Handrail side inclined sliding block demolding mechanism of plastic turnover box mold

Abstract

The utility model provides an armrest side inclined sliding block demolding mechanism of a plastic turnover box mold, and belongs to the technical field of molds. The mold comprises an upper mold plate, a linkage type outer insert structure is arranged at the bottom of the upper mold plate, the linkage type outer insert structure comprises a front side core-pulling insert, a rear side core-pulling insert and a left side core-pulling insert, the front side core-pulling insert and the rear side core-pulling insert are oppositely arranged, the left side core-pulling insert and the right side core-pulling insert are oppositely arranged, and a rectangle is defined by the front side core-pulling insert, the rear side core-pulling insert and the left side core-pulling insert and the right side core-pulling insert. A linkage type outer insert structure defined by the front side core-pulling insert, the rear side core-pulling insert, the left side core-pulling insert and the right side core-pulling insert is a part of a mold for forming the plastic turnover box, and the composite inner core-pulling assembly can mold an armrest groove and an armrest block protruding out of the armrest groove on the armrest side of the turnover box during injection molding. And the composite inner core-pulling assembly can generate vertical displacement during translation demolding, so that demolding of the handrail groove part can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a demoulding mechanism of a side inclined slide block for a handrail of a plastic turnover box mold. Background Art

[0002] Moulds are important process equipment for modern industrial production, meeting the needs of industrial mass production. Injection moulds are tools for producing plastic products, and are also tools that give plastic products complete structures and precise dimensions. Injection moulding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and molten plastic into the mould cavity under high pressure by an injection moulding machine, and obtaining a moulded product after cooling and solidification. Plastic turnover boxes are generally made by injection moulding, but the side core pulling mechanism of the existing turnover box mould can only achieve slider core pulling in one direction. Therefore, for a core pulling slider that needs to move vertically while moving horizontally, two independent core pulling drives need to be provided, which is costly.

[0003] For example, a Chinese patent discloses a demoulding mechanism for a plastic turnover box mold [application number: 201020593745.0], which includes an upper mold plate and a lower mold plate, wherein the upper mold plate is connected to a flow channel plate, the flow channel plate is connected to a cavity plate, a cavity insert is installed in the cavity plate, a core plate is installed on the lower mold plate, a core insert is installed in the core plate, a front reinforcing rib slider, a rear reinforcing rib slider, a left reinforcing rib slider and a right reinforcing rib slider are respectively arranged on the four sides of the core plate, and the core insert is connected to the front, rear, left and right reinforcing rib sliders and the mold plate. There is a formed turnover box between the cavity inserts, and reinforcing ribs are formed on the box walls around the turnover box. Handle holes are formed on the box walls on the left and right sides of the turnover box. It is characterized in that linkage blocks are respectively installed on the left and right ends of the front and rear reinforcing rib sliders, and each linkage block is movably connected to the left and right reinforcing rib sliders, and oil cylinders are respectively installed on the front and rear reinforcing rib sliders. The piston rods of the oil cylinders are connected to the cavity plate, and inclined guide columns are respectively installed on the four sides of the cavity plate, and the inclined guide columns pass through the cavity plate and the front, rear, left and right reinforcing rib sliders. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a demoulding mechanism for a side inclined slider of a plastic turnover box mold handrail.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plastic turnover box mold armrest side inclined slider demolding mechanism, including an upper template, the bottom of the upper template is provided with a linkage type external insert block structure, the linkage type external insert block structure includes two relatively arranged front and rear side core pulling insert blocks and two relatively arranged left and right side core pulling insert blocks, the two front and rear side core pulling insert blocks and the two left and right side core pulling insert blocks together form a rectangle, the front and rear side core pulling insert blocks and the left and right side core pulling insert blocks are connected to the upper template through an external core pulling drive assembly, and the left and right side core pulling insert blocks are provided with a composite internal core pulling assembly.

[0007] In the above-mentioned oblique slider demolding mechanism of the handrail side of the plastic turnover box mold, the composite inner core pulling assembly includes a composite inner insert structure arranged in the left and right side core pulling inserts and slidingly matched with the left and right side core pulling inserts, and a driver mounting seat is fixed to the outer side of the left and right side core pulling inserts, and a translation driver connected to the composite inner insert structure is fixed to the driver mounting seat.

[0008] In the above-mentioned oblique slider demolding mechanism of the handrail side of the plastic turnover box mold, the composite inner insert structure includes a translation insert connected to the output shaft of the translation drive, the bottom of the translation insert is connected to the vertical insert through an oblique guide structure, the bottom of the vertical insert is recessed inwardly and provided with a rectangular groove body, the inner ends of the translation insert and the vertical insert are connected to the side molding surfaces on the inner end surfaces of the left and right core-pulling inserts, and the inner end surfaces of the translation insert and the vertical insert are flush.

[0009] In the above-mentioned oblique slider demolding mechanism on the handrail side of the plastic turnover box mold, the oblique guide structure includes a push-pull slide rail obliquely arranged at the bottom of the translation insert and a push-pull track groove obliquely arranged at the top of the vertical insert, and the cross-sections of the push-pull slide rail and the push-pull track groove are T-shaped.

[0010] In the above-mentioned plastic turnover box mold handrail side inclined slider demoulding mechanism, a translation insert limiting structure is also provided on the driver mounting seat.

[0011] In the above-mentioned plastic turnover box mold handrail side inclined slider demoulding mechanism, the translation insert limiting structure includes a limiting slider horizontally fixed on the driver mounting seat, and the limiting slider is inserted into the translation insert and slidably cooperates with the translation insert.

[0012] In the above-mentioned plastic turnover box mold handrail side inclined slider demoulding mechanism, the cross-section of the limit slider is T-shaped.

[0013] In the above-mentioned oblique slider demolding mechanism of the handrail side of the plastic turnover box mold, the external core pulling drive assembly includes a drive rod obliquely fixed on the upper template, and the drive rod is obliquely inserted into the drive rod slide groove in the front and rear side core pulling inserts and the left and right side core pulling inserts.

[0014] In the above-mentioned oblique slider demolding mechanism of the handrail of the plastic turnover box mold, a linkage rod is horizontally arranged between the front and rear side core pulling inserts and the left and right side core pulling inserts, and the linkage rod is slidably matched with the front and rear side core pulling inserts and the left and right side core pulling inserts. Linkage rod mounting slides are arranged on the front and rear side core pulling inserts and the left and right side core pulling inserts. An inclined linear drive is fixedly connected to the front and rear side core pulling inserts, and the linear drive is connected to the upper template through a sliding push-pull connection structure.

[0015] In the above-mentioned oblique slider demolding mechanism of the handrail side of the plastic turnover box mold, the sliding push-pull connection structure includes a push-pull groove obliquely arranged on the upper template, and the output shaft end of the linear drive is fixedly connected with a T-shaped joint inserted into the push-pull groove, and the cross-section of the push-pull groove is T-shaped.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. The linkage type outer insert structure formed by two front and rear side core-pulling inserts and two left and right side core-pulling inserts is a part of the plastic turnover box mold. The composite inner core-pulling assembly can form an armrest groove and an armrest block protruding from the armrest groove on the armrest side of the turnover box during injection molding. After the turnover box is injection molded, the composite inner core-pulling assembly can generate vertical displacement while demolding in translation, thereby realizing demolding of the armrest groove. The outer core-pulling drive assembly can make the two front and rear side core-pulling inserts and the two left and right side core-pulling inserts translate and demold in the direction away from the molding cavity.

[0018] 2. The translation insert and the vertical insert are inserted into the forming cavity to form a handrail groove on the handrail side of the turnover box product. The rectangular groove body can form a handrail block in the handrail groove. The translation driver can drive the translation insert to move horizontally. When the translation insert moves horizontally, the oblique guide structure can drive the vertical insert to move in the vertical direction, so that the vertical insert and the handrail block can be separated. Only one translation driver is needed to realize the translation of the translation insert and the vertical movement of the vertical insert. There is no need to set up a second driver, which can reduce the cost of the mold.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a structural schematic diagram of a linkage type external insert block structure;

[0023] Figure 4 It is a structural schematic diagram of a composite inner core pulling assembly;

[0024] Figure 5 It is a structural schematic diagram of a composite inner insert structure.

[0025] In the figure, the upper template 1, the linkage type outer insert structure 2, the front and rear side core pulling inserts 3, the left and right side core pulling inserts 4, the composite inner core pulling assembly 5, the composite inner insert structure 6, the driver mounting seat 7, the translation driver 8, the translation insert 9, the vertical insert 10, the rectangular trough 11, the push-pull rail 12, the push-pull rail groove 13, the limit slider 14, the drive rod slide 15, the linkage rod mounting slide 16, the linear driver 17, the push-pull slide 18, and the T-joint 19. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 5 As shown, a plastic turnover box mold handrail side inclined slider demolding mechanism includes an upper template 1, and a linkage type outer insert block structure 2 is arranged at the bottom of the upper template 1. The linkage type outer insert block structure 2 includes two oppositely arranged front and rear side core-pulling insert blocks 3 and two oppositely arranged left and right side core-pulling insert blocks 4. The two front and rear side core-pulling insert blocks 3 and the two left and right side core-pulling insert blocks 4 are surrounded by a rectangle. The front and rear side core-pulling insert blocks 3 and the left and right side core-pulling insert blocks 4 are connected to the upper template 1 through an outer core-pulling drive assembly, and the left and right side core-pulling insert blocks 4 are provided with a composite inner core-pulling assembly 5.

[0027] In the utility model, a linkage type outer insert block structure formed by two front and rear side core pulling insert blocks 3 and two left and right side core pulling insert blocks 4 constitutes a part of the plastic turnover box mold, and the composite inner core pulling component 5 can form an armrest groove and an armrest block protruding in the armrest groove on the armrest side of the turnover box during injection molding. After the turnover box is injection molded, the composite inner core pulling component 5 can generate vertical displacement while demolding in translation, thereby realizing demolding of the armrest groove part, and the outer core pulling drive component can make the two front and rear side core pulling insert blocks 3 and the two left and right side core pulling insert blocks 4 demold in translation away from the molding cavity.

[0028] Specifically, the composite inner core pulling assembly 5 includes a composite inner insert structure 6 which is arranged in the left and right core pulling inserts 4 and slidably cooperates with the left and right core pulling inserts 4. A driver mounting seat 7 is fixed to the outer side of the left and right core pulling inserts 4. A translation driver 8 connected to the composite inner insert structure 6 is fixedly connected to the driver mounting seat 7. The composite inner insert structure 6 includes a translation insert 9 connected to the output shaft of the translation driver 8. The bottom of the translation insert 9 is connected to a vertical insert 10 through an oblique guide structure. The bottom of the vertical insert 10 is recessed inwardly and provided with a rectangular groove body 11. The inner ends of the translation insert 9 and the vertical insert 10 are connected to the side molding surfaces on the inner end surfaces of the left and right core pulling inserts 4, and the inner end surfaces of the translation insert 9 and the vertical insert 10 are flush. The translation insert 9 and the vertical insert are inserted into the molding cavity to form an armrest groove on the armrest side of the turnover box product. The rectangular groove body 11 can form an armrest block in the armrest groove. The translation driver 8 can drive the translation insert to move horizontally. When the translation insert moves horizontally, the oblique guide structure can drive the vertical insert to be displaced in the vertical direction, thereby enabling the vertical insert 10 to separate from the armrest block. Only one translation driver is required to achieve the translation of the translation insert and the vertical movement of the vertical insert. There is no need to set up a second driver, which can reduce the cost of the mold.

[0029] Those skilled in the art should understand that the translation driver may be an oil cylinder, an air cylinder or a linear motor, etc.

[0030] Specifically, the oblique guide structure includes a push-pull rail 12 obliquely arranged at the bottom of the translation insert 9 and a push-pull track groove 13 obliquely arranged at the top of the vertical insert 10, and the cross-sections of the push-pull rail 12 and the push-pull track groove 13 are T-shaped. When the translation insert 9 moves horizontally, the push-pull rail 12 and the push-pull track groove 13 can drive the vertical insert to move in the vertical direction.

[0031] Preferably, the driver mounting seat 7 is further provided with a translation insert limiting structure, which includes a limiting slider 14 horizontally fixed on the driver mounting seat 7, the limiting slider 14 is inserted into the translation insert 9 and slidably cooperates with the translation insert 9, and the cross section of the limiting slider 14 is T-shaped. The limiting slider 14 can limit the translation insert when the translation insert moves.

[0032] Specifically, the outer core pulling drive assembly includes a driving rod obliquely fixed on the upper mold plate 1, and the driving rod is obliquely inserted into the driving rod slide groove 15 in the front and rear core pulling inserts 3 and the left and right core pulling inserts 4. When the upper mold plate moves upward, the front and rear core pulling inserts 3 and the left and right core pulling inserts 4 can be driven by the driving rod to move horizontally away from the molding cavity.

[0033] Specifically, a linkage rod is horizontally arranged between the front and rear side core-pulling inserts 3 and the left and right side core-pulling inserts 4, and the linkage rod is slidably matched with the front and rear side core-pulling inserts 3 and the left and right side core-pulling inserts 4. The front and rear side core-pulling inserts 3 and the left and right side core-pulling inserts 4 are provided with a linkage rod mounting slideway 16, and the front and rear side core-pulling inserts 3 are fixedly connected with an inclined linear drive 17, and the linear drive 17 is connected to the upper template 1 through a sliding push-pull connection structure. The linear drive 17 can drive the front and rear side core-pulling inserts 3 to move away from the upper template, and the linkage rod arranged in the linkage rod mounting slideway 16 can make the two front and rear side core-pulling inserts 3 and the two left and right side core-pulling inserts 4 move synchronously.

[0034] Those skilled in the art should understand that the linear drive may be an oil cylinder, an air cylinder or a linear motor, etc.

[0035] Specifically, the sliding push-pull connection structure includes a push-pull slot 18 obliquely arranged on the upper template 1, and the output shaft end of the linear drive 17 is fixedly connected to a T-shaped connector 19 inserted into the push-pull slot 18, and the cross-section of the push-pull slot 18 is T-shaped. When the output shaft of the linear drive is extended, the end of the T-joint and the top of the push-pull slot 19 are against each other, and the linear drive body drives the front and rear side core-pulling inserts to move away from the upper template under the action of the reaction force. The linkage rod arranged in the linkage rod mounting slide 16 can make the two front and rear side core-pulling inserts 3 and the two left and right side core-pulling inserts 4 move synchronously. When the front and rear side core-pulling inserts 3 and the left and right side core-pulling inserts 4 move, they can be translated in the direction away from the upper template while moving away from the molding cavity under the action of the driving rod. Due to the sliding cooperation of the T-joint and the push-pull slot 19, the linear drive can also move together with the front and rear side core-pulling inserts. When the output shaft of the linear drive contracts, the cooperation of the T-joint and the push-pull slot 19 can pull the linear drive body to move toward the upper template, thereby driving the front and rear side core-pulling inserts and the left and right side core-pulling inserts to reset.

[0036] The working principle of the utility model is as follows: the linkage type outer insert block structure formed by two front and rear side core-pulling insert blocks 3 and two left and right side core-pulling insert blocks 4 is a part of the plastic turnover box mold, the composite inner core-pulling assembly 5 can form an armrest groove and an armrest block protruding in the armrest groove on the armrest side of the turnover box during injection molding, after the turnover box is injection molded, the composite inner core-pulling assembly 5 can generate vertical displacement while demolding in translation, so as to realize demolding of the armrest groove part, and the outer core-pulling driving assembly can make the two front and rear side core-pulling insert blocks 3 and the two left and right side core-pulling insert blocks 4 demold in translation away from the molding cavity;

[0037] The translation insert 9 and the vertical insert are inserted into the forming cavity to form an armrest groove on the armrest side of the turnover box product. The rectangular groove body 11 can form an armrest block in the armrest groove. The translation driver 8 can drive the translation insert to move horizontally. When the translation insert moves horizontally, the vertical insert can be driven to move in the vertical direction through the oblique guide structure, so that the vertical insert 10 and the armrest block can be separated. Only one translation driver is needed to realize the translation of the translation insert and the vertical movement of the vertical insert. There is no need to set a second driver, which can reduce the cost of the mold. When the translation insert 9 moves horizontally, it can drive the vertical insert to move in the vertical direction through the push-pull slide rail 12 and the push-pull track groove 13. The limit slider 14 can limit the translation insert when the translation insert moves;

[0038] When the upper template moves upward, the driving rod can drive the front and rear side core pulling inserts 3 and the left and right side core pulling inserts 4 to move horizontally in the direction away from the molding cavity. When the output shaft of the linear drive is extended, the end of the T-joint and the top of the push-pull slide 19 are against each other, and the linear drive body drives the front and rear side core pulling inserts to move in the direction away from the upper template under the action of the reaction force. The linkage rod arranged in the linkage rod mounting slide 16 can make the two front and rear side core pulling inserts 3 and the two left and right side core pulling inserts 4 move synchronously. When the front and rear side core pulling inserts 3 and the left and right side core pulling inserts 4 move, they can move away from the upper template and move in the direction away from the molding cavity under the action of the driving rod. Due to the sliding cooperation of the T-joint and the push-pull slide 19, the linear drive can also move together with the front and rear side core pulling inserts. When the output shaft of the linear drive contracts, the T-joint and the push-pull slide 19 can pull the linear drive body to move in the direction close to the upper template, thereby driving the front and rear side core pulling inserts and the left and right side core pulling inserts to reset.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0040] Although this article uses the upper template 1, the linkage outer insert structure 2, the front and rear side core pulling inserts 3, the left and right side core pulling inserts 4, the composite inner core pulling assembly 5, the composite inner insert structure 6, the driver mounting seat 7, the translation driver 8, the translation insert 9, the vertical insert 10, the rectangular trough body 11, the push-pull slide rail 12, the push-pull track groove 13, the limit slider 14, the drive rod slide groove 15, the linkage rod mounting slide 16, the linear driver 17, the push-pull slide groove 18, the T-joint 19, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A plastic turnover box mold handrail side inclined slider demoulding mechanism, comprising an upper mold plate (1), characterized in that: A linkage type external insert block structure (2) is arranged at the bottom of the upper template (1), and the linkage type external insert block structure (2) includes two oppositely arranged front and rear side core-pulling insert blocks (3) and two oppositely arranged left and right side core-pulling insert blocks (4), the two front and rear side core-pulling insert blocks (3) and the two left and right side core-pulling insert blocks (4) together form a rectangle, the front and rear side core-pulling insert blocks (3) and the left and right side core-pulling insert blocks (4) are connected to the upper template (1) through an external core-pulling drive assembly, and a composite internal core-pulling assembly (5) is arranged on the left and right side core-pulling insert blocks (4).

2. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 1 is characterized in that: The composite inner core pulling assembly (5) comprises a composite inner insert structure (6) which is arranged in the left and right core pulling inserts (4) and slidably cooperates with the left and right core pulling inserts (4). A driver mounting seat (7) is fixed to the outer side of the left and right core pulling inserts (4). A translation driver (8) connected to the composite inner insert structure (6) is fixed to the driver mounting seat (7).

3. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 2 is characterized in that: The composite inner insert structure (6) comprises a translation insert (9) connected to the output shaft of the translation driver (8); the bottom of the translation insert (9) is connected to a vertical insert (10) via an oblique guide structure; the bottom of the vertical insert (10) is inwardly recessed and provided with a rectangular groove (11); the inner ends of the translation insert (9) and the vertical insert (10) are connected to the side molding surfaces on the inner end surfaces of the left and right core-pulling inserts (4); and the inner end surfaces of the translation insert (9) and the vertical insert (10) are flush.

4. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 3 is characterized in that: The oblique guide structure comprises a push-pull rail (12) obliquely arranged at the bottom of the translation insert (9) and a push-pull track groove (13) obliquely arranged at the top of the vertical insert (10), and the push-pull rail (12) and the push-pull track groove (13) have T-shaped cross-sections.

5. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 4 is characterized in that: The driver mounting seat (7) is also provided with a translation insert limiting structure.

6. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 5 is characterized in that: The translation insert limiting structure comprises a limiting slider (14) horizontally fixed on the driver mounting seat (7); the limiting slider (14) is inserted into the translation insert (9) and slidably cooperates with the translation insert (9).

7. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 6 is characterized in that: The cross section of the limiting sliding block (14) is T-shaped.

8. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 1, characterized in that: The outer core pulling drive assembly comprises a drive rod obliquely fixed on the upper template (1), and the drive rod is obliquely inserted into the drive rod slide groove (15) in the front and rear core pulling inserts (3) and the left and right core pulling inserts (4).

9. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 8, characterized in that: A linkage rod is horizontally arranged between the front and rear core-pulling blocks (3) and the left and right core-pulling blocks (4), and the linkage rod is slidably matched with the front and rear core-pulling blocks (3) and the left and right core-pulling blocks (4). Linkage rod mounting slideways (16) are arranged on the front and rear core-pulling blocks (3) and the left and right core-pulling blocks (4). An inclined linear drive (17) is fixedly connected to the front and rear core-pulling blocks (3), and the linear drive (17) is connected to the upper template (1) via a sliding push-pull connection structure.

10. The demoulding mechanism of the oblique slider on the handrail side of the plastic turnover box mold according to claim 9, characterized in that: The sliding push-pull connection structure comprises a push-pull slot (18) obliquely arranged on the upper template (1), the output shaft end of the linear drive (17) is fixedly connected with a T-shaped joint (19) inserted into the push-pull slot (18), and the cross-section of the push-pull slot (18) is T-shaped.

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