Core-pulling demolding device and injection molding production system
By designing a core release device including a bidirectional core head and a side core head, the problem of excessive length of injection molded runners in the prior art is solved, and the simultaneous release and shortening of the runner length of the two molded products is achieved.
Patent Information
- Application Number
- CN202421916224.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-08-07
AI Technical Summary
In the existing injection molding technology, the core-release device on both sides will cause the injection molding runner to be too long and the weight will be too heavy, causing inconvenience to the user.
A core mold release device is designed, including a fixed seat, a bidirectional core head and a side core head. Through the cooperation of the bidirectional core head and the side core head, the two molded products are simultaneously disengaged, and the length of the injection molded runner is shortened.
Through the design of bidirectional core head and side core head, only three core heads are needed to remove two molded products at the same time, shortening the length of the injection molded runner, improving production efficiency, and avoiding the problem of excessive runner weight.
Smart Images
Figure CN222886196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of injection molds, and particularly relates to a core-pulling demolding device and an injection molding production system. Background Art
[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a variety of flower patterns and colors, the shape can range from simple to complex, the size can range from large to small, and the product size is precise, the product is easy to update, and it can form complex parts. Injection molding is suitable for mass production and molding processing fields of complex-shaped products. In related technologies, in order to improve the manufacturing efficiency of injection molding, a split-type double-sided core-pulling is designed for each product in the core-pulling demolding process. Therefore, a set of side core pins needs to be designed for each product, and the side core pins are pulled out from both sides of the product during the demolding process. However, using two-sided core-pulling demolding will cause the runner length for injecting plastic into the mold cavity to be too long, and then the runner weight will be too heavy, which brings inconvenience to users. Summary of the Utility Model
[0003] Regarding the problem in related technologies that the core-pulling demolding device with a two-sided core-pulling form will cause the runner length for injecting plastic into the mold cavity to be too long, resulting in the runner weight being too heavy and bringing inconvenience to users.
[0004] The present application provides a core-pulling demolding device, which includes: a fixed seat, at least one two-way core head, and at least two side core heads; wherein,
[0005] The fixed seat is provided with a mold device and a core-removing component; at least one two-way core head is arranged on the fixed seat, and the two-way core head is located inside the mold device; at least two side core heads are movably installed on the fixed seat, the side core heads are located inside the mold device, the two side core heads are arranged at intervals on both sides of the two-way core head, and the two side core heads can move away from each other on the fixed seat to drive two molded products to be separated from both sides of the two-way core head first, and then cooperate with the core-removing component to separate from the side core heads.
[0006] In combination with the first aspect, in one embodiment, the core-removing component includes:
[0007] At least two clamping plates, each clamping plate corresponds to the position of one side core head, and the clamping plate is used to cooperate with the moving two-way core head to pull the molded product out of the side core head.
[0008] In combination with the first aspect, in one embodiment, the mold device includes:
[0009] A moving template, on which at least two moving mold cavities are provided;
[0010] A fixed template, on which at least two fixed mold cavities are inlaid, and each of the fixed mold cavities is matched with one of the movable mold cavities.
[0011] Combined with the first aspect, in one embodiment, it further includes:
[0012] At least two core-pulling sliders, which are arranged on the fixed seat, each of the core-pulling sliders is connected to the side core head, and at least one inclined guide post is arranged through each of the core-pulling sliders. One end of the inclined guide post is connected to the fixed template, and the other end passes through the movable hole of the core-pulling slider and extends outside the fixed seat. The inclined guide post can move along the movable hole of the core-pulling slider and drive the fixed template to move, so that the fixed mold cavity is away from the molded product.
[0013] Combined with the first aspect, in one embodiment, an avoidance structure is arranged in the core-pulling slider, and the core-pulling slider is configured as:
[0014] When the inclined guide post moves from the initial position along the movable hole of the core-pulling slider to the first node position, the inclined guide post drives the fixed template to move. When the core-pulling slider reaches the first node position and continues to move along the original direction, the inclined guide post contacts the core-pulling slider and drives the core-pulling slider and the side core head to move.
[0015] Combined with the first aspect, in one embodiment, the fixed seat includes:
[0016] A base on which the movable template is provided;
[0017] A movable backing plate, which is movably connected to the base through a movable link rod. The movable backing plate is provided with the bidirectional core head and the bidirectional core head. The movable backing plate is located between the movable template and the fixed template, and the movable backing plate is detachably connected to the fixed template.
[0018] Combined with the first aspect, in one embodiment, the movable backing plate and the fixed template are detachably connected through equal-height screws.
[0019] Combined with the first aspect, in one embodiment, the movable backing plate and the fixed template are detachably connected through nylon hooks.
[0020] Combined with the first aspect, in one embodiment, two bidirectional core heads are arranged in the middle of the fixed seat, and four side core heads are symmetrically arranged in pairs on both sides of the fixed seat.
[0021] In the second aspect, the embodiment of the present application provides an injection molding production system, which includes: the core-pulling and demolding device as described in any one of the above.
[0022] The beneficial effects brought by the technical solution provided in the embodiments of the present application at least include:
[0023] In the present application, by providing a bidirectional core head and side core heads located on both sides of the bidirectional core head, two molded products are simultaneously ejected from the core head, and thus, the simultaneous core removal of two molded products is achieved with only three core heads, thereby shortening the length of the injection runner. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0025] Figure 1 It is a top view of the core-pulling and demolding device in the embodiments of the present application;
[0026] Figure 2 It is a structural schematic diagram of the core-pulling and demolding device in the embodiments of the present application;
[0027] Figure 3 It is a cross-sectional view of the core-pulling and demolding device in the initial state in the embodiments of the present application;
[0028] Figure 4 It is a cross-sectional view of the core-pulling and demolding device in the first step in the embodiments of the present application;
[0029] Figure 5 It is a cross-sectional view of the core-pulling and demolding device in the second step in the embodiments of the present application;
[0030] Figure 6 It is a cross-sectional view of the core-pulling and demolding device in the third step in the embodiments of the present application;
[0031] Figure 7 It is a cross-sectional view of the core-pulling and demolding device in the fourth step in the embodiments of the present application.
[0032] In the figure: 1, fixed seat; 11, bidirectional core head; 12, side core head; 13, tightening plate; 14, base; 15, movable backing plate; 16, movable link; 2, molded product; 3, moving template; 31, moving mold cavity; 4, fixed template; 41, fixed mold cavity; 5, core-pulling slider; 6, inclined guide post; 7, equal-height screw; 8, nylon hook. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0033] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solution in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0034] In related technologies, the core-pulling and demolding device with a core-pulling form on both sides will cause the length of the runner for injecting plastic into the mold cavity to be too long, making the runner too heavy and bringing inconvenience to users.
[0035] In a first aspect, as Figure 1 and Figure 2 shown, the embodiment of this application provides a core-pulling and demolding device, which includes: a fixed seat 1, at least one bidirectional core head 11, and at least two side core heads 12; wherein,
[0036] The fixed seat 1 is provided with a mold device and a core-removing component; at least one bidirectional core head 11 is arranged on the fixed seat 1, and the bidirectional core head 11 is located inside the mold device; at least two side core heads 12 are movably installed on the fixed seat 1, and the side core heads 12 are located inside the mold device. The two side core heads 12 are arranged at intervals on both sides of the bidirectional core head 11, and the two side core heads 12 can move away from each other on the fixed seat 1 to drive two molded products 2 to be separated from both sides of the bidirectional core head 11 first, and then cooperate with the core-removing component to separate from the side core heads 12.
[0037] It should be noted that in this application, by setting the bidirectional core head 11 and the side core heads 12 on both sides of the bidirectional core head 11, two molded products 2 are simultaneously removed from the core head, and thus only three core heads are used to realize the simultaneous core removal of two blocked molded products 2, thereby reducing the length of the injection runner. Further, the core-removing component is used to remove the molded products 2 on the side core heads 12 from the core-removing component.
[0038] Preferably, the side core head 12 is provided with an anti-pulling stop position so that when the side core head 12 moves by itself, it can drive the molded product 2 to separate from the bidirectional core head 11.
[0039] In some preferred embodiments, the core-removing component includes: at least two clamping plates 13, each clamping plate 13 corresponds to one side core head 12 in position, and the clamping plate 13 is used to cooperate with the moving bidirectional core head 11 to pull out the molded product 2 from the side core head 12.
[0040] It can be understood that in this application, the rib plate 13 is used as the core-pulling component, and the formed product 2 is laterally pulled out to realize product demolding, which greatly shortens the runner length and there are no ejector pin marks on the product appearance.
[0041] In some specific embodiments, the mold device includes: a moving template 3 and a fixed template 4; wherein,
[0042] The moving template 3 is provided with at least two moving mold cavities 31; the fixed template 4 is inlaid with at least two fixed mold cavities 41, and each of the fixed mold cavities 41 is matched with one of the moving mold cavities 31.
[0043] It is worth noting that the moving mold cavity 31 and the fixed mold cavity 41 cooperate with each other as the injection mold.
[0044] Further, the core-pulling and demolding device further includes: at least two core-pulling sliders 5, which are arranged on the fixed seat 1, each of the core-pulling sliders 5 is connected to the side core head 12, and at least one inclined guide pillar 6 is penetrated through each of the core-pulling sliders 5. One end of the inclined guide pillar 6 is connected to the fixed template 4, and the other end extends outside the fixed seat 1 through the moving hole of the core-pulling slider 5. The inclined guide pillar 6 can move along the moving hole of the core-pulling slider 5 and drive the fixed template 4 to move, so that the fixed mold cavity 41 moves away from the formed product 2.
[0045] It should be noted that during the movement of the inclined guide pillar 6 along the moving hole of the core-pulling slider 5, it will drive the fixed template 4 to move upward, so that the fixed mold cavity 41 leaves the formed product 2 and performs fixed mold opening.
[0046] In some preferred embodiments, a clearance structure is arranged in the core-pulling slider 5, and the core-pulling slider 5 is configured as:
[0047] When the inclined guide pillar 6 moves from the initial position along the moving hole of the core-pulling slider 5 to the first node position, the inclined guide pillar 6 drives the fixed template 4 to move. When the core-pulling slider 5 reaches the first node position and continues to move in the original direction, the inclined guide pillar 6 contacts the core-pulling slider 5 and drives the core-pulling slider 5 and the side core head 12 to move.
[0048] It can be understood that in this application, the inclined guide pillar 6 drives the fixed template 4 and the core-pulling slider 5 to move successively. After the fixed template 4 moves, the fixed mold is first opened, and then the core-pulling slider 5 is driven to move to drive the side core head 12 to move and perform the core-pulling action of the side core head 12.
[0049] In some preferred embodiments, such as Figure 3As shown, the movable backing plate 15 is detachably connected to the fixed template 4 by equal-height screws 7. Further, the movable backing plate 15 is detachably connected to the fixed template 4 by nylon hooks 8.
[0050] It should be noted that the nylon hooks 8 can enable the movable backing plate 15 to move with the fixed template 4 integrally for a certain stroke and then complete the opening of the moving die. After the nylon hooks 8 are disengaged, the movable backing plate 15 does not move with the fixed template 4.
[0051] In some optional embodiments, two bidirectional core heads 11 are provided in the middle of the fixed seat 1, and four side core heads 12 are symmetrically arranged in pairs on both sides of the fixed seat 1.
[0052] It can be understood that in this application, one bidirectional core head 11 and two side core heads 12 are used as a set of core-pulling components, and each set of core-pulling components can simultaneously demold two molded products 2. In this application, one set or multiple sets of core-pulling components can be provided on the fixed seat 1 according to requirements such as the length of the runner and the production efficiency of the product to improve the working efficiency.
[0053] The working principle of the core-pulling and demolding device of this application includes:
[0054] Step S1: Apply an upward driving force to the fixed template 4 of the core-pulling and demolding device in the initial state (as shown) through the inclined guide post 6 so that the fixed template 4, the movable backing plate 15, and the molded product 2 on the movable backing plate 15 move upward simultaneously to move away from the moving template 3 until, as shown, the moving die cavity 31 leaves the molded product 2, and then the opening of the moving die is completed. At this time, the gate is cut off. Figure 3 It should be noted that in step S1, the movable backing plate 15 is connected to the fixed template 4 by nylon hooks 8, so the fixed template 4 and the movable backing plate 15 can move upward integrally away from the moving die cavity 31. Figure 4
[0055] Step S2: Disengage the nylon hooks 8, and then drive the inclined guide post 6 to continue to move to drive the fixed template 4 to continue to move in the original direction until, as shown, the fixed die cavity 41 of the fixed template 4 is separated from the molded product 2, and the opening of the fixed die is completed.
[0056] Figure 5
[0057] It should be noted that in step S2, since the nylon hooks 8 are disengaged, the fixed template 4 and the movable backing plate 15 no longer move together, and a relative displacement occurs between the two, so the fixed die cavity 41 is separated from the molded product 2 on the movable backing plate 15. Further, since a clearance structure is provided in the core-pulling slider 5, in steps S1 and S2, although the inclined guide post 6 moves in the core-pulling slider 5, it will not drive the core-pulling slider 5 to move, and thus will not drive the side core head 12 to move.
[0058] Step S3: As shown in Figure 6 , after the angled guide pillar 6 drives the fixed mold plate 4 to open the mold, it continues to move in the original direction, driving the core-pulling slider 5 and the side core head 12 to move. The side core head 12 then drives the two molded products 2 to move and first separate from the two-way core head 11 in the middle, and then continues to move and cooperate with the clamping plate 13 to make the molded products 2 fall off the side core head 12.
[0059] It should be noted that the side core head 12 is provided with an anti-pull stop position, and the two molded products 2 are fixed on the two side core heads 12 through the anti-pull stop position to make the molded products 2 separate from the two-way core head 11 in the middle. Further, after the molded products 2 separate from the two-way core head 11 in the middle, they continue to move in the original direction to reach the position of the clamping plate 13, and the clamping plate 13 on the side will pull out the molded products 2 from the side core head 12 to complete the core removal of the molded products 2.
[0060] Step S4: As shown in Figure 7 , the movable link 16 rises to make the part leave the entire mold production forming runner.
[0061] It is worth noting that, as shown in Figure 7 , the distance marked in step 1 in the figure is the distance that the fixed mold plate 4 and the movable backing plate 15 perform the moving mold opening movement in step S1. The distance marked in step 2 in the figure is the distance that the fixed mold plate 4 moves to perform the fixed mold opening action in step S2. The distance marked in step 3 in the figure is the total distance that the side core head 12 moves in the process of making the molded product first separate from the two-way core head 11 and then be pulled off the side core head 12 by the clamping plate 13. The distance marked in step 4 in the figure is the distance that the movable link 16 moves to push the part away from the runner in step S4.
[0062] In a second aspect, the present application provides an injection molding production system, which includes a core-pulling and demolding device. The core-pulling and demolding device includes: a fixed seat 1, at least one two-way core head 11 and at least two side core heads 12; wherein,
[0063] The fixed seat 1 is provided with a mold device and a core-removing component; at least one two-way core head 11 is arranged on the fixed seat 1, and the two-way core head 11 is located inside the mold device; at least two side core heads 12 are movably installed on the fixed seat 1, the side core heads 12 are located inside the mold device, the two side core heads 12 are arranged at intervals on both sides of the two-way core head 11, and the two side core heads 12 can move away from each other on the fixed seat 1 to drive the two molded products 2 to first separate from both sides of the two-way core head 11 respectively, and then cooperate with the core-removing component to separate from the side core heads 12.
[0064] It should be noted that in the present application, by providing a bidirectional core head 11 and side core heads 12 located on both sides of the bidirectional core head 11, two molded products 2 are simultaneously ejected from the core heads. Furthermore, only three core heads are used to achieve the simultaneous core removal of the two molded products 2, thereby reducing the length of the injection runner. Further, the core removal assembly is used to eject the molded product 2 on the side core head 12 from the core removal assembly.
[0065] Preferably, an inverse draw stop is provided on the side core head 12 so that when the side core head 12 moves itself, it can drive the molded product 2 to separate from the bidirectional core head 11.
[0066] In some preferred embodiments, the core removal assembly includes: at least two clamping plates 13, each of the clamping plates 13 corresponding to a position of one of the side core heads 12, and the clamping plates 13 are used to cooperate with the moving bidirectional core head 11 to clamp the molded product 2 out of the side core head 12.
[0067] It can be understood that in the present application, the clamping plates 13 are used as the core removal assembly, and the molded product 2 is laterally clamped out to realize product demolding, greatly shortening the runner length, and there is no ejector pin mark on the product appearance.
[0068] In some specific embodiments, the mold device includes: a moving template 3 and a fixed template 4; wherein,
[0069] The moving template 3 is provided with at least two moving mold cavities 31; the fixed template 4 is inlaid with at least two fixed mold cavities 41, and each of the fixed mold cavities 41 matches one of the moving mold cavities 31.
[0070] It should be noted that the moving mold cavity 31 and the fixed mold cavity 41 cooperate with each other as the injection mold.
[0071] Further, the core-pulling demolding device further includes: at least two core-pulling sliders 5, which are arranged on the fixed seat 1, each of the core-pulling sliders 5 is connected to the side core head 12, and at least one inclined guide post 6 is penetrated through each of the core-pulling sliders 5. One end of the inclined guide post 6 is connected to the fixed template 4, and the other end extends outside the fixed seat 1 through the moving hole of the core-pulling slider 5. The inclined guide post 6 can move along the moving hole of the core-pulling slider 5 and drive the fixed template 4 to move, so that the fixed mold cavity 41 moves away from the molded product 2.
[0072] It should be noted that during the movement of the inclined guide post 6 along the moving hole of the core-pulling slider 5, it will drive the fixed template 4 to move upward, so that the fixed mold cavity 41 leaves the molded product 2, and the fixed mold is opened.
[0073] In some preferred embodiments, an avoidance structure is provided inside the core-pulling slider 5, and the core-pulling slider 5 is configured as:
[0074] When the angled guide pin 6 moves from the initial position along the moving hole of the core-pulling slider 5 to the first node position, the angled guide pin 6 drives the fixed mold plate 4 to move. When the core-pulling slider 5 reaches the first node position and continues to move in the original direction, the angled guide pin 6 contacts the core-pulling slider 5 and drives the core-pulling slider 5 and the side core head 12 to move.
[0075] It can be understood that in this application, the angled guide pin 6 drives the fixed mold plate 4 and the core-pulling slider 5 to move successively. After the fixed mold plate 4 moves, the fixed mold is first opened, and then the core-pulling slider 5 is driven to move, so as to drive the side core head 12 to move and perform the core-pulling action of the side core head 12.
[0076] In some preferred embodiments, such as Figure 3 shown, the movable backing plate 15 and the fixed mold plate 4 are detachably connected by equal-height screws 7. Further, the movable backing plate 15 and the fixed mold plate 4 are detachably connected by nylon hooks 8.
[0077] It should be noted that the nylon hook 8 enables the movable backing plate 15 to move with the fixed mold plate 4 integrally for a certain stroke and then complete the moving mold opening. After the nylon hook 8 is disengaged, the movable backing plate 15 does not move with the fixed mold plate 4.
[0078] In some alternative embodiments, two of the two-way core heads 11 are provided in the middle of the fixed seat 1, and four of the side core heads 12 are symmetrically arranged in pairs on both sides of the fixed seat 1.
[0079] It can be understood that in this application, one two-way core head 11 and two side core heads 12 are used as a set of core-pulling components, and each set of core-pulling components can simultaneously core two molded products 2. In this application, one or more sets of core-pulling components can be arranged on the fixed seat 1 according to requirements such as the runner length and product production efficiency to improve work efficiency.
[0080] In summary, in this application, by providing a two-way core head and side core heads on both sides of the two-way core head, two molded products can be simultaneously removed from the core head, and thus only three core heads are used to simultaneously core two blocked molded products, thereby reducing the length of the injection runner. Further, the rib plate 13 is used as the core-pulling component, and the molded product can be laterally pulled out by only moving the side core head to realize product demolding, greatly shortening the runner length and leaving no ejector pin marks on the product appearance.
[0081] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0082] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of another identical element in the process, method, article or device comprising the said element.
[0083] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.
Claims
1. A core-pulling demoulding device, characterized in that: include: A fixed seat (1) on which a mold device and a core stripping assembly are arranged; At least one bidirectional core head (11), which is arranged on the fixing seat (1), and the bidirectional core head (11) is located in the mold equipment; At least two side core heads (12) are movably mounted on the fixed seat (1). The side core heads (12) are located in the mold device. The two side core heads (12) are spaced apart on both sides of the bidirectional core head (11). The two side core heads (12) can move back and forth on the fixed seat (1) to drive two molded products (2) to first separate from the two sides of the bidirectional core head (11) and then cooperate with the core stripping assembly to separate from the side core heads (12).
2. The core-pulling demoulding device according to claim 1, characterized in that: The core stripping assembly comprises: At least two tie plates (13), each of the tie plates (13) corresponds to the position of one of the side core heads (12), and the tie plates (13) are used to cooperate with the movable bidirectional core head (11) to tie the molded product (2) out of the side core head (12).
3. The core-pulling demoulding device according to claim 1, characterized in that: The mold equipment includes: A movable mold plate (3), wherein the movable mold plate (3) is provided with at least two movable mold cavities (31); A fixed mold plate (4), wherein at least two fixed mold cavities (41) are inlaid on the fixed mold plate (4), and each of the fixed mold cavities (41) matches with one of the movable mold cavities (31).
4. The core-pulling demoulding device according to claim 3, characterized in that: Also includes: At least two core-pulling sliders (5) are arranged on the fixed seat (1), each of the core-pulling sliders (5) is connected to the side core head (12), and each of the core-pulling sliders (5) is penetrated by at least one inclined guide column (6), one end of the inclined guide column (6) is connected to the fixed mold plate (4), and the other end passes through the movable hole of the core-pulling slider (5) and extends to the outside of the fixed seat (1), and the inclined guide column (6) can move along the movable hole of the core-pulling slider (5) and drive the fixed mold plate (4) to move, so that the fixed mold cavity (41) is away from the molded product (2).
5. The core-pulling demoulding device according to claim 4, characterized in that: The core-pulling slider (5) is provided with a space-avoiding structure, and the core-pulling slider (5) is configured as follows: When the inclined guide column (6) moves from the initial position along the movable hole of the core-pulling slider (5) to the first node position, the inclined guide column (6) drives the fixed template (4) to move. When the core-pulling slider (5) reaches the first node position and continues to move along the original direction, the inclined guide column (6) contacts the core-pulling slider (5) and drives the core-pulling slider (5) and the side core head (12) to move.
6. The core-pulling demoulding device according to claim 3, characterized in that: The fixing seat (1) comprises: A base (14) on which the movable template (3) is arranged; A movable pad (15) is movably connected to the base (14) via a movable connecting rod (16); the bidirectional core head (11) and the bidirectional core head (11) are provided on the movable pad (15); the movable pad (15) is located between the movable die plate (3) and the fixed die plate (4); and the movable pad (15) is detachably connected to the fixed die plate (4).
7. The core-pulling demoulding device according to claim 6, characterized in that: The movable pad (15) and the fixed mold plate (4) are detachably connected via equal-height screws (7).
8. The core-pulling demoulding device according to claim 7, characterized in that: The movable pad (15) is detachably connected to the fixed mold plate (4) via a nylon hook (8).
9. The core-pulling demoulding device according to claim 1, characterized in that: Two bidirectional core heads (11) are arranged in the middle of the fixing seat (1), and four side core heads (12) are symmetrically arranged in pairs on both sides of the fixing seat (1).
10. An injection molding production system, characterized in that: include: A core-pulling and demoulding device as described in any one of claims 1 to 9.