Slab hot-pressing splicing device

Abstract

The utility model discloses a slab hot-pressing splicing device, and belongs to the technical field of veneer processing. The gluing device mainly comprises a hot pressing device, a gluing mechanism is arranged on the plate feeding side of the hot pressing device and comprises a glue box and a gluing telescopic mechanism, a gluing roller is arranged above the glue box, a strip-shaped glue brush matched with the glue box is fixedly connected to the gluing roller in the length direction, and the gluing roller is connected with the extending end of the gluing telescopic mechanism through a second bearing seat. The gluing roller is fixedly connected with a gluing gear, and the hot pressing device is fixedly connected with a gluing rack meshed with the gluing gear. According to the utility model, the direct hot-pressing splicing mode of the slabs is adopted to replace the original toothing mode, so that a tooth beating structure and a glue pool heat preservation mechanism are omitted, the production efficiency is greatly improved, meanwhile, the equipment structure is simpler and more convenient, and the slabs are spliced more firmly. The utility model is mainly used for slab hot-pressing splicing.

Description

Technical Field

[0001] The utility model belongs to the technical field of veneer processing, and more particularly, relates to a veneer hot pressing and splicing device. Background Art

[0002] Currently, the main method for connecting veneers is finger jointing. During processing, engaging teeth are first punched at the connecting parts at the head and tail ends of the connecting veneers, and then hot melt glue is applied to the tooth tops and bottoms. Through a mechanical method, the teeth of the front and rear veneers are made to fit into each other seamlessly, and then pressed and cooled to cure the glue, thus achieving the connection and lengthening of the front and rear veneers.

[0003] Chinese Patent with the authorization announcement number of "CN215702517U" discloses a veneer finger jointing machine and a veneer processing production line, including: a conveying device for conveying veneers, a tooth cutting device for cutting teeth at both ends of the veneer, a glue coating device for coating glue on the veneer, a pressing and cooling device for cooling and solidifying the glue, and a cutting device for cutting the veneer. The tooth cutting device, the glue coating device, the pressing and cooling device, and the cutting device are arranged in sequence along the conveying device, and the distance between the cutting device and the pressing and cooling device is half of the length of the veneer. When the pressing and cooling device presses the connection part of two veneers, the cutting device is exactly located at the middle position of a single veneer. When the pressing and cooling device cools the glue at the connection part of two veneers, the cutting device can simultaneously perform the cutting work, and pressing and cooling can be carried out simultaneously, with higher processing efficiency.

[0004] Although the above patent solves the problem of veneer splicing, it still has the following defects: 1. The tooth cutting tool has high requirements for materials, and the manufacturing process is complex and the manufacturing cost is high; 2. The hot melt glue used at the finger jointing part needs to be equipped with a heating system to melt the solid glue particles into a liquid state. Therefore, heat insulation and heat preservation are required for the glue pool, and an air conditioning circulation refrigeration system also needs to be equipped to cool and solidify the glue after finger jointing. The configuration requirements are high, further increasing the manufacturing cost. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a veneer hot pressing and splicing device, which uses the method of directly hot pressing and splicing veneers to replace the original finger jointing method, eliminating the tooth cutting structure and the glue pool heat preservation mechanism, greatly improving the production efficiency, and at the same time, the equipment structure is simpler and the veneer splicing is more firm.

[0006] The described veneer hot-pressing and splicing device includes a hot-pressing device. A gluing mechanism is provided on the board-feeding side of the hot-pressing device. The gluing mechanism includes a glue tank and a glue-applying telescopic mechanism. A glue-applying roller is provided above the glue tank. A strip-shaped glue brush that cooperates with the glue tank is fixedly connected along the length direction on the glue-applying roller. The glue-applying roller is connected to the extending end of the glue-applying telescopic mechanism through a bearing block II. A glue-applying gear is fixedly connected to the glue-applying roller, and a glue-applying rack that meshes with the glue-applying gear is fixedly connected to the hot-pressing device.

[0007] Preferably, guide plates are respectively provided on both sides of the glue tank. The glue tank and the guide plates are both fixedly connected to the hot-pressing device. Guide grooves are formed on the guide plates. Both ends of the glue-applying roller pass through the guide grooves. The glue-applying gear is installed on one side of the guide plate close to the glue-applying roller, and the bearing block II is installed on the other side. The glue-applying telescopic mechanism is fixedly installed on a fixed seat.

[0008] Preferably, the guide grooves are of a long-strip structure.

[0009] Preferably, a protective plate that cooperates with the strip-shaped glue brush is fixedly connected to one side of the glue tank. The upper end face of the protective plate does not exceed the upper end face of the hot-pressing lower die.

[0010] Preferably, the hot-pressing device includes a hot-pressing frame. A hot-pressing upper die and a hot-pressing lower die are arranged up and down on the hot-pressing frame. The hot-pressing lower die is fixedly connected to the hot-pressing frame. At least one hydraulic mechanism fixedly connected to the hot-pressing frame is provided above the hot-pressing upper die. The extending end of the hydraulic mechanism is fixedly connected to the hot-pressing upper die.

[0011] Preferably, a synchronization mechanism is further included. The synchronization mechanism includes a synchronization rotating shaft. Both ends of the synchronization rotating shaft are rotationally connected to the hot-pressing frame through bearing blocks I. At least two groups of synchronization gears are fixedly connected to the synchronization rotating shaft. A synchronization rack that meshes with the synchronization gears is fixedly connected to the hot-pressing upper die.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model adds a gluing mechanism. Through the liftable gluing mechanism, the automatic conveying of the veneer does not conflict with the gluing operation. After the gluing action is completed, the glue-applying roller and the strip-shaped glue brush drop down in time, making room for the forward movement of the veneer and preparing for the next gluing. It realizes automatic gluing and hot-pressing operations, without the need for manual participation, saves labor costs, and reduces the labor intensity of workers.

[0014] 2. A synchronization mechanism is added to the hot-pressing device. During the rising or falling process of the hot-pressing upper die, the hot-pressing upper die drives the synchronization rack to engage with the synchronization gears. The synchronization gears on both sides are fixed to the same synchronization rotating shaft, thereby preventing the phenomenon of asynchronous operation of multiple hydraulic cylinders and skewing of the hot-pressing upper die, and improving the reliability of the equipment.

[0015] 3. The utility model adopts the method of directly hot-pressing and splicing veneers to replace the original finger-jointing method, eliminating the toothing structure and the glue pool heat preservation mechanism, saving the equipment investment cost, greatly improving the production efficiency, and at the same time, the equipment structure is simpler and the veneer splicing is more firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is a schematic connection diagram of the hot-pressing device and the synchronization mechanism;

[0018] Figure 3 is Figure 2 a partial enlarged view of part A in

[0019] Figure 4 is a schematic structural diagram of the glue application mechanism.

[0020] In the figure, 1 is the hot-pressing device; 101 is the hot-pressing frame; 102 is the hydraulic mechanism; 103 is the hot-pressing upper die; 104 is the hot-pressing lower die; 2 is the synchronization mechanism; 201 is the synchronization rotating shaft; 202 is the synchronization rack; 203 is the synchronization gear; 204 is the first bearing seat; 3 is the glue application mechanism; 301 is the glue application rack; 302 is the glue application gear; 303 is the strip-shaped glue brush; 304 is the glue application roller; 305 is the glue tank; 306 is the guide plate; 307 is the guide groove; 308 is the second bearing seat; 309 is the glue application telescopic mechanism; 310 is the fixed seat; 311 is the protective plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further describes the utility model with reference to the accompanying drawings:

[0022] The orientation terms involved in the paragraphs of the detailed description are only for the convenience of those skilled in the art to understand the technical solutions recorded in this application according to the visual orientation shown in the accompanying drawings. Unless otherwise clearly specified and limited, the terms "set", "installed", "connected", etc. should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Such as Figures 1 to 4As shown in the figure, a veneer hot-pressing and splicing device includes a hot-pressing device 1. The hot-pressing device 1 includes a hot-pressing frame 101. A hot-pressing upper die 103 and a hot-pressing lower die 104 are arranged up and down on the hot-pressing frame 101. Heating rods are provided inside both the hot-pressing upper die 103 and the hot-pressing lower die 104. After the heating rods are powered on, they heat up, thereby heating the hot-pressing upper die 103 and the hot-pressing lower die 104. The hot-pressing lower die 104 is fixedly connected to the hot-pressing frame 101. At least one hydraulic mechanism 102 fixedly connected to the hot-pressing frame 101 is provided above the hot-pressing upper die 103. In this embodiment, preferably three hydraulic mechanisms 102 are provided, and the hydraulic mechanism 102 is a hydraulic cylinder. The extending end of the hydraulic mechanism 102 is fixedly connected to the hot-pressing upper die 103. By starting the hydraulic mechanism 102, the hot-pressing upper die 103 can be driven to move up and down. The hot-pressing upper die 103 cooperates with the hot-pressing lower die 104 to realize the pressurization and heating of the spliced veneer, so that the two veneers can be better spliced together.

[0024] A gluing mechanism 3 is provided on the feeding side of the hot-pressing device 1. As Figure 4 shown, the gluing mechanism 3 includes a glue tank 305 and two glue-applying telescopic mechanisms 309. During installation, the bottom of the glue tank 305 is fixedly connected to the hot-pressing frame 101 through a support seat. The glue-applying telescopic mechanism 309 is fixedly installed on a fixed seat 310. The fixed seat 310 is fixedly connected to the hot-pressing frame 101 or a transmission equipment support. A protective plate 311 for preventing glue from splashing out is provided on one side of the glue tank 305, and the uppermost end of the protective plate 311 does not exceed the upper end surface of the hot-pressing lower die 104. A glue-applying roller 304 is provided above the glue tank 305. A strip-shaped glue brush 303 that cooperates with the glue tank 305 is fixedly connected along the length direction on the glue-applying roller 304. The strip-shaped glue brush 303 is used to dip glue. The glue-applying roller 304 does not dip glue and only drives the strip-shaped glue brush 303 to rotate when rotating. The rotation direction of the strip-shaped glue brush 303 cooperates with the installation side of the protective plate 311. Both ends of the glue-applying roller 304 are respectively rotatably connected to bearing seats two 308. The bearing seats two 308 are rotatably connected to the extending ends of the glue-applying telescopic mechanisms 309 through fixed supports. Glue-applying gears 302 are respectively fixedly connected to the positions of the glue-applying roller 304 near both ends. A glue-applying rack 301 meshing with the glue-applying gears 302 is fixedly connected to the hot-pressing frame 101 of the hot-pressing device 1. The glue-applying gears 302 can drive the glue-applying roller 304 to rotate simultaneously when the glue-applying roller 304 rises by meshing with the glue-applying rack 301.

[0025] Guide plates 306 are respectively provided on both sides of the glue tank 305. During installation, the guide plates 306 are fixedly connected to the hot-pressing frame 101 through fixing plates. Long-strip-shaped guide grooves 307 are formed on the guide plates 306. The guide grooves 307 can limit the rising direction of the glue-applying roller 304 to prevent the glue-applying roller 304 from deflecting. Specifically, both ends of the glue-applying roller 304 pass through the guide grooves 307. The glue-applying gears 302 are installed on the side of the guide plate 306 close to the glue-applying roller 304, and the bearing seats two 308 are installed on the other side. AsFigure 2 and Figure 3 As shown in and

[0026] , it further includes a synchronization mechanism 2. The synchronization mechanism 2 includes a synchronization rotating shaft 201. Both ends of the synchronization rotating shaft 201 are respectively rotatably connected to a first bearing block 204. The first bearing block 204 is fixedly connected to the hot pressing frame 101. Two or more groups of synchronization gears 203 are fixedly connected to the synchronization rotating shaft 201. In this embodiment, there are two groups of synchronization gears 203, and the two groups of synchronization gears 203 are installed at positions close to both ends of the synchronization rotating shaft 201. A synchronization rack 202 meshing with the synchronization gears 203 is fixedly connected to the hot pressing upper die 103.

[0026] During the ascending or descending process of the hot pressing upper die 103, the hot pressing upper die 103 drives the synchronization rack 202 to mesh with the synchronization gears 203. The two sides of the synchronization gears 203 are fixed on the same synchronization rotating shaft 201, thereby preventing the asynchronous movement of multiple hydraulic cylinders and the skewing of the hot pressing upper die 103.

[0027] Those skilled in the art can use the existing technologies they master, such as installing corresponding mechanical limit switches or photoelectric sensors, to limit the specified positions of each executing component during the following action process; to achieve automated operation, the present utility model can adopt numerical control technology or PLC to control the actions of each executing component.

[0028] When the present utility model is in use, it is used in cooperation with an automatic conveying mechanism. The tail of the previous board is located on the hot pressing lower die 104 waiting for hot bonding. The next board is conveyed by the automatic conveying mechanism. When the next board is located above the glue box 30505, the front end of the next board starts to be coated with glue. At this time, the strip-shaped glue brush 303 extends into the glue box 305 to dip the glue on the strip-shaped glue brush 303. Then, the glue application telescopic mechanism 309 is started. The extending end of the glue application telescopic mechanism 309 drives the second bearing block 308 to rise. During this process, the glue application gear 302 meshes with the glue application rack 301. The glue application gear 302 drives the glue application roller 304 and the strip-shaped glue brush 303 to rotate until the strip-shaped glue brush 303 rises to touch the next board. As the glue application roller 304 rotates, the strip-shaped glue brush 303 applies the glue to the bottom of the front end of the next board. Then, the glue application telescopic mechanism 309 contracts. Through the liftable glue application mechanism 3, the automatic conveying of the board and the glue application operation do not conflict. After the glue brushing action is completed, the glue application roller 304 and the strip-shaped glue brush 303 drop in time to make room for the board to move forward and prepare for the next glue brushing.

[0029] The automatic conveying mechanism continues to convey the next sheet forward, so that the front end of the next sheet enters between the hot pressing upper die 103 and the hot pressing lower die 104, and the front end of the next sheet is located above the tail of the previous sheet. At this time, multiple hydraulic mechanisms 102 in the hot pressing device 1 are activated to drive the hot pressing upper die 103 to descend, pressurize and heat the two sheets. After high-pressure pressing, there is no obvious bulge at the joint of the two sheets. Then the automatic conveying mechanism is activated again to convey the sheet forward. After the joint of the sheet leaves the hot pressing device 1, it gradually cools and the glue solidifies, completing the automatic hot pressing splicing of the two sheets.

[0030] Finally, although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A panel hot pressing splicing device, comprising a hot pressing device (1), characterized in that: A glue coating mechanism (3) is provided on the plate inlet side of the hot pressing device (1), the glue coating mechanism (3) comprising a glue box (305) and a glue application telescopic mechanism (309), a glue coating roller (304) is provided above the glue box (305), a strip-shaped glue brush (303) matching with the glue box (305) is fixedly connected to the glue coating roller (304) along the length direction, the glue coating roller (304) is connected to the extended end of the glue application telescopic mechanism (309) via a second bearing seat (308), a glue coating gear (302) is fixedly connected to the glue coating roller (304), and a glue coating rack (301) meshing with the glue coating gear (302) is fixedly connected to the hot pressing device (1).

2. A panel hot pressing splicing device according to claim 1, characterized in that: Guide plates (306) are respectively provided on both sides of the glue box (305). The glue box (305) and the guide plates (306) are both fixedly connected to the hot pressing device (1). A guide groove (307) is provided on the guide plate (306). Both ends of the glue coating roller (304) pass through the guide groove (307). The glue coating gear (302) is installed on one side of the guide plate (306) close to the glue coating roller (304). The second bearing seat (308) is installed on the other side. The glue coating telescopic mechanism (309) is fixedly installed on the fixed seat (310).

3. A panel hot pressing splicing device according to claim 2, characterized in that: The guide groove (307) is a long strip structure.

4. The panel hot pressing splicing device according to claim 1, characterized in that: A protective plate (311) that matches the strip-shaped glue brush (303) is fixedly connected to one side of the glue box (305), and the upper end surface of the protective plate (311) does not exceed the upper end surface of the hot pressing lower mold (104).

5. A panel hot pressing splicing device according to any one of claims 1 to 4, characterized in that: The hot pressing device (1) comprises a hot pressing frame (101), on which an upper hot pressing die (103) and a lower hot pressing die (104) are arranged one above the other, the lower hot pressing die (104) being fixedly connected to the hot pressing frame (101), and above the upper hot pressing die (103) there is at least one hydraulic mechanism (102) fixedly connected to the hot pressing frame (101), the protruding end of the hydraulic mechanism (102) being fixedly connected to the upper hot pressing die (103).

6. A panel hot pressing splicing device according to claim 5, characterized in that: The invention also comprises a synchronization mechanism (2), the synchronization mechanism (2) comprising a synchronization shaft (201), the two ends of the synchronization shaft (201) being rotationally connected to the hot pressing frame (101) via a bearing seat 1 (204), at least two sets of synchronization gears (203) being fixedly connected to the synchronization shaft (201), and a synchronization rack (202) meshing with the synchronization gears (203) being fixedly connected to the hot pressing upper mold (103).

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