Backrest foaming mold with multi-core-pulling structure
By designing a multi-core extraction structure in the backrest foaming mold and using the core extraction mechanism of the insert and cylinder, the problem that the existing mold cannot be produced smoothly is solved, and the product is stable and the cost-reducing effect is achieved.
Patent Information
- Application Number
- CN202420545684.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The front and rear core extraction structure of the existing front backrest foaming mold cannot effectively ensure the smooth product output, resulting in quality problems such as product demolding tear and foaming material shortage, which cannot meet the needs of complex shapes and large left and right reverse folds.
Design a backrest foam mold with a multi-core pulling structure, including an upper mold and a lower mold. A first core pulling mechanism is provided on the front and rear sides of the mold cavity, and a symmetrical second core pulling mechanism is provided on the left and right sides, using inserts The cylinder realizes the core extraction function to ensure the smooth molding of the product.
By adding left and right core extraction actions, the product is successfully produced, reducing cost and operational complexity, and improving maintenance convenience.
Smart Images
Figure CN222201408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a backrest foaming mold with a multi-core-pulling structure. Background Art
[0002] Car seats are one of the essential parts of a car, and the seat backs have become an important interior component of a car, and are one of the details that determine the quality of the car. The seat backs are usually formed by foaming molds. The core-pulling structure of the foaming mold for the front backrest is usually a front-to-back structure. This is mainly because the front backrest has a flanged undercut. The corresponding foaming mold must be designed with front and back core-pulling to meet production requirements. However, as the shape of the backrest becomes more and more complex, the undercuts on the left and right sides become larger and larger. The existing front and back core-pulling structure cannot effectively guarantee smooth demolding, which can easily lead to quality problems such as demolding tearing and foaming material shortage, and cannot meet customer requirements. Utility Model Content
[0003] In view of the problems existing in the above-mentioned prior art, the utility model aims to provide a backrest foaming mold with a multi-core-pulling structure to solve the problem that the existing front row backrest has large left and right undercuts and the existing foaming mold cannot ensure smooth demoulding of the product.
[0004] In order to achieve the above-mentioned purpose, the utility model proposes a backrest foaming mold with a multi-core-pulling structure, comprising an upper mold and a lower mold, the upper mold and the lower mold cooperate with each other to form a cavity therebetween, a first core-pulling mechanism is arranged on the front and rear sides of the cavity, a second core-pulling mechanism is symmetrically arranged on the left and right sides of the cavity, the two second core-pulling mechanisms respectively correspond to the upper left corner and the upper right corner of the backrest, a single second core-pulling mechanism comprises an insert and a cylinder, the insert is movably embedded on the corresponding side edge of the cavity, and constitutes a side forming module of the backrest, a groove for embedding the insert is provided between the upper mold and the lower mold, the cylinder is arranged on the outside of the insert and fixed on the upper mold, the cylinder is fixedly connected to the insert through a piston rod, and when the upper mold and the lower mold are opened, the cylinder can drive the insert to move outward and open.
[0005] In the above scheme: the left and right sides of the upper mold and the lower mold are both provided with core-pulling channels for the corresponding inserts to move left and right, so as to facilitate the core-pulling movement of the inserts.
[0006] In the above scheme: a slide rail is provided on the core pulling channel of the upper mold, the extension direction of the slide rail is consistent with the movement direction of the insert, and the insert is slidably arranged on the slide rail, which is conducive to ensuring the stability of the core pulling movement.
[0007] In the above scheme: the insert is connected to the edge of the cavity on one side of the upper mold in an arc shape to form a side molding module of the backrest, which has a simple structure and is easy to process.
[0008] In the above scheme: the joint surface between the insert and the upper mold is an inclined surface, which reduces the risk of foaming and overflow by increasing the joint area.
[0009] The beneficial effects of the utility model are as follows: before the upper mold and the lower mold are closed, the two inserts are driven to move inwards to complete the splicing with the upper mold to form a side molding module of the backrest; when the foaming is completed and the upper mold and the lower mold are opened, the two inserts are driven to move outwards to open, realizing the core pulling function, which effectively ensures that the front backrest is smoothly demolded; in short, the utility model enables the product to be smoothly demolded by adding left and right core pulling actions, and has low cost, convenient operation and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the second core-pulling structure of the utility model when it is closed.
[0011] Figure 2 It is a schematic diagram of the second core-pulling structure of the utility model when it is opened.
[0012] Figure 3 It is a schematic diagram of the utility model when the mold is opened.
[0013] Figure 4 It is a schematic diagram of the lower mold in the utility model. DETAILED DESCRIPTION
[0014] like Figure 1 As shown in FIG. 4 , a backrest foaming mold with a multi-core pulling structure is mainly composed of an upper mold 1 and a lower mold 2. The upper mold 1 and the lower mold 2 cooperate with each other to form a cavity 3 between them, and the first core pulling mechanism is arranged on the front and rear sides of the cavity 3.
[0015] The second core-pulling mechanisms 4 are symmetrically arranged on the left and right sides of the cavity 3, and the two second core-pulling mechanisms 4 correspond to the upper left and upper right corners of the backrest 5. A single second core-pulling mechanism 4 includes an insert 41 and a cylinder 42. The insert 41 is movably embedded on the corresponding side edge of the cavity 3 and constitutes a side molding module of the backrest 5. A groove for embedding the insert 41 is provided between the upper mold 1 and the lower mold 2.
[0016] The cylinder 42 is arranged on the outside of the insert 41 and fixed on the upper mold 1. The cylinder 42 is fixedly connected to the insert 41 through a piston rod. When the upper mold 1 and the lower mold 2 are opened, the cylinder 42 can drive the insert 41 to move outward and open to realize the core pulling function, thereby ensuring that the backrest 5 is smoothly demolded.
[0017] Preferably, both left and right sides of the upper mold 1 and the lower mold 2 are provided with core-pulling channels for the corresponding inserts 41 to move left and right, so as to facilitate the core-pulling movement of the inserts 41.
[0018] Preferably, a slide rail is provided on the core pulling channel of the upper mold 1, and the extending direction of the slide rail is consistent with the moving direction of the insert 41. The insert 41 is slidably arranged on the slide rail, which is conducive to ensuring the stability of the core pulling movement.
[0019] Preferably, the insert 41 is connected to the edge of the cavity on one side of the upper mold 1 in an arc shape to form a side molding module of the backrest 5, which has a simple structure and is easy to process.
[0020] Preferably, the joint surface between the insert 41 and the upper mold 1 is an inclined surface, and the area of the inclined surface joint is larger, which is beneficial to reducing the risk of foaming overflow.
Claims
1. A backrest foaming mold with a multi-core-pulling structure, comprising an upper mold (1) and a lower mold (2), wherein the upper mold (1) and the lower mold (2) cooperate with each other to form a cavity (3) therebetween, and a first core-pulling mechanism is arranged on both sides of the cavity (3), characterized in that: The second core-pulling mechanisms (4) are symmetrically arranged on the left and right sides of the cavity (3), and the two second core-pulling mechanisms (4) correspond to the upper left corner and the upper right corner of the backrest (5) respectively. A single second core-pulling mechanism (4) includes an insert (41) and a cylinder (42). The insert (41) is movably embedded on the corresponding side edge of the cavity (3) and constitutes a side molding module of the backrest (5). A groove for embedding the insert (41) is provided between the upper mold (1) and the lower mold (2). The cylinder (42) is arranged on the outside of the insert (41) and is fixed on the upper mold (1). The cylinder (42) is fixedly connected to the insert (41) through a piston rod. When the upper mold (1) and the lower mold (2) are opened, the cylinder (42) can drive the insert (41) to move outward and open.
2. The backrest foaming mold with a multi-core-pulling structure according to claim 1, characterized in that: The left and right sides of the upper die (1) and the lower die (2) are both provided with core-pulling channels for the corresponding inserts (41) to move left and right.
3. The backrest foaming mold with multiple core-pulling structures according to claim 2, characterized in that: A slide rail is provided on the core-pulling channel of the upper mold (1); the extension direction of the slide rail is consistent with the movement direction of the insert (41); and the insert (41) is slidably arranged on the slide rail.
4. The backrest foaming mold with multiple core-pulling structures according to claim 1, characterized in that: The insert (41) is connected to the edge of the cavity on one side of the upper mold (1) in an arc shape to form a side molding module of the backrest (5).
5. The backrest foaming mold with multiple core-pulling structures according to claim 4, characterized in that: The joint surface between the insert (41) and the upper mold (1) is an inclined surface.