A polypropylene pad fabric lamination device

Abstract

This invention relates to the field of fabric lamination, and more particularly to a polypropylene pad fabric lamination device. The technical problem addressed by this invention is that existing devices involve cumbersome alignment steps, sweat or grease corroding the laminating steel plate during the alignment process, and excess adhesive after lamination reducing the quality of the polypropylene pad fabric. The technical implementation of this invention includes a base, a lower lamination frame, and a cleaning unit. The lower lamination frame is placed on top of the base, and the cleaning unit is installed on the base. The cleaning unit includes a first positioning frame, which is symmetrically distributed and fixed to the base. The beneficial effects of this invention are: through the cooperation of the friction ring and the second positioning frame, the cleaning roller can always adhere to the top lamination steel plate, thereby removing dust, sweat, and grease from the top lamination steel plate, preventing dust from interfering with lamination and sweat and grease from corroding the top lamination steel plate, improving the lamination effect of the polypropylene pad fabric, and extending the service life of the top lamination steel plate.

Description

Technical Field

[0001] This invention relates to the field of fabric lamination, and more particularly to a polypropylene pad fabric lamination apparatus. Background Technology

[0002] Polypropylene mats are mats made of polypropylene material. They have advantages such as being lightweight, having low moisture absorption, and low static electricity. Therefore, they are commonly used as industrial fabrics. Through lamination processes, polypropylene mats can be composited, thereby improving their performance.

[0003] Existing polypropylene mat fabric lamination devices involve manually placing a flexible mat, a laminating steel plate, adhesive-soaked polypropylene mat fabric, another laminating steel plate, and a flexible mat layer by layer on a horizontal lamination tray. The lamination tray is then placed into the device for lamination. In practice, workers need to use tools to align the laminating steel plate and the polypropylene mat fabric, a cumbersome process. Furthermore, when aligning the top laminating steel plate, workers often press their thumbs against the top surface to improve alignment, leaving sweat or grease fingerprints that corrode the steel plate. This reduces the flatness and pressure distribution of the laminating steel plate, shortening its lifespan. When the polypropylene mat fabric is excessively compressed during lamination, or when it absorbs too much adhesive, the adhesive overflows between the two laminating steel plates, forming a colloid and lowering the quality of the laminated polypropylene mat fabric. Therefore, there is an urgent need for a polypropylene mat fabric lamination device that facilitates alignment and removes sweat, grease, and excess adhesive. Summary of the Invention

[0004] In order to overcome the shortcomings of existing devices, such as cumbersome alignment steps, corrosion of the laminating steel plate by sweat or grease during the alignment process, and reduced quality of polypropylene pad fabric due to excess adhesive after lamination, the technical problem of the present invention is to provide a polypropylene pad fabric lamination device that is easy to align and can remove sweat, grease, and excess adhesive.

[0005] The technical implementation of the present invention is as follows: a polypropylene pad fabric lamination device includes a base, a lower lamination frame, and a cleaning unit. The lower lamination frame is placed on the top of the base, and the cleaning unit is installed on the base. The cleaning unit includes a first positioning frame, and the first positioning frames are symmetrically distributed and fixed on the base. A damping ring is fixedly connected inside the first positioning frame, and a rotating frame is rotatably connected inside the damping ring. A mounting shell is fixedly connected to one end of the rotating frame, and a first sliding groove is opened on one side of the mounting shell. A cleaning roller is movably connected between the first sliding grooves of the two mounting shells. A friction ring is fixedly connected to the other end of the rotating frame. Second positioning frames are symmetrically distributed and fixedly connected to the front end of the lower lamination frame. The second positioning frames are in frictional contact with the friction ring, and the top of the rotating frame is in contact with the lower lamination frame.

[0006] Preferably, the cleaning unit further includes a round-headed column, and an irregular stepped hole is opened in the mounting housing. The round-headed column is slidably connected in the irregular stepped hole. One end of the round-headed column contacts the lower lamination frame, and the other end is fixedly connected to a wedge block. A first tension spring is connected between the wedge block and the irregular stepped hole. A cutting blade is slidably connected in the mounting housing, and one side of the cutting blade is slidably connected to the wedge block.

[0007] Preferably, the cleaning unit further includes a third positioning frame, which is fixedly connected to the top of the mounting housing. A third sliding groove is provided on one side of the third positioning frame, and a scraper is slidably connected between the symmetrical third sliding grooves. A first compression spring is connected between the third sliding groove and the scraper, and the bottom of the scraper contacts the cleaning roller.

[0008] Preferably, it also includes a drive frame, a drive frame is slidably connected inside the lower lamination frame, an elastic element is connected between the lower lamination frame and the drive frame, racks are symmetrically fixed to the left and right sides of the drive frame, gears are symmetrically rotatably connected inside the lower lamination frame, the gears mesh with the racks, the symmetrically distributed gears are jointly fixed to a knife gate, and the drive frame can fit against the knife gate.

[0009] Preferably, it further includes a lower lamination bracket and an alignment unit. The surface of the lower lamination frame is symmetrically provided with second sliding grooves. The lower lamination frame is provided with the lower lamination bracket and the alignment unit. The rear end of the lower lamination bracket contacts the drive frame. The front end of the lower lamination bracket is fixedly connected to a handrail. A first flexible plate is fixedly connected to the lower lamination bracket. The alignment unit includes a sliding support frame. The lower lamination bracket is rectangularly distributed with sliding support frames fixedly connected to it. The sliding support frames are all slidably connected to the second sliding grooves. A sliding guide frame is fixedly connected to the top of the base. The top of the sliding guide frame contacts the second sliding grooves. The sliding support frames can slide on the sliding guide frame.

[0010] Preferably, the alignment unit further includes an L-shaped frame, which is rotatably connected to the lower lamination frame. A torsion spring is connected between the L-shaped frame and the lower lamination frame. Rollers are rotatably connected to both ends of the L-shaped frame, and the bottom of the rollers contacts the first flexible plate.

[0011] Preferably, it also includes an upper laminating unit. The upper laminating unit is provided on the top of the base. The upper laminating unit includes uprights. Four uprights are symmetrically fixed to the base. The top of the four uprights are jointly fixed to the upper laminating shell. Screws are symmetrically distributed and rotatably connected to the upper laminating shell. The bottom of the two screws is rotatably connected to the base and threadedly connected to the lower laminating frame. The lower laminating frame is slidably connected to the two uprights located at the rear. A first motor is symmetrically installed on the top of the upper laminating shell. The output shaft of the first motor is fixedly connected to the screws.

[0012] Preferably, the upper laminating unit further includes a heating plate and a heat spreader plate. Two heating plates are fixedly connected inside the upper laminating shell, and a heat spreader plate is fixedly connected to the bottom of the upper laminating shell. The heat spreader plate is in contact with the two heating plates. A second flexible plate is fixedly connected to the bottom of the heat spreader plate. The second flexible plate is fixedly connected to the upper laminating shell, and the first flexible plate cooperates with the second flexible plate.

[0013] Preferably, it also includes an air extraction unit, which includes an air extraction shell. The top of the upper laminating shell is fixedly connected to the air extraction shell. Variable pitch studs are symmetrically rotatably connected inside the air extraction shell. The two variable pitch studs are tightly engaged. A first vent is opened inside the upper laminating shell. A second vent is opened at the bottom of the air extraction shell. The first vent and the second vent of the upper laminating shell are connected. A third vent is symmetrically opened at the top of the air extraction shell. A pressure limiting unit is installed on the top of the air extraction shell.

[0014] Preferably, the pressure limiting unit includes a limiting shell, a limiting shell fixed to the top of the suction shell, a fourth vent hole in the upper pressure shell, a T-shaped air inlet valve installed on the top of the upper pressure shell, the T-shaped air inlet valve communicating with the fourth vent hole, one end of the limiting shell connected to the T-shaped air inlet valve via a hose, a rotating column rotatably connected inside the limiting shell, a second motor installed on the top of the limiting shell, the output shaft of the second motor fixedly connected to the rotating column, a pressure cylinder slidably connected to the outer wall of the rotating column, a second tension spring fixedly connected to the top of the inside of the limiting shell, the second tension spring rotatably connected to the pressure cylinder, the pressure cylinder in frictional contact with the variable pitch stud on the right side, a piston column slidably connected inside the limiting shell, a second compression spring connected between the limiting shell and the piston column, the piston column contacting and squeezing the pressure cylinder.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention, through the cooperation of the friction ring and the second positioning frame, enables the cleaning roller to always adhere to the top laminating steel plate, thereby removing dust, sweat and grease from the top laminating steel plate, preventing dust from interfering with lamination and sweat and grease from corroding the top laminating steel plate, improving the lamination effect of the polypropylene pad fabric, and increasing the service life of the top laminating steel plate.

[0016] This invention, by installing a sliding support frame, a sliding guide frame, and an L-shaped frame, causes the lower laminating bracket to tilt downwards when moving forward. This makes the L-shaped structure of the lower laminating bracket easier to align the bottom laminating steel plate, the polypropylene padding fabric, and the top laminating steel plate. At the same time, the L-shaped frame allows the bottom and top laminating steel plates to automatically align in the left and right directions when moving backward, reducing the steps required to align the fabric and improving the efficiency of the polypropylene padding fabric lamination.

[0017] This invention uses a cutting blade to cut off excess adhesive, reducing the amount of adhesive spillage that could lower the quality of the polypropylene pad fabric. Simultaneously, when the round-headed column is not compressed, the cutting blade is retracted into the mounting housing via a wedge block, preventing the cutting blade from injuring workers and ensuring their safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the support pole of the present invention; Figure 3 This is a partial cross-sectional schematic diagram of the first positioning frame of the present invention; Figure 4 This is a schematic diagram of the rotating frame of the present invention; Figure 5 This is a partial cross-sectional view from a first perspective of the housing of the present invention; Figure 6 This is a partial cross-sectional view from a second perspective of the housing of the present invention; Figure 7 This is an exploded view of the alignment unit of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle; Figure 9 This is a partial cross-sectional schematic diagram of the drive frame of the present invention; Figure 10 This is a schematic diagram of the variable pitch stud of the present invention; Figure 11 This is a partial cross-sectional schematic diagram of the pressure cylinder of the present invention; Figure 12 This is a partial cross-sectional schematic diagram of the upper laminated shell of the present invention.

[0019] The above-mentioned figures include the following reference numerals: 1. Base; 2. Lower lamination frame; 201. Second sliding groove; 202. Drive frame; 203. Elastic element; 204. Rack; 205. Gear; 206. Knife gate; 3. Lower lamination bracket; 301. Handrail; 302. First flexible plate; 4. Cleaning unit; 401. First positioning frame; 402. Damping ring; 403. Rotating frame; 404. Mounting housing; 4041. First sliding groove; 405. Cleaning roller; 406. Friction ring; 407. Second positioning frame; 408. Round head column; 409. Wedge block; 410. Cutting blade; 411. Third positioning frame; 4111. Third sliding groove; 412. Scraper; 5. Alignment. Unit 501, Sliding support frame, 502, Sliding guide frame, 503, L-shaped frame, 504, Roller, 6, Upper lamination unit, 601, Upright pole, 602, Upper lamination shell, 6021, Heating plate, 6022, Heat spreader plate, 6023, Second flexible plate, 6024, First vent hole, 6025, Fourth vent hole, 603, Screw, 604, First motor, 7, Air extraction unit, 701, Air extraction shell, 7011, Second vent hole, 7012, Third vent hole, 702, Variable pitch stud, 8, Pressure limiting unit, 801, Limiting shell, 8011, T-type air inlet valve, 802, Rotating column, 803, Pressure cylinder, 804, Second motor, 805, Piston column. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0021] A polypropylene pad fabric lamination device, such as Figures 1-4As shown, the device includes a base 1, a lower laminating frame 2, and a cleaning unit 4. The lower laminating frame 2 is placed on top of the base 1, and the cleaning unit 4 is installed on the base 1. The cleaning unit 4 includes a first positioning frame 401, which is symmetrically and fixedly connected to the base 1. A damping ring 402 is fixedly connected inside the first positioning frame 401, and a rotating frame 403 is rotatably connected inside the damping ring 402. The damping ring 402 is used to maintain the rotation angle of the rotating frame 403. A mounting shell 404 is fixedly connected to one end of the rotating frame 403. A first sliding groove 4041 is opened on one side of the mounting shell 404. A cleaning roller 405 is movably connected between the first sliding grooves 4041 of the two mounting shells 404. A friction ring 406 is fixedly connected to the other end of the rotating frame 403. A second positioning frame 407 is symmetrically and fixedly connected to the front end of the lower laminating frame 2. The second positioning frame 407 is in frictional contact with the friction ring 406, and the top of the rotating frame 403 is in contact with the lower laminating frame 2.

[0022] like Figures 4-6 As shown, the cleaning unit 4 also includes a round-headed column 408. An irregular stepped hole is opened in the mounting housing 404. The round-headed column 408 is slidably connected in the irregular stepped hole. One end of the round-headed column 408 contacts the lower lamination frame 2, and the other end is fixedly connected to a wedge block 409. A first tension spring is connected between the wedge block 409 and the irregular stepped hole. A cutting blade 410 is slidably connected in the mounting housing 404. One side of the cutting blade 410 is slidably connected to the wedge block 409. The cutting blade 410 is used to cut the excess adhesive of the laminated polypropylene pad fabric.

[0023] like Figures 4-6 As shown, the cleaning unit 4 also includes a third positioning frame 411. The third positioning frame 411 is fixedly connected to the top of the mounting housing 404. A third sliding groove 4111 is provided on one side of the third positioning frame 4111. A scraper 412 is slidably connected between the symmetrical third sliding grooves 4111. The scraper 412 is statically charged. A first compression spring is connected between the third sliding groove 4111 and the scraper 412. The bottom of the scraper 412 contacts the cleaning roller 405.

[0024] like Figure 1 , Figure 7 and Figure 9 As shown, it also includes a drive frame 202, which is slidably connected inside the lower lamination frame 2. The top of the drive frame 202 is an inclined surface. An elastic element 203 is connected between the lower lamination frame 2 and the drive frame 202. Racks 204 are symmetrically fixed to the left and right sides of the drive frame 202. Gears 205 are symmetrically rotatably connected inside the lower lamination frame 2. The gears 205 mesh with the racks 204. The symmetrically distributed gears 205 are all fixed to a guillotine 206. The drive frame 202 can fit against the guillotine 206 to cut off excess polypropylene pad fabric.

[0025] like Figure 1 and Figure 7As shown, it also includes a lower pressing bracket 3 and an alignment unit 5. The surface of the lower pressing frame 2 is symmetrically provided with a second sliding groove 201. The lower pressing frame 2 is provided with a lower pressing bracket 3 and an alignment unit 5. The rear end of the lower pressing bracket 3 is in contact with the drive frame 202. The front end of the lower pressing bracket 3 is fixedly connected to a handrail 301. A first flexible plate 302 is fixedly connected to the lower pressing bracket 3. The alignment unit 5 includes a sliding support frame 501. The lower pressing bracket 3 is rectangularly distributed and fixedly connected with the sliding support frames 501. All sliding support frames 501 are slidably connected to the second sliding groove 201. A sliding guide frame 502 is fixedly connected to the top of the base 1. The end of the sliding guide frame 502 is hook-shaped. The top of the sliding guide frame 502 is in contact with the second sliding groove 201. The sliding support frame 501 can slide on the sliding guide frame 502.

[0026] like Figure 8 As shown, the alignment unit 5 also includes an L-shaped frame 503. The L-shaped frame 503 is symmetrically and rotatably connected to the lower lamination frame 2. A torsion spring is connected between the L-shaped frame 503 and the lower lamination frame 2. Rollers 504 are rotatably connected to both ends of the L-shaped frame 503. The bottom of the rollers 504 contacts the first flexible plate 302. The rollers 504 can contact the lower lamination frame 2.

[0027] like Figures 1-2 As shown, it also includes an upper laminating unit 6. The upper laminating unit 6 is provided on the top of the base 1. The upper laminating unit 6 includes uprights 601. Four uprights 601 are symmetrically fixed to the base 1. The cooperation of the four uprights 601 can keep the upper laminating shell 602 horizontal and stable. The top of the four uprights 601 is fixed to the upper laminating shell 602. Screws 603 are symmetrically distributed and rotatably connected to the upper laminating shell 602. The bottom of the two screws 603 are rotatably connected to the base 1 and threadedly connected to the lower laminating frame 2. The lower laminating frame 2 is slidably connected to the two uprights 601 located at the rear. The top of the upper laminating shell 602 is symmetrically installed with a first motor 604. The output shaft of the first motor 604 is fixed to the screws 603.

[0028] like Figure 12 As shown, the upper lamination unit 6 also includes a heating plate 6021 and a heat spreader 6022. Two heating plates 6021 are fixedly connected inside the upper lamination shell 602, and a heat spreader 6022 is fixedly connected to the bottom of the upper lamination shell 602. The heat spreader 6022 is in contact with the two heating plates 6021, and the heat spreader 6022 can make the temperature of the heating plates 6021 diffuse evenly. A second flexible plate 6023 is fixedly connected to the bottom of the heat spreader 6022. The second flexible plate 6023 is fixedly connected to the upper lamination shell 602. The first flexible plate 302 and the second flexible plate 6023 work together to relieve the pressure during the lamination of the polypropylene pad fabric.

[0029] like Figures 1-2 , Figure 10 and Figure 12As shown, it also includes an air extraction unit 7, which includes an air extraction housing 701. The air extraction housing 701 is fixedly connected to the top of the upper lamination housing 602. Variable pitch studs 702 are symmetrically rotatably connected inside the air extraction housing 701. The two variable pitch studs 702 are tightly engaged. The bottom pitch of the variable pitch stud 702 is larger, and the top pitch is smaller. A first vent hole 6024 is opened inside the upper lamination housing 602. A second vent hole 7011 is opened at the bottom of the air extraction housing 701. The first vent hole 6024 of the upper lamination housing 602 communicates with the second vent hole 7011. A third vent hole 7012 is symmetrically opened at the top of the air extraction housing 701. A pressure limiting unit 8 is installed on the top of the air extraction housing 701.

[0030] like Figures 10-12 As shown, the pressure limiting unit 8 includes a limiting housing 801. The top of the suction housing 701 is fixedly connected to the limiting housing 801. A fourth vent 6025 is opened inside the upper pressure housing 602. A T-type air inlet valve 8011 is installed on the top of the upper pressure housing 602, and the T-type air inlet valve 8011 communicates with the fourth vent 6025. One end of the limiting housing 801 is connected to the T-type air inlet valve 8011 via a flexible hose. The T-type air inlet valve 8011 can be connected at both ends or at all three ends. A rotating column 802 is rotatably connected inside the limiting housing 801. A second motor 804 is installed on the top of the housing 801. The output shaft of the second motor 804 is fixedly connected to the rotating column 802. A pressure cylinder 803 is slidably connected to the outer wall of the rotating column 802. A second tension spring is fixedly connected to the top of the inner part of the housing 801. The second tension spring is rotatably connected to the pressure cylinder 803. The pressure cylinder 803 is in frictional contact with the variable pitch stud 702 on the right side. A piston column 805 is slidably connected inside the housing 801. A second compression spring is connected between the housing 801 and the piston column 805. The bottom of the piston column 805 contacts and squeezes the pressure cylinder 803.

[0031] In the initial state, the front roller 504 contacts the lower lamination frame 2 under the action of the torsion spring, and the rear side of the drive frame 202 contacts the lower lamination frame 2. The operator first pulls the handrail 301, causing the handrail 301 to drive the sliding support frame 501 to slide in the second sliding groove 201 through the lower lamination bracket 3. During the sliding process of the sliding support frame 501, the sliding support frame 501 slides out of the second sliding groove 201 and slides on the sliding guide frame 502 until the front sliding support frame 501 contacts the sliding guide frame 502. When the hook-shaped end of the guide 502 contacts, the lower pressure bracket 3 is in an inclined state. The movement of the lower pressure bracket 3 causes the first flexible plate 302 to move synchronously. Therefore, the first flexible plate 302 remains inclined synchronously. During the sliding out process of the lower pressure bracket 3, the elastic element 203 releases and pushes the drive frame 202 to move forward. The movement of the drive frame 202 drives the gear 205 to rotate through the rack 204. The rotation of the gear 205 causes the gate 206 to disengage from the drive frame 202, so that the gate 206 can cut off the excess polypropylene pad fabric by resetting.

[0032] After tilting the first flexible plate 302, the workers neatly place the bottom laminated steel plate, polypropylene padding fabric, and top laminated steel plate onto the first flexible plate 302 in sequence. The front ends of the bottom and top laminated steel plates contact the lower lamination bracket 3, making it easier to align the front ends of the bottom and top laminated steel plates. Then, the workers push the handrail 301, causing it to slide along the sliding support frame 501 on the sliding guide frame 502 via the lower lamination bracket 3. During the sliding process, the sliding support frame 501 detaches from the sliding guide frame 502 and slides back into the second sliding groove 201, completing its reset. This causes the second sliding groove 201 to cause the lower lamination bracket 3 to press the drive frame 202 back into place. The drive frame 202 then moves... When the elastic element 203 is compressed during movement, if the length of the polypropylene pad fabric exceeds the length of the bottom laminating steel plate during placement, interfering with the subsequent lamination process of the polypropylene pad fabric, the excess polypropylene pad fabric will fall onto the drive frame 202 during the sliding of the sliding support frame 501 on the sliding guide frame 502. The movement of the drive frame 202 drives the gear 205 to rotate via the rack 204. The rotation of the gear 205 causes the gate 206 to re-adhere to the drive frame 202 and reset, thereby cutting off the excess polypropylene pad fabric. The excess polypropylene pad fabric will slide out of the lower laminating frame 2 along the inclined surface at the top of the drive frame 202, realizing the removal of excess polypropylene pad fabric and preventing the excess polypropylene pad fabric from interfering with the subsequent lamination process of the polypropylene pad fabric. During the process of the support 501 sliding into the second sliding groove 201 and resetting, the top laminated steel plate will contact and squeeze the cleaning roller 405, causing the cleaning roller 405 to slide upward along the first sliding groove 4041. The upward sliding of the cleaning roller 405 squeezes the scraper 412 to move, thereby compressing the first compression spring. The cleaning roller 405 rotates while sliding upward along the first sliding groove 4041, causing the dust on the top laminated steel plate to be adhered by the cleaning roller 405, preventing the dust from being distributed on the top laminated steel plate and causing uneven heating during the lamination of the top laminated steel plate. If the staff leaves sweat fingerprints or grease fingerprints on the top laminated steel plate when placing it in order to better align the front end of the top laminated steel plate with the lower lamination bracket 3, the staff may leave sweat fingerprints or grease fingerprints on the top laminated steel plate. Fingerprints can corrode the top laminate steel sheet, reducing its service life. The cleaning roller 405, during its rotation, removes fingerprints and dust from the top laminate steel sheet, keeping it clean and preventing corrosion, thus extending its lifespan. The rotation of the cleaning roller 405 also moves the removed dust, sweat, and grease to the scraper 412, which removes sweat and grease from the surface of the cleaning roller 405. Simultaneously, due to static electricity on the scraper 412, dust on the surface of the cleaning roller 405 is attracted to it, completing the cleaning process.To prevent dust on the cleaning roller 405 from interfering with the lamination and heating of the polypropylene pad fabric, and to prevent sweat and grease from corroding the laminated steel sheet.

[0033] During the resetting process of the sliding support frame 501, the bottom and top laminated steel plates will contact and press the rear roller 504, causing the rear roller 504 to move, which in turn drives the L-shaped frame 503 to rotate and causes the torsion spring to store elastic potential energy. The rotation of the L-shaped frame 503 causes the front roller 504 to rotate and disengage from the lower lamination frame 2, and presses the left or right side of the bottom and top laminated steel plates, so that the bottom and top laminated steel plates drive the polypropylene pad fabric to be located in the middle of the lower lamination bracket 3, preventing the polypropylene pad fabric from being heated unevenly due to its position being close to the edge of the lower lamination frame 2 when it is laminated and heated. After the bottom and top laminated steel plates are adjusted to the correct position, the bottom and top laminated steel plates pass between the two rear rollers 504, at which point the front roller 504 is located directly in front of the rear roller 504.

[0034] After the sliding support frame 501 is reset, the workers begin laminating the polypropylene pad fabric. The workers start the first motor 604, whose output shaft rotates, driving the screw 603 to rotate. The screw 603's rotation causes the lower lamination frame 2 to move upwards along the rear upright 601, thereby moving the lower lamination bracket 3 upwards via the sliding support frame 501. The lower lamination bracket 3, through the first flexible plate 302, moves the bottom lamination steel plate, the polypropylene pad fabric, and the top lamination steel plate upwards. During this upward movement, the lower lamination frame 2 drives the second positioning frame 407 upwards. The movement of the second positioning frame 407 causes the friction ring 406 to rotate. The rotation of the friction ring 406, through the rotating frame 403, causes the mounting housing 404 to rotate synchronously, thus detaching the mounting housing 404 from the lower lamination frame 2. The mounting housing 404 then rotates. The cleaning roller 405 moves synchronously, and the mounting housing 404 rotates, driving the scraper 412 to move synchronously via the third positioning frame 411. Since the rotation radius of the mounting housing 404 is greater than the outer diameter of the friction ring 406, the mounting housing 404 moves faster than the lower laminating frame 2, thus avoiding collision between the lower laminating frame 2 and the rotating frame 403. The friction ring 406 continues to rotate until it disengages from the second positioning frame 407, allowing the cleaning roller 405 to avoid the bottom laminating steel plate, polypropylene pad fabric, and top laminating steel plate. At the same time, the rotation of the mounting housing 404 causes the round-headed column 408 to disengage from the lower laminating frame 2, thereby causing the first tension spring to contract and pull the wedge block 409. The movement of the wedge block 409 causes the round-headed column 408 to move synchronously, and the cutting blade 410 to slide into the mounting housing 404, preventing the cutting blade 410 from cutting the workers and posing a safety threat to them.

[0035] When the lower lamination frame 2 moves upward to contact the upper lamination shell 602, the second flexible plate 6023 contacts and squeezes the top lamination steel plate, causing the top lamination steel plate to exert sufficient pressure on the polypropylene mat fabric. At this time, the lower lamination frame 2, the lower lamination bracket 3, and the upper lamination shell 602 form the first cavity. Then, the operator activates the heating plate 6021, which generates heat and diffuses it evenly through the heat spreader 6022. The heat from the heat spreader 6022 is transferred to the top lamination steel plate through the second flexible plate 6023, and finally to the polypropylene mat fabric through the top lamination steel plate, allowing the adhesive on the polypropylene mat fabric to fully bond the polypropylene mat fabric. To improve the bonding effect of the polypropylene mat fabric, the operator... The operator starts the second motor 804. The output shaft of the second motor 804 rotates, driving the pressure cylinder 803 to rotate via the rotating column 802. The rotation of the pressure cylinder 803 causes the two meshing variable-pitch studs 702 to rotate through compression and friction. It is worth noting that since the lower lamination frame 2, the lower lamination bracket 3, and the upper lamination shell 602 form the first cavity, the first cavity is connected to the first vent 6024 in the upper lamination shell 602. Gas in the first cavity enters the second vent 7011 through the first vent 6024 and then enters the threads of the variable-pitch studs 702. Because the two variable-pitch studs 702 are tightly meshed, the gas flow in the threads of the variable-pitch studs 702 is blocked. As the screw rotates, the pitch of the thread of the variable pitch stud 702 gradually decreases, and the space occupied by the gas in the thread of the variable pitch stud 702 gradually decreases, thus compressing the gas. The gas is eventually released to the outside through the third vent 7012. This causes the air pressure in the first cavity formed by the lower lamination frame 2, the lower lamination bracket 3, and the upper lamination shell 602 to gradually decrease, making the adhesive easier to melt and reducing the amount of air incorporated into the adhesive, thereby improving the adhesive bonding effect and thus improving the lamination effect of the polypropylene pad fabric. It is worth noting that the limiting shell 801 and the piston stud 805 form the second cavity. The first cavity is connected to the second cavity through a hose, a T-type air inlet valve 8011, and a fourth vent 6025. Therefore, as the first cavity... As the air pressure decreases, the air pressure in the second cavity also decreases, causing the second cavity to pull the piston rod 805 upward along the limiting shell 801. At the same time, the second compression spring is compressed. The movement of the piston rod 805 causes the pressure cylinder 803 to be pulled upward by the second tension spring. The pressure cylinder 803 disengages from the variable pitch stud 702, thus preventing the variable pitch stud 702 from rotating. At this time, the air pressure in the first cavity, which consists of the lower lamination frame 2, the lower lamination bracket 3, and the upper lamination shell 602, no longer changes. This prevents the air pressure in the first cavity from being too low, which would cause the adhesive to continuously emit air bubbles and reduce the adhesive bonding effect. At this time, the output shaft of the second motor 804 causes the pressure cylinder 803 to idle through the rotating rod 802, and then the second motor 804 is turned off.

[0036] The polypropylene pad fabric undergoes lamination under heating, low air pressure, and high pressure. Afterwards, the operator adjusts the T-type air inlet valve 8011, allowing outside air to enter the first cavity formed by the lower lamination frame 2, lower lamination bracket 3, and upper lamination shell 602 through the T-type air inlet valve 8011 and the fourth vent 6025. This gradually increases the air pressure within the first cavity. Simultaneously, outside air enters the limiting shell 801 through the T-type air inlet valve 8011 and the hose, further increasing the air pressure within the limiting shell 801. This causes the second compression spring to reset and press the piston rod 805. The piston rod 805 moves, pushing the pressure cylinder 803 downwards, causing the pressure cylinder 803 to reset. The second tension spring is then reloaded. After the initial stretching, the operator starts the first motor 604, causing its output shaft to reverse. This reverses the rotation of the output shaft, moving the lower lamination frame 2 downwards. The downward movement of the lower lamination frame 2, via the sliding support frame 501, moves the lower lamination bracket 3 downwards and resets it. Simultaneously, the downward movement of the lower lamination frame 2 causes the second positioning frame 407 to move synchronously, contacting and pressing the friction ring 406. The friction ring 406, through the rotating frame 403, moves the mounting housing 404. The movement of the mounting housing 404 moves the cleaning roller 405 back onto the top lamination steel plate. At the same time, the movement of the mounting housing 404 causes the lower lamination frame 2 to contact and press the round-headed column 408. The movement of the round-headed column 408 causes the wedge block 409 to move synchronously, stretching the first tension spring. The movement of the wedge block 409 causes the cutting blade 410 to slide out of the mounting housing 404. The operator pulls the handle 301 again, causing the lower lamination bracket 3 to repeat the forward movement. It is worth noting that if there is too much adhesive on the polypropylene pad fabric, the excess adhesive will overflow from between the top and bottom lamination steel plates and form a colloid. Since the front sides of the top and bottom lamination steel plates are squeezed by the lower lamination bracket 3 and the rear sides are squeezed by the drive frame 202, the overflowing colloid will only flow to the left and right sides. The lower lamination bracket 3 moves forward. The cutting blade 410 removes the adhesive between the top and bottom laminated steel plates, thereby improving the quality of the polypropylene mat fabric. The lower lamination bracket 3 moves forward, causing the top and bottom laminated steel plates to disengage from the roller 504. This releases the torsion spring, causing the L-shaped frame 503 to rotate and reset the roller 504. Simultaneously, the top laminated steel plate moves forward and disengages from the cleaning roller 405. At this point, the first compression spring releases, causing the scraper 412 to push the cleaning roller 405 back to its original position. The operator then removes the bottom laminated steel plate, the polypropylene mat fabric, and the top laminated steel plate simultaneously and pushes the handle 301 to make the lower lamination bracket 3 repeat the above reset action, completing the device reset.

[0037] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A polypropylene pad fabric lamination device, comprising a base (1), characterized in that, It also includes a lower lamination frame (2) and a cleaning unit (4). The lower lamination frame (2) is placed on top of the base (1). The cleaning unit (4) is installed on the base (1). The cleaning unit (4) includes a first positioning frame (401). The first positioning frames (401) are symmetrically distributed and fixed on the base (1). A damping ring (402) is fixed inside the first positioning frame (401). A rotating frame (403) is rotatably connected inside the damping ring (402). One end of the rotating frame (403) is fixed to a mounting shell (4). 04), a first sliding groove (4041) is provided on one side of the mounting shell (404), a cleaning roller (405) is movably connected between the first sliding grooves (4041) of the two mounting shells (404), a friction ring (406) is fixedly connected to the other end of the rotating frame (403), and a second positioning frame (407) is symmetrically distributed and fixedly connected to the front end of the lower laminating frame (2). The second positioning frame (407) is in frictional contact with the friction ring (406), and the top of the rotating frame (403) is in contact with the lower laminating frame (2). The cleaning unit (4) also includes a round-headed column (408), and an irregular stepped hole is provided in the mounting housing (404). The round-headed column (408) is slidably connected in the irregular stepped hole. One end of the round-headed column (408) is in contact with the lower laminate frame (2), and the other end is fixedly connected to a wedge block (409). A first tension spring is connected between the wedge block (409) and the irregular stepped hole. A cutting blade (410) is slidably connected in the mounting housing (404). One side of the cutting blade (410) is slidably connected to the wedge block (409). The cleaning unit (4) also includes a third positioning frame (411). The third positioning frame (411) is fixed to the top of the mounting housing (404). A third sliding groove (4111) is provided on one side of the third positioning frame (4111). A scraper (412) is slidably connected between the symmetrical third sliding grooves (4111). A first compression spring is connected between the third sliding groove (4111) and the scraper (412). The bottom of the scraper (412) contacts the cleaning roller (405). It also includes a drive frame (202), a drive frame (202) is slidably connected inside the lower lamination frame (2), an elastic element (203) is connected between the lower lamination frame (2) and the drive frame (202), racks (204) are symmetrically fixed on the left and right sides of the drive frame (202), gears (205) are symmetrically rotatably connected inside the lower lamination frame (2), the gears (205) mesh with the racks (204), the symmetrically distributed gears (205) are together fixed to a knife gate (206), and the drive frame (202) can fit with the knife gate (206); It also includes a lower pressure bracket (3) and an alignment unit (5). The surface of the lower pressure frame (2) is symmetrically provided with a second sliding groove (201). The lower pressure frame (2) is provided with a lower pressure bracket (3) and an alignment unit (5). The rear end of the lower pressure bracket (3) is in contact with the drive frame (202). The front end of the lower pressure bracket (3) is fixedly connected with a handrail (301). The lower pressure bracket (3) is fixedly connected with a first flexible plate (302). The alignment unit (5) includes a sliding support frame (501). The lower pressure bracket (3) is rectangularly distributed and fixedly connected with sliding support frames (501). All sliding support frames (501) are slidably connected to the second sliding groove (201). The top of the base (1) is fixedly connected with a sliding guide frame (502). The top of the sliding guide frame (502) is in contact with the second sliding groove (201). The sliding support frame (501) can slide on the sliding guide frame (502). The alignment unit (5) also includes an L-shaped frame (503), which is rotatably connected to the lower lamination frame (2). A torsion spring is connected between the L-shaped frame (503) and the lower lamination frame (2). Rollers (504) are rotatably connected to both ends of the L-shaped frame (503), and the bottom of the rollers (504) contacts the first flexible plate (302). It also includes an upper lamination unit (6), the upper lamination unit (6) is provided on the top of the base (1), the upper lamination unit (6) includes a pole (601), four poles (601) are symmetrically fixed on the base (1), the top of the four poles (601) are jointly fixed to an upper lamination shell (602), screws (603) are symmetrically distributed and rotatably connected on the upper lamination shell (602), the bottom of the two screws (603) are rotatably connected to the base (1), and both are threadedly connected to the lower lamination frame (2), the lower lamination frame (2) is slidably connected to the two poles (601) located at the rear, and a first motor (604) is symmetrically distributed and installed on the top of the upper lamination shell (602), the output shaft of the first motor (604) is fixed to the screws (603).

2. The polypropylene pad fabric laminating device according to claim 1, characterized in that, The upper laminating unit (6) also includes a heating plate (6021) and a heat spreader (6022). Two heating plates (6021) are fixedly connected inside the upper laminating shell (602). A heat spreader (6022) is fixedly connected to the bottom of the upper laminating shell (602). The heat spreader (6022) is in contact with the two heating plates (6021). A second flexible plate (6023) is fixedly connected to the bottom of the heat spreader (6022). The second flexible plate (6023) is fixedly connected to the upper laminating shell (602). The first flexible plate (302) cooperates with the second flexible plate (6023).

3. The polypropylene pad fabric laminating device according to claim 2, characterized in that, It also includes an air extraction unit (7), which includes an air extraction shell (701). The top of the upper lamination shell (602) is fixedly connected to the air extraction shell (701). The air extraction shell (701) is symmetrically rotatably connected to the variable pitch studs (702). The two variable pitch studs (702) are tightly engaged. The upper lamination shell (602) has a first vent hole (6024). The bottom of the air extraction shell (701) has a second vent hole (7011). The first vent hole (6024) of the upper lamination shell (602) is connected to the second vent hole (7011). The top of the air extraction shell (701) has a third vent hole (7012) symmetrically opened. A pressure limiting unit (8) is installed on the top of the air extraction shell (701).

4. A polypropylene pad fabric laminating device according to claim 3, characterized in that, The pressure limiting unit (8) includes a limiting housing (801), a suction housing (701) with the limiting housing (801) fixedly connected to the top, an upper pressure housing (602) with a fourth vent (6025) inside, a T-type air inlet valve (8011) installed on the top of the upper pressure housing (602), the T-type air inlet valve (8011) communicating with the fourth vent (6025), one end of the limiting housing (801) being connected to the T-type air inlet valve (8011) via a hose, a rotating column (802) rotatably connected inside the limiting housing (801), and a second [unclear - possibly a device or component] installed on the top of the limiting housing (801). The output shaft of the second motor (804) is fixedly connected to the rotating column (802). The outer wall of the rotating column (802) is slidably connected to the pressure cylinder (803). The top of the inner end of the limiting shell (801) is fixedly connected to the second tension spring. The second tension spring is rotatably connected to the pressure cylinder (803). The pressure cylinder (803) is in frictional contact with the variable pitch stud (702) on the right side. The piston column (805) is slidably connected inside the limiting shell (801). The second compression spring is connected between the limiting shell (801) and the piston column (805). The piston column (805) contacts and squeezes the pressure cylinder (803).

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