Die capable of achieving ridge piece forming
By designing injection molds with slider and oblique guide column structures and using floating positioning and compression mechanisms, the precise positioning problems of traditional molds when forming complex structures and embedding metal inserts are solved, achieving high-quality molding and low-cost production.
Patent Information
- Application Number
- CN202421746445.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-23
AI Technical Summary
When forming complex structures and embedding metal inserts, it is difficult to achieve accurate positioning and adapt to the problem of dimensional deviation of metal inserts.
A mold including fixed mold and moving mold part is designed, and the two-direction core pulling action is achieved using slider and oblique guide column structures, and the precise positioning of the metal insert is ensured through a floating positioning and compression mechanism.
It realizes the molding of complex structures and precise positioning of metal inserts, adapts to the size deviation of metal inserts, improves product quality, simplifies the mold production process, and reduces manufacturing costs.
Smart Images
Figure CN222779941U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of injection molds, in particular to a mold which can realize molding of door parts. Background Art
[0002] Injection molding is a low-cost mass production process for plastic products. Injection molds are required during the injection molding process. After the molds are closed, the molding machine injects molten material into the mold cavity. After the material cools, it forms a product that matches the shape of the cavity.
[0003] Since the injection molding process has the advantages of low cost and mass production, many plastic products are made by injection molding. With the continuous advancement and improvement of the injection molding process, some products with relatively complex structures can also be made by injection molding. For example, there is a type of workpiece with deep grooves on both the front and back sides (the front grooves and the back grooves are staggered). This special structure brings certain troubles to injection molding; at the same time, metal inserts need to be embedded at the edges. In theory, the size specifications of all embedded metal inserts should be kept completely consistent, but in practice, due to processing errors and other reasons, the specific size of the metal inserts often has certain deviations. The positioning mechanism for the pre-metal inserts in the traditional mold structure is a non-adjustable structure. Once there is a problem with the size of the metal insert, the metal insert part will be displaced under the pressure of the material after injection molding, thereby affecting the quality of the product.
[0004] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention
[0005] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a mold with simple structure, ingenious design, reasonable layout, capable of performing core pulling actions in two directions and ensuring accurate positioning of embedded metal inserts.
[0006] The technical solution of the utility model is: a mold capable of realizing molding of a door frame, comprising a fixed mold part and a movable mold part, wherein the fixed mold part comprises a fixed mold taking-up plate 1, a fixed mold plate 2 is arranged below the fixed mold taking-up plate 1, and the movable mold part comprises a movable mold taking-up plate 3, a push rod bottom plate 4, a push rod plate 5, a square iron 6 and a movable mold plate 7 are arranged in sequence above the movable mold taking-up plate 3, a fixed mold core 8 is arranged in the fixed mold plate 2, and a movable mold core 9 is arranged in the movable mold plate 7, and in the mold closing state, the fixed mold core 8 and the movable mold core 9 are enclosed together to form a cavity, characterized in that:
[0007] The movable template 7 is slidably connected with a first slider 10, the fixed template 2 is provided with a first inclined guide column 11, the first inclined guide column 11 is slidably connected in an inclined guide groove provided on the first slider 10, the outer end of the first slider 10 is provided with a passive locking inclined surface, the fixed template 2 is provided with a first locking block 12, the first locking block 12 is provided with an active locking inclined surface matching the passive locking inclined surface, the front end of the first slider 10 is a first molding portion,
[0008] The movable template 7 is also slidably connected with a second slider 13, and the fixed template 2 is provided with a second inclined guide column, which is slidably connected in an inclined guide groove provided on the second slider 13. The outer end of the second slider 13 is provided with a passive locking inclined surface, and the fixed template 2 is provided with a second locking block 15. The second locking block 15 is provided with an active locking inclined surface matching the passive locking inclined surface. The front end of the second slider 13 is a second molding portion.
[0009] A movable mold positioning column 16 is arranged in the movable mold core 9, and a positioning pin 17 is arranged at the top of the movable mold positioning column 16. A spring pad 18 is arranged in the fixed mold plate 2, and a support 19 is arranged at the bottom end of the spring pad 18. An adjustment core 20 is connected to the support 19, and a positioning groove 21 matching the positioning pin 17 is arranged at the bottom end of the adjustment core 20. A spring 22 is connected to the support 19, and the spring 22 is located between the spring pad 18 and the adjustment core 20. When the mold is closed, the metal insert 23 is pressed on the top surface of the movable mold positioning column 16 by the adjustment core 20.
[0010] In the mold closing state, the first molding part, the second molding part and the metal insert 23 are all located in the mold cavity.
[0011] Compared with the prior art, the utility model has the following advantages:
[0012] This structural form obtains a mold that can realize the molding of the door parts. It has a simple structure, ingenious design, and reasonable layout. It designs a special structure to address the problems existing in the process of preparing a certain type of workpiece with special structure using traditional molds. First of all, it has a side core-pulling mechanism in two directions, which can realize the molding of relatively complex structures. At the same time, it also designs a set of floating positioning and clamping mechanisms for the metal inserts in the workpiece. This mechanism can quickly, conveniently and stably position the metal inserts, and because the mechanism has a floating clamping function, even if there are certain processing errors in the metal inserts, it can still be accurately positioned. In addition, the manufacturing process of this mold is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1It is a structural schematic diagram of an embodiment of the utility model (main viewing direction).
[0014] Figure 2 It is a schematic structural diagram of an embodiment of the utility model (side view).
[0015] Figure 3 yes Figure 2 Enlarged view of part A in . DETAILED DESCRIPTION
[0016] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figures 1 to 3 As shown: a mold capable of realizing molding of a door frame, comprising a fixed mold part and a movable mold part, wherein the fixed mold part comprises a fixed mold taking-up plate 1, a fixed mold plate 2 is arranged below the fixed mold taking-up plate 1, and the movable mold part comprises a movable mold taking-up plate 3, a push rod bottom plate 4, a push rod plate 5, a square iron 6 and a movable mold plate 7 are arranged in sequence above the movable mold taking-up plate 3, a fixed mold core 8 is arranged in the fixed mold plate 2, and a movable mold core 9 is arranged in the movable mold plate 7, and in the mold closing state, the fixed mold core 8 and the movable mold core 9 are enclosed together to form a cavity,
[0017] The movable template 7 is slidably connected with a first slider 10, the fixed template 2 is provided with a first inclined guide column 11, the first inclined guide column 11 is slidably connected in an inclined guide groove provided on the first slider 10, the outer end of the first slider 10 is provided with a passive locking inclined surface, the fixed template 2 is provided with a first locking block 12, the first locking block 12 is provided with an active locking inclined surface matching the passive locking inclined surface, the front end of the first slider 10 is a first molding portion,
[0018] The movable template 7 is also slidably connected with a second slider 13, and the fixed template 2 is provided with a second inclined guide column, which is slidably connected in an inclined guide groove provided on the second slider 13. The outer end of the second slider 13 is provided with a passive locking inclined surface, and the fixed template 2 is provided with a second locking block 15. The second locking block 15 is provided with an active locking inclined surface matching the passive locking inclined surface. The front end of the second slider 13 is a second molding portion.
[0019] A movable mold positioning column 16 is arranged in the movable mold core 9, and a positioning pin 17 is arranged at the top of the movable mold positioning column 16. A spring pad 18 is arranged in the fixed mold plate 2, and a support 19 is arranged at the bottom end of the spring pad 18. An adjustment core 20 is connected to the support 19, and a positioning groove 21 matching the positioning pin 17 is arranged at the bottom end of the adjustment core 20. A spring 22 is connected to the support 19, and the spring 22 is located between the spring pad 18 and the adjustment core 20. When the mold is closed, the metal insert 23 is pressed on the top surface of the movable mold positioning column 16 by the adjustment core 20.
[0020] In the mold closing state, the first molding part, the second molding part and the metal insert 23 are all located in the mold cavity.
[0021] The working process of the mold for realizing the molding of the door frame in the embodiment of the utility model is as follows: in the mold opening state, the metal insert 23 is first sleeved onto the positioning pin 17 to realize the positioning in the horizontal direction;
[0022] When the mold is closed, under the action of the first locking block 12 and the second locking block 15, the first slider 10 and the second slider 13 both move toward the direction of the cavity, and the first molding part and the second molding part at the ends of the two are inserted into the cavity to occupy the position, forming a part of the cavity; at the same time, the positioning groove 21 at the bottom end of the adjustment core 20 will also be buckled on the positioning pin 17, and at the same time, the bottom end surface of the adjustment core 20 is pressed on the upper surface of the metal insert 23. In this process, the spring 22 is compressed and the metal insert 23 is positioned;
[0023] After the mold is closed, the molding machine injects the molten material into the cavity. After the material is cooled, a workpiece 24 that matches the shape of the cavity is formed. The first molding part forms a sink groove on the front side of the workpiece 24, and the second molding part forms a sink groove on the back side of the workpiece 24. The two are staggered. At the same time, the metal insert 23 is also wrapped by the material to form an insert part.
[0024] In the above working process, even if there is a certain deviation in the size of the metal insert 23, the metal insert 23 can be pressed and positioned in the longitudinal direction due to the elastic design of the adjustment core 20;
[0025] It should be noted that, in actual work, the number of metal inserts 23 that need to be embedded on the workpiece 24 is the number of insert positioning mechanisms that match the metal inserts 23 in the mold (the insert positioning mechanism here is composed of a movable mold positioning column 16, a positioning pin 17, a spring pad 18, a support 19, an adjustment core 20 and a spring 22);
[0026] After the workpiece 24 is formed, the mold is opened, and the first locking block 12 and the second locking block 15 are respectively disengaged from the first slider 10 and the second slider 13, and the two restore the horizontal degree of freedom. Under the action of the inclined guide column, the first slider 10 and the second slider 13 both slide toward the outside, so that the first molding part and the second molding part are respectively pulled out of the groove formed on the workpiece 24, realizing the side core pulling action; and as the mold opening action proceeds, the adjustment core 20 will also be separated from the metal insert 23, and then the ejector bottom plate 4 and the ejector plate 5 will move, driving the ejector to eject the workpiece 24 with the metal insert 23 from the dynamic model cavity, completing the demolding action of the workpiece 24, and thus completing a complete injection molding process.
Claims
1. A mold capable of realizing molding of a door piece, comprising a fixed mold part and a movable mold part, wherein the fixed mold part comprises a fixed mold taking-up plate (1), a fixed mold plate (2) is arranged below the fixed mold taking-up plate (1), and the movable mold part comprises a movable mold taking-up plate (3), a push rod bottom plate (4), a push rod plate (5), a square iron (6) and a movable mold plate (7) are arranged in sequence above the movable mold taking-up plate (3), a fixed mold core (8) is arranged in the fixed mold plate (2), and a movable mold core (9) is arranged in the movable mold plate (7), and in a mold closing state, the fixed mold core (8) and the movable mold core (9) are jointly surrounded to form a mold cavity, characterized in that: A first slider (10) is slidably connected in the movable template (7), a first inclined guide column (11) is provided in the fixed template (2), the first inclined guide column (11) is slidably connected in an inclined guide groove provided on the first slider (10), a passive locking inclined surface is provided at the outer end of the first slider (10), a first locking block (12) is provided in the fixed template (2), an active locking inclined surface matching the passive locking inclined surface is provided on the first locking block (12), the front end of the first slider (10) is a first molding portion, A second slider (13) is slidably connected in the movable die plate (7), a second inclined guide column is provided in the fixed die plate (2), the second inclined guide column is slidably connected in an inclined guide groove provided on the second slider (13), a passive locking inclined surface is provided at the outer end of the second slider (13), a second locking block (15) is provided in the fixed die plate (2), an active locking inclined surface matching the passive locking inclined surface is provided on the second locking block (15), the front end of the second slider (13) is a second molding portion, A movable mold positioning column (16) is arranged in the movable mold core (9), a positioning pin (17) is arranged at the top of the movable mold positioning column (16), a spring pad (18) is arranged in the fixed mold plate (2), a support (19) is arranged at the bottom of the spring pad (18), an adjustment core (20) is connected to the support (19), a positioning groove (21) matching the positioning pin (17) is arranged at the bottom of the adjustment core (20), a spring (22) is connected to the support (19), and the spring (22) is located between the spring pad (18) and the adjustment core (20). When the mold is closed, the metal insert (23) is pressed onto the top surface of the movable mold positioning column (16) by the adjustment core (20). In the mold closing state, the first molding part, the second molding part and the metal insert (23) are all located in the mold cavity to occupy positions.