An adjustable-size blister pack production mold

By introducing a motor-driven adjustment mechanism into the blister mold, the automatic adjustment of the blister forming cavity is realized, which solves the problems of operation complexity and time consumption caused by fixed mold size, and improves production efficiency and product quality.

CN224426475UActive Publication Date: 2026-06-30SHANGHAI HONGLONG PLASTIC PACKAGING PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HONGLONG PLASTIC PACKAGING PROD CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing blister pack molds have fixed male mold dimensions, which means that when making commonly used rectangular blister packs, it is necessary to frequently change different mold bases, which is complicated, time-consuming and labor-intensive.

Method used

An adjustable-size blister pack production mold was designed. By setting an adjustment mechanism in the mounting base, the sliding block is moved laterally by a motor-driven screw, so that the two sets of movable seats can move synchronously in opposite directions, thereby adjusting the internal space of the blister pack forming cavity without the need to replace the mold base.

Benefits of technology

It enables rapid and precise adjustment of the blister pack forming cavity size, reduces operational complexity and time consumption, improves production efficiency and product qualification rate, and reduces mold replacement costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an adjustable-size blister pack production mold, comprising: a splicing plate, an upper mounting base fixedly connected to the splicing plate, and two sets of opposing movable seats on the upper part of the mounting base, with sealing plates on both sides of each movable seat. The two sets of sealing plates are fixedly connected to the two sets of movable seats, forming a blister pack forming cavity between the two sets of movable seats and the sealing plates. This utility model also includes a connecting block fixedly connected to the sliding block and the movable seats on the upper part of a sliding block. A motor drives a screw to rotate, allowing the threaded sliding block to move laterally on its surface, thereby causing the two sets of movable blocks to move synchronously in opposite directions. This adjusts the internal space of the blister pack forming cavity without replacing the mold base. However, the upper forming plate needs to be replaced with a matching model.
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Description

Technical Field

[0001] This utility model relates to the field of blister pack production mold technology, and more specifically to an adjustable-size blister pack production mold. Background Technology

[0002] Blister molds are molds specifically designed for manufacturing blister packs, which are widely used in packaging, protection, and display applications. Blister molds are mainly divided into two types: positive molds and negative molds. Their structural design must be determined based on the shape, size, and material requirements of the blister product. Positive molds are typically used to form the inner cavity of the blister pack, while negative molds are used to form the outer surface.

[0003] Existing blister packaging molds mostly use male molds of fixed dimensions. When producing commonly used rectangular blister packs, it is necessary to change to different models of male mold bases, which is complicated, time-consuming, and labor-intensive. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable-size blister pack production mold, which solves the problem that the male molds of existing blister pack molds are mostly fixed in size, and different models of male mold bases need to be replaced when making commonly used rectangular blister packs, which is complicated, time-consuming and labor-intensive.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-size blister pack production mold, comprising: a splicing plate, an mounting base provided on the upper part of the splicing plate and fixedly connected to the splicing plate, two sets of oppositely arranged movable seats provided on the upper part of the mounting base and sealing plates provided on both sides of the movable seats, the two sets of sealing plates being fixedly connected to the two sets of movable seats respectively, forming a blister packing cavity between the two sets of movable seats and the sealing plates, the blister packing cavity being rectangular in structure, an adjustment mechanism provided inside the mounting base, and two sets of adjustment mechanisms being provided and symmetrically mirrored, the adjustment mechanism including a sliding groove provided inside the mounting base, a screw provided inside the sliding groove and extending to the outside of the mounting base and mounting a motor thereon, a sliding block provided on the surface of the screw and threadedly connected to the screw, a connecting block provided on the upper part of the sliding block and fixedly connected to the sliding block and the movable seat.

[0006] In a preferred embodiment of this utility model, the surface of the mounting base is provided with a scale that is fixedly connected.

[0007] In a preferred embodiment of this utility model, the connecting block is arranged in an L-shaped structure.

[0008] In a preferred embodiment of this utility model, the splicing plate has a fixing hole inside, and the mounting plate is fixed to the machine base by bolts passing through the fixing hole.

[0009] In a preferred embodiment of the present invention, the splicing plate is provided with a splicing block on one side and a corresponding splicing groove on the other side.

[0010] In a preferred embodiment of this utility model, the rectangular corners of the blister forming cavity are set with arc-shaped angles.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention features a mounting base fixedly connected to the splicing plate on its upper part. Two sets of opposing movable seats are located on the upper part of the mounting base, with sealing plates on both sides of each movable seat. The two sets of sealing plates are fixedly connected to the two sets of movable seats, forming a blister forming cavity with a rectangular structure. An adjustment mechanism is located inside the mounting base, with two sets arranged symmetrically in a mirror image. Each adjustment mechanism includes a sliding groove inside the mounting base, a screw extending from the outside of the mounting base and fitted with a motor, and a sliding block threadedly connected to the screw. A connecting block is located above the sliding block and fixedly connected to both the sliding block and the movable seat. The motor drives the screw to rotate, allowing the threaded sliding block to move laterally on its surface, thereby causing the two sets of movable blocks to move synchronously in opposite directions, thus adjusting the internal space of the blister forming cavity. Adjustment can be completed without replacing the mold base. However, the upper forming plate needs to be replaced with a matching model. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 This is a side view of the structure of this utility model.

[0016] In the diagram: 1. Splicing plate; 2. Fixing hole; 3. Splicing block; 4. Splicing groove; 5. Mounting base; 6. Adjustment mechanism; 7. Movable base; 8. Sealing plate; 9. Sliding groove; 10. Screw; 11. Click; 12. Sliding block; 13. Connecting block; 14. Bubble forming cavity; 15. Arc angle; 16. Scale. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3 This utility model provides a technical solution: an adjustable-size blister pack production mold, comprising: a splicing plate 1, wherein a mounting base 5 is provided on the upper part of the splicing plate 1 and is fixedly connected to the splicing plate 1; two sets of oppositely arranged movable seats 7 are provided on the upper part of the mounting base 5, and sealing plates 8 are respectively provided on both sides of the movable seats 7; the two sets of sealing plates 8 are respectively fixedly connected to the two sets of movable seats 7; a blister pack forming cavity 14 is formed between the two sets of movable seats 7 and the sealing plates 8, and the blister pack forming cavity 14 is arranged in a rectangular structure; and an adjustment mechanism is provided inside the mounting base 5. The adjustment mechanism 6 has two sets arranged symmetrically in a mirror image. Each adjustment mechanism 6 includes a sliding groove 9 inside the mounting base 5. A screw 10 is disposed inside the sliding groove 9 and extends to the outside of the mounting base 5, where a motor 11 is mounted. A sliding block 12 is disposed on the surface of the screw 10, and the sliding block 12 is threadedly connected to the screw 10. A connecting block 13 is disposed on the upper part of the sliding block 12, and the connecting block 13 is fixedly connected to the sliding block 12 and the movable seat 7. A mounting base 5 is disposed on the upper part of the splicing plate 1, and the mounting base 5 is fixedly connected to the splicing plate 1. The mounting base 5 has two sets of opposing movable seats 7 on its upper part, with sealing plates 8 on both sides of each movable seat 7. The two sets of sealing plates 8 are fixedly connected to the two sets of movable seats 7, forming a bubble-forming cavity 14 between the two sets of movable seats 7 and the sealing plates 8. The bubble-forming cavity 14 has a rectangular structure. An adjustment mechanism 6 is provided inside the mounting base 5, with two sets of adjustment mechanisms arranged symmetrically in mirror image. The adjustment mechanism 6 includes a sliding groove 9 inside the mounting base 5, and a screw 10 inside the sliding groove 9, extending to the outside of the mounting base 5. A motor 11 is installed, and a sliding block 12 is provided on the surface of the screw 10 and is threadedly connected to the screw 10. A connecting block 13 is provided on the upper part of the sliding block 12 and is fixedly connected to the sliding block 12 and the movable seat 7. The motor 11 drives the screw 10 to rotate, so that the sliding block 12 threadedly connected to it can move laterally on its surface, thereby driving the two sets of movable blocks to move synchronously in opposite directions, thereby adjusting the internal space of the blister forming cavity 14. The adjustment can be completed without changing the mold base. At the same time, the forming plate on its upper part needs to be replaced with a matching model.

[0019] Further improvements, such as Figure 2As shown: The surface of the mounting base 5 is provided with a scale 16 fixedly connected. The scale 16 allows the operator to intuitively see the specific values ​​to be adjusted when adjusting the size of the blister forming cavity 14, thereby improving the accuracy and efficiency of the adjustment and avoiding the problem of unqualified blister products due to inaccurate size adjustment.

[0020] Further improvements, such as Figure 3 As shown: The connecting block 13 is arranged in an L-shape. The L-shaped connecting block 13 can more stably connect the sliding block 12 and the movable seat 7, thereby enhancing the stability of the mold structure.

[0021] Further improvements, such as Figure 1 As shown: The splicing plate 1 has a fixing hole 2 inside, and the mounting plate is fixed to the machine base by bolts passing through the fixing hole 2. The mold can be firmly installed on the machine base, avoiding deformation or inaccurate size of the blister product due to mold shaking or displacement during the production process.

[0022] Further improvements, such as Figure 1 As shown: One side of the splicing plate 1 is provided with splicing block 3 and the other side is provided with corresponding splicing groove 4. Multiple molds can be easily spliced ​​together to meet the production needs of blister packs of different sizes or shapes.

[0023] Further improvements, such as Figure 2 As shown: The rectangular corners of the blister molding cavity 14 are set with arc angles 15. The arc angle 15 design not only makes the blister product more beautiful, but also reduces the damage to the blister during the demolding process.

[0024] Furthermore, the innovative aspects of this solution will be explained.

[0025] Adjustable forming cavity design: The motor drives the screw to move the sliding block laterally, so that the two sets of movable seats move synchronously in opposite directions, thereby adjusting the internal space of the blister forming cavity and adapting to different size requirements without changing the mold base.

[0026] Precise scale adjustment: The mounting base surface is equipped with a scale, which allows for intuitive reading of the molding cavity size adjustment value, improving adjustment accuracy.

[0027] Structural optimization design:

[0028] The L-shaped connecting block enhances the stability of the connection between the sliding block and the movable seat.

[0029] The splicing blocks and splicing grooves of the splicing panel support multiple mold combinations, expanding production flexibility.

[0030] The rectangular corners of the molding cavity are designed with rounded corners to reduce damage to the blister pack during demolding.

[0031] Specifically, a comparison of relevant test data and practical application data for this solution.

[0032]

[0033] Data Description

[0034] Size adjustment time: Traditional molds require manual disassembly, replacement of mold base and calibration. This utility model realizes automatic adjustment by driving the screw with a motor and accurately positioning with a scale, which greatly shortens the adjustment time.

[0035] Production efficiency: After reducing the time spent on size adjustment, the idle time of the equipment is shortened, and the hourly production capacity is increased by 15 pieces. Based on an 8-hour workday, an average of 120 more pieces are produced per day.

[0036] Product qualification rate: Traditional molds are prone to blister size deviation due to mold base replacement errors. This utility model reduces the defect rate from 8% to 4% through precise scale adjustment and stable structural design.

[0037] Mold replacement cost: Traditional mold replacement requires purchasing a new mold base to change to a different size mold base. This utility model only requires replacing the matching forming plate (costing about 20 yuan / piece), which significantly reduces the average annual usage cost.

[0038] Data Validity Statement

[0039] The data is based on simulated production tests, with the test sample consisting of 100 size adjustment operations and 8 hours of continuous production operation.

[0040] Production efficiency and pass rate data were verified by three sets of parallel experiments, with the error range controlled within ±2%.

[0041] Working principle: The mold is fixed to the machine base through the fixing holes 2 and bolts on the splicing plate 1 to ensure that the mold is stable and does not move. According to the production requirements, a suitable forming plate is selected and installed on the mold. Check whether the adjustment mechanism 6, such as the motor 11, screw 10, and sliding block 12, is intact to ensure that the adjustment process is smooth. Adjust the size of the blister forming cavity 14, start the motor 11, and drive the screw 10 to rotate. When the screw 10 rotates, the sliding block 12, which is threaded to it, moves laterally in the sliding groove 9. The sliding block 12 drives the movable seat 7 to move synchronously in opposite directions through the connecting block 13, thereby adjusting the internal space of the blister forming cavity 14. Observe the scale 16. When the size of the blister forming cavity 14 reaches the required size, stop the motor 11 and start the blister production. The heated plastic sheet is then placed on the machine. The material is placed into the mold, covering the blister forming cavity 14. The vacuum forming machine is started, and the plastic sheet is adsorbed onto the mold by negative pressure to form a blister product. After the blister product cools, the mold is opened and the blister product is removed. The mold is driven by the screw 10 to rotate via the motor 11, which enables rapid adjustment of the size of the blister forming cavity 14, improving production efficiency. The scale 16 ensures the accuracy of adjustment and avoids unqualified blister products due to inaccurate dimensions. The L-shaped connecting block 13 enhances the stability of the mold and improves its service life. The design of the splicing block 3 and splicing groove 4 makes the mold easy to splice and replace, meeting different production needs. The arc angle 15 makes the blister product more beautiful and reduces damage during demolding.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0044] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An adjustable-size blister pack production mold, characterized in that: include: A splicing plate (1) is provided with a mounting base (5) on its upper part, and the mounting base (5) is fixedly connected to the splicing plate (1). Two sets of opposing movable seats (7) are provided on the upper part of the mounting base (5), and sealing plates (8) are provided on both sides of the movable seats (7). The two sets of sealing plates (8) are fixedly connected to the two sets of movable seats (7). A blister forming cavity (14) is formed between the two sets of movable seats (7) and the sealing plates (8), and the blister forming cavity (14) is rectangular. An adjustment mechanism (6) is provided inside the mounting base (5). The adjustment mechanism (6) is provided in two sets and is arranged symmetrically in mirror image. The adjustment mechanism (6) includes a sliding groove (9) provided inside the mounting base (5). A screw (10) is provided inside the sliding groove (9) and the screw (10) extends to the outside of the mounting base (5) and is equipped with a motor (11). A sliding block (12) is provided on the surface of the screw (10) and the sliding block (12) is threadedly connected to the screw (10). A connecting block (13) is provided on the upper part of the sliding block (12) and the connecting block (13) is fixedly connected to the sliding block (12) and the movable seat (7).

2. The adjustable-size blister pack production mold according to claim 1, characterized in that: The surface of the mounting base (5) is provided with a scale (16) that is fixedly connected.

3. The adjustable-size blister pack production mold according to claim 1, characterized in that: The connecting block (13) is arranged in an L-shape.

4. The adjustable-size blister pack production mold according to claim 1, characterized in that: The splicing plate (1) has a fixing hole (2) inside, and the mounting plate is fixed to the machine base by bolts passing through the fixing hole (2).

5. The adjustable-size blister pack production mold according to claim 1, characterized in that: The splicing plate (1) has a splicing block (3) on one side and a corresponding splicing groove (4) on the other side.

6. The adjustable-size blister pack production mold according to claim 1, characterized in that: The rectangular corners of the blister forming cavity (14) are set with arc-shaped corners (15).