A tpu blown film machine

Abstract

The utility model relates to the technical field of blown film machine, concretely is a kind of TPU blown film machine.The utility model, including blown film machine body, the surface of blown film machine body is equipped with feed bin, the surface of blown film machine body is equipped with display screen, the surface of feed bin is equipped with protection device, the protection device includes two rotating blocks, two the surface fixed connection of rotating block and feed bin, two The side rotationally connected of rotating block each other has rotating lever, the circular arc surface fixed connection of rotating lever has protection plate, the surface fixed connection of protection plate has handle, the surface fixed connection of feed bin has two fixed rods, the circular arc surface slidingly connected of fixed rod has L-shaped plate.Solved the metal scrap, oil dirt and other impurities into feed bin and material mixed together, cause blown film machine body production's film to appear "black point" and "rigid block", thereby cause blown film machine body production's film quality unqualified problem.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and in particular to a TPU blown film machine. Background Technology

[0002] In the field of blown film technology, TPU (thermoplastic polyurethane elastomer) is widely used in film production in medical, electronic, automotive, and sports fields due to its excellent properties such as high elasticity, wear resistance, and weather resistance. As a key piece of equipment for processing TPU films, the performance of the TPU blown film machine directly affects the quality of the film and production efficiency.

[0003] Currently, existing TPU blown film machines face several pressing issues in actual production. Among these, the protection of the feed hopper is particularly problematic. Because the feed hopper typically lacks effective protective measures, impurities such as metal shavings, oil, and dust easily enter and mix with the TPU material. These impurities can cause defects such as "black spots" and "lumps" in the film produced by the blown film machine, severely affecting the film's appearance quality and physical properties, ultimately leading to substandard product quality and increased production losses and costs.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: metal shavings, oil stains and other impurities enter the feed hopper and mix with the material, causing the film produced by the blown film machine to have "black spots" and "clumps", thus resulting in the film produced by the blown film machine being of unqualified quality; therefore, a TPU blown film machine is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology where impurities such as metal scraps and oil stains enter the feed hopper and mix with the materials, resulting in "black spots" and "clumps" on the film produced by the blown film machine, thus causing the film produced by the blown film machine to be of substandard quality. Therefore, a TPU blown film machine is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a TPU blown film machine, comprising a blown film machine body, a feeding bin mounted on the surface of the blown film machine body, a display screen mounted on the surface of the blown film machine body, a protective device provided on the surface of the feeding bin, the protective device comprising two rotating blocks, both of the two rotating blocks being fixedly connected to the surface of the feeding bin, a rotating rod being rotatably connected to one side of the two rotating blocks that are close to each other, a protective plate being fixedly connected to the arc surface of the rotating rod, and a handle being fixedly connected to the surface of the protective plate.

[0007] The effect achieved by the above-mentioned components is as follows: by setting up protective devices, the feed hopper can be protected, preventing impurities such as metal shavings and oil stains from entering the feed hopper and mixing with the materials, which would cause "black spots" and "lumps" to appear on the film produced by the blown film machine, resulting in substandard film quality and improving the practicality of the equipment.

[0008] Preferably, the surface of the feed hopper is fixedly connected to two fixed rods, the arc surface of the fixed rods is slidably connected to an L-shaped plate, the side of the L-shaped plate near the feed hopper is fixedly connected to an insert rod, and the surface of the protective plate is fixedly connected to two square blocks, the surface of the square blocks being provided with slots.

[0009] The aforementioned components achieve the following effect: they can fix the protective plate in place, preventing the protective plate from rotating and thus reducing its protective effect.

[0010] Preferably, two fixing blocks are fixedly connected to the surface of the feeding bin, a limiting rod is slidably inserted in the fixing block, one end of the limiting rod is fixedly connected to the limiting block, and the limiting block is slidably connected to the surface of the feeding bin.

[0011] The effect achieved by the above components is that the limiting block can restrict the movement of the insertion rod, thus preventing the insertion rod from colliding with the protective plate and causing damage when the staff does not pay attention to the position of the insertion rod when closing the protective plate.

[0012] Preferably, the arc surface of the rotating rod is fitted with two torsion springs, and the two ends of the torsion springs are fixedly connected to the rotating block and the protective plate, respectively.

[0013] The effect achieved by the above components is that the torsion spring's torque automatically opens the protective plate while keeping it open, thus facilitating the addition of materials to the feed hopper by the staff.

[0014] Preferably, the surface of the display screen is provided with an auxiliary device, which includes two square rods. Both square rods are fixedly connected to the surface of the display screen. Each of the two square rods has a sliding hole on its surface. A sliding block is slidably connected to the surface of each sliding hole on the two square rods. An auxiliary plate is fixedly connected to the side of the two sliding blocks that are close to each other.

[0015] The effect achieved by the above-mentioned components is that by setting up auxiliary devices, the display screen can be protected, preventing dust, water vapor and other impurities in the air from adhering to the surface of the display screen, causing the display screen to become blurry and making it inconvenient for staff to view the display screen, thus improving the practicality of the equipment.

[0016] Preferably, an L-shaped block is fixedly connected to the surface of the square rod, a round rod is slidably inserted into the L-shaped block, and two round grooves are formed on the surface of the auxiliary plate.

[0017] The aforementioned components achieve the following effect: they can fix the auxiliary plate in place, preventing it from shaking and reducing its protective effect.

[0018] Preferably, a spring is fixedly connected to the surface of the sliding block, and the two ends of the spring are fixedly connected to the square rod sliding hole and the sliding block, respectively.

[0019] The effect achieved by the above components is that the spring's rebound force automatically opens the auxiliary plate, reducing the manual opening steps for staff and improving their work efficiency.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] 1. In this utility model, by setting up a protective device, the feeding hopper can be protected, preventing metal shavings, oil stains and other impurities from entering the feeding hopper and mixing with the material, which would cause "black spots" and "lumps" to appear on the film produced by the blown film machine, resulting in substandard film quality and improving the practicality of the equipment.

[0022] 2. In this utility model, by setting an auxiliary device, the display screen can be protected, avoiding dust, water vapor and other impurities in the air from adhering to the surface of the display screen, which would cause the display screen to become blurry and make it inconvenient for staff to view the display screen, thus improving the practicality of the equipment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the protective device in this utility model;

[0025] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0026] Figure 4 In this utility model Figure 2 Partial structural diagram;

[0027] Figure 5 This is a partial structural schematic diagram of the protective device in this utility model;

[0028] Figure 6 This is a schematic diagram of the auxiliary device in this utility model;

[0029] Figure 7 This is a partial structural diagram of the auxiliary device in this utility model.

[0030] Legend: 1. Blown film machine body; 2. Feed hopper; 3. Display screen; 4. Protective device; 5. Auxiliary device; 401. Rotating block; 402. Rotating rod; 403. Protective plate; 404. Handle; 405. Fixing rod; 406. L-shaped plate; 407. Insert rod; 408. Square block; 409. Fixing block; 410. Limiting rod; 411. Limiting block; 412. Torsion spring; 51. Square rod; 52. Sliding block; 53. Auxiliary plate; 54. L-shaped block; 55. Round rod; 56. Spring. Detailed Implementation

[0031] Reference Figure 1 As shown, this utility model provides a technical solution: a TPU blown film machine, including a blown film machine body 1, a feeding bin 2 installed on the surface of the blown film machine body 1, a display screen 3 installed on the surface of the blown film machine body 1, and a protective device 4 provided on the surface of the feeding bin 2. By setting the protective device 4, the feeding bin 2 can be protected, preventing metal shavings, oil stains and other impurities from entering the feeding bin 2 and mixing with the material, which would cause "black spots" and "lumps" to appear on the film produced by the blown film machine body 1, resulting in unqualified film quality and improving the practicality of the equipment. The display screen 3 is provided with an auxiliary device 5, which can protect the display screen 3, preventing dust, water vapor and other impurities from adhering to the surface of the display screen 3, causing the display screen 3 to be blurry and making it inconvenient for workers to view the display screen 3, thus improving the practicality of the equipment.

[0032] The specific settings and functions of its protective device 4 and auxiliary device 5 will be described in detail below.

[0033] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in this embodiment: the protective device 4 includes two rotating blocks 401, both of which are fixedly connected to the surface of the feed hopper 2. A rotating rod 402 is rotatably connected to the side of the two rotating blocks 401 closest to each other. A protective plate 403 is fixedly connected to the arc surface of the rotating rod 402. A handle 404 is fixedly connected to the surface of the protective plate 403. Two fixed rods 405 are fixedly connected to the surface of the feed hopper 2. An L-shaped plate 406 is slidably connected to the arc surface of the fixed rods 405. A plug rod 407 is fixedly connected to the side of the L-shaped plate 406 closest to the feed hopper 2. Two square blocks 408 are fixedly connected to the surface of the protective plate 403. Slots are provided on the surface of the square blocks 408. When workers need to use the protective plate 403 to protect the blown film machine body 1... When in operation, the handle 404 is moved, causing the protective plate 403 to rotate. The protective plate 403 then rotates the rotating rod 402. When the protective plate 403 rotates to the surface of the feeding bin 2, the insertion rod 407 is positioned directly in front of the slot of the square block 408, pushing the L-shaped plate 406. The L-shaped plate 406 then moves the insertion rod 407. When the insertion rod 407 is inserted into the surface of the slot of the square block 408, it can fix the protective plate 403, thus preventing the protective plate 403 from rotating and reducing its protective effect. Two fixing blocks 409 are fixedly connected to the surface of the feeding bin 2. A limiting rod 410 is slidably inserted into each fixing block 409, with one end of the limiting rod 410 fixed. A limiting block 411 is connected and slidably connected to the surface of the feed hopper 2. When the operator needs to open the protective plate 403, the L-shaped plate 406 is moved, which drives the insertion rod 407 to move. When the insertion rod 407 moves to the appropriate position, it is completely disengaged from the surface of the slot of the square block 408. The limiting rod 410 is then moved, which drives the limiting block 411 to move. When the limiting block 411 moves between the L-shaped plate 406 and the feed hopper 2, it restricts the movement of the insertion rod 407, allowing the operator to open the protective plate 403. After the operator closes the protective plate 403, the limiting rod 410 is moved, which drives the limiting block 411 to move. When the limiting block 411 no longer obstructs the L-shaped plate 406, the operator can then open the protective plate 403. When the L-shaped plate 406 moves, the insert rod 407 is inserted into the surface of the slot in the square block 408. The limiting block 411 effectively restricts the movement of the insert rod 407, preventing it from colliding with the protective plate 403 and causing damage when the operator closes the protective plate 403 without noticing its position. Two torsion springs 412 are fitted on the arc surface of the rotating rod 402. The two ends of the torsion springs 412 are fixedly connected to the rotating block 401 and the protective plate 403, respectively. When the operator needs to open the protective plate 403, the L-shaped plate 406 is moved, causing the insert rod 407 to move. When the insert rod 407 is completely disengaged from the surface of the slot in the square block 408, the torque of the torsion springs 412 causes the protective plate 403 to rotate.The protective plate 403 drives the rotating rod 402 to rotate until the protective plate 403 is fully opened. The torque of the torsion spring 412 achieves the effect of automatically opening the protective plate 403, while keeping the protective plate 403 in the open state, thus facilitating the addition of materials to the feed hopper 2 by the operator.

[0034] Reference Figure 6 and Figure 7 As shown, specifically, the auxiliary device 5 includes two square rods 51, both of which are fixedly connected to the surface of the display screen 3. Each of the two square rods 51 has a sliding hole on its surface, and a sliding block 52 is slidably connected to the surface of each sliding hole. An auxiliary plate 53 is fixedly connected to the side of the two sliding blocks 52 that is close to each other. An L-shaped block 54 is fixedly connected to the surface of the square rods 51, and a round rod 55 is slidably inserted into the L-shaped block 54. Two circular grooves are formed on the surface of the auxiliary plate 53. When the operator needs to use the auxiliary plate 53 to protect the display screen 3, the auxiliary plate 53 is moved, causing the sliding block 52 to move. When the auxiliary plate 53 moves to the front of the display screen 3, it pushes the round rod 55. When the round rod 55 is inserted into the surface of the circular groove of the auxiliary plate 53, the round rod 55 can fix the auxiliary plate 53 in place. Plate 53 effectively secures the auxiliary plate 53, preventing it from wobbling and reducing its protective effect. A spring 56 is fixedly connected to the surface of the sliding block 52, with both ends of the spring 56 fixedly connected to the sliding hole of the square rod 51 and the sliding block 52, respectively. When the operator needs to open the auxiliary plate 53, they move the round rod 55. When the round rod 55 completely disengages from the surface of the circular groove of the auxiliary plate 53, it releases its fixation on the auxiliary plate 53. The rebound force of the spring 56 causes the sliding block 52 to move, which in turn moves the auxiliary plate 53 until it completely detaches from the surface of the display screen 3. The rebound force of the spring 56 automatically opens the auxiliary plate 53, reducing the manual opening steps and improving operator efficiency.

[0035] Working principle: When the operator needs to open the protective plate 403, the L-shaped plate 406 is moved. The L-shaped plate 406 drives the insertion rod 407 to move. When the insertion rod 407 moves to the appropriate position, it is completely disengaged from the surface of the slot of the square block 408. The torque of the torsion spring 412 drives the protective plate 403 to rotate. The protective plate 403 drives the rotating rod 402 to rotate until the protective plate 403 is fully opened. The limit rod 410 is then moved, which drives the limit block 411 to move. When the limit block 411 moves between the L-shaped plate 406 and the feed hopper 2, it restricts the movement of the insertion rod 407. When the operator needs to use the protective plate 403 to protect the blown film machine body 1, the handle 404 is moved. Handle 404 drives protective plate 403 to rotate, and protective plate 403 drives rotating rod 402 to rotate. When protective plate 403 rotates to the surface of feed bin 2, insertion rod 407 is located in front of slot of square block 408. Move limit rod 410, limit rod 410 drives limit block 411 to move. When limit block 411 no longer blocks the movement of L-shaped plate 406, insert insertion rod 407 into the surface of slot of square block 408. At this time, the feed bin 2 can be protected, avoiding metal shavings, oil stains and other impurities from entering the feed bin 2 and mixing with the material, which would cause the film produced by blown film machine body 1 to have "black spots" and "lumps", thus causing the film produced by blown film machine body 1 to be of unqualified quality.

[0036] When staff need to use the auxiliary plate 53 to protect the display screen 3, they move the auxiliary plate 53, which in turn moves the sliding block 52, stretching the spring 56. When the auxiliary plate 53 moves to the front of the display screen 3, it pushes the round rod 55. When the round rod 55 is inserted into the surface of the round groove of the auxiliary plate 53, it can fix the auxiliary plate 53. When staff need to open the auxiliary plate 53, they move the round rod 55. When the round rod 55 is completely detached from the surface of the round groove of the auxiliary plate 53, it releases the fixation of the auxiliary plate 53. The rebound force of the spring 56 drives the sliding block 52 to move, which in turn drives the auxiliary plate 53 to move until the auxiliary plate 53 is completely detached from the surface of the display screen 3. At this point, the display screen 3 is protected, preventing dust, water vapor, and other impurities from adhering to the surface of the display screen 3, which would cause the display screen to become blurry and make it inconvenient for staff to view the display screen 3.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. 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 TPU blown film machine, comprising a blown film machine body (1), characterized in that: The blown film machine body (1) is equipped with a feeding bin (2) and a display screen (3). The surface of the feeding bin (2) is provided with a protective device (4). The protective device (4) includes two rotating blocks (401). Both rotating blocks (401) are fixedly connected to the surface of the feeding bin (2). A rotating rod (402) is rotatably connected to the side of the two rotating blocks (401) that is close to each other. A protective plate (403) is fixedly connected to the arc surface of the rotating rod (402). A handle (404) is fixedly connected to the surface of the protective plate (403).

2. The TPU blown film machine according to claim 1, characterized in that: Two fixed rods (405) are fixedly connected to the surface of the feed hopper (2). An L-shaped plate (406) is slidably connected to the arc surface of the fixed rods (405). An insert rod (407) is fixedly connected to the side of the L-shaped plate (406) near the feed hopper (2). Two square blocks (408) are fixedly connected to the surface of the protective plate (403). The surface of the square blocks (408) is provided with slots.

3. A TPU blown film machine according to claim 1, characterized in that: Two fixing blocks (409) are fixedly connected to the surface of the feed bin (2). A limiting rod (410) is slidably inserted in the fixing block (409). One end of the limiting rod (410) is fixedly connected to a limiting block (411). The limiting block (411) is slidably connected to the surface of the feed bin (2).

4. A TPU blown film machine according to claim 1, characterized in that: The rotating rod (402) has two torsion springs (412) on its arc surface. The two ends of the torsion springs (412) are fixedly connected to the rotating block (401) and the protective plate (403) respectively.

5. A TPU blown film machine according to claim 1, characterized in that: The surface of the display screen (3) is provided with an auxiliary device (5). The auxiliary device (5) includes two square rods (51). Both square rods (51) are fixedly connected to the surface of the display screen (3). The surface of both square rods (51) is provided with sliding holes. Sliding blocks (52) are slidably connected to the surface of the sliding holes of both square rods (51). An auxiliary plate (53) is fixedly connected to the side of the two sliding blocks (52) that are close to each other.

6. A TPU blown film machine according to claim 5, characterized in that: An L-shaped block (54) is fixedly connected to the surface of the square rod (51), and a round rod (55) is slidably inserted into the L-shaped block (54). Two round grooves are opened on the surface of the auxiliary plate (53).

7. A TPU blown film machine according to claim 5, characterized in that: A spring (56) is fixedly connected to the surface of the sliding block (52), and the two ends of the spring (56) are fixedly connected to the sliding hole of the square rod (51) and the sliding block (52) respectively.

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