A secondary core drawing structure for a double-layer core of different angles

Abstract

The application provides a secondary core-pulling demolding structure for double-layer cores of different angles, which comprises a sliding assembly, an inclined guide column and a power assembly; the sliding assembly comprises a core slider, a sliding piece seat, a core sliding piece, a limiting plate and a bottom plate, the limiting plate is located between the sliding piece seat and the bottom plate and is fixedly connected with the core slider; the inclined guide column is fixedly connected with the movable die plate, the core slider is provided with a sliding channel for penetrating the inclined guide column, the sliding piece seat is sleeved on the inclined guide column and is movably connected with the limiting plate, and the sliding piece seat is fixedly connected with the core sliding piece; the bottom plate is fixedly connected with the fixed die plate, the power assembly is fixedly connected with the core slider through a power rod, and the core slider is driven to slide along the bottom plate through the power rod; when the movable die plate of the mold is moved upward, the movable die plate drives the inclined guide column to move vertically upward, the inclined guide column drives the sliding piece seat to displace along the limiting plate, and the core sliding piece is separated from the product; through the secondary linkage core-pulling demolding action, the problem that the double-layer cores of different angles are difficult to be core-pulled and demolded is solved.

Description

Technical Field

[0001] This application relates to the field of injection mold technology, specifically to a secondary core-pulling and demolding structure for double-layer cores at different angles. Background Technology

[0002] Plastic products need to be cast and molded through the layout and structure of the internal cavity and core of the injection mold. When encountering some complex products, especially when there is a second core at different angles inside the first core used for product molding, it is impossible to achieve complete demolding in one go.

[0003] However, connecting each core with a separate core-pulling mechanism would result in an excessively large mold volume and higher manufacturing costs; firstly, extracting the second-layer cores at different angles and then demolding the first-layer core would also make the core-pulling and demolding process more complex and difficult; furthermore, when extracting the second-layer cores at different angles, the core-pulling trajectory may interfere due to positional limitations, causing the cores to get stuck and unable to be extracted. Utility Model Content

[0004] In view of the aforementioned problems, this application is proposed to provide a secondary core-pulling and demolding structure for double-layer cores at different angles that overcomes or at least partially solves the aforementioned problems, comprising: A sliding assembly, an inclined guide post, and a power assembly; wherein the sliding assembly includes a core slider, a slide block seat, a core slide, a limiting plate, and a base plate, the limiting plate being located between the slide block seat and the base plate and being fixedly connected to the core slider; The inclined guide post is fixedly connected to the moving mold plate, the core slider is provided with a sliding channel for passing through the inclined guide post, the slide block is sleeved on the inclined guide post and movably connected to the limiting plate, and the slide block is fixedly connected to the core slide block. The base plate is fixedly connected to the mold template, and the power assembly is fixedly connected to the core slider through a power rod, and the core slider is driven to slide along the base plate through the power rod; When the moving mold plate is moved upward, the moving mold plate drives the inclined guide post to move vertically upward, and the inclined guide post drives the slide block seat to move along the limiting plate, so that the core slide block is pulled out of the product.

[0005] Specifically, the inclined guide post is obliquely inserted into the slider seat; When the moving template drives the inclined guide post to move upward, the vertical movement of the inclined guide post is converted into a horizontal displacement of the slider seat.

[0006] Specifically, the limiting plate has a U-shaped opening, the opening direction of which is the same as the displacement direction of the slider seat, and the inclined guide post passes through the limiting plate through the U-shaped opening.

[0007] Specifically, the limiting plate is fixedly provided with a slider seat limiter, the slider seat limiter is provided with a spring, and the bottom of the slider seat is provided with at least two slider seat limiting grooves that cooperate with the slider seat limiter.

[0008] Specifically, the bottom of the limiting plate is provided with at least four slider limiting grooves aligned in two rows, and the base plate is fixedly provided with two slider limiters that cooperate with the slider limiting grooves.

[0009] Specifically, it also includes a slider insert for limiting the movement of the core slider, the slider insert being fixedly connected to the moving template of the mold.

[0010] Specifically, the width of the slider insert is the same as that of the slider seat, the height of the slider insert is not less than the height of the core slider, the slider insert is fitted to the slider seat and the fitting surface is at the same inclination angle as the inclined guide post.

[0011] Specifically, the core slide is L-shaped, and the slide seat is provided with a mounting groove corresponding to the shape of the core slide. The core slide and the slide seat are fitted and fixed through the mounting groove.

[0012] Specifically, the power rod and the core slider are respectively provided with mutually cooperating anti-disengagement structures; Specifically, the base plate is provided with an opening for the inclined guide post to pass through, and the opening extends along the lateral displacement direction of the inclined guide post during the upward process.

[0013] This application has the following advantages: In the embodiments of this application, addressing the difficulty in implementing the core-pulling and demolding process for double-layered cores with different angles in the prior art, this application provides a solution: a secondary core-pulling and demolding structure for double-layered cores at different angles, applied to injection molds, characterized by comprising a sliding assembly, an inclined guide post, and a power assembly; wherein, the sliding assembly includes a core slider, a sliding plate seat, a core sliding plate, a limiting plate, and a base plate, the limiting plate being located between the sliding plate seat and the base plate and fixedly connected to the core slider; the inclined guide post being fixedly connected to the moving mold plate. The core slider is provided with a sliding channel for the inclined guide post to pass through. The slider seat is sleeved on the inclined guide post and movably connected to the limiting plate. The slider seat is fixedly connected to the core slider. The base plate is fixedly connected to the mold fixed platen. The power assembly is fixedly connected to the core slider through a power rod, which drives the core slider to slide along the base plate. When the mold moving platen moves upward, the mold moving platen drives the inclined guide post to move vertically upward. The inclined guide post drives the slider seat to move along the limiting plate, causing the core slider to be pulled out of the product. Through the linkage of the inclined guide post and the power assembly, the core slider and the core slider are driven forward in sequence, performing a secondary demolding action to separate the outer core and inner core at different angles. This solves the technical problem of difficult core pulling and demolding of cores with different angles and double-layer structures. It achieves the effect of complete demolding through secondary core pulling by linkage of dual drive components, improving the demolding efficiency of complex structure products after injection molding. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is an exploded view of a secondary core-pulling and demolding structure for a double-layer core at different angles, provided in an embodiment of this application, including a sliding assembly, an inclined guide post, and a power assembly; Figure 2 This is a schematic diagram of a secondary core-pulling and demolding structure for a double-layer core at different angles, provided in an embodiment of this application. Figure 3 This is a schematic diagram of the structure of a limiting plate for a secondary core-pulling and demolding structure for a double-layer core at different angles, provided in an embodiment of this application; Figure 4 This is a schematic diagram of the base plate of a secondary core-pulling and demolding structure for a double-layer core at different angles, provided in an embodiment of this application. The reference numerals in the accompanying drawings are as follows: 100. Sliding assembly; 110. Core slider; 120. Slider seat; 130. Core slider; 140. Limiting plate; 141. Slider seat limiter; 150. Base plate; 151. Slider limiter; 200. Inclined guide post; 300. Power assembly; 310. Power rod; 400. Slider insert. Detailed Implementation

[0015] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0016] The inventors discovered through analysis of existing technologies that when encountering some complex plastic products, especially when there are second cores at different angles within the first core used for product molding, complete demolding cannot be achieved by pulling out the cores in one go. The core-pulling demolding process becomes very complex and difficult. At the same time, pulling out all the cores can cause jamming due to interference of the core-pulling trajectory. Pulling out each core sequentially leads to low core-pulling efficiency, and the need to set up a cooperating core-pulling mechanism for each core results in high device manufacturing costs.

[0017] Reference Figure 1 This illustration shows a structural diagram of a secondary core-pulling and demolding structure for double-layer cores at different angles, according to an embodiment of this application. The structure includes a sliding assembly 100, an inclined guide post 200, and a power assembly 300. The sliding assembly 100 includes a core slider 110, a slide block seat 120, a core slide block 130, a limiting plate 140, and a base plate 150. The limiting plate 140 is located between the slide block seat 120 and the base plate 150, and is fixedly connected to the core slider 110. The inclined guide post 200 is fixedly connected to the moving mold template. The core slider 110 is provided with a sliding channel for passing through the inclined guide post 200. The slide block seat 120 is sleeved on the inclined guide post 200 and movably connected to the limiting plate 140. The slide block seat 120 is fixedly connected to the core slide block 130. The base plate 150 is fixedly connected to the mold fixed template. The power assembly 300 is fixedly connected to the core slider 110 through the power rod 310. The power rod 310 drives the core slider 110 to slide along the base plate 150. When the mold moving template moves upward, the mold moving template drives the inclined guide post 200 to move vertically upward. The inclined guide post 200 drives the slide block seat 120 to move along the limiting plate 140, so that the core slide block 130 is pulled out from the product.

[0018] In the embodiments of this application, the inclined guide post 200 and the power component 300 are linked together to drive the core slide 130 and the core slider 110 to move outward in sequence, realizing a step-by-step core pulling action of secondary extraction of cores at different angles. This solves the technical defect that when there are inner cores with different angles in the outer core, they cannot be extracted due to positional interference. It simplifies the core pulling and demolding structure, optimizes the core pulling process of multi-angle cores, improves the core pulling and demolding efficiency of complex products, and achieves the beneficial effect of simultaneously extracting and demolding cores with different angles inside the product.

[0019] The following will further describe a secondary core-pulling and demolding structure for double-layer cores at different angles in this exemplary embodiment.

[0020] In one embodiment of this application, the specific features of the secondary core-pulling and demolding structure for double-layer cores at different angles can be further described in conjunction with the following description.

[0021] like Figure 1 As shown, in one embodiment of this application, a sliding assembly, an inclined guide post, and a power assembly are included; wherein, the sliding assembly 100 includes a core slider 110, a slide block seat 120, a core slide 130, a limiting plate 140, and a base plate 150, the limiting plate 140 being located between the slide block seat 120 and the base plate 150, and fixedly connected to the core slider 110; the inclined guide post 200 is fixedly connected to the moving mold template, the core slider 110 is provided with a sliding channel for passing through the inclined guide post 200, and the slide block seat 120 is sleeved on the inclined guide post 200 and connected to the limiting plate 140. 40. The sliding plate seat 120 is fixedly connected to the core sliding plate 130; the base plate 150 is fixedly connected to the mold fixed template; the power assembly 300 is fixedly connected to the core slider 110 through the power rod 310, and drives the core slider 110 to slide along the base plate 150 through the power rod 310; when the mold moving template is moved upward, the mold moving template drives the inclined guide post 200 to move vertically upward, and the inclined guide post 200 drives the sliding plate seat 120 to move along the limiting plate 140, so that the core sliding plate 130 is pulled out from the product.

[0022] It should be noted that the core slider 110, the slide block seat 120 and the limiting plate 140 are arranged in sequence from top to bottom on the base plate 150. The slide block seat 120 and the limiting plate 140 are located inside the core slider 110, and the core slide 130 passes through the core slider 110.

[0023] In one specific implementation, through the secondary linkage between the inclined guide post 200 and the power component 300, the inclined guide post 200 rises vertically, causing the slide block 120 to move and thus causing the core slide block 130 to be pulled out of the product, realizing the core pulling action of the inner core at different angles. Then, the power component 300 drives the core slider 110 to move through the power rod 310, thereby causing the sliding component 100 to move forward as a whole, realizing the second step of the core pulling action of the outer core, completely separating the outer core from the inner cores at multiple different angles.

[0024] like Figure 1 As shown, in one embodiment of this application, the inclined guide post 200 is obliquely inserted through the slider seat 120; when the moving template drives the inclined guide post 200 to move upward, the vertical movement of the inclined guide post 200 is converted into the horizontal displacement of the slider seat 120.

[0025] In one specific implementation, when the inclined guide post 200 is vertically upward, the vertical movement of the inclined guide post 200 is directly converted into the driving force for the horizontal movement of the slider seat 120, causing the slider seat 120 to move in the horizontal direction, and the slider seat 120 causes the core slider 130 to be extracted from the product.

[0026] like Figure 1 and 3 As shown, in one embodiment of this application, the limiting plate 140 is provided with a U-shaped opening, the opening direction of the U-shaped opening is the same as the displacement direction of the slider seat 120, and the inclined guide post 200 passes through the limiting plate 140 through the U-shaped opening.

[0027] It should be noted that the U-shaped opening of the limiting plate 140 provides displacement space for the lateral path of the inclined guide post 200 during the upward process, and the inclined guide post 200 will not interfere with the position of the limiting plate 140 during the upward process.

[0028] like Figure 3 As shown, in one embodiment of this application, the limiting plate 140 is fixedly provided with a slider seat limiter 141, the slider seat limiter 141 is provided with a spring, and the bottom of the slider seat 120 is provided with at least two slider seat limiting grooves that cooperate with the slider seat limiter 141.

[0029] It should be noted that the two sliding plate limiting grooves at the bottom of the sliding plate seat 120 correspond to the mold closing limiting position and the core pulling limiting position reached by the sliding plate seat 120 driving the core sliding plate 130. The sliding plate seat limiter 141 is provided with a spring, which can press down the sliding plate seat limiter 141 during the displacement of the sliding plate seat 120, and automatically pop out when reaching the limiting position to cooperate with the sliding plate limiting groove to achieve the limiting effect.

[0030] like Figure 1 and 4 As shown, in one embodiment of this application, the bottom of the limiting plate 140 is provided with at least four slider limiting grooves aligned in two rows, and the bottom plate 150 is provided with two slider limiters 151 fixedly arranged in parallel to cooperate with the slider limiting grooves.

[0031] It should be noted that the slider limiter 151 and the slider limiting groove at the bottom of the limiting plate 140 cooperate with each other to limit the core slider 110. The front and rear positions of the slider limiting groove correspond to the mold closing limiting position and the core pulling limiting position of the core slider 110.

[0032] In one specific implementation, the inclined guide post 200 drives the slide block seat 120 to move from the mold closing position to the core pulling position, and the slide block seat limiter 141 engages with the slide block limiting groove to limit the position. Then, the power assembly 300 drives the core slider 110 to move forward from the mold closing position to the core pulling position through the power rod 310. At this time, the limiting plate 140 will drive the slide block seat 120 to move forward synchronously, completing the secondary core pulling displacement action.

[0033] like Figure 2 As shown, in one embodiment of this application, a slider insert 400 is further included for limiting the core slider 110. The slider insert 400 is fixedly connected to the moving mold template. The width of the slider insert 400 is the same as that of the slide block seat 120, and the height of the slider insert 400 is not lower than the height of the core slider 110. The slider insert 400 is in contact with the slide block seat 120, and the contact surface is at the same inclination angle as the inclined guide post 200.

[0034] It should be noted that the size of the sliding insert 400 needs to be set according to the size of the core slider 100 to ensure that the sliding insert 400 is always in contact with the core slider 110 during the process of the moving template of the mold rising, before the slide block seat 120 reaches the core pulling limit, so as to restrict the sliding of the core slider 110.

[0035] In one specific implementation, the moving mold template drives the slider insert 400 and the inclined guide post 200 to rise synchronously. The inclined guide post 200 drives the slide block seat 120 to move forward. At this time, the slider insert 400 will press against the core slider 110, preventing it from sliding under the sliding motion of the slide block seat 120. When the slide block seat 120 reaches the core pulling limit, the slider insert 400 just leaves the core slider 110, releasing the displacement restriction of the core slider 110.

[0036] like Figure 1As shown, in one embodiment of this application, the core slide 130 is L-shaped, and the slide seat 120 is provided with a mounting groove corresponding to the shape of the core slide 130. The core slide 130 and the slide seat 120 are fitted and fixed through the mounting groove.

[0037] It should be noted that the core slide 130 and the slide seat 120 are provided with an L-shaped structure that cooperates with each other. The effect of synchronous movement of the core slide 130 by the slide seat 120 is achieved by the two fitting together. The L-shaped fitting shape itself also has the effect of limiting and preventing dislodgement.

[0038] like Figure 4 As shown, in one embodiment of this application, the base plate 150 is provided with an opening for passing through the inclined guide post 200, and the opening extends along the lateral displacement direction of the inclined guide post 200 during the upward process.

[0039] It should be noted that the elongated opening provided in the base plate 150 provides displacement space for the lateral displacement path of the inclined guide post 200 during the upward process. The inclined guide post 200 passes through the base plate through the opening, and the inclined guide post 200 will not interfere with the position of the base plate 150 during the upward process.

[0040] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0041] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0042] The above provides a detailed description of a secondary core-pulling and demolding structure for double-layer cores at different angles provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A secondary core-pulling demolding structure for double-layer cores at different angles, applied to injection molds, characterized in that, It includes a sliding assembly, an inclined guide post, and a power assembly; wherein, the sliding assembly includes a core slider, a slide block seat, a core slide, a limiting plate, and a base plate, and the limiting plate is located between the slide block seat and the base plate and is fixedly connected to the core slider; The inclined guide post is fixedly connected to the moving mold plate, the core slider is provided with a sliding channel for passing through the inclined guide post, the slide block is sleeved on the inclined guide post and movably connected to the limiting plate, and the slide block is fixedly connected to the core slide block; The base plate is fixedly connected to the mold template, and the power assembly is fixedly connected to the core slider through a power rod, and the core slider is driven to slide along the base plate through the power rod; When the moving mold platen moves upward, the moving mold platen drives the inclined guide post to move vertically upward, and the inclined guide post drives the slide block seat to move along the limiting plate, so that the core slide block is pulled out of the product.

2. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 1, characterized in that, The inclined guide post is obliquely inserted through the slider seat; When the moving mold plate drives the inclined guide post to move upward, the vertical movement of the inclined guide post is converted into a horizontal displacement of the sliding plate seat.

3. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 1, characterized in that, The limiting plate is provided with a U-shaped opening, the opening direction of which is the same as the displacement direction of the slider seat, and the inclined guide post passes through the limiting plate through the U-shaped opening.

4. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 1, characterized in that, The limiting plate is fixedly provided with a slider seat limiter, the slider seat limiter is provided with a spring, and the bottom of the slider seat is provided with at least two slider seat limiting grooves that cooperate with the slider seat limiter.

5. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 1, characterized in that, The bottom of the limiting plate is provided with at least four slider limiting grooves aligned in two rows, and the base plate is provided with two slider limiters that cooperate with the slider limiting grooves.

6. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 1, characterized in that, It also includes a slider insert for limiting the movement of the core slider, the slider insert being fixedly connected to the moving template of the mold.

7. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 6, characterized in that, The width of the slider insert is the same as that of the slider seat, the height of the slider insert is not less than the height of the core slider, the slider insert is fitted to the slider seat and the fitting surface is at the same inclination angle as the inclined guide post.

8. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 1, characterized in that, The core slide is L-shaped, and the slide seat is provided with a mounting groove corresponding to the shape of the core slide. The core slide and the slide seat are fitted and fixed through the mounting groove.

9. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 1, characterized in that, The power rod and the core slider are respectively provided with mutually cooperating anti-detachment structures.

10. The secondary core-pulling and demolding structure for double-layer cores at different angles according to claim 1, characterized in that, The base plate is provided with an opening for the inclined guide post to pass through, and the opening extends along the lateral displacement direction of the inclined guide post during the upward process.

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