Door plate film laminating machine

Abstract

The invention belongs to the technical field of film covering, and particularly relates to a door plate film covering machine to solve the technical problem that in the prior art, the effect of reverse blowing blockage removal of adsorption holes in a vacuum adsorption platform is poorer, the door plate film covering machine comprises the vacuum adsorption platform internally provided with an air chamber, and an adsorption hole set is formed in the top of the vacuum adsorption platform; the adsorption hole group comprises a plurality of adsorption holes which are sequentially arranged at intervals from left to right; the door plate film laminating machine further comprises a blocking mechanism, the blocking mechanism comprises a mounting frame and further comprises blocking blocks which are arranged on the mounting frame and correspond to the adsorption holes in a one-to-one mode, and the blocking blocks are slidably assembled on the mounting frame in the left-right direction. The blocking mechanism further comprises a driving component used for driving the blocking block at the closing position to move left and right to the opening position. During use, only part of the adsorption holes are opened, high-pressure gas in the gas chamber is completely sprayed out of the opened adsorption holes, the gas is more concentrated, the reverse blowing acting force is larger, the reverse blowing effect is better, the adsorption holes can be prevented from being blocked, and the reverse blowing blockage removal effect is better.

Description

Technical Field

[0001] The invention belongs to the technical field of laminating, and in particular relates to a door panel laminating machine. Background Art

[0002] Door panels are key components in furniture, architectural decoration and industrial equipment. They are directly exposed to the use environment and need not only to meet structural support requirements but also to be aesthetically pleasing, durable and functional. Therefore, they need to be laminated. Door panel laminating machines are equipment used to perform lamination on door panels.

[0003] Typically, a door panel laminating machine consists of a frame, a vacuum adsorption platform, and a main unit. The platform is movable on the frame and features a door panel placement area with adsorption holes next to it. An air chamber connected to the adsorption holes is located within the platform and is connected to a negative pressure suction mechanism (such as a vacuum pump). The main unit heats and rolls the film material to adhere it to the door panel.

[0004] When in use, first place the door panel on the door panel placement area of ​​the vacuum adsorption platform, then cover the film material on the door panel, and the edge of the film material covers the adsorption hole. The negative pressure suction mechanism starts to work, sucking the film material and sucking the air between the film material and the door panel to make the film material adhere to the door panel; then the vacuum adsorption platform moves to send the door panel and film material into the main machine. The main machine heats the film material and door panel and rolls the film material to make the film material adhere to the door panel, completing the door panel lamination.

[0005] A problem with existing door panel laminating machines is that the suction holes on the vacuum suction platform often clog. This is because debris may accumulate during the film cutting and unwinding process. Furthermore, the glue or adhesive used in laminating can easily overflow during the subsequent rolling process, potentially flowing into the suction holes and solidifying. Clogged suction holes can cause uneven negative pressure distribution, preventing effective suction of the film, which can lead to defects such as bubbles and wrinkles between the film and the door panel.

[0006] To address this issue, the existing approach involves adding an air compressor connected to the air chamber. When the compressor is not operating, it supplies high-pressure gas into the air chamber, which then backflushes the adsorption holes, removing the clogged material. However, in actual use, it has been found that due to the large number of adsorption holes and the fact that only some of them are typically clogged, the high-pressure gas in the air chamber tends to be ejected from the unblocked adsorption holes, weakening the impact on the clogged material, making it impossible to flush out the clogged material (especially solidified glue or adhesive), resulting in a poor backflushing effect. Summary of the Invention

[0007] The invention provides a door panel laminating machine to solve the technical problem in the prior art that the back-blowing and unblocking effect of adsorption holes on a vacuum adsorption platform is poor.

[0008] In order to solve the above problems, the door panel laminating machine provided by the present invention adopts the following technical solutions: a door panel laminating machine includes a vacuum adsorption platform with an air chamber inside, a suction hole group connected to the air chamber is provided on the top of the vacuum adsorption platform, and an air port connected to the air chamber is also provided on the vacuum adsorption platform, and the air port is used to connect an air compressor; the suction hole group includes a plurality of suction holes arranged in sequence and spaced apart along the left and right directions; the door panel laminating machine also includes a blocking mechanism, the blocking mechanism includes a mounting frame that is slidably assembled in the air chamber in a front-rear manner, and also includes a blocking block that is provided on the mounting frame and corresponds to each suction hole one by one, each blocking block is slidably assembled on the mounting frame in a left-right direction, and has a closed position facing the suction hole when the blocking block slides left and right, and also has an open position that opens the suction hole; The blocking mechanism also includes a driving component, which is used to drive the blocking block in the closed position to move left and right to the open position; When the air compressor is turned on for backblowing, the mounting frame moves forward and backward and moves each blocking block to the closed position. The driving component drives each blocking block to open the adsorption hole in turn and keeps the other blocking blocks in the closed position.

[0009] During normal operation, the mounting bracket drives the blocking block to move to one side of the adsorption hole in the front-to-back direction. The adsorption hole is opened, allowing normal adsorption of the membrane material. When the adsorption hole is blocked, it needs to be back-blown. The mounting bracket moves back and forth, placing the blocking block in the closed position, and the blocking block blocks the corresponding adsorption hole. When the driving component is working, it can drive the blocking block to the open position while keeping the other blocking blocks in the closed position. That is, only some of the adsorption holes are opened, and the high-pressure gas in the air chamber is completely ejected from the open adsorption holes. The gas is more concentrated, the back-blowing force is greater, and the back-blowing effect is better, which can prevent the adsorption holes from being blocked and achieve a better back-blowing unblocking effect.

[0010] As a further improvement, a force-bearing block is telescopically assembled on the blocking block, and a force-bearing block elastic member is provided on the blocking block for pushing the force-bearing block in a direction away from the blocking block, and the force-bearing block has a force-bearing inclined surface; The driving component includes a blocking block elastic member provided on the mounting frame, and the blocking block elastic member is used to push the blocking block to the closed position; The driving component also includes a pushing member that is slidably assembled in the air chamber. When the pushing member moves left and right, it pushes the force-bearing inclined surface of the force-bearing block, so that the blocking block overcomes the action of the elastic member of the blocking block and moves to the open position. After the force-bearing block moves toward the blocking block, the pushing member passes over the force-bearing block, and the blocking block is reset to the closed position under the action of the elastic member of the blocking block.

[0011] When the push piece moves left and right, after pushing the load-bearing inclined surface of the load-bearing block, on the one hand, the load-bearing block drives the blocking block to overcome the blocking block elastic member and move to the open position, thereby opening the corresponding adsorption hole, and the gas in the air chamber can be ejected from the adsorption hole to backflush and clean the adsorption hole; on the other hand, the load-bearing block itself overcomes the load-bearing block elastic member and moves toward the blocking block, avoiding the push piece, allowing the push piece to pass over the load-bearing block and continue to move. After the push piece passes over the load-bearing block, the load-bearing block is reset under the action of the load-bearing block elastic member, and the blocking block is reset to the closed position under the action of the blocking block elastic member. Through the movement of the push piece, each adsorption hole can be opened in sequence, and the adsorption hole is closed after backflush.

[0012] As a further improvement, there are at least two adsorption hole groups, and the at least two adsorption hole groups are arranged at intervals along the front-to-back direction, and the adsorption holes in each adsorption hole group are located on the same straight line extending front-to-back; The blocking blocks corresponding to the adsorption holes on the same straight line extending forward and backward are connected together, and at least one of the connected blocking blocks is provided with the force-bearing block.

[0013] As a further improvement, the mounting frame includes mounting plates located on the left and right sides, and at least two guide rods fixed to the mounting plates at both ends, each guide rod corresponding to each adsorption hole group; The blocking block is slidably assembled on the guide rod.

[0014] As a further improvement, the pushing member includes a pushing plate for pushing the force-bearing block and a pushing block for pushing the mounting frame, the pushing block is located on the top of the pushing plate, and the pushing block is located on one side of the pushing plate in the front and rear direction, and the pushing block is provided with a pushing inclined surface, which is used to push the mounting frame in the left and right directions so that the blocking block is placed in a state facing the front and rear of the adsorption hole; the blocking mechanism also includes a mounting frame elastic member provided between the mounting frame and the vacuum adsorption platform, the mounting frame elastic member is used to push the mounting frame so that the blocking block is placed in a state staggered in front and rear with the adsorption hole; The push plate is located below the mounting frame, and the force-bearing block is telescopically assembled at the bottom of the blocking block.

[0015] When the pushing block moves left and right, the pushing inclined surface can push the mounting frame to move forward and backward. In other words, the forward and backward movement of the mounting frame and the left and right movement of the blocking block are all driven by the pushing member. One power source realizes two mutually perpendicular movements, saving power source and reducing operating costs.

[0016] As a further improvement, the pushing block has the pushing inclined surfaces on both the left and right sides, and the pushing block can push the mounting frame to move in the front-back direction when moving left or right; Both sides of the force-bearing block are provided with the force-bearing inclined surfaces, and when the pushing plate moves left and right, the blocking block can be pushed to the open position by the force-bearing block.

[0017] There are pushing slopes on both sides of the pushing block and force-bearing slopes on both sides of the force block. The pushing block can open and close the blocking block when it moves left and right. During backblowing, the pushing block does not need to return after moving in one direction.

[0018] As a further improvement, the door panel laminating machine further includes a filter screen arranged in the air chamber. When the film material is adsorbed, the debris entering the air chamber through the adsorption holes is blocked by the filter screen. A scraping portion is provided at the bottom of the pushing member, and the scraping portion can scrape off debris on the filter screen when the pushing member moves left and right.

[0019] The filter screen filters debris, preventing it from clogging the negative pressure suction mechanism, while the scraper removes debris from the filter screen to prevent clogging. The pusher moves left and right, opening and closing the suction holes while also scraping the filter screen, offering a more centralized function.

[0020] As a further improvement, the filter is mounted in the air chamber in a floating manner in the vertical direction, and the blocking mechanism further includes an elastic support member provided in the air chamber, the elastic support member being located below the filter and pushing the filter upward; The filter screen includes inclined sections at the left and right ends and a horizontal section in the middle, wherein the inclined sections are inclined downward from the horizontal section; when the pushing members are located at the left and right ends of the air chamber, they correspond to the inclined sections in the upper and lower directions, and when the pushing members move in the left and right directions, they push the filter screen downward through the inclined sections; The air port is used to be connected to the negative pressure suction mechanism at the same time; when the membrane material is adsorbed, the filter screen is located above the air port, and when backblowing, the pushing member pushes the filter screen to the bottom of the air port.

[0021] During adsorption, the filter is located above the air port and can filter out debris; during backflushing, the filter is located below the air port and the high-pressure gas coming out of the air port will not backflush the filter, thereby avoiding blowing debris on the filter out of the adsorption hole.

[0022] As a further improvement, the air chamber has debris receiving cavities located at the left and right ends of the bottom, and the pushing member is used to scrape the debris on the filter screen into the debris receiving cavities.

[0023] As a further improvement, a door panel placement area is provided on the top of the vacuum adsorption platform, and the air chamber and adsorption hole group are provided on the front and rear sides of the door panel placement area on the vacuum adsorption platform.

[0024] The beneficial effects are: 1. During normal operation, the mounting bracket drives the blocking block to move to one side of the adsorption hole in the front-to-back direction. The adsorption hole is opened, and the membrane material can be adsorbed normally. When the adsorption hole is blocked, it is necessary to backflush the adsorption hole. The mounting bracket moves back and forth to place the blocking block in the closed position. The blocking block blocks the corresponding adsorption hole. When the driving component is working, it can drive the blocking block to the open position while keeping the other blocking blocks in the closed position. That is, only some of the adsorption holes are opened, and the high-pressure gas in the air chamber is completely ejected from the opened adsorption holes. The gas is more concentrated, the backflush force is greater, and the backflush effect is better. It can prevent the adsorption holes from being blocked, and the backflush deblocking effect is better.

[0025] 2. When the push piece moves left and right, after pushing the load-bearing block's load-bearing inclined surface, on the one hand, the load-bearing block drives the blocking block to overcome the blocking block's elastic member and move to the open position, thereby opening the corresponding adsorption hole, and the gas in the air chamber can be ejected from the adsorption hole to backflush and clean the adsorption hole; on the other hand, the load-bearing block itself overcomes the load-bearing block's elastic member and moves toward the blocking block, avoiding the push piece, allowing the push piece to pass over the load-bearing block and continue to move. After the push piece passes over the load-bearing block, the load-bearing block is reset under the action of the load-bearing block's elastic member, and the blocking block is reset to the closed position under the action of the blocking block's elastic member. Through the movement of the push piece, each adsorption hole can be opened in sequence, and the adsorption hole is closed after backflush.

[0026] 3. When the pushing block moves left and right, the pushing inclined surface can push the mounting frame to move forward and backward. In other words, the forward and backward movement of the mounting frame and the left and right movement of the blocking block are all driven by the pushing member. One power source realizes two mutually perpendicular movements, saving power source and reducing operating costs.

[0027] 4. There are pushing slopes on both sides of the pushing block and force-bearing slopes on both sides of the force-bearing block. The pushing block can open and close the blocking block when it moves left and right. During backblowing, the pushing block does not need to return after moving in one direction.

[0028] 5. The filter screen can filter out debris and prevent it from clogging the negative pressure suction mechanism, while the scraper can scrape away debris on the filter screen to prevent the filter screen from being blocked. When the pusher moves left and right, it can not only open and close the adsorption holes, but also scrape the filter screen, making the function more concentrated.

[0029] 6. During adsorption, the filter is located above the air port and can filter out debris; during backflushing, the filter is located below the air port, and the high-pressure gas coming out of the air port will not backflush the filter, thereby avoiding blowing the debris on the filter out of the adsorption hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a three-dimensional diagram of a door panel laminating machine; Figure 2This is the main view of the door panel laminating machine when the blocking block and the adsorption hole are staggered front and back; Figure 3 for Figure 2 Cross-sectional view of section AA; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a top view of the door panel laminating machine when the blocking block and the adsorption hole are staggered front and back; Figure 6 for Figure 5 Cross-sectional view of the middle BB section; Figure 7 for Figure 6 Enlarged view of point B in the middle; Figure 8 This is the main view of the door panel laminating machine when the blocking block and the adsorption hole are facing each other; Figure 9 for Figure 8 A partial schematic diagram of the CC section cut; Figure 10 This is a top view of the door panel laminating machine when the blocking block and the adsorption hole are facing each other; Figure 11 for Figure 10 Cross-sectional view of the middle DD section; Figure 12 for Figure 11 Enlarged view of point C in the middle; Figure 13 This is a top view of the vacuum adsorption platform; Figure 14 for Figure 13 Cross-sectional view of section EE; Figure 15 is a top view of the blocking mechanism; Figure 16 It is the main view of the blocking mechanism; Figure 17 for Figure 16 Enlarged view of point D in the middle; Figure 18 It is a structural schematic diagram of three blocking blocks connected together; Figure 19 for Figure 18 Cross-sectional view of the FF section; Figure 20 Schematic diagram of the filter structure.

[0031] Description of reference numerals: 1. Frame; 2. Host; 3. Vacuum adsorption platform; 31. Door panel placement area; 32. Adsorption hole group; 33. Adsorption hole; 34. Air chamber; 35. Debris storage cavity; 36. Slide; 37. Air port; 38. Nut block; 41. Mounting frame; 42. Mounting frame elastic member; 43. Mounting plate; 44. Connecting plate; 45. Guide rod; 46. Fixing plate; 47. Blocking block; 48. Blocking block elastic member; 49. Connecting rod; 410. Load-bearing block; 411. Load-bearing inclined surface; 412. Pushing member; 413. First drive screw; 414. Pushing plate; 415. Pushing block; 416. Pushing inclined surface; 417. Load-bearing block elastic member; 51. Filter screen; 52. Horizontal section; 53. Inclined section; 54. First cylinder; 55. Second cylinder; 61. Second drive screw. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0033] The embodiment of the door panel laminating machine provided by the present invention: like Figures 1 to 20 As shown, the door panel laminating machine includes a frame 1, a main machine 2, a vacuum adsorption platform 3, a driving mechanism, and a blocking mechanism and a filtering structure arranged in the vacuum adsorption platform 3.

[0034] like Figures 1 to 14 As shown, the vacuum adsorption platform 3 is slidably assembled on the frame 1 along the left-right direction. The vacuum adsorption platform 3 is used to place the door panel and adsorb the film material covering the door panel. The top of the vacuum adsorption platform 3 is provided with a door panel placement area 31, and the door panel placement area 31 is used to place the door panel. Adsorption holes 33 are provided on the top of the vacuum adsorption platform 3, and there are adsorption holes 33 on both the front and back sides of the door panel placement area 31. The adsorption holes 33 on the same side are arranged in a matrix, and the adsorption holes 33 located on the same straight line in the left-right direction are defined as an adsorption hole group 32. There are three adsorption hole groups 32 on the front and back sides of the door panel placement area 31, and the adsorption holes 33 of each adsorption hole group 32 are located on the same straight line in the front-to-back direction.

[0035] A nut block 38 is fixed to the bottom of the vacuum adsorption platform 3 , and a threaded hole is opened in the nut block 38 extending leftward and rightward.

[0036] The vacuum adsorption platform 3 has two air chambers 34 arranged in a spaced-apart arrangement along the front-to-back direction. These chambers 34 correspond to and communicate with the adsorption holes 33 on either side of the door panel placement area 31. Debris accommodating cavities 35 are defined on the left and right sides of the bottom of each air chamber 34, protruding in the left-right direction. A chute 36 extending along the front-to-back direction is defined at the top of each air chamber 34.

[0037] The vacuum adsorption platform 3 is provided with an air port 37, which is connected to the air chamber 34. The air port 37 is connected to both an external negative pressure suction mechanism, thereby creating a negative pressure environment within the air chamber 34, and an external air compressor, thereby creating a high pressure environment within the air chamber 34. Specifically, a main pipe can be connected to the air port 37, which is connected to two branch pipes. The two branch pipes are respectively connected to the negative pressure suction mechanism and the air compressor. Valves are provided on the branch pipes to control the opening and closing of the branch pipes. When the film material needs to be adsorbed, the negative pressure suction mechanism is activated; when the adsorption hole 33 needs to be back-blown, the air compressor is activated.

[0038] The number of the blocking mechanisms is equal to and corresponds to the number of the air chambers 34 . The blocking mechanisms include a mounting frame 41 , a mounting frame elastic member 42 , a fixing plate 46 , a blocking block 47 , and a driving component.

[0039] The mounting frame 41 slides forward and backward within the slide groove 36 of the air chamber 34. The mounting frame 41 comprises a mounting plate 43, a connecting plate 44, and a guide rod 45. Two mounting plates 43 are spaced apart in the left-right direction. The mounting plates 43 extend forward and backward, parallel to each other, and contact the slide groove 36. A connecting plate 44 connects the left and right mounting plates 43 and is located at one end of the mounting plates 43, near the center of the vacuum adsorption platform 3.

[0040] The guide rod 45 extends in the left-right direction, and the left and right ends of the guide rod 45 are respectively fixed on the two mounting plates 43. There are three guide rods 45, and the three guide rods 45 are parallel to each other. The three guide rods 45 correspond to the three adsorption hole groups 32 one by one.

[0041] The mounting frame elastic member 42 is located in the slide groove 36. The mounting frame elastic member 42 is connected between the mounting plate 43 and the vacuum adsorption platform 3. The mounting frame elastic member 42 here is a compression spring. The mounting frame elastic member 42 applies an elastic force in the front-to-back direction to the mounting plate 43, causing the mounting plate 43 to slide toward the middle position of the vacuum adsorption platform 3.

[0042] The number of the fixing plates 46 and the blocking blocks 47 is equal to the number of the adsorption holes 33 and corresponds one to one.

[0043] The fixing plates 46 are fixed on the guide rods 45. In the left-right direction, each fixing plate 46 is located on the same side of the corresponding adsorption hole 33. The blocking block 47 is slidably sleeved on the guide rods 45 along the left-right direction.

[0044] like Figure 18 、 Figure 19 As shown, three blocking blocks 47 located on the same straight line in the front-to-back direction are connected together by a connecting rod 49 . Specifically, the connecting rod 49 connects two adjacent blocking blocks 47 in the front-to-back direction.

[0045] Here, the three connected blocking blocks 47 together constitute a blocking block group. In the blocking block group, a force-bearing block 410 is installed at the bottom of the blocking block 47 located in the middle position. The force-bearing block 410 is telescopically assembled at the bottom of the blocking block 47 in the up-down direction. The bottom end of the force-bearing block 410 is a pointed end, thereby forming force-bearing inclined surfaces 411 on the left and right sides of the force-bearing block 410. The force-bearing block 410 and the blocking block 47 are connected by a force-bearing block elastic member 417. The force-bearing block elastic member 417 pushes the force-bearing block 410 downward, wherein the force-bearing block elastic member 417 is generally a compression spring. When the force-bearing inclined surface 411 of the force-bearing block 410 is subjected to a pushing force in the left-right direction, the force-bearing block 410 will drive the blocking block 47 to overcome the action of the blocking block elastic member 48 and move in the left-right direction, and the force-bearing block 410 will overcome the action of the force-bearing block elastic member 417 and move upward.

[0046] The function of the driving component is to first close each adsorption hole 33 and then open each adsorption hole 33 in sequence when back-flushing the adsorption holes 33. The driving component includes a pushing member 412, a first driving screw 413, a motor, and a sealing block elastic member 48.

[0047] The number of blocking block elastic members 48 is equal to and corresponds to the number of fixing plates 46 and blocking blocks 47. The blocking block elastic members 48 connect the fixing plates 46 and blocking blocks 47. When the mounting frame elastic members 42 and 48 are in their natural positions, each blocking block 47 and the corresponding suction hole 33 are aligned in the front-to-back direction, but are arranged sequentially in the front-to-back direction, and the blocking blocks 47 do not seal the suction holes 33. When the mounting frame 41 slides, overcoming the force of the mounting frame elastic members 42, the blocking blocks 47 can move directly below the corresponding suction holes 33, thereby sealing the corresponding suction holes 33.

[0048] The push member 412 slides in the left-right direction within the air chamber 34 and comprises a push plate 414 and a push block 415. The push plate 414 is located below the mounting frame 41, with its thickness extending in the left-right direction. The push block 415 is fixedly mounted on top of the push plate 414 and is located on one side of the push plate 414 in the front-to-back direction, specifically near the center of the vacuum adsorption platform 3. The top of the push block 415 is located above the bottom surface of the mounting frame 41. The push block 415 is triangular in shape, with push slopes 416 on both its left and right sides.

[0049] The filter structure is installed in the air chamber 34 and is located below the blocking mechanism. The filter structure includes a filter screen 51 and an elastic support member.

[0050] The filter screen 51 includes a horizontal section 52 and inclined sections 53 located on the left and right sides of the horizontal section 52 . The inclined sections 53 are inclined downward from the horizontal section 52 . The horizontal section 52 is provided with filter holes.

[0051] The elastic support member is fixedly mounted at the bottom of the air chamber 34 and is connected to the filter screen 51. The elastic support member is used to push the filter screen 51 upward. Here, the elastic support member includes a first cylinder 54 fixed to the filter screen 51, a second cylinder 55 fixed to the bottom of the air chamber 34, and a spring. The first cylinder 54 is sleeved outside the second cylinder 55. The upper end of the spring is connected to the filter screen 51, and the lower end is connected to the bottom of the air chamber 34.

[0052] When the pushing members 412 are positioned at the left and right ends, they are aligned vertically with the left and right ends of the filter 51. The elastic support members push the filter 51 upward, positioning the filter 51 above the air port 37. Gas and debris entering the air chamber 34 through the adsorption holes 33 are filtered by the filter 51 before entering the air port 37. During backflush, the pushing members 412 move horizontally, with the bottom of the pushing members 412 pushing the filter 51 downward via the inclined sections 53, causing the filter 51 to descend below the air port 37. As the pushing members 412 move horizontally, their bottoms push debris on the filter 51 to the left and right ends of the filter 51. The debris then flows along the inclined sections 53 into the debris-receiving chambers 35 on both sides.

[0053] The function of the driving mechanism is to drive the vacuum adsorption platform 3 to move left and right. The driving mechanism includes a second driving screw 61. The second driving screw 61 is rotatably mounted on the frame 1 around an axis extending left and right. The second driving screw 61 passes through the nut block 38 and is threadedly engaged with the nut block 38. When the second driving screw 61 rotates, the nut block 38 is driven to move left and right.

[0054] It should be noted that in actual use, a pressure relief valve can be installed on the vacuum adsorption platform 3, and the pressure relief valve is connected to the air chamber 34. When all the adsorption holes 33 are closed, the pressure in the air chamber 34 continues to rise. When the pressure in the air chamber 34 reaches the set value, the pressure relief valve opens to relieve pressure.

[0055] Usage process: During normal operation, the door panel laminating machine is in Figures 2 to 7 , at which point the push members 412 are located at the left and right ends, and the filter 51 is pushed upward to above the air port 37. The mounting frame 41 and the blocking block 47 are pushed by the mounting frame elastic member 42 to a position arranged in front and behind the adsorption hole 33, and the adsorption hole 33 is not blocked. The door panel is placed on the door panel placement area 31, and the film material is covered on the door panel. The vacuum adsorption mechanism is activated, adsorbing the edge of the film material through the adsorption hole 33. Air enters the air chamber 34 through the adsorption hole 33, and the filter 51 filters impurities in the air. The air then enters the air port 37.

[0056] During backflush, the blocking mechanism's motor starts, and the push member 412 moves left and right. Here, the push member 412 moves from right to left. The push slope 416 of the push block 415 pushes against the connecting plate 44 of the mounting bracket 41. The mounting bracket 41 overcomes the force of the mounting bracket's elastic member 42 and moves back and forth. The blocking block 47 is aligned vertically with the adsorption hole 33, and the blocking block 47 is in the closed position. Simultaneously, the push plate 414 presses the filter screen 51 downward, causing it to drop below the air port 37. The air compressor starts, filling the air chamber 34 with compressed gas.

[0057] When the pushing plate 414 moves to the left to the rightmost row of blocking blocks 47, the pushing plate 414 pushes the force-bearing inclined surface 411 of the force-bearing block 410. On the one hand, the force-bearing block 410 drives the blocking block 47 to move to the left, so that the blocking block 47 is staggered with the adsorption hole 33, and the high-pressure gas in the air chamber 34 is ejected from the adsorption hole 33, blowing away the debris in the adsorption hole 33, and the blocking block 47 is in the open position; on the other hand, the force-bearing block 410 itself moves upward relative to the blocking block 47, thereby avoiding the pushing plate 414. When the pushing plate 414 passes over the force-bearing block 410, the force-bearing block 410 is reset under the action of the force-bearing block elastic member 417, and the blocking block 47 is reset under the action of the blocking block elastic member 48 and re-blocks the adsorption hole 33. Therefore, when the pushing member 412 moves from right to left, each row of adsorption holes 33 is opened and closed in sequence, so that the gas is ejected from the opened adsorption holes 33 in a more concentrated manner, thereby improving the back-blowing effect.

[0058] During the movement of the pushing member 412, the bottom of the pushing plate 414 can scrape off debris on the filter screen 51 and cause the debris to flow along the inclined section 53 into the debris receiving chamber 35. In this embodiment, the bottom of the pushing plate 414 is used to scrape off debris on the filter screen 51, and the bottom of the pushing plate 414 constitutes a scraping portion.

[0059] In this embodiment, an air port 37 is provided on the vacuum adsorption platform 3 corresponding to the air chamber 34. The air port 37 is connected to both the negative pressure suction mechanism and the air compressor. The filter 51 is configured to float up and down. During adsorption, the filter 51 is located above the air port 37, and during backflushing, the filter 51 is located below the air port 37. In other embodiments, two air ports 37 may be provided corresponding to the air chamber 34, one air port 37 connected to the negative pressure suction mechanism and located below the filter 51, and the other air port 37 connected to the air compressor and located above the filter 51.

[0060] In this embodiment, the pushing block 415 is provided with a pushing inclined surface 416. When the pushing block 415 moves left and right, it can push the mounting frame 41 to move forward and backward through the pushing inclined surface 416. In other embodiments, the pushing block 415 can be removed, and in order to drive the mounting frame 41 to move forward and backward, another structure such as a cylinder or an electric push rod can be provided. In this case, the mounting frame elastic member 42 can be eliminated.

[0061] In this embodiment, the blocking blocks 47 corresponding to the adsorption holes 33 located on the same straight line extending front to back are connected together, and a force-bearing block 410 is provided on one of the blocking blocks 47. In other embodiments, a force-bearing block 410 may be provided on each blocking block 47. In this case, the blocking blocks 47 corresponding to the adsorption holes 33 located on the same straight line extending front to back may not be connected together.

[0062] In other embodiments, the driving component may include a telescopic part corresponding to each blocking block 47, and the telescopic part is installed on the mounting frame. During backblowing, only one or two adsorption holes 33 are opened at a time and the other adsorption holes 33 are closed; by opening each adsorption hole 33 in turn, all adsorption holes 33 can be backblown.

[0063] In addition, in the description of this specification, “a plurality of” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A door panel laminating machine, comprising a vacuum adsorption platform with an air chamber inside, a group of adsorption holes connected to the air chamber provided on the top of the vacuum adsorption platform, and an air port connected to the air chamber provided on the vacuum adsorption platform, the air port being used to connect to an air compressor; characterized in that: The adsorption hole group includes a plurality of adsorption holes arranged in sequence and spaced apart in the left-right direction; the door panel laminating machine also includes a blocking mechanism, which includes a mounting frame that is slidably assembled in the air chamber, and a blocking block that is provided on the mounting frame and corresponds to each adsorption hole one by one, and each blocking block is slidably assembled on the mounting frame in the left-right direction. When the blocking block slides left-right, it has a closed position facing the adsorption hole and an open position that opens the adsorption hole. The blocking mechanism also includes a driving component, which is used to drive the blocking block in the closed position to move left and right to the open position; When the air compressor is turned on for backblowing, the mounting frame moves forward and backward and moves each blocking block to the closed position. The driving component drives each blocking block to open the adsorption hole in turn and keeps the other blocking blocks in the closed position.

2. The door panel laminating machine according to claim 1, characterized in that: The blocking block is telescopically assembled on the blocking block, and the blocking block is provided with a blocking block elastic member for pushing the blocking block in a direction away from the blocking block, and the blocking block has a blocking inclined surface; The driving component includes a blocking block elastic member provided on the mounting frame, and the blocking block elastic member is used to push the blocking block to the closed position; The driving component also includes a pushing member that is slidably assembled in the air chamber. When the pushing member moves left and right, it pushes the force-bearing inclined surface of the force-bearing block, so that the blocking block overcomes the action of the elastic member of the blocking block and moves to the open position. After the force-bearing block moves toward the blocking block, the pushing member passes over the force-bearing block, and the blocking block is reset to the closed position under the action of the elastic member of the blocking block.

3. The door panel laminating machine according to claim 2, characterized in that: There are at least two adsorption hole groups, and the at least two adsorption hole groups are arranged at intervals along the front-to-back direction, and the adsorption holes in each adsorption hole group are located on the same straight line extending front-to-back; The blocking blocks corresponding to the adsorption holes on the same straight line extending forward and backward are connected together, and at least one of the connected blocking blocks is provided with the force-bearing block.

4. The door panel laminating machine according to claim 3, characterized in that: The mounting frame includes mounting plates on the left and right sides, and at least two guide rods fixed to the mounting plates at both ends, each guide rod corresponding to each adsorption hole group; The blocking block is slidably assembled on the guide rod.

5. The door panel laminating machine according to any one of claims 2 to 4, characterized in that: The pushing member includes a pushing plate for pushing the force-bearing block and a pushing block for pushing the mounting frame, the pushing block is located on the top of the pushing plate and on one side of the pushing plate in the front-to-back direction, and the pushing block is provided with a pushing inclined surface, which is used to push the mounting frame in the left-right direction so that the blocking block is placed in a state facing the front and back of the adsorption hole; the blocking mechanism also includes a mounting frame elastic member provided between the mounting frame and the vacuum adsorption platform, the mounting frame elastic member is used to push the mounting frame so that the blocking block is placed in a state staggered in front and back with the adsorption hole; The push plate is located below the mounting frame, and the force-bearing block is telescopically assembled at the bottom of the blocking block.

6. The door panel laminating machine according to claim 5, characterized in that: The pushing inclined surfaces are provided on both the left and right sides of the pushing block, and the pushing block can push the mounting frame to move in the front-back direction when moving left or right; Both sides of the force-bearing block are provided with the force-bearing inclined surfaces, and when the pushing plate moves left and right, the blocking block can be pushed to the open position by the force-bearing block.

7. The door panel laminating machine according to any one of claims 2 to 4, characterized in that: The door panel laminating machine also includes a filter screen arranged in the air chamber. When the film material is adsorbed, the debris entering the air chamber through the adsorption holes is blocked by the filter screen. A scraping portion is provided at the bottom of the pushing member, and the scraping portion can scrape off debris on the filter screen when the pushing member moves left and right.

8. The door panel laminating machine according to claim 7, characterized in that: The filter is mounted in the air chamber in a floating manner in the vertical direction. The blocking mechanism further comprises an elastic support member disposed in the air chamber. The elastic support member is located below the filter and pushes the filter upward. The filter screen includes inclined sections at the left and right ends and a horizontal section in the middle, wherein the inclined sections are inclined downward from the horizontal section; when the pushing members are located at the left and right ends of the air chamber, they correspond to the inclined sections in the upper and lower directions, and when the pushing members move in the left and right directions, they push the filter screen downward through the inclined sections; The air port is used to be connected to the negative pressure suction mechanism at the same time; when the membrane material is adsorbed, the filter screen is located above the air port, and when backblowing, the pushing member pushes the filter screen to the bottom of the air port.

9. The door panel laminating machine according to claim 8, characterized in that: The air chamber has debris accommodating cavities located at the left and right ends of the bottom, and the pushing piece is used to scrape the debris on the filter screen into the debris accommodating cavities.

10. The door panel laminating machine according to any one of claims 1 to 4, characterized in that: A door panel placement area is provided on the top of the vacuum adsorption platform, and the air chamber and adsorption hole group are provided on both the front and rear sides of the door panel placement area on the vacuum adsorption platform.

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