Splitting machine pressing device with heating edge sealing structure
By employing a heated sealing structure and a spring mechanism in the pressing device of the slitting machine, the problem of water leakage at the sealing and cutting edges of plastic film bags has been solved, thereby improving the width and strength of the sealing edge and ensuring sealing performance and service life.
Patent Information
- Application Number
- CN202423230904.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing slitting machines produce thinner sealing edges during the sealing and cutting of plastic film bags, making them prone to water leakage and impractical.
Design a slitting machine pressing device with a heated edge sealing structure. The pressing plate is made of die-cast aluminum alloy, and a heating box with built-in heating wire is installed on the outside of the pressing plate. The pressing plate is heated by the heating wire to achieve heat sealing. Combined with a spring mechanism and rubber block to prevent impact, the sealing width and strength are ensured.
This effectively increases the practicality and reliability of the sealing and cutting process, avoids water leakage problems, and ensures the sealing performance and service life of the plastic film bags.
Smart Images

Figure CN223560021U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of down -pressing device, concretely is a slitting machine down -pressing device with heating edge sealing structure. BACKGROUND
[0002] The chemical reagent bottle is a container for storing chemical reagents. According to different use scenarios and reagent properties, reagent bottles can be divided into various types, each type having specific design and use requirements. During processing, chemical reagent bottles sometimes need to be coated with a film for use. To reduce liquid leakage and pollution, a plastic film bag is placed around the chemical reagent bottle. During the production and processing of the plastic film bag, a slitting device is used to slit the bag body.
[0003] For example, the authorized patent (a sealing and cutting machine) with publication number CN219076696U: including a workbench and a mounting frame, the mounting frame is fixedly installed on the top of the workbench, a rotating rod is rotatably installed on the inner side wall of the mounting frame, a fixed plate is fixedly installed on one end of the rotating rod, a drive cylinder is fixedly installed on the top of the fixed plate, a connecting plate is fixedly installed on the bottom of the drive cylinder, a buffer spring is fixedly installed on the bottom of the connecting plate, a bottom plate is fixedly installed on the bottom of the buffer spring, a T-shaped sliding groove is provided on the bottom plate, a T-shaped sliding block is movably installed in the T-shaped sliding groove, a limiting plate is fixedly installed on the top of the T-shaped sliding block, a heat sealing knife is fixedly installed on the bottom of the T-shaped sliding block, and a fixing assembly is provided on the bottom plate.
[0004] The above-mentioned prior art can seal and cut the plastic bag, but does not have a structure to assist in increasing the edge sealing width, and thus when the plastic film bag is sealed and cut, the slitting edge is thin and prone to water leakage, and the practicality is poor. Therefore, there is an urgent need in the market to develop a slitting machine down -pressing device with a heating edge sealing structure to help people solve the existing problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a slitting machine down -pressing device with a heating edge sealing structure to solve the problem of thin slitting edge, easy water leakage and poor practicality when the plastic film bag is sealed and cut as mentioned in the background art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a slitting machine down -pressing device with a heating edge sealing structure, comprising a down -pressing plate, the down -pressing plate is provided with two, and the down -pressing plate is provided as an L-shaped plate, a sealing and cutting knife is arranged between the two down -pressing plates, a heating box is fixedly installed on the outer side of the two down -pressing plates, an electric heating wire is arranged in the heating box, and the electric heating wire is in close contact with the surface of the down -pressing plate, and the down -pressing plate is made of die-cast aluminum alloy.
[0007] Preferably, two said lower pressing plates and sealing cutters are fixedly installed with side boxes, the inside of the side box is provided with a elastic mechanism, and a long slot hole is formed in one side end face of the side box.
[0008] Preferably, the elastic mechanism comprises a straight column, a compression spring, a lifting block and a transmission plate, the upper end of the straight column is fixedly connected with the side box, the compression spring is fixedly installed below the straight column, the lifting block is fixedly installed below the compression spring, the transmission plate is fixedly installed on one side of the lifting block, and one end of the transmission plate extends to the outside of the side box through the long slot hole of the side box and is fixedly connected with the lower pressing plate.
[0009] Preferably, the inside of the straight column is provided with a column cavity, the inside of the compression spring is provided with a guide column, the lower end of the guide column is fixedly connected with the lifting block, the upper end of the guide column extends to the inside of the column cavity of the straight column, and the diameter of the column cavity of the straight column matches the diameter of the guide column.
[0010] Preferably, the inside of the side box is fixedly installed with stabilizing rods on one side of the elastic mechanism, the stabilizing rods are provided in plurality, one side of the lifting block is fixedly installed with a stabilizing plate, the inside of the stabilizing plate is provided with plate holes, the plate holes are provided in plurality, the plate holes and the stabilizing rods are in same number and in corresponding positions, and the stabilizing rods slide through the stabilizing plate through the plate holes.
[0011] Preferably, the outside of two said heating boxes is fixedly installed with protective plates, the lower side of the lifting block is provided with a rubber block, and the rubber block is fixedly connected with the side box.
[0012] Preferably, the outside of two said side boxes is fixedly installed with cushion blocks, one side of the cushion block is fixedly installed with a mounting plate, and the inside of the mounting plate is provided with mounting slot holes in plurality above.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] (1) The utility model discloses a sealing and cutting device for plastic film bag, which comprises a base, a sealing cutter, a heating box, a lower pressing plate and a sealing cutter, wherein the sealing cutter is fixedly installed on the base, the heating box is fixedly installed on the outside of the lower pressing plate, the sealing cutter is fixedly installed on the heating box, and the lower pressing plate is fixedly installed on the sealing cutter.
[0015] (2) The utility model discloses a spring mechanism is set up, when the cutting processing of plastic film bag is carried out, make the elastic upper shift of lifting piece and transmission plate, do not hinder the cutting work of the continuous lower shift of seal cutting knife, and then make the elastic movement of lower pressing plate, ensure the accuracy of cutting and edge sealing.
[0016] (3) The utility model discloses a rubber block is set up below the lifting piece, when the bag body of seal cutting knife is cut and is moved up after plastic film bag, when the lifting piece is moved down under the tension of compression spring, the lifting piece will not hit the side box, and the practicability is increased. DRAWINGS
[0017] Figure 1 It is the schematic diagram of the lower pressing device of cutting machine with heating edge sealing structure of the utility model;
[0018] Figure 2 It is the sectional view of the lower pressing device of cutting machine with heating edge sealing structure of the utility model;
[0019] Figure 3 It is the enlarged schematic diagram of A part of the utility model;
[0020] Figure 4 It is the structural schematic diagram of the stabilizing plate of the utility model.
[0021] In the drawing: 1, seal cutting knife;2, side box;201, long slot hole;3, lower pressing plate;4, heating box;5, protection plate;6, mounting plate;601, mounting slot hole;7, cushion block;8, straight column;9, compression spring;10, guide column;11, lifting piece;12, transmission plate;13, rubber block;14, stabilizing plate;1401, plate hole;15, stabilizing rod. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0023] Please refer to Figures 1-4 The utility model provides an embodiment: a lower pressing device of cutting machine with heating edge sealing structure, including lower pressing plate 3, lower pressing plate 3 is set up two, and lower pressing plate 3 is set as L-shaped board, and the seal cutting knife 1 of two lower pressing plates 3 is set up, the seal cutting knife 1 is connected with heating structure when installing and using, to facilitate the edge sealing when cutting, and the outside of two lower pressing plates 3 is fixedly installed with heating box 4, and the inside of heating box 4 is provided with electric heating wire, and the electric heating wire is close to the surface of lower pressing plate 3, and lower pressing plate 3 is made of die-casting aluminum alloy, has good heat conduction capacity, so that the electric heating wire is electrified, can heat lower pressing plate 3, and the cutting place of plastic film bag is heat sealed on both sides of lower pressing plate 3.
[0024] In use, by fixing and installing the heating box 4 outside the lower pressing plate 3 and internally embedding the electric heating wire close to the surface of the lower pressing plate, not only the function of auxiliary heating sealing edge is realized while the plastic film bag is cut by the cutting knife 1, but also the lower pressing plate 3 is made of die-casting aluminum alloy, which has good heat conduction capacity, so that the electric heating wire can effectively heat the lower pressing plate 3 after being electrified, and then heat seal the two sides of the cutting position during the moving process of the lower pressing plate 3, effectively increasing the width and strength of the sealing edge, which greatly improves the practicability and reliability of the cutting and sealing process, avoids the water leakage problem caused by too thin sealing edge, and ensures the sealing performance and service life of the plastic film bag.
[0025] Please refer to Figure 2 and Figure 3 Two side boxes 2 are fixedly installed between the two lower pressing plates 3 and the cutting knife 1, the bottom of the lower pressing plate 3 is lower than the bottom of the cutting knife 1, the inside of the side box 2 is provided with a elastic mechanism, a long slot hole 201 is arranged on one side end face of the side box 2, the elastic mechanism includes a straight column 8, a compression spring 9, a lifting block 11 and a transmission plate 12, the upper end of the straight column 8 is fixedly connected with the side box 2, the compression spring 9 is fixedly installed below the straight column 8, the lifting block 11 is fixedly installed below the compression spring 9, the transmission plate 12 is fixedly installed on one side of the lifting block 11, and one end of the transmission plate 12 extends to the outside of the side box 2 through the long slot hole 201 of the side box 2 and is fixedly connected with the lower pressing plate 3.
[0026] When the plastic film bag is cut, the cutting knife 1 is driven to move downward, the lower pressing plate 3 first contacts the cutting position of the bag body of the plastic film bag on both sides, improves the position stability of the bag body of the plastic film bag, and can heat seal at the same time, then when the cutting knife 1 continues to move downward, the lifting block 11 and the transmission plate 12 are elastically moved upward by the elasticity of the compression spring 9, so as not to hinder the cutting work of the cutting knife 1, and the elastic mechanism enables the lower pressing plate 3 to move elastically, ensuring the accuracy of cutting and sealing.
[0027] Please refer to Figures 1-4 The inside of the straight column 8 is provided with a column cavity, the inside of the compression spring 9 is provided with a guide column 10, the lower end of the guide column 10 is fixedly connected with the lifting block 11, the upper end of the guide column 10 extends to the inside of the column cavity of the straight column 8, and the diameter of the column cavity of the straight column 8 matches the diameter of the guide column 10.
[0028] The column cavity arranged in the inside of the straight column 8 and the guide column 10 enable the lifting block 11 to slide in the straight column 8 when it moves elastically, so as to guide the lifting block 11 to move elastically, increasing the linear stability of the lifting block 11.
[0029] Please refer to Figure 3 andFigure 4 A stabilizing rod 15 is fixedly installed inside the side box 2 along one side of the spring mechanism, and multiple stabilizing rods 15 are provided. A stabilizing plate 14 is fixedly installed on one side of the lifting block 11. The stabilizing plate 14 has multiple plate holes 1401 inside. The number of plate holes 1401 and the stabilizing rods 15 are the same and their positions correspond. The stabilizing rods 15 slide through the stabilizing plate 14 through the plate holes 1401.
[0030] By using the stabilizing plate 14 and stabilizing rod 15, the stabilizing plate 14 moves up and down along the stabilizing rod 15 when the lifting block 11 moves up and down elastically. This restricts the up and down movement of the lifting block 11, prevents the lifting block 11 from rotating, and increases its practicality.
[0031] Please see Figure 1 and Figure 3 Both heating boxes 4 are fixedly installed with protective plates 5 on their outer sides, which can protect the two sides of the lower pressure plate 3 and increase safety. A rubber block 13 is set below the lifting block 11, and the rubber block 13 is fixedly connected to the side box 2.
[0032] By using the rubber block 13, when the sealing and cutting knife 1 moves upward after cutting the plastic film bag, the lifting block 11 moves downward under the tension of the compression spring 9, and the lifting block 11 will not collide with the side box 2, thus increasing practicality.
[0033] Please see Figure 2 Both side boxes 2 are fixedly installed with pads 7 on their outer sides. A mounting plate 6 is fixedly installed on one side of the pads 7. The mounting plate 6 has multiple mounting slots 601 on its upper part.
[0034] The mounting plate 6 and the multiple mounting slots 601 on the mounting plate 6 facilitate the installation and fixing of the sealing and cutting knife 1, making it easier to install the sealing and cutting knife 1 on the slitting machine and increasing its practicality.
[0035] Working principle: During use, the device uses two L-shaped pressure plates 3 in conjunction with the sealing and cutting blade 1, and the heating wire in the heating box 4 fixed on the outside of the pressure plates 3 to heat the pressure plates 3. This achieves the function of auxiliary heating and sealing while cutting the plastic film bag. During the pressing process, the pressure plates 3 first contact the two sides of the cutting position of the plastic film bag, which improves the positional stability of the bag. Through its good thermal conductivity, it assists in heat sealing the film, effectively increasing the width and strength of the sealing edge. Then, the sealing and cutting blade 1 is driven to continue to move downward. The elasticity of the compression spring 9 causes the lifting block 11 and the transmission plate 12 to move upward elastically, avoiding obstruction of the cutting work of the sealing and cutting blade 1. After the cutting is completed, the sealing and cutting blade 1 moves upward. When the lifting block 11 moves downward under the tension of the compression spring 9, the rubber block 13 prevents the lifting block 11 from colliding with the side box 2.
[0036] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other particular forms without departing from the spirit or essential characteristics of the application. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No feature of the application is considered critical unless it is expressly stated in the claims.
Claims
1. A slitter downstacker with a heat-seal edge structure, comprising a downstacker plate (3), characterized in that: Two lower pressing plates (3) are arranged, and the lower pressing plates (3) are arranged as L-shaped plates; a sealing cutter (1) is arranged between the two lower pressing plates (3); heating boxes (4) are fixedly installed on the outer sides of the two lower pressing plates (3); electric heating wires are arranged in the heating boxes (4) and tightly adhere to the surfaces of the lower pressing plates (3); and the lower pressing plates (3) are made of die-cast aluminum alloy.
2. The slitter downstacker with a heat seal edge structure according to claim 1, wherein: Side boxes (2) are fixedly installed between the two lower pressing plates (3) and the sealing cutter (1); a long slot hole (201) is arranged on one side end face of the side box (2).
3. The downstacker with a heat seal edge structure according to claim 2, characterized in that: The elastic mechanism comprises a straight column (8), a compression spring (9), a lifting block (11) and a transmission plate (12); the upper end of the straight column (8) is fixedly connected with the side box (2); the compression spring (9) is fixedly installed below the straight column (8); the lifting block (11) is fixedly installed below the compression spring (9); the transmission plate (12) is fixedly installed on one side of the lifting block (11); and one end of the transmission plate (12) extends to the outside of the side box (2) through the long slot hole (201) of the side box (2) and is fixedly connected with the lower pressing plate (3).
4. The slitter downstacker with a heat seal edge structure according to claim 3, wherein: The inside of the straight column (8) is provided with a column cavity, the inside of the compression spring (9) is provided with a guide column (10), the lower end of the guide column (10) is fixedly connected with the lifting block (11), the upper end of the guide column (10) extends to the inside of the column cavity of the straight column (8), and the diameter of the column cavity of the straight column (8) matches the diameter of the guide column (10).
5. The downstack apparatus for a slitter with a heat seal edge according to claim 4, wherein: A plurality of stabilizing rods (15) are fixedly installed on one side of the elastic mechanism in the inside of the side box (2); a stabilizing plate (14) is fixedly installed on one side of the lifting block (11); a plurality of plate holes (1401) are arranged in the inside of the stabilizing plate (14); the number of the plate holes (1401) is the same as that of the stabilizing rods (15) and the positions of the plate holes (1401) correspond to those of the stabilizing rods (15); and the stabilizing rods (15) slide through the stabilizing plate (14) through the plate holes (1401).
6. The slitter downstack apparatus having a heat seal edge according to claim 5, wherein: A protective plate (5) is fixedly installed on the outer side of each of the two heating boxes (4); a rubber block (13) is arranged below the lifting block (11); and the rubber block (13) is fixedly connected with the side box (2).
7. The downstack apparatus for a slitter with a heat seal edge according to claim 6, wherein: A cushion block (7) is fixedly installed on the outer side of each of the two side boxes (2); an installation plate (6) is fixedly installed on one side of the cushion block (7); a plurality of installation slot holes (601) are arranged in the upper part of the inside of the installation plate (6).
Citation Information
Patent Citations
Sealing and cutting machine
CN219076696U