A rapid change die apparatus
The mold device, with its overall replacement and buffer design, solves the problems of low efficiency and poor safety in traditional mold replacement, enabling rapid replacement and safe mold operation, and adapting to diverse product needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUCHENG MATSUMOTO FOOD PACKAGING MACHINERY CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional food packaging molds are inefficient to replace, and frequent disassembly leads to severe mechanical wear, increasing equipment maintenance costs and posing personnel safety risks.
The mold replacement device adopts an overall replacement method, combined with a buffer spring design. The lower mold is lifted by a cylinder to achieve rapid mold replacement and reduce collisions. The design includes a buffer structure between the upper and lower molds to reduce wear and safety risks.
It improves mold replacement efficiency, extends mold life, reduces mechanical wear and personnel injury risks, and adapts to diverse product needs.
Smart Images

Figure CN224489734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food packaging mold manufacturing, specifically a device for quickly changing food packaging molds. Background Technology
[0002] In the industrial manufacturing sector, molds are key tooling equipment supporting core processes such as food packaging sealing, film forming, and food shaping, used to precisely manufacture various required products. Modern production is increasingly trending towards product diversification and small-batch flexible manufacturing models. The traditional configuration of "one machine with one mold" has become limited, making it difficult to efficiently meet the diverse needs of product forms. A particularly prominent problem is the mold changeover process: frequent mold changes directly slow down the overall processing cycle, becoming a bottleneck affecting production efficiency. Even more concerning is the significantly increased risk of collisions between equipment components during changeover operations, which exacerbates mechanical wear on critical mechanisms, shortens equipment lifespan, and increases maintenance costs.
[0003] In the current process of replacing food packaging molds, the process often involves disassembling the molds into smaller parts from the inside and then reassembling them. This is inefficient, exacerbates mechanical wear on key components, and the confined internal space makes disassembly inconvenient for personnel, which can easily lead to accidental injuries. Summary of the Invention
[0004] The purpose of this utility model is to provide a device for quickly replacing food packaging molds. When replacing the mold, the device adopts an overall replacement method, supplemented by an excellent disassembly device design, which has good operability, can reduce mold wear, is fast and effective, expands the mold space, and reduces accidental injuries caused by mold replacement.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A device for quickly changing food packaging molds includes an upper base, an upper mold fixing shaft, an upper mold fixing plate, an upper mold middle plate, an upper mold fixing shaft base, an upper mold guide shaft seat, an upper mold compression spring, an upper mold compression spring guide shaft, a pad on the lower upper mold plate, a cutting blade, a cutting blade guide shaft, a heat-conducting layer, an upper mold lower plate, a lower pad on the upper mold lower plate, a heating plate, a lower mold support plate, a lower mold frame, a lower mold frame fixing seat, a lower mold support plate guide shaft seat, a guide shaft lower support plate, a lower mold support plate guide shaft, and a lower mold. The lower mold is fixed to the lower mold frame by bolts. The heating plate and cutter are fixed to the lower plate of the upper mold by the cutter guide shaft and can move up and down along the cutter guide shaft. The lower pad of the lower plate of the upper mold serves as a limit for the up and down movement of the heating plate and cutter. The lower plate of the upper mold is fixed to the upper base by the upper mold fixing shaft. The upper base is equipped with a buffer spring and an upper mold compression spring guide shaft, which can buffer the mold when it moves up and down. The mold fixing shaft passes through the upper mold fixing shaft base into the upper base and the upper mold fixing plate. The through hole size of the upper base is larger than the diameter of the mold fixing shaft, and the through hole size of the upper mold fixing plate is equal to the mold fixing shaft size. The mold fixing shaft can adjust the overall mold position in four directions.
[0007] As a further embodiment of this utility model: one end of the guide shaft of the lower mold support plate is fixed to the lower support plate of the guide shaft by bolts, and the other end is fixed to the lower mold support plate by bolts.
[0008] As a further embodiment of this utility model, the lower mold is fixed to the lower mold frame by bolts.
[0009] As a further embodiment of this utility model: the upper mold includes an upper mold middle plate, an upper mold fixing shaft base, an upper mold guide shaft seat, an upper mold compression spring, an upper mold compression spring guide shaft, a pad on the lower plate of the upper mold, a cutting blade, a cutting blade guide shaft, a heat-conducting layer, an upper mold lower plate, a lower pad on the lower plate of the upper mold, and an electric heating plate, which are fixed to the upper base by nuts through the upper mold fixing shaft.
[0010] As a further embodiment of this utility model: the lower mold frame fixing seat is fixed to the lower mold frame by bolts, and the lower mold frame fixing seat is connected to a cylinder to lift or lower the lower mold.
[0011] As a further embodiment of this utility model: the upper mold compression spring guide shaft is fixed to the upper mold middle plate by bolts, the upper mold compression spring passes through the upper mold compression spring guide shaft and the top of the upper mold compression spring contacts the upper base.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the quick mold replacement device adopts the overall replacement method when replacing the mold, supplemented by an excellent disassembly device design. At the same time, the buffer spring can reduce the impact of the collision between the upper mold and the lower mold, which has a good buffering effect, can reduce mold wear, effectively extend service life, and has good operability. The lifting and disassembly of the lower mold can reduce accidental injuries to personnel caused by mold replacement. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is an enlarged schematic diagram of the lower mold according to this utility model;
[0015] Figure 3 This is an enlarged schematic diagram of the buffer component according to the present invention;
[0016] Figure 4 This is a schematic diagram of the upper base according to the present utility model;
[0017] In the diagram: 1 Upper base, 2 Upper mold fixing shaft, 3 Upper mold fixing plate, 4 Upper mold middle plate, 5 Upper mold fixing shaft base, 6 Upper mold guide shaft seat, 7 Upper mold compression spring, 8 Upper mold compression spring guide shaft, 9 Upper mold lower plate pad, 10 Cutting knife, 11 Cutting knife guide shaft, 12 Heat-conducting layer, 13 Upper mold lower plate, 14 Upper mold lower plate lower pad, 15 Heating plate, 16 Lower mold support plate, 17 Lower mold frame, 18 Lower mold frame fixing seat, 19 Lower mold support plate guide shaft seat, 20 Guide shaft lower support plate, 21 Lower mold support plate guide shaft, 22 Lower mold. Detailed Implementation
[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0019] like Figure 1As shown, this utility model provides a device for quickly changing food packaging molds, comprising an upper base (1), an upper mold fixing shaft (2), an upper mold fixing plate (3), an upper mold middle plate (4), an upper mold fixing shaft base (5), an upper mold guide shaft seat (6), an upper mold compression spring (7), an upper mold compression spring guide shaft (8), a pad block on the lower plate of the upper mold (9), a cutting blade (10), a cutting blade guide shaft (11), a heat-conducting layer (12), an upper mold lower plate (13), a pad block on the lower plate of the upper mold (14), a heating plate (15), a lower mold support plate (16), a lower mold frame (17), a lower mold frame fixing seat (18), a lower mold support plate guide shaft seat (19), a guide shaft lower support plate (20), a lower mold support plate guide shaft (21), and a lower mold (22). The lower mold frame fixing seat (18) is fixed to the lower mold frame (17) by bolts and is raised and lowered by a cylinder lifting structure. The lower mold support plate guide shaft (21) is fixed to the guide shaft lower support plate (20) and the lower mold support plate (16) by bolts. The lower mold support plate guide shaft (21) passes through the lower mold support plate guide shaft seat (19) and can move up and down relative to the lower mold frame (17). The lower mold (22) is fixed to the lower mold frame (17) by a few bolts. The entire lower mold part can move up and down independently by a cylinder lifting mechanism. The lower mold (22) can be separated from the lower mold frame (17) by removing a few bolts and can be taken out as a whole after separation.
[0020] The heating plate (15) and the cutting blade (10) are fixed to the lower plate of the upper mold (13) via the cutting blade guide shaft (11) and can move up and down along the cutting blade guide shaft (11). The pad (9) on the lower plate of the upper mold serves as a limit for the up and down movement of the heating plate (15) and the cutting blade (10). The lower plate of the upper mold (13) is fixed to the upper base (1) via the upper mold fixing shaft (2). The upper base (1) is equipped with an upper mold compression spring (7) and an upper mold compression spring guide shaft (8) to provide buffering when the mold moves up and down. The upper mold fixing shaft (2) passes through the upper mold fixing shaft base (5) and enters the upper base (1) and the upper mold fixing plate (3). The upper base (1) is larger than the upper mold fixing shaft (2). The through hole size of the upper mold fixing plate (3) is equal to the size of the upper mold fixing shaft (2). The upper mold fixing shaft (2) can adjust the overall mold position in four directions. The upper mold fixing plate (3) can be locked with bolts to finally determine the mold position. After the mold position is determined, even if the mold is changed multiple times, the mold position will not change. After the lower mold (22) is lifted, it lifts the upper mold. Only a few nuts on the upper mold fixing shaft (2) need to be removed to separate the entire upper mold. After the lower mold (22) is lowered, the upper mold can be taken out as a whole. The upper mold compression spring (7) acts as a buffer. When the lower mold (22) is lifted, the upper mold compression spring (7) is compressed and plays a buffering role, thereby reducing the direct collision between the lower mold (22) and the heating plate (15).
[0021] In addition, in order to adapt to products of different shapes, the device for quick-change food packaging molds of this utility model can be made into a series of products of different models to meet the needs of quick mold change for products of various shapes.
[0022] As can be seen from the above description, the above-described embodiments of this utility model mainly achieve the following technical effects:
[0023] 1. The cumbersome internal disassembly process has been reduced, and the overall replacement method has been adopted, which has improved the efficiency of mold replacement;
[0024] 2. The buffer structure reduces the risk of collisions between molds and extends the service life of the molds;
[0025] 3. It can be replaced from the outside, has a large operating space, and is equipped with mechanical lifting and lowering, which reduces the workload of personnel and reduces the occurrence of accidental injuries.
Claims
1. A quick-change mold device, characterized in that... Includes an upper base (1), an upper mold fixing shaft (2), an upper mold fixing plate (3), an upper mold middle plate (4), an upper mold fixing shaft base (5), an upper mold guide shaft seat (6), an upper mold compression spring (7), an upper mold compression spring guide shaft (8), a pad on the lower plate of the upper mold (9), a cutting blade (10), a cutting blade guide shaft (11), a heat-conducting layer (12), an upper mold lower plate (13), an upper mold lower plate lower pad (14), a heating plate (15), a lower mold support plate (16), a lower mold frame (17), a lower mold frame fixing seat (18), and a lower mold support. The system includes a guide shaft seat (19), a guide shaft lower support plate (20), a lower mold support plate guide shaft (21), and a lower mold (22). The lower mold frame fixing seat (18) is fixed to the lower mold frame (17) by bolts, and the lower mold frame fixing seat (18) is connected to a cylinder to lift or lower the lower mold. The lower mold support plate guide shaft (21) is fixed to the guide shaft lower support plate (20) and the lower mold support plate (16) by bolts. The lower mold support plate guide shaft (21) passes through the lower mold support plate guide shaft seat (19), and the lower mold support plate guide shaft (21) is relative to the lower mold. The frame (17) moves up and down. The lower mold (22) is fixed to the lower mold frame (17) by bolts. The heating plate (15) and the cutting blade (10) are fixed to the lower plate of the upper mold (13) by the cutting blade guide shaft (11) and can move up and down along the cutting blade guide shaft (11). The lower plate of the upper mold (13) is fixed to the upper base (1) by the upper mold fixing shaft (2). The upper base (1) has an upper mold compression spring (7) and an upper mold compression spring guide shaft (8). The upper mold fixing shaft (2) passes through the upper mold fixing shaft base (5) into the upper base. The upper mold base (1) and the upper mold fixing plate (3) are provided. The through hole size of the upper base (1) is larger than the diameter of the upper mold fixing shaft (2). The through hole size of the upper mold fixing plate (3) is equal to the size of the upper mold fixing shaft (2). The upper mold compression spring (7) serves as a buffer and can be compressed and buffered when the lower mold (22) is lifted. The upper mold compression spring guide shaft (8) is fixed to the upper mold middle plate (4) by bolts. The upper mold compression spring (7) passes through the upper mold compression spring guide shaft (8) and the top of the upper mold compression spring (7) contacts the upper base (1).