Automatic glue spraying line for leather case embryo

Abstract

The application discloses a ground rail type automatic glue spraying line for leather box embryos and relates to the technical field of leather box production equipment.The ground rail type automatic glue spraying line comprises a ground rail assembly, a feeding assembly, a dust removal assembly, a glue spraying assembly, a material conveying belt and a feeding and discharging assembly.The ground rail assembly and the feeding assembly are arranged, the ground rail assembly and the feeding assembly are matched, the conveying of the leather box embryos can be realized, the dust removal assembly and the glue spraying assembly are arranged above the ground rail assembly, the dust removal assembly can clean dust on the surface of the leather box embryos, the glue spraying effect is guaranteed, the glue spraying assembly can spray glue on the inner and outer surfaces of the leather box, the overall glue spraying of the box embryos can be realized, the material conveying belt and the feeding and discharging assembly are arranged, the material conveying belt and the feeding and discharging assembly are matched, the feeding and discharging of the box embryos can be realized, and the feeding and discharging of the box embryos can be synchronously performed, so that the glue spraying efficiency of the box embryos is improved.

Description

Technical Field

[0001] This invention relates to the field of leather box production equipment technology, and in particular to a ground-rail type automatic glue spraying line for leather box blanks. Background Technology

[0002] Leather box packaging is largely handcrafted using PU leather and stitching, with its exquisite design and decoration serving to promote and beautify the product, enhancing its competitiveness. Because the shape and structure of leather boxes are often determined by the shape and characteristics of the packaged product, there are many styles and types, including rectangular, square, polygonal, irregularly shaped, and cylindrical boxes. However, the manufacturing process is basically the same: material selection – dimension design – template making – glue bonding – sewing – assembly into a box.

[0003] During the production of leather boxes, the box blanks need to be sprayed with adhesive to bond the decorative leather. Since the box blanks require multi-sided adhesive spraying, current technology involves spraying adhesive separately on the inner and outer surfaces of the box blanks, and this process is mostly done manually. Manual adhesive spraying is inefficient and makes mass production of leather boxes difficult. Therefore, it is necessary to invent a floor-mounted automatic adhesive spraying line for leather box blanks to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a ground-rail type automatic glue spraying line for leather box blanks, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a floor-rail type automatic glue spraying line for leather box blanks, comprising a floor rail assembly, a feeding assembly, a dust removal assembly, a glue spraying assembly, a material conveyor belt, and a loading and unloading assembly. Multiple feeding assemblies are arranged above the floor rail assembly, and a dust removal assembly and a glue spraying assembly are arranged above the floor rail assembly. A material conveyor belt is arranged on one side of the floor rail assembly, and a loading and unloading assembly is arranged in the middle of the side of the floor rail assembly and the material conveyor belt that are close to each other.

[0006] The ground rail assembly includes a track, which is configured as a "U" shaped structure, and extension plates are fixedly connected to the top of the inner walls on both sides of the track;

[0007] The feeding assembly includes a feeding plate located above the track, and an extension frame is fixedly connected to the lower surface of the feeding plate.

[0008] The dust removal assembly includes a dust collection box located above the track, and the loading and unloading assembly includes a gantry located above the track and the material conveyor belt.

[0009] Preferably, a plurality of support sprockets are provided on one inner wall of the track at equal intervals, a transmission chain is provided on the outer side of the support sprockets, and a drive motor is fixedly connected to the middle of the inner side of the track. The drive motor is connected to the transmission chain through a gear set.

[0010] Preferably, positioning frames are fixedly connected to both sides of the lower surface of the feeding plate, and two sets of symmetrically distributed positioning wheels are provided on the outer side of the positioning frames. The two sets of positioning wheels are located on both sides of the extension plate, and a transmission sprocket is fixedly connected to one side of the upper surface of the extension frame. The transmission sprocket meshes with the transmission chain.

[0011] Preferably, a drive shaft is movably connected to the middle of the feeding plate via a bearing, a movable frame is fixedly connected to the top of the drive shaft, a worm gear is fixedly connected to the bottom of the drive shaft, a worm is provided at the bottom of the feeding plate, the worm meshes with the worm gear, a rotary motor is provided at the bottom of the feeding plate, and the output shaft of the rotary motor is fixedly connected to one end of the worm.

[0012] Preferably, a strip-shaped groove is provided through the middle of both sides of the movable frame, and two symmetrically distributed slide rods are inserted into the inside of the strip-shaped groove. A lead screw sleeve is fixedly connected to the middle of the slide rod. A bidirectional lead screw is provided inside the movable frame, and both ends of the bidirectional lead screw are movably connected to the inner wall of the movable frame through bearings.

[0013] Preferably, a lifting motor is fixedly connected to the middle of the outer side of the movable frame. The output shaft of the lifting motor is fixedly connected to one end of a bidirectional lead screw. The bidirectional lead screw is connected to a lead screw sleeve. Both ends of the slide rod are movably connected to support arms via pins. The top of the support arms is movably connected to a feeding frame via pins. Positioning blocks are fixedly connected to the four corners of the upper surface of the feeding frame. Limiting grooves are provided at the connection between the feeding frame and the positioning blocks. The positioning blocks are slidably connected to the limiting grooves. A push motor is provided at the intersection of the two limiting grooves. The push motor is provided with four push rods, which are respectively connected to the four positioning blocks.

[0014] Preferably, fixed seats are fixedly connected to the four corners of the inner walls on both sides of the dust collector. A movable arm is movably connected to the outer side of the fixed seat via a pin. A movable roller is movably connected to one end of the movable arm via a pin. Multiple dust-collecting strips are arranged at equal intervals on the outer side of the movable roller. Support arms are movably connected to both ends of the movable roller via pins. An electromagnetic sliding sleeve is movably connected to one end of the support arm via a pin. A fixed rod is connected through the inside of the electromagnetic sliding sleeve. A spring is arranged between two adjacent electromagnetic sliding sleeves. Both ends of the fixed rod are fixedly connected to the inner wall of the dust collector. A dust collection mechanism is embedded in the center of the top of the dust collector.

[0015] Preferably, the glue spraying assembly includes a glue spraying box, with partitions fixedly connected to the bottom of the inner walls on both sides of the glue spraying box. The partitions are configured in a "F" shape, and a pushing component is provided on the partitions. The pushing component is connected to the positioning columns. Two symmetrically distributed positioning columns are fixedly connected to the upper surface of the partitions, and multiple movable frames are provided between the two positioning columns. A support base is fixedly connected to the middle of the upper surface of the movable frame, and an automatic spray gun is movably connected to the support base through connecting bolts.

[0016] Preferably, a drain pipe is embedded at the bottom of the outer wall of the glue spraying box, a filter box is fixedly connected to one end of the drain pipe, a cover plate is fixedly connected to the top of the filter box by bolts, and a drain outlet is provided at one end of the filter box.

[0017] Preferably, two symmetrically distributed material racks are provided above the gantry. One end of each material rack is movably connected to the top of the gantry via a horizontal slide. Guide plates are fixedly connected to the four corners of the lower surface of each material rack. A guide groove is formed through the middle of each guide plate. A movable plate is provided on the inner side of each guide plate. Guide sliders adapted to the guide grooves are fixedly connected to the four corners of each movable plate. Two symmetrically distributed grippers are provided on the lower surface of the movable plate. The tops of the grippers are movably connected to the lower surface of the movable plate via a clamping slide. A telescopic cylinder is fixedly connected to the upper surface of the movable plate. The top of the telescopic cylinder is fixedly connected to the inner wall of the top of the material rack.

[0018] The technical effects and advantages of this invention are as follows:

[0019] 1. This invention, by setting up a ground rail assembly and a feeding assembly, can realize the conveying of the box blanks by working together. A dust removal assembly and a glue spraying assembly are set above the ground rail assembly. The dust removal assembly can clean the dust on the surface of the box blanks to ensure the glue spraying effect. The glue spraying assembly can spray glue on both the inner and outer sides of the box, thereby realizing the full glue spraying of the box blanks. By setting up a material conveyor belt and a loading and unloading assembly, the loading and unloading of the box blanks can be realized by working together, and the loading and unloading of the box blanks can be carried out simultaneously, thereby improving the glue spraying efficiency of the box blanks.

[0020] 2. By setting up a dust removal component, the multiple movable rollers inside the dust removal component can rotate with the box blank as it moves with the feeding component. Dust removal strips are set on the outside of the movable rollers. As the dust removal strips rotate with the movable rollers, they can sweep off the dust on the surface of the box blank. The swept-off dust can be collected and processed by the dust collection net, thereby achieving the treatment of dust on the surface of the box blank and ensuring the glue spraying effect of the box blank.

[0021] 3. This invention incorporates a glue spraying assembly with multiple sets of automatic spray guns. These guns can spray glue onto the inside, outside, and bottom of the box blank. The box blank is positioned above a feeding assembly, which can lift and rotate the box blank to improve spraying efficiency. The assembly also includes a partition, allowing any glue splashed during spraying to flow along the partition into a water tank at the bottom of the assembly for cleaning. A drain pipe is located on one side of the water tank, with a filter box at one end. This filter box adsorbs and filters the glue components in the water, further improving glue cleaning. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the ground rail assembly structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the feeding assembly structure of the present invention;

[0025] Figure 4 This is a side view of the feeding assembly structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the dust removal component structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the movable roller structure of the present invention;

[0028] Figure 7 This is a schematic diagram showing the positional relationship between the glue spraying assembly and the feeding assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the movable frame structure of the present invention;

[0030] Figure 9 This is a side view of the adhesive spray box structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the loading and unloading assembly structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the material rack structure of the present invention.

[0033] In the diagram: 1. Ground rail assembly; 101. Rail; 102. Extension plate; 103. Drive chain; 2. Feeding assembly; 201. Feeding plate; 202. Extension frame; 203. Positioning frame; 204. Positioning wheel; 205. Drive sprocket; 206. Drive shaft; 207. Movable frame; 208. Worm gear; 209. Worm; 210. Strip groove; 211. Slide rod; 212. Lead screw sleeve; 213. Double-acting lead screw; 214. Lifting motor; 215. Support arm; 216. Unloading rack; 217. Positioning block; 3. Dust removal assembly; 301. Dust removal box; 302. Fixed base; 303. Movable arm; 304. Movable roller; 305. Support arm; 306. Electromagnetic sliding sleeve; 307. Fixed rod; 308. Dust removal mechanism; 4. Glue spraying assembly; 401. Glue spraying box; 402. Partition plate; 403. Positioning column; 404. Movable frame; 405. Support base; 406. Automatic spray gun; 407. Drain pipe; 408. Filter box; 409. Cover plate; 5. Material conveyor belt; 6. Loading and unloading assembly; 601. Gantry; 602. Material rack; 603. Horizontal slide table; 604. Guide plate; 605. Guide groove; 606. Movable plate; 607. Gripper; 608. Clamping slide table; 609. Telescopic cylinder. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0035] Example 1

[0036] This invention provides, for example Figures 1 to 11 The automatic glue spraying line for a leather box blank shown includes a ground rail assembly 1, a feeding assembly 2, a dust removal assembly 3, a glue spraying assembly 4, a material conveyor belt 5, and a loading and unloading assembly 6. Multiple feeding assemblies 2 are arranged above the ground rail assembly 1. The dust removal assembly 3 and the glue spraying assembly 4 are arranged above the ground rail assembly 1. The material conveyor belt 5 is arranged on one side of the ground rail assembly 1. The loading and unloading assembly 6 is arranged in the middle of the side of the ground rail assembly 1 and the material conveyor belt 5 that are close to each other.

[0037] The ground rail assembly 1 includes a track 101, which is configured as a "U" shape. Extension plates 102 are fixedly connected to the top of the inner walls on both sides of the track 101. Multiple support sprockets are provided on one inner wall of the track 101 at equal intervals. A transmission chain 103 is provided on the outer side of the support sprockets. A drive motor is fixedly connected to the middle of the inner side of the track 101. The drive motor is connected to the transmission chain 103 through a gear set. The drive motor drives the transmission chain 103 to move through the gear set. The transmission chain 103 and the transmission sprocket 205 are meshed. The transmission sprocket 205 is a fixed structure and cannot rotate. Therefore, the transmission chain 103 can drive the transmission sprocket 205 to move, thereby driving the feeding assembly 2 to move, so that the feeding assembly 2 slides above the ground rail assembly 1.

[0038] The feeding assembly 2 includes a feeding plate 201, which is located above the track 101. An extension frame 202 is fixedly connected to the lower surface of the feeding plate 201. Positioning frames 203 are fixedly connected to both sides of the lower surface of the feeding plate 201. Two sets of symmetrically distributed positioning wheels 204 are provided on the outer side of the positioning frames 203. The two sets of positioning wheels 204 are located on both sides of the extension plate 102. A transmission sprocket 205 is fixedly connected to one side of the upper surface of the extension frame 202. The transmission sprocket 205 meshes with the transmission chain 103.

[0039] Specifically, a drive shaft 206 is movably connected to the middle of the feeding plate 201 via a bearing. A movable frame 207 is fixedly connected to the top of the drive shaft 206, and a worm gear 208 is fixedly connected to the bottom of the drive shaft 206. A worm 209 is provided at the bottom of the feeding plate 201, and the worm 209 meshes with the worm gear 208. A rotary motor is provided at the bottom of the feeding plate 201, and the output shaft of the rotary motor is fixedly connected to one end of the worm 209. The rotary motor drives the worm 209 to rotate, and the worm 209 can drive the worm gear 208 to rotate, thereby driving the movable frame 207 to rotate, and then driving the box blank to rotate. Moreover, there is a self-locking effect between the worm 209 and the worm gear 208, so the position of the box blank can be fixed after it stops rotating.

[0040] More specifically, a strip groove 210 is provided through the middle of both sides of the movable frame 207. Two symmetrically distributed slide rods 211 are inserted into the inside of the strip groove 210. A lead screw sleeve 212 is fixedly connected to the middle of the slide rod 211. A double lead screw 213 is provided inside the movable frame 207. Both ends of the double lead screw 213 are movably connected to the inner wall of the movable frame 207 through bearings. A lifting motor 214 is fixedly connected to the middle of the outer side of the movable frame 207. The output shaft of the lifting motor 214 is fixedly connected to one end of the double lead screw 213. The double lead screw 213 is connected through the lead screw sleeve 212. Both ends of the slide rod 211 are movably connected to the support arm 215 through pins. The top of the support arm 215 is movably connected to the feeding rack 216 through pins.

[0041] Furthermore, positioning blocks 217 are fixedly connected to the four corners of the upper surface of the feeding rack 216. The lifting motor 214 can drive the bidirectional lead screw 213 to rotate. The bidirectional lead screw 213 cooperates with the lead screw sleeve 212, causing the two slide rods 211 to move relative to each other. The slide rods 211 drive the support arm 215 to move, causing the top of the support arm 215 to drive the feeding rack 216 to move, thereby realizing the lifting and lowering of the box blank.

[0042] The dust removal assembly 3 includes a dust removal box 301, which is located above the track 101. Fixed seats 302 are fixedly connected to the four corners of the inner walls on both sides of the dust removal box 301. A movable arm 303 is movably connected to the outer side of the fixed seat 302 via a pin. A movable roller 304 is movably connected to one end of the movable arm 303 via a pin. Multiple dust removal cloth strips with equal spacing are provided on the outer side of the movable roller 304.

[0043] Specifically, when the box blank passes through the dust removal component 3, two sets of movable rollers 304 are squeezed on both sides of the box blank. The movable rollers 304 act on the support arm 305, causing the support arm 305 to drive the electromagnetic sliding sleeve 306 to move. A spring is provided between the two electromagnetic sliding sleeves 306. The spring acts on the electromagnetic sliding sleeves 306, causing the electromagnetic sliding sleeves 306 to be subjected to a force that moves away from each other. This, in turn, causes the movable rollers 304 to be subjected to a force in the direction of the box blank. As the box blank moves with the feeding component 2, the box blank acts on the movable rollers 304 during the movement, causing the movable rollers 304 to rotate. The movable rollers 304 can drive the dust removal cloth strip to rotate. During the rotation, the dust removal cloth strip can sweep off the dust on the surface of the box blank, thereby achieving the purpose of cleaning the surface of the box blank.

[0044] More specifically, the upper end of the movable roller 304 is movably connected to a support arm 305 via a pin, one end of the support arm 305 is movably connected to an electromagnetic sliding sleeve 306 via a pin, a fixed rod 307 is connected through the interior of the electromagnetic sliding sleeve 306, a spring is provided between two adjacent electromagnetic sliding sleeves 306, both ends of the fixed rod 307 are fixedly connected to the inner wall of the dust collection box 301, a dust collection mechanism 308 is embedded in the middle of the top of the dust collection box 301, the dust collection mechanism 308 includes a connecting ring, a dust collection net is provided above the connecting ring, the dust collection net is a top-sealed cylindrical structure, the cross-section of the dust collection net is a ring-shaped wavy structure, and an annular plate is fixedly connected to the bottom end of the dust collection net.

[0045] The dust removal mechanism 308 also includes an exhaust fan, which can draw air upward from inside the dust collection box 301. The air can carry the dust upward, and when the air and dust pass through the dust collection screen, the dust collection screen can separate and collect the dust, thereby achieving the cleaning and collection of dust on the surface of the box blank.

[0046] The glue spraying assembly 4 includes a glue spraying tank 401. The glue spraying tank 401 is located outside the track 101. Sealing door curtains are provided at both ends of the glue spraying tank 401. The setting of the sealing door curtains can isolate the glue spraying tank 401 from the external environment. At the bottom ends of the inner side walls on both sides of the glue spraying tank 401, partition plates 402 are fixedly connected. The partition plates 402 are arranged in an "L" - shaped structure. On the upper surface of the partition plates 402, two symmetrically distributed positioning columns 403 are fixedly connected. Between the two positioning columns 403, a plurality of movable frames 404 are provided. At both ends of the movable frame 404, movable sleeves are embedded. The positioning columns 403 are inserted and connected with the movable sleeves. A locking bolt is inserted and connected into a screw hole opened in the middle of the outer side surface of the movable sleeve. One end of the locking bolt is in contact with the outer side wall of the positioning column 403.

[0047] Specifically, a support seat 405 is fixedly connected to the middle of the upper surface of the movable frame 404. The support seat 405 is movably connected with an automatic spray gun 406 through a connecting bolt. The automatic spray gun 406 is set in three groups. The three groups of automatic spray guns 406 can respectively perform glue spraying treatment on the inner side surface, outer side surface and lower surface of the box blank.

[0048] Moreover, a drain pipe 407 is embedded at the bottom end of the outer side wall of the glue spraying tank 401. One end of the drain pipe 407 is fixedly connected with a filter box 408. The top end of the filter box 408 is fixedly connected with a cover plate 409 through a bolt. A drain port is provided at one end of the filter box 408. During the glue spraying process of the box blank, the excess glue can slide down along the partition plate 402 to the bottom of the glue spraying tank 401. Before the glue spraying tank 401 starts to work, the automatic spray gun 406 will spray clean water. While cleaning the inside of the glue spraying tank 401, it ensures that a certain amount of water can be stored at the bottom of the glue spraying tank 401. The excess glue can flow into the water at the bottom of the glue spraying tank 401, so as to realize the collection and treatment of the glue.

[0049] The loading and unloading assembly 6 includes a gantry 601. The gantry 601 is located above the track 101 and the material conveyor belt ⑤. Above the gantry 601, two symmetrically distributed material racks 602 are provided. One end of the material rack 602 is movably connected with the top end of the gantry 601 through a horizontal slide 603. At the four corners of the lower surface of the material rack 602, guide plates 604 are fixedly connected. A guide groove 605 is formed through the middle of the guide plate 604. Inside the guide plate 604, a movable plate 606 is provided. At the four corners of the movable plate 606, guide sliders adapted to the guide groove 605 are fixedly connected.

[0050] Specifically, the lower surface of the movable plate 606 is provided with two symmetrically distributed grippers 607. The top of the grippers 607 is movably connected to the lower surface of the movable plate 606 via a clamping slide 608. The upper surface of the movable plate 606 is fixedly connected to a telescopic cylinder 609. The top of the telescopic cylinder 609 is fixedly connected to the inner wall of the top of the material rack 602. The telescopic cylinder 609 drives the movable plate 606 to move downward, and the movable plate 606 drives the grippers 607 to move downward until the two grippers 607 move to the two sides of the box blank respectively. At this time, the clamping slide 608 drives the grippers 607 to move horizontally, so that the two grippers 607 clamp the box blank. Then the telescopic cylinder 609 drives the movable plate 606 to move upward, and the box blank moves upward with the grippers 607. At this time, the loading and unloading of the box blank can be realized.

[0051] Working principle of this invention:

[0052] When this device is in use, the box blank to be sprayed with glue moves with the material conveyor belt 5 to the bottom of the loading and unloading assembly 6. The loading and unloading assembly 6 clamps the box blank and moves it above the feeding assembly 2. The feeding assembly 2 moves above the ground rail assembly 1. The feeding assembly 2 drives the box blank to pass through the dust removal assembly 3 and the glue spraying assembly 4 in sequence and then moves to the bottom of the loading and unloading assembly 6 again. The loading and unloading assembly 6 clamps the glue-sprayed box blank and moves it onto the material conveyor belt 5. The glue-sprayed box blank is moved to the unloading area with the material conveyor belt 5, thus realizing the glue spraying treatment of the box blank.

[0053] When the loading and unloading assembly 6 clamps and moves the material, the telescopic cylinder 609 drives the movable plate 606 to move downward, and the movable plate 606 drives the gripper 607 to move downward until the two grippers 607 move to the two sides of the box blank. At this time, the clamping slide 608 drives the gripper 607 to move horizontally, so that the two grippers 607 clamp the box blank. Then the telescopic cylinder 609 drives the movable plate 606 to move upward. At this time, the box blank moves upward with the gripper 607 and the box blank separates from the material conveyor belt 5. At this time, the horizontal slide 603 drives the material rack 602 to slide horizontally, thereby driving the box blank to slide horizontally until the box blank moves to the top of the feeding assembly 2. At this time, the telescopic cylinder 609 drives the movable plate 606 to move downward, and at the same time, the two clamping slides 608 drive the gripper 607 to slide horizontally. The box blank is placed on the top of the feeding assembly 2.

[0054] When the feeding assembly 2 moves above the ground rail assembly 1, the drive motor drives the transmission chain 103 to move through the gear set. The transmission chain 103 meshes with the transmission sprocket 205, which is a fixed structure that cannot rotate. Therefore, the transmission chain 103 can drive the transmission sprocket 205 to move, thereby driving the feeding assembly 2 to move, so that the feeding assembly 2 slides above the ground rail assembly 1.

[0055] When the box blank passes through the dust removal component 3, two sets of movable rollers 304 are squeezed on both sides of the box blank. The movable rollers 304 act on the support arm 305, causing the support arm 305 to drive the electromagnetic sliding sleeve 306 to move. A spring is provided between the two electromagnetic sliding sleeves 306. The spring acts on the electromagnetic sliding sleeves 306, causing the electromagnetic sliding sleeves 306 to be subjected to a force that moves away from each other. This, in turn, causes the movable rollers 304 to be subjected to a force in the direction of the box blank. As the box blank moves with the feeding component 2, the box blank acts on the movable rollers 304 during the movement, causing the movable rollers 304 to rotate. The movable rollers 304 can drive the dust removal cloth strip to rotate. During the rotation, the dust removal cloth strip can sweep off the dust on the surface of the box blank, thereby achieving the purpose of cleaning the surface of the box blank. At the same time, an exhaust fan is provided at the top of the dust removal box 301. The exhaust fan can draw the air inside the dust removal box 301 upward. The air can carry the dust upward. When the air and dust pass through the dust collection net, the dust collection net can separate and collect the dust, thereby achieving the cleaning and collection of dust on the surface of the box blank.

[0056] After the box preform enters the glue spraying assembly 4, the feeding assembly 2 drives the box preform to rotate, and the box preform moves upward during the rotation. When the box preform is located at the lower end of the glue spraying box 401, the two sets of automatic spray guns 406 located in the middle of the glue spraying box 401 work to spray glue on the outer surface of the box preform. As the box preform moves upward, the automatic spray guns 406 located at the lower part of the glue spraying box 401 work. Since the lower automatic spray guns 406 have an upward tilt angle, they can spray glue on the bottom of the box preform. When the box preform moves to the upper part of the glue spraying box 401, the two sets of automatic spray guns 406 located in the middle of the glue spraying box 401 work to spray glue on the outer surface of the box preform. The upper automatic spray gun 406 operates. Because the upper automatic spray gun 406 has a downward tilt angle, it can spray glue onto the inner side of the box blank. During the glue spraying process, excess glue can slide down the partition 402 to the bottom of the glue spraying tank 401. Before starting work, the automatic spray gun 406 sprays out clean water into the glue spraying tank 401. This cleans the inside of the glue spraying tank 401 while ensuring that the bottom of the glue spraying tank 401 can store a certain amount of water. Excess glue can flow into the water at the bottom of the glue spraying tank 401, thus achieving glue collection and treatment.

[0057] When the feeding assembly 2 drives the box blank to rise and rotate, the rotary motor drives the worm 209 to rotate, and the worm 209 can drive the worm wheel 208 to rotate, thereby driving the movable frame 207 to rotate, and then driving the box blank to rotate. There is a self-locking effect between the worm 209 and the worm wheel 208, so the position of the box blank can be fixed after it stops rotating. The lifting motor 214 can drive the bidirectional lead screw 213 to rotate, and the bidirectional lead screw 213 cooperates with the lead screw sleeve 212 to make the two slide rods 211 move relative to each other. The slide rods 211 drive the support arm 215 to move, so that the top of the support arm 215 drives the feeding rack 216 to move, thereby realizing the lifting and downward processing of the box blank.

[0058] Example 2

[0059] In actual use, operators found that when the feeding component 2 conveys the box blank to the glue spraying component 4 and performs glue spraying, the feeding component 2 will rotate and raise the box blank during the glue spraying process, causing the distance between the automatic spray gun 406 and the box blank to change during operation. This makes it impossible to guarantee the glue spraying effect of the automatic spray gun 406 on the box blank, and the device cannot effectively clamp box blanks of different sizes. Therefore, in order to solve the above technical problems, the device is improved according to the method described in this embodiment.

[0060] A limiting groove is provided at the connection between the feeding rack 216 and the positioning block 217. The positioning block 217 is slidably connected to the limiting groove, and a push motor is provided at the intersection of the two limiting grooves. The push motor is provided with four push rods and is connected to the four positioning blocks 217 respectively. A push assembly is provided on the partition plate 402, and the push assembly is connected to the positioning column 403.

[0061] First, when it is necessary to transfer box blanks of different sizes from the material conveyor belt 5 to the feeding assembly 2, the telescopic cylinder 609 is controlled to drive the movable plate 606 downward, and the movable plate 606 drives the gripper 607 downward until the two grippers 607 move to the two sides of the box blank respectively. The clamping slide 608 is then controlled to drive the gripper 607 horizontally, so that the two grippers 607 clamp the box blank. The length of the box blank is calculated based on the movement of the clamping slide 608, and the box blank is placed on the feeding rack 216. Simultaneously, the push motor is controlled to drive the push rod to retract, causing the positioning block 217 to slide towards the center along the limiting groove and contact the side of the box blank. The width of the box blank is calculated based on the retraction of the push rod. During this process, if the width of the box blank calculated by the retraction of the push rod is consistent with the length of the box blank calculated by the movement of the clamping slide 608, the rotary motor drives the worm gear 209 to rotate. The worm gear 209 will drive the worm wheel 208 to rotate, making it more aligned with the worm wheel 208. The movable frame 207 connected to 08 rotates synchronously. When the movable frame 207 rotates to 90 degrees, it stops rotating and moves the clamping slide 608 to move the gripper 607 towards the box blank and performs a second measurement of the box blank length. If the second measured length is consistent with the box blank width calculated by the push rod shrinkage, the box blank is determined to be a square box blank, and the length and width values ​​of the box blank are recorded. If the second measured length is inconsistent with the box blank width calculated by the push rod shrinkage, the box blank length obtained by the second measurement is recorded along with the box blank width calculated by the push rod shrinkage. This prevents the box blank width calculated by the push rod shrinkage and the box blank length calculated by the movement of the clamping slide 608 from being the same set of data, which would lead to incorrect calculation of the actual length and width of the box blank and damage to the box blank in subsequent processes. At the same time, the positioning block 217 prevents the box blank from detaching from the feeding component 2 during cleaning, which would prevent the box blank from completing subsequent processes.

[0062] It should be noted that each positioning block 217 and gripper 607 is equipped with a pressure sensor, and the pressure value detected by the pressure sensor is used to determine whether the box blank is clamped.

[0063] Secondly, when the measured box blank is moved into the dust removal assembly 3 by the feeding assembly 2 for dust removal, the two sets of electromagnetic sliding sleeves 306 located on both sides of the box blank generate magnetic repulsion, causing the electromagnetic sliding sleeves 306 to move towards the fixed base 302 and push the movable roller 304 towards the center of the box blank through the support arm 305. During this process, the displacement of the electromagnetic sliding sleeves 306 is determined by the calculated length and width values ​​of the box blank, causing the movable roller 304 to move to the inside of the box blank. The feeding assembly 2 raises the height of the box blank so that the inside of the box blank contacts the dust removal cloth strip set on the movable roller 304, and the dust removal is achieved through the transmission chain 10. 3. The feeding assembly 2 is moved to complete the cleaning of the inside of the blank box. When it is necessary to clean the outside of the blank box, the two electromagnetic sliding sleeves 306 are de-energized by controlling the spring. Under the action of the spring, the two electromagnetic sliding sleeves 306 will return to the initial position. During this process, the blank is controlled to move downward and separate from the movable roller 304, so that the movable roller 304 moves to the outside of the blank. The feeding assembly 2 drives the blank to rotate and rise. The blank contacts the movable roller 304 to clean the four sides of the outside of the blank, so that the four sides of the inside and the four sides of the outside of the blank are effectively cleaned, which facilitates the subsequent glue spraying treatment of the blank.

[0064] It should be noted that when cleaning the outside of the box blank, if the width of the box blank is less than the distance between the two sets of movable rollers 304, the electromagnetic sliding sleeve 306 is energized and generates magnetic repulsion between them, so that the movable rollers 304 contact the outside of the box blank and complete the cleaning.

[0065] Finally, when the box blank after dust removal is moved into the glue spraying assembly 4 by the feeding assembly 2 for glue spraying, the feeding assembly 2 raises the box blank to a position aligned with the automatic spray gun 406 located in the middle, and drives the box blank to rotate. At the same time, based on the measured length and width values ​​of the box blank, the drive component moves the positioning column 403 to slide on the partition 402, so that the rotating box blank always maintains the same distance from the automatic spray gun 406. This allows the automatic spray gun 406 to spray glue evenly around and inside the box blank. This effectively solves the problem that the feeding assembly 2 drives the box blank to rotate and rise during the glue spraying process, causing the distance between the automatic spray gun 406 and the box blank to change during operation, which cannot guarantee the glue spraying effect of the automatic spray gun 406 on the box blank.

[0066] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A floor-rail type automatic glue spraying line for leather box blanks, characterized in that, It includes a ground rail assembly, a feeding assembly, a dust removal assembly, a glue spraying assembly, a material conveyor belt, and a loading and unloading assembly. Multiple feeding assemblies are installed above the ground rail assembly, and dust removal and glue spraying assemblies are installed above the ground rail assembly. A material conveyor belt is installed on one side of the ground rail assembly, and a loading and unloading assembly is installed in the middle of the side where the ground rail assembly and the material conveyor belt are close to each other. The ground rail assembly includes a track, which is designed in a "U" shape, and extension plates are fixedly connected to the top of the inner walls on both sides of the track; The feeding assembly includes a feeding plate located above the track, and an extension frame is fixedly connected to the lower surface of the feeding plate. The dust collection assembly includes a dust collection box located above the track, and the loading and unloading assembly includes a gantry located above the track and the material conveyor belt. The inner wall of one side of the track is provided with multiple support sprockets that are evenly distributed. A transmission chain is provided on the outer side of the support sprockets. A drive motor is fixedly connected to the middle of the inner side of the track. The drive motor is connected to the transmission chain through a gear set. Positioning frames are fixedly connected to both sides of the lower surface of the feeding plate. Two sets of symmetrically distributed positioning wheels are provided on the outer side of the positioning frames. The two sets of positioning wheels are located on both sides of the extension plate. A transmission sprocket is fixedly connected to one side of the upper surface of the extension frame. The transmission sprocket meshes with the transmission chain. A drive shaft is movably connected to the middle of the feeding plate via a bearing. A movable frame is fixedly connected to the top of the drive shaft, and a worm wheel is fixedly connected to the bottom of the drive shaft. A worm is provided at the bottom of the feeding plate, and the worm meshes with the worm wheel. A rotary motor is provided at the bottom of the feeding plate, and the output shaft of the rotary motor is fixedly connected to one end of the worm. There is a self-locking effect between the worm and the worm wheel. The movable frame has a strip groove running through the middle of both sides. Two symmetrically distributed slide rods are inserted into the inside of the strip groove. A screw sleeve is fixedly connected to the middle of the slide rod. A two-way screw is installed inside the movable frame. Both ends of the two-way screw are movably connected to the inner wall of the movable frame through bearings. A lifting motor is fixedly connected to the middle of the outer side of the movable frame. The output shaft of the lifting motor is fixedly connected to one end of a double-acting lead screw. The double-acting lead screw is connected to the lead screw sleeve. The upper end of the slide bar is movably connected to a support arm through a pin. The top of the support arm is movably connected to a feeding rack through a pin. Positioning blocks are fixedly connected to the four corners of the upper surface of the feeding rack. Limiting grooves are opened at the connection between the feeding rack and the positioning blocks. The positioning blocks are slidably connected to the limiting grooves. A push motor is provided at the intersection of the two limiting grooves. The push motor is equipped with four push rods and is connected to the four positioning blocks respectively. Fixed seats are fixedly connected to the four corners of the inner walls on both sides of the dust collector. Movable arms are movably connected to the outer side of the fixed seats via pins. One end of the movable arm is movably connected to a movable roller via a pin. Multiple dust collection strips are arranged at equal intervals on the outer side of the movable roller. Support arms are movably connected to both ends of the movable roller via pins. Electromagnetic sleeves are movably connected to one end of the support arms via pins. A fixed rod is connected through the inside of the electromagnetic sleeve. A spring is installed between two adjacent electromagnetic sleeves. Both ends of the fixed rod are fixedly connected to the inner wall of the dust collector. A dust collection mechanism is embedded in the middle of the top of the dust collector. The dust collection mechanism includes a connecting ring, and a dust collection screen is installed above the connecting ring.

2. The automatic glue spraying line for a leather box blank according to claim 1, characterized in that: The glue spraying assembly includes a glue spraying tank. At the bottom ends of the inner walls on both sides of the glue spraying tank, partition plates are fixedly connected. The partition plates are arranged in a "factory" shape structure. A pushing component is provided on the partition plates. The pushing component is connected to the positioning columns. On the upper surface of the partition plates, two symmetrically distributed positioning columns are fixedly connected. Between the two positioning columns, a plurality of movable frames are arranged. In the middle of the upper surface of the movable frame, a support seat is fixedly connected. The support seat is movably connected with an automatic spray gun through a connecting bolt.

3. The automatic glue spraying line for a leather box blank according to claim 2, characterized in that: At the bottom end of the outer side wall of the glue spraying tank, a drain pipe is embedded. One end of the drain pipe is fixedly connected with a filter box. The top end of the filter box is fixedly connected with a cover plate through bolts. One end of the filter box is provided with a drain port.

4. The automatic glue spraying line for a leather box blank according to claim 3, characterized in that: Above the gantry, two symmetrically distributed material racks are arranged. One end of the material rack is movably connected with the top end of the gantry through a horizontal sliding table. At the four corners of the lower surface of the material rack, guide plates are fixedly connected. A guide groove is formed through the middle of the guide plate. Inside the guide plate, a movable plate is arranged. At the four corners of the movable plate, guide sliders adapted to the guide grooves are fixedly connected. On the lower surface of the movable plate, two symmetrically distributed clamping jaws are arranged. The top end of the clamping jaw is movably connected with the lower surface of the movable plate through a clamping sliding table. On the upper surface of the movable plate, a telescopic cylinder is fixedly connected. The top end of the telescopic cylinder is fixedly connected with the inner wall of the top end of the material rack.

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