Device for coating pattern on surface of PEG (Polyethylene Glycol) film coiled material

Abstract

The invention relates to the field of coiled material coating, in particular to a device for coating patterns on the surface of a PEG (polyethylene glycol) film coiled material, which comprises a bearing plate, a coating operation frame is mounted above the bearing plate, and delivery pumps are symmetrically mounted on the bearing plate. The two groups of coating roller shafts are arranged up and down and perform opposite reciprocating motion, so that the coating roller shafts can perform two-side operation at the same time, in the operation process, the coating roller shafts can be moved into the corresponding coating filling frames, pigment is smeared on the coating roller shafts in a running manner through extrusion of movement, redundant pigment can be scraped through rotation, and the coating efficiency is improved. By means of the structure, pattern coating work can be conducted on the two faces of a PEG film at the same time, automatic operation is conducted in the whole coating process, the labor intensity is greatly reduced, automatic feeding and scraping can be conducted in the coating process, the completeness of coated patterns is guaranteed, and the production efficiency is improved. Therefore, the efficiency and the quality of pattern coating operation are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of roll coating, and more specifically to an apparatus for coating patterns onto the surface of PEG film rolls. Background Technology

[0002] PEG membranes are thin film materials made with polyethylene glycol as the core component. With their excellent hydrophilicity, biocompatibility, chemical stability and film-forming properties, they have shown broad application potential in fields such as drug delivery, biomedicine, membrane separation, cosmetics and industrial coatings.

[0003] The patent application with publication number CN219898777U describes an existing coil coating equipment, which relates to the field of coil surface processing technology. It includes a coil processing table and a coil body. Both sides of the top surface of the processing table are equipped with winding components. A first conveyor and a second conveyor are sequentially arranged between adjacent winding components. A coating component is located on the top of the first conveyor, and a drying component is located on the top of the second conveyor. A portal frame is located on one side of the top surface of the processing table. The coating components are mounted on the surface of the portal frame. Both ends of the coil body are wound and connected to the surfaces of the winding components. The winding components on both sides wind and release the coil body, allowing it to pass sequentially through the surface coating components and the air device for surface paint spraying and subsequent surface drying. This allows the device to simultaneously coat the surface of the coil body and wind it, facilitating rapid winding of the coil body surface paint spraying process. The device has a simple structure, high integration and automation, and improves the processing efficiency of the coil body surface.

[0004] Existing PEG film roll pattern coating equipment requires careful control of the amount of coating material during use, as it is necessary to coat patterns. Otherwise, the pattern will be unclear after coating. Furthermore, existing equipment can generally only coat one side, which greatly reduces coating efficiency and labor intensity.

[0005] Therefore, it is necessary to invent a device for coating patterns on the surface of PEG film rolls to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an apparatus for coating patterns on the surface of PEG film rolls. By reciprocating the coating rollers in opposite directions, patterns can be coated on both sides simultaneously. Furthermore, by rotating the coating rollers, excess coating is scraped off, thereby ensuring the integrity of the pattern. This solves the problems of incomplete or unclear patterns and low coating efficiency in existing coating equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an apparatus for coating a pattern on the surface of a PEG film roll, comprising a support plate, a coating operation frame installed above the support plate, conveying pumps symmetrically installed on the support plate, and two sets of conveying pumps located on both sides of the coating operation frame, a feeding groove symmetrically opened on the inner wall of the coating operation frame, and coating rollers symmetrically arranged vertically inside the coating operation frame.

[0008] The coating component set in the coating operation frame includes a sliding cavity. The sliding cavities are symmetrically opened on the inner wall of the coating operation frame, and two sets of sliding cavities are arranged downward in sequence. Each set of sliding cavities is slidably connected to a sliding plate, and a connecting frame is installed on one side of each set of sliding plates.

[0009] The power assembly located outside the coating work frame includes a screw, which is rotatably connected to the outside of the coating work frame and has two sets arranged downwards in sequence. A servo motor is installed on the outside of the coating work frame, and the output end of the servo motor is shaft-connected to one set of screws. Bevel gears are symmetrically installed on both sets of screws.

[0010] The drive assembly set inside the coating work frame includes racks, which are symmetrically arranged on one side of the coating work frame and mesh with corresponding spur gears. Connecting shafts are symmetrically installed on both sets of racks, and each set of connecting shafts is connected through to the inner wall of the coating work frame. A fixed frame is installed on one side of the coating work frame, and an electric telescopic rod is installed inside the fixed frame. The output end of the electric telescopic rod is fixedly connected to a set of connecting shafts.

[0011] The material feeding assembly installed in the coating operation frame includes a paint filling frame, which is symmetrically installed on the inner wall of the coating operation frame. Each of the two sets of paint filling frames has a second feeding trough, and the second feeding trough is connected to the corresponding first feeding trough.

[0012] As a preferred embodiment of the present invention, the coating assembly further includes a slide rod, which is installed in each set of connecting frames. Each set of connecting frames is slidably connected to a sliding seat, and the sliding seat is connected through the corresponding slide rod. The two sets of sliding seats are rotatably connected to the corresponding coating roller shaft. A spring is sleeved on the slide rod, and the two sides of the spring are respectively attached to the sliding seat and the inner wall of the connecting frame.

[0013] As a preferred embodiment of the present invention, the power assembly further includes a double-headed bevel gear rod, which is rotatably connected to the outside of the coating work frame, and the two ends of the double-headed bevel gear rod are respectively engaged with bevel gears on the side away from the servo motor on two sets of screws, and internal thread blocks are screwed onto both sets of screws.

[0014] As a preferred embodiment of the present invention, a connecting frame 2 is installed on one side of each of the two sets of internal threaded blocks, a sliding rod 2 is installed inside the connecting frame 2, a slider is sleeved on the sliding rod 2, and spring 2 is symmetrically sleeved on the sliding rod 2, with the two sets of spring 2 located on both sides of the slider. The two sets of sliders are slidably connected to the corresponding sliding cavity, and the two sets of sliders are fixedly connected to the corresponding sliding plate.

[0015] As a preferred embodiment of the present invention, two sets of guide rods are sequentially installed downward on the outer side of the coating operation frame away from the screw. Guide blocks are slidably connected to both sets of guide rods, and the connection method between the guide blocks and the corresponding slide plates is the same as the connection method between the slider and the slide plates.

[0016] As a preferred embodiment of the present invention, the driving assembly further includes a swing rod, which is rotatably connected to the side of the coating work frame near the fixed frame. The swing rod is symmetrically provided with sliding grooves, and fixed rods are installed on the upper and lower sets of the connecting shafts near the electric telescopic rod, and the fixed rods are slidably connected to the corresponding sliding grooves.

[0017] As a preferred embodiment of the present invention, the feeding assembly further includes a paint filling chamber, which is opened inside the paint filling frame. The two sets of paint filling chambers are connected by a pipeline and are connected to the delivery pump pipeline. Each of the two sets of paint filling frames is provided with a collection trough, which is connected by a pipeline and is connected to the delivery pump pipeline. A scraping groove is provided between the collection trough and the inner wall of the paint filling frame.

[0018] As a preferred embodiment of the present invention, a plurality of through holes are provided between the inner wall of the paint filling frame and the paint filling cavity. Each through hole is fitted with a sealing block, and the sealing block is located inside the paint filling frame. A spring is fitted between each through hole and the sealing block. A plurality of connecting holes are provided in a ring on the inner wall of the through hole, and one end of each connecting hole is covered by a sealing block.

[0019] As a preferred embodiment of the present invention, two sets of coating application frames are symmetrically rotatably connected to the side of the rack on both sides. Each set of single-headed bevel gears is installed on one side of each set of single-headed bevel gears, and each set of single-headed bevel gears passes through the coating operation frame and meshes with the corresponding bevel gear.

[0020] Compared with the prior art, the technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0021] Two sets of coating rollers are arranged vertically and reciprocate in opposite directions, allowing for simultaneous coating of both sides. During operation, the rollers can be moved to the corresponding paint dispensing frame, where the pigment is applied onto the rollers through compression. Excess pigment is scraped off by rotation. This structure enables simultaneous pattern coating of both sides of the PEG film. The entire coating process is automated, significantly reducing labor intensity. Automatic feeding and scraping ensure the integrity of the coated pattern, greatly improving the efficiency and quality of the pattern coating operation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the guide rod layout structure of the present invention;

[0025] Figure 3 This is a schematic diagram of a partial planing structure of the coating operation frame of the present invention;

[0026] Figure 4 This is a schematic diagram of the overall planing structure of the coating operation frame of the present invention;

[0027] Figure 5 This is a schematic diagram of the cut structure of the connecting frame of the present invention;

[0028] Figure 6 This is a schematic diagram of the cut structure of the paint dispensing frame of the present invention;

[0029] Figure 7 This is a schematic diagram of the overall structure of the paint dispensing frame of the present invention;

[0030] Figure 8 This is a schematic diagram of the connection structure between the rack and the swing rod of the present invention;

[0031] Figure 9 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0032] Figure 10 For the present invention Figure 6 Enlarged structural diagram at point B.

[0033] Explanation of reference numerals in the attached figures:

[0034] 001. Bearing plate; 101. Conveying pump; 102. Coating frame; 103. Feed chute one; 104. Coating roller; 002. Coating assembly; 201. Slide cavity; 202. Slide plate; 203. Connecting frame one; 204. Slide rod one; 205. Sliding seat; 206. Spring one; 207. Circular gear one; 003. Power assembly; 301. Screw; 302. Servo motor; 303. Bevel gear; 304. Double-headed bevel gear; 305. Internal thread block; 306. Connecting frame two; 307. Slide rod two; 308. Slider; 309. 1. Spring 2; 310. Guide block; 311. Guide rod; 004. Drive assembly; 401. Rack; 402. Connecting shaft; 403. Electric telescopic rod; 404. Swing rod; 405. Slide groove; 406. Fixed rod; 407. Fixed frame; 005. Feeding assembly; 501. Paint filling frame; 502. Feed chute 2; 503. Paint filling cavity; 504. Collection chute; 505. Scraper groove; 506. Through hole; 507. Sealing block; 508. Spring 3; 509. Connecting hole; 510. Circular gear 2; 511. Single-headed bevel gear. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] This invention provides, for example Figure 1-10 The apparatus shown is for coating patterns on the surface of PEG film rolls. It includes a support plate 001, a coating operation frame 102 mounted above the support plate 001, a conveying pump 101 symmetrically mounted on the support plate 001, and two sets of conveying pumps 101 located on both sides of the coating operation frame 102. A feed groove 103 is symmetrically opened on the inner wall of the coating operation frame 102, and coating rollers 104 are symmetrically arranged vertically inside the coating operation frame 102.

[0037] The coating material can be conveyed by the delivery pump 101, and the feed trough 103 can convey the PEG film into the coating operation frame 102. The coating roller 104 has a pattern engraved on its surface. The coating material can be applied to the coating roller 104, so that the pattern on the surface of the coating roller 104 can be coated onto the PEG film during the rolling process.

[0038] The coating component 002 set in the coating operation frame 102 includes a sliding cavity 201. The sliding cavities 201 are symmetrically opened on the inner wall of the coating operation frame 102, and two sets of sliding cavities 201 are arranged downward in sequence. Each set of sliding cavities 201 has a sliding plate 202 slidably connected in it, and a connecting frame 203 is installed on one side of each set of sliding plates 202.

[0039] The slide plate 202 can slide within the coating work frame 102 via the slide cavity 201.

[0040] The power assembly 003 located outside the coating work frame 102 includes a screw 301. The screw 301 is rotatably connected to the outside of the coating work frame 102, and two sets are arranged downwards in sequence. A servo motor 302 is installed on the outside of the coating work frame 102, and the output end of the servo motor 302 is axially connected to one set of screws 301. Both sets of screws 301 are symmetrically equipped with bevel gears 303.

[0041] The servo motor 302 can drive the screw 301 to rotate.

[0042] The drive assembly 004 installed in the coating operation frame 102 includes a rack 401. The racks 401 are symmetrically arranged on one side inside the coating operation frame 102, and the racks 401 mesh with the corresponding spur gears 207. Connecting shafts 402 are symmetrically installed on both sets of racks 401, and each set of connecting shafts 402 is connected to the inner wall of the coating operation frame 102 through. A fixed frame 407 is installed on one side of the coating operation frame 102. An electric telescopic rod 403 is installed in the fixed frame 407, and the output end of the electric telescopic rod 403 is fixedly connected to a set of connecting shafts 402.

[0043] The rack 401 and the spur gear 207 work together to make the spur gear 207 roll during movement, thereby driving the coating roller shaft 104 to roll and perform coating work. The connecting shaft 402 allows the rack 401 to move within the coating work frame 102 under the push of the electric telescopic rod 403, so that the rack 401 and the spur gear 207 can be in a disengaged or engaged state.

[0044] The feeding component 005 installed in the coating operation frame 102 includes a paint filling frame 501. The paint filling frames 501 are symmetrically installed on the inner wall of the coating operation frame 102. Each of the two sets of paint filling frames 501 has a second feeding groove 502, and the second feeding groove 502 is connected to the corresponding first feeding groove 103.

[0045] The PEG film can be transported through the coating filling frame 501 to the coating operation frame 102 by the cooperation of the second feeding trough 502 and the first feeding trough 103.

[0046] As a preferred embodiment of the present invention, the coating assembly 002 further includes a slide bar 204, which is installed in each set of connecting frames 203. Each set of connecting frames 203 is slidably connected to a sliding seat 205, and the sliding seat 205 is connected through the corresponding slide bar 204. The two sets of sliding seats 205 are rotatably connected to the corresponding coating roller shaft 104. A spring 206 is sleeved on the slide bar 204, and the two sides of the spring 206 are respectively attached to the sliding seat 205 and the inner wall of the connecting frame 203.

[0047] The spring 206 can keep the sliding seat 205 in the position of the connecting frame 203, so that the position of the coating roller 104 is squeezed, and the squeezing direction of the two sets of coating rollers 104 is set opposite to each other, so that the two sets of coating rollers 104 can coat both sides of the PEG film at the same time.

[0048] Furthermore, in the above structure, the power assembly 003 also includes a double-headed bevel gear 304, which is rotatably connected to the outside of the coating operation frame 102. Both ends of the double-headed bevel gear 304 are respectively engaged with bevel gears 303 on the side away from the servo motor 302 on the two sets of screws 301. Both sets of screws 301 are screwed with internal thread blocks 305.

[0049] The double-headed bevel gear 304 allows the two sets of screws 301 to rotate simultaneously, enabling the screws 301 to drive the internal thread block 305 to move.

[0050] Furthermore, in the above structure, a connecting frame 306 is installed on one side of each of the two sets of internal threaded blocks 305. A sliding rod 307 is installed inside the connecting frame 306. A slider 308 is sleeved on the sliding rod 307. Springs 309 are symmetrically sleeved on the sliding rod 307. The two sets of springs 309 are located on both sides of the slider 308. The two sets of sliders 308 are slidably connected to the corresponding sliding cavity 201. The two sets of sliders 308 are fixedly connected to the corresponding sliding plate 202.

[0051] Two sets of springs 309 can keep the slider 308 in the position within the connecting frame 306, so that when the internal thread block 305 moves, it will be limited when the coating roller 104 moves into the paint dispensing frame 501. At this time, the slider 308 will continue to move within the connecting frame 306, thereby squeezing the spring 309 on one side. When the internal thread block 305 moves back and forth, it can drive the coating roller 104 to disengage from the paint dispensing frame 501. This structure can prolong the residence time of the coating roller 104 in the paint dispensing frame 501, so that the coating roller 104 can apply paint.

[0052] Furthermore, in the above structure, two sets of guide rods 311 are sequentially installed downwards on the outer side of the coating operation frame 102 away from the screw 301. Guide blocks 310 are slidably connected to both sets of guide rods 311, and the connection method between the guide blocks 310 and the corresponding slide plates 202 is the same as the connection method between the sliders 308 and the slide plates 202.

[0053] The cooperation between guide rod 311 and guide block 310 can keep the coating roller 104 moving smoothly.

[0054] Furthermore, in the above structure, the drive assembly 004 also includes a swing rod 404, which is rotatably connected to the side of the coating work frame 102 near the fixed frame 407. The swing rod 404 is symmetrically provided with sliding grooves 405. Fixed rods 406 are installed on the side of the upper and lower sets of connecting shafts 402 near the electric telescopic rod 403, and the fixed rods 406 are slidably connected to the corresponding sliding grooves 405.

[0055] The swing rod 404 can move the rack 401 in opposite directions, so that when the coating roller shaft 104 is inside the paint dispensing frame 501, the rack 401 disengages from the corresponding spur gear 207, thereby allowing the coating roller shaft 104 to rotate freely, thus ensuring uniform coating.

[0056] Furthermore, in the above structure, the feeding assembly 005 also includes a paint filling chamber 503, which is opened inside the paint filling frame 501. The two sets of paint filling chambers 503 are connected by a pipeline, and the paint filling chambers 503 are connected to the delivery pump 101 by a pipeline. Each set of paint filling frames 501 is provided with a collection trough 504, and the two sets of collection troughs 504 are connected by a pipeline. The collection troughs 504 are connected to the delivery pump 101 by a pipeline, and a scraping groove 505 is provided between the collection troughs 504 and the inner wall of the paint filling frame 501.

[0057] When the coating roller 104 is inside the paint filling frame 501, when the internal thread block 305 moves back, a squeezing force is formed by the spring 309, so that the scraper 505 can fit against the coating roller 104 and be subjected to force. At this time, the rotating coating roller 104 can scrape off the excess paint on the surface, thereby avoiding the occurrence of blurred pattern coating. The delivery pump 101 can deliver the paint into the paint filling chamber 503, and the excess paint will also be delivered back into the paint filling chamber 503 by the delivery pump 101.

[0058] Furthermore, in the above structure, multiple sets of through holes 506 are opened through the inner wall of the paint filling frame 501 and the paint filling cavity 503. Each through hole 506 is fitted with a sealing block 507, and the sealing block 507 is located inside the paint filling frame 501. A spring 508 is fitted between the through hole 506 and the sealing block 507. Multiple sets of connecting holes 509 are opened in a ring on the inner wall of the through hole 506, and one end of the connecting hole 509 is covered by the sealing block 507.

[0059] As the coating roller 104 moves, the spring 2 309 applies pressure under the continuous movement of the internal thread block 305, thereby squeezing the sealing block 507, so that the coating can enter the coating filling frame 501 through the connecting hole 509 and deliver the coating to the surface of the coating roller 104.

[0060] Furthermore, in the above structure, two sets of paint application frames 501 are symmetrically rotatably connected to a second spur gear 510 on the side near the rack 401. A single-headed bevel gear 511 is installed on one side of each second spur gear 510, and each set of single-headed bevel gears 511 passes through the coating operation frame 102, and each set of single-headed bevel gears 511 meshes with the corresponding bevel gear 303.

[0061] By meshing the single-headed bevel gear 511 with the bevel gear 303, the single-headed bevel gear 511 can rotate, thereby driving the second spur gear 510 to rotate. When the coating roller shaft 104 is inside the paint dispensing frame 501, the first spur gear 207 and the second spur gear 510 can mesh, thereby achieving the effect of uniform paint application.

[0062] like Figure 1-10As shown, by passing the PEG film through the feed trough 103 and the feed trough 2 502, the coating is delivered to the coating filling chamber 503 by the delivery pump 101. Simultaneously, the servo motor 302 starts, causing the coating roller 104 to reciprocate in opposite directions. With continuous movement, the coating roller 104 moves into the coating filling frame 501. At the same time, the electric telescopic rod 403 pushes the connecting shaft 402, causing the rack 401 to disengage from the first spur gear 207. Simultaneously, the continuous movement of the internal thread block 305 causes the coating roller 104 to press against the sealing block 507, and the first spur gear 207 and the second spur gear 510 mesh with each other, allowing the coating to be applied to the coating roller 104. Furthermore, with the servo motor 302 driving in the reverse direction, the internal thread block 305 engages with the second spring 309 during the reverse drive process. The coating roller 104 is squeezed so that it will fit against the scraper 505 before disengaging from the paint filling frame 501. As it rotates, excess paint can be scraped off. At the same time, the electric telescopic rod 403 drives the rack 401 to reset and re-mesh with the spur gear 207 the instant the coating roller 104 leaves the paint filling frame 501. At this time, the coating roller 104 will perform pattern coating on the PEG film surface. By changing the position of the PEG film, continuous processing can be performed. This structure can achieve simultaneous pattern coating on both sides of the PEG film. The entire coating process is automated, which greatly reduces the labor intensity. The automatic feeding and scraping during the coating process ensures the integrity of the pattern after coating, thereby greatly improving the efficiency and quality of pattern coating.

[0063] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for coating a pattern on the surface of a PEG film roll, comprising a bearing plate (001), characterized in that: The bearing plate (001) is provided with a coating operation frame (102) above, symmetrically provided with conveying pumps (101) on the bearing plate (001), and two groups of conveying pumps (101) are located on both sides of the coating operation frame (102), symmetrically provided with feeding grooves (103) on the inner wall of the coating operation frame (102), and symmetrically provided with coating roller shafts (104) in the coating operation frame (102). The coating assembly (002) provided in the coating operation frame (102) comprises slide cavities (201) symmetrically provided on the inner wall of the coating operation frame (102), and two groups of slide cavities (201) are sequentially provided downward, and each group of slide cavities (201) is slidably connected with a slide plate (202), and each group of slide plates (202) is provided with a connecting frame (203) on one side. The power assembly (003) provided outside the coating operation frame (102) comprises screw rods (301) rotatably connected outside the coating operation frame (102) and sequentially provided with two groups downward, and the coating operation frame (102) is provided with a servo motor (302) outside, and the output end of the servo motor (302) is connected with a group of screw rods (301), and the two groups of screw rods (301) are symmetrically provided with bevel gears (303). The driving assembly (004) provided in the coating operation frame (102) comprises a rack (401) symmetrically provided inside the coating operation frame (102) on one side, and the rack (401) is engaged with a corresponding circular gear (207), and the two groups of racks (401) are symmetrically provided with connecting shafts (402), and each group of connecting shafts (402) is connected with the inner wall of the coating operation frame (102), and the coating operation frame (102) is provided with a fixed frame (407) on one side, and the fixed frame (407) is provided with an electric telescopic rod (403) inside, and the output end of the electric telescopic rod (403) is fixedly connected with a group of connecting shafts (402). The feeding assembly (005) provided in the coating operation frame (102) comprises a coating filling frame (501) symmetrically provided on the inner wall of the coating operation frame (102), and the two groups of coating filling frames (501) are provided with feeding grooves (502) inside, and the feeding grooves (502) are connected with corresponding feeding grooves (103).

2. The apparatus for coating a pattern on the surface of a PEG film web according to claim 1, wherein: The coating assembly (002) further comprises a slide rod (204) mounted in each group of connecting frames (203), each group of connecting frames (203) is slidably connected with a sliding seat (205), and the sliding seat (205) is connected with the corresponding slide rod (204) and the corresponding coating roller shaft (104) between the two groups of sliding seats (205), and the slide rod (204) is sleeved with a spring (206), and the spring (206) is connected with the sliding seat (205) and the inner wall of the connecting frame (203) on both sides.

3. The apparatus for coating a pattern on the surface of a PEG film web according to claim 1, wherein: The power assembly (003) further includes a double-end bevel gear (304), which is rotationally connected outside the coating operation frame (102), and the two ends of the double-end bevel gear (304) are respectively engaged with the bevel gears (303) on the two groups of screw rods (301) away from the servo motor (302) on one side.

4. The apparatus for coating a pattern on the surface of a PEG film web according to claim 3, wherein: One side of the two groups of the inner threaded blocks (305) is respectively provided with a connecting frame two (306), the connecting frame two (306) is provided with a sliding rod two (307) inside, the sliding rod two (307) is provided with a sliding block (308) sleeved thereon, the sliding rod two (307) is symmetrically provided with a spring two (309) sleeved thereon, and the two groups of spring two (309) are located on the two sides of the sliding block (308), the two groups of sliding blocks (308) are slidably connected with the corresponding sliding cavities (201), and the two groups of sliding blocks (308) are fixedly connected with the corresponding sliding plates (202).

5. The apparatus for coating a pattern on the surface of a PEG film web according to claim 4, wherein: The coating operation frame (102) is provided with two groups of guide rods (311) on the side away from the screw rod (301) and sequentially downward, the two groups of guide rods (311) are slidably connected with guide blocks (310) on the two groups of guide rods (311), and the connection mode of the guide block (310) and the corresponding sliding plate (202) is the same as that of the sliding block (308) and the sliding plate (202).

6. The apparatus for coating a pattern on the surface of a PEG film web of claim 1, wherein: The driving assembly (004) further includes a swing rod (404), which is rotationally connected on one side of the coating operation frame (102) close to the fixed frame (407), the swing rod (404) is symmetrically provided with a sliding groove (405) on the swing rod (404), and the two groups of connecting shafts (402) on the upper and lower sides of the electric telescopic rod (403) are respectively provided with a fixed rod (406) on one side, and the fixed rod (406) is slidably connected with the corresponding sliding groove (405).

7. The apparatus for coating a pattern on the surface of a PEG film web of claim 1, wherein: The feeding assembly (005) further includes a coating filling cavity (503), which is provided in the coating filling frame (501), and the two groups of coating filling cavities (503) are connected by pipelines, and the coating filling cavity (503) is connected with the pipeline of the conveying pump (101), the two groups of the coating filling frame (501) are provided with a collecting groove (504) inside, and the two groups of collecting grooves (504) are connected by pipelines, and the collecting groove (504) is connected with the pipeline of the conveying pump (101), and the collecting groove (504) and the inner wall of the coating filling frame (501) are provided with a scraping groove (505) penetratingly.

8. The apparatus for coating a pattern on the surface of a PEG film web according to claim 7, wherein: A plurality of through holes (506) are penetratingly provided between the inner wall of the coating filling frame (501) and the coating filling cavity (503), the sealing block (507) is limitingly installed in the through hole (506), and the sealing block (507) is located in the coating filling frame (501), the spring three (508) is installed between the through hole (506) and the sealing block (507), and a plurality of connecting holes (509) are annularly distributed and provided on the inner wall of the through hole (506), and one end of the connecting hole (509) is covered by the sealing block (507).

9. The apparatus for applying a pattern on the surface of a PEG film web of claim 8, wherein: Two groups of the paint filling frame (501) are symmetrically connected with round gear two (510) on the side close to the rack (401), one side of the round gear two (510) is installed with single head bevel gear (511), and each group of single head bevel gear (511) penetrates the coating operation frame (102), and each group of single head bevel gear (511) is engaged with the corresponding bevel gear (303).

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