Anti-eccentricity long core-pulling mechanism of double-sided Chinese character chuan-shaped tray injection mold

Abstract

The utility model provides an anti-eccentricity long core-pulling mechanism of a double-sided Chinese character'chuan '-shaped tray injection mold, and belongs to the technical field of molds. The mold comprises an upper mold plate and a lower mold plate, a forming cavity is formed between the upper mold plate and the lower mold plate, a front sliding plate, a rear sliding plate, a left sliding plate and a right sliding plate which are distributed in a rectangular shape are arranged on the lower mold plate in a sliding fit mode, and the inner end of each of the front sliding plate, the rear sliding plate, the left sliding plate and the right sliding plate is fixedly connected with a long insert and a short insert. After a product is subjected to injection molding, the front sliding plate, the rear sliding plate, the left sliding plate and the right sliding plate can be driven to move in the direction away from the molding cavity through the three sets of external anti-eccentricity long core-pulling mechanisms and the set of built-in anti-eccentricity long core-pulling mechanisms, and therefore automatic core pulling of the long insert and the short insert can be achieved. And the front sliding plate, the rear sliding plate, the left sliding plate and the right sliding plate can be ensured to deviate during movement, so that the product cannot be damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and relates to an anti-eccentric long core-pulling mechanism for a double-sided Sichuan-character tray injection mold. Background Art

[0002] Double-sided Sichuan-character trays are generally injection-molded through molds. When injecting double-sided Sichuan-character trays, a long core-pulling mechanism needs to be set up. However, in the prior art, the long core-pulling mechanism is prone to product damage due to eccentricity during core-pulling drive.

[0003] For example, a Chinese patent discloses a high-strength logistics tray mold [Application No.: 202021420025.4], which includes an empty mold body. The mold body includes a moving mold and a fixed mold. The top of the moving mold is fixedly welded with an upper fixing plate, the bottom of the fixed mold is fixedly welded with a lower fixing plate, an activity groove is opened at the bottom of the front of the fixed mold, springs are fixedly welded at both ends of the activity groove, a fixed block is installed in the middle of the fixed mold, a sliding block is installed inside the fixed block, a plug rod is fixedly welded on the back of the sliding block, a clamping plate is installed on the top of the fixed mold, and a convex block is installed beside the partition groove. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-eccentric long core-pulling mechanism for a double-sided Sichuan-character tray injection mold in view of the above problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-eccentric long core-pulling mechanism for a double-sided Sichuan-character tray injection mold includes an upper template and a lower template. A molding cavity is arranged between the upper template and the lower template. A front slide plate, a rear slide plate, a left slide plate, and a right slide plate distributed in a rectangular shape are slidably matched on the lower template. A long insert block and a short insert block are fixedly connected to the inner ends of the front slide plate, the rear slide plate, the left slide plate, and the right slide plate. The long insert block and the short insert block on the front slide plate are respectively arranged opposite to the short insert block and the long insert block on the rear slide plate. The long insert block and the short insert block on the left slide plate are respectively arranged opposite to the short insert block and the long insert block on the right slide plate. A section of gap is arranged between the relatively arranged long insert block and short insert block, and the inner ends of the long insert block and the short insert block are both abutted against the side part of the long insert block passing through the gap. Three external anti-eccentric long core-pulling mechanisms respectively connected to the front slide plate, the rear slide plate, and the left slide plate are arranged on the lower template. An internal anti-eccentric long core-pulling mechanism connected to the right slide plate is also arranged on the lower template.

[0007] In the above anti-eccentric long core-pulling mechanism for a double-sided Sichuan-character tray injection mold, the long insert block and the short insert block are horizontally and vertically arranged on the front slide plate, the rear slide plate, the left slide plate, and the right slide plate.

[0008] In the above-mentioned anti-eccentric long core-pulling mechanism for the double-sided Sichuan-character tray injection mold, the external anti-eccentric long core-pulling mechanism includes a first translation driver connected to the front slide plate, rear slide plate or left slide plate through a first slide plate connecting plate. The end of the output shaft of the first translation driver is fixedly connected to the lower template, and a first anti-eccentric limit structure is also included.

[0009] In the above-mentioned anti-eccentric long core-pulling mechanism for the double-sided Sichuan-character tray injection mold, the first anti-eccentric limit structure includes two first limit seats arranged in parallel on both sides of the first translation driver. The first limit seats are fixed on the lower template. A first limit chute is provided on the first limit seats. A first limit block inserted into the first limit chute is fixedly connected to the bottom of the front slide plate, rear slide plate or left slide plate.

[0010] In the above-mentioned anti-eccentric long core-pulling mechanism for the double-sided Sichuan-character tray injection mold, the internal anti-eccentric long core-pulling mechanism includes two second translation drivers fixed to the bottom of the lower template. The outer ends of the second translation drivers are fixedly connected to a second slide plate connecting plate. The upper end of the second slide plate connecting plate is connected to the right slide plate, and a second anti-eccentric limit structure is also included.

[0011] In the above-mentioned anti-eccentric long core-pulling mechanism for the double-sided Sichuan-character tray injection mold, the second anti-eccentric limit structure includes two second limit seats arranged in parallel outside the two second translation drivers. The second limit seats are fixed on the lower template. A second limit chute is provided on the second limit seats. A second limit block inserted into the second limit chute is fixedly connected to the bottom of the right slide plate.

[0012] In the above-mentioned anti-eccentric long core-pulling mechanism for the double-sided Sichuan-character tray injection mold, the cross-sections of the first limit chute, first limit block, second limit chute and second limit block are T-shaped.

[0013] In the above-mentioned anti-eccentric long core-pulling mechanism for the double-sided Sichuan-character tray injection mold, two vertical chutes with T-shaped cross-sections are provided at the outer end of the right slide plate. The cross-section of the vertical chute is T-shaped. A push-pull slider inserted into the vertical chute is fixedly connected to the second slide plate connecting plate.

[0014] In the above-mentioned anti-eccentric long core-pulling mechanism for the double-sided Sichuan-character tray injection mold, four upper insert rods horizontally inserted into the molding cavity are further provided at the inner end of the left slide plate. The upper insert rods are located above the long insert block and the short insert block.

[0015] In the above-mentioned anti-eccentric long core-pulling mechanism for the double-sided Sichuan-character tray injection mold, four lower insert rods horizontally inserted into the molding cavity are further provided at the inner end of the front slide plate. The lower insert rods are located below the long insert block and the short insert block.

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

[0017] 1. After the product is injection molded, three sets of external anti-eccentricity long core-pulling mechanisms and one set of internal anti-eccentricity long core-pulling mechanisms can drive the front slide plate, rear slide plate, left slide plate and right slide plate to move away from the molding cavity, thereby realizing automatic core pulling of long inserts and short inserts, and ensuring that the front slide plate, rear slide plate, left slide plate and right slide plate are offset during movement to ensure that the product will not be damaged.

[0018] 2. The action of the No. 1 translation driver can drive the front slide, the rear slide or the left slide to move away from the molding cavity through the No. 1 slide connecting plate, so as to realize the core pulling of the long insert and the short insert. When the front slide, the rear slide and the left slide move, the No. 1 limit block cooperates with the No. 1 limit slide groove on the No. 1 limit seat to prevent the front slide, the rear slide, the left slide and the right slide from deviating during movement.

[0019] 3. The synchronous action of the two No. 2 translation drivers can drive the right slide to translate away from the molding cavity through the two No. 2 slide connecting plates. The movement of the right slide can drive the long insert and the short insert to move to realize the core pulling of the long insert and the short insert. When the right slide moves, the No. 2 limit block cooperates with the No. 2 limit slide groove on the No. 2 limit seat to prevent the right slide from deviating during movement.

[0020] 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

[0021] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0023] Figure 3 It is a partial structural schematic diagram of the utility model;

[0024] Figure 4 It is a structural diagram of the lower template;

[0025] Figure 5 It is a structural schematic diagram of a built-in anti-eccentricity long core pulling mechanism.

[0026] In the figure, an upper template 1, a lower template 2, a molding cavity 3, a front skateboard 4, a rear skateboard 5, a left skateboard 6, a right skateboard 7, a long insert 8, a short insert 9, an external anti-eccentricity long core-pulling mechanism 10, a built-in anti-eccentricity long core-pulling mechanism 11, a No. 1 translation driver 12, a No. 1 limit seat 13, a No. 1 limit slide 14, a No. 1 limit block 15, a No. 2 translation driver 16, a No. 2 skateboard connecting plate 17, a No. 2 limit seat 18, a No. 2 limit slide 19, a No. 2 limit block 20, a vertical slide 21, a push-pull slider 22, an upper insert rod 23, and a lower insert rod 24. DETAILED DESCRIPTION

[0027] like Figure 1-Figure 5 As shown, a double-sided Sichuan-shaped pallet injection mold anti-eccentric long core pulling mechanism comprises an upper template 1 and a lower template 2, a molding cavity 3 is arranged between the upper template 1 and the lower template 2, and a front slide plate 4, a rear slide plate 5, a left slide plate 6 and a right slide plate 7 which are distributed in a rectangular shape are slidably matched on the lower template 2, and a long insert 8 and a short insert 9 are fixedly connected to the inner ends of the front slide plate 4, the rear slide plate 5, the left slide plate 6 and the right slide plate 7, and the long insert 8 and the short insert 9 on the front slide plate 4 are arranged opposite to the short insert 9 and the long insert 8 on the rear slide plate 5, respectively. The long insert 8 and the short insert 9 on the left slide 6 are respectively arranged opposite to the short insert 9 and the long insert 8 on the right slide 7. A gap is arranged between the long insert 8 and the short insert 9 arranged opposite to each other, and the inner ends of the long insert 8 and the short insert 9 are both against the side of the long insert 8 passing through the gap. The lower template 2 is provided with three groups of external anti-eccentricity long core-pulling mechanisms 10 respectively connected to the front slide 4, the rear slide 5 and the left slide 6. The lower template 2 is also provided with an internal anti-eccentricity long core-pulling mechanism 11 connected to the right slide 7.

[0028] In the utility model, after the product is injection molded, three sets of external anti-eccentricity long core-pulling mechanisms 10 and one set of internal anti-eccentricity long core-pulling mechanisms 11 can drive the front slide 4, the rear slide 5, the left slide 6 and the right slide 7 to move away from the molding cavity, thereby realizing automatic core pulling of the long insert 8 and the short insert 9, and preventing the front slide 4, the rear slide 5, the left slide 6 and the right slide 7 from being offset during movement to ensure that the product will not be damaged.

[0029] Specifically, the long inserts 8 and the short inserts 9 are horizontally and vertically arranged on the front slide plate 4 , the rear slide plate 5 , the left slide plate 6 and the right slide plate 7 .

[0030] Specifically, the external anti-eccentricity long core pulling mechanism 10 includes a No. 1 translation driver 12 connected to the front skateboard 4, the rear skateboard 5 or the left skateboard 6 through a No. 1 skateboard connecting plate, the output shaft end of the No. 1 translation driver 12 is fixedly connected to the lower template 2, and also includes a No. 1 anti-eccentricity limiting structure, the No. 1 anti-eccentricity limiting structure includes two No. 1 limiting seats 13 arranged in parallel on both sides of the No. 1 translation driver 12, the No. 1 limiting seat 13 is fixed on the lower template 2, and the No. 1 limiting seat 13 is provided with a No. 1 limiting groove 14, and the bottom of the front skateboard 4, the rear skateboard 5 or the left skateboard 6 is fixedly connected with a No. 1 limiting block 15 inserted into the No. 1 limiting groove 14. The action of the No. 1 translation driver can drive the front skateboard 4, the rear skateboard 5 or the left skateboard 6 to move away from the molding cavity through the No. 1 skateboard connecting plate, thereby realizing the core pulling of the long insert and the short insert. When the front skateboard 4, the rear skateboard 5 and the left skateboard 6 move, the No. 1 limit block 15 cooperates with the No. 1 limit slide groove 14 on the No. 1 limit seat 13 to prevent the front skateboard 4, the rear skateboard 5, the left skateboard 6 and the right skateboard 7 from deflecting during movement.

[0031] Those skilled in the art should understand that the first translation driver may be an oil cylinder, an air cylinder or a linear motor, etc.

[0032] Specifically, the built-in anti-eccentricity long core pulling mechanism 11 includes two No. 2 translation drivers 16 fixed at the bottom of the lower template 2, the outer end of the No. 2 translation driver 16 is fixedly connected with a No. 2 skateboard connecting plate 17, the upper end of the No. 2 skateboard connecting plate 17 is connected to the right skateboard 7, and also includes a No. 2 anti-eccentricity limiting structure, the No. 2 anti-eccentricity limiting structure includes two No. 2 limiting seats 18 arranged in parallel on the outside of the two No. 2 translation drivers 16, the No. 2 limiting seat 18 is fixed on the lower template 2, the No. 2 limiting seat 18 is provided with a No. 2 limiting groove 19, and the bottom of the right skateboard 7 is fixedly connected with a No. 2 limiting block 20 inserted into the No. 2 limiting groove 19. The two No. 2 translation drivers 16 can synchronously move to drive the right slide 7 to translate away from the molding cavity through the two No. 2 slide connecting plates 17. The movement of the right slide 7 can drive the long insert and the short insert to move to realize the core pulling of the long insert and the short insert. When the right slide 7 moves, the No. 2 limit block 20 cooperates with the No. 2 limit groove 19 on the No. 2 limit seat 18 to prevent the right slide 7 from deviating during movement.

[0033] Those skilled in the art should understand that the second translation driver may be an oil cylinder, an air cylinder or a linear motor, etc.

[0034] Preferably, the cross-sections of the No. 1 limiting groove 14, the No. 1 limiting block 15, the No. 2 limiting groove 19 and the No. 2 limiting block 20 are T-shaped, which can prevent the front slide 4, the rear slide 5, the left slide 6 and the right slide from deviating in the vertical direction.

[0035] Specifically, two vertical slide grooves 21 with T-shaped cross sections are arranged at the outer end of the right slide plate 7, and the vertical slide grooves 21 have T-shaped cross sections, and the push-pull sliders 22 are fixedly connected to the second slide plate connecting plate 17 and inserted into the vertical slide grooves 21. The second slide plate connecting plate can be slidably matched with the vertical slide grooves on the right slide plate 7 through the push-pull sliders 22, so that the second slide plate connecting plate and the right slide plate 7 can be easily disassembled.

[0036] Specifically, the inner end of the left slide 6 is also provided with four upper insert rods 23 horizontally inserted into the molding cavity 3, and the upper insert rods 23 are located on the upper side of the long insert block 8 and the short insert block 9. When the left slide moves away from the molding cavity, it can also drive the upper insert rods to move to realize the core pulling of the upper insert rods.

[0037] Specifically, the inner end of the front slide plate 4 is also provided with four lower insert rods 24 horizontally inserted into the molding cavity 3, and the lower insert rods 24 are located at the lower side of the long insert block 8 and the short insert block 9. When the front slide plate moves away from the molding cavity, it can also drive the lower insert rods to move to realize the core pulling of the lower insert rods.

[0038] The working principle of the utility model is as follows: after the product is injection molded, the front slide plate 4, the rear slide plate 5, the left slide plate 6 and the right slide plate 7 can be driven to move away from the molding cavity through three sets of external anti-eccentricity long core pulling mechanisms 10 and one set of internal anti-eccentricity long core pulling mechanisms 11, so that the long insert 8 and the short insert 9 can be automatically pulled out, and the front slide plate 4, the rear slide plate 5, the left slide plate 6 and the right slide plate 7 can be prevented from being offset during movement to ensure that the product will not be damaged;

[0039] The action of the No. 1 translation driver can drive the front slide 4, the rear slide 5 or the left slide 6 to move away from the molding cavity through the No. 1 slide connecting plate, so as to realize the core pulling of the long insert and the short insert. When the front slide 4, the rear slide 5 and the left slide 6 move, the No. 1 limit block 15 cooperates with the No. 1 limit slide groove 14 on the No. 1 limit seat 13 to prevent the front slide 4, the rear slide 5, the left slide 6 and the right slide 7 from deflecting when moving. The two No. 2 translation drivers 16 can synchronously drive the right slide 7 to translate away from the molding cavity through the two No. 2 slide connecting plates 17. The movement of the right slide 7 can drive the long insert and the short insert to move to realize the core pulling of the long insert and the short insert. When the right slide 7 moves, the No. 2 limit block 20 cooperates with the No. 2 limit slide groove 19 on the No. 2 limit seat 18 to prevent the right slide 7 from deflecting when moving.

[0040] The No. 2 slide connecting plate can slide with the vertical slide groove on the right slide 7 through the push-pull slider 22 to facilitate the disassembly of the No. 2 slide connecting plate and the right slide 7. When the left slide moves away from the molding cavity, it can also drive the upper insert rod to move to achieve the core pulling of the upper insert rod. When the front slide moves away from the molding cavity, it can also drive the lower insert rod to move to achieve the core pulling of the lower insert rod.

[0041] 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.

[0042] Although this article uses the upper template 1, lower template 2, molding cavity 3, front skateboard 4, rear skateboard 5, left skateboard 6, right skateboard 7, long insert 8, short insert 9, external anti-eccentricity long core pulling mechanism 10, internal anti-eccentricity long core pulling mechanism 11, No. 1 translation driver 12, No. 1 limit seat 13, No. 1 limit slide 14, No. 1 limit block 15, No. 2 translation driver 16, No. 2 skateboard connecting plate 17, No. 2 limit seat 18, No. 2 limit slide 19, No. 2 limit block 20, vertical slide 21, push-pull slider 22, upper insert rod 23, lower insert rod 24, 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 double-sided chuan-shaped pallet injection mold anti-eccentric long core pulling mechanism, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: A molding cavity (3) is provided between the upper mold plate (1) and the lower mold plate (2); a front slide plate (4), a rear slide plate (5), a left slide plate (6) and a right slide plate (7) are slidably matched on the lower mold plate (2) and are distributed in a rectangular shape; the inner ends of the front slide plate (4), the rear slide plate (5), the left slide plate (6) and the right slide plate (7) are all fixedly connected with a long insert (8) and a short insert (9); the long insert (8) and the short insert (9) on the front slide plate (4) are respectively arranged opposite to the short insert (9) and the long insert (8) on the rear slide plate (5); the long insert (8) and the short insert (9) on the left slide plate (6) are respectively arranged opposite to the long insert (8) and the short insert (9) on the left slide plate (6) The inserts (9) are respectively arranged opposite to the short inserts (9) and the long inserts (8) on the right slide plate (7); a gap is arranged between the long inserts (8) and the short inserts (9) arranged opposite to each other, and the inner ends of the long inserts (8) and the short inserts (9) are both against the side of the long inserts (8) inserted in the gap; the lower template (2) is provided with three groups of external anti-eccentricity long core-pulling mechanisms (10) respectively connected to the front slide plate (4), the rear slide plate (5) and the left slide plate (6); the lower template (2) is also provided with an internal anti-eccentricity long core-pulling mechanism (11) connected to the right slide plate (7).

2. The anti-eccentricity long core pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 1 is characterized in that: The long inserts (8) and the short inserts (9) are horizontally and vertically arranged on the front slide plate (4), the rear slide plate (5), the left slide plate (6) and the right slide plate (7).

3. The anti-eccentricity long core pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 2 is characterized in that: The external anti-eccentricity long core pulling mechanism (10) includes a No. 1 translation driver (12) connected to the front slide (4), the rear slide (5) or the left slide (6) through a No. 1 slide connecting plate, the output shaft end of the No. 1 translation driver (12) is fixedly connected to the lower template (2), and also includes a No. 1 anti-eccentricity limiting structure.

4. The anti-eccentricity long core-pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 3 is characterized in that: The No. 1 anti-eccentricity limit structure comprises two No. 1 limit seats (13) arranged in parallel on both sides of the No. 1 translation driver (12); the No. 1 limit seat (13) is fixed on the lower template (2); the No. 1 limit seat (13) is provided with a No. 1 limit slot (14); the bottom of the front slide (4), the rear slide (5) or the left slide (6) is fixedly connected with a No. 1 limit block (15) inserted into the No. 1 limit slot (14).

5. The anti-eccentricity long core-pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 4 is characterized in that: The built-in anti-eccentricity long core pulling mechanism (11) includes two No. 2 translation drivers (16) fixed at the bottom of the lower template (2), the outer end of the No. 2 translation driver (16) is fixedly connected with a No. 2 slide connecting plate (17), the upper end of the No. 2 slide connecting plate (17) is connected to the right slide (7), and also includes a No. 2 anti-eccentricity limiting structure.

6. The anti-eccentricity long core-pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 5 is characterized in that: The No. 2 anti-eccentricity limit structure comprises two No. 2 limit seats (18) arranged in parallel on the outside of two No. 2 translation drivers (16); the No. 2 limit seats (18) are fixed on the lower template (2); the No. 2 limit seats (18) are provided with No. 2 limit grooves (19); and the bottom of the right slide plate (7) is fixedly connected with a No. 2 limit block (20) inserted into the No. 2 limit groove (19).

7. The anti-eccentricity long core-pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 6 is characterized in that: The cross sections of the No. 1 limiting slide groove (14), the No. 1 limiting block (15), the No. 2 limiting slide groove (19) and the No. 2 limiting block (20) are T-shaped.

8. The anti-eccentricity long core-pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 5 is characterized in that: The outer end of the right slide plate (7) is provided with two vertical slide grooves (21) with T-shaped cross-sections, and the cross-sections of the vertical slide grooves (21) are T-shaped. The second slide plate connecting plate (17) is fixedly connected to a push-pull slider (22) inserted into the vertical slide groove (21).

9. The anti-eccentricity long core-pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 1 is characterized in that: The inner end of the left slide plate (6) is also provided with four upper insert rods (23) horizontally inserted into the molding cavity (3), and the upper insert rods (23) are located on the upper side of the long insert block (8) and the short insert block (9).

10. The anti-eccentricity long core-pulling mechanism of the double-sided Sichuan-shaped pallet injection mold according to claim 9 is characterized in that: The inner end of the front slide plate (4) is also provided with four lower insert rods (24) horizontally inserted into the molding cavity (3), and the lower insert rods (24) are located at the lower side of the long insert block (8) and the short insert block (9).

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