold 1, an ejection mechanism 3 is provided inside the lower mold 1, the ejection mechanism 3 comprises an ejection rod 31 and a movable rod 32, the movable rod 32 passes through the lower mold 1, and a connecting mechanism 4 is provided inside the upper mold 2. The upper mold 2 maintains reciprocating motion so that the connecting mechanism 4 remains connected to the movable rod 32 and drives the ejection rod 31 to eject the lower mold 1.

[0022] It should be pointed out that the internal mold structures of the upper mold 2 and the lower mold 1 provided by the present invention can be designed according to the products to be produced.

[0023] like Figure 1As shown, guide rods 13 are provided at the four corners of the top of the lower mold 1. Correspondingly, guide holes are provided at the four corners of the upper mold 2. The upper mold 2 is slidably connected to the guide rods 13 through the guide holes, that is, the upper mold 2 maintains a sliding connection with the lower mold 1 through the guide rods 13. An abutment mechanism 5 is fixedly provided on the outer wall of the upper mold 2. The abutment mechanism 5 includes a mounting seat 51, an elastic unit 52 and an abutment block 53. The mounting seat 51 is fixedly installed on the outer wall of the upper mold 2. A slide groove is provided inside the mounting seat 51. The abutment block 53 is slidably connected to the slide groove, one end of the elastic unit 52 abuts the inner wall of the slide groove, and the other end abuts the abutment block 53. The elastic unit 52 can drive the abutment block 53 to move toward one side inside the mounting seat 51. Preferably, the outer wall of one side of the abutment block 53 is an arc-shaped structure. The elasticity of the elastic unit 52 drives the abutment block 53 to abut the outer wall of the guide rod 13, thereby eliminating the matching clearance between the upper mold 2 and the lower mold 1 to a certain extent, facilitating the positioning between the upper mold 2 and the lower mold 1. Specifically, the elastic unit 52 is a compression spring.

[0024] As a further embodiment provided by the present invention, Figure 4 As shown, an ejection hole 11 is provided on the outer wall of one side of the lower mold 1. Preferably, the ejection hole 11 is provided at the axis of the bottom of the temple of the lower mold 1. The ejection rod 31 is slidably connected to the inside of the ejection hole 11. The ejection mechanism 3 also includes a fixed plate 33. Preferably, the movable rod 32 and the ejection rod 31 are fixedly installed on the outer wall of one side of the fixed plate 33. A through hole 12 is provided on the outer wall of one side of the lower mold 1. The movable rod 32 is slidably connected to the inside of the through hole 12. A wedge-shaped step 34 is provided on the end of the movable rod 32 away from the fixed plate 33. Specifically, the connecting mechanism 4 includes a movably arranged clamping rod 41, as shown in FIG. Figure 4 As shown, a mounting groove 21 is defined on the outer wall of the top of the upper mold 2. A through hole is defined within the bottom of the mounting groove 21, the diameter of which matches that of the movable rod 32. A mounting plate 22 is fixedly mounted in the mounting groove 21, to which a clamping rod 41 is slidably connected. A wedge-shaped groove 42 is defined on the outer wall of the clamping rod 41, the shape of which matches that of the wedge-shaped step 34. A receiving groove is defined at the bottom of the lower mold 1. The receiving groove communicates with the ejection hole 11 and the through hole 12, and a fixed plate 33 is located within the receiving groove.

[0025] As one of the embodiments provided by the present invention, a spring is arranged between the clamping rod 41 and the inner wall of the mounting groove 21. The spring can drive the clamping rod 41 to move to one side, so that the multiple clamping rods 41 arranged in the mounting groove 21 are gathered together. The spring drives the multiple methanol rods to gather together to clamp the wedge-shaped step 34 on the movable rod 32.

[0026] As another embodiment provided by the present invention, there are two clamping rods 41 , which are driven by a clamping cylinder to move toward or away from each other, thereby clamping the wedge-shaped step 34 on the movable rod 32 .

[0027] By clamping the wedge-shaped step 34 on the movable rod 32 by maintaining relative movement through multiple clamping rods 41, the fixed plate 33 can move synchronously with the upper mold 2 when the upper mold 2 is separated from the lower mold 1, and drive the ejection rod 31 to eject the processed product.

[0028] The use of springs to drive the clamping rods 41 to keep moving allows the movable rods 32 to move synchronously with the upper mold 2, and after moving to the extreme position, the fixed plate 33 abuts against the top and bottom of the lower mold 1, separating the multiple clamping rods 41, and further separating the clamping rods 41 from the movable rods 32;

[0029] Using a clamping cylinder to drive the clamping rod 41 to maintain movement can provide greater clamping force for clamping the movable rod 32, ensuring that the movable rod 32 can maintain movement during the movement of the upper mold 2. Using a clamping cylinder to drive the clamping rod 41 to maintain reciprocating motion is a conventional technical means in the art, and its specific structure is omitted. It can be achieved by simply installing the clamping cylinder on the upper mold 2 and connecting the clamping rod 41 to the output end of the clamping cylinder.

[0030] In this utility model, the upper mold 2 keeps sliding on the lower mold 1. When the upper mold 2 is separated from the lower mold 1, the movable rod 32 is driven by the connecting mechanism 4, and the movement of the movable rod 32 further drives the ejection rod 31 to move upward, thereby ejecting the product located inside the lower mold 1, making it convenient for the operator to remove the processed product from the mold, thereby improving the processing efficiency. At the same time, by ejecting the product from the mold, the time for manual removal is reduced, which is safer during production and can reduce the occurrence of safety accidents.

[0031] Working principle:

[0032] When the upper mold 2 moves toward the lower mold 1 under the drive of the driving mechanism, since the movable rod 32 passes through the top of the lower mold 1, the movable rod 32 can enter the interior of the mounting groove 21 through the through hole opened on the outer wall of the upper mold 2;

[0033] After the movable rod 32 enters the installation groove 21, the wedge-shaped step 34 provided on the top of the movable rod 32 is clamped by the clamping rod 41;

[0034] When the upper mold 2 is separated from the lower mold 1 , the clamping rod 41 clamps the movable rod 32 and drives the movable rod 32 to move, and the movable rod 32 drives the ejection rod 31 to eject the product.

[0035] The elastic coefficient of the compression spring mentioned in this article meets the technical requirements of the technical solution of the utility model.

[0036] Those skilled in the art will appreciate that other similar connection methods can also implement the present invention, such as welding, bonding, or screwing.

[0037] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mold clamping and positioning structure for upper and lower molds, comprising a lower mold (1) and an upper mold (2) slidably connected to the lower mold (1), characterized in that: An ejection mechanism (3) is provided inside the lower mold (1), and the ejection mechanism (3) includes an ejection rod (31) and a movable rod (32). The movable rod (32) passes through the lower mold (1). A connecting mechanism (4) is provided inside the upper mold (2). The upper mold (2) maintains reciprocating motion so that the connecting mechanism (4) and the movable rod (32) remain connected and drive the ejection rod (31) to eject the lower mold (1).

2. The mold clamping and positioning structure of the upper and lower molds according to claim 1, characterized in that: An ejection hole (11) is provided on the outer wall of one side of the lower mold (1), and the ejection rod (31) is slidably connected to the ejection hole (11). The ejection mechanism (3) also includes a fixed plate (33), and the ejection rod (31) is fixedly connected to the outer wall of one side of the fixed plate (33). A through hole (12) is provided on the outer wall of one side of the lower mold (1), and the movable rod (32) is fixedly installed on the outer wall of one side of the fixed plate (33), and the movable rod (32) is slidably connected to the through hole (12).

3. The mold clamping and positioning structure of the upper and lower molds according to claim 2, characterized in that: A wedge-shaped step (34) is provided on the outer wall of one side of the movable rod (32). The connecting mechanism (4) includes a movably arranged clamping rod (41). A wedge-shaped groove (42) is provided on the clamping rod (41). The clamping rod (41) is driven to keep moving so that the wedge-shaped groove (42) abuts against the wedge-shaped step (34).

4. The mold clamping and positioning structure of the upper and lower molds according to claim 1, characterized in that: A guide rod (13) is fixedly provided on the outer wall of one side of the lower mold (1); the upper mold (2) is slidably connected to the lower mold (1) via the guide rod (13); an abutment mechanism (5) is fixedly provided on the upper mold (2); the abutment mechanism (5) comprises a mounting seat (51), an elastic unit (52) and an abutment block (53); the mounting seat (51) is fixedly mounted on the outer wall of one side of the upper mold (2); the abutment block (53) is slidably connected to the inside of the mounting seat (51); one end of the elastic unit (52) abuts against the mounting seat (51); and the other end of the elastic unit (52) abuts against the abutment block (53).

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