Forming device for PVC box production

Abstract

The utility model discloses a kind of forming devices for PVC box production, including top plate and bottom plate, the top plate and bottom plate are fixedly connected by being arranged in the column of four corners, further include: movable plate, sliding sleeve is set on column;Fixed projection die, fixedly connected in movable plate bottom;Movable projection die, sliding fit in fixed projection die both sides;Cavity die, fixedly connected on bottom plate;Push plate, sliding fit in cavity die both sides;Guide rod, fixedly connected with push plate after being passed through cavity die;Material plate, along vertical through bottom plate and cavity die middle part;Air compressor, fixedly installed on movable plate, the output end of the air compressor is fixedly communicated with fixed projection die.

Description

Technical Field

[0001] This utility model relates to the field of plastic box molding technology, and in particular to a molding device for PVC box production. Background Technology

[0002] With the rapid development of various industries, the demand for product packaging is increasing. Plastic packaging boxes, due to their excellent sealing properties and ease of use, have been widely used in product packaging across multiple industries. Currently, common manufacturing processes for plastic packaging boxes mainly include injection molding and thermoforming technologies.

[0003] However, existing PVC box forming equipment still has some shortcomings: the dimensions of the concave and convex dies of such equipment are usually fixed and cannot be adjusted, and can only be used to press boxes of a single size, thus having poor applicability and making it difficult to meet diverse production needs. Utility Model Content

[0004] The purpose of this utility model is to provide a molding device for PVC box production in order to solve the technical problems mentioned in the background art.

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

[0006] A molding apparatus for producing PVC boxes includes a top plate and a bottom plate, wherein the top plate and the bottom plate are fixedly connected by columns arranged at the four corners, and further includes:

[0007] The movable panel is slidably fitted onto the column;

[0008] The fixed punch is fixedly connected to the bottom of the movable plate;

[0009] The movable punch slides between the two sides of the fixed punch.

[0010] The die is fixedly connected to the base plate;

[0011] The push plate slides on both sides of the die cavity;

[0012] The guide rod passes through the die and is fixedly connected to the push plate;

[0013] The top plate extends vertically through the bottom plate and the middle of the die cavity;

[0014] An air compressor is fixedly mounted on a movable plate, and the output end of the air compressor is fixedly connected to a fixed punch.

[0015] As a further description of the above technical solution:

[0016] A dual-axis motor is fixedly installed on the top of the movable plate. The output shaft of the dual-axis motor is connected to two drive screws at both ends. A slide rod that moves along its axial direction is screwed onto the drive screw. A linkage rod is movably connected between the slide rod and the guide rod.

[0017] As a further description of the above technical solution:

[0018] The movable plate has a sliding groove, the first free end of the linkage rod passes through the sliding groove and is fixedly connected to the movable punch, and the second free end of the linkage rod passes vertically through the guide rod.

[0019] As a further description of the above technical solution:

[0020] A first hydraulic rod is fixedly installed on the top plate, and the free end of the first hydraulic rod is fixedly connected to the movable plate.

[0021] As a further description of the above technical solution:

[0022] A fixing frame is fixedly connected to the bottom of the base plate, and a second hydraulic rod is fixedly installed on the fixing frame. The free end of the second hydraulic rod is fixedly connected to the top plate.

[0023] As a further description of the above technical solution:

[0024] The base plate has clearance grooves on both sides to accommodate the passage of the linkage rod.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0026] 1. In this utility model, when it is necessary to change products of different sizes, the dual-axis motor is started to drive the transmission screw to rotate, the slide bar moves along the screw axis, and drives the linkage rod to move. The first free end of the linkage rod pulls the movable punch to move laterally, changing the mold width. The second free end of the linkage rod adjusts the position of the push plate synchronously through the guide rod to ensure that the upper and lower molds match, adapting to the production needs of products of various sizes, and enhancing the versatility and market competitiveness of the equipment.

[0027] 2. In this utility model, the use of compressed air provided by an air compressor to assist in molding helps to ensure that the material is evenly distributed in the mold, thereby improving the quality and consistency of the finished product and reducing the defect rate. Attached Figure Description

[0028] Figure 1 This diagram shows a three-dimensional structural schematic of a molding apparatus for PVC box production according to an embodiment of the present invention;

[0029] Figure 2This is a top view schematic diagram of a molding apparatus for PVC box production according to an embodiment of the present invention;

[0030] Figure 3 It shows Figure 2 Schematic sectional view along the middle AA direction;

[0031] Figure 4 It shows Figure 3 Enlarged diagram of point B in the middle.

[0032] Legend:

[0033] 1. Top plate; 2. First hydraulic rod; 3. Column; 4. Movable plate; 401. Slide groove; 5. Bottom plate; 501. Clearance groove; 6. Linkage rod; 7. Slide rod; 8. Transmission screw; 9. Guide rod; 10. Die; 11. Push plate; 12. Movable punch; 13. Fixed punch; 14. Ejector plate; 15. Fixing frame; 16. Second hydraulic rod; 17. Air compressor; 18. Dual-shaft motor. Detailed Implementation

[0034] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figure 1-4This utility model provides a technical solution: a molding device for PVC box production, including a top plate 1 and a bottom plate 5. The top plate 1 and the bottom plate 5 are fixedly connected by columns 3 arranged at the four corners. The columns 3 provide guidance to ensure the vertical movement of the movable plate 4. The movable plate 4 is slidably sleeved on the columns 3 and is the core part for vertical movement, driving the fixed punch 13 to perform a pressing action. A first hydraulic rod 2 is fixedly installed on the top plate 1. The free end of the first hydraulic rod 2 is fixedly connected to the movable plate 4. The first hydraulic rod 2 drives the movable plate 4 to move downward to complete the pressing action. The fixed punch 13 is fixedly connected to the bottom of the movable plate 4 and is the upper part of the mold. The movable punch 12 is slidably fitted on both sides of the fixed punch 13 and can move laterally as needed to adapt to different sizes of PVC boxes. The C-shaped product has a concave mold 10 fixedly connected to the base plate 5. A push plate 11 is slidably fitted on both sides of the concave mold 10 to adjust the mold width of the concave mold 10. A guide rod 9 passes through the concave mold 10 and is fixedly connected to the push plate 11, serving as a guide and linkage. An ejector plate 14 vertically penetrates the base plate 5 and the middle of the concave mold 10 to eject the product during demolding. A fixed frame 15 is fixedly connected to the bottom of the base plate 5. A second hydraulic rod 16 is fixedly installed on the fixed frame 15. The free end of the second hydraulic rod 16 is fixedly connected to the ejector plate 14 to control the lifting and lowering of the ejector plate 14 for demolding operations. An air compressor 17 is fixedly installed on the movable plate 4. The output end of the air compressor 17 is fixedly connected to the fixed punch 13 to provide compressed air to the fixed punch 13 for pneumatic assisted molding and to improve product quality.

[0036] Specifically, such as Figure 3 and Figure 4 As shown, a dual-axis motor 18 is fixedly installed on the top of the movable plate 4 to provide power and drive the transmission screw 8 to rotate. The output shaft of the dual-axis motor 18 is connected to the transmission screw 8 at both ends. The rotation drives the slide rod 7 to move axially. The slide rod 7, which moves axially, is screwed onto the transmission screw 8. The movable plate 4 has a sliding groove 401 to allow the linkage rod 6 to slide. The two ends of the slide rod 7 are fixedly connected to the linkage rod 6. The first free end of the linkage rod 6 passes through the sliding groove 401 and is fixedly connected to the movable punch 12 to adjust its lateral position. The second free end of the linkage rod 6 passes vertically through the guide rod 9 to realize linkage control. The bottom plate 5 has clearance grooves 501 on both sides to accommodate the passage of the linkage rod 6 without interfering with the movement.

[0037] Working principle: During use, the PVC sheet to be formed is placed above the concave mold 10, ensuring that the movable punch 12 is in the initial position, suitable for the size requirements of the current product. The first hydraulic rod 2 is activated, pushing the movable plate 4 downward along the column 3. The fixed punch 13 and the movable punch 12 move downward together, pressing the PVC sheet. The air compressor 17 is started, supplying air to the fixed punch 13, forming an air pressure difference inside, so that the PVC adheres to the mold surface, improving the molding quality. After pressing is completed, the first hydraulic rod 2 returns, the movable plate 4 rises to reset, and the second hydraulic rod 16 is activated, pushing the ejector plate 14 upward to eject the formed PVC box from the concave mold 10. The operator can easily pick up the part, completing one cycle. Through automated operation, manual intervention is reduced, the continuity and speed of production are improved, and the manufacturing time of a single product is reduced.

[0038] When it is necessary to change to products of different sizes, the dual-axis motor 18 is started, driving the transmission screw 8 to rotate. The slide bar 7 moves along the screw axis, driving the linkage rod 6 to move. The first free end of the linkage rod 6 pulls the movable punch 12 to move laterally, changing the mold width. The second free end of the linkage rod 6 adjusts the position of the push plate 11 synchronously through the guide rod 9 to ensure that the upper and lower molds match, adapting to the production needs of products of various sizes, and enhancing the versatility and market competitiveness of the equipment.

[0039] 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 molding apparatus for producing PVC boxes, comprising a top plate (1) and a bottom plate (5), wherein the top plate (1) and the bottom plate (5) are fixedly connected by columns (3) arranged at the four corners, characterized in that, Also includes: The movable plate (4) is slidably fitted onto the column (3); The fixed punch (13) is fixedly connected to the bottom of the movable plate (4); The movable punch (12) slides on both sides of the fixed punch (13); The die (10) is fixedly connected to the base plate (5); The push plate (11) is slidably fitted on both sides of the die (10); The guide rod (9) passes through the die (10) and is fixedly connected to the push plate (11); The top plate (14) extends vertically through the middle of the bottom plate (5) and the die (10); An air compressor (17) is fixedly installed on a movable plate (4), and the output end of the air compressor (17) is fixedly connected to a fixed punch (13).

2. The molding apparatus for PVC box production according to claim 1, characterized in that, A dual-axis motor (18) is fixedly installed on the top of the movable plate (4). The output shaft of the dual-axis motor (18) is connected to a transmission screw (8) at both ends. A slide rod (7) that moves along its axial direction is connected to the transmission screw (8) by a thread. A linkage rod (6) is movably connected between the slide rod (7) and the guide rod (9).

3. The molding apparatus for PVC box production according to claim 2, characterized in that, The movable plate (4) is provided with a sliding groove (401). The first free end of the linkage rod (6) passes through the sliding groove (401) and is fixedly connected to the movable punch (12). The second free end of the linkage rod (6) passes through the guide rod (9) vertically.

4. The molding apparatus for PVC box production according to claim 3, characterized in that, A first hydraulic rod (2) is fixedly installed on the top plate (1), and the free end of the first hydraulic rod (2) is fixedly connected to the movable plate (4).

5. A molding apparatus for PVC box production according to claim 4, characterized in that, The bottom of the base plate (5) is fixedly connected to a fixing frame (15), and a second hydraulic rod (16) is fixedly installed on the fixing frame (15). The free end of the second hydraulic rod (16) is fixedly connected to the top plate (14).

6. The molding apparatus for PVC box production according to claim 5, characterized in that, The base plate (5) has clearance grooves (501) on both sides to accommodate the passage of the linkage rod (6).

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