High-precision modular mold opening and closing precision positioning structure of plastic molding machine

Abstract

The utility model relates to the technical field of plastic making machine, and disclose a high-precision modularization plastic making machine opening and closing mold precision positioning structure. Including lower die holder, upper die plate and forming module, the forming module fixedly connected at the bottom of upper die plate, the upper die plate places the upper surface of lower die holder, the bottom fixedly connected with locating insert block of upper die plate, the inner wall of locating insert block has been equipped with recess. The utility model provides when locating insert block inserts, the clamping plate is extruded in the inner wall of the slot, rotates around the fixed rod and compresses the torsional spring, makes the clamping plate to the inside of locating insert block and gathers, when locating insert block inserts the slot completely, and the clamping plate is aligned with the clamping groove of lower die holder slot inner wall, the torsional spring restores deformation, pushes the clamping plate and rotates outward, can make locating insert block and clamping plate respectively closely adhere and set up in the inner wall of slot and clamping groove, and the torsional spring removes the clamping plate and can improve the positioning tightness, improves the docking accuracy and service life simultaneously, reduces the influence that the structure wears.

Description

Technical Field

[0001] This utility model relates to the field of plastic forming machine technology, and in particular to a high-precision modular plastic forming machine mold opening and closing precision positioning structure. Background Technology

[0002] Plastic forming machines are key equipment for processing plastic raw materials into various plastic products. They are widely used in industries such as packaging, automobiles, home appliances, building materials, and medical care. Their core principle is to transform granular or powdered plastic raw materials into products with specific shapes and properties through processes such as heating, plasticizing, and pressurizing.

[0003] In existing technologies, if the mold opening and closing positioning of a high-precision modular plastic forming machine cannot achieve precise alignment, it will affect the processing accuracy of the machine. Furthermore, conventional positioning structures will experience wear and tear after prolonged use, thus affecting subsequent alignment accuracy. Therefore, this invention designs a precision positioning structure for the mold opening and closing of a high-precision modular plastic forming machine. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the use of high-precision modular plastic making machines, if the mold opening and closing positioning cannot be precisely aligned, it will affect the processing accuracy of the high-precision modular plastic making machine. Furthermore, conventional positioning structures will wear down after long-term use, thus affecting the subsequent alignment accuracy. Therefore, this invention proposes a high-precision modular plastic making machine mold opening and closing precision positioning structure.

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

[0006] A high-precision modular plastic forming machine opening and closing precision positioning structure includes a lower mold base, an upper mold plate, and a forming module. The forming module is fixedly connected to the bottom of the upper mold plate. The upper mold plate is placed on the upper surface of the lower mold base. A positioning block is fixedly connected to the bottom of the upper mold plate. A groove is formed on the inner wall of the positioning block. A slot is formed on the inner wall of the top of the lower mold base. The positioning block is inserted into the inner wall of the slot. A fixing rod is fixedly connected to the positioning block on the inner wall of the groove. A retaining plate and a torsion spring are movably sleeved on the wall of the fixing rod. One end of the torsion spring is fixedly connected to the inner wall of the retaining plate, and the other end of the torsion spring is fixedly connected to the inner wall of the positioning block. A slot is formed on the inner wall of the slot of the lower mold base, and the retaining plate is clamped to the inner wall of the slot.

[0007] Preferably, a fixing block is fixedly connected to the side wall of the upper mold plate, a positioning slide rod is fixedly connected to the bottom of the fixing block, a positioning ring is fixedly connected to the side wall of the lower mold base, and the rod wall of the positioning slide rod is slidably disposed on the inner wall of the positioning ring.

[0008] Preferably, a rubber pad is fixedly connected to one end of the card plate away from the fixing rod, and a rubber anti-slip pad is fixedly connected to the inner wall of the lower mold base located in the card slot, with the rubber pad pressed tightly against the inner wall of the rubber anti-slip pad.

[0009] Preferably, a pull rope is fixedly connected to the side wall of the card plate, and a groove is provided on the inner wall of the top of the upper template. The end of the pull rope away from the card plate extends into the interior of the groove and is fixedly connected to a handle.

[0010] Preferably, the bottom sidewall of the positioning block has a chamfer.

[0011] Preferably, the rubber pad block is configured with an arc surface on one side relative to the rubber anti-slip pad.

[0012] Compared with the prior art, this utility model provides a high-precision modular plastic molding machine mold opening and closing precision positioning structure, which has the following beneficial effects:

[0013] 1. The high-precision modular plastic molding machine features a precision positioning structure for mold opening and closing. When the positioning insert is inserted, the clamping plate is squeezed by the inner wall of the slot, rotates around the fixed rod, and compresses the torsion spring, causing the clamping plate to retract into the positioning insert. When the positioning insert is fully inserted into the slot and the clamping plate is aligned with the slot on the inner wall of the lower mold base slot, the torsion spring returns to its original deformation, pushing the clamping plate to rotate outward. This allows the positioning insert and the clamping plate to fit tightly against the inner walls of the slot and slot, respectively. The torsion spring pushing the clamping plate out improves the positioning tightness, while also increasing the docking accuracy and service life, and reducing the impact of structural wear.

[0014] 2. The high-precision modular plastic forming machine features a precision positioning structure for mold opening and closing. The positioning slide rod at the bottom of the fixing block on the side wall of the upper mold plate will be inserted into the positioning ring on the side wall of the lower mold base. The positioning slide rod slides on the inner wall of the positioning ring, providing guidance for the falling of the upper mold plate, further ensuring the precise alignment of the upper mold plate and the lower mold base in the horizontal direction and preventing offset.

[0015] 3. The high-precision modular plastic forming machine features a precise positioning structure for mold opening and closing. A handle, via a pull rope, rotates a clamping plate around a fixed rod, compressing a torsion spring and causing the clamping plate to disengage from its slot. Once disengaged, the upper mold plate can be easily lifted from the lower mold base, completing the mold opening operation. Throughout this process, the positioning structure achieves high-precision mold opening and closing positioning through the coordinated operation of multiple components, ensuring the accuracy and stability of the mold position during the molding process, thereby improving the precision and quality of the molded products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a high-precision modular plastic forming machine mold opening and closing precision positioning structure proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0018] Figure 3 for Figure 2 Three-dimensional view of the positioning insert block.

[0019] In the diagram: 1. Lower mold base, 2. Upper mold plate, 3. Molding module, 4. Fixing block, 5. Positioning slide rod, 6. Positioning ring, 7. Positioning insert, 8. Fixing rod, 9. Card plate, 10. Torsion spring, 11. Rubber pad, 12. Rubber anti-slip pad, 13. Pull rope, 14. Handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1

[0022] Reference Figure 1-3 A high-precision modular plastic forming machine opening and closing precision positioning structure includes a lower mold base 1, an upper mold plate 2, and a forming module 3. The forming module 3 is fixedly connected to the bottom of the upper mold plate 2. The upper mold plate 2 is placed on the upper surface of the lower mold base 1. A positioning block 7 is fixedly connected to the bottom of the upper mold plate 2. A groove is formed on the inner wall of the positioning block 7. A slot is formed on the inner wall of the top of the lower mold base 1. The positioning block 7 is inserted into the inner wall of the slot. A fixing rod 8 is fixedly connected to the inner wall of the positioning block 7 in the groove. A clamping plate 9 and a torsion spring 10 are movably sleeved on the rod wall of the fixing rod 8. One end of the torsion spring 10 is fixedly connected to the inner wall of the clamping plate 9, and the other end of the torsion spring 10 is fixedly connected to the inner wall of the positioning block 7. A slot is formed on the inner wall of the slot in the lower mold base 1. The clamping plate 9 is clamped in the inner wall of the slot. A chamfer is formed on the bottom side wall of the positioning block 7.

[0023] A fixing block 4 is fixedly connected to the side wall of the upper template 2, and a positioning slide rod 5 is fixedly connected to the bottom of the fixing block 4. A positioning ring 6 is fixedly connected to the side wall of the lower mold base 1, and the rod wall of the positioning slide rod 5 is slidably set on the inner wall of the positioning ring 6.

[0024] During the mold closing process, the operator places the upper template 2 into the lower mold base 1. At this time, the positioning block 7 at the bottom of the upper template 2 can be smoothly inserted into the slot on the inner wall of the top of the lower mold base 1 by means of the chamfered angle of the bottom side wall. When the positioning block 7 is inserted, the clamping plate 9 is squeezed by the inner wall of the slot, rotates around the fixing rod 8 and compresses the torsion spring 10, so that the clamping plate 9 is retracted into the positioning block 7. When the positioning block 7 is fully inserted into the slot and the clamping plate 9 is aligned with the slot of the inner wall of the slot of the lower mold base 1, the torsion spring 10 restores its deformation and pushes the clamping plate 9 to rotate outward. This allows the positioning block 7 and the clamping plate 9 to be tightly fitted on the inner wall of the slot and the slot, respectively. The torsion spring 10 pushing the clamping plate 9 out can improve the positioning tightness, improve the docking accuracy and service life, and reduce the impact of structural wear.

[0025] At the same time, the positioning slide rod 5 at the bottom of the fixing block 4 on the side wall of the upper template 2 will be inserted into the positioning ring 6 on the side wall of the lower mold base 1. The positioning slide rod 5 slides on the inner wall of the positioning ring 6, providing guidance for the fall of the upper template 2, further ensuring the accurate alignment of the upper template 2 and the lower mold base 1 in the horizontal direction, and preventing deviation.

[0026] Example 2

[0027] Reference Figure 1-3 A high-precision modular plastic forming machine opening and closing precision positioning structure includes a card plate 9 with a rubber pad 11 fixedly connected to one end away from the fixed rod 8, and a rubber anti-slip pad 12 fixedly connected to the inner wall of the lower mold base 1 located in the card slot. The rubber pad 11 is pressed and set on the inner wall of the rubber anti-slip pad 12, and the side of the rubber pad 11 relative to the rubber anti-slip pad 12 is set as an arc surface.

[0028] A pull rope 13 is fixedly connected to the side wall of the card plate 9. A groove is opened on the top inner wall of the upper template 2. The end of the pull rope 13 away from the card plate 9 extends into the inside of the groove and is fixedly connected to a handle 14.

[0029] The rubber pad 11 at the end of the card plate 9 opposite to the fixing rod 8 is tightly fitted with the rubber anti-slip pad 12 on the inner wall of the card slot. The arc design of the rubber pad 11 and the rubber anti-slip pad 12 work together to increase the friction and effectively buffer the impact force when clamping, ensuring that the card plate 9 is firmly clamped in the card slot, so as to achieve precise positioning and firm connection between the upper template 2 and the lower mold base 1.

[0030] During mold opening, the operator pulls the handle 14 in the groove on the inner wall of the top of the upper template 2. The handle 14 drives the clamping plate 9 to rotate around the fixed rod 8 through the pull rope 13, compressing the torsion spring 10 and causing the clamping plate 9 to disengage from the clamping slot. After the clamping plate 9 disengages from the clamping slot, the upper template 2 can be easily lifted from the lower mold base 1 to complete the mold opening operation. Throughout the process, this positioning structure achieves high-precision mold opening and closing positioning through the coordinated operation of multiple components, ensuring the accuracy and stability of the mold position during the molding process, thereby improving the precision and quality of the molded products.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision modular plastic molding machine mold opening and closing precision positioning structure, comprising a lower mold base (1), an upper mold plate (2) and a molding module (3), characterized in that: The molding module (3) is fixedly connected to the bottom of the upper template (2). The upper template (2) is placed on the upper surface of the lower mold base (1). The bottom of the upper template (2) is fixedly connected to a positioning block (7). The inner wall of the positioning block (7) is provided with a groove. The inner wall of the top of the lower mold base (1) is provided with a slot. The positioning block (7) is inserted into the inner wall of the slot. The positioning block (7) is fixedly connected to a fixing rod (8) on the inner wall of the groove. A card plate (9) and a torsion spring (10) are movably sleeved on the wall of the fixing rod (8). One end of the torsion spring (10) is fixedly connected to the inner wall of the card plate (9). The other end of the torsion spring (10) is fixedly connected to the inner wall of the positioning block (7). The lower mold base (1) is provided with a slot on the inner wall of the slot. The card plate (9) is clamped in the inner wall of the slot.

2. The high precision modular plastic molding machine mold opening and closing precision positioning structure according to claim 1, characterized in that: A fixing block (4) is fixedly connected to the side wall of the upper template (2), and a positioning slide rod (5) is fixedly connected to the bottom of the fixing block (4). A positioning ring (6) is fixedly connected to the side wall of the lower mold base (1), and the rod wall of the positioning slide rod (5) is slidably disposed on the inner wall of the positioning ring (6).

3. The high precision modular plastic molding machine mold opening and closing precision positioning structure according to claim 1, characterized in that: A rubber pad (11) is fixedly connected to one end of the card plate (9) away from the fixing rod (8). A rubber anti-slip pad (12) is fixedly connected to the inner wall of the card slot of the lower mold base (1). The rubber pad (11) is pressed and set on the inner wall of the rubber anti-slip pad (12).

4. The high precision modular plastic injection molding machine open-close mold precision positioning structure of claim 1, wherein: A pull rope (13) is fixedly connected to the side wall of the card plate (9), and a groove is provided on the top inner wall of the upper template (2). The end of the pull rope (13) away from the card plate (9) extends into the groove and is fixedly connected to a handle (14).

5. The high precision modular plastic injection molding machine open-close mold precision positioning structure of claim 1, wherein: The bottom side wall of the positioning block (7) is provided with a chamfer.

6. The high precision modular plastic injection molding machine open-close mold precision positioning structure of claim 3, wherein: The rubber pad (11) is curved on one side relative to the rubber anti-slip pad (12).

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