PE film blow molding device with raw material preheating function

Abstract

The utility model discloses a PE (polyethylene) film blow molding device with a raw material preheating function, which belongs to the technical field of PE film blow molding devices, and adopts the technical scheme that the PE film blow molding device comprises a heating spiral conveying barrel, and the rear side of the top of the heating spiral conveying barrel is communicated with a raw material barrel; a heating spiral conveying barrel, a raw material barrel, a feeding pipe, a heat conduction pipe, a material transferring assembly, a heating assembly and a stirring assembly are arranged, and a heating controller located on the top of the raw material barrel is controlled to control a preheating heating pipe located on the inner side of the heat conduction pipe and a high-temperature heating pipe located on the inner side of the raw material barrel to be started; the heating temperature of a preheating heating pipe and the heating temperature of a high-temperature heating pipe are controlled in real time at the same time, so that a heat conduction pipe and a raw material barrel are heated, then PE film blow molding raw materials are added into a feeding pipe and slide into the heat conduction pipe, and then the heated heat conduction pipe preheats and melts the PE film blow molding raw materials entering the heat conduction pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of PE film blowing devices, in particular to a PE film blowing device with a raw material preheating function. Background Art

[0002] Injection blow molding or injection stretch blow molding, extrusion stretch blow molding, are divided into one-shot molding and two-shot molding processes. The one-shot molding process has a high degree of automation, the clamping and indexing system of the parison requires high precision, and the production efficiency is high. The blow molding process includes the following process steps: heating the raw materials - injecting the parison - heating the parison - closing the mold, stretching and blowing, cooling and taking out the parts.

[0003] At present, the Chinese utility model with the announcement number CN220146652U discloses a PE film blowing device. This utility model discloses a PE film blowing device, which relates to the technical field of blow molding equipment, including a spiral conveying cylinder fixedly installed on a mounting seat, and also includes: a heating unit, the heating unit includes an outer frame, a heating element, a connecting piece and a contact piece, the outer frame is slidably sleeved on the outside of the spiral conveying cylinder, the heating element is arranged inside the outer frame, a pair of connecting pieces are respectively connected to the two ends of the heating element, and the contact piece is installed on the connecting piece; a heating assembly, the heating assembly is composed of several heating units; a conductive component, the conductive component includes a pair of rails and a conductive block, and the conductive block is installed in the rail. The beneficial effect of this utility model is: the distribution of the heating units can be changed as needed, more heating units are placed at the front end of the spiral conveying cylinder to obtain a better heating effect, and the number of heating units at the rear of the spiral conveying cylinder can be reduced to achieve a certain insulation effect, which can save electricity and reduce costs.

[0004] Existing PE film blowing devices often feed the raw materials at one time when melting the raw materials, and are unable to preheat and melt the subsequently added raw materials while melting the incoming raw materials. As a result, the temperature of the raw materials changes due to the addition of new raw materials when they are melted, which in turn causes agglomeration or reduces the melting efficiency, thereby affecting the quality of the PE film blowing raw materials. Therefore, a PE film blowing device with a raw material preheating function is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The utility model provides a PE film blowing device with a raw material preheating function, which aims to solve the problem that the existing PE film blowing device often feeds the raw materials at one time when melting the raw materials, and cannot preheat and melt the subsequently added raw materials while the incoming raw materials are being melted. As a result, the temperature of the raw materials changes due to the feeding of new raw materials when the raw materials are melted, which causes agglomeration or reduces the melting efficiency, thereby affecting the quality of the PE film blowing raw materials.

[0006] The utility model is implemented as follows: a PE film blowing device with a raw material preheating function comprises a heating spiral conveying cylinder, the rear side of the top of the heating spiral conveying cylinder is connected to a raw material barrel, the top of the raw material barrel is connected to a feeding pipe, the top side of the interior of the raw material barrel is fixedly connected to a heat conducting pipe, the inner sides of the heat conducting pipe and the raw material barrel are both hollow, a material transfer assembly is provided inside the heat conducting pipe, a heating assembly is provided inside the heat conducting pipe and the raw material barrel, a stirring assembly is provided inside the raw material barrel, and the stirring assembly is fixedly connected to the bottom of the material transfer assembly;

[0007] The heating assembly includes a heating controller, a preheating heating tube and a high-temperature heating tube. The heating controller is arranged on the top of the raw material barrel, the preheating heating tube is fixedly connected to the inner side of the heat conduction tube, and the high-temperature heating tube is fixedly connected to the inner side of the raw material barrel. The preheating heating tube and the high-temperature heating tube are both electrically connected to the heating controller.

[0008] In order to achieve the effect of rotating and conveying the raw materials entering the feeding pipe, a PE film blowing device with a raw material preheating function is preferred as the utility model. The material transfer assembly includes a motor, a shaft and a spiral heat-conducting blade. The motor is bolted to the top of the feeding pipe, and the output end of the motor passes through the top of the feeding pipe. The top of the shaft is bolted to the output end of the motor, and the shaft is located inside the heat-conducting pipe. The spiral heat-conducting blade is fixedly connected to the outside of the shaft, and the surface of the spiral heat-conducting blade is in contact with the inside of the heat-conducting pipe.

[0009] In order to achieve the effect of continuously stirring the melted PE film blowing raw material inside the raw material barrel, a PE film blowing device with a raw material preheating function is preferred as the utility model. The stirring assembly includes a connecting rod, an inclined rod and a stirring plate. The connecting rod is fixedly connected to the bottom of the shaft rod, the inclined rod is respectively fixedly connected to both sides of the connecting rod, and the stirring plate is fixedly connected to the inner side of the inclined rod.

[0010] In order to achieve the effect of supporting the heating spiral conveyor cylinder to facilitate processing and use, as a preferred PE film blowing device with raw material preheating function of the utility model, the bottom of the heating spiral conveyor cylinder is bolted with a base, and fixing holes are opened on both sides of the front and rear sides of the top of the base.

[0011] In order to further enhance the effect of increasing the storage capacity when feeding the feeding pipe, a PE film blowing device with a raw material preheating function is preferably provided in the present invention, wherein the top of the feeding pipe is connected to a feeding hopper, and the feeding hopper is conical in shape.

[0012] In order to achieve the effect of protective shielding when the feeding hopper is not feeding, as a preferred PE film blowing device with raw material preheating function of the utility model, the top of the feeding hopper is provided with a cover, and the bottom of the cover is clamped on the top side of the inside of the feeding hopper.

[0013] In order to facilitate the user to lift and use the cover, a PE film blowing device with a raw material preheating function is preferably provided in the present invention, wherein a handle is bolted to the top of the cover, and the surface of the handle is provided with anti-slip grooves.

[0014] In order to achieve the effect of diverting the melted PE film blowing raw material when the stirring plate stirs it, a PE film blowing device with raw material preheating function is preferably used in the present invention, and a diversion hole is opened on the outer side of the stirring plate, and the diversion hole is a circular hole groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The PE film blowing device with raw material preheating function is provided with a heating spiral conveying cylinder, a raw material barrel, a feeding pipe, a heat conducting pipe, a material transfer assembly, a heating assembly and a stirring assembly. The heating controller located on the top of the raw material barrel controls the preheating heating pipe located inside the heat conducting pipe and the high-temperature heating pipe inside the raw material barrel to start, and simultaneously controls the heating temperatures of the preheating heating pipe and the high-temperature heating pipe in real time, so that the heat conducting pipe and the raw material barrel are both heated. Then, the PE film blowing raw material is added into the feeding pipe and then slid into the inside of the heat conducting pipe. Then, the heated heat conducting pipe preheats and melts the PE film blowing raw material entering the heat conducting pipe. During this process, the raw materials continue to enter the heat conduction tube, so as to melt the raw materials that enter first and preheat and melt the raw materials that are added subsequently, thereby avoiding the temperature change caused by adding new raw materials, thereby improving the melting efficiency. Then, the stirring component at the bottom of the material transfer component is driven to stir the PE film blowing raw materials that fall into the raw material barrel after melting. The overall coordination can improve the quality of the PE film blowing raw materials, and then the raw materials enter the heating spiral conveyor for continuous heating, transportation and preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural diagram of the PE film blowing device with raw material preheating function of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the heating spiral conveying cylinder in the present invention;

[0019] Figure 3This is a schematic structural diagram of the transfer material assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the heating component in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the stirring component in the present utility model.

[0022] In the figure, 1. Heating screw conveyor; 2. Raw material barrel; 3. Feeding pipe; 4. Heat conduction pipe; 5. Material transfer assembly; 501. Motor; 502. Shaft; 503. Spiral heat conduction blade; 6. Heating assembly; 601. Heating controller; 602. Preheating heating pipe; 603. High-temperature heating pipe; 7. Stirring assembly; 701. Connecting rod; 702. Inclined rod; 703. Stirring plate; 8. Base; 9. Feeding hopper; 10. Cover; 11. Handle; 12. Diverter hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0025] See also Figure 1-5 The utility model provides a technical solution: a PE film blowing device with a raw material preheating function, comprising a heating spiral conveying cylinder 1, the rear side of the top of the heating spiral conveying cylinder 1 is connected to a raw material barrel 2, the top of the raw material barrel 2 is connected to a feeding pipe 3, the top side of the interior of the raw material barrel 2 is fixedly connected to a heat conducting pipe 4, the inner sides of the heat conducting pipe 4 and the raw material barrel 2 are both cavities, a material transfer assembly 5 is provided inside the heat conducting pipe 4, a heating assembly 6 is provided inside the heat conducting pipe 4 and the raw material barrel 2, a stirring assembly 7 is provided inside the raw material barrel 2, and the stirring assembly 7 is fixedly connected to the bottom of the material transfer assembly 5;

[0026] The heating assembly 6 includes a heating controller 601, a preheating heating tube 602 and a high-temperature heating tube 603. The heating controller 601 is arranged on the top of the raw material barrel 2, the preheating heating tube 602 is fixedly connected to the inner side of the heat conduction tube 4, and the high-temperature heating tube 603 is fixedly connected to the inner side of the raw material barrel 2. The preheating heating tube 602 and the high-temperature heating tube 603 are both electrically connected to the heating controller 601.

[0027] In this embodiment: by setting a heating spiral conveying cylinder 1, a raw material barrel 2, a feeding pipe 3, a heat conducting pipe 4, a material transfer assembly 5, a heating assembly 6 and a stirring assembly 7, the heating controller 601 located at the top of the raw material barrel 2 controls the preheating heating pipe 602 located inside the heat conducting pipe 4 and the high-temperature heating pipe 603 inside the raw material barrel 2 to start, and at the same time controls the heating temperature of the preheating heating pipe 602 and the high-temperature heating pipe 603 in real time, so that the heat conducting pipe 4 and the raw material barrel 2 are heated, and then the PE film blowing raw material is added to the feeding pipe 3 and then slides to the inside of the heat conducting pipe 4, and then the heated heat conducting pipe 4 controls the PE film blowing raw material entering the heat conducting pipe 4 It is preheated and melted, and then it is rotated downward through the material transfer component 5 to separate from the inside of the heat conduction pipe 4 and fall into the raw material barrel 2. During this process, the raw material continues to enter the inside of the heat conduction pipe 4, so as to achieve the melting of the raw material that enters first and the preheating and melting of the raw material added subsequently, thereby avoiding the temperature change caused by the addition of new raw materials, thereby improving the melting efficiency. Then, the stirring component 7 at the bottom of the material transfer component 5 is driven to stir the PE film blowing raw material that falls into the raw material barrel 2 after melting. The overall cooperation can improve the quality of the PE film blowing raw material, and then the raw material enters the heating spiral conveying cylinder 1 for continuous heating, transportation and preparation.

[0028] As a technical optimization solution of the present invention, the material transfer assembly 5 includes a motor 501, a shaft 502 and a spiral heat-conducting blade 503. The motor 501 is bolted to the top of the feeding tube 3, and the output end of the motor 501 passes through the top of the feeding tube 3. The top of the shaft 502 is bolted to the output end of the motor 501. The shaft 502 is located inside the heat-conducting tube 4. The spiral heat-conducting blade 503 is fixedly connected to the outside of the shaft 502, and the surface of the spiral heat-conducting blade 503 is in contact with the inside of the heat-conducting tube 4.

[0029] In this embodiment, a motor 501, a shaft 502 and spiral heat-conducting blades 503 are provided, and the heated heat-conducting tube 4 preheats and melts the PE film blowing raw material entering the heat-conducting tube 4. Then, the started motor 501 drives the shaft 502 and the spiral heat-conducting blades 503 to rotate inside the heat-conducting tube 4, so that the spiral heat-conducting blades 503 separate the melted PE film blowing raw material from the inside of the heat-conducting tube 4 and drop it into the raw material barrel 2.

[0030] As a technical optimization solution of the present invention, the stirring assembly 7 includes a connecting rod 701, an inclined rod 702 and a stirring plate 703. The connecting rod 701 is fixedly connected to the bottom of the shaft 502, the inclined rod 702 is fixedly connected to both sides of the connecting rod 701, and the stirring plate 703 is fixedly connected to the inner side of the inclined rod 702.

[0031] In this embodiment: by providing a connecting rod 701, an inclined rod 702 and a stirring plate 703, the connecting rod 701 located at the bottom of the shaft 502 synchronously drives the inclined rod 702 and the stirring plate 703 to stir the PE film blowing raw material that falls into the raw material barrel 2 after melting, and the overall coordination is used to improve the quality of the PE film blowing raw material, and then the raw material enters the heating spiral conveying cylinder 1 for continuous heating, transportation and preparation.

[0032] As a technical optimization solution of the present invention, the bottom of the heating spiral conveying cylinder 1 is bolted with a base 8, and fixing holes are opened on both sides of the front and rear sides of the top of the base 8.

[0033] In this embodiment, by providing a base 8, the heating spiral conveying cylinder 1 can be supported to facilitate processing and use.

[0034] As a technical optimization solution of the present invention, the top of the feeding pipe 3 is connected to a feeding hopper 9, and the feeding hopper 9 is conical in shape.

[0035] In this embodiment, by providing the feeding hopper 9, the effect of increasing the storage capacity when feeding the feeding pipe 3 can be further improved, so as to facilitate use.

[0036] As a technical optimization solution of the present invention, a cover 10 is provided on the top of the feeding hopper 9 , and the bottom of the cover 10 is snap-connected to the top side of the inside of the feeding hopper 9 .

[0037] In this embodiment, the cover 10 is provided to provide a protective shielding effect when the feeding hopper 9 is not feeding any material, thereby facilitating use.

[0038] As a technical optimization solution of the present invention, a pull handle 11 is bolted to the top of the cover 10 , and the surface of the pull handle 11 is provided with anti-slip lines.

[0039] In this embodiment, the handle 11 is provided to facilitate the user to lift the cover 10 for use, thereby facilitating use.

[0040] As a technical optimization solution of the present invention, a diversion hole 12 is opened on the outer side of the stirring plate 703, and the diversion hole 12 is a circular hole groove.

[0041] In this embodiment, by providing the diversion hole 12, the stirring plate 703 can achieve the effect of diversion when stirring the melted PE film blowing raw material, so as to facilitate use.

[0042] Working principle: First, the heating controller 601 located on the top of the raw material barrel 2 controls the preheating heating tube 602 located inside the heat conducting tube 4 and the high-temperature heating tube 603 inside the raw material barrel 2 to start, and at the same time controls the heating temperature of the preheating heating tube 602 and the high-temperature heating tube 603 in real time, so that the heat conducting tube 4 and the raw material barrel 2 are heated, and then the PE film blowing raw material is added to the feeding tube 3 and then slid into the inside of the heat conducting tube 4, and then the heated heat conducting tube 4 preheats and melts the PE film blowing raw material entering the heat conducting tube 4, and then the started motor 501 drives the shaft 502 and the spiral heat conducting blade 503 to rotate inside the heat conducting tube 4, so that the spiral The rotating heat-conducting blades 503 separate the melted PE film blowing raw material from the inside of the heat-conducting tube 4 and drop it into the raw material barrel 2. During this process, raw materials continue to enter the inside of the heat-conducting tube 4, thereby cooperating to melt the raw materials that enter first while preheating and melting the raw materials added subsequently, thereby avoiding the temperature change caused by the addition of new raw materials, thereby improving the melting efficiency. Then, the connecting rod 701 at the bottom of the shaft 502 synchronously drives the inclined rod 702 and the stirring plate 703 to stir the PE film blowing raw material that falls into the raw material barrel 2 after melting. The overall cooperation can improve the quality of the PE film blowing raw material, and then the raw material enters the heating spiral conveying cylinder 1 for continuous heating, transportation and preparation.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PE film blowing device with a raw material preheating function, comprising a heating screw conveyor cylinder (1), characterized in that: The rear side of the top of the heating spiral conveying cylinder (1) is connected to the raw material barrel (2), the top of the raw material barrel (2) is connected to the feeding pipe (3), the top side of the interior of the raw material barrel (2) is fixedly connected to a heat conducting pipe (4), the inner sides of the heat conducting pipe (4) and the raw material barrel (2) are both cavities, a material transfer assembly (5) is provided inside the heat conducting pipe (4), the inner sides of the heat conducting pipe (4) and the raw material barrel (2) are both provided with a heating assembly (6), a stirring assembly (7) is provided inside the raw material barrel (2), and the stirring assembly (7) is fixedly connected to the bottom of the material transfer assembly (5); The heating assembly (6) comprises a heating controller (601), a preheating heating tube (602) and a high-temperature heating tube (603); the heating controller (601) is arranged on the top of the raw material barrel (2); the preheating heating tube (602) is fixedly connected to the inner side of the heat conducting tube (4); the high-temperature heating tube (603) is fixedly connected to the inner side of the raw material barrel (2); and the preheating heating tube (602) and the high-temperature heating tube (603) are both electrically connected to the heating controller (601).

2. The PE film blowing device with raw material preheating function according to claim 1, characterized in that: The material transfer assembly (5) comprises a motor (501), a shaft (502) and a spiral heat-conducting blade (503), wherein the motor (501) is bolted to the top of the feeding tube (3), the output end of the motor (501) passes through the top of the feeding tube (3), the top of the shaft (502) is bolted to the output end of the motor (501), the shaft (502) is located inside the heat-conducting tube (4), the spiral heat-conducting blade (503) is fixedly connected to the outside of the shaft (502), and the surface of the spiral heat-conducting blade (503) is in contact with the inside of the heat-conducting tube (4).

3. The PE film blowing device with raw material preheating function according to claim 1, characterized in that: The stirring assembly (7) comprises a connecting rod (701), an inclined rod (702) and a stirring plate (703), wherein the connecting rod (701) is fixedly connected to the bottom of the shaft rod (502), the inclined rod (702) is fixedly connected to both sides of the connecting rod (701), and the stirring plate (703) is fixedly connected to the inner side of the inclined rod (702).

4. The PE film blowing device with raw material preheating function according to claim 1, characterized in that: The bottom of the heating spiral conveying cylinder (1) is bolted to a base (8), and fixing holes are provided on both sides of the front and rear sides of the top of the base (8).

5. The PE film blowing device with raw material preheating function according to claim 1, characterized in that: The top of the feeding pipe (3) is connected to a feeding hopper (9), and the feeding hopper (9) is conical in shape.

6. The PE film blowing device with raw material preheating function according to claim 5, characterized in that: A sealing cover (10) is provided on the top of the feeding hopper (9), and the bottom of the sealing cover (10) is clamped on the top side of the inside of the feeding hopper (9).

7. The PE film blowing device with raw material preheating function according to claim 6, characterized in that: A handle (11) is bolted to the top of the cover (10), and the surface of the handle (11) is provided with anti-slip lines.

8. The PE film blowing device with raw material preheating function according to claim 3, characterized in that: A diversion hole (12) is provided on the outer side of the stirring plate (703), and the diversion hole (12) is a circular hole groove.

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