High-uniformity extrusion mechanism for easy-to-peel transfer film and production line of high-uniformity extrusion mechanism

Abstract

The utility model relates to the technical field of casting machines, in particular to a high-uniformity extrusion mechanism of an easy-to-peel transfer film and a production line of the high-uniformity extrusion mechanism, the high-uniformity extrusion mechanism comprises a conveying pipe, a mold, a cutting frame and a film, the conveying pipe comprises a funnel, a screw rod, a temperature control box and a motor, the conveying pipe is of a hollow tubular structure, and the mold is arranged at one end of the conveying pipe; the pair of cutting frames is placed under the mold, a film flows out of the mold, is trimmed by the cutting frames and then is wound in the cutting frames, the funnel is vertically inserted into the conveying pipe and located at the end, away from the mold, of the conveying pipe, and the screw rod is installed in the conveying pipe. The heating temperature and the heating time of different raw materials are manually adjusted by using the temperature control box, so that the raw materials are uniformly extruded, the production quality is improved, the air pressure in the conveying pipe is effectively balanced by using the ventilation box and the filter screen, the service life is prolonged while pollution is avoided, the conveying pipe, the mold and the cutting frame operate independently, and the production efficiency is improved. And the maintenance is convenient while quick mounting and dismounting are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-type extruders, in particular to a high-uniformity extrusion mechanism for an easily peelable transfer film and a production line thereof. Background Art

[0002] Extruders are widely used in the processing of plastic products. The production of plastic films is completed by cooling, shaping and trimming the molten raw materials. At present, the plastic films produced by factories are not evenly distributed, which will cause a lot of waste when trimming the films in the later stage, seriously affecting the quality and efficiency of production. Therefore, a uniform extrusion extruder is needed to efficiently produce plastic films.

[0003] Chinese patent publication number CN116118139A discloses a cast extruder for TPX release film. In the process of pulling the plastic film by the pulling roller, the controller controls the output end of the electric control slide to drive the lifting seat to move downward until the sliding frame contacts the mounting frame, the driven roller contacts the peeling roller tightly, and the indentation knife indents the front and back sides of the plastic film. As the pulling roller pulls the plastic film, the two cutters cut the residual material on both sides of the plastic film. The controller controls the output end of the electric control slide to drive the lifting seat to continue to move downward. In this process, the spring between the mounting plate and the sliding frame is compressed, and the distance between the mounting plate and the sliding frame is shortened. Under the connection of the two second connecting rods, the two first connecting rods drive the two baffles to rotate downward, and the blades at the bottom of the two baffles cut off the residual material on the front and back sides of the plastic film. Therefore, the technical solution of cutting after limiting the indentation is adopted, and the residual material can be automatically removed.

[0004] There are still several points for improvement in the above scheme: different materials have different melting points, and heating components are required to heat and melt different materials; the waste gas generated during melting needs to be discharged in time. Utility Model Content

[0005] In order to solve the problems of the prior art, the utility model provides a high uniformity extrusion mechanism for an easy-to-peel transfer film, comprising a conveying tube, a mold, a cutting frame and a film, the conveying tube comprising a funnel, a screw, a temperature control box and a motor, the conveying tube is a hollow tubular structure, the mold is installed at one end of the conveying tube, the cutting frame is a pair and is placed directly below the mold, the film flows out of the mold, is trimmed by the cutting frame and is rolled up in the cutting frame, the funnel is vertically inserted into the conveying tube and is located at the end of the conveying tube away from the mold, the screw is installed inside the conveying tube, the motor is installed on the other end of the conveying tube opposite to the mold and is fixedly connected to the screw, and the temperature control box is arranged in the middle of the conveying tube and surrounds the outside of the conveying tube.

[0006] Preferably, the screw comprises a pulverizing rod, a pulverizing disk and a flow limiting disk, the pulverizing rod is arranged between two screws, the pulverizing disk is annularly fixed on the pulverizing rod, and the flow limiting disk is arranged at one end of the pulverizing rod and close to one side of the mold.

[0007] Preferably, the temperature control box includes a ventilation box, a heating needle, a heating ring and a pinhole. The ventilation box is vertically installed in the delivery pipe and is directly above the temperature control box. The heating ring is in the temperature control box and surrounds the outside of the delivery pipe. The pinhole array is arranged on the arc surface of the heating ring and penetrates the wall of the delivery pipe. The heating needle is installed in the temperature control box and inserted into the pinhole.

[0008] Preferably, the ventilation box includes a filter, a protrusion and a ventilation groove, the ventilation groove is arranged on the upper surface of the heating ring, the protrusion is arranged at the bottom of the ventilation box and is interlocked with the ventilation groove, and the filter is placed flat in the ventilation box.

[0009] Preferably, the heating needle includes a bottom shell, a needle head and a fire guide hole, the bottom shell is installed at the bottom of the heating needle and connected to the temperature control box, the needle head is installed on the top of the heating needle, and the fire guide hole is set at the inner center of the heating needle.

[0010] Preferably, the mold includes a flange, a base, a support rod and an extrusion nozzle. The flange is arranged on the outside of the port of the conveying pipe, the base is fitted with the flange and connected to the bottom of the mold, the extrusion nozzle is arranged at the top of the mold, one end of the support rod is connected to the base, and the other end is connected to the extrusion nozzle.

[0011] Preferably, the cutting frame includes a cooling roller, a steering roller, a winding roller and a cutting gear. Two cooling rollers are relatively installed on the cutting frame, the steering roller is arranged on the cutting frame and is below the cooling roller, the cutting gear is arranged on the cutting frame and is above the steering roller, and the winding roller is arranged on the cutting frame and is above the cooling roller. The film passes through the cooling roller, the steering roller and the cutting gear from the mold and is then wound onto the winding roller.

[0012] Preferably, the cutting gear comprises a rotating shaft and a casing, the cutting gear is fixedly connected to the casing and rotatably mounted on the rotating shaft, and the rotating shaft is arranged on the cutting frame so that the cutting gear contacts the film.

[0013] A production line for an easily peelable transfer film is also provided, comprising the high-uniformity extrusion mechanism for the easily peelable transfer film described above.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model uses a temperature control box to manually adjust the heating temperature and heating time for different raw materials, so that the raw materials are uniformly extruded to improve the production quality. Specifically, the rod rotates and the granular raw materials enter the conveying pipe of the temperature control box section along the thread on the screw rod, so that the raw materials are formed into a uniform molten fluid according to the melting points of different raw materials, thereby improving the finished product rate of the film after extrusion and reducing the waste of raw materials;

[0016] 2. The utility model uses a vent box and a filter to effectively balance the air pressure inside the delivery pipe, avoiding pollution while increasing the service life. Specifically, a large amount of gas is generated when melting solid particles. A vent box is provided on the top of the delivery pipe. The high-temperature gas floats up and passes through the vent box and is discharged to balance the air pressure in the delivery pipe. The filter is used to filter the gas to avoid polluting the environment. The filter can be quickly removed from the vent box for easy cleaning and replacement;

[0017] 3. The conveying pipe, mold and cutting frame of the utility model operate independently, can be quickly installed and disassembled, and are easy to maintain. Specifically, the mold is fixed on the conveying pipe by a base and a flange, which is convenient and quick to install and disassemble. The cutting machine is placed directly under the mold and can be directly moved and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a high uniformity extrusion mechanism for an easy-to-peel transfer film.

[0019] Figure 2 The present invention is a cross-sectional view of a delivery tube in a high uniformity extrusion mechanism for an easy-to-peel transfer film.

[0020] Figure 3 A three-dimensional diagram of a screw in a high uniformity extrusion mechanism for an easy-to-peel transfer film.

[0021] Figure 4 A three-dimensional diagram of a temperature control box in a high uniformity extrusion mechanism for an easy-to-peel transfer film.

[0022] Figure 5 A three-dimensional diagram of a vent box in a high uniformity extrusion mechanism for an easy-to-peel transfer film.

[0023] Figure 6 A three-dimensional diagram of a heating needle in a high uniformity extrusion mechanism for an easy-to-peel transfer film.

[0024] Figure 7 A three-dimensional diagram of a die in a high uniformity extrusion mechanism for an easy-to-peel transfer film.

[0025] Figure 8 A three-dimensional diagram of a cutting frame in a high uniformity extrusion mechanism for an easy-to-peel transfer film.

[0026] The numbers in the figure are: 1. conveying pipe; 2. funnel; 3. screw; 31. crushing rod; 32. crushing disk; 33. current limiting disk; 4. temperature control box; 41. ventilation box; 411. filter screen; 412. bump; 413. ventilation groove; 42. heating needle; 421. bottom shell; 422. needle head; 423. flame guide hole; 43. heating ring; 44. pinhole; 5. motor; 6. mold; 61. flange; 62. base; 63. support rod; 64. extrusion nozzle; 7. cutting frame; 71. cooling roller; 72. steering roller; 73. winding roller; 74. cutting gear; 741. rotating shaft; 742. casing; 8. film. DETAILED DESCRIPTION

[0027] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] See also Figure 1 to Figure 8 As shown, a high uniformity extrusion mechanism for an easily peelable transfer film comprises a conveying tube 1, a mold 6, a cutting frame 7 and a film 8. The conveying tube 1 comprises a funnel 2, a screw 3, a temperature control box 4 and a motor 5. The conveying tube 1 is a hollow tubular structure. The mold 6 is installed at one end of the conveying tube 1. The cutting frame 7 is a pair and is placed directly below the mold 6. The film 8 flows out from the mold 6 and is trimmed by the cutting frame 7 and then rolled up in the cutting frame 7. The funnel 2 is vertically inserted into the conveying tube 1 and is located at the end of the conveying tube 1 away from the mold 6. The screw 3 is installed inside the conveying tube 1. The motor 5 is installed on the other end of the conveying tube 1 opposite to the mold 6 and is fixedly connected to the screw 3. The temperature control box 4 is arranged in the middle of the conveying tube 1 and surrounds the outer side of the conveying tube 1.

[0029] The device heats the raw material through a conveying pipe 1 and then delivers it to a mold 6, the mold 6 extrude the raw material in a molten state, and then the film 8 is rolled up after cooling and shaping by a cutting frame 7. The funnel 2 is used to fill the solid granular raw material into the conveying pipe 1, and the motor 5 provides power for the screw 3. The screw 3 rotates and allows the granular raw material to enter the conveying pipe 1 of the temperature control box 4 along the thread on the screw 3. The heating temperature and heating path are manually adjusted through the temperature control box 4 to form a uniform molten fluid according to the melting point of different raw materials, thereby improving the yield rate of the film 8 after extrusion and reducing the waste of raw materials.

[0030] See also Figure 1~Figure 3 As shown, the screw 3 includes a crushing rod 31, a crushing disk 32 and a flow limiting disk 33. The crushing rod 31 is arranged between the two screws 3, the crushing disk 32 is annularly fixed on the crushing rod 31, and the flow limiting disk 33 is arranged at one end of the crushing rod 31 and close to the mold 6.

[0031] The crushing rod 31 is in the conveying pipe 1 of the temperature control box 4 section, and the crushing disk 32 is used to assist the melting of solid particles. When the solid particles enter the crushing rod 31 along the threads on the screw 3, the temperature control box 4 outside the conveying pipe 1 heats and melts the solid particles. The crushing disk 32 stirs the solid particles and heats them evenly. The molten fluid passes through the limiting disk 33 and continues to enter the mold 6 along the threads on the screw 3. The solid granular raw materials are blocked by the limiting disk 33 and continue to be heated until they melt.

[0032] See also Figure 1~Figure 5 As shown, the temperature control box 4 includes a ventilation box 41, a heating needle 42, a heating ring 43 and a pinhole 44. The ventilation box 41 is vertically installed in the conveying pipe 1 and is directly above the temperature control box 4. The heating ring 43 is in the temperature control box 4 and surrounds the outer side of the conveying pipe 1. The pinhole 44 array is arranged on the arc surface of the heating ring 43 and penetrates the pipe wall of the conveying pipe 1. The heating needle 42 is installed in the temperature control box 4 and inserted into the pinhole 44.

[0033] A large amount of gas will be generated when melting solid particles. In order to prevent the conveying pipe 1 from being damaged by air pressure, a ventilation box 41 is provided on the top of the conveying pipe 1. The high-temperature gas floats up and passes through the ventilation box 41 and is discharged to balance the air pressure in the conveying pipe 1. The pinhole 44 is used to provide positioning for the installation of the heating needle 42. The heating needle 42 is arranged in an array and the specific number of the heating needles 42 is determined according to manual needs so as to be suitable for the melting of various types of raw materials. The heating ring 43 is used to seal the gap at the pinhole 44 to improve the heating effect.

[0034] See also Figure 4~Figure 5 As shown, the ventilation box 41 includes a filter 411, a protrusion 412 and a ventilation groove 413. The ventilation groove 413 is arranged on the upper surface of the heating ring 43, the protrusion 412 is arranged at the bottom of the ventilation box 41 and is interlocked with the ventilation groove 413, and the filter 411 is placed flat in the ventilation box 41.

[0035] The ventilation groove 413 is used to provide positioning for the installation of the ventilation box 41, and the protrusion 412 enables the ventilation box 41 to be stuck in the ventilation groove 413 and will not fall off the conveying pipe 1. Since most of the gases generated when melting solid particles are harmful gases, the filter 411 is used to filter the gases to avoid polluting the environment. The filter 411 can be quickly removed from the ventilation box 41 for easy cleaning and replacement.

[0036] See also Figure 4~Figure 6 As shown, the heating needle 42 includes a bottom shell 421, a needle head 422 and a fire guide hole 423. The bottom shell 421 is installed at the bottom of the heating needle 42 and connected to the temperature control box 4. The needle head 422 is installed on the top of the heating needle 42. The fire guide hole 423 is set in the inner center of the heating needle 42.

[0037] The bottom shell 421 is connected to the temperature control box 4. During heating, a high-temperature flame is sprayed into the interior of the delivery pipe 1 through the fire guide hole 423 and the pressure of the needle 422. The needle 422 is aligned with the crushing disk 32 on the screw 3 in the delivery pipe 1, which facilitates uniform heating while avoiding contact between the needle 422 and the screw 3 to cause damage to parts.

[0038] See also Figure 1 to Figure 7 As shown, the mold 6 includes a flange 61, a base 62, a support rod 63 and an extrusion nozzle 64. The flange 61 is arranged on the outside of the port of the conveying pipe 1, the base 62 is fitted with the flange 61 and connected to the bottom of the mold 6, the extrusion nozzle 64 is arranged at the top of the mold 6, one end of the support rod 63 is connected to the base 62, and the other end is connected to the extrusion nozzle 64.

[0039] The mold 6 is fixed on the conveying pipe 1 by a base 62 and a flange 61, which can be easily and quickly installed and disassembled so that the extrusion mechanism can produce products of different shapes to adapt to the working intensity of the assembly line. The support rod 63 is used to reduce the supporting pressure of the mold 6 on the extrusion nozzle 64, and the extrusion nozzle 64 delivers the molten raw material into the cutting frame 7 in a linear fluid state.

[0040] See also Figure 1 to Figure 8 As shown, the cutting frame 7 includes a cooling roller 71, a steering roller 72, a winding roller 73 and a cutting gear 74. The cooling roller 71 has two rollers relatively installed on the cutting frame 7. The steering roller 72 is arranged on the cutting frame 7 and is below the cooling roller 71. The cutting gear 74 is arranged on the cutting frame 7 and is above the steering roller 72. The winding roller 73 is arranged on the cutting frame 7 and is above the cooling roller 71. The film 8 passes through the cooling roller 71, the steering roller 72 and the cutting gear 74 from the mold 6 and is then wound on the winding roller 73.

[0041] The cooling roller 71 is used to cool and shape the molten raw material. The distance between the two cooling rollers 71 determines the thickness of the produced film 8. The winding roller 73 pulls the film 8, and the steering roller changes the movement direction of the film 8 to facilitate cutting and trimming. The cutting gear 74 is used to cut the edge of the film 8 to make it more beautiful.

[0042] See also Figure 8 As shown, the cutting gear 74 includes a rotating shaft 741 and a casing 742 . The cutting gear 74 is fixedly connected to the casing 742 and rotatably mounted on the rotating shaft 741 . The rotating shaft 741 is disposed on the cutting frame 7 so that the cutting gear 74 contacts the film 8 .

[0043] The sleeve 742 enables the cutting gear 74 to move left and right on the rotating shaft 741. By adjusting the distance between the two cutting gears 74, the width of the film 8 received on the winding roller 73 can be determined. At the same time, the waste material after cutting falls out of the cutting frame 7 under the action of gravity, which is convenient for collection and secondary processing.

[0044] A production line for easily peelable transfer films comprises the high-uniformity extrusion mechanism for easily peelable transfer films described above.

[0045] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A high uniformity extrusion mechanism for an easily peelable transfer film, comprising a conveying tube (1), a die (6), a cutting frame (7) and a film (8); It is characterized in that The conveying tube (1) comprises a funnel (2), a screw (3), a temperature control box (4) and a motor (5). The conveying tube (1) is a hollow tubular structure. The mold (6) is installed at one end of the conveying tube (1). A pair of cutting frames (7) are placed directly below the mold (6). The film (8) flows out of the mold (6), is trimmed by the cutting frame (7), and is rolled up in the cutting frame (7). The funnel (2) is vertically inserted into the conveying tube (1) and is located at the end of the conveying tube (1) away from the mold (6). The screw (3) is installed inside the conveying tube (1). The motor (5) is installed at the other end of the conveying tube (1) opposite to the mold (6) and is fixedly connected to the screw (3). The temperature control box (4) is arranged in the middle of the conveying tube (1) and surrounds the outer side of the conveying tube (1).

2. The high uniformity extrusion mechanism for an easily peelable transfer film according to claim 1, characterized in that: The screw rod (3) comprises a crushing rod (31), a crushing disc (32) and a flow limiting disc (33); the crushing rod (31) is arranged between the two screw rods (3); the crushing disc (32) is annularly fixed on the crushing rod (31); and the flow limiting disc (33) is arranged at one end of the crushing rod (31) and close to the side of the mold (6).

3. The high uniformity extrusion mechanism for an easily peelable transfer film according to claim 1, characterized in that: The temperature control box (4) comprises a ventilation box (41), a heating needle (42), a heating ring (43) and a pinhole (44); the ventilation box (41) is vertically installed in the delivery tube (1) and is located directly above the temperature control box (4); the heating ring (43) is located in the temperature control box (4) and surrounds the outer side of the delivery tube (1); an array of pinholes (44) is arranged on the arc surface of the heating ring (43) and penetrates the tube wall of the delivery tube (1); and the heating needle (42) is installed in the temperature control box (4) and inserted into the pinhole (44).

4. The high uniformity extrusion mechanism for an easily peelable transfer film according to claim 3, characterized in that: The ventilation box (41) comprises a filter screen (411), a protrusion (412) and a ventilation groove (413); the ventilation groove (413) is arranged on the upper surface of the heating ring (43); the protrusion (412) is arranged at the bottom of the ventilation box (41) and is interlocked with the ventilation groove (413); and the filter screen (411) is placed flat in the ventilation box (41).

5. The high uniformity extrusion mechanism for an easily peelable transfer film according to claim 3, characterized in that: The heating needle (42) comprises a bottom shell (421), a needle head (422) and a fire guide hole (423); the bottom shell (421) is mounted on the bottom of the heating needle (42) and connected to the temperature control box (4); the needle head (422) is mounted on the top of the heating needle (42); and the fire guide hole (423) is arranged at the inner center of the heating needle (42).

6. The high uniformity extrusion mechanism for an easily peelable transfer film according to claim 1, characterized in that: The mold (6) comprises a flange (61), a base (62), a support rod (63) and an extrusion nozzle (64); the flange (61) is arranged outside the port of the delivery pipe (1); the base (62) is fitted with the flange (61) and connected to the bottom of the mold (6); the extrusion nozzle (64) is arranged at the top of the mold (6); one end of the support rod (63) is connected to the base (62) and the other end is connected to the extrusion nozzle (64).

7. The high uniformity extrusion mechanism for an easily peelable transfer film according to claim 1, characterized in that: The cutting frame (7) comprises a cooling roller (71), a steering roller (72), a winding roller (73) and a cutting gear (74). Two cooling rollers (71) are relatively mounted on the cutting frame (7). The steering roller (72) is arranged on the cutting frame (7) and is located below the cooling roller (71). The cutting gear (74) is arranged on the cutting frame (7) and is located above the steering roller (72). The winding roller (73) is arranged on the cutting frame (7) and is located above the cooling roller (71). The film (8) is passed through the cooling roller (71), the steering roller (72) and the cutting gear (74) from the mold (6) and is then wound onto the winding roller (73).

8. The high uniformity extrusion mechanism for an easily peelable transfer film according to claim 7, characterized in that: The cutting gear (74) comprises a rotating shaft (741) and a casing (742). The cutting gear (74) is fixedly connected to the casing (742) and rotatably mounted on the rotating shaft (741). The rotating shaft (741) is arranged on the cutting frame (7) so that the cutting gear (74) contacts the film (8).

9. A production line for an easily peelable transfer film, characterized in that: The invention comprises a high uniformity extrusion mechanism for an easily peelable transfer film as described in any one of claims 1 to 8.

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