A plastic tube heat sealing device

Abstract

The utility model relates to the technical field of plastic pipe heat sealing technology discloses a plastic pipe heat sealing device, the plastic pipe heat sealing device includes the bottom plate, is fixedly installed with the mounting bracket on the bottom plate, is provided with the heat sealing subassembly on the bottom plate, the heat sealing subassembly includes hydraulic device. The plastic pipe heat sealing device, in order to make the device satisfy the efficient production demand of plastic pipe batch processing, through setting up heat sealing subassembly, the component cooperation hydraulic device pulls down the mounting plate, drives the round plate to pass through the vertical pole, the connecting block makes the pressing strip down pressure, the spring is compressed in the slide cylinder and cylinder, provides stable buffer pressure, ensures that the pressing strip is closely attached to the surface of plastic pipe, and the heating device passes through the heat transfer pipe and transmits heat to the heating strip, and the contact surface of plastic pipe is heat fused and sealed, avoids the leakage caused by the sealing not being strict, and the sharp cutting strip drops down with the pressing strip simultaneously, and is accurately embedded in the cutting groove of the heating strip, and the plastic pipe is cut after heat sealing.

Description

Technical Field

[0001] This utility model relates to the field of heat sealing technology for plastic tubes, specifically a heat sealing device for plastic tubes. Background Technology

[0002] Plastic pipes are widely used in food packaging, pharmaceutical transportation, municipal water supply and drainage, and other fields due to their lightweight, corrosion resistance, and low cost. The sealing quality of their ports directly determines the safety of the contents and the reliability of transportation.

[0003] The heat sealing device consists of a tube positioning mechanism, a precise temperature control heat sealing module, a pressure regulating component, a cooling and shaping unit, and an intelligent control system. After the plastic tube is clamped and fixed by the positioning mechanism, the heating head of the heat sealing module comes into contact with the tube end and achieves heat fusion sealing under the set temperature and pressure. Subsequently, the cooling unit quickly cools down and shapes the tube to ensure the stability of the sealing structure.

[0004] However, the above-mentioned equipment has obvious shortcomings in use. Traditional plastic tube heat sealing devices require three steps: heat sealing, cooling, and manual cutting. The total processing time for batch processing is relatively long, which is far lower than the production cycle of the packaging industry. Cutting requires the use of scissors or cutting machines, and manual operation is prone to causing the cut to be crooked, which affects subsequent assembly. In view of this, we propose a plastic tube heat sealing device. Utility Model Content

[0005] The purpose of this invention is to provide a heat-sealing device for plastic tubes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A heat-sealing device for plastic tubes includes a base plate, on which a mounting bracket is fixedly mounted, and a heat-sealing assembly is disposed on the base plate. The heat-sealing assembly includes:

[0008] A hydraulic device is fixedly mounted on the mounting bracket. A mounting plate is fixedly mounted on the piston end of the hydraulic device. A circular plate is fixedly mounted on the mounting plate. A sliding cylinder is fixedly mounted on the circular plate. A circular cylinder is fixedly mounted on the mounting bracket.

[0009] A vertical rod is fixedly installed at the bottom of the circular plate, a spring is fixedly installed inside the cylinder, a connecting block is fixedly installed at the other end of the vertical rod, a pressing strip is fixedly installed on the connecting block, and a spike-shaped cutting strip is fixedly installed on the pressing strip.

[0010] A heating device is fixedly installed on the base plate, one end of a conductive tube is fixedly installed on the heating device, a heating strip is fixedly installed on the base plate, and a cutting groove is opened on the heating strip.

[0011] In a further embodiment, multiple sets of the circular plate, sliding cylinder, cylindrical tube, vertical rod, spring, and connecting block are provided.

[0012] In a further embodiment, the slide tube slides inside the cylinder, the other end of the spring is fixedly installed on the circular plate, the spring is disposed inside the slide tube and the cylinder, and the vertical rod is disposed inside the spring.

[0013] In a further embodiment, the connecting block and pressing strip are positioned below the cylinder, the cutting groove is positioned directly below the spiked cutting strip, and the other end of the conductive tube is connected to the heating strip.

[0014] In a further embodiment, the mounting frame is provided with an auxiliary component, which includes a limiting rod. One end of the limiting rod is fixedly installed on the pressing strip, and a limiting plate is fixedly installed on the other end of the limiting rod. A limiting groove is formed on the mounting frame, a rubber pad is fixedly installed at the bottom of the cylinder, and a rubber block is fixedly installed on the connecting block.

[0015] In a further embodiment, multiple sets of the limiting rod, limiting plate, limiting groove, rubber pad, and rubber block are provided.

[0016] In a further embodiment, the limiting rod slides inside the limiting groove, the limiting plate is positioned above the limiting groove, and the rubber pad is positioned directly above the rubber block.

[0017] Compared with the prior art, the present invention provides a heat-sealing device for plastic tubes, which has the following advantages:

[0018] 1. This plastic pipe heat sealing device, in order to meet the high-efficiency production needs of mass processing of plastic pipes, is equipped with a heat sealing component. This component, in conjunction with a hydraulic device, pulls the mounting plate down, which in turn drives the circular plate to press down the pressing strip through the vertical rod and connecting block. The spring is compressed inside the slide cylinder and the cylinder, providing stable buffer pressure to ensure that the pressing strip is tightly attached to the surface of the plastic pipe. At the same time, the heating device transfers heat to the heating strip through the conduction tube, performing heat fusion sealing on the contact surface of the plastic pipe to avoid leakage caused by poor sealing. Simultaneously, the spiked cutting strip descends synchronously with the pressing strip and accurately embeds into the cutting groove of the heating strip to complete the cutting of the heat-sealed plastic pipe.

[0019] 2. In order to reduce the equipment maintenance cost, the heat sealing device for plastic tubes is equipped with an auxiliary component. When the pressing bar descends, the limiting rod slides along the limiting groove. The limiting plate prevents the limiting rod from disengaging from the groove, ensuring that the pressing bar and the spiked cutting bar always maintain vertical movement and avoid misalignment of the heat sealing caused by deviation. At the same time, the rubber pad at the bottom of the cylinder and the rubber block on the connecting block stick together when the pressing bar is pressed to the limit position, buffering the impact force of the pressure device and preventing the pressing bar and heating bar from deforming due to rigid collision. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0023] Figure 4 This is a cross-sectional view of part of the structure of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged structural diagram of region B in the middle;

[0025] Figure 6 This is a partial structural diagram of the present utility model.

[0026] In the diagram: 1. Base plate; 2. Mounting bracket; 3. Heat sealing assembly; 31. Hydraulic device; 32. Mounting plate; 33. Circular plate; 34. Sliding cylinder; 35. Cylinder; 36. Vertical rod; 37. Spring; 38. Connecting block; 39. Pressing strip; 310. Spiked cutting strip; 311. Heating device; 312. Conducting pipe; 313. Heating strip; 314. Cutting groove; 4. Auxiliary assembly; 41. Limiting rod; 42. Limiting plate; 43. Limiting groove; 44. Rubber pad; 45. Rubber block. Detailed Implementation

[0027] 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.

[0028] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0029] Please see Figures 1-6 This utility model provides a technical solution:

[0030] A heat sealing device for plastic tubes includes a base plate 1, on which a mounting bracket 2 is fixedly installed.

[0031] In one embodiment of this utility model, a heat-sealing assembly 3 is provided on the base plate 1. The heat-sealing assembly 3 includes a hydraulic device 31. The hydraulic device 31 is fixedly mounted on the mounting frame 2. A mounting plate 32 is fixedly mounted on the piston end of the hydraulic device 31. A circular plate 33 is fixedly mounted on the mounting plate 32. A slide cylinder 34 is fixedly mounted on the circular plate 33. A cylinder 35 is fixedly mounted on the mounting frame 2. One end of a vertical rod 36 is fixedly mounted on the bottom of the circular plate 33. One end of a spring 37 is fixedly mounted inside the cylinder 35. A connecting block 38 is fixedly mounted on the other end of the vertical rod 36. A pressing strip 39 is fixedly mounted on the connecting block 38. A spiked cutting strip 310 is fixedly mounted on the pressing strip 39. A series of components are fixedly mounted on the base plate 1. Heating device 311, with one end of conductive tube 312 fixedly installed on heating device 311, heating strip 313 fixedly installed on base plate 1, heating strip 313 having a cutting groove 314, and multiple sets of circular plate 33, sliding cylinder 34, cylindrical cylinder 35, vertical rod 36, spring 37 and connecting block 38 are provided. Sliding cylinder 34 slides inside cylindrical cylinder 35, the other end of spring 37 is fixedly installed on circular plate 33, spring 37 is located inside sliding cylinder 34 and cylindrical cylinder 35, vertical rod 36 is located inside spring 37, connecting block 38 and pressing strip 39 are located below cylindrical cylinder 35, cutting groove 314 is located directly below spike-shaped cutting strip 310, and the other end of conductive tube 312 is connected to heating strip 313.

[0032] In this embodiment, the plastic tube to be heat-sealed is placed above the heating strip 313 on the base plate 1. The heating device 311 is activated, and heat is transferred to the heating strip 313 through the conduction pipe 312, causing the heating strip 313 to heat up to the required heat-sealing temperature. The hydraulic device 31 on the mounting bracket 2 is activated, and its piston end pulls the mounting plate 32 downward. The mounting plate 32 drives multiple sets of circular plates 33 to descend synchronously. The vertical rod 36 at the bottom of the circular plate 33 pushes the connecting block 38 and the pressing strip 39 closer to the plastic tube. During this process, the circular plate 33... The slide cylinder 34 on plate 33 slides along the cylinder 35 of mounting bracket 2. The spring 37 inside cylinder 35 is compressed, providing stable buffer pressure for the pressing strip 39, ensuring that the pressing strip 39 fits tightly against the surface of the plastic tube, so that the plastic tube and the heating strip 313 are in full contact, achieving heat fusion sealing and avoiding leakage caused by poor sealing. At the same time, the spike-shaped cutting strip 310 on the pressing strip 39 descends synchronously with the pressing strip 39 and is embedded in the cutting groove 314 on the heating strip 313, cutting the plastic tube in half after heat sealing.

[0033] In one embodiment of this utility model, an auxiliary component 4 is provided on the mounting frame 2. The auxiliary component 4 includes a limiting rod 41. One end of the limiting rod 41 is fixedly installed on the pressing strip 39, and a limiting plate 42 is fixedly installed on the other end of the limiting rod 41. A limiting groove 43 is opened on the mounting frame 2. A rubber pad 44 is fixedly installed at the bottom of the cylinder 35. A rubber block 45 is fixedly installed on the connecting block 38. Multiple sets of limiting rod 41, limiting plate 42, limiting groove 43, rubber pad 44, and rubber block 45 are provided. The limiting rod 41 slides inside the limiting groove 43. The limiting plate 42 is located above the limiting groove 43, and the rubber pad 44 is located directly above the rubber block 45.

[0034] In this embodiment, during the descent of the pressing strip 39, the limiting rod 41 on its surface slides along the limiting groove 43 of the mounting frame 2, strictly limiting the movement direction of the pressing strip 39 and preventing the pressing strip 39 from deviating, which could lead to misalignment of the heat seal or cutting deviation. The limiting plate 42 at the top of the limiting rod 41 is locked above the limiting groove 43 to prevent the limiting rod 41 from falling out of the limiting groove 43 and ensure the stability of the limiting structure. When the pressing strip 39 is pressed down to the limit position, the rubber block 45 on the connecting block 38 and the rubber pad 44 at the bottom of the cylinder 35 stick together. Through the impact force of the rubber elastic buffer pressure device 31, the pressing strip 39 and the heating strip 313 are prevented from deforming due to rigid collision.

[0035] All electrical components appearing in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the hydraulic device 31 and the heating device 311. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. In addition, the standard parts are all conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art.

[0036] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0037] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A plastic tube heat sealing device, comprising a base plate (1), a mounting frame (2) is fixedly installed on the base plate (1), characterized in that: A heat-sealing assembly (3) is provided on the base plate (1), and the heat-sealing assembly (3) includes: Hydraulic device (31), the mounting bracket (2) is fixedly mounted with hydraulic device (31), the piston end of the hydraulic device (31) is fixedly mounted with mounting plate (32), the mounting plate (32) is fixedly mounted with circular plate (33), the circular plate (33) is fixedly mounted with sliding cylinder (34), and the mounting bracket (2) is fixedly mounted with cylinder (35). A vertical rod (36) is fixedly installed at the bottom of the circular plate (33), and a spring (37) is fixedly installed inside the cylinder (35). A connecting block (38) is fixedly installed at the other end of the vertical rod (36), and a pressing strip (39) is fixedly installed on the connecting block (38). A spike-shaped cutting strip (310) is fixedly installed on the pressing strip (39). Heating device (311), heating device (311) is fixedly installed on the base plate (1), one end of conduction tube (312) is fixedly installed on the heating device (311), heating strip (313) is fixedly installed on the base plate (1), and cutting groove (314) is opened on the heating strip (313).

2. The plastic tube heat sealing apparatus according to claim 1, characterized by: The circular plate (33), sliding cylinder (34), cylindrical tube (35), vertical rod (36), spring (37) and connecting block (38) are provided in multiple sets.

3. The plastic tube heat sealing apparatus according to claim 1, wherein: The slide cylinder (34) slides inside the cylinder (35), and the other end of the spring (37) is fixedly installed on the circular plate (33). The spring (37) is located inside the slide cylinder (34) and the cylinder (35), and the vertical rod (36) is located inside the spring (37).

4. The plastic tube heat sealing apparatus according to claim 1, wherein: The connecting block (38) and pressing strip (39) are located below the cylinder (35), the cutting groove (314) is located directly below the spiked cutting strip (310), and the other end of the conducting tube (312) is connected to the heating strip (313).

5. The plastic tube heat sealing apparatus according to claim 1, wherein: The mounting frame (2) is provided with an auxiliary component (4), which includes a limiting rod (41). One end of the limiting rod (41) is fixedly installed on the pressing strip (39), and a limiting plate (42) is fixedly installed on the other end of the limiting rod (41). A limiting groove (43) is opened on the mounting frame (2). A rubber pad (44) is fixedly installed at the bottom of the cylinder (35), and a rubber block (45) is fixedly installed on the connecting block (38).

6. The plastic tube heat sealing apparatus according to claim 5, wherein: The limiting rod (41), limiting plate (42), limiting groove (43), rubber pad (44), and rubber block (45) are provided in multiple sets.

7. The plastic tube heat sealing apparatus according to claim 5, wherein: The limiting rod (41) slides inside the limiting groove (43), the limiting plate (42) is set above the limiting groove (43), and the rubber pad (44) is set directly above the rubber block (45).

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