A PE pipe film covering device with pretreatment function and good adhesion

Abstract

The present invention relates to the technical field of PE pipeline production equipment, and in particular to a PE pipeline coating device with a pretreatment function and good adhesion. The machine body is composed of a bottom plate and an arched platform; a conical cylinder is connected to the front end opening of the machine body; an assembly seat is arranged on the bottom plate of the machine body; a cleaning part is arranged on the top of the machine body; and a coating part is arranged on a gear ring. Through the arrangement of the cleaning part and the coating part, firstly, the cleaning agent is delivered to the injection pipe by an infusion pump to efficiently flush the pipeline, thoroughly remove surface impurities and dirt, and provide a clean surface for the coating operation to realize the pretreatment operation of the pipeline. Then, through the coordinated work of the pressure roller and the electric heating roller, and the synchronous adjustment of the connecting rod one and the connecting rod two, the film material and the pipeline are kept at an appropriate distance to ensure the appropriate tension during the coating process. Then, the pressure roller effectively exhausts air bubbles, and the electric heating roller heats and strengthens the adhesion between the film material and the pipeline, so that the adhesion between the pipeline and the film material is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of PE pipe production equipment, and in particular to a PE pipe film coating device with a pretreatment function and good adhesion. Background Art

[0002] Polyethylene (PE) pipes are widely used in many industries due to their excellent physical and chemical properties. In order to further protect PE pipes from external environmental factors, a protective film is usually covered on the outer surface of the pipe to prevent corrosion, improve wear resistance and improve appearance quality.

[0003] After searching, according to the patent authorization announcement number CN114953426B, a film coating device for PE pipe production has certain limitations in practical application:

[0004] 1. The film coating operation on the outside of the pipeline is realized by adopting a symmetrically arranged film winding roller. However, due to the lack of the necessary tension adjustment function, bubbles are easily formed during the coating process, which not only affects the close fit between the film material and the pipeline, but also may lead to a decrease in the coating quality;

[0005] 2. The device is equipped with a cleaning mechanism, which removes impurities on the outer surface of the pipe through the coordinated action of multiple components. However, since it uses a rag wiping method, it is limited in its effect on cleaning fine dust, grease residue or moisture traces. These tiny pollution sources will seriously affect the adhesion performance of the coating material, further weakening the overall quality of the finished pipe. Summary of the invention

[0006] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a PE pipe film coating device with a pretreatment function and good adhesion, comprising:

[0007] The machine body is composed of a bottom plate and an arched platform. A channel extending in the front-rear direction is provided in the arched platform of the machine body. A sealing ring is symmetrically arranged in the channel of the machine body. A drain pipe for draining waste liquid is also connected inside the machine body.

[0008] A conical cylinder is connected to the front opening of the machine body, and a sponge block for wiping the pipeline is arranged inside the conical cylinder;

[0009] An assembly seat is arranged on the bottom plate of the machine body, and a fixedly installed electric gear set 1 and a rotatably connected gear ring are arranged on the assembly seat, the gear ring is meshed with the gear of the electric gear set 1, and the gear ring is located at the front side of the arched platform of the machine body and the two are arranged concentrically;

[0010] The cleaning part is arranged on the top of the machine body, and the cleaning part includes an infusion pump installed on the arched platform of the machine body. The arched platform of the machine body is also provided with a plurality of spray pipes at intervals along the circumferential direction. The spray nozzles of the spray pipes are placed in the channel of the machine body, and connecting pipes are connected between the spray pipes, and one of the connecting pipes is connected to the water outlet of the infusion pump;

[0011] The coating part is arranged on the gear ring, and the coating part includes a mounting seat arranged on the gear ring, a winding drum for placing a film roll is rotatably arranged on the mounting seat, a blocking cover is inserted at the end of the winding drum, a connecting rod 1 is also hingedly arranged on one side of the mounting seat, a tension spring is arranged between the connecting rod 1 and the mounting seat, and a pressure roller in the same direction as the winding drum is rotatably arranged on the connecting rod 1, and a connecting rod 2 is also hingedly arranged at the end of the connecting rod 1, and an electric heating roller on the same side as the pressure roller is rotatably arranged on the connecting rod 2.

[0012] Preferably, it also includes electromagnets arranged on both sides of the winding drum, and the electromagnets are located inside the mounting seat to restrain the rotation of the winding drum.

[0013] Preferably, a drying section for drying and preheating the pipeline is provided on the bottom plate of the machine body, and the drying section includes a high-temperature dryer installed on the bottom plate of the machine body, a spray gun passing through the sponge block is provided on the conical cylinder, a conveying pipe is connected between the spray gun and the air outlet of the high-temperature dryer, and a one-way pipe for draining liquid is connected between the sponge block and the lower side of the conical cylinder.

[0014] Preferably, a groove is provided in the middle of the sponge block so that both ends of the sponge block form convex shapes, and the spray gun and the one-way tube are both placed in the groove of the sponge block.

[0015] Preferably, a pushing part for pushing the movement of the pipeline is provided at the rear end opening of the machine body, and the pushing part includes a swivel ring 1 rotatably arranged at the rear end of the machine body arch platform, a swivel ring 2 rotatably arranged on the swivel ring 1, the swivel ring 2, the swivel ring 1 and the machine body arch platform are arranged in a concentric layout, and a fixing part for fixing the position after rotation is provided between the swivel ring 2 and the swivel ring 1, at least two inclined blocks are provided at circumferential intervals on the inner ring of the swivel ring 2, and mounting plates with the same number and layout as the inclined blocks are provided at circumferential intervals on the rear side of the swivel ring 1, and convex rods that contact and cooperate with adjacent inclined blocks are penetrated and slidably provided on the mounting plates, and the ends of the convex rods are connected to sliding frames that slidably cooperate with the swivel ring 1, and electric rollers for fitting the pipeline are rotatably provided on the sliding frames.

[0016] Preferably, the driving part further comprises an electric gear set 2 arranged on the rotating ring 1, and a gear ring meshing with the gear of the electric gear set 2 is circumferentially arranged on the arched platform of the machine body to drive the rotation operation of the inserted pipe.

[0017] Preferably, the fixing member comprises an insert rod inserted on the second end of the swivel, and a plug hole for plugging and cooperating with the insert rod is provided on the first swivel.

[0018] Preferably, the gears of the electric gear set 1 and the electric gear set 2 rotate in opposite directions to adapt to the coating operation of the pipeline.

[0019] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects:

[0020] 1. The present invention, through the arrangement of the cleaning part and the coating part, firstly uses the infusion pump to deliver the cleaning agent to the injection pipe, so as to efficiently flush the moving pipeline, thoroughly remove surface impurities and dirt, provide a clean surface for the coating operation, realize the pretreatment operation of the pipeline, and lay the foundation for the subsequent coating effect of the pipeline. Then, through the coordinated work of the pressure roller and the electric heating roller, and the synchronous adjustment of the connecting rod 1 and the connecting rod 2, the appropriate distance between the film material and the pipeline is maintained to ensure the appropriate tension during the coating process. Then, the pressure roller effectively exhausts air bubbles, and the electric heating roller heats and strengthens the adhesion between the film material and the pipeline, so that the fit between the pipeline and the film material is greatly improved, thereby improving the overall coating quality and efficiency.

[0021] 2. The present invention adopts a high-temperature dryer to dry the cleaned pipeline surface and preheat the pipeline through the setting of the drying part. This process can not only ensure the cleanliness of the pipeline surface, but also enhance the bonding strength between the membrane material and the pipeline, providing a solid foundation for subsequent coating operations and ensuring that the membrane material can fit tightly on the pipeline.

[0022] 3. The present invention, through the setting of the pushing part, utilizes the driving action of the electric gear set 2, so that the pipeline located inside the body can be pushed forward and rotated synchronously, which not only stabilizes the movement of the pipeline, but also makes the coating operation of the entire pipeline more automated, thereby effectively improving production efficiency and ensuring the quality of the coating.

[0023] 4. The present invention uses a rotating mechanism in which the first swivel and the second swivel work in coordination, so that the inclined block can contact the convex rod, thereby driving the electric roller to closely adhere to the pipeline, to ensure that the pipeline can obtain a stable clamping and propulsion effect, thereby adapting to the operation of pipeline coating and making the fit between the film material and the pipeline more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the components such as the body, the cleaning part and the coating part of the present invention.

[0026] Figure 3 It is a three-dimensional structural cross-sectional view of the machine body and the conical cylinder of the present invention after being cut open.

[0027] Figure 4It is a schematic diagram of the three-dimensional structure of the gear ring, the coating part and other components of the present invention.

[0028] Figure 5 It is a three-dimensional structural cross-sectional view of the mounting seat, winding drum, blocking cover and electromagnet of the present invention.

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the tension spring, pressure roller and connecting rod of the present invention.

[0030] Figure 7 It is a three-dimensional structural cross-sectional view of each component of the drying section of the present invention.

[0031] Figure 8 It is a three-dimensional structural schematic diagram of some components of the pushing part of the present invention.

[0032] Fig. 9 It is a three-dimensional structural cross-sectional view of the swivel 1, swivel 2 and the insert rod of the present invention.

[0033] Fig.10 It is a three-dimensional structural schematic diagram of the body, electric gear set 2, gear ring and other components of the present invention.

[0034] The marks in the drawings provided by the present invention are: 100, pipeline, 1, body, 11, sealing ring, 12, drainage pipe, 2, conical cylinder, 21, sponge block, 211, groove, 3, assembly seat, 31, electric gear set 1, 32, gear ring, 4, cleaning part, 41, infusion pump, 42, injection tube, 43, connecting pipe, 5, coating part, 51, mounting seat, 52, winding drum, 521, blocking cover, 522, electromagnet, 53, Connecting rod one, 54, tension spring, 55, pressure roller, 56, connecting rod two, 57, electric heating roller, 6, drying section, 61, high temperature dryer, 62, conveying pipe, 63, spray gun, 64, one-way pipe, 7, pushing section, 71, swivel one, 72, swivel two, 73, plug rod, 731, socket, 74, inclined block, 75, mounting plate, 76, protruding rod, 77, sliding frame, 78, electric roller, 79, electric gear set two, 710, gear ring. DETAILED DESCRIPTION

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0036] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Embodiment: A PE pipe film covering device with pretreatment function and good adhesion, such as Figure 1-Figure 7 As shown, including:

[0038] The machine body 1 is composed of a bottom plate and an arched platform. The bottom plate is located at the front side of the arched platform. A front-to-back channel is opened in the arched platform of the machine body 1, so that the pipe 100 can be moved in the front-to-back direction after being inserted into the channel to achieve the transportation of the pipe 100. A sealing ring 11 is symmetrically arranged in the front-to-back rotation inside the channel of the machine body 1 to ensure the sealing of the pipe 100 placed inside the machine body 1, providing a closed space for subsequent cleaning operations, and a drain pipe 12 is also connected to the inside of the machine body 1, so that the waste water after cleaning the pipe 100 can be discharged, providing a more suitable working environment for the cleaning operation.

[0039] The conical cylinder 2 is connected to the front end opening of the body 1. A sponge block 21 for wiping and cleaning the pipe 100 is arranged inside the conical cylinder 2. The sponge block 21 is adapted to the shape of the conical cylinder 2, and a groove 211 is provided in the middle position of the inner circle of the sponge block 21, so that the middle position of the sponge block 21 is recessed, and the front and rear sides form a convex shape relative to the lowest point of the groove 211, so that the pipe 100 passing through the sponge block 21 can be wiped twice by the protrusions on both sides, the excess moisture is removed for the first time, and the consolidation wipe is performed for the second time, which fully ensures the cleanliness of the surface of the pipe 100, so that the film material can be more tightly fitted with the pipe 100, the fit is improved, and the pipe 100 coating with a better effect is presented.

[0040] The assembly seat 3 is fixedly arranged on the top of the bottom plate of the body 1. A fixedly installed electric gear set 31 and a rotatably connected gear ring 32 are arranged on the assembly seat 3. The electric gear set 31 is composed of a motor and a gear to obtain a gear that can rotate automatically. The gear ring 32 is meshed with the gear of the electric gear set 31, thereby driving the gear ring 32 to rotate. Taking the front view as the main viewing angle, the gear ring 32 rotates counterclockwise, and the gear ring 32 is located at the front side of the arched platform of the body 1. The two are arranged concentrically, so as to accurately control the coating position of the pipeline 100 and ensure the stability of the position of the film material when it is wound on the pipeline 100.

[0041] The cleaning part 4 is arranged on the top of the body 1. The cleaning part 4 includes an infusion pump 41 fixedly installed in the middle position of the top of the arched platform of the body 1. Four injection pipes 42 are also arranged on the arched platform of the body 1 along the circumferential interval. The nozzles of the injection pipes 42 are placed in the channel of the body 1, and connecting pipes 43 are connected between each injection pipe 42. The middle connecting pipe 43 is connected to the water outlet of the infusion pump 41. The infusion pump 41 is connected to the required cleaning agent. The water flow impact force provided by the infusion pump 41 can effectively remove impurities on the surface of the pipeline 100. Before the pipeline 100 is coated, the cleaning operation ensures that the surface of the pipeline 100 is clean and smooth, providing high-quality pretreatment conditions for subsequent coating operations.

[0042] The coating part 5 is arranged on the gear ring 32. The coating part 5 includes a mounting seat 51 fixedly arranged at the rear side of the gear ring 32. The mounting seat 51 is composed of a plate body extending downward and a hollow frame body, so that the mounting seat 51 can be close to the center position of the gear ring 32. A winding drum 52 for placing a film roll is rotatably arranged in the frame of the mounting seat 51. The winding drum 52 is arranged in the front and back directions. Because of the position relationship of the mounting seat 51, the film roll on the winding drum 52 can be close to the position of the pipeline 100 to achieve a more suitable coating effect. A blocking cover 521 is inserted at the front end of the winding drum 52, and a connecting rod 53 is hingedly arranged on the right side of the mounting seat 51. A tension spring 54 is arranged between the connecting rod 53 and the mounting seat 51. The tension spring 54 provides elastic support for the connecting rod 53 to reset its operation, and a connecting rod 53 is rotatably arranged with the same tension spring as the winding drum 52. A pressure roller 55 is arranged in the one direction, and a second connecting rod 56 is hingedly arranged at the end of the first connecting rod 53. An electric heating roller 57 is rotatably arranged on the second connecting rod 56 on the same side as the pressure roller 55. Both the first connecting rod 53 and the second connecting rod 56 are designed in an arc shape, so that the two can better match the shape of the pipeline 100, and adjust their positions as the pipeline 100 moves and the tension of the film material changes, ensuring that the pressure roller 55 and the electric heating roller 57 can continue to fit tightly to the surface of the film material. First, the pressure roller 55 is used to flatten the gap between the film material and the pipeline 100, thereby effectively removing the air between the film material and the pipeline 100 and reducing the distance between the film material and the pipeline 100. Subsequently, the electric heating roller 57 is used to heat the film material so that the film material is affected by the temperature and is close to the surface of the pipeline 100. The high temperature promotes the close combination of the film material and the pipeline 100, thereby presenting a coating effect with a more suitable fit.

[0043] like Figure 5As shown, it also includes an electromagnet 522 arranged on the left and right sides of the winding drum 52. The electromagnet 522 is located inside the frame of the mounting seat 51, and the frame is made of copper. The relative movement between the electromagnet 522 and the copper frame of the mounting seat 51 is used to form magnetic damping for the rotating winding drum 52, thereby restraining the rotation of the winding drum 52. In addition, by adjusting the current intensity of the electromagnet 522, the intensity of the magnetic field can be changed, and then the size of the resistance acting on the winding drum 52 can be accurately controlled to ensure the stability and controllability of the winding process.

[0044] like Figure 1 and Figure 7 As shown, a drying section 6 for drying and preheating the pipe 100 is provided on the bottom plate of the machine body 1, and the drying section 6 includes a high-temperature dryer 61 fixedly mounted on the bottom plate of the machine body 1, and a spray gun 63 passing through the sponge block 21 is provided on the conical cylinder 2, and a conveying pipe 62 is connected between the spray gun 63 and the air outlet of the high-temperature dryer 61, and a one-way pipe 64 for draining liquid is connected between the sponge block 21 and the lower side of the conical cylinder 2, and the spray gun 63 and the one-way pipe 64 are both placed in the groove 211 of the sponge block 21, and the surface of the pipe 100 after cleaning is dried by high-temperature airflow, and the setting of the groove 211 ensures that the airflow can evenly surround the entire surface of the pipe 100 to achieve comprehensive and efficient drying, and also increases the surface temperature of the pipe 100, achieving an ideal preheating effect.

[0045] like Figure 1 , Figure 8-Figure 10 As shown, a pushing part 7 for pushing the pipe 100 to move is arranged at the rear end opening of the machine body 1, and the pushing part 7 includes a swivel 1 71 rotatably arranged at the rear end of the arched platform of the machine body 1, and a swivel 2 72 is rotatably arranged on the swivel 1 71. The outer ring positions of the swivel 1 71 and the swivel 2 72 are both provided with handles for easy gripping and rotation, and the swivel 2 72, the swivel 1 71 and the arched platform of the machine body 1 are arranged in a concentric layout, and a fixing piece for fixing the position after rotation is arranged between the swivel 2 72 and the swivel 1 71, and three inclined blocks 74 are fixedly arranged at intervals along the circumferential direction on the inner ring of the swivel 2 72, and three inclined blocks 74 are fixedly arranged along the circumferential direction on the rear side of the swivel 1 71. Mounting plates 75 are fixedly arranged at intervals with the same number and layout as the inclined blocks 74. Protruding rods 76 that contact and cooperate with adjacent inclined blocks 74 are penetrated and slidably arranged on the mounting plates 75. The ends of the protruding rods 76 are connected to sliding frames 77 that slidably cooperate with the swivel 71. Electric rollers 78 for fitting the pipe 100 are rotatably arranged on the sliding frames 77. Based on the front side viewing angle, the inclined surface of the inclined block 74 is inclined to the right. The contact and cooperation between the inclined block 74 and the protruding rods 76 are utilized to shorten the distance between the electric roller 78 and the pipe 100, thereby fitting the pipe 100 and pushing the pipe 100 to realize forward movement.

[0046] like Fig.10As shown, the pushing part 7 also includes an electric gear set 2 79 fixedly arranged on the rotating ring 1 71. The electric gear set 2 79 has the same structure as the electric gear set 1 31. A ring gear 710 meshing with the gears of the electric gear set 2 79 is circumferentially arranged on the arched platform of the body 1 to drive the rotation operation extending forward into the pipeline 100, and the gears of the electric gear set 1 31 and the electric gear set 2 79 rotate in opposite directions to adapt to the coating operation of the pipeline 100.

[0047] like Figure 8-Figure 10 As shown, the fixing part includes an insertion rod 73 inserted on the handle end of the second swivel 72, and a socket 731 is provided on the first swivel 71 to be plugged with the insertion rod 73, thereby fixing the positions of the first swivel 71 and the second swivel 72 after rotation, so that the inclined block 74 and the protruding rod 76 always maintain a contact state, so as to stabilize the fitting state of the electric roller 78 and the pipeline 100.

[0048] When it is necessary to coat the pipe 100, first ensure that the machine body 1 is placed on a stable ground, take out the cover 521 of the winding drum 52, then put the film roll on the winding drum 52 and insert the cover 521 back, then extend the pipe 100 into the channel of the machine body 1, and extend the pipe 100 from back to front. Then, hold the handle ends on the rotating ring 1 71 and the rotating ring 2 72, and push them to rotate in relative directions, so that the inclined block 74 comes into contact with the adjacent convex rod 76, and the convex rod 76 is pushed and drives the connected sliding frame 77 to slide on the rotating ring 1 71, so that the corresponding electric roller 78 is in contact with the surface of the pipe 100, and then each electric The roller 78 cooperates to clamp the pipe 100 to stabilize the position of the pipe 100, and then the end of the insertion rod 73 is inserted into the socket 731 to fix the position of the swivel 1 71 and the swivel 2 72, and then the electric roller 78 and the electric gear set 2 79 are started. As the roller of the electric roller 78 rotates, the pipe 100 is pushed forward. At the same time, due to the drive of the electric gear set 2 79, the gears thereon rotate and mesh with the ring gear 710, prompting the electric gear set 1 31 to rotate along the ring gear 710, and then the swivel 1 71 and the swivel 2 72 and the components thereon are driven together, so that the pipe 100 placed therein also rotates synchronously.

[0049] Then, the infusion pump 41 is connected to the cleaning agent, and then the infusion pump 41 is started. The infusion pump 41 delivers the cleaning agent to the connecting pipe 43, and then the cleaning agent flows into each injection pipe 42, and is sprayed onto the surface of the entering pipe 100 through the nozzle of the injection pipe 42. The rotating pipe 100 is fully cleaned by high-pressure flushing. At the same time, the waste liquid after cleaning will be discharged outward through the drain pipe 12. With the support of the sealing ring 11, the cleaning of the pipe 100 can be in a sufficiently closed space; in this process, the cleaned pipe 100 will continue to move forward, and then its front end will pass through the front end opening of the body 1 and enter the conical cylinder 2, and the sponge block 21 will be During wiping, excess moisture will be taken away, and the moisture flowing out after wiping will be discharged through the one-way pipe 64. After the pipe 100 moves to the groove 211 position of the sponge block 21, the high-temperature dryer 61 will operate synchronously, and the heated air will be transported to the spray gun 63 through the delivery pipe 62, and then the hot air can be sprayed outward through the spray gun 63 to dry the surface of the pipe 100 and preheat the surface of the pipe 100, laying the required temperature foundation for the subsequent coating operation; as the pipe 100 moves, the front end of the dried pipe 100 will be attached to the front side of the sponge block 21 for a second wipe to ensure that the surface of the pipe 100 is clean enough.

[0050] Next, the pipe 100 moves out of the conical cylinder 2, and when the front end of the pipe 100 approaches the winding drum 52, the film material is pulled to contact the surface of the pipe 100, and then the electric gear set 31 is started, which drives the connected gear to rotate, so that the gear and the gear ring 32 are meshed, and the gear ring 32 is driven to rotate. The rotation of the gear ring 32 will then drive the winding drum 52 and the components thereon to rotate synchronously. Since the gear ring 32 rotates in opposite directions to the pipe 100, the film material can be rotated and wound on the pipe 100. At the same time, the electromagnet 522 operates synchronously, so that the magnetic damping formed between it and the copper frame of the mounting seat 51 restrains the rotation of the winding drum 52. Here, the current intensity of the electromagnet 522 can also be adjusted to change the intensity of the magnetic field, thereby adjusting the action. The resistance size on the winding drum 52 enables the winding drum 52 to wind the film material more stably, thereby achieving a more stable film coating operation of the pipeline 100. At the same time, as the film material is continuously coated, the pressure roller 55 will also follow the rotation to press the attached film material, thereby squeezing out the bubbles between the film material and the pipeline 100. Then the flattened pipeline 100 will be heated by the electric heating roller 57, so that the fit between the film material and the pipeline 100 is higher. The connecting rod 1 53 and the connecting rod 2 56 are continuously pushed with the rotation operation, and the tension spring 54 is deformed accordingly, thereby ensuring the fit between the pressure roller 55 and the electric heating roller 57 and the film material, so that the pipeline 100 can be covered with the film material with better effect. In summary, this is the overall film coating operation of the pipeline 100.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A PE pipe film covering device with pretreatment function and good adhesion, comprising: The machine body (1) is composed of a bottom plate and an arched platform. A channel extending in the front-rear direction is provided in the arched platform of the machine body (1). A sealing ring (11) is symmetrically arranged in the channel of the machine body (1). A drain pipe (12) for draining waste liquid is also connected to the inside of the machine body (1). A conical cylinder (2) connected to the front end opening of the machine body (1), wherein a sponge block (21) for wiping the pipeline (100) is arranged inside the conical cylinder (2); An assembly seat (3) is arranged on the bottom plate of the machine body (1), and a fixedly mounted electric gear set (31) and a rotatably connected gear ring (32) are arranged on the assembly seat (3), the gear ring (32) meshing with the gear of the electric gear set (31), the gear ring (32) being located at the front side of the arched platform of the machine body (1) and the two are arranged concentrically; The invention is characterized in that it further comprises: a cleaning portion (4) arranged on the top of the machine body (1), the cleaning portion (4) comprising an infusion pump (41) mounted on the arched platform of the machine body (1), a plurality of spray pipes (42) being arranged on the arched platform of the machine body (1) at intervals along the circumferential direction, the spray nozzles of the spray pipes (42) being placed in the channel of the machine body (1), and connecting pipes (43) being connected between the respective spray pipes (42), one of the connecting pipes (43) being connected to the water outlet of the infusion pump (41); The film coating part (5) is arranged on the gear ring (32), and the film coating part (5) comprises a mounting seat (51) arranged on the gear ring (32), a winding drum (52) for placing a film roll is rotatably arranged on the mounting seat (51), a blocking cover (521) is inserted at the end of the winding drum (52), a connecting rod (53) is also hingedly arranged on one side of the mounting seat (51), a tension spring (54) is arranged between the connecting rod (53) and the mounting seat (51), and a pressure roller (55) is rotatably arranged on the connecting rod (53) in the same direction as the winding drum (52), and a connecting rod (56) is also hingedly arranged at the end of the connecting rod (53), and an electric heating roller (57) is rotatably arranged on the connecting rod (56) on the same side as the pressure roller (55); A drying section (6) for drying and preheating the pipe (100) is arranged on the bottom plate of the machine body (1), the drying section (6) comprising a high-temperature dryer (61) mounted on the bottom plate of the machine body (1), a spray gun (63) passing through the sponge block (21) is arranged on the conical cylinder (2), a delivery pipe (62) is connected between the spray gun (63) and the air outlet of the high-temperature dryer (61), and a one-way pipe (64) for draining liquid is connected between the sponge block (21) and the lower side of the conical cylinder (2); A driving portion (7) for driving the pipe (100) to move is provided at the rear end opening of the machine body (1), the driving portion (7) comprising a first rotating ring (71) rotatably arranged at the rear end of the arched platform of the machine body (1), a second rotating ring (72) rotatably arranged on the first rotating ring (71), the second rotating ring (72), the first rotating ring (71) and the arched platform of the machine body (1) being arranged in a coaxial arrangement, and a fixing member for fixing the position after rotation is provided between the second rotating ring (72) and the first rotating ring (71), and the inner ring of the second rotating ring (72) At least two inclined blocks (74) are arranged at intervals along the circumferential direction, and mounting plates (75) are arranged at intervals along the circumferential direction on the rear side of the first rotating ring (71) in the same number and arrangement as the inclined blocks (74). The mounting plates (75) are penetrated and slidably provided with protruding rods (76) for contacting and cooperating with adjacent inclined blocks (74), and the ends of the protruding rods (76) are connected to sliding frames (77) for slidably cooperating with the first rotating ring (71), and electric rollers (78) for fitting the pipe (100) are rotatably provided on the sliding frames (77); The driving part (7) further comprises a second electric gear set (79) arranged on the first rotating ring (71), and a ring gear (710) meshing with the gears of the second electric gear set (79) is arranged circumferentially on the arched platform of the machine body (1) to drive the rotation of the inserted pipe (100).

2. A PE pipe film coating device with pretreatment function and good adhesion according to claim 1, characterized in that: It also includes electromagnets (522) arranged on both sides of the winding drum (52). The electromagnets (522) are located inside the mounting seat (51) and are used to restrain the rotation of the winding drum (52).

3. A PE pipe film covering device with pretreatment function and good adhesion according to claim 2, characterized in that: The middle of the sponge block (21) has a groove (211) so that the two ends of the sponge block (21) form a convex shape, and the spray gun (63) and the one-way tube (64) are both placed in the groove (211) of the sponge block (21).

4. A PE pipe film coating device with pretreatment function and good adhesion according to claim 3, characterized in that: The fixing member comprises an insertion rod (73) inserted on the handle end of the second rotating ring (72), and a plug hole (731) for plugging and cooperating with the insertion rod (73) is provided on the first rotating ring (71).

5. A PE pipe film coating device with pretreatment function and good adhesion according to claim 4, characterized in that: The gear rotation directions of the electric gear set 1 (31) and the electric gear set 2 (79) are opposite to each other, so as to adapt to the coating operation of the pipeline (100).

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