A vacuum forming mold positioning device

Abstract

This utility model relates to the field of vacuum forming mold technology and discloses a vacuum forming mold positioning device, including a base, a lower mold disposed on the top of the base, an upper mold slidably connected to the outside of the lower mold, a positioning component installed in the middle of the upper mold, and a replacement component installed in the middle of the lower mold. The positioning component includes a connecting block, which is fixedly connected to both sides of the upper mold. A housing is fixedly connected to the top of the connecting block, and a locking pin is slidably connected to the middle of the housing. A slot and a positioning hole are formed in the middle of the lower mold, and the locking pin engages with the slot. In this utility model, by engaging the locking pin with the slot of the lower mold and slidingly engaging the positioning pin at the bottom of the upper mold with the positioning hole of the lower mold, precise positioning is further achieved in the vertical direction, effectively ensuring the high precision and stability of mold positioning.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming mold technology, and in particular to a vacuum forming mold positioning device. Background Technology

[0002] Vacuum forming is a plastic processing technique. Its main principle involves heating a flat sheet of rigid plastic until it softens, then applying it to a mold surface, where it cools and solidifies. This technique is used in various industries. Vacuum-formed products have a wide range of applications, primarily in the electronics and electrical appliance industries, food industry, hardware tools, cosmetics industry, toy industry, daily necessities industry, pharmaceutical and health product industries, automotive industry, stationery and sporting goods industry, and other related sectors.

[0003] Existing vacuum forming mold positioning devices typically rely on bolts to fix the lower mold to the base during mold replacement. Disassembly requires loosening each bolt individually, and installation necessitates repeated calibration, all while maintaining the positioning reference manually. Furthermore, the mold is prone to wobbling at the top during processing, and disassembly is difficult, requiring the removal of fixing components for mold replacement. This impacts vacuum forming mold production efficiency. Therefore, a vacuum forming mold positioning device is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a vacuum forming mold positioning device, which aims to improve the problem of poor mold stability during the processing of existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vacuum forming mold positioning device includes a base, a lower mold is disposed on the top of the base, an upper mold is slidably connected to the outside of the lower mold, a positioning component is installed in the middle of the upper mold, and a replacement component is installed in the middle of the lower mold.

[0007] The positioning component includes a connecting block, which is fixedly connected to both sides of the upper mold. A housing is fixedly connected to the top of the connecting block, and a locking pin is slidably connected to the middle of the housing. A slot and a positioning hole are opened in the middle of the lower mold, and the locking pin is engaged with the slot.

[0008] As a further description of the above technical solution:

[0009] The replacement component includes a movable block, which is installed on the top of the lower mold. A locking block is fixedly connected to the bottom of the movable block. A sliding groove is provided in the middle of the lower mold. The locking block is slidably connected to the middle of the sliding groove. A hollow groove is opened in the middle of the base. The locking block is slidably connected to the middle of the hollow groove and interlocks with each other.

[0010] As a further description of the above technical solution:

[0011] A spring is sleeved on the outside of the locking post, and a pull ring is provided in the middle of the locking post;

[0012] As a further description of the above technical solution:

[0013] A second spring is fixedly connected to the bottom of the movable block, and the second spring is installed between the lower mold and the movable block;

[0014] As a further description of the above technical solution:

[0015] The bottom of the upper mold is fixedly connected to a positioning pin, which is slidably connected inside the positioning hole.

[0016] As a further description of the above technical solution:

[0017] The upper mold has a slide rail inside, and a fixed block is slidably connected inside the slide rail. The fixed block is slidably connected to the outside of the lower mold.

[0018] As a further description of the above technical solution:

[0019] The lower mold has a groove in the middle, and the upper mold has a protrusion fixedly connected inside;

[0020] As a further description of the above technical solution:

[0021] A fixing bolt is provided in the middle of the lower mold, and the fixing bolt is threadedly connected to the middle of the base.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the locking pin engages with the slot of the lower mold, and the positioning pin at the bottom of the upper mold slides with the positioning hole of the lower mold, thereby achieving precise positioning in the vertical direction. This greatly reduces problems such as flash and deformation of products caused by mold misalignment, and effectively ensures the high precision and stability of mold positioning.

[0024] 2. In this utility model, the structure consisting of a movable block, a locking block, a sliding groove, and an empty groove allows the lower mold to be removed from the base simply by pressing the movable block to overcome the elastic force of the second spring and disengage the locking block from the empty groove. This shortens the mold change time, improves production efficiency, and reduces mold maintenance time. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a vacuum forming mold positioning device proposed in this utility model;

[0026] Figure 2This is a schematic diagram of the hole groove structure of a vacuum forming mold positioning device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the upper mold of a vacuum forming mold positioning device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the clamping post of the vacuum forming mold positioning device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the movable block of a vacuum forming mold positioning device proposed in this utility model.

[0030] Legend:

[0031] 1. Base; 2. Lower mold; 3. Upper mold; 4. Outer shell; 5. Fixing bolt; 6. Movable block; 7. Positioning hole; 8. Hole groove; 9. Fixing block; 10. Connecting block; 11. Positioning pin; 12. Protrusion; 13. Slide rail; 14. Locking post; 15. Spring one; 16. Pull ring; 17. Groove; 18. Hollow groove; 19. Locking block; 20. Spring two; 21. Slide groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-4This utility model provides an embodiment of a vacuum forming mold positioning device, including a base 1, a lower mold 2 on the top of the base 1, an upper mold 3 slidably connected to the outside of the lower mold 2, a positioning component installed in the middle of the upper mold 3, and a replacement component installed in the middle of the lower mold 2. The positioning component includes a connecting block 10, which is fixedly connected to both sides of the upper mold 3. A housing 4 is fixedly connected to the top of the connecting block 10, and a locking post 14 is slidably connected to the middle of the housing 4. The lower mold 2 has a slot 8 and a positioning hole 7 in the middle, and the locking post 14 engages with the slot 8. A spring 15 is sleeved on the outside of the locking post 14, and a pull ring 16 is provided in the middle of the locking post 14. When the locking post 14 is aligned with the slot 8 of the lower mold 2, the spring 15 pushes and locks it quickly into the slot, while the positioning pin 11 is inserted into the positioning hole 7. With the structural limitation of the protrusion 12 and the groove 17, and the slide rail 13 and the fixing block 9, a multi-dimensional positioning system is formed. During disassembly, pulling the pull ring 16 overcomes the spring force and pulls out the locking pin 14, thus releasing the positioning and achieving rapid and precise mold positioning, ensuring the stability of the thermoforming process and the precision of the product. Its working principle and effects are as follows: A positioning pin 11 is fixedly connected to the bottom of the upper mold 3, and the positioning pin 11 is slidably connected inside the positioning hole 7. A slide rail 13 is provided inside the upper mold 3, and a fixing block 9 is slidably connected inside the slide rail 13, which is slidably connected to the outside of the lower mold 2. A groove 17 is provided in the middle of the lower mold 2, and a protrusion 12 is fixedly connected inside the upper mold 3. The protrusion 12 of the upper mold 3 and the groove 17 of the lower mold 2 cooperate with each other, and the sliding connection between the slide rail 13 and the fixing block 9 further enhances the tightness and stability of the mold when it is closed, effectively preventing the mold from shaking during operation, and laying a solid foundation for producing high-quality, consistent thermoformed products. A fixing bolt 5 is provided in the middle of the lower mold 2. The fixing bolt 5 is threaded to the middle of the base 1. The lower mold 2 is securely installed on the base 1 by fixing bolt 5, ensuring that the lower mold 2 remains stable in subsequent operations.

[0034] Reference Figure 1 , Figure 2 and Figure 5The replacement component includes a movable block 6, which is installed on top of the lower mold 2. A locking block 19 is fixedly connected to the bottom of the movable block 6. A slide groove 21 is provided in the middle of the lower mold 2, and the locking block 19 is slidably connected to the middle of the slide groove 21. A slot 18 is opened in the middle of the base 1, and the locking block 19 is slidably connected to the middle of the slot 18 and interlocks with each other. A second spring 20 is fixedly connected to the bottom of the movable block 6. When the lower mold 2 needs to be replaced, the movable block 6 is pressed and rotated to overcome the elastic force of the second spring 20, causing the movable block 6 to slide down along the slide groove 21, which drives the locking block 19 to disengage from the slot 18. The fixing bolts are unscrewed, and the lower mold 2 is removed from the base 1. The new lower mold 2 is placed on the base 1, the movable block 6 is released, and the second spring 20 pushes the movable block 6 upward, causing the locking block 19 to re-engage in the slot 18, completing the quick installation and fixing of the lower mold 2. This shortens mold changeover time, effectively improves production efficiency, meets the rapid production changeover needs of small-batch, multi-variety production, and enhances installation stability and ease of operation. Spring 20 is installed between the lower mold 2 and the movable block 6. Under the elastic force of spring 20, the movable block 6 causes the locking block 19 to engage in the slot 18 of the base 1, further enhancing the fixing effect of the lower mold 2.

[0035] Working Principle: When mold positioning and closing operations are required, the positioning pin 11 at the bottom of the upper mold 3 aligns with the positioning hole 7 of the lower mold 2, providing initial guidance. Inside the outer shell 4 of the connecting block 10, the retaining post 14, under the preload of the spring 15, maintains a downward extending tendency. When the retaining post 14 aligns with the slot 8 in the middle of the lower mold 2, the spring 15 pushes the retaining post 14 to quickly engage in the slot 8, achieving precise horizontal positioning of the upper and lower molds 2 and preventing lateral misalignment during mold closing. The pull ring 16 in the middle of the retaining post 14 allows operators to easily remove the retaining post 14 from the slot 8 by pulling the pull ring 16 to overcome the spring force of the spring 15 when mold disassembly is required. After the operation is completed, the upper mold 3 is opened, and the above positioning process is repeated for the next thermoforming operation.

[0036] When it is necessary to replace the lower mold 2, the operator presses the movable block 6 to overcome the elastic force of the second spring 20, causing the movable block 6 to drive the locking block 19 to slide downwards in the slide groove 21 until the locking block 19 disengages from the empty groove 18 of the base 1. At this point, the lower mold 2 can be removed from the base 1 and replaced with a new lower mold 2. After placing the new lower mold 2 on the base 1, the movable block 6 is released, the second spring 20 returns to its original deformation, pushing the movable block 6 upwards, causing the locking block 19 to re-engage in the empty groove 18, completing the quick replacement of the lower mold 2 and preparing for subsequent production.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A blister mold positioning device comprising a base (1), characterized in that: The base (1) is provided with a lower mold (2) on its top, and an upper mold (3) is slidably connected to the outside of the lower mold (2). A positioning component is installed in the middle of the upper mold (3), and a replacement component is installed in the middle of the lower mold (2). The positioning component includes a connecting block (10), which is fixedly connected to both sides of the upper mold (3). A housing (4) is fixedly connected to the top of the connecting block (10). A locking post (14) is slidably connected to the middle of the housing (4). A slot (8) and a positioning hole (7) are provided in the middle of the lower mold (2). The locking post (14) is engaged with the slot (8).

2. A blister mold positioning device according to claim 1, wherein: The replacement component includes a movable block (6), which is installed on the top of the lower mold (2). A locking block (19) is fixedly connected to the bottom of the movable block (6). A sliding groove (21) is provided in the middle of the lower mold (2). The locking block (19) is slidably connected to the middle of the sliding groove (21). A hollow groove (18) is opened in the middle of the base (1). The locking block (19) is slidably connected to the middle of the hollow groove (18) and interlocks with each other.

3. A blister mold positioning device as defined in claim 1, wherein: A spring (15) is sleeved on the outside of the locking post (14), and a pull ring (16) is provided in the middle of the locking post (14).

4. A blister mold positioning device as defined in claim 2, wherein: A second spring (20) is fixedly connected to the bottom of the movable block (6), and the second spring (20) is installed between the lower mold (2) and the movable block (6).

5. The blister mold positioning device of claim 1, wherein: The bottom of the upper mold (3) is fixedly connected to a positioning pin (11), which is slidably connected inside the positioning hole (7).

6. The positioning device for a vacuum forming mold according to claim 1, characterized in that: The upper mold (3) has a slide rail (13) inside, and a fixing block (9) is slidably connected inside the slide rail (13). The fixing block (9) is slidably connected to the outside of the lower mold (2).

7. A blister mold positioning device as defined in claim 1, wherein: The lower mold (2) has a groove (17) in the middle, and the upper mold (3) has a protrusion (12) fixedly connected inside.

8. The blister mold positioning device of claim 1, wherein: A fixing bolt (5) is provided in the middle of the lower mold (2), and the fixing bolt (5) is threadedly connected to the middle of the base (1).

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