Locking device for closing automobile injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a locking device for closing an automobile injection mold, which comprises a bottom plate, the top end of the bottom plate is fixedly connected with a fixed mold, the top end of the fixed mold is provided with a movable mold, the outer wall of the movable mold is connected with a positioning rod through a positioning assembly, and the left end and the right end of the movable mold are connected with convex blocks through pressing assemblies. Clamping grooves are formed in the left side and the right side of the top end of the fixed mold correspondingly, first locking blocks are fixedly connected to the front end and the rear end of the fixed mold correspondingly, springs are fixedly connected to the outward ends of the first locking blocks correspondingly, and pull blocks are fixedly connected to the other ends of the springs correspondingly. According to the utility model, after the second locking block completely enters the first locking block, the limiting groove in the second locking block corresponds to the limiting block, at the moment, the spring drives the pull block to push the limiting block to enter the limiting groove, the second locking block is fixed in the first locking block, and the fixed mold and the movable mold are locked; a gap between the fixed mold and the movable mold in the injection molding process is reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a locking device for closing a mold of an automobile injection mold. Background Art

[0002] Automobile injection molds are tools used to make molded automobile parts, such as dashboards, bumpers, and auxiliary dashboards. When using injection molds to manufacture products, molten material is injected into the cavity formed by the movable mold and the fixed mold, and the product is formed after the molten material is cooled.

[0003] After searching, the locking device for automobile injection mold clamping with announcement number CN220261888U includes a fixed seat, the upper side wall of the fixed seat is fixedly connected to the fixed mold, the upper side of the fixed mold is provided with a movable mold, the side walls of the movable mold are fixedly connected to fixed plates, the fixed seat is hollow, and the inner bottom wall of the fixed seat is fixedly connected to a dual-axis motor, the two output shaft ends of the dual-axis motor are fixedly connected to a worm, and the threads of the outer walls of the two worms are arranged in opposite directions. The utility model can lock the movable mold and the fixed mold by respectively squeezing the two fixed plates downward at the ends of the two right-angle rods, thereby preventing the gap at the connection between the movable mold and the fixed mold from being too large, resulting in burrs on the finished product, thereby improving the quality of the finished product;

[0004] Based on the above patent, the existing injection mold mentioned in its background technology, in response to this technical problem, the present application proposes a locking device for automobile injection mold clamping, which lacks a locking mechanism and easily causes the gap between the movable mold and the fixed mold to be too large, resulting in burrs on the finished product, reducing the quality of the finished product. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a locking device for automobile injection mold clamping, which can lock the fixed mold and the movable mold, reduce the gap between the fixed mold and the movable mold, reduce product burrs and improve product quality.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A locking device for closing a mold of an automobile injection mold comprises a bottom plate, the top of the bottom plate is fixedly connected to a fixed mold, the top of the fixed mold is provided with a movable mold, the outer wall of the movable mold is connected to a positioning rod through a positioning assembly, the left and right ends of the movable mold are connected to protrusions through a clamping assembly, the left and right sides of the top of the fixed mold are provided with card slots, the front and rear ends of the fixed mold are fixedly connected to locking blocks one, the outward end of the locking block one is fixedly connected to a spring, the other end of the spring is fixedly connected to a pulling block, and the opposite end of the pulling block is fixedly connected to a limiting block.

[0008] Furthermore, the positioning assembly includes a fixing block 1 arranged on the outer wall of the movable mold, and positioning holes are arranged at four corners of the bottom end of the fixing block 1, and the outer walls of the positioning rods are respectively arranged on the inner walls of the positioning holes.

[0009] Furthermore, the clamping assembly includes two fixed blocks fixedly connected at the left and right ends of the movable mold, the inner walls of the two fixed blocks are rotatably connected to the rotating shaft, the outer walls of the rotating shaft are fixedly connected to the rotating blocks, and the inward ends of the protrusions are fixedly connected to the outward ends of the rotating blocks.

[0010] Furthermore, the front and rear sides of the bottom end of the fixing block 1 are fixedly connected with locking blocks 2, and the left and right ends of the locking block 2 are provided with limiting grooves.

[0011] Furthermore, the bottom ends of the positioning rods are fixedly connected to the four corners of the top end of the bottom plate.

[0012] Furthermore, one outward end of the locking block is fixedly connected to a telescopic rod, and the other end of the telescopic rod is fixedly connected to an opposite end of the pulling block.

[0013] Furthermore, both left and right sides of the bottom end of the movable mold are fixedly connected with clamping blocks, and the size of the clamping blocks matches the clamping slot.

[0014] Furthermore, the two outer walls of the locking block are both arranged on the first inner wall of the locking block.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, through the cooperation of locking block 1 and locking block 2 with the pulling block, the limiting block, the limiting groove, the spring and the telescopic rod, the device can lock the fixed mold and the movable mold, reduce the gap between the fixed mold and the movable mold, reduce the burrs of the product and improve the product quality.

[0017] 2. In the utility model, the positioning rod cooperates with the bottom plate, the fixing block, the positioning hole, the card slot and the card block, so that the device can accurately close the mold without causing skewness that affects product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a locking device for automobile injection mold clamping proposed by the utility model;

[0019] Figure 2 This is a right side perspective view of a locking device for automobile injection mold clamping proposed by the utility model;

[0020] Figure 3 This is an exploded view of a locking device for automobile injection mold clamping proposed by the utility model;

[0021] Figure 4The utility model is a schematic diagram of a locking structure in a locking device for closing a mold of an automobile injection mold.

[0022] Legend:

[0023] 1. Bottom plate; 2. Fixed mold; 3. Pull block; 4. Locking block 1; 5. Locking block 2; 6. Fixed block 1; 7. Positioning rod; 8. Moving mold; 9. Rotating block; 10. Fixed block 2; 11. Rotating shaft; 12. Positioning hole; 13. Slot; 14. Block; 15. Limit block; 16. Limit slot; 17. Spring; 18. Telescopic rod; 19. Bump. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-4 The utility model provides an embodiment: a locking device for automobile injection mold clamping, comprising a bottom plate 1, a fixed mold 2 is fixedly connected to the top of the bottom plate 1, a movable mold 8 is arranged on the top of the fixed mold 2, a fixed block 6 is arranged on the outer wall of the movable mold 8, a positioning hole 12 is arranged at the four corners of the bottom end of the fixed block 6, a positioning rod 7 is arranged on the inner wall of the positioning hole 12, the bottom ends of the positioning rod 7 are respectively fixedly connected to the four corners of the top end of the bottom plate 1, a card slot 13 is arranged on the left and right sides of the top end of the fixed mold 2, and a card block 14 is fixedly connected to the left and right sides of the bottom end of the movable mold 8, and the size of the card block 14 matches the card slot 13;

[0026] Specifically, when the movable mold 8 is pushed by the hydraulic rod or the electric push rod, the positioning hole 12 on the fixed block 6 will be driven to be sleeved on the corresponding positioning rod 7, cooperating with the clamping blocks 14 on both sides of the bottom end of the movable mold 8 and the clamping grooves 13 on both sides of the top end of the fixed mold 2, ensuring that the fixed mold 2 and the movable mold 8 can be accurately molded, preventing deviation and improving product quality.

[0027] The movable mold 8 is fixedly connected with a fixed block 2 10 at both ends, the inner wall of the fixed block 2 10 is rotatably connected with a rotating shaft 11, the outer wall of the rotating shaft 11 is fixedly connected with a rotating block 9, and the outer end of the rotating block 9 is fixedly connected with a protrusion 19, the front and rear sides of the bottom end of the fixed block 16 are fixedly connected with a locking block 2 5, and the left and right ends of the locking block 2 5 are provided with a limiting groove 16, the front and rear ends of the fixed mold 2 are fixedly connected with a locking block 1 4, the outer end of the locking block 1 4 is fixedly connected with a spring 17, and the other end of the spring 17 is fixedly connected with a pulling block 3, and the opposite end of the pulling block 3 is fixedly connected with a limiting block 15, and the outer end of the locking block 1 4 is fixedly connected with a telescopic rod 18, and the other end of the telescopic rod 18 is fixedly connected to the opposite end of the pulling block 3, and the outer wall of the locking block 2 5 is arranged on the inner wall of the locking block 1 4;

[0028] Specifically, the rotating block 9 is rotated to make the protrusion 19 butt against the top of the fixed block 6, so that the protrusion 19 generates pressure on the fixed block 6 to push it downward for a distance, so that the bottom end of the locking block 2 5 pushes the two limit blocks 15 and drives the pulling block 3 to stretch the spring 17. After the locking block 2 5 completely enters the locking block 1 4, the limit groove 16 on the locking block 2 5 will correspond to the limit block 15. At this time, the spring 17 will be reset under the action of elastic force to drive the pulling block 3 to push the limit block 15 into the limit groove 16, and the locking block 2 5 will be fixed inside the locking block 4, and the fixed mold 2 and the movable mold 8 are locked, thereby reducing the gap between the fixed mold 2 and the movable mold 8 during the injection molding process and improving the product quality.

[0029] Working principle: When the movable mold 8 is pushed by the hydraulic rod or the electric push rod, the positioning hole 12 on the fixed block 6 will be driven to be sleeved on the corresponding positioning rod 7, and the clamping blocks 14 on both sides of the bottom of the movable mold 8 and the clamping grooves 13 on both sides of the top of the fixed mold 2 will be matched to ensure that the fixed mold 2 and the movable mold 8 can be accurately molded to prevent deviation and improve product quality. The rotating block 9 is rotated to make the protrusion 19 abut against the top of the fixed block 6, so that the protrusion 19 generates pressure on the fixed block 6 to push it downward for a distance, so that the locking block The bottom end of the second 5 pushes the two limit blocks 15 and drives the pulling block 3 to stretch the spring 17. After the locking block 25 completely enters the locking block 14, the limit groove 16 on the locking block 25 will correspond to the limit block 15. At this time, the spring 17 will be reset under the action of elastic force to drive the pulling block 3 to push the limit block 15 into the limit groove 16, and the locking block 25 will be fixed inside the locking block 14, and the fixed mold 2 and the movable mold 8 will be locked, so as to reduce the gap between the fixed mold 2 and the movable mold 8 during the injection molding process and improve the product quality.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking device for a mold clamping of an automobile injection mold, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a fixed mold (2), the top of the fixed mold (2) is provided with a movable mold (8), the outer wall of the movable mold (8) is connected to a positioning rod (7) through a positioning assembly, the left and right ends of the movable mold (8) are connected to protrusions (19) through a clamping assembly, the left and right sides of the top of the fixed mold (2) are provided with clamping grooves (13), the front and rear ends of the fixed mold (2) are fixedly connected to locking blocks (4), the outward end of the locking blocks (4) is fixedly connected to a spring (17), the other end of the spring (17) is fixedly connected to a pull block (3), and the opposite end of the pull block (3) is fixedly connected to a limiting block (15).

2. A locking device for automobile injection mold clamping according to claim 1, characterized in that: The positioning assembly comprises a fixing block (6) arranged on the outer wall of the movable mold (8), the fixing block (6) having four bottom corners provided with positioning holes (12), and the outer walls of the positioning rods (7) are respectively arranged on the inner walls of the positioning holes (12).

3. The locking device for automobile injection mold clamping according to claim 1, characterized in that: The clamping assembly comprises a second fixed block (10) fixedly connected to the left and right ends of the movable mold (8), the inner wall of the second fixed block (10) is rotatably connected to a rotating shaft (11), the outer wall of the rotating shaft (11) is fixedly connected to a rotating block (9), and the inner end of the protrusion (19) is fixedly connected to the outer end of the rotating block (9).

4. The locking device for automobile injection mold clamping according to claim 2, characterized in that: The front and rear sides of the bottom end of the fixing block 1 (6) are fixedly connected to the locking block 2 (5), and the left and right ends of the locking block 2 (5) are both provided with limiting grooves (16).

5. The locking device for automobile injection mold clamping according to claim 1, characterized in that: The bottom ends of the positioning rods (7) are respectively fixedly connected to the four corners of the top end of the bottom plate (1).

6. The locking device for automobile injection mold clamping according to claim 1, characterized in that: The outward end of the locking block (4) is fixedly connected to a telescopic rod (18), and the other end of the telescopic rod (18) is fixedly connected to the opposite end of the pulling block (3).

7. The locking device for automobile injection mold clamping according to claim 1, characterized in that: The left and right sides of the bottom of the movable mold (8) are fixedly connected with clamping blocks (14), and the size of the clamping blocks (14) matches the clamping slot (13).

8. The locking device for automobile injection mold clamping according to claim 4, characterized in that: The outer walls of the second locking block (5) are arranged on the inner wall of the first locking block (4).

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