A blister tray production mold

Abstract

The utility model discloses a blister tray production is with mould belongs to mould technical field. The utility model discloses a lower die holder and upper die holder, is seted up with the sliding slot in the lower die holder, the sliding slot is slidably fitted with the transverse plate, and the outer surface of transverse plate is installed with linkage board, and the top of linkage board is installed with a row of ejection rod, and the top of every ejection rod is installed with the ejection block, and the outer surface of upper die holder is installed with the rectangular block, and the bottom of rectangular block is installed with the connecting band, and the end of transverse plate is seted up with the perforation, and the bottom of connecting band passes through the perforation and is installed with the block. The utility model discloses through setting up the rectangular block, the connecting band and the block, directly convert the opening mould movement into the jacking movement of ejection block, has realized the automation of stripping process, has simplified the overall structure of mould, has reduced the manufacturing cost and energy consumption, and moreover has guaranteed the ejection action and the opening mould process, has avoided the control complexity and the maintenance demand because of the additional drive system.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a mold for producing blister trays. Background Technology

[0002] Blister trays are widely used in packaging for electronics, food, and medical devices, and their production typically employs blister molding. During the molding process, heated and softened plastic sheets are vacuum-formed and wrapped around the lower mold core. After cooling and solidification, the product is formed. Because blister trays often have multiple independent deep cavities, the product shrinks and tightly adheres to the surface of the lower mold core after cooling, resulting in significant demolding resistance. Therefore, a reliable and efficient demolding mechanism is crucial for ensuring production continuity and product quality.

[0003] Currently, the common demolding method involves setting up an ejection system within the lower mold base, consisting of an ejector plate, ejector pins, and ejector blocks. This system typically relies on external drive devices such as cylinders, hydraulic cylinders, or motors. While this external drive solution is effective, it introduces additional complexity to the overall mold design, increasing manufacturing costs and space requirements. It also necessitates the configuration of corresponding control circuits and power sources, making installation and maintenance relatively inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a mold for producing blister trays, which solves the problem of inconvenient demolding by setting an ejection mechanism that is linked to the mold opening action.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model is a mold for producing blister trays, including a lower mold base and an upper mold base. The lower mold base has a sliding groove, and a horizontal plate is slidably fitted in the sliding groove. A linkage plate is installed on the outer surface of the horizontal plate. A row of ejector rods is installed on the top of the linkage plate, and an ejector block is installed on the top of each ejector rod. A rectangular block is installed on the outer surface of the upper mold base, and a connecting strip is installed at the bottom of the rectangular block. A through hole is opened at the end of the horizontal plate, and the bottom end of the connecting strip passes through the through hole and is fitted with a stop block.

[0007] Furthermore, a row of reserved slots is provided in the lower mold base, and the ejector block is located in the reserved slots.

[0008] Furthermore, a positioning groove is provided inside the lower mold base, which is connected to the slide groove. A positioning rod is vertically installed on the inner wall of the positioning groove, and a through hole for cooperating with the positioning rod is provided on the horizontal plate.

[0009] Furthermore, a spring is fitted onto the positioning rod, with the two ends of the spring connected to the top of the horizontal plate and the inner wall of the positioning groove, respectively.

[0010] Furthermore, a base is installed at the bottom of the lower mold base, and mounting holes are provided at the four corners of the base.

[0011] Furthermore, a gantry plate is installed on the base, and a cylinder is set on the gantry plate. The upper mold base is installed on the output end of the cylinder.

[0012] This utility model has the following beneficial effects:

[0013] This utility model, through the setting of rectangular blocks, connecting strips and stop blocks, directly transforms the mold opening motion into the lifting motion of the ejector block, realizes the automation of the demolding process, simplifies the overall mold structure, reduces manufacturing costs and energy consumption, and ensures the ejection action and mold opening process, avoiding the control complexity and maintenance requirements caused by an additional drive system.

[0014] This invention, through the positioning rod and the through hole on the horizontal plate, ensures that the horizontal plate and the entire ejection system connected to it can only move in the vertical direction, effectively preventing skewing or jamming during the ejection process. The spring provides a continuous restoring force to the horizontal plate, and the spring force can push the horizontal plate and the ejection system to return to their original position, so that the ejection block can be accurately returned to the reserved groove, preparing for the next molding cycle.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the mold;

[0017] Figure 2 This is a schematic diagram of the overall structure of the mold;

[0018] Figure 3 This is a structural diagram of the lower mold base and the horizontal plate;

[0019] Figure 4 This is a schematic diagram of the internal structure of the lower mold base.

[0020] In the diagram: 1. Base; 101. Mounting hole; 2. Lower mold base; 201. Slide groove; 202. Positioning groove; 203. Reserved groove; 3. Upper mold base; 4. Horizontal plate; 401. Through hole; 5. Linkage plate; 6. Ejector rod; 7. Ejector block; 8. Rectangular block; 9. Connecting strip; 10. Abutment block; 11. Positioning rod; 12. Spring; 13. Gantry plate; 14. Cylinder. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a mold for producing blister trays, including a lower mold base 2 and an upper mold base 3. A base 1 is installed at the bottom of the lower mold base 2. Mounting holes 101 are provided at the four corners of the base 1. The mounting holes 101 facilitate the stable installation of the mold onto the working platform of the blister forming equipment. A gantry plate 13 is installed on the base 1. A cylinder 14 is provided on the gantry plate 13. The upper mold base 3 is installed at the output end of the cylinder 14. The cylinder 14 is used to drive the upper mold base 3 to perform vertical opening and closing movements. When closing the mold, the cylinder 14 is activated, pushing the upper mold base 3 to move downward and close with the lower mold base 2.

[0023] The lower mold base 2 has a sliding groove 201 and a row of reserved slots 203. The ejector blocks 7 are located in the reserved slots 203. In the non-ejection state, each ejector block 7 is stored in the reserved slot 203 and will not affect the normal operation of the vacuum forming. A horizontal plate 4 is slidably fitted in the sliding groove 201. A linkage plate 5 is installed on the outer surface of the horizontal plate 4. A row of ejector rods 6 is installed on the top of the linkage plate 5. An ejector block 7 is installed on the top of each ejector rod 6. The top surface of the ejector block 7 is adapted to the inner surface shape of the vacuum forming tray product. A rectangular block 8 is installed on the outer surface of the upper mold base 3. A connecting strip 9 is installed at the bottom of the rectangular block 8. The connecting strip 9 is a high-strength fiber strip. A through hole 401 is opened at the end of the horizontal plate 4, and the bottom end of the connecting strip 9 passes through it. The connecting strip 9 is in a relaxed state when the mold is closed, and the abutment 10 is suspended below the horizontal plate 4. After molding is completed, the cylinder 14 pulls the upper mold base 3 upward to start the mold opening. When the upper mold base 3 is raised to a certain height, the connecting strip 9 is fully tightened, and the abutment 10 at its bottom contacts the bottom of the horizontal plate 4. As the upper mold base 3 continues to rise, the abutment 10 will lift the horizontal plate 4 upward. The horizontal plate 4 overcomes the elastic force of the spring 12 and slides upward along the positioning rod 11. The rise of the horizontal plate 4 is transmitted synchronously to all the ejector rods 6 through the linkage plate 5, thereby pushing all the ejector blocks 7 to move upward, making them protrude from the upper surface of the lower mold base 2, and smoothly lifting the blister tray wrapped on the lower mold core to complete the demolding.

[0024] A positioning groove 202 is provided in the lower mold base 2. The positioning groove 202 is connected to the slide groove 201. A positioning rod 11 is vertically installed on the inner wall of the positioning groove 202. A through hole is provided on the horizontal plate 4 to cooperate with the positioning rod 11. When the horizontal plate 4 is moved by the connecting belt 9, the positioning rod 11 passes through the through hole of the horizontal plate 4 to guide the movement of the horizontal plate 4 and ensure that the horizontal plate 4 moves vertically. A spring 12 is sleeved on the positioning rod 11. The two ends of the spring 12 are respectively connected to the top of the horizontal plate 4 and the inner wall of the positioning groove 202. When the mold is closed, the spring 12 is in a compressed state, pushing the ejector block 7 to retract completely into the reserved groove 203, the mold cavity is closed, and normal vacuum forming is performed.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mold for producing blister trays, comprising a lower mold base (2) and an upper mold base (3), characterized in that: The lower mold base (2) is provided with a sliding groove (201), and a horizontal plate (4) is slidably fitted in the sliding groove (201). A linkage plate (5) is installed on the outer surface of the horizontal plate (4), and a row of ejector rods (6) is installed on the top of the linkage plate (5). An ejector block (7) is installed on the top of each ejector rod (6). A rectangular block (8) is installed on the outer surface of the upper mold base (3). A connecting strip (9) is installed at the bottom of the rectangular block (8). A through hole (401) is opened at the end of the horizontal plate (4). The bottom end of the connecting strip (9) passes through the through hole (401) and is fitted with a stop block (10).

2. The mold for producing a blister tray according to claim 1, characterized in that, A row of reserved slots (203) is provided in the lower mold base (2), and the ejector block (7) is located in the reserved slots (203).

3. The mold for producing a blister tray according to claim 1, characterized in that, The lower mold base (2) is provided with a positioning groove (202), which is connected to the slide groove (201). A positioning rod (11) is vertically installed on the inner wall of the positioning groove (202), and a through hole for cooperating with the positioning rod (11) is provided on the horizontal plate (4).

4. The mold for producing a blister tray according to claim 3, characterized in that, A spring (12) is sleeved on the positioning rod (11), and the two ends of the spring (12) are respectively connected to the top of the horizontal plate (4) and the inner wall of the positioning groove (202).

5. The mold for producing a blister tray according to claim 1, characterized in that, The bottom of the lower mold base (2) is equipped with a base (1), and mounting holes (101) are provided at the four corners of the base (1).

6. The mold for producing a blister tray according to claim 5, characterized in that, A gantry plate (13) is installed on the base (1), and a cylinder (14) is provided on the gantry plate (13). The upper mold base (3) is installed at the output end of the cylinder (14).

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