Melt extrusion mechanism for producing POF (Polyolefin Fiber) heat shrinkage film

Abstract

The utility model discloses a melt extrusion mechanism for producing a POF (Polyolefin Fiber) heat shrink film, and relates to the technical field of POF heat shrink films, the melt extrusion mechanism for producing the POF heat shrink film comprises a bottom plate, and a heating box is fixedly mounted on one side of the top of the bottom plate; and a driving mechanism for screening heat shrinkage film particles is fixedly mounted on one side of the top of the heating box. According to the device, the mesh plate is provided with a porous structure, so that heat shrinkage film raw material particles in the transfer box can be conveniently screened, and the raw material particles which do not conform to follow-up hot melting extrusion are conveyed into the lifting device and are conveyed into the shell through power-on operation of the lifting device; and the synchronous motor and the transmission mechanism are used in cooperation to drive the two sets of smashing rollers to rotate, the rotating smashing rollers can smash raw material particles which do not meet the requirement for follow-up hot-melt extrusion and convey the raw material particles into the heating box to be machined, and the function of intelligently conducting hot-melt extrusion on the heat shrinkage film is achieved.

Description

Technical Field

[0001] This utility model relates to the field of POF heat shrink film technology, specifically a melt extrusion mechanism for POF heat shrink film production. Background Technology

[0002] As a packaging material with broad application prospects, heat shrink film is increasingly in demand in the market. With its excellent performance, such as high transparency, moderate shrinkage rate and good strength, heat shrink film has been favored by many industries. In the production process of POF heat shrink film, melt extrusion is a key step. As the market's requirements for the quality and output of POF heat shrink film continue to increase, it has become particularly important to develop an efficient, stable melt extrusion mechanism that can guarantee product quality.

[0003] When processing heat shrink film, a melt extrusion mechanism is required. The "Melt Extrusion Mechanism for Heat Shrink Film Production" disclosed in CN220681552U has solved the technical drawbacks of existing melt extrusion mechanisms for heat shrink film production, which lack a screening device during use, resulting in impurities and large particles in the raw materials not being able to melt and causing blockage of the extrusion die.

[0004] However, there are still many defects in the actual use of melt extrusion mechanisms with similar structures, such as: it is not convenient to screen and automate the processing of heat shrink film raw materials; particles of different sizes in the raw materials are prone to causing blockage of the extrusion head, which reduces the stability and reliability of the device. Therefore, in order to solve this problem, it is urgent to propose a melt extrusion mechanism for POF heat shrink film production. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a melt extrusion mechanism for the production of POF heat shrink film, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a melt extrusion mechanism for producing POF heat shrink film, comprising a base plate, a heating box fixedly installed on one side of the top of the base plate, a drive mechanism for screening heat shrink film particles fixedly installed on one side of the top of the heating box, and a cutting mechanism for cutting the heat shrink film fixedly installed on the other side of the top of the base plate.

[0007] The driving mechanism includes a transfer box for transferring heat shrink film raw material particles. A screen plate for screening the heat shrink film raw material particles is fixed at the bottom inside the transfer box. An elevator is fixedly installed on one side of the transfer box. A housing is fixedly installed on one side of the elevator. Two sets of crushing rollers are rotatably installed inside the housing. A synchronous motor is fixedly installed on one side of the housing. A transmission mechanism is fixedly installed at the output end of the synchronous motor, and the output end of the transmission mechanism is fixedly connected to one end of the crushing roller. A feeding hopper is fixedly installed on the top of one side of the transfer box.

[0008] The cutting mechanism includes a mounting frame, on the top of which two sets of electric rods are fixedly mounted.

[0009] Preferably, a controller is fixedly installed on the top of the base plate near the heating box, and a display screen is fixedly installed on the front side of the controller.

[0010] Preferably, a cutting blade is fixedly installed at the output end of the electric rod, and two sets of support rods are fixedly installed on the top of the base plate near the cutting mechanism, with an auxiliary tool for use in conjunction with the cutting blade fixedly installed at the top of the support rods.

[0011] Preferably, a driver is fixedly installed on one side of the heating box, a threaded push rod is fixedly installed at the output end of the driver, and multiple sets of heating tubes are embedded in the inner wall of the heating box.

[0012] Preferably, an extrusion head is fixedly installed on the other side of the heating box, and an extrusion groove is provided on one side of the extrusion head.

[0013] Preferably, two sets of support frames are fixedly installed at the bottom of the heating box, and the bottom of the support frames is fixedly connected to the top of the base plate.

[0014] This invention provides a melt extrusion mechanism for producing POF heat-shrinkable film. Compared with the prior art, it has the following advantages:

[0015] 1. The porous structure of the mesh plate facilitates the screening of heat-shrinkable film raw material particles inside the transfer box. Combined with a vibrating motor at the bottom of the mesh plate, particles suitable for subsequent hot-melt extrusion are conveyed to the heating chamber, while those not suitable are conveyed to the elevator. The elevator, when powered, transports these particles into the housing. A synchronous motor then drives a transmission mechanism, which in turn rotates two sets of crushing rollers. These rollers crush the particles that are not suitable for hot-melt extrusion and transport them to the heating chamber for further processing. This intelligent hot-melt extrusion of the heat-shrinkable film avoids the problem of clogging the extrusion head due to particles of varying sizes, improving the stability and reliability of the device.

[0016] 2. By controlling two sets of electric rods through the controller, the operator moves the cutting blade vertically, causing it to come into contact with the auxiliary blade, thereby cutting the high-temperature heat shrink film. This avoids the problem of operators being easily burned by high temperatures when cutting high-temperature heat shrink film with the help of external auxiliary equipment. It realizes the function of automatic cutting of heat shrink film, simplifies the processing steps of heat shrink film, and increases the automation effect of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the heating box of this utility model;

[0019] Figure 3 This is a partial structural diagram of the drive mechanism of this utility model;

[0020] Figure 4 This is a partial structural diagram of the cutting mechanism of this utility model.

[0021] In the diagram: 1. Base plate; 101. Controller; 2. Heating box; 201. Driver; 202. Threaded push rod; 203. Heating tube; 3. Drive mechanism; 301. Transfer box; 302. Mesh plate; 303. Elevator; 304. Housing; 305. Crushing roller; 306. Synchronous motor; 307. Transmission mechanism; 308. Feed hopper; 4. Cutting mechanism; 401. Mounting frame; 402. Electric rod; 403. Cutting knife; 404. Auxiliary knife; 5. Extrusion head; 501. Extrusion groove; 6. Support frame. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This utility model provides two technical solutions:

[0024] First embodiment: A melt extrusion mechanism for producing POF heat shrink film includes a base plate 1, a heating box 2 is fixedly installed on one side of the top of the base plate 1, a drive mechanism 3 for screening heat shrink film particles is fixedly installed on one side of the top of the heating box 2, and a cutting mechanism 4 for cutting the heat shrink film is fixedly installed on the other side of the top of the base plate 1.

[0025] The drive mechanism 3 includes a transfer box 301 for transferring heat shrink film raw material particles. A screen plate 302 for screening heat shrink film raw material particles is fixed at the bottom inside the transfer box 301. An elevator 303 is fixedly installed on one side of the transfer box 301. A housing 304 is fixedly installed on one side of the elevator 303. Two sets of crushing rollers 305 are rotatably installed inside the housing 304. A synchronous motor 306 is fixedly installed on one side of the housing 304. A transmission mechanism 307 is fixedly installed at the output end of the synchronous motor 306, and the output end of the transmission mechanism 307 is fixedly connected to one end of the crushing rollers 305. A feeding hopper 308 is fixedly installed on the top of one side of the transfer box 301.

[0026] The cutting mechanism 4 includes a mounting frame 401, two sets of electric rods 402 are fixedly mounted on the top of the mounting frame 401, and a controller 101 is fixedly mounted on the top of the base plate 1 near the heating box 2, and a display screen is fixed on the front side of the controller 101.

[0027] A driver 201 is fixedly installed on one side of the heating box 2. A threaded push rod 202 is fixedly installed at the output end of the driver 201. Multiple heating tubes 203 are embedded in the inner wall of the heating box 2. An extruder 5 is fixedly installed on the other side of the heating box 2. An extrusion groove 501 is opened on one side of the extruder 5. Two sets of support frames 6 are fixedly installed at the bottom of the heating box 2. The bottom of the support frame 6 is fixedly connected to the top of the base plate 1.

[0028] The porous structure of the mesh plate 302 facilitates the screening of heat shrink film raw material particles inside the transfer box 301. In conjunction with the vibration motor at the bottom of the mesh plate 302, particles that meet the requirements for subsequent hot melt extrusion are transported to the heating box 2, while raw material particles that do not meet the requirements for subsequent hot melt extrusion are transported to the elevator 303.

[0029] The lifting device 303 is powered on to transport raw material particles that do not conform to the subsequent hot melt extrusion into the housing 304. Then, the synchronous motor 306 is powered on to drive the transmission mechanism 307 to do work. The transmission mechanism 307 can drive two sets of crushing rollers 305 to rotate. The rotating crushing rollers 305 can crush the raw material particles that do not conform to the subsequent hot melt extrusion and transport them into the heating box 2 for processing, thus realizing the function of intelligent hot melt extrusion of heat shrink film.

[0030] The controller 101 is electrically connected to the internal electrical equipment of the device through wires, which makes it convenient for the operator to intelligently control the power supply and operation of the internal electrical equipment through the controller 101. The display screen makes it easy for the operator to understand the operating status of the internal electrical equipment, thereby making it convenient to control the power supply and operation status of the internal electrical equipment according to the usage needs, and increasing the intelligent effect of the device.

[0031] The heating tube 203 generates high temperature when energized, which facilitates the heating and melting of the raw materials inside the heating box 2. The driver 201 is then energized to drive the threaded push rod 202 to rotate. The rotating threaded push rod 202 pushes the melted raw materials inside the heating box 2, and the pushed raw materials are completely melted and extruded into the heat shrink film through the extrusion head 5.

[0032] By using the extrusion head 5 in conjunction with the extrusion groove 501, the heat shrink film material pushed out from the inside of the heating box 2 can be shaped and extruded, realizing the function of processing the heat shrink film. The support frame 6 provides an installation position for the heating box 2, ensuring the stability of the installation position of the heating box 2.

[0033] The second implementation differs from the first implementation in that: a cutting blade 403 is fixedly installed at the output end of the electric rod 402, and two sets of support rods are fixedly installed on the top of the base plate 1 near the cutting mechanism 4, with an auxiliary blade 404 for use in conjunction with the cutting blade 403 fixedly installed at the top of the support rods.

[0034] The operator controls the two sets of electric rods 402 to operate via the controller 101, which in turn moves the cutting blade 403 vertically. This causes the cutting blade 403 to come into contact with the auxiliary blade 404, thereby cutting the high-temperature heat shrink film. This avoids the problem of the operator being easily burned by the high temperature when cutting the high-temperature heat shrink film with the help of external auxiliary equipment, and realizes the function of automatic cutting of heat shrink film.

[0035] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A melt extrusion mechanism for producing POF heat shrink film, comprising a base plate (1), characterized in that: A heating box (2) is fixedly installed on one side of the top of the base plate (1), a driving mechanism (3) for screening heat shrink film particles is fixedly installed on one side of the top of the heating box (2), and a cutting mechanism (4) for cutting heat shrink film is fixedly installed on the other side of the top of the base plate (1). The driving mechanism (3) includes a transfer box (301) for transferring heat shrink film raw material particles. A screen plate (302) for screening heat shrink film raw material particles is fixed at the bottom inside the transfer box (301). An elevator (303) is fixedly installed on one side of the transfer box (301). A housing (304) is fixedly installed on one side of the elevator (303). Two sets of crushing rollers (305) are rotatably installed inside the housing (304). A synchronous motor (306) is fixedly installed on one side of the housing (304). A transmission mechanism (307) is fixedly installed at the output end of the synchronous motor (306), and the output end of the transmission mechanism (307) is fixedly connected to one end of the crushing roller (305). A feeding hopper (308) is fixedly installed on the top of one side of the transfer box (301). The cutting mechanism (4) includes a mounting frame (401), on the top of which two sets of electric rods (402) are fixedly mounted.

2. The melt extrusion mechanism for producing POF heat shrink film according to claim 1, characterized in that: A controller (101) is fixedly installed on the top of the base plate (1) near the heating box (2), and a display screen is fixed on the front side of the controller (101).

3. The melt extrusion mechanism for producing POF heat shrink film according to claim 1, characterized in that: A cutting blade (403) is fixedly installed at the output end of the electric rod (402). Two sets of support rods are fixedly installed on the top of the base plate (1) near the cutting mechanism (4), and auxiliary blades (404) that work with the cutting blade (403) are fixedly installed at the top of the support rods.

4. The melt extrusion mechanism for producing POF heat shrink film according to claim 1, characterized in that: A driver (201) is fixedly installed on one side of the heating box (2), and a threaded push rod (202) is fixedly installed at the output end of the driver (201). Multiple sets of heating tubes (203) are embedded in the inner wall of the heating box (2).

5. The melt extrusion mechanism for producing POF heat shrink film according to claim 4, characterized in that: An extrusion head (5) is fixedly installed on the other side of the heating box (2), and an extrusion groove (501) is provided on one side of the extrusion head (5).

6. The melt extrusion mechanism for producing POF heat shrink film according to claim 1, characterized in that: The heating box (2) has two sets of support frames (6) fixedly installed at the bottom, and the bottom of the support frames (6) is fixedly connected to the top of the base plate (1).

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