A quick die change system for a thermoform stretch film packaging machine

By adopting a combination design of cylinder locking and guide rail pressure plate on the packaging machine, the mold can be changed quickly and stably, solving the problems of unstable mold fixing and complicated replacement, thus improving production efficiency and equipment stability.

CN224546574UActive Publication Date: 2026-07-24ZHEJIANG UTIEN PACKAGING MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG UTIEN PACKAGING MACHINERY
Filing Date
2025-09-15
Publication Date
2026-07-24

Smart Images

  • Figure CN224546574U_ABST
    Figure CN224546574U_ABST
Patent Text Reader

Abstract

The utility model relates to packing machine technical field, concretely relates to a kind of quick mould replacement system of thermoforming stretch film packing machine, including sealing top lifting plate, sealing lower mould frame is placed on the sealing top lifting plate, bearing is installed in the both sides of sealing lower mould frame, the top of sealing top lifting plate is installed with the sliding slot backing plate matched with the bearing;Sealing top lifting plate is installed with the drive assembly for driving the lifting and falling of sealing lower mould frame.This utility model is fixed locking to lower mould frame by the mode of air cylinder locking and pushing out, not easy to loosen, can improve the stability of equipment, and can be quickly unlocked, it is convenient to replace, secondly, along with guide rail pressurizing plate quick side pull out, it is convenient to replace mould frame quickly, save time and effort, improve work efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically to a rapid mold changing system for a thermoforming stretch film packaging machine. Background Technology

[0002] Existing packaging machines come with multiple sets of production molds, which are usually fixed using nuts and bolts. With long-term operation, these molds are prone to loosening, affecting the stability of the entire machine. Moreover, changing the molds is a complex and time-consuming process, which reduces production efficiency and increases operating costs.

[0003] Based on the above, this utility model proposes a rapid mold changing system for a thermoforming stretch film packaging machine, which can effectively solve the above problems. Utility Model Content

[0004] This utility model addresses the shortcomings of the existing technology by providing a rapid mold changing system for a thermoforming stretch film packaging machine.

[0005] This utility model is achieved through the following technical solution: A rapid mold changing system for a thermoforming stretch film packaging machine includes a sealing lifting plate, on which a lower sealing mold frame is placed. Bearings are installed on both sides of the lower sealing mold frame, and a sliding groove pad that mates with the bearings is installed on the top of the sealing lifting plate. A drive assembly for driving the lower sealing mold frame to lift and lower is installed on the sealing lifting plate.

[0006] According to the above technical solution, as a further preferred technical solution, the driving component includes a cylinder, a guide rail pressure plate, a bearing seat, and a limiting guide rod. The cylinder is installed at the bottom of the sealing lifting plate; the bearing seat is installed on both sides of the bottom of the sealing lifting plate, and the bearing seat is slidably connected to the limiting guide rod, one end of which is connected to the guide rail pressure plate.

[0007] According to the above technical solution, as a further preferred technical solution, a bearing pressure plate is installed above the guide rail pressure plate.

[0008] According to the above technical solution, as a further preferred technical solution, a lower mold frame handle is installed on one side of the sealing lower mold frame, and a positioning block is installed on the other side.

[0009] According to the above technical solution, as a further preferred technical solution, the bearing housing is a linear bearing housing.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. The lower mold frame is fixed and locked by a cylinder locking ejection method, which is not easy to loosen, improves the stability of the equipment, and can be quickly unlocked for easy replacement.

[0011] 2. The mold frame can be quickly pulled out by the pressure plate along the guide rail, which facilitates quick replacement, saves time and effort, and improves work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a side view of the structure of this utility model.

[0013] In the diagram: 100, sealing lifting plate; 110, sealing lower mold frame; 120, guide rail pressure plate; 121, bearing pressure plate; 122, limit guide rod; 123, cylinder; 124, bearing seat; 125, sliding groove pad; 126, bearing; 130, lower mold frame handle; 140, positioning block. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0015] Combination Figures 1 to 3 As shown, a rapid mold changing system for a thermoforming stretch film packaging machine includes a sealing lifting plate 100, on which a sealing lower mold frame 110 is placed. Bearings 126 are installed on both sides of the sealing lower mold frame 110, and a sliding groove pad 125 that mates with the bearings 126 is installed on the top of the sealing lifting plate 100. A drive assembly for driving the sealing lower mold frame 110 to lift and lower is installed on the sealing lifting plate 100.

[0016] Furthermore, in another embodiment, the drive assembly includes a cylinder 123, a guide rail pressure plate 120, a bearing seat 124, and a limiting guide rod 122. The cylinder 123 is installed at the bottom of the sealing lifting plate 100; the bearing seat 124 is installed on both sides of the bottom of the sealing lifting plate 100, and the bearing seat 124 is slidably connected to the limiting guide rod 122. One end of the limiting guide rod 122 is connected to the guide rail pressure plate 120.

[0017] Furthermore, in another embodiment, a bearing pressure plate 121 is installed above the guide rail pressure plate 120.

[0018] Furthermore, in another embodiment, a lower mold frame handle 130 is installed on one side of the sealing lower mold frame 110, and a positioning block 140 is installed on the other side.

[0019] Furthermore, in another embodiment, the bearing housing 124 is a linear bearing housing.

[0020] The working principle of one embodiment of this utility model is as follows: When it is necessary to replace or disassemble the mold, the cylinder 123 pushes upward, and the guide rail pressure plates 120 on both sides are raised and limited by the limit guide rod 122. At the same time, the sealing lower mold frame 110 is raised as a whole, and the bearings 126 on both sides are higher than the slide groove pad 125. The sealing lower mold frame 110 can be manually pulled out for disassembly by the lower mold frame handle 130. During installation, the sealing lower module 110 is positioned by the positioning block 140, the cylinder 123 retracts, and the guide rail pressure plates 120 on both sides are reset and locked. The sealing lower mold frame 110 is then installed.

[0021] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the rapid mold changing system of the thermoforming stretch film packaging machine of this utility model, and can produce the positive effects described in this utility model.

[0022] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0023] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A rapid mold changing system for a thermoforming stretch film packaging machine, characterized in that: The device includes a sealing lifting plate (100), on which a sealing lower mold frame (110) is placed. Bearings (126) are installed on both sides of the sealing lower mold frame (110), and a sliding groove pad (125) that cooperates with the bearings (126) is installed on the top of the sealing lifting plate (100). A drive assembly for driving the sealing lower mold frame (110) to lift and fall is installed on the sealing lifting plate (100).

2. The rapid mold changing system for a thermoforming stretch film packaging machine according to claim 1, characterized in that: The drive assembly includes a cylinder (123), a guide rail pressure plate (120), a bearing seat (124), and a limiting guide rod (122). The cylinder (123) is installed at the bottom of the sealing lifting plate (100). The bearing seat (124) is installed on both sides of the bottom of the sealing lifting plate (100). The bearing seat (124) is slidably connected to the limiting guide rod (122). One end of the limiting guide rod (122) is connected to the guide rail pressure plate (120).

3. The rapid mold changing system for a thermoforming stretch film packaging machine according to claim 2, characterized in that: A bearing pressure plate (121) is installed above the guide rail pressure plate (120).

4. The rapid mold changing system for a thermoforming stretch film packaging machine according to claim 1, characterized in that: The sealing lower mold frame (110) is equipped with a lower mold frame handle (130) on one side and a positioning block (140) on the other side.

5. The rapid mold changing system for a thermoforming stretch film packaging machine according to claim 2, characterized in that: The bearing housing (124) is a linear bearing housing.