Plastic extruder with heat supply structure

Abstract

The utility model relates to the technical field of plastic extruders, in particular to a plastic extruder with a heat supply structure, which comprises an extruder body, a cover plate is arranged at the upper end of a stirring cylinder, a motor is arranged on the upper surface of the cover plate, a rotating shaft is arranged on the lower surface of the motor, and spiral blades are spirally arranged on the surface of the rotating shaft. A plurality of first heating pipes are arranged in the extruder body, the first heating pipes are mounted on the inner wall of the stirring cylinder through detachable devices, cleaning holes are formed in the surface of the cover plate, and a drainage pipe is arranged on the lower part of the surface of the stirring cylinder. By means of the cleaning holes, high-pressure water flow can be conveniently introduced through the cleaning holes for cleaning, the spiral blade and the first heating pipe can be cleaned, then the cleaned water flow is discharged along the drainage pipe by opening the first electromagnetic valve, and the situation that condensed material films are attached to the surface of the first heating pipe after multiple times of feeding in the stirring cylinder is avoided; therefore, the heat dissipation effect of the first heating pipe is not poor.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic extruders, in particular to a plastic extruder with a heating structure. Background Art

[0002] In plastic extrusion equipment, plastic extruder is usually called the main machine, and the subsequent equipment plastic extrusion molding machine is called the auxiliary machine. After more than 100 years of development, plastic extruder has evolved from the original single screw to twin screw, multi-screw, and even screwless models. Plastic extruder can be matched with various plastic molding auxiliary machines such as pipes, films, holding materials, monofilaments, flat wires, strapping tapes, extruded nets, plates (sheets), profiles, granulation, cable coating, etc., to form various plastic extrusion molding production lines and produce various plastic products. Therefore, plastic extrusion molding machinery is one of the widely used machines in the plastic processing industry, whether now or in the future.

[0003] For example, the authorization announcement number "CN220904063U" is named a plastic extruder with a heating device. Although the heating state is maintained by rotating the heating tube, and a mesh plate is set in the feeding cover, the mesh plate can be heated by fixing the heating tube to maintain a high temperature state. The input material can be heated and processed, and after liquefaction, it flows downward through the hole into the extrusion bin body, which can maintain a uniform heating state, so that the material can be extruded and formed at a constant temperature, and has a good use effect. However, the rotating heating tube and the first spiral blade are not convenient to clean. After multiple feedings, the surface of the rotating heating tube will adhere to the condensed material film, which will cause the heat dissipation effect of the rotating heating tube to be poor; at the same time, it is also difficult to disassemble and replace the rotating heating tube blades. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a plastic extruder with a heating structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plastic extruder with a heating structure is designed, comprising an extruder body, a cavity is provided inside the extruder body, a cylinder is provided on one side surface of the extruder body, a plurality of supporting feet are provided at the lower end of the extruder body, a telescopic rod is provided on one side surface of the cylinder, one end of the telescopic rod penetrates through one side surface of the extruder body and is provided with a push plate, a stirring cylinder is provided on the upper surface of the extruder body, a feeding cylinder is provided on one side surface of the stirring cylinder, a feeding heating component is provided on the inner wall of the feeding cylinder, the feeding cylinder is connected with the extruder body, a cover plate is provided on the upper end of the stirring cylinder, a motor is provided on the upper surface of the cover plate, a rotating shaft is provided on the lower surface of the motor, the lower end of the rotating shaft penetrates through the cover plate, a spiral blade is provided on the surface of the rotating shaft in a spiral shape, a supporting groove is provided on the lower inner wall of the extruder body, and a feeding cylinder is provided on the lower end of the rotating shaft. Extending into the support groove, a plurality of first heating tubes are arranged inside the extruder body, and the plurality of first heating tubes are electrically connected. The first heating tube is installed on the inner wall of the mixing cylinder through a detachable device. A cleaning hole is arranged on the surface of the cover plate, and a sealing plug is arranged inside the cleaning hole. A drain pipe is arranged on the lower part of the surface of the mixing cylinder, and the drain pipe is connected with the inside of the extruder body. A first solenoid valve is arranged on the surface of the drain pipe. A first feed through hole is arranged on the lower surface of the mixing cylinder and the upper surface of the extruder body, and the two first feed through holes are connected. A second solenoid valve is arranged inside the first feed through hole. A discharge port is arranged on the inner wall of one side of the cavity, and an extrusion mold is sleeved on the outside of the extruder body. A molding material port is arranged on the surface of the extrusion mold, and the molding material port is connected with the discharge port.

[0007] Preferably, the feed heating assembly comprises a feed support block, a plurality of second heating tubes are arranged inside the feed support block, a plurality of second feed through holes are arranged on the surface of the feed support block, and the plurality of second feed through holes are arranged at intervals from the plurality of second heating tubes.

[0008] Preferably, the detachable device includes a heating connecting plate, the lower surface of which is connected to the upper ends of multiple first heating tubes, the heating connecting plate is arranged at the upper end of the mixing cylinder, the inner wall of the mixing cylinder is provided with multiple mounting grooves, the multiple mounting grooves correspond one-to-one to the multiple first heating tubes, and the first heating tubes are arranged inside the mounting grooves.

[0009] Preferably, a leveling block is provided between the extruder body and the mixing cylinder, and the upper surface of the leveling block is a horizontal plane.

[0010] Preferably, a fixing block is provided in an annular shape on the inner wall of the cavity, a fixing hole is provided on the surface of the fixing block, a plurality of limiting rods are provided between the inner wall on one side of the cavity and the surface on one side of the fixing block, and the plurality of limiting rods all penetrate the push plate.

[0011] Preferably, the push plate is provided with a sealing rubber ring in an annular shape.

[0012] The utility model proposes a plastic extruder with a heating structure, which has the beneficial effects of: a cleaning hole is provided, through which a high-pressure water flow can be conveniently introduced for cleaning, so that the spiral blade and the first heating tube can be cleaned, and then the first solenoid valve is opened to discharge the cleaned water flow along the drain pipe, so as to avoid the adhesion of a condensed material film on the surface of the first heating tube after multiple additions inside the mixing cylinder, so as not to cause poor heat dissipation effect of the first heating tube; at the same time, by disassembling the mixing cylinder, the mixing cylinder can be taken out as a whole, which is convenient for its maintenance; a detachable device is provided, after the cover plate is disassembled, the heating connecting plate is then taken out of the mixing cylinder, and then the first heating tube is pulled, so as to facilitate cleaning and replacement of the first heating tube after it is taken out, and it is also relatively easy to disassemble and replace the first heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front cross-sectional view of the utility model;

[0014] Figure 2 It is a left-side structural diagram of the utility model;

[0015] Figure 3 This is a top view of the structure of the mixing cylinder of the utility model;

[0016] Figure 4 This is an enlarged view of position A of the utility model;

[0017] Figure 5 It is an enlarged view of position B of the present utility model.

[0018] In the figure: extruder body 1, cavity 2, cylinder 3, supporting foot 4, telescopic rod 5, push plate 6, stirring cylinder 7, feeding cylinder 8, cover plate 9, motor 10, rotating shaft 11, spiral blade 12, supporting groove 13, first heating tube 14, cleaning hole 15, sealing plug 16, drain pipe 17, first solenoid valve 18, first feed through hole 19, second solenoid valve 20, discharge port 21, extrusion mold 22, molding material port 23, feed support block 24, second heating tube 25, second feed through hole 26, mounting groove 27, heating connecting plate 28, leveling block 29, fixing block 30, fixing hole 31, limiting rod 32, sealing rubber ring 33. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-5A plastic extruder with a heating structure includes an extruder body 1, a cavity 2 is provided inside the extruder body 1, a cylinder 3 is provided on one side surface of the extruder body 1, and a plurality of supporting feet 4 are provided at the lower end of the extruder body 1, and the plurality of supporting feet 4 are convenient for installing the extruder body 1. A telescopic rod 5 is provided on one side surface of the cylinder 3, and one end of the telescopic rod 5 passes through the one side surface of the extruder body 1 and is provided with a push plate 6. A stirring cylinder 7 is provided on the upper surface of the extruder body 1, and the stirring cylinder 7 can be taken out as a whole by disassembling the stirring cylinder 7, which is convenient for maintenance. A feeding cylinder 8 is provided on one side surface of the stirring cylinder 7, and a feed heating assembly is provided on the inner wall of the feeding cylinder 8, and the feed heating assembly includes a feed support block 24, and a plurality of second heating pipes 25 are provided inside the feed support block 24, and a plurality of second feeding through holes 26 are provided on the surface of the feed support block 24, and the plurality of second feeding through holes 26 are arranged at intervals with the plurality of second heating pipes 25. The second heating pipe 25 is convenient for heating the feed, and at the same time, the feed can enter the feeding cylinder 8 through the second feeding through hole 26, and then enter the inside of the stirring cylinder 7.

[0021] The feeding cylinder 8 is connected to the extruder body 1, and a cover plate 9 is provided at the upper end of the stirring cylinder 7, and the cover plate 9 can be threadedly connected to the stirring cylinder 7 by bolts. A motor 10 is provided on the upper surface of the cover plate 9, and a rotating shaft 11 is provided on the lower surface of the motor 10. The lower end of the rotating shaft 11 passes through the cover plate 9, and a spiral blade 12 is spirally provided on the surface of the rotating shaft 11. A support groove 13 is provided on the lower inner wall of the extruder body 1, and the lower end of the rotating shaft 11 extends into the supporting groove 13. The motor 10 is fixed to the cover plate 9, and the motor 10 is started to rotate the rotating shaft 11. The lower end of the rotating shaft 11 is pressed against the lower inner wall of the supporting groove 13, so that the rotating shaft 11 can rotate more stably. A plurality of first heating tubes 14 are provided inside the extruder body 1, and the plurality of first heating tubes 14 are electrically connected. The first heating tube 14 is annularly arranged on the inner wall of the stirring cylinder 7, so that heat can be evenly transferred to the raw materials in the stirring cylinder 7. The first heating tube 14 is installed on the inner wall of the mixing tank 7 through a detachable device, and the detachable device includes a heating connection plate 28, and the lower surface of the heating connection plate 28 is connected to the upper ends of multiple first heating tubes 14. The heating connection plate 28 is set at the upper end of the mixing tank 7. The inner wall of the mixing tank 7 is provided with multiple installation grooves 27, and the multiple installation grooves 27 correspond to the multiple first heating tubes 14 one by one. The first heating tube 14 is set inside the installation grooves 27. After the cover plate 9 is disassembled, the heating connection plate 28 is then taken out of the mixing tank 7, and then the first heating tube 14 is pulled, which is convenient for cleaning and replacing the first heating tube 14 after being taken out, and it is also relatively easy to disassemble and replace the first heating tube 14.

[0022] A cleaning hole 15 is provided on the surface of the cover plate 9, and a sealing plug 16 is provided inside the cleaning hole 15. When it is necessary to clean the inside of the mixing cylinder 7, the sealing plug 16 can be taken out and the high-pressure water flow can be introduced from the cleaning hole 15. A drain pipe 17 is provided on the lower part of the surface of the mixing cylinder 7, and the drain pipe 17 is connected to the inside of the extruder body 1. A first solenoid valve 18 is provided on the surface of the drain pipe 17. A first feed through hole 19 is provided on the lower surface of the mixing cylinder 7 and the upper surface of the extruder body 1. The two first feed through holes 19 are connected. A second solenoid valve 20 is provided inside the first feed through hole 19. A discharge port 21 is provided on the inner wall of one side of the cavity 2. An extrusion mold 22 is sleeved on the outside of the extruder body 1. A molding material port 23 is provided on the surface of the extrusion mold 22, and the molding material port 23 is connected to the discharge port 21. The cleaning hole 15 is provided to facilitate the introduction of high-pressure water flow for cleaning, so as to clean the spiral blade 12 and the first heating tube 14, and then the first solenoid valve 18 is opened to allow the cleaned water flow to be discharged along the drain pipe 17, so as to avoid the adhesion of condensed material film on the surface of the first heating tube 14 after multiple additions inside the mixing tank 7, so as not to cause poor heat dissipation effect of the first heating tube 14.

[0023] A leveling block 29 is provided between the extruder body 1 and the mixing cylinder 7 , and the upper surface of the leveling block 29 is a horizontal surface, which facilitates the installation and disassembly of the mixing cylinder 7 .

[0024] A fixing block 30 is provided in an annular shape on the inner wall of the cavity 2, a fixing hole 31 is provided on the surface of the fixing block 30, and a plurality of limiting rods 32 are provided between the inner wall of one side of the cavity 2 and the surface of one side of the fixing block 30, and the plurality of limiting rods 32 all penetrate the push plate 6. The plurality of limiting rods 32 can play a limiting role to prevent the push plate 6 from tilting when the telescopic rod 5 pushes the push plate 6.

[0025] The push plate 6 is provided with a sealing rubber ring 33 in an annular shape, which can increase the sealing performance, so that the raw materials can be fully squeezed, and it is convenient to push the raw materials toward the discharge port 21.

[0026] Working principle: first, add the raw materials through the feeding cylinder 8, the raw materials enter the interior of the mixing cylinder 7, start the motor 10, rotate the rotating shaft 11, and then drive the spiral blade 12 to rotate, so that the raw materials are fully stirred. When the stirring is sufficient, the second solenoid valve 20 can be opened, and the raw materials enter the extruder body 1 through the first feed through hole 19, close the second solenoid valve 20, and then start the cylinder 3 to extend the telescopic rod 5, push the raw materials through the push plate 6, and the raw materials are formed and extruded through the discharge port 21 and the molding port 23.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic extruder with a heating structure, comprising an extruder body (1), It is characterized in that The extruder body (1) has a cavity (2) inside, a cylinder (3) is provided on one side surface of the extruder body (1), a plurality of supporting legs (4) are provided at the lower end of the extruder body (1), a telescopic rod (5) is provided on one side surface of the cylinder (3), one end of the telescopic rod (5) passes through one side surface of the extruder body (1) and is provided with a push plate (6), a stirring cylinder (7) is provided on the upper surface of the extruder body (1), a feeding cylinder (8) is provided on one side surface of the stirring cylinder (7), and an inlet is provided on the inner wall of the feeding cylinder (8). The feeding cylinder (8) is connected to the extruder body (1), the upper end of the stirring cylinder (7) is provided with a cover plate (9), the upper surface of the cover plate (9) is provided with a motor (10), the lower surface of the motor (10) is provided with a rotating shaft (11), the lower end of the rotating shaft (11) passes through the cover plate (9), the surface of the rotating shaft (11) is spirally provided with spiral blades (12), the lower inner wall of the extruder body (1) is provided with a supporting groove (13), the lower end of the rotating shaft (11) extends into the supporting groove (13), and the extruder body (1) is provided with a supporting groove (13). A plurality of first heating tubes (14) are provided inside the extruder body (1), and the plurality of first heating tubes (14) are electrically connected. The first heating tubes (14) are installed on the inner wall of the stirring cylinder (7) through a detachable device. A cleaning hole (15) is provided on the surface of the cover plate (9), and a sealing plug (16) is provided inside the cleaning hole (15). A drainage pipe (17) is provided under the surface of the stirring cylinder (7), and the drainage pipe (17) is communicated with the interior of the extruder body (1). A first solenoid valve is provided on the surface of the drainage pipe (17). (18), the lower surface of the mixing cylinder (7) and the upper surface of the extruder body (1) are both provided with a first feed through hole (19), the two first feed through holes (19) are connected, a second solenoid valve (20) is provided inside the first feed through hole (19), an inner wall of one side of the cavity (2) is provided with a discharge port (21), an extrusion mold (22) is sleeved on the outside of the extruder body (1), a molding material port (23) is provided on the surface of the extrusion mold (22), and the molding material port (23) is connected to the discharge port (21).

2. A plastic extruder with a heating structure according to claim 1, It is characterized in that The feed heating assembly comprises a feed support block (24), a plurality of second heating tubes (25) are arranged inside the feed support block (24), a plurality of second feed through holes (26) are arranged on the surface of the feed support block (24), and the plurality of second feed through holes (26) and the plurality of second heating tubes (25) are arranged at intervals.

3. A plastic extruder with a heating structure according to claim 1, It is characterized in that The detachable device comprises a heating connection plate (28), the lower surface of the heating connection plate (28) being connected to the upper ends of a plurality of first heating tubes (14), the heating connection plate (28) being arranged at the upper end of a stirring cylinder (7), the inner wall of the stirring cylinder (7) being provided with a plurality of mounting grooves (27), the plurality of mounting grooves (27) corresponding one-to-one to the plurality of first heating tubes (14), and the first heating tubes (14) being arranged inside the mounting grooves (27).

4. A plastic extruder with a heating structure according to claim 1, It is characterized in that A leveling block (29) is provided between the extruder body (1) and the mixing cylinder (7), and the upper surface of the leveling block (29) is a horizontal plane.

5. A plastic extruder with a heating structure according to claim 1, It is characterized in that A fixing block (30) is provided in an annular shape on the inner wall of the cavity (2), a fixing hole (31) is provided on the surface of the fixing block (30), and a plurality of limiting rods (32) are provided between the inner wall of one side of the cavity (2) and the surface of one side of the fixing block (30), and the plurality of limiting rods (32) all penetrate the push plate (6).

6. A plastic extruder with a heating structure according to claim 5, It is characterized in that The push plate (6) is provided with a sealing rubber ring (33) in an annular shape.

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