Automatic wrapping machine for door pocket plate

Abstract

The utility model belongs to the technical field of hot melt adhesive film covering, and discloses an automatic door pocket plate covering machine which comprises a machine frame, a feeding device, an unwinding device, a film winding device, a film cutting device, a gluing device, a pressing roller device, a pressing wheel device, a width adjusting device and a control device and further comprises a handheld scanning gun used for identifying the width of a door pocket plate. The width adjusting device comprises a moving plate arranged on the rack and a first driving device used for driving the moving plate to move, and the pressing wheel device is fixedly arranged on the moving plate; the film cutting device comprises a cutter arranged on the rack and a second driving device used for driving the cutter to move. The signal output end of the handheld scanning gun is connected with the signal input end of the control device, and the signal output end of the control device is connected with the signal input end of the first driving device and the signal input end of the second driving device. The film laminating machine can greatly reduce the workload and improve the width adjusting precision and efficiency, is high in automation degree, and is suitable for laminating the door pocket plates with non-uniform specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot melt adhesive laminating and relates to a covering machine, in particular to an automatic covering machine for door cover plates. Background Art

[0002] The production of paint-free doors includes two parts: door panels and door covers. The door covers are fixed to the wall and the door panels are installed on the door covers. The door covers and door panels are produced in matching colors and textures. The paint-free process is adopted, that is, a coating film is pasted on the door covers and door panels to produce doors of different colors and textures.

[0003] When installing door frames, due to the different thickness of the wall, it is necessary to produce a variety of door frames of different widths to meet different installation environments. At present, a coating machine is used to coat the coating film on the door frame. The coating machine of the prior art includes a feeding device, an unwinding device, a film winding device, a film cutting device, a gluing device, a pressure roller device, a pressure wheel device and a width adjustment device. The coating film roll is placed on the unwinding device, and the movement path is changed by the film winding device so that the coating film and the door frame move synchronously. During the film winding process, the gluing device coats glue on the coating film, the pressure roller device presses the coating film coated with glue on the door frame, and the pressure wheel device coats the coating film on both sides of the door frame. The width adjustment device can drive the pressure wheel device to move to adapt to the door frame of different widths. When adjusting the coating width, the film cutting device manually adjusts the film cutting width to cut off the excess coating film. The disadvantages of traditional coating machines are: the width adjustment device is to install the rod of the fixed pressure wheel device on the slider, and control the position of the slider through multiple handwheels to achieve the purpose of adjusting the coating width. However, due to the different specifications of door frames, mass production is not possible, and the coating width needs to be continuously adjusted according to the order quantity of the door frames. When adjusting, the width of the door frames is first measured manually with a ruler, and then each handwheel is frequently adjusted according to the width of the substrate, and the position of the film cutting device is adjusted. However, this adjustment method has a large workload and low efficiency, and requires high skills of the operator, resulting in low adjustment accuracy. Utility Model Content

[0004] In order to solve the above deficiencies existing in the prior art, the utility model aims to provide an automatic door cover machine, so as to reduce the workload and improve the efficiency and accuracy of adjusting the film width.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An automatic door cover plate covering machine, comprising a frame, a feeding device, an unwinding device, a film winding device, a film cutting device, a gluing device, a pressing roller device, a pressing wheel device, a width adjustment device and a control device, and also comprising a handheld scanning gun for identifying the width of the door cover plate; the width adjustment device comprises a moving plate arranged on the frame and a first driving device for driving the moving plate to move, and the pressing wheel device is fixedly arranged on the moving plate; the film cutting device comprises a cutter arranged on the frame and a second driving device for driving the cutter to move;

[0007] The signal output end of the handheld scanning gun is connected to the signal input end of the control device, and the signal output end of the control device is connected to the signal input end of the first driving device and the signal input end of the second driving device.

[0008] As a limitation of the present utility model, the glue coating device includes a glue gun for containing glue and a glue control device for adjusting the length of the inner cavity of the glue gun, and a glue outlet nozzle is fixedly provided on the glue gun;

[0009] The glue control device includes a blocking rod slidably arranged in the glue gun, a third driving device for driving the blocking rod to move, and a blocking piece fixed to the blocking rod. The shape of the blocking rod matches the inner cavity of the glue gun. The blocking piece is located in the glue outlet nozzle and its shape matches the inner cavity of the glue outlet nozzle.

[0010] As a further definition of the present utility model, the first driving device includes a first motor screw guide device, the movable plate is fixed on the first nut of the first motor screw guide device, at least two first screws are provided, both are arranged on the frame, one end of each first screw is connected to a gear box, and two adjacent gear boxes are connected by a force transmission rod, and one of the gear boxes is fixedly connected to the first motor.

[0011] As another limitation of the present invention, the second driving device includes a second motor screw guide device, and the cutter is fixed on a second nut of the second motor screw guide device.

[0012] As a limitation of the present utility model, the third driving device includes a third motor screw guide device, the blocking rod is fixed on the third nut of the third motor screw guide device, and the blocking rod passes through the end of the glue gun and extends into the glue gun.

[0013] As a further limitation of the present utility model, a fine-tuning rod is slidably provided at the other end of the glue gun, the fine-tuning rod passes through the glue gun and extends into the glue gun, a fine-tuning plate is fixedly provided on the fine-tuning rod, the shape of the fine-tuning rod matches the shape of the inner cavity of the glue gun, the fine-tuning plate is located in the glue outlet nozzle, and its shape matches the inner cavity of the glue outlet nozzle, a handwheel rod is threadedly connected to the fine-tuning rod, the handwheel rod is rotatably connected to the frame, a handwheel is fixedly provided at one end of the handwheel rod, a scale is fixedly provided on the frame, and a pointer is fixedly provided on the fine-tuning rod.

[0014] As another limitation of the present invention, a film guide plate for receiving the cut covering film is fixedly provided on the frame.

[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] (1) The utility model automatically identifies the width of the door frame through a handheld scanner, and transmits the signal to the control device, which automatically causes the first drive device to drive the movable plate to move, so that the pressure wheel device on the movable plate can automatically move to the edge of the door frame. At the same time, the cutter on the film cutting device is automatically controlled by the second drive device, and can automatically move the cutter to the position where cutting is required according to the width identified by the handheld scanner, thereby eliminating the trouble of manually adjusting the hand wheel. In addition, the electrical signal control can reduce the adjustment error, and is more efficient and accurate than manual adjustment.

[0017] (2) The glue dispensing length of the glue coating device of the utility model can be adapted to the width of the coated film after being cut. Compared with the prior art where the glue coating device cannot control the glue coating width and thus causes glue waste, the utility model saves more materials and avoids glue waste;

[0018] (3) The first driving device of the utility model drives multiple screw guide rails to move simultaneously through a first motor, which can save manufacturing costs, and the control device only controls the movement of the first motor, thereby improving the movement accuracy of the moving plate;

[0019] (4) The utility model adjusts the glue discharge width by controlling the length of the cavity in the glue gun, and is driven by the third driving device, making the use and regulation more convenient and accurate;

[0020] (5) The provision of the fine-tuning rod in the gluing device of the utility model is conducive to the alignment of the fixed edge of the gluing and the fixed edge of the coating film. Through fine-tuning, the alignment accuracy of the two can be improved;

[0021] (6) The film guide plate of the utility model can guide the cut coating film without affecting the position of the coating film, thereby improving the smoothness of the operation of the entire equipment.

[0022] In summary, the utility model can greatly reduce the workload, improve the width adjustment accuracy and efficiency, has a high degree of automation, and is suitable for laminating door panels with non-uniform specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0025] Figure 2It is a schematic diagram of the front view of the installation of the pressure wheel device and the first motor lead screw guide device of the embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the top view of the structure of the installation of the pressure wheel device and the first motor lead screw guide device of the embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the front view of the film cutting device and the second machine lead screw guide device installed in the embodiment of the utility model;

[0028] Figure 5 It is a front view schematic diagram of the installation of the glue gun and the glue control device of the embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of a glue gun according to an embodiment of the utility model.

[0030] In the figure: 1, frame; 2, feeding device; 3, unwinding device; 4, film winding device; 5, film cutting device; 51, cutter; 52, film guide plate; 6, glue coating device; 61, glue gun; 62, glue outlet nozzle; 63, blocking rod; 64, blocking plate; 7, pressure roller device; 8, pressure wheel device; 9, width adjustment device; 91, moving plate; 10, control device; 11, first motor lead screw guide; 111, first motor; 112, first nut; 113, gear box; 114, force transmission rod; 12, second motor lead screw guide device; 121, second motor; 122, second nut; 13, third motor lead screw guide device; 131, third motor; 132, third nut; 14, fine-tuning rod; 15, fine-tuning plate; 16, handwheel rod; 17, handwheel; 18, scale; 19, pointer; 20, coating film. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention, and are not used to limit the present invention.

[0032] Example: Automatic door panel covering machine

[0033] like Figure 1As shown, the coating machine of this embodiment has basically the same structure as the hot melt adhesive coating machine in the prior art, and the structure of the existing part mainly includes a frame 1, a feeding device 2, a unwinding device 3, a film winding device 4, a film cutting device 5, a gluing device 6, a pressure roller device 7, a pressure wheel device 8, a width adjustment device 9 and a control device 10, and its working principle and basic structure have not been modified much. The improved part mainly adds a handheld scanning gun for identifying the width of the door frame, and changes the manual adjustment structure of the original film cutting device 5 and the width adjustment device 9 into an automatic adjustment structure, and at the same time changes the original gluing device 6 that cannot control the gluing width into an automatic adjustment of the glue output width.

[0034] The structure of the existing coating machine is as follows: the feeding device 2 includes a plurality of transmission wheels arranged on the frame 1, the rotation direction of the transmission wheels is the same as the length direction of the coating machine, the door frame is placed on the transmission wheels, and the transmission wheels transport the door frame from one end to the other end of the coating machine. Two unwinding devices 3 are provided, both of which are arranged above the feeding device 2, and both include an inflatable shaft rotatably arranged on the frame 1, and the inflatable shaft is used to install the coating film roll. The film winding device 4 is arranged above the feeding device 2 and located on the side of the unwinding device 3. The film winding device 4 includes several rollers, and the coating film 20 is wound on the rollers. The direction of the coating film 20 is changed by the rollers so that one side of the coating film 20 can be attached to the door frame. The film cutting device 5 is arranged on the side of one of the rollers. When the width of the door frame changes, the film cutting device 5 is used to cut off the excess coating film 20 so that the width of the coating film 20 matches the width of the door frame. The position of the cutter 51 on the film cutting device 5 is adjusted manually. The glue coating device 6 is arranged on the frame 1, and is used to apply glue to the surface of the coating film 20 that is in contact with the door frame. The pressure roller device 7 is rotatably arranged on the frame 1, and is used to press the coating film 20 onto the door frame so that the coating film 20 is closely attached to the door frame. The pressure roller device 8 adopts the existing technology, and is used to make the edge of the coating film 20 cover the two side surfaces of the door frame. By setting the inclination angles of multiple pressure rollers, the coating film 20 is closely attached to the edge of the door frame. The pressure roller device 8 includes multiple vertical rods and pressure rollers fixed on each vertical rod. The pressure rollers can be adjusted up and down on the vertical rods, and the angle of the pressure rollers on the vertical rods can be adjusted. The existing technology will not be elaborated in detail. Since the position of the pressure roller needs to be in contact with the edge of the door frame, it is necessary to adjust the position of the pressure roller according to the width of the door frame. The existing width adjustment device 9 is a screw slider structure, and the vertical rod is fixed on the slider. The position of the slider is adjusted by the hand wheel so that the pressure roller is located at the edge of the door frame.

[0035] The main improvements of this embodiment are: the width recognition structure of the door frame, the automatic adjustment structure of the pressure wheel device 8, the automatic adjustment structure of the film cutting device 5 and the automatic adjustment structure of the glue coating device 6. Through structural improvements, the degree of automation of the entire equipment is higher, and the adjustment efficiency and accuracy are higher. The structure of the improved part is elaborated in detail below.

[0036] The handheld scanner gun is a barcode scanner gun used at supermarket checkout counters, and the signal output end of the handheld scanner gun is connected to the signal input end of the control device 10. Before lamination, a barcode recording the door cover width information will be attached to the door cover in advance. When in use, the worker holds the handheld scanner gun and scans the barcode on the door cover. The handheld scanner gun can identify the width information of the door cover and automatically transmit it to the control device 10. The internal principle and structure are all existing technologies and will not be elaborated in detail.

[0037] like Figure 2 , Figure 3 As shown, the width adjustment device 9 includes a moving plate 91 and a first driving device. The first driving device includes a first motor screw guide rail device 11. In this embodiment, the first motor screw guide rail device 11 has two first screw guide rails, both of which are arranged on the frame 1. Three or four first screw guide rails can also be arranged. Each screw guide rail is threadedly connected with a first nut 112. The two ends of the moving plate 91 are respectively fixed on the two first nuts 112. The vertical rod for installing the pressure wheel is fixed on the moving plate 91, and moves in the direction of approaching or moving away from the side of the door frame plate with the first nut 112. In this embodiment, in order to facilitate information exchange between the control device 10 and the first drive device and reduce interaction errors, a gear box 113 is connected to one end of each first lead screw guide rail, and two adjacent gear boxes 113 are connected by a force transmission rod 114. One of the gear boxes 113 is fixedly connected to the first motor 111. The first motor 111 drives one gear box 113 to rotate, and the gear box 113 drives a first lead screw guide rail device to rotate, and drives the remaining gear boxes 113 to rotate through the force transmission rod 114, and the remaining gear boxes 113 drive the first lead screw guide rails connected thereto to rotate, so as to move the movable plate 91. The control device 10 transmits the door frame plate width identified by the handheld scanner to the first motor 111, and the first motor 111 drives the pressure wheel on the movable plate 91 to move as a whole toward or away from the side of the door frame plate, thereby completing the automatic adjustment of the width of the pressure wheel device 8.

[0038] like Figure 4As shown, the film cutting device 5 includes a cutter 51 arranged on the frame 1 and a second driving device for driving the cutter 51 to move. The second driving device includes a second motor screw guide rail device 12, and a second screw nut 122 is threadedly connected to the second screw guide rail of the second motor screw guide rail device 12. The cutter 51 is fixed to the second screw nut 122 through a vertical rod, and the second screw nut 122 is driven to move by the second motor 121. The control device 10 transmits the door frame width identified by the handheld scanner to the second motor 121, and the second motor 121 drives the cutter 51 on the second screw nut 122 to move, so that the cut coating film 20 is adapted to the width of the door frame. A film guide plate 52 for receiving the cut coating film 20 is fixed on the frame 1, and one end of the cut coating film 20 is placed on the film guide plate 52, and the excess coating film 20 will move along the film guide plate 52 to a position that does not affect the coating.

[0039] like Figure 5 , Figure 6 As shown, the glue coating device 6 includes a glue gun 61 and a glue control device. The glue gun 61 is a slender structure, and a cavity for holding glue is provided inside. A glue outlet 62 is fixedly provided on the glue gun 61. The glue outlet 62 is a duckbill structure, and the gap in the middle is connected to the inner cavity of the glue gun 61. The length of the glue outlet 62 is matched with the width of the coating film 20 through the glue control device. The glue control device includes a blocking rod 63 slidably arranged in the glue gun 61, a third driving device for driving the blocking rod 63 to move, and a blocking piece 64 fixed on the blocking rod 63. The blocking rod 63 passes through the end of the glue gun 61 and extends into the glue gun 61. The shape of the blocking rod 63 matches the structure of the inner cavity of the glue gun 61, that is, the cross-sections of the two are the same. The blocking rod 63 is inserted into the inner cavity of the glue gun 61, and the length of the glue stored in the inner cavity of the glue gun 61 is controlled by controlling the insertion length of the blocking rod 63. The blocking piece 64 is located in the gap of the glue outlet nozzle 62, and its shape matches the gap of the glue outlet nozzle 62. The blocking piece 64 moves with the blocking rod 63 to control the width of the glue outlet nozzle 62. The third driving device is a third motor screw guide device 13. The blocking rod 63 is fixed on the third screw nut 132 of the third motor screw guide device 13. The rotation of the third motor 131 drives the blocking rod 63 on the third screw nut 132 to move along the inner cavity of the glue gun 61.

[0040] A fine-tuning rod 14 is slidably provided at the other end of the glue gun 61. One end of the fine-tuning rod 14 passes through the other end of the glue gun 61 and extends into the inner cavity of the glue gun 61. A fine-tuning plate 15 is fixedly provided on the fine-tuning rod 14. The shape of the fine-tuning rod 14 matches the shape of the inner cavity of the glue gun 61, that is, the cross-sectional structures of the two match. The fine-tuning plate 15 is located in the gap of the glue outlet nozzle 62, and its shape matches the gap of the glue outlet nozzle 62. One end of the fine-tuning rod 14 located outside the glue gun 61 is threadedly connected to a handwheel rod 16. The handwheel rod 16 is provided with an external thread. One end of the fine-tuning rod 14 is provided with an internal thread. The handwheel rod 16 is inserted into the fine-tuning rod 14 and connected by threads. The handwheel rod 16 is rotatably connected to the frame 1, a handwheel 17 is fixedly provided at one end of the handwheel rod 16, a scale 18 is fixedly provided on the frame 1, a pointer 19 is rotatably provided on the fine-tuning rod 14, so that the pointer 19 does not rotate with the fine-tuning rod 14, and by rotating the handwheel 17, the fine-tuning rod 14 is driven to rotate, so that the fine-tuning plate 15 controls the gluing position on the other side of the glue gun 61.

[0041] When using this embodiment, the worker aims the handheld scanner at the barcode on the door frame to scan, and the handheld scanner automatically identifies the width of the door frame and transmits the width information to the control device 10. The control device 10 simultaneously transmits the width information of the door frame to the first motor 111, the second motor 121 and the third motor 131. The first motor 111 drives the pressure wheel device 8 on the movable plate 91 to move to the position of the edge of the door frame, the second motor 121 drives the cutter 51 to move to the position required for cutting, and the third motor 131 drives the blocking rod 63 to move to the gluing position matching the width of the door frame. The three automatically adjust the width to adapt to the width of the door frame, which greatly improves the efficiency of width adjustment, and is controlled by electrical signals with higher precision.

[0042] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic door panel covering machine, comprising a frame, a feeding device, a reeling device, a film winding device, a film cutting device, a gluing device, a pressing roller device, a pressing wheel device, a width adjusting device and a control device, characterized in that: It also includes a handheld scanner for identifying the width of the door cover; the width adjustment device includes a moving plate arranged on the frame and a first driving device for driving the moving plate to move, and the pressing wheel device is fixed on the moving plate; The film cutting device comprises a cutter arranged on a frame and a second driving device for driving the cutter to move; The signal output end of the handheld scanning gun is connected to the signal input end of the control device, and the signal output end of the control device is connected to the signal input end of the first driving device and the signal input end of the second driving device.

2. The automatic door cover covering machine according to claim 1 is characterized in that: The glue coating device comprises a glue gun for containing glue and a glue control device for adjusting the length of the inner cavity of the glue gun, and a glue outlet nozzle is fixedly provided on the glue gun; The glue control device includes a blocking rod slidably arranged in the glue gun, a third driving device for driving the blocking rod to move, and a blocking piece fixed to the blocking rod. The shape of the blocking rod matches the inner cavity of the glue gun. The blocking piece is located in the glue outlet nozzle and its shape matches the inner cavity of the glue outlet nozzle.

3. The automatic door cover covering machine according to claim 2 is characterized in that: The first driving device includes a first motor screw guide device, a movable plate is fixed on the first nut of the first motor screw guide device, at least two first screws are provided, both are arranged on the frame, one end of each first screw is connected to a gear box, and two adjacent gear boxes are connected by a force transmission rod, and one of the gear boxes is fixedly connected to the first motor.

4. The automatic door cover covering machine according to any one of claims 1 to 3, characterized in that: The second driving device comprises a second motor lead screw guide rail device, and the cutter is fixed on a second nut of the second motor lead screw guide rail device.

5. The automatic door cover covering machine according to claim 2 is characterized in that: The third driving device includes a third motor screw guide device, the blocking rod is fixed on the third nut of the third motor screw guide device, and the blocking rod passes through the end of the glue gun and extends into the glue gun.

6. The automatic door cover covering machine according to claim 5 is characterized in that: A fine-tuning rod is slidably provided at the other end of the glue gun, the fine-tuning rod passes through the glue gun and extends into the glue gun, a fine-tuning plate is fixedly provided on the fine-tuning rod, the shape of the fine-tuning rod matches the shape of the inner cavity of the glue gun, the fine-tuning plate is located in the glue outlet nozzle, and its shape matches the inner cavity of the glue outlet nozzle, a handwheel rod is threadedly connected to the fine-tuning rod, the handwheel rod is rotatably connected to the frame, a handwheel is fixedly provided at one end of the handwheel rod, a scale is fixedly provided on the frame, and a pointer is fixedly provided on the fine-tuning rod.

7. The automatic door cover covering machine according to any one of claims 1-3, 5 and 6, characterized in that: The frame is fixedly provided with a film guide plate for receiving the cut covering film.

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