Traction roller body for film blowing method production equipment

Abstract

The utility model discloses a traction roller body for film blowing method production equipment, which comprises a roller body, a cooling flow channel is arranged in the roller body, an anti-skidding layer is arranged on the outer side of the roller body, a liquid inlet pipe and a liquid outlet pipe which are communicated with the cooling flow channel are arranged on two sides of the roller body, a cleaning assembly is connected with the inner side of the cooling flow channel in a sliding mode, and the cleaning assembly is connected with the roller body in a sliding mode. A dirt discharging assembly is arranged at the top of the interior of the cooling flow channel, and a cleaning assembly comprises a sliding block, a through hole, a scraping ring, a guide groove, a guide rod, a push plate, a sealing plug and a spring; the cooling runner, the liquid inlet pipe and the liquid outlet pipe are matched with one another, so that when the roller body is used for film blowing production equipment, cooling water can be pumped into the cooling runner to exchange heat with the roller body for cooling, compared with a transmission air cooling mode, the heat conductivity coefficient of a water cooling medium is far higher than that of air, the cooling efficiency is higher, the cooling effect is better, and the service life of the roller body is prolonged. Air impurities can be prevented from affecting the cleanliness of the film, and the film quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of traction roller technology, specifically a traction roller body for blown film production equipment. Background Technology

[0002] The traction roller in blown film production equipment is a key component used to pull the film forward during the blown film process. Different types of traction rollers differ in structure, function, and application scenarios. Common traction rollers include ordinary traction rollers, embossing rollers, and cooling traction rollers. For example, cooling traction rollers use circulating cold air to cool the rotating rollers, which can prevent air impurities from affecting the cleanliness of the film and improve the quality of the film. This is an important direction for the development of traction roller technology.

[0003] A patent with authorization announcement number "CN221623014U" discloses a special cooling traction roller for high-viscosity self-adhesive blown film production equipment. The roller includes a cooling roller body with an inlet rotary joint and an outlet rotary joint installed at both ends. The inlet and outlet rotary joints are connected to an inlet pipe and an outlet pipe, respectively, and both are equipped with temperature and pressure sensors. This invention uses circulating cold air to cool the rotating roller. The cooling gas enters between the inner and outer roller layers through the inlet pipe, cooling the roller body through the cooling airflow. Compared to existing external blowing cooling, this avoids the problem of air impurities affecting film cleanliness, thus improving film cleanliness.

[0004] However, this device has the following shortcomings:

[0005] 1. When the above device is in use, the roller is cooled by air cooling. However, the thermal conductivity of air cooling is poor, and the thermal conductivity of water cooling medium is much higher than that of air. Therefore, its cooling effect on the film is poor. In addition, the impurities carried by the airflow can easily contaminate the glass and reduce the film production quality.

[0006] 2. When using a cooling traction roller, impurities and dust carried in the air can easily adhere to the cooling channels. However, the above-mentioned device cannot quickly clean the cooling channels inside the roller, which will affect the heat exchange effect of the roller. Utility Model Content

[0007] The purpose of this invention is to provide a traction roller for blown film production equipment to solve the existing problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a traction roller body for blown film production equipment, comprising a roller body, a cooling channel being provided inside the roller body, an anti-slip layer being provided on the outer side of the roller body, an inlet pipe and a drain pipe being provided on both sides of the roller body and communicating with the cooling channel, a cleaning component being slidably connected to the inner side of the cooling channel, and a sewage discharge component being provided at the top inside the cooling channel.

[0009] Preferably, the cleaning assembly includes a sliding block, a through hole, a scraper ring, a guide groove, a guide rod, a push plate, a sealing plug, and a spring. The sliding block is slidably sleeved on the inner side of the cooling channel. A through hole is provided on the inner side of the sliding block. A scraper ring is provided on the outer side of the sliding block. Two sets of guide grooves are provided on one side of the sliding block. A guide rod is slidably inserted into the inner side of the two sets of guide grooves. A push plate is provided on one side of the two sets of guide rods. A sealing plug that cooperates with the through hole is provided on one side of the push plate. A spring is sleeved on the outer side of the two sets of guide rods. The cleaning assembly can automatically clean the dirt in the cooling channel by drawing water and reversing the flow.

[0010] Preferably, the drain assembly includes a chute, a slider, a movable plate, a sealing plug, a push rod, and a drain pipe. The chute is located on one side of the top inside the cooling channel. A slider is slidably connected to the inner side of the chute. A movable plate is provided at the bottom of the slider. A sealing plug that cooperates with the liquid inlet pipe is provided on one side of the movable plate. A push rod is provided on the other side of the movable plate. A drain pipe is provided on one side of the bottom inside the cooling channel. The water flow drainage path can be switched to facilitate the discharge of dirt.

[0011] Preferably, the drain pipe has an internal thread on its inner side, and a sealing cap is connected to the inner thread of the internal thread, which can seal the drain pipe.

[0012] Preferably, an annular groove is provided on one side of the outer side of the sliding block, the scraper ring is located inside the annular groove, and a sealing ring is provided on the other side of the outer side of the sliding block. The annular groove provides installation space for the scraper ring, and the sealing ring can ensure the sealing of the sliding block.

[0013] Preferably, the inner side of the cooling channel is provided with a movable groove, and the diameter of the movable groove is smaller than that of the sliding block and larger than that of the push plate, so as to provide the push plate with a movable space.

[0014] Preferably, a limiting block is provided on the side of the guide rod away from the push plate, and the diameter of the limiting block is larger than that of the spring, which can limit the range of motion of the push plate and push the spring to compress through the limiting block.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the traction roller body used in the blown film production equipment;

[0016] 1. Through the cooperation between the cooling channel, the liquid inlet pipe and the liquid outlet pipe, the roller body can draw cooling water into the cooling channel to exchange heat with the roller body and cool down when it is used in blown film production equipment. Compared with the transmission air cooling method, the thermal conductivity of the water cooling medium is much higher than that of air, the cooling efficiency is higher and the cooling effect is better. It can avoid air impurities from affecting the cleanliness of the film and improve the quality of the film.

[0017] 2. Through the cooperation of sliding blocks, through holes, scraper rings, guide grooves, guide rods, push plates, sealing plugs, springs, and sewage discharge components, the device can perform backwashing when it is necessary to clean the dirt in the cooling channel. Simply connect the drain pipe to the inlet pipe. The water pressure will push the sliding block to slide in the cooling channel, thereby scraping away the dirt. At the same time, the water pressure will push the sealing plug to block the inlet pipe, allowing the water to carry the dirt out through the sewage discharge pipe. This automatically completes the cleaning of the cooling channel, improves the convenience of cleaning, and prevents dirt from affecting the heat exchange quality of the roller. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a front sectional view of the present invention;

[0020] Figure 3 This is a front sectional view of the present invention in its cleaned state;

[0021] Figure 4 This is an enlarged front sectional view of the cleaning component of this utility model;

[0022] Figure 5 For the present utility model Figure 3 An enlarged schematic diagram of the structure at point A.

[0023] In the diagram: 1. Roller body; 2. Cooling channel; 3. Anti-slip layer; 4. Liquid inlet pipe; 5. Liquid outlet pipe; 6. Cleaning assembly; 61. Sliding block; 62. Through hole; 63. Scraper ring; 64. Guide groove; 65. Guide rod; 66. Push plate; 67. Sealing plug; 68. Spring; 7. Sewage discharge assembly; 71. Slide groove; 72. Sliding block; 73. Movable plate; 74. Sealing plug; 75. Push rod; 76. Sewage discharge pipe. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 The present invention provides an embodiment of a traction roller for blown film production equipment, comprising a roller body 1, a cooling channel 2 inside the roller body 1, an anti-slip layer 3 on the outer side of the roller body 1, an inlet pipe 4 and an outlet pipe 5 connected to the cooling channel 2 on both sides of the roller body 1, a cleaning component 6 slidably connected to the inner side of the cooling channel 2, and a sewage discharge component 7 at the top inside the cooling channel 2.

[0026] The cleaning component 6 includes a sliding block 61, a through hole 62, a scraper ring 63, a guide groove 64, a guide rod 65, a push plate 66, a sealing plug 67, and a spring 68. The sliding block 61 is slidably sleeved on the inner side of the cooling channel 2. An annular groove is opened on one side of the outer side of the sliding block 61. The scraper ring 63 is located inside the annular groove. A sealing ring is provided on the other side of the outer side of the sliding block 61. The annular groove provides installation space for the scraper ring 63. The sealing ring can ensure the sealing of the sliding block 61. A through hole 62 is opened on the inner side of the sliding block 61. A scraper ring 63 is provided on the outer side of the sliding block 61. Two sets of guide grooves 64 are opened on one side of the sliding block 61. A guide rod 65 is slidably inserted into the inner side of the two sets of guide grooves 64. A push plate 66 is provided on one side of the two sets of guide rods 65.

[0027] The inner side of the cooling channel 2 is provided with a movable groove, the diameter of which is smaller than that of the sliding block 61 and larger than that of the push plate 66. This provides space for the push plate 66 to move when the cooling water flows, allowing the push plate 66 to move the sealing plug 67 to one side to open the through hole 62 and allow the cooling water to flow smoothly. A sealing plug 67 that mates with the through hole 62 is provided on one side of the push plate 66. Springs 68 are sleeved on the outer side of the two sets of guide rods 65. A limit block is provided on the side of the guide rod 65 away from the push plate 66, and the diameter of the limit block is larger than that of the spring 68. This limits the range of motion of the push plate 66. The limit block can push the spring 68 to compress, and the dirt in the cooling channel 2 can be automatically cleaned by the reverse flow of the water flow.

[0028] The drain assembly 7 includes a chute 71, a slider 72, a movable plate 73, a sealing plug 74, a push rod 75, and a drain pipe 76. The chute 71 is located on one side of the top inside the cooling channel 2. The slider 72 is slidably connected to the inside of the chute 71. The movable plate 73 is provided at the bottom of the slider 72. A sealing plug 74 that cooperates with the liquid inlet pipe 4 is provided on one side of the movable plate 73. A push rod 75 is provided on the other side of the movable plate 73. A drain pipe 76 is provided on one side of the bottom inside the cooling channel 2. The water flow drainage path can be switched to facilitate the discharge of dirt.

[0029] The drain pipe 76 has an internal thread on its inner side, and a sealing cap is connected to the inner thread of the internal thread. The sealing cap can block the drain pipe 76. The sealing cap is fixed to the internal thread of the drain pipe 76 by the thread. During normal cooling of the roller body 1, the drain pipe 76 can be sealed to prevent cooling water leakage.

[0030] Working principle: When using this device, the liquid inlet pipe 4 is connected to the cooling water inlet pipe. After the cooling water enters the cooling channel 2 through the liquid inlet pipe 4, it can absorb the temperature of the anti-slip layer 3, cool down the anti-slip layer 3, and improve the cooling effect of the traction roller on the film.

[0031] After the water flows into the cooling channel 2, the sliding block 61 can be pushed to the leftmost side of the cooling channel 2. When the sliding block 61 reaches the leftmost side of the cooling channel 2, the water flows into the through hole 62. The water pressure can push the sealing plug 67 under the guidance of the guide rod 65 to overcome the elastic force of the spring 68 and open the through hole 62, so that the water can flow smoothly and be discharged from the drain pipe 5 for circulation.

[0032] When water is used for heat exchange in the cooling channel 2, some dirt will be generated on the inner wall of the cooling channel 2, so it needs to be cleaned frequently. When the device cleans the cooling channel 2, the water flow can be controlled to enter the cooling channel 2 from the side of the drain pipe 5. Then the sealing cover is opened. At this time, the water flow into the cooling channel 2 can push the sliding block 61 to slide to the right. During the sliding process, the dirt on the inner wall of the cooling channel 2 can be scraped off by the scraper ring 63. When the sliding block 61 moves to the right side, the cleaned dirt can fall into the drain pipe 76. At the same time, the sealing plug 67 can push the movable plate 73 to move to one side, so that the sealing plug 74 blocks the liquid inlet pipe 4. After the liquid inlet pipe 4 is blocked, the water pressure can push the sliding block 61 to overcome the elastic force of the spring 68 and continue to move, so that the sealing plug 67 can open the through hole 62. At this time, the water flow can flow. When the water flow cannot be discharged from the blocked liquid inlet pipe 4, it can carry the scraped impurities into the drain pipe 76 and be discharged outward, which can quickly complete the cleaning of the cooling channel 2.

[0033] After the cooling channel 2 is cleaned, the subsequent liquid inlet pipe 4 enters the cooling water, which can automatically push open the sealing plug 74, and at the same time the water flow can push the sliding block 61 to reset.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A traction roller body for blown film production equipment, comprising a roller body (1), characterized in that: The roller body (1) has a cooling channel (2) inside. The roller body (1) has an anti-slip layer (3) on its outer side. The roller body (1) has an inlet pipe (4) and a drain pipe (5) connected to the cooling channel (2) on both sides. A cleaning component (6) is slidably connected to the inner side of the cooling channel (2). A sewage discharge component (7) is provided at the top inside the cooling channel (2).

2. The traction roller body for blown film production equipment according to claim 1, characterized in that: The cleaning assembly (6) includes a sliding block (61), a through hole (62), a scraper ring (63), a guide groove (64), a guide rod (65), a push plate (66), a sealing plug (67), and a spring (68). The sliding block (61) is slidably sleeved on the inner side of the cooling channel (2). The inner side of the sliding block (61) is provided with a through hole (62). The outer side of the sliding block (61) is provided with a scraper ring (63). Two sets of guide grooves (64) are provided on one side of the sliding block (61). The inner side of the two sets of guide grooves (64) is slidably inserted with a guide rod (65). The two sets of guide rods (65) are provided with a push plate (66) on one side. The push plate (66) is provided with a sealing plug (67) that cooperates with the through hole (62). The outer side of the two sets of guide rods (65) is sleeved with a spring (68).

3. The traction roller body for blown film production equipment according to claim 1, characterized in that: The drain assembly (7) includes a chute (71), a slider (72), a movable plate (73), a sealing plug (74), a push rod (75), and a drain pipe (76). The chute (71) is located on one side of the top inside the cooling channel (2). The slider (72) is slidably connected to the inner side of the chute (71). The movable plate (73) is provided at the bottom of the slider (72). A sealing plug (74) that cooperates with the liquid inlet pipe (4) is provided on one side of the movable plate (73). A push rod (75) is provided on the other side of the movable plate (73). A drain pipe (76) is provided on one side of the bottom inside the cooling channel (2).

4. The traction roller body for blown film production equipment according to claim 3, characterized in that: The drain pipe (76) has an internal thread on its inner side, and the inner thread of the internal thread is connected to a sealing cap.

5. The traction roller body for blown film production equipment according to claim 2, characterized in that: An annular groove is provided on one side of the outer side of the sliding block (61), the scraper ring (63) is located inside the annular groove, and a sealing ring is provided on the other side of the outer side of the sliding block (61).

6. The traction roller body for blown film production equipment according to claim 2, characterized in that: The cooling channel (2) has a movable groove on its inner side, and the diameter of the movable groove is smaller than that of the sliding block (61) and larger than that of the push plate (66).

7. The traction roller body for blown film production equipment according to claim 2, characterized in that: A limit block is provided on the side of the guide rod (65) away from the push plate (66), and the diameter of the limit block is larger than that of the spring (68).

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