Wide extrusion type coating machine for semiconductor adhesive tape and production process

Abstract

The wide extrusion type coating machine comprises a bottom plate, a discharging winding roller is installed at one end of the top of the bottom plate, two supporting plates fixedly connected with the bottom plate are arranged on one side of the discharging winding roller, a bottom material groove is fixedly formed in the bottom between the two supporting plates, and a lower pressing roller is rotationally installed in the bottom material groove; an upper pressing roller is rotationally arranged at the top of the lower pressing roller, a top material frame is arranged at the top of the upper pressing roller, the two ends of the top material frame are fixedly connected with supporting plates correspondingly, material limiting plates are slidably arranged on the two sides in the top material frame correspondingly, the material limiting plates are fixedly connected with one ends of connecting strips, and the other ends of the connecting strips are fixedly connected with adjustable guide assemblies. The adjustable guide assemblies are installed on the two sides of the supporting plate respectively. The two ends of the upper pressing roller are rotationally connected with pressing assemblies, the pressing assemblies are slidably connected with the supporting plates correspondingly, one end of the lower pressing roller and one end of the upper pressing roller are rotationally connected with transmission adjusting assemblies correspondingly, and the other end of the lower pressing roller is fixedly connected with an output shaft of a gear motor.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and particularly to a wide-width extrusion coater for semiconductor tapes and a production process. Background Art

[0002] In the processing process of semiconductor wafers (hereinafter also referred to as wafers), after forming a pattern on the surface of the wafer, a so-called back grinding and polishing is performed to grind and polish the back surface of the wafer to a specific thickness. At this time, in order to protect the surface of the wafer, a surface protection tape is attached to the surface of the wafer, and the back surface of the wafer is ground in this state. As the surface protection tape, a surface protection tape provided with an adhesive layer mainly composed of an acrylic polymer on a plastic film such as polyolefin has been proposed. When producing semiconductor tapes, a coater is required to coat a coating with a specific function on a substrate, and after drying, it is cut into pieces or wound up.

[0003] For example, Chinese Patent No. CN117303053A discloses a double-layer wide-width high-speed extrusion coater and a production process. The surface of a baffle is provided with a ventilation groove, a through groove and an adjustment groove, and a connecting rod is provided on the surface of the baffle. A limiting rod is provided on the surface of the connecting rod. A limiting groove and a clamping groove are provided on the surface of the outer ring plate, and a sliding block and a fixing plate are provided on the surface of the outer ring plate. A limiting plate is provided outside the outer ring plate. A cylinder column is provided on the surface of the inner ring plate. A spring is sleeved on the cylinder column, and a wind hole is provided on the surface of the inner ring plate. The beneficial effect is that the outer ring plate is used to wind up the product processed by the double-layer wide-width high-speed extrusion coater. During the winding process, the inner ring plate forms an outward supporting force on the outer ring plate through the elastic support of the spring, so as to improve the compactness of the product when winding on the outer ring plate, prevent the product from loosening when winding after being processed by the coating process, and achieve the improvement of its winding effect.

[0004] Although this coater prevents the product from loosening when winding after being processed by the coating process, the coated substrate is generally light in weight. During the rapid coating and transmission of the coating roller, once misaligned, the coating will not be able to completely coat the film, and the coating is prone to stratification or precipitation after standing for a long time, affecting the coating effect. Therefore, we propose a wide-width extrusion coater for semiconductor tapes and a production process to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a wide-width extrusion coater for semiconductor tapes and a production process to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A wide-width extrusion coater for semiconductor tape, comprising a bottom plate, one end of the top of the bottom plate is provided with a discharging reel, one side of the discharging reel is provided with two support plates fixedly connected to the bottom plate, a bottom material tank is fixedly installed at the bottom between the two support plates, a pressing roller is rotatably installed in the bottom material tank, a top pressing roller is rotatably provided above the pressing roller, a top material rack is provided above the top pressing roller, both ends of the top material rack are respectively fixedly connected to the support plates, limiting plates are respectively slidably provided on both sides inside the top material rack, one end of the limiting plate is fixedly connected to one end of a connecting bar, the other end of the connecting bar is fixedly connected to an adjustable guiding component, and the adjustable guiding components are respectively installed on both sides of the support plates;

[0007] Both ends of the top pressing roller are rotatably connected to a pressing component, the pressing components are respectively slidably connected to the support plates, one ends of the pressing roller and the top pressing roller are respectively rotatably connected to a transmission adjusting component, the other end of the pressing roller is fixedly connected to the output shaft of a reduction motor, and the reduction motor is fixedly installed on the support plate;

[0008] The other end of the top of the bottom plate is fixedly connected to a bracket, the top of the bracket is rotatably connected to a winding reel, one end of the winding reel is fixedly connected to a rotary joint, and a drying box fixedly connected to the bottom plate is provided between the winding reel and the support plate.

[0009] Preferably, a vertical chute is opened at the top of the support plate, the pressing component includes a support slider, a spring, and a telescopic rod, the support slider is slidably installed in the vertical chute, the support slider is rotatably connected to both ends of the top pressing roller, one end of the telescopic rod is fixedly connected to the top end of the support slider, the other end of the telescopic rod is fixedly connected to the top inner wall of the vertical chute, a spring is movably sleeved outside the telescopic rod, one end of the spring is fixedly connected to the top inner wall of the vertical chute, and the other end is fixedly connected to the support slider.

[0010] Preferably, the transmission adjusting component includes a driving gear, a long connecting rod, a first transmission gear, a short connecting rod, a driven gear, a second transmission gear, and a hinge shaft, the driving gear is fixedly connected to one end of the pressing roller, one side of the driving gear is meshed with the first transmission gear, the first transmission gear is rotatably connected to one side of the middle of the long connecting rod, one end of the long connecting rod is rotatably connected to one end of the pressing roller, the other end of the long connecting rod is hinged to the hinge shaft, one side of the hinge shaft is fixedly connected to the second transmission gear, one side of the second transmission gear is meshed with the first transmission gear, the other side of the first transmission gear is meshed with the driven gear, the driven gear is fixedly connected to one end of the top pressing roller, the other end of the hinge shaft is hinged to one end of the short connecting rod, and the other end of the short connecting rod is hinged to one end of the top pressing roller.

[0011] Preferably, the number of teeth of the driving gear and the second transmission gear is consistent, the number of teeth of the first transmission gear and the driven gear is consistent, and the length of the long connecting rod is twice the length of the short connecting rod.

[0012] Preferably, a stirring shaft is rotatably installed at the bottom of the bottom trough, the shaft body of the stirring shaft is fixedly connected to a plurality of stirring rods, the stirring rods are evenly distributed around the circumference, and one end of the stirring shaft is connected to one end of the lower pressure roller through a chain transmission mechanism.

[0013] Preferably, the connecting strip is an L-shaped structure and is symmetrically arranged on both sides of the top material rack, the top center of the top material rack is fixedly connected to a connecting pipe, the connecting pipe is fixedly connected to the pump body and the conveying pipe, and the conveying pipe is fixedly connected to the bottom material trough.

[0014] Preferably, a material discharge cavity is hollowed out in the top material rack, the bottom end of the top material rack is fixedly connected to a material discharge hopper, the material discharge hopper is communicated with the material discharge cavity, and the material limiting plates are slidably disposed in the material discharge cavity and the material discharge hopper, respectively.

[0015] Preferably, the adjustable guide assembly includes a mounting plate, a two-way screw, a guide slide bar, an adjustment plate, a guide roller, and an adjusting handwheel. The mounting plates are respectively fixedly connected to both sides of the support plate, and a two-way screw is rotatably installed on the top between the two mounting plates on the same side, and a guide slide bar is fixedly provided on the bottom of the two-way screw. The two sides of the two-way screw are respectively connected to the adjusting plates through a threaded structure, and the adjusting plate is slidably connected to the guide slide bar. Guide rollers are rotatably installed on the top and bottom sides of opposite ends of the adjusting plate, and the top ends of the adjusting plates are respectively fixedly connected to the connecting strips, and one end of the two-way screw is fixedly connected to the adjusting handwheel.

[0016] Preferably, an air passage is arranged in the hollow interior of the winding roller and the air passage is connected with the rotary joint, one end of the winding roller is coaxially fixedly connected with a disc, one end surface of the disc is provided with a plurality of air holes, and the air holes are connected with the air passage.

[0017] A production process of a wide width extrusion coater for semiconductor tape is also provided, comprising the following steps:

[0018] S1. The semiconductor tape substrate roll is installed at the discharge roll position, the coating material is injected into the bottom trough, and the rotary joint is connected to the air pump;

[0019] S2. According to the width of the substrate, the adjustable guide assembly is operated to adapt to the width of the substrate and guide the substrate. At the same time, the adjustable guide assembly drives the limiting plate to move synchronously. The limiting plate adjusts the unloading width of the coating material to be more suitable for the width of the substrate.

[0020] S3, the top material rack discharges the coating material and covers the outer surface of the upper pressure roller, and the lower pressure roller carries the coating material in the bottom material trough;

[0021] S4. The reduction motor is powered on and operates. The reduction motor drives the lower pressing roller, and the lower pressing roller drives the upper pressing roller to rotate in cooperation with the transmission adjustment assembly. The upper pressing roller and the lower pressing roller cooperate to perform an extrusion coating operation on the substrate.

[0022] S5. After the coating is completed, the drying oven performs a drying operation. After drying, it is wound by the receiving winding roller. When winding, the air pump operates, and the air pump blows out gas through the air holes to cool and further air-dry the wound tape.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the adjustable guiding assembly, it can be targeted at different substrate widths. The adjustable guiding assembly guides and limits the substrate, thereby preventing misalignment during substrate transmission. At the same time, the adjustable guiding assembly moves synchronously with the material limiting plate, and the material limiting plate adjusts the width of the coating material on the upper pressing roller, making it more adaptable to the width of the substrate; the upper pressing roller is movably arranged, which is convenient for coating operations on substrates of different thicknesses. While the transmission adjustment assembly ensures the smooth movement of the upper pressing roller, it also ensures the smooth transmission of the upper pressing roller and the lower pressing roller. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the present invention;

[0025] Figure 2 It is a schematic structural diagram of another perspective of the present invention;

[0026] Figure 3 It is a schematic structural diagram of another perspective of the present invention;

[0027] Figure 4 It is a schematic cross-sectional structural diagram of the present invention.

[0028] In the figure: bottom plate 1, discharging winding roller 2, support plate 3, vertical sliding groove 31, top material rack 4, connecting pipe 41, feeding hopper 42, feeding cavity 43, material limiting plate 44, upper pressing roller 5, lower pressing roller 6, transmission adjustment assembly 7, driving gear 71, long connecting rod 72, first transmission gear 73, short connecting rod 74, driven gear 75, second transmission gear 76, hinge shaft 77, adjustable guiding assembly 8, mounting plate 81, bidirectional screw 82, guiding slide rod 83, adjusting plate 84, guiding roller 85, adjusting handwheel 86, receiving winding roller 9, disc 91, air hole 92, drying oven 10, support 11, stirring shaft 12, stirring rod 121, pressing assembly 13, support slider 131, spring 132, telescopic rod 133, bottom material trough 14, connecting strip 15, rotary joint 16, reduction motor 17. Detailed Embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] Refer to Figure 1 、 2 This is the first embodiment of the present invention. This embodiment provides a wide-width extrusion coater for semiconductor tape, including a bottom plate 1. One end of the top of the bottom plate 1 is provided with a discharging reel 2. One side of the discharging reel 2 is provided with two support plates 3 fixedly connected to the bottom plate 1. A bottom material tank 14 is fixedly installed at the bottom between the two support plates 3. A pressing roller 6 is rotatably installed in the bottom material tank 14. A top pressing roller 5 is rotatably provided above the pressing roller 6. A top material rack 4 is provided above the top pressing roller 5. Both ends of the top material rack 4 are respectively fixedly connected to the support plates 3. Limited material plates 44 are respectively slidably provided on both sides inside the top material rack 4. One end of the limited material plate 44 is fixedly connected to one end of a connecting bar 15. The other end of the connecting bar 15 is fixedly connected to an adjustable guiding assembly 8. The adjustable guiding assemblies 8 are respectively installed on both sides of the support plates 3;

[0032] Both ends of the top pressing roller 5 are rotatably connected to a pressing assembly 13. The pressing assemblies 13 are respectively slidably connected to the support plates 3. One ends of the pressing roller 6 and the top pressing roller 5 are respectively rotatably connected to a transmission adjusting assembly 7. The other end of the pressing roller 6 is fixedly connected to the output shaft of a reduction motor 17. The reduction motor 17 is fixedly installed on the support plate 3;

[0033] The other end of the top of the bottom plate 1 is fixedly connected to a bracket 11. The top of the bracket 11 is rotatably connected to a winding reel 9. One end of the winding reel 9 is fixedly connected to a rotary joint 16. A drying box 10 fixedly connected to the bottom plate 1 is provided between the winding reel 9 and the support plate 3.

[0034] It also provides a production process of a wide-width extrusion coater for semiconductor tape, including the following steps:

[0035] S1. The semiconductor tape base material roll is installed at the position of the discharging reel 2. The coating material is injected into the bottom material tank 14. The rotary joint 16 is connected to an air pump;

[0036] S2. According to the width of the base material, operate the adjustable guiding assembly 8 to adapt to the width of the base material and guide the base material. At the same time, the adjustable guiding assembly 8 drives the limited material plate 44 to move synchronously. The limited material plate 44 adjusts the feeding width of the coating material, so as to be more suitable for the width of the base material;

[0037] S3. The top material rack 4 discharges the coating material, which is coated on the outer surface of the upper pressing roller 5, and the lower pressing roller 6 carries the coating material in the bottom material tank 14.

[0038] S4. The reduction motor 17 is powered on to work. The reduction motor 17 drives the lower pressing roller 6, and the lower pressing roller 6 cooperates with the transmission adjustment assembly 7 to drive the upper pressing roller 5 to rotate. The upper pressing roller 5 and the lower pressing roller 6 cooperate to perform an extrusion coating operation on the substrate.

[0039] S5. After the coating is completed, the drying oven 10 performs a drying operation. After drying, it is wound by the winding roller 9. When winding, the air pump works, and the air pump blows out gas through the air holes 92 to cool and further air-dry the wound tape.

[0040] Embodiment 2

[0041] Refer to Figures 1-4 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. Specifically, a vertical chute 31 is opened at the top of the support plate 3. The pressing component 13 includes a support slider 131, a spring 132, and a telescopic rod 133. The support slider 131 is slidably installed in the vertical chute 31. The support slider 131 is rotatably connected to both ends of the upper pressing roller 5. The top end of the support slider 131 is fixedly connected to one end of the telescopic rod 133. The other end of the telescopic rod 133 is fixedly connected to the top inner wall of the vertical chute 31. A spring 132 is movably sleeved outside the telescopic rod 133. One end of the spring 132 is fixedly connected to the top inner wall of the vertical chute 31, and the other end is fixedly connected to the support slider 131.

[0042] Under the elastic force of the spring 132 of the pressing component 13, the upper pressing roller 5 is driven to always closely adhere to the substrate. The setting of the telescopic rod 133 limits the spring 132 to prevent the spring 132 from shifting and deforming, ensuring the elastic effect of the spring 132.

[0043] Specifically, the transmission adjustment assembly 7 includes a driving gear 71, a long connecting rod 72, a first transmission gear 73, a short connecting rod 74, a driven gear 75, a second transmission gear 76, and a hinge shaft 77. The driving gear 71 is fixedly connected to one end of the lower pressing roller 6. One side of the driving gear 71 is meshed with the first transmission gear 73. The first transmission gear 73 is rotatably connected to the middle side of the long connecting rod 72. One end of the long connecting rod 72 is rotatably connected to one end of the lower pressing roller 6. The other end of the long connecting rod 72 is hinged to the hinge shaft 77. One side of the hinge shaft 77 is fixedly connected to the second transmission gear 76. One side of the second transmission gear 76 is meshed with the first transmission gear 73. The other side of the first transmission gear 73 is meshed with the driven gear 75. The driven gear 75 is fixedly connected to one end of the upper pressing roller 5. The other end of the hinge shaft 77 is hinged to one end of the short connecting rod 74. The other end of the short connecting rod 74 is hinged to one end of the upper pressing roller 5.

[0044] When the upper pressure roller 5 changes the spacing with the lower pressure roller 6, the long connecting rod 72 and the short connecting rod 74 are hinged and cooperate with the transmission gear 1 73 and the transmission gear 2 76 to respectively drive the driving gear 71 and the driven gear 75 to rotate asynchronously at the same speed, thereby making the upper pressure roller 5 and the lower pressure roller 6 rotate asynchronously at the same speed to achieve uniform coating of the substrate.

[0045] Furthermore, the number of teeth of the driving gear 71 and the transmission gear 2 76 is consistent, the number of teeth of the transmission gear 1 73 and the driven gear 75 is consistent, and the length of the long connecting rod 72 is twice the length of the short connecting rod 74. This number of teeth is set to ensure that the upper pressure roller 5 and the lower pressure roller 6 rotate at the same speed.

[0046] Specifically, a stirring shaft 12 is rotatably installed at the bottom of the bottom trough 14, and the shaft body of the stirring shaft 12 is fixedly connected to a plurality of stirring rods 121, which are evenly distributed around the circumference. One end of the stirring shaft 12 is connected to one end of the lower pressure roller 6 through a chain transmission mechanism.

[0047] The stirring shaft 12 rotatably installed in the bottom material trough 14 stirs the internal coating to prevent the coating material from being delaminated or precipitated. The stirring rods 121 are evenly distributed around the circumference to completely stir the inside of the bottom material trough 14 .

[0048] Specifically, the connecting strip 15 is an L-shaped structure and is symmetrically arranged on both sides of the top material rack 4 . The top center of the top material rack 4 is fixedly connected to the connecting pipe 41 . The connecting pipe 41 is fixedly connected to the pump body and the delivery pipe, and the delivery pipe is fixedly connected to the bottom material trough 14 .

[0049] Specifically, a material discharge cavity 43 is hollowly provided in the top material rack 4, the bottom end of the top material rack 4 is fixedly connected to a material discharge hopper 42, the material discharge hopper 42 is connected to the material discharge cavity 43, and a material limiting plate 44 is slidably provided in the material discharge cavity 43 and the material discharge hopper 42, respectively.

[0050] Specifically, the adjustable guide assembly 8 includes a mounting plate 81, a bidirectional screw 82, a guide slide 83, an adjustment plate 84, a guide roller 85, and an adjustment handwheel 86. The mounting plates 81 are fixedly connected to both sides of the support plate 3, and the bidirectional screw 82 is rotatably installed at the top between the two mounting plates 81 on the same side. The bottom of the bidirectional screw 82 is fixedly provided with a guide slide 83. The two sides of the bidirectional screw 82 are respectively connected to the adjustment plates 84 through a threaded structure. The adjustment plate 84 is slidably connected to the guide slide 83. Guide rollers 85 are rotatably installed on the top and bottom sides of the opposite ends of the adjustment plate 84, and the tops of the adjustment plates 84 are respectively fixedly connected to the connecting strips 15, and one end of the bidirectional screw 82 is fixedly connected to the adjusting handwheel 86.

[0051] According to the width of the base material, operate the adjustable guiding assembly 8, rotate the adjusting handwheel 86, the adjusting handwheel 86 drives the fixedly connected bidirectional screw 82 to rotate, the bidirectional screw 82 drives the adjusting plates 84 on both sides to approach or move away from each other, so as to adapt to the width of the base material. The two guiding rollers 85 guide the base material. At the same time, the adjusting plate 84 drives the material limiting plate 44 to move synchronously through the fixedly connected connecting bar 15, and the material limiting plate 44 adjusts the width of the coating material discharged, so as to be more suitable for the width of the base material.

[0052] Specifically, the inside of the winding roll 9 is hollow and provided with an air passage, and the air passage is communicated with the rotary joint 16. One end of the winding roll 9 is coaxially and fixedly connected with a disc 91. A plurality of air holes 92 are formed on one end surface of the disc 91, and the air holes 92 are communicated with the air passage. When winding, the air pump works, and the air pump blows out gas through the air holes 92 to cool and further air-dry the wound tape.

[0053] Embodiment 3

[0054] Refer to Figures 1-4, which is the third embodiment of the present invention. Based on the above two embodiments, during use, the semiconductor tape substrate roll is installed at the position of the discharging roll 2, the coating material is injected into the bottom trough 14, the rotary joint 16 is connected to an air pump. According to the width of the substrate, the adjustable guiding assembly 8 is operated, the adjusting handwheel 86 is rotated, the adjusting handwheel 86 drives the fixedly connected bidirectional screw 82 to rotate, the bidirectional screw 82 drives the adjusting plates 84 on both sides to approach or move away from each other, so as to adapt to the width of the substrate. The two guiding rollers 85 guide the substrate. At the same time, the adjusting plate 84 drives the material limiting plate 44 to move synchronously through the fixedly connected connecting bar 15, and the material limiting plate 44 adjusts the discharging width of the coating material, so as to be more suitable for the width of the substrate. The top material rack 4 discharges the coating material, which covers the outer surface of the upper pressing roller 5. The lower pressing roller 6 entrains the coating material in the bottom trough 14. The reduction motor 17 is powered on to work, the reduction motor 17 drives the lower pressing roller 6, and the lower pressing roller 6 cooperates with the transmission adjusting assembly 7 to drive the upper pressing roller 5 to rotate. The upper pressing roller 5 and the lower pressing roller 6 perform extrusion coating operation on the substrate. When the substrate is relatively thick, under the elastic force of the spring 132 of the pressing assembly 13, the upper pressing roller 5 is driven to always closely adhere to the substrate. At the same time, when the distance between the upper pressing roller 5 and the lower pressing roller 6 is changed, the long connecting rod 72 and the short connecting rod 74 are hinged and matched, and at the same time, in cooperation with the transmission gear one 73 and the transmission gear two 76, they respectively drive the driving gear 71 and the driven gear 75 to rotate asynchronously at the same speed, so that the upper pressing roller 5 and the lower pressing roller 6 rotate asynchronously at the same speed, realizing uniform coating of the substrate. The excess coating material on the lower pressing roller 6 falls back into the bottom trough 14 for collection again. At the same time, the stirring shaft 12 rotatably installed in the bottom trough 14 stirs the internal coating material to prevent the coating material from stratifying or precipitating. After coating, the drying box 10 performs drying operation. After drying, it is wound by the winding roll 9. During winding, the air pump works, and the air pump blows out gas through the air holes 92 to cool and further air-dry the wound tape.

[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wide width extrusion coating machine for semiconductor adhesive tape, comprising a bottom plate (1), characterized in that: A discharge roller (2) is installed at one end of the top of the bottom plate (1), and two support plates (3) fixed to the bottom plate (1) are provided on one side of the discharge roller (2); a bottom material trough (14) is fixedly installed at the bottom between the two support plates (3), a lower pressure roller (6) is rotatably installed in the bottom material trough (14), an upper pressure roller (5) is rotatably installed on the top of the lower pressure roller (6), and a top material rack (4) is provided on the top of the upper pressure roller (5); the two ends of the top material rack (4) are respectively fixedly connected to the support plate (3), and the two sides of the top material rack (4) are respectively slidably provided with a limiting plate (44), the limiting plate (44) is fixedly connected to one end of the connecting strip (15), and the other end of the connecting strip (15) is fixedly connected to an adjustable guide component (8), and the adjustable guide component (8) is respectively installed on both sides of the support plate (3); The two ends of the upper pressing roller (5) are rotatably connected to the clamping assembly (13), and the clamping assembly (13) is respectively slidably connected to the support plate (3); one end of the lower pressing roller (6) and the upper pressing roller (5) is respectively rotatably connected to the transmission adjustment assembly (7), and the other end of the lower pressing roller (6) is fixedly connected to the output shaft of the reduction motor (17), and the reduction motor (17) is fixedly installed on the support plate (3); The other end of the top of the bottom plate (1) is fixedly connected to a bracket (11), the top of the bracket (11) is rotatably connected to a material receiving roller (9), one end of the material receiving roller (9) is fixedly connected to a rotary joint (16), and a drying box (10) fixedly connected to the bottom plate (1) is provided between the material receiving roller (9) and the support plate (3).

2. A wide width extrusion coater for semiconductor tape according to claim 1, characterized in that: A vertical slide groove (31) is provided at the top of the support plate (3); the clamping assembly (13) comprises a support slider (131), a spring (132), and a telescopic rod (133); the support slider (131) is slidably installed in the vertical slide groove (31); the support slider (131) is rotatably connected to the two ends of the upper pressure roller (5); the top end of the support slider (131) is fixedly connected to one end of the telescopic rod (133); the other end of the telescopic rod (133) is fixedly connected to the top inner wall of the vertical slide groove (31); a spring (132) is movably sleeved outside the telescopic rod (133); one end of the spring (132) is fixedly connected to the top inner wall of the vertical slide groove (31); and the other end is fixedly connected to the support slider (131).

3. A wide width extrusion coater for semiconductor tape according to claim 1, characterized in that: The transmission adjustment assembly (7) comprises a driving gear (71), a long connecting rod (72), a transmission gear 1 (73), a short connecting rod (74), a driven gear (75), a transmission gear 2 (76), and a hinge shaft (77); the driving gear (71) is fixedly connected to one end of the lower pressure roller (6); one side of the driving gear (71) is meshedly connected to the transmission gear 1 (73); the transmission gear 1 (73) is rotationally connected to one side of the middle part of the long connecting rod (72); one end of the long connecting rod (72) is rotationally connected to one end of the lower pressure roller (6); The other end of the long connecting rod (72) is hinged to the hinge shaft (77), one side of the hinge shaft (77) is fixedly connected to the transmission gear 2 (76), one side of the transmission gear 2 (76) is meshedly connected to the transmission gear 1 (73), the other side of the transmission gear 1 (73) is meshedly connected to the driven gear (75), the driven gear (75) is fixedly connected to one end of the upper pressure roller (5), the other end of the hinge shaft (77) is hinged to one end of the short connecting rod (74), and the other end of the short connecting rod (74) is hinged to one end of the upper pressure roller (5).

4. A wide width extrusion coater for semiconductor tape according to claim 3, characterized in that: The number of teeth of the driving gear (71) and the second transmission gear (76) is the same, the number of teeth of the first transmission gear (73) and the driven gear (75) is the same, and the length of the long connecting rod (72) is twice the length of the short connecting rod (74).

5. The wide width extrusion coater for semiconductor tape according to claim 1, characterized in that: A stirring shaft (12) is rotatably mounted at the bottom of the bottom trough (14); the shaft body of the stirring shaft (12) is fixedly connected to a plurality of stirring rods (121); the stirring rods (121) are evenly distributed around the circumference; one end of the stirring shaft (12) is connected to one end of a lower pressure roller (6) via a chain transmission mechanism.

6. A wide width extrusion coater for semiconductor tape according to claim 1, characterized in that: The connecting strip (15) is an L-shaped structure and is symmetrically arranged on both sides of the top material rack (4). The top center of the top material rack (4) is fixedly connected to a connecting pipe (41). The connecting pipe (41) is fixedly connected to the pump body and the conveying pipe, and the conveying pipe is fixedly connected to the bottom material trough (14).

7. A wide width extrusion coater for semiconductor tape according to claim 1, characterized in that: A material lowering cavity (43) is provided in the hollow of the top material rack (4), the bottom end of the top material rack (4) is fixedly connected to a material lowering hopper (42), the material lowering hopper (42) is communicated with the material lowering cavity (43), and the material limiting plate (44) is slidably disposed in the material lowering cavity (43) and the material lowering hopper (42), respectively.

8. The wide width extrusion coater for semiconductor tape according to claim 1, characterized in that: The adjustable guide assembly (8) comprises a mounting plate (81), a bidirectional screw (82), a guide slide bar (83), an adjustment plate (84), a guide roller (85), and an adjustment hand wheel (86). The mounting plates (81) are respectively fixedly connected to the two sides of the support plate (3). The bidirectional screw (82) is rotatably mounted on the top between the two mounting plates (81) on the same side. The bottom of the bidirectional screw (82) is fixedly provided with a guide slide bar (83). The two sides of the bidirectional screw (82) are respectively connected to the adjustment plates (84) through a threaded structure. The adjustment plate (84) is slidably connected to the guide slide bar (83). The top and bottom sides of the opposite ends of the adjustment plate (84) are respectively rotatably installed with guide rollers (85). The top of the adjustment plate (84) is respectively fixedly connected to the connecting strip (15), and one end of the bidirectional screw (82) is fixedly connected to the adjustment hand wheel (86).

9. A wide width extrusion coater for semiconductor tape according to claim 1, characterized in that: The winding roller (9) is hollow inside and has an air passage in communication with the rotary joint (16). One end of the winding roller (9) is coaxially fixedly connected to a disc (91). One end surface of the disc (91) is provided with a plurality of air holes (92), and the air holes (92) are in communication with the air passage.

10. The production process of a wide-width extrusion coater for semiconductor tape according to any one of claims 1 to 9, characterized in that: The steps include: S1, the semiconductor tape substrate roll is installed at the discharge roll (2), the coating material is injected into the bottom trough (14), and the rotary joint (16) is connected to the air pump; S2. According to the width of the substrate, the adjustable guide assembly (8) is operated to adapt to the width of the substrate and guide the substrate. At the same time, the adjustable guide assembly (8) drives the limiting plate (44) to move synchronously. The limiting plate (44) adjusts the feeding width of the coating material to be more suitable for the width of the substrate. S3, the top material rack (4) discharges the coating material and covers the outer surface of the upper pressing roller (5), and the lower pressing roller (6) carries the coating material in the bottom material trough (14); S4, the reduction motor (17) is powered on to start working, the reduction motor (17) drives the lower pressure roller (6), the lower pressure roller (6) cooperates with the transmission adjustment component (7) to drive the upper pressure roller (5) to rotate, and the upper pressure roller (5) cooperates with the lower pressure roller (6) to perform an extrusion coating operation on the substrate; S5. After coating is completed, the drying box (10) performs a drying operation. After drying, the tape is rolled up by the reeling roller (9). During the rolling up, the air pump works and blows out gas through the air holes (92) to cool the rolled tape and further air dry it.

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