Hot melt press die of degradable express bag sealing machine

Abstract

This utility model discloses a hot-melt pressing mold for a biodegradable express bag sealing machine, relating to the field of sealing machine technology. The utility model includes a support frame, an upper pressing plate on one side of the support frame, and a lower pressing plate at the bottom of the upper pressing plate. A heat preservation mechanism is provided on one side of the support frame, comprising a fixed heat preservation shell respectively disposed on the surfaces of the upper and lower pressing plates, a movable heat preservation shell disposed on one side of the fixed heat preservation shell, and an adjustment mechanism on one side of the upper pressing plate. By incorporating the heat preservation mechanism, this utility model can seal and preserve the upper and lower pressing plates after hot-melt pressing, effectively reducing heat loss, lowering energy consumption from repeated heating, and saving production costs. The design of the adjustment mechanism allows for flexible adjustment of the distance between the upper and lower pressing plates, accommodating biodegradable express bags of different thicknesses, improving the versatility of the equipment and sealing quality.

Description

Technical Field

[0001] This utility model belongs to the field of sealing machine technology, and in particular relates to the hot melt pressing mold of a biodegradable express bag sealing machine. Background Technology

[0002] With the rapid development of e-commerce, the demand for express packaging has increased dramatically, and biodegradable express bags have gradually become the industry mainstream due to their environmentally friendly characteristics. In the production and use of express bags, the sealing process is crucial. Hot melt sealing technology is widely used due to its good sealing performance and high efficiency, and hot melt sealing molds are used during the hot melt sealing process.

[0003] Existing hot-melt sealing machines for courier bags mainly use upper and lower heating and pressing plates to heat-melt and seal the bag opening. The working principle involves heating the plates to a set temperature, melting the biodegradable plastic material, and then applying pressure to seal the bag opening. Since the upper and lower pressing plates are usually exposed to the environment after each sealing operation, heat dissipates rapidly. When sealing again, the pressing plates need to be reheated to the operating temperature, resulting in additional energy consumption and increased production costs. Furthermore, the spacing between the upper and lower pressing plates in the hot-melt sealing mold is often fixed, making it difficult to adapt to courier bags of varying thicknesses.

[0004] To address these issues, we offer a biodegradable express bag sealing machine with a hot melt pressing mold. Utility Model Content

[0005] The purpose of this invention is to provide a hot melt pressing mold for a biodegradable express bag sealing machine. Through the cooperation of the heat preservation mechanism and the adjustment mechanism, the problems of high energy consumption and non-adjustable spacing of the hot melt pressing mold in the prior art are solved.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a hot melt pressing mold for a biodegradable express bag sealing machine, comprising a support frame, an upper pressing plate on one side of the support frame, and a lower pressing plate at the bottom of the upper pressing plate; a heat preservation mechanism on one side of the support frame, the heat preservation mechanism comprising a fixed heat preservation shell respectively disposed on the surfaces of the upper pressing plate and the lower pressing plate, and a movable heat preservation shell disposed on one side of the fixed heat preservation shell; an adjustment mechanism on one side of the upper pressing plate, the adjustment mechanism comprising a threaded rod disposed on one side of the upper pressing plate, and a threaded sleeve threadedly connected to the surface of the threaded rod.

[0008] The present invention is further configured such that the heat preservation mechanism includes a support rod fixedly connected to one side of the fixed heat preservation shell, a fixing plate fixedly connected to one side of the support rod, and a first cylinder fixedly connected to one side of the fixing plate.

[0009] The present invention is further configured such that the adjustment mechanism includes a fixed frame fixedly connected to the top of the bracket, a motor fixedly connected to the bottom of the fixed frame, a pointer fixedly connected to one side of the threaded sleeve, and a scale plate fixedly connected to one side of the bracket.

[0010] The present invention is further configured such that a support plate is rotatably connected to the bottom end of the threaded rod, and one side of the support plate is fixedly connected to the bracket.

[0011] The present invention is further configured such that a slider is fixedly connected to one side of the threaded sleeve, and the slider is slidably connected to the bracket.

[0012] The present invention is further configured such that the fixed insulation shell and the movable insulation shell are in contact, and a controller is fixedly connected to one side of the bracket.

[0013] The present invention is further configured such that a second cylinder is fixedly connected to the top of the upper pressing plate and the bottom of the lower pressing plate, and a heating plate is fixedly connected to the bottom of the upper pressing plate and the top of the lower pressing plate.

[0014] The present invention has the following beneficial effects.

[0015] 1. By setting up a heat preservation mechanism, this utility model can seal and preserve the upper and lower pressing plates after hot melt pressing, effectively reducing heat loss, reducing the energy consumption of repeated heating, and saving production costs. The design of the adjustment mechanism allows the distance between the upper and lower pressing plates to be flexibly adjusted, which can adapt to biodegradable express bags of different thicknesses, improving the versatility of the equipment and the sealing quality.

[0016] 2. This utility model achieves precise control by using a pointer and scale plate to indicate the spacing adjustment value, combined with motor drive. The operation is simple and intuitive, improving work efficiency. Through the sliding connection between the slider and the groove, and the fixed support of the support plate, the stability and reliability of the adjustment process are ensured, extending the service life of the equipment. The controller coordinates the actions of the cylinder and the motor to realize the automated process of opening and closing the insulation shell, adjusting the spacing of the pressing plate, and heat sealing, reducing manual intervention and improving production efficiency.

[0017] 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

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional view of the hot melt pressing mold for a biodegradable express bag sealing machine.

[0020] Figure 2 This is a cross-sectional view of the support frame in the hot melt pressing mold of a biodegradable express bag sealing machine.

[0021] Figure 3 This is a rear view of a portion of the hot melt sealing mold in a biodegradable express bag sealing machine.

[0022] Figure 4 This is a cross-sectional view of the heat-insulating shell fixed in the hot melt pressing mold of a biodegradable express bag sealing machine.

[0023] Figure 5 This is a cross-sectional view of the upper pressing plate in the hot melt pressing mold of a biodegradable express bag sealing machine.

[0024] In the attached diagram: 1. Bracket; 2. Upper pressing plate; 3. Lower pressing plate; 4. Fixed insulation shell; 5. Movable insulation shell; 6. Threaded rod; 7. Threaded sleeve; 8. Support rod; 9. Fixing plate; 10. First cylinder; 11. Fixing frame; 12. Motor; 13. Pointer; 14. Scale plate; 15. Support plate; 16. Second cylinder; 17. Heating plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5 This utility model is a hot melt pressing mold for a biodegradable express bag sealing machine, including a bracket 1. The top of the bracket 1 has a mounting hole for installing and fixing the entire equipment. An upper pressing plate 2 is provided on one side of the bracket 1, and a lower pressing plate 3 is provided at the bottom of the upper pressing plate 2. A heat preservation mechanism is provided on one side of the bracket 1. The heat preservation mechanism includes a fixed heat preservation shell 4 respectively provided on the surface of the upper pressing plate 2 and the lower pressing plate 3, and a movable heat preservation shell 5 provided on one side of the fixed heat preservation shell 4. The fixed heat preservation shell 4 and the movable heat preservation shell 5 are two sets and are distributed vertically. The two sets of fixed heat preservation shell 4 and movable heat preservation shell 5 can form two closed shells to respectively insulate the upper pressing plate 2 and the lower pressing plate 3, reducing heat loss. An adjustment mechanism is provided on one side of the upper pressing plate 2. The adjustment mechanism includes a threaded rod 6 provided on one side of the upper pressing plate 2, and a threaded sleeve 7 threadedly connected to the surface of the threaded rod 6.

[0028] Example 2

[0029] Please see Figures 1-5Based on Embodiment 1, the insulation mechanism further includes two support rods 8 fixedly connected to one side of the fixed insulation shell 4. The upper support rod 8 is fixedly connected to the threaded sleeve 7, and the lower support rod 8 is fixedly connected to the bracket 1. A fixing plate 9 is fixedly connected to one side of the support rod 8, and a first cylinder 10 is fixedly connected to one side of the fixing plate 9. The output end of the first cylinder 10 is fixedly connected to the movable insulation shell 5. The adjustment mechanism also includes a fixing frame 11 fixedly connected to the top of the bracket 1, and a motor 12 fixedly connected to the bottom of the fixing frame 11. The output end of the motor 12 is fixedly connected to the top of the threaded rod 6, and the output end of the motor 12 is movably connected to the bracket 1 via a bearing. The pointer 13 is fixedly connected to a scale plate 14 on one side of the bracket 1. The bottom end of the threaded rod 6 is rotatably connected to a support plate 15. The bottom end of the threaded rod 6 is rotatably connected to the support plate 15 through a bearing. One side of the support plate 15 is fixedly connected to the bracket 1. One side of the threaded sleeve 7 is fixedly connected to a slider. The slider is slidably connected to the bracket 1. One side of the bracket 1 has a groove that matches the slider. The fixed insulation shell 4 and the movable insulation shell 5 are in contact. One side of the bracket 1 is fixedly connected to a controller. The top of the upper pressing plate 2 and the bottom of the lower pressing plate 3 are both fixedly connected to a second cylinder 16. The second cylinder 16 is fixedly connected to the fixed insulation shell 4. The bottom of the upper pressing plate 2 and the top of the lower pressing plate 3 are both fixedly connected to a heating plate 17.

[0030] The working principle of this utility model is as follows: the motor 12 is started, which drives the threaded rod 6 to rotate. The threaded sleeve 7 moves on the threaded rod 6, thereby driving the upper pressing plate 2 and its related structures to rise and fall as a whole. The distance between the upper and lower pressing plates 3 is precisely controlled by the pointer 13 and the scale plate 14 to adapt to express bags of different thicknesses.

[0031] The first cylinder 10 moves the movable insulation shell 5, exposing the upper and lower pressing plates 3. The heating plate 17 is energized and heated to bring the pressing plates to their working temperature. The second cylinder 16 drives the upper pressing plate 2 to press down, cooperating with the lower pressing plate 3 to heat-seal the opening of the express bag. After sealing, the second cylinder 16 resets, and the upper and lower pressing plates 2 and 3 also reset. The first cylinder 10 pushes the movable insulation shell 5 back to its original position, forming a sealed space with the fixed insulation shell 4, reducing heat loss from the upper and lower pressing plates 2 and 3, and saving preheating time for the next sealing. Through the synergistic effect of the insulation and adjustment mechanisms, the high energy consumption and poor adaptability of traditional hot-melt pressing molds are solved. This design combines the advantages of energy saving, environmental protection, high efficiency and stability, and convenient operation, making it suitable for the large-scale production of biodegradable express bags.

[0032] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hot melt pressing mold for a biodegradable express bag sealing machine, comprising a support (1), characterized in that: The bracket (1) is provided with an upper pressing plate (2) on one side, and a lower pressing plate (3) is provided at the bottom of the upper pressing plate (2); A heat preservation mechanism is provided on one side of the bracket (1). The heat preservation mechanism includes a fixed heat preservation shell (4) respectively disposed on the surface of the upper pressing plate (2) and the lower pressing plate (3), and a movable heat preservation shell (5) disposed on one side of the fixed heat preservation shell (4). An adjustment mechanism is provided on one side of the upper pressing plate (2). The adjustment mechanism includes a threaded rod (6) provided on one side of the upper pressing plate (2) and a threaded sleeve (7) threadedly connected to the surface of the threaded rod (6).

2. The hot melt pressing mold of the biodegradable express bag sealing machine according to claim 1, characterized in that: The insulation mechanism also includes a support rod (8) fixedly connected to one side of the fixed insulation shell (4), a fixing plate (9) fixedly connected to one side of the support rod (8), and a first cylinder (10) fixedly connected to one side of the fixing plate (9).

3. The hot melt pressing mold of the biodegradable express bag sealing machine according to claim 1, characterized in that: The adjustment mechanism also includes a fixed frame (11) fixedly connected to the top of the bracket (1), a motor (12) fixedly connected to the bottom of the fixed frame (11), a pointer (13) fixedly connected to one side of the threaded sleeve (7), and a scale plate (14) fixedly connected to one side of the bracket (1).

4. The hot melt pressing mold of the biodegradable express bag sealing machine according to claim 1, characterized in that: The bottom end of the threaded rod (6) is rotatably connected to a support plate (15), and one side of the support plate (15) is fixedly connected to the bracket (1).

5. The hot melt pressing mold of the biodegradable express bag sealing machine according to claim 1, characterized in that: A slider is fixedly connected to one side of the threaded sleeve (7), and the slider is slidably connected to the bracket (1).

6. The hot melt pressing mold of the biodegradable express bag sealing machine according to claim 1, characterized in that: The fixed insulation shell (4) and the movable insulation shell (5) are in contact with each other, and a controller is fixedly connected to one side of the bracket (1).

7. The hot melt pressing mold of the biodegradable express bag sealing machine according to claim 1, characterized in that: A second cylinder (16) is fixedly connected to the top of the upper pressing plate (2) and the bottom of the lower pressing plate (3), and a heating plate (17) is fixedly connected to the bottom of the upper pressing plate (2) and the top of the lower pressing plate (3).

Images