Demoulding structure driven by sliding block
By introducing a slider-driven mold release structure into the mold, the cooperation of the core pulling slider group and the driving block can achieve efficient movement of the core pulling block, solving the problem of large space occupancy of the mold core pulling module and reducing the mold cost.
Patent Information
- Application Number
- CN202421982648.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The mold core pulling assembly in the existing mold structure leads to problems such as increasing the specific mold volume and high manufacturing costs.
The mold release structure driven by the slider is adopted. By setting a core pulling slider group and driving block in the upper template, and using the core pulling rod to drive the driving block to slide, the core pulling block is placed and detached from the molding area, reducing the space occupied by the internal mold.
Complete the core extraction work in a limited space, reduce the internal space of the mold, reduce the mold specific accumulation, and reduce manufacturing costs.
Smart Images
Figure CN223147624U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, and particularly relates to a demoulding structure driven by a slider. Background Technique
[0002] An injection mold is a tool for plastic molding. It processes and heats plastic billets through a certain technological process, and then under the action of a certain pressure, sprays them out through a die head to form the required parts and products. Injection molds are widely used in modern industrial production because there are various processing forms of plastic products and many types of molds.
[0003] In the existing mold structure, mold core pulling is a common component. Its main function is to form cavities and chambers inside workpieces to facilitate the manufacture of workpieces and products with complex shapes. Generally, an oil cylinder and other accessories are used to drive the slider to move to achieve the core pulling function, which leads to a large increase in the volume of the mold and increases the manufacturing cost of the mold. Summary of the Utility Model
[0004] To solve the technical problems in the background technique, the utility model proposes a demoulding structure driven by a slider.
[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0006] A demoulding structure driven by a slider, including an upper template and a runner plate group. An upper mold core is arranged in the upper template, a core pulling slider group is arranged in the upper mold core. The core pulling slider group includes a movably arranged core pulling block and a driving block for driving the core pulling block to slide, and a core pulling rod for driving the driving block to slide is arranged on the runner plate group;
[0007] A molding area is formed in the upper mold core. The core pulling block has a core pulling part placed in the molding area. The core pulling block abuts against the driving block, and the core pulling part slides with the driving block and is placed in or separated from the molding area.
[0008] Preferably, a sliding convex part is formed on the core pulling block, a sliding groove for placing the sliding convex part is formed on the driving block, and the sliding groove is inclined. Through the above improvement, as the driving block slides in the upper mold core, due to the inclined arrangement of the sliding groove, the sliding convex part will slide in the sliding groove, so that the core pulling part can extend out or separate from the molding area under the action of the driving block to perform core pulling work.
[0009] Preferably, a first guiding inclined surface is formed on the driving block, a second guiding inclined surface cooperating with the first guiding inclined surface is formed on the core-pulling block, and the first guiding inclined surface abuts against the second guiding inclined surface. Through the above improvement, as the driving block slides, and during the movement, the first guiding inclined surface on the driving block moves along the second guiding inclined surface on the core-pulling block, so that the core-pulling block moves towards the side, and thus the core-pulling part is placed into or separated from the molding area. Compared with the conventional method of driving the slide block by accessories such as oil cylinders, a large amount of internal space of the mold is saved, so as to reduce the volume of the mold.
[0010] Preferably, an obliquely arranged driving groove is formed on the driving block, and the core-pulling rod is movably placed in the driving groove. Through the above improvement, the core-pulling rod is inserted into the driving groove. As the runner plate group approaches the upper template, the core-pulling rod continuously inserts into the driving groove, and the driving block slides under the action of the core-pulling rod, and forces the core-pulling part of the core-pulling block to be placed into the molding area. When the molding is completed, the runner plate group moves away from the upper module, so that the core-pulling rod is withdrawn from the driving groove, and the driving block retreats, and the core-pulling part of the core-pulling block is separated from the molding area, so as to realize the core-pulling function. Compared with the conventional method of driving the slide block by an oil cylinder for core-pulling, a large amount of internal space of the mold is saved, and the cost of the mold is reduced.
[0011] Preferably, a third guiding inclined surface is formed in the driving groove, a fourth guiding inclined surface cooperating with the third guiding inclined surface is formed on the core-pulling rod, and the third guiding inclined surface abuts against the fourth guiding inclined surface. Through the above improvement, during the insertion process of the core-pulling rod, the fourth guiding inclined surface on the core-pulling rod will slide along the third guiding inclined surface of the driving groove, and drive the driving block to slide, and drive the core-pulling block to move.
[0012] Preferably, a limiting groove is formed on the upper template, and the driving block is slidably arranged in the limiting groove. Through the above improvement, the stability of the driving block during sliding is improved to ensure the core-pulling quality.
[0013] Preferably, an anti-detachment convex block is arranged in the limiting groove, extension convex parts are formed on both sides of the driving block, and the anti-detachment convex block abuts against the upper part of the extension convex part. Through the above improvement, the stability of the driving block during sliding is further improved.
[0014] Preferably, core-pulling blocks are arranged on both sides of the driving block. Through the above improvement, the driving block synchronously drives the core-pulling blocks on both sides to slide, realizing that one driving block synchronously drives two core-pulling blocks for core-pulling, thus saving internal space and reducing the volume of the entire mold.
[0015] Preferably, a limiting convex portion is formed on the core-pulling rod. When the core-pulling portion is placed in the molding area, the limiting convex portion abuts against the driving block. Through the above improvement, when the core-pulling rod is inserted to a certain extent, the limiting convex portion will abut against the driving block, restricting the further insertion of the core-pulling rod and preventing the core-pulling portion from being inserted too deeply, which may cause poor molding.
[0016] Preferably, a core-pulling channel for the core-pulling portion to slide is formed on the upper mold core. Through the above improvement, the stability of the core-pulling portion during the sliding process is ensured, thus ensuring the core-pulling quality.
[0017] Compared with the prior art, the present utility model has the following advantages and beneficial effects:
[0018] By providing a core-pulling slider group on the upper template, the core-pulling slider group includes a movably arranged core-pulling block and a driving block for driving the core-pulling block to slide. A core-pulling rod for driving the driving block to slide is arranged on the runner plate group. When the mold is molded, the runner plate group moves towards the upper template, the core-pulling rod is inserted into the upper template and drives the driving block to move. As the driving block moves, the driving block forces the core-pulling portion on the core-pulling block to be inserted into the molding area. After molding, the runner plate group moves away from the upper template and the core-pulling rod is withdrawn from the upper module. The driving block retreats under the action of the core-pulling rod and drives the core-pulling block to push out of the molding area for core-pulling work, thereby completing the entire core-pulling work within a limited space. Compared with the traditional method of using a driving module such as an oil cylinder to drive the slider for core-pulling, it saves more space inside the mold and can effectively reduce the volume of the entire mold, thus reducing the manufacturing cost of the mold. Description of the Drawings
[0019] Figure 1 It is a schematic structural diagram of the whole of the present utility model;
[0020] Figure 2 It is a schematic structural diagram of the runner plate group and the core-pulling rod of the present utility model;
[0021] Figure 3 It is a schematic structural diagram of the upper template and the core-pulling slider group of the present utility model;
[0022] Figure 4 It is a schematic structural diagram of the limiting groove of the present utility model;
[0023] Figure 5 It is a schematic structural diagram of the core-pulling state of the core-pulling block of the present utility model;
[0024] Figure 6 It is a schematic structural diagram of the driving block of the present utility model;
[0025] Figure 7 It is a schematic structural diagram of the core-pulling block of the present utility model;
[0026] Figure 8 Structural schematic diagram of the core-pulling rod of the present utility model;
[0027] In the figure: 1, upper template; 2, runner plate group; 3, upper mold core; 4, core-pulling slider group; 5, molding area; 101, core-pulling block; 102, driving block; 103, core-pulling rod; 104, core-pulling part; 201, sliding convex part; 202, sliding groove; 203, first guiding inclined surface; 204, second guiding inclined surface; 205, driving groove; 206, third guiding inclined surface; 207, fourth guiding inclined surface; 208, limiting groove; 209, anti-disengagement convex block; 210, extending convex part; 301, limiting convex part; 302, core-pulling channel; Specific embodiments
[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0029] It should be understood that although the terms upper, middle, lower, top, one end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for easy understanding, rather than to define any directional or sequential limitations.
[0030] As Figure 1-8 shown, a demolding structure driven by a slider includes an upper template 1 and a runner plate group 2. An upper mold core 3 is arranged in the upper template 1, and a core-pulling slider group 4 is arranged in the upper mold core 3. The core-pulling slider group 4 includes a movably arranged core-pulling block 101 and a driving block 102 for driving the core-pulling block 101 to slide, and a core-pulling rod 103 for driving the driving block 102 to slide is arranged on the runner plate group 2.
[0031] Specifically, a molding area 5 is formed in the upper mold core 3. The core-pulling block 101 has a core-pulling part 104 placed in the molding area 5. The core-pulling block 101 abuts against the driving block 102, and the core-pulling part 104 slides with the driving block 102 and is placed in or disengaged from the molding area 5.
[0032] By arranging a core-pulling slider group 4 on the upper template 1, the core-pulling slider group 4 includes a movably arranged core-pulling block 101 and a driving block 102 for driving the core-pulling block 101 to slide. A core-pulling rod 103 for driving the driving block 102 to slide is arranged on the runner plate group 2. When the mold is being molded, the runner plate group 2 moves towards the upper template 1, the core-pulling rod 103 inserts into the upper template 1 and drives the driving block 102 to move. As the driving block 102 moves, the driving block 102 will force the core-pulling part 104 on the core-pulling block 101 to insert into the molding area 5. After the molding is completed, the runner plate group 2 moves away from the upper template 1 and the core-pulling rod 103 is withdrawn from the upper module. The driving block 102 retracts under the action of the core-pulling rod 103 and drives the core-pulling block 101 to push out of the molding area 5 for core-pulling work, so as to complete the entire core-pulling work within a limited space. Compared with the traditional method of using a driving module such as an oil cylinder to drive the slider for core-pulling, it saves more space inside the mold and can effectively reduce the volume of the entire mold, thereby reducing the manufacturing cost of the mold.
[0033] As Figure 1-8 shown, for a further explanation of the implementation method of the core-pulling slider group 4 in this embodiment, among them, a sliding convex part 201 is formed on the core-pulling block 101, a sliding groove 202 for the sliding convex part 201 to be placed is formed on the driving block 102, and the sliding groove 202 is inclined.
[0034] As the driving block 102 slides in the upper mold core 3, since the sliding groove 202 is inclined, the sliding convex part 201 will slide in the sliding groove 202, so that the core-pulling part 104 can extend out of or disengage from the molding area 5 under the action of the driving block 102 for core-pulling work.
[0035] Furthermore, a first guiding inclined surface 203 is formed on the driving block 102, a second guiding inclined surface 204 matching the first guiding inclined surface 203 is formed on the core-pulling block 101, and the first guiding inclined surface 203 fits the second guiding inclined surface 204.
[0036] The cooperation of the first guiding inclined surface 203 and the second guiding inclined surface 204 ensures the stability of the core-pulling block 101 during the sliding process. And as the driving block 102 slides, the first guiding inclined surface 203 on the driving block 102 moves along the second guiding inclined surface 204 on the core-pulling block 101 during the movement, so that the core-pulling block 101 moves towards the side, and the core-pulling part 104 is placed into or disengaged from the molding area 5, which saves a large amount of internal space of the mold compared with the conventional method of using accessories such as oil cylinders to drive the slider to move, so as to reduce the mold volume.
[0037] Preferably, a limiting groove 208 is formed on the upper template 1, and the driving block 102 is slidably arranged in the limiting groove 208, which improves the stability of the driving block 102 during the sliding process to ensure the core-pulling quality.
[0038] In addition, an anti - detachment protrusion 209 is provided in the limit groove 208, and extension protrusions 210 are formed on both sides of the driving block 102. The anti - detachment protrusion 209 abuts above the extension protrusion 210, further enhancing the stability of the driving block 102 during the sliding process.
[0039] Preferably, a core - pulling channel 302 for the core - pulling part 104 to slide is formed on the upper mold core 3, ensuring the stability of the core - pulling part 104 during the sliding process and thus ensuring the core - pulling quality.
[0040] As Figure 1-8 shown, for a further explanation of the cooperation between the core - pulling rod 103 and the driving block 102 in this embodiment, wherein, an obliquely - arranged driving groove 205 is formed on the driving block 102, and the core - pulling rod 103 is movably placed in the driving groove 205.
[0041] The core - pulling rod 103 is inserted into the driving groove 205. As the runner plate group 2 approaches the upper template 1, the core - pulling rod 103 continuously inserts into the driving groove 205. Under the action of the core - pulling rod 103, the driving block 102 slides, and forces the core - pulling part 104 of the core - pulling block 101 into the molding area 5. When the molding is completed, the runner plate group 2 moves away from the upper module, causing the core - pulling rod 103 to be withdrawn from the driving groove 205, the driving block 102 to retreat, and the core - pulling part 104 of the core - pulling block 101 to disengage from the molding area 5, so as to realize the core - pulling function. Compared with the conventional method of using an oil cylinder to drive a slider for core - pulling, a large amount of space inside the mold is saved, and the mold cost is reduced.
[0042] Specifically, a third guiding inclined surface 206 is formed in the driving groove 205, and a fourth guiding inclined surface 207 cooperating with the third guiding inclined surface 206 is formed on the core - pulling rod 103, and the third guiding inclined surface 206 abuts against the fourth guiding inclined surface 207.
[0043] The cooperation between the third guiding inclined surface 206 and the fourth guiding inclined surface 207 enhances the stability of the driving block 102 during the sliding process. During the insertion process of the core - pulling rod 103, the fourth guiding inclined surface 207 on the core - pulling rod 103 slides along the third guiding inclined surface 206 of the driving groove 205, drives the driving block 102 to slide, and drives the core - pulling block 101 to move, thereby driving the core - pulling block 101 to perform core - pulling.
[0044] Preferably, a limit protrusion 301 is formed on the core - pulling rod 103. When the core - pulling part 104 is placed in the molding area 5, the limit protrusion 301 abuts against the driving block 102. When the core - pulling rod 103 is inserted to a certain extent, the limit protrusion 301 will abut against the driving block 102, restricting the further insertion of the core - pulling rod 103 and preventing the core - pulling part 104 from being inserted too deep, resulting in poor molding.
[0045] As Figure 3, Figure 5 As shown, in some other embodiments, core-pulling blocks 101 are provided on both sides of the driving block 102. The driving block 102 synchronously drives the core-pulling blocks 101 on both sides to slide, so as to realize that one driving block 102 synchronously drives two core-pulling blocks 101 to perform core-pulling, thereby saving the internal space and reducing the volume of the entire mold.
[0046] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.
Claims
1. A demolding structure driven by a slider, characterized in that It includes an upper template (1) and a runner plate group (2). An upper mold core (3) is arranged in the upper template (1), and a core-pulling slider group (4) is arranged in the upper mold core (3). The core-pulling slider group (4) includes a movably arranged core-pulling block (101) and a driving block (102) for driving the core-pulling block (101) to slide. A core-pulling rod (103) for driving the driving block (102) to slide is arranged on the runner plate group (2). A molding area (5) is formed in the upper mold core (3). The core-pulling block (101) has a core-pulling part (104) placed in the molding area (5). The core-pulling block (101) abuts against the driving block (102). The core-pulling part (104) slides with the driving block (102) and is placed in or disengaged from the molding area (5).
2. A demolding structure driven by a slider according to claim 1, characterized in that A sliding convex part (201) is formed on the core-pulling block (101), and a sliding groove (202) for placing the sliding convex part (201) is formed on the driving block (102), and the sliding groove (202) is inclined.
3. A demolding structure driven by a slider according to claim 1, wherein, A first guiding inclined surface (203) is formed on the driving block (102), and a second guiding inclined surface (204) matching with the first guiding inclined surface (203) is formed on the core-pulling block (101), and the first guiding inclined surface (203) fits the second guiding inclined surface (204).
4. A demolding structure driven by a slider according to claim 1, characterized in that, An obliquely arranged driving groove (205) is formed on the driving block (102), and the core-pulling rod (103) is movably placed in the driving groove (205).
5. The demolding structure driven by a slider according to claim 4, characterized in that, A third guiding inclined surface (206) is formed in the driving groove (205), and a fourth guiding inclined surface (207) matching with the third guiding inclined surface (206) is formed on the core-pulling rod (103), and the third guiding inclined surface (206) fits the fourth guiding inclined surface (207).
6. A demolding structure driven by a slider according to claim 1, characterized in that, A limiting groove (208) is formed on the upper template (1), and the driving block (102) is slidably arranged in the limiting groove (208).
7. A demolding structure driven by a slider according to claim 6, characterized in that, An anti-disengagement convex block (209) is arranged in the limiting groove (208). Extension convex parts (210) are formed on both sides of the driving block (102), and the anti-disengagement convex block (209) abuts against the upper part of the extension convex parts (210).
8. A demolding structure driven by a slider according to claim 1, characterized in that, Core-pulling blocks (101) are arranged on both sides of the driving block (102).
9. A demolding structure driven by a slider according to claim 1, characterized in that, A limiting convex part (301) is formed on the core-pulling rod (103). When the core-pulling part (104) is placed in the molding area (5), the limiting convex part (301) abuts against the driving block (102).
10. A demolding structure driven by a slider according to claim 1, characterized in that, A core-pulling channel (302) for the core-pulling part (104) to slide is formed on the upper mold core (3).