A new type of shrink film blowing machine for shrink film blowing process

Abstract

The utility model provides a novel shrinkage film blowing machine for shrinkage film blowing processing relates to film blowing machine technical field, the utility model discloses the work table is placed on the ground to the whole provides the support, the upper surface fixed connection of work table has extruder, wherein the inside of extruder is provided with heating assembly, the upper surface fixed connection of extruder has the feed frame, one end fixed connection of extruder has the mould, the herringbone roll is installed on the upper surface of work table by the aid of support, wherein the herringbone roll is located the just above mould, the winding shaft is installed on one side of work table, wherein the winding shaft can be rolled to the shrinkage film, the utility model discloses the filter screen of vibration device setting reached the effect of the filtration to metal particle, avoid metal particle to enter the inside of extruder, the condition of film blowing machine damage happens, avoids metal particle to block the filter screen simultaneously, improved the practicality of filter screen.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and in particular to a novel blown film machine for shrink film blow molding. Background Technology

[0002] A plastic blown film machine melts and extrudes plastic raw materials (plastic granules) into thin tubes through an extruder, and then inflates them with compressed air while they are still hot. The transverse dimension is controlled by the amount of compressed air, and the longitudinal dimension is controlled by the traction speed. After cooling, shaping, and winding, the film product is obtained.

[0003] Existing technology uses plastic particles as raw material that contain a small amount of hard metal objects or metal particles. When these metal particles enter the blown film extruder, they will not be melted by the heating components in the extruder, which can easily lead to damage to the blown film extruder. Utility Model Content

[0004] This utility model proposes a novel blown film machine for shrink film blow molding to overcome the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel blown film machine for shrink film blow molding, comprising a worktable placed on the ground to provide support for the whole, an extruder fixedly connected to the upper surface of the worktable, wherein a heating component is provided inside the extruder, a feed frame is fixedly connected to the upper surface of the extruder, a mold is fixedly connected to one end of the extruder, a herringbone roller is mounted on the upper surface of the worktable by means of a bracket, wherein the herringbone roller is located directly above the mold, a winding shaft is mounted on one side of the worktable, wherein the winding shaft can wind up the shrink film, and a vibration device is disposed inside the feed frame, the vibration device comprising a filter screen that can vibrate repeatedly.

[0006] The effect achieved by the above components is as follows: When processing the shrink film, the worker feeds the plastic particles into the inside of the feed frame, and the repeatedly vibrating filter screen filters the plastic particles while preventing the filter screen from clogging. After the plastic particles are fed into the extruder, the heating component of the extruder melts the plastic particles and sends them into the inside of the mold. The melted plastic particles form a shrink film, the herringbone roller squeezes the shrink film, and finally the winding shaft winds up the shrink film.

[0007] Preferably, the vibration device further includes a motor, which is installed on the outside of the feed frame. The motor is fixedly connected to an eccentric circle via a reducer, wherein the eccentric circle is located inside the feed frame. A fixing ring is fixedly connected inside the feed frame, and a plurality of springs are fixedly connected to the upper surface of the fixing ring. The other end of the springs is fixedly connected to a filter screen, wherein the size of the filter screen is adapted to the internal size of the feed frame.

[0008] The effect achieved by the above components is as follows: After the plastic particles enter the feeding frame, the operator turns on the motor, which rotates the eccentric circle. After the protruding end of the eccentric circle moves to the filter screen, the filter screen moves away from the fixed ring. The spring deforms. When the protruding end of the eccentric circle moves away from the filter screen, the filter screen moves towards the fixed ring under the action of the spring's restoring force. As the eccentric circle rotates continuously, the filter screen moves up and down repeatedly, thus preventing metal particles from clogging the filter screen. The filter screen set by the vibration device achieves the effect of filtering metal particles, preventing metal particles from entering the interior of the extruder and damaging the blown film machine. At the same time, it prevents metal particles from clogging the filter screen, improving the practicality of the filter screen.

[0009] Preferably, a plurality of telescopic rods are fixedly connected to the upper surface of the fixing ring, wherein one end of the telescopic rod is fixedly connected to the filter screen.

[0010] The effect achieved by the above components is that by setting the telescopic rod, the movement direction of the filter screen is restricted, thereby improving the stability of the filter screen movement.

[0011] Preferably, a guide ring is fixedly connected to the upper surface of the filter screen, wherein the guide ring has a ramp inside.

[0012] The effect achieved by the above components is that by setting the guide ring, the plastic particles are guided, making it easier for them to pass through the filter screen.

[0013] Preferably, a protective ring is fixedly connected to the bottom of the filter screen, wherein the protective ring passes through the inside of the fixed ring.

[0014] The effect achieved by the above components is that by setting up a protective ring, the plastic particles are limited, preventing them from accumulating above the fixing ring.

[0015] Preferably, an auxiliary device is provided on one side of the feeding frame. The auxiliary device includes a discharge pipe, which is fixedly connected to one side of the feeding frame. One end of the discharge pipe has a threaded groove, and a collection pipe is provided at one end of the discharge pipe. The collection pipe has a threaded block inside, which is threaded and adapted to the threaded groove. A magnet is fixedly connected inside the discharge pipe, which can attract metal particles. An insert plate is slidably inserted into the arc surface of the discharge pipe, and the end of the insert plate inside the discharge pipe is arc-shaped.

[0016] The aforementioned components achieve the following effect: When it is necessary to clean the metal particles on the filter screen, the operator first moves the collection tube, which is detachably installed at one end of the discharge tube via a threaded block and threaded groove. Then, the operator pulls the insert plate, which loosens the blockage on the discharge tube. Under the magnetic force of the magnet inside the collection tube, the metal particles pass through the discharge tube and enter the interior of the collection tube, thus achieving the effect of collecting the metal particles. The auxiliary device achieves the effect of collecting the metal particles on the filter screen, making it convenient for the operator to uniformly process the metal particles.

[0017] Preferably, the end of the insert plate located outside the discharge pipe has an operating hole, wherein the cross-section of the operating hole is rectangular.

[0018] The effect achieved by the above-mentioned components is that the operation holes facilitate the movement of the insert plate by the staff, thus bringing convenience to the staff.

[0019] Preferably, the arc surface of the collecting tube is fixedly connected with a plurality of anti-slip strips, wherein the plurality of anti-slip strips are distributed in a circular pattern.

[0020] The effect achieved by the above-mentioned components is to increase the contact area between the collection tube and the worker's hand by setting anti-slip strips, thereby making it easier for the worker to rotate the collection tube.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] After the plastic particles enter the feed box, the operator turns on the motor. The motor rotates the eccentric circle, and the protruding end of the eccentric circle moves to the filter screen. The filter screen then moves away from the fixed ring, causing the spring to deform. When the protruding end of the eccentric circle moves away from the filter screen, the filter screen moves towards the fixed ring under the spring's restoring force. As the eccentric circle continues to rotate, the filter screen moves up and down repeatedly, thus preventing metal particles from clogging the filter screen. The filter screen, set by the vibration device, achieves the effect of filtering metal particles, preventing metal particles from entering the extruder and damaging the blown film machine. At the same time, it prevents metal particles from clogging the filter screen, improving the practicality of the filter screen. Attached Figure Description

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

[0024] Figure 2 This is a three-dimensional structural diagram of the feed frame of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the vibration device of this utility model;

[0026] Figure 4This is a three-dimensional structural diagram of the auxiliary device of this utility model.

[0027] Legend: 1. Workbench; 2. Extruder; 3. Feed frame; 4. Die; 5. Herringbone roller; 6. Rewinding shaft; 7. Vibration device; 71. Motor; 72. Eccentric circle; 73. Fixing ring; 74. Spring; 75. Filter screen; 76. Protective ring; 77. Telescopic rod; 78. Guide ring; 8. Auxiliary device; 81. Discharge pipe; 82. Collection pipe; 83. Anti-slip strip; 84. Insert plate; 85. Operating hole. Detailed Implementation

[0028] Reference Figure 1-4 As shown, this embodiment discloses a novel blown film machine for shrink film blow molding, including a worktable 1, which is placed on the ground to provide support for the whole. An extruder 2 is fixedly connected to the upper surface of the worktable 1, wherein a heating component is provided inside the extruder 2, and a feed frame 3 is fixedly connected to the upper surface of the extruder 2. A mold 4 is fixedly connected to one end of the extruder 2; a herringbone roller 5 and a winding shaft 6, wherein the herringbone roller 5 is mounted on the upper surface of the worktable 1 with the aid of a bracket, wherein the herringbone roller 5 is located directly above the mold 4, and the winding shaft 6 is mounted on one side of the worktable 1, wherein the winding shaft 6 can wind up the shrink film; and a vibration device 7, which is disposed inside the feed frame 3, and the vibration device 7 includes a filter screen 75 that can be repeatedly vibrated. During the processing of shrink film, the worker feeds plastic particles into the inside of the feed frame 3. The repeatedly vibrating filter screen 75 filters the plastic particles while preventing the filter screen 75 from clogging. After the plastic particles are fed into the extruder 2, the heating component of the extruder 2 melts the plastic particles and sends them into the inside of the mold 4. The melted plastic particles form a shrink film. The herringbone roller 5 extrudes the shrink film, and finally the winding shaft 6 winds up the shrink film.

[0029] Reference Figure 1-4As shown, the vibration device 7 also includes a motor 71, which is installed on the outside of the feed frame 3. The motor 71 is fixedly connected to an eccentric circle 72 by means of a reducer. The eccentric circle 72 is located inside the feed frame 3. A fixing ring 73 is fixedly connected inside the feed frame 3. Several springs 74 are fixedly connected to the upper surface of the fixing ring 73. The other end of the springs 74 is fixedly connected to a filter screen 75. The size of the filter screen 75 is adapted to the internal size of the feed frame 3. After the plastic particles enter the feed frame 3, the operator turns on the motor 71. The motor 71 rotates the eccentric circle 72. After the protruding end of the eccentric circle 72 moves to the filter screen 75, the filter screen 75 moves away from the fixed ring 73. The spring 74 deforms. When the protruding end of the eccentric circle 72 moves away from the filter screen 75, the filter screen 75 moves towards the fixed ring 73 under the action of the spring 74's restoring force. As the eccentric circle 72 continues to rotate, the filter screen 75 moves up and down repeatedly, thus preventing metal particles from clogging the filter screen 75. The filter screen 75 set by the vibration device 7 achieves the effect of filtering metal particles, preventing metal particles from entering the extruder 2 and damaging the blown film machine. At the same time, it prevents metal particles from clogging the filter screen 75, improving the practicality of the filter screen 75.

[0030] Reference Figure 1-4 As shown, several telescopic rods 77 are fixedly connected to the upper surface of the fixing ring 73, with one end of each rod 77 fixedly connected to the filter screen 75. The telescopic rods 77 restrict the movement direction of the filter screen 75, improving its stability. A guide ring 78 is fixedly connected to the upper surface of the filter screen 75, with a ramp inside. The guide ring 78 guides the plastic particles, facilitating their passage through the filter screen 75. A protective ring 76 is fixedly connected to the bottom of the filter screen 75, passing through the interior of the fixing ring 73. The protective ring 76 limits the movement of the plastic particles, preventing them from accumulating above the fixing ring 73.

[0031] Reference Figure 1-4As shown, an auxiliary device 8 is provided on one side of the feed frame 3. The auxiliary device 8 includes a discharge pipe 81, which is fixedly connected to one side of the feed frame 3. One end of the discharge pipe 81 is provided with a threaded groove, and a collection pipe 82 is provided at the other end of the discharge pipe 81. A threaded block is provided inside the collection pipe 82, and the threaded block is threaded to fit the threaded groove. A magnet is fixedly connected inside the discharge pipe 81, which can attract metal particles. An insert plate 84 is slidably installed on the arc surface of the discharge pipe 81, and the end of the insert plate 84 located inside the discharge pipe 81 is arc-shaped. When it is necessary to clean the metal particles on the filter screen 75, the staff first moves the collection tube 82. The collection tube 82 is detachably installed at one end of the discharge tube 81 through a threaded block and a threaded groove. Then, the staff pulls the insert plate 84, which loosens the blockage on the discharge tube 81. Under the action of the magnetic force of the magnet inside the collection tube 82, the metal particles enter the interior of the collection tube 82 through the discharge tube 81, thus achieving the effect of collecting the metal particles. The auxiliary device 8 achieves the effect of collecting the metal particles on the filter screen 75, making it convenient for the staff to uniformly process the metal particles.

[0032] Reference Figure 1-4 As shown, an operating hole 85 is provided at one end of the insert plate 84 located outside the discharge pipe 81, and the operating hole 85 has a rectangular cross-section. The operating hole 85 facilitates the movement of the insert plate 84 by the operator, providing convenience. Several anti-slip strips 83 are fixedly connected to the arc surface of the collection pipe 82, and these anti-slip strips 83 are distributed circumferentially. The anti-slip strips 83 increase the contact area between the collection pipe 82 and the operator's hand, thereby facilitating the rotation of the collection pipe 82.

[0033] Working Principle: During the processing of shrink film, the operator feeds plastic particles into the feed frame 3. The operator then turns on motor 71, which rotates the eccentric circle 72. After the protruding end of the eccentric circle 72 moves to the filter screen 75, the filter screen 75 moves away from the fixed ring 73. The spring 74 deforms. When the protruding end of the eccentric circle 72 moves away from the filter screen 75, the filter screen 75 moves towards the fixed ring 73 under the restoring force of the spring 74. As the eccentric circle 72 continues to rotate, the filter screen 75 repeatedly moves up and down, thus preventing metal particles from clogging the filter screen 75. The repeatedly vibrating filter screen 75 filters the plastic particles while preventing… The filter screen 75 is clogged, but the protective ring 76 at the bottom of the filter screen 75 effectively limits the plastic particles, preventing them from entering the spring 74 and the fixing ring 73. After the plastic particles are fed into the extruder 2, the heating component of the extruder 2 melts the plastic particles and sends them into the mold 4. The melted plastic particles form a shrink film, which is then squeezed by the herringbone roller 5 and finally wound up by the winding shaft 6. The filter screen 75, set by the vibration device 7, effectively filters metal particles, preventing them from entering the extruder 2 and damaging the blown film machine. It also prevents metal particles from clogging the filter screen 75, thus improving its practicality.

[0034] When it is necessary to clean the metal particles on the filter screen 75, the staff first moves the collection tube 82 with the help of the anti-slip strip 83. The collection tube 82 is detachably installed at one end of the discharge tube 81 through the threaded block and threaded groove. Then, the staff pulls the insert plate 84 through the operating hole 85. The insert plate 84 loosens the blockage on the discharge tube 81. Under the action of the magnetic force of the magnet inside the collection tube 82, the metal particles enter the interior of the collection tube 82 through the discharge tube 81, achieving the effect of collecting the metal particles. The auxiliary device 8 achieves the effect of collecting the metal particles on the filter screen 75, making it convenient for the staff to uniformly process the metal particles.

Claims

1. A novel blown film machine for shrink film blow molding, characterized in that: Includes a workbench (1), which is placed on the ground to provide support for the whole. An extruder (2) is fixedly connected to the upper surface of the workbench (1). A heating component is provided inside the extruder (2). A feed frame (3) is fixedly connected to the upper surface of the extruder (2). A mold (4) is fixedly connected to one end of the extruder (2). A herringbone roller (5) and a take-up shaft (6) are provided. The herringbone roller (5) is mounted on the upper surface of the workbench (1) by means of a bracket, wherein the herringbone roller (5) is located directly above the mold (4), and the take-up shaft (6) is mounted on one side of the workbench (1), wherein the take-up shaft (6) can take up the shrink film. Vibration device (7) is disposed inside the feed frame (3) and includes a filter screen (75) that can be repeatedly vibrated.

2. The blown film machine for shrink film blow molding according to claim 1, characterized in that: The vibration device (7) also includes a motor (71), which is installed on the outside of the feed frame (3). The motor (71) is fixedly connected to an eccentric circle (72) by means of a reducer. The eccentric circle (72) is located inside the feed frame (3). A fixing ring (73) is fixedly connected inside the feed frame (3). Several springs (74) are fixedly connected to the upper surface of the fixing ring (73). The other end of the spring (74) is fixedly connected to the filter screen (75). The size of the filter screen (75) is adapted to the internal size of the feed frame (3).

3. The blown film machine for shrink film blow molding according to claim 2, characterized in that: Several telescopic rods (77) are fixedly connected to the upper surface of the fixed ring (73), wherein one end of the telescopic rod (77) is fixedly connected to the filter screen (75).

4. A novel blown film machine for shrink film blow molding according to claim 2, characterized in that: The upper surface of the filter screen (75) is fixedly connected to a guide ring (78), wherein the inside of the guide ring (78) is provided with a slope.

5. A novel blown film machine for shrink film blow molding according to claim 2, characterized in that: The bottom of the filter screen (75) is fixedly connected to a protective ring (76), wherein the protective ring (76) passes through the interior of the fixed ring (73).

6. A novel blown film machine for shrink film blow molding according to claim 1, characterized in that: An auxiliary device (8) is provided on one side of the feed frame (3). The auxiliary device (8) includes a discharge pipe (81). The discharge pipe (81) is fixedly connected to one side of the feed frame (3). A threaded groove is provided at one end of the discharge pipe (81). A collection pipe (82) is provided at one end of the discharge pipe (81). A threaded block is provided inside the collection pipe (82). The threaded block is threaded and adapted to the threaded groove. A magnet is fixedly connected inside the discharge pipe (81). The magnet can attract metal particles. Insert plate (84), wherein the insert plate (84) is slidably disposed on the arc surface of the discharge pipe (81), wherein one end of the insert plate (84) located inside the discharge pipe (81) is arc-shaped.

7. A novel blown film machine for shrink film blow molding according to claim 6, characterized in that: The insert plate (84) has an operation hole (85) at one end outside the discharge pipe (81), wherein the cross-section of the operation hole (85) is rectangular.

8. A novel blown film machine for shrink film blow molding according to claim 6, characterized in that: The arc surface of the collection tube (82) is fixedly connected with several anti-slip strips (83), and the anti-slip strips (83) are distributed in a circular pattern.

Images