A hot press for plywood production

Abstract

The utility model relates to plywood production equipment technical field, concretely is plywood production's hot press, the utility model discloses, including workbench, the upper surface fixedly connected with two supports of workbench, two the surface mounting of support has hot press head, the inner wall of workbench is equipped with clamping device, the clamping device includes two -way threaded rod, two -way threaded rod and the inner wall rotation connection of workbench, one end fixedly connected with the circular shaft of two -way threaded rod, the circular surface screw thread connection of two -way threaded rod has two sliding blocks. Solveed the pressure that hot press plate exerted to plywood when traditional hot press was carrying out hot pressing, and it was extremely easy to cause plywood to shift, and once plywood shifted, the pressure and temperature that each part suffered in the hot pressing process could not be evenly distributed, would cause plywood to appear uneven thickness, surface uneven, interlayer bonding strength deficiency etc. Quality defects, cause product quality to be difficult to reach the problem of industry standard and use demand.

Description

Technical Field

[0001] This utility model relates to the technical field of plywood production equipment, and in particular to a hot press for plywood production. Background Technology

[0002] Plywood is a sheet material made of three or more layers of sheet material, consisting of rotary-cut logs into veneers or sliced ​​timber into thin sheets, which are then glued together with adhesives. It typically uses an odd number of veneer layers, with the grain direction of adjacent veneers perpendicular to each other. In the plywood production process, the hot press is a crucial piece of equipment. By applying pressure and heat, it fully cures the adhesive between the layers, thus ensuring the strength and quality of the plywood.

[0003] Chinese patent application CN202123127445.0 discloses a hot press for plywood production. The key technical points are: The quick-installation mechanism of the base and the fan cooling mechanism facilitate rapid installation, enabling quick positioning, simpler installation, and excellent positioning effect. It also facilitates better heat dissipation from the plywood, allowing for angle adjustment to enhance heat dissipation. The hot press box is installed in a designated position. One end of the hot press box adjusts the position of the first mounting rod via a first adjustment mechanism, and the other end adjusts the position of the second mounting rod via a second adjustment mechanism. The first and second mounting rods are then engaged in the designated position for quick installation. After installation, the positioning base and forming... The forming seat is located directly below the hot press plate, which can overlap with the forming groove and is positioned using locating pins. The bottom of the hot press box is driven by a lifting cylinder to move up and down, causing the hot press plate to move up and down. The hot press plate performs hot pressing and forming operations on the plywood. After forming, the hot press plate retracts into its position, and the fan frame is turned on. The fan base and fan rapidly cool the plywood inside the forming groove. The cooling factor increases the cooling rate, and the air guide plate facilitates airflow direction control, improving heat dissipation and cooling performance, resulting in higher work efficiency. The rotating frame can adjust the angle of the fan frame for better air cooling. It is simple and practical. The entire hot press for plywood production has a simple structure, is easy to operate, and performs better than traditional methods.

[0004] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: When traditional hot presses are used to hot press plywood, the pressure applied by the hot press plate can easily cause the plywood to shift. Once the plywood shifts, the pressure and temperature on each part during the hot pressing process cannot be evenly distributed, resulting in quality defects such as uneven thickness, uneven surface, and insufficient interlayer bonding strength, making it difficult for the product quality to meet industry standards and usage requirements. Therefore, a hot press for plywood production is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where, during the hot pressing of plywood using traditional hot presses, the pressure applied by the hot press plate easily causes the plywood to shift. Once the plywood shifts, the pressure and temperature on different parts during the hot pressing process cannot be evenly distributed, resulting in quality defects such as uneven thickness, uneven surface, and insufficient interlayer bonding strength. Consequently, the product quality fails to meet industry standards and usage requirements. Therefore, this invention proposes a hot press for plywood production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a hot press for plywood production, comprising a worktable, two supports fixedly connected to the upper surface of the worktable, hot press heads mounted on the surfaces of the two supports, a clamping device provided on the inner wall of the worktable, the clamping device comprising a bidirectional threaded rod, the bidirectional threaded rod being rotatably connected to the inner wall of the worktable, a round shaft fixedly connected to one end of the bidirectional threaded rod, two sliders threadedly connected to the arc surface of the bidirectional threaded rod, a connecting block fixedly connected to the arc surface of each of the two sliders, two arc-shaped holes opened on the upper surface of the worktable, the connecting block being slidably connected to the inner wall of the arc-shaped holes, a clamping plate fixedly connected to the upper surface of the connecting block, and the clamping plate being slidably connected to the upper surface of the worktable.

[0007] The effect achieved by the above components is as follows: by setting up a clamping device and using the threaded connection structure between the bidirectional threaded rod and the slider, rotating the round shaft can drive the slider to move the connecting block, thereby allowing the clamping plate to slide smoothly along the arc-shaped hole on the worktable surface. The position of the clamping plate can be easily adjusted according to the width of the plywood, firmly clamping the plywood and effectively avoiding problems such as displacement or offset of the plywood during hot pressing. This significantly improves the stability and precision of the plywood hot pressing process and effectively ensures the quality of hot pressing.

[0008] Preferably, each of the two clamping plates is fixedly connected to a heat insulation pad on the side closest to each other, and the heat insulation pad is made of silicone rubber.

[0009] The effect achieved by the above components is that the good heat insulation performance of silicone rubber can effectively block the heat from the hot press head from being transferred to the clamping plate, preventing the clamping plate from being damaged due to overheating deformation.

[0010] Preferably, a telescopic cover is fixedly connected to the inner wall of the arc-shaped hole, and the side of the telescopic cover away from the inner wall of the arc-shaped hole is fixedly connected to the connecting block.

[0011] The effect achieved by the above components is that when the connecting block slides in the arc-shaped hole, the telescopic cover can extend and retract synchronously with the connecting block, effectively preventing sawdust, glue and other debris generated during the operation of the hot press from entering the arc-shaped hole, and avoiding the accumulation of debris that affects the smooth sliding of the connecting block.

[0012] Preferably, the circular arc surface of the circular shaft is provided with a plurality of strip grooves, and the plurality of strip grooves are arranged in a circumferential array.

[0013] The effect achieved by the above components is that the groove can increase the friction and roughness of the circular arc surface of the shaft. When the operator rotates the shaft to adjust the position of the clamping plate, the hand forms a more stable contact with the groove, making it less prone to slipping, thereby achieving more precise and labor-saving operation.

[0014] Preferably, a plurality of ball bearings are fixedly connected to the lower surface of the clamping plate, and the ball bearings are slidably connected to the upper surface of the worktable.

[0015] The effect achieved by the above components is to reduce the friction when the clamp moves, so that the clamp can slide more smoothly and flexibly during the adjustment of position, and reduce the wear between the clamp and the worktable surface.

[0016] Preferably, the upper surface of the workbench is provided with a cleaning device, the cleaning device including an arc-shaped frame, the arc-shaped frame being fixedly connected to the upper surface of the workbench, a motor being fixedly connected to the inner wall of the arc-shaped frame, a lead screw being fixedly connected to the output end of the motor, an arc-shaped block being fixedly connected to the upper surface of the workbench, the lead screw being rotatably connected to the surface of the arc-shaped block, an arc-shaped plate being fixedly connected to the upper surface of the workbench, a fixing block being fixedly connected to the upper surface of the workbench, a fixing rod being fixedly connected to the side of the arc-shaped plate and the fixing block that are close to each other, a first ring block being threadedly connected to the arc surface of the lead screw, a second ring block being slidably connected to the arc surface of the fixing rod, a connecting plate being fixedly connected to the arc surfaces of the first ring block and the second ring block, a sliding hole being opened on the surface of the connecting plate, a scraper being slidably connected to the inner wall of the sliding hole of the connecting plate, and the lower surface of the scraper being slidably connected to the workbench.

[0017] The effect achieved by the above components is as follows: by setting up a cleaning device, the motor drives the lead screw to rotate, causing the first ring block to move along the lead screw, while the second ring block slides on the fixed rod, driving the connecting plate to move. The connecting plate drives the scraper to perform reciprocating scraping motion on the worktable surface, which can automatically and efficiently scrape away residual wood chips, glue stains and other debris on the worktable surface, preventing debris from affecting the positioning accuracy and hot pressing effect of the plywood, and also reducing the wear of debris on the worktable and clamping device.

[0018] Preferably, a screw is threaded into the connecting plate, and one end of the screw abuts against the scraper.

[0019] The effect achieved by the above components is that when the scraper needs maintenance or replacement due to wear and tear from long-term use, the scraper can be easily disassembled for maintenance or replacement by loosening the screw.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] 1. In this utility model, by setting up a clamping device and utilizing the threaded connection structure between the bidirectional threaded rod and the slider, rotating the round shaft can drive the slider to move the connecting block, thereby allowing the clamping plate to slide smoothly along the arc-shaped hole on the worktable surface. This allows for convenient adjustment of the clamping plate position according to the width of the plywood, firmly clamping the plywood and effectively avoiding problems such as displacement or offset of the plywood during hot pressing. This significantly improves the stability and precision of the plywood hot pressing process and effectively ensures the quality of hot pressing.

[0022] 2. In this utility model, by setting up a cleaning device, the motor drives the lead screw to rotate, causing the first ring block to move along the lead screw. At the same time, the second ring block slides on the fixed rod, driving the connecting plate to move. The connecting plate drives the scraper to perform reciprocating scraping motion on the worktable surface, which can automatically and efficiently scrape away residual sawdust, glue stains and other debris on the worktable surface, avoiding the debris from affecting the positioning accuracy and hot pressing effect of the plywood, and also reducing the wear of debris on the worktable and clamping device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the clamping device in this utility model;

[0025] Figure 3 This is a schematic diagram of the connecting block in this utility model;

[0026] Figure 4 This is a schematic diagram of the cleaning device in this utility model;

[0027] Figure 5 This is a schematic diagram of the arc-shaped frame in this utility model;

[0028] Figure 6 This is a schematic diagram of the scraper structure in this utility model.

[0029] Legend: 1. Workbench; 2. Support; 3. Clamping device; 301. Bidirectional threaded rod; 302. Round shaft; 303. Slider; 304. Connecting block; 305. Arc-shaped hole; 306. Clamping plate; 307. Heat insulation pad; 308. Telescopic cover; 309. Strip groove; 310. Ball bearing; 4. Cleaning device; 401. Arc-shaped frame; 402. Motor; 403. Lead screw; 404. Arc-shaped block; 405. Arc-shaped plate; 406. Fixing rod; 407. First ring block; 408. Second ring block; 409. Connecting plate; 410. Scraper; 411. Screw; 412. Fixing block; 5. Hot press head. Detailed Implementation

[0030] Reference Figures 1-6 As shown, this utility model provides a technical solution: a hot press for plywood production, including a worktable 1. Two supports 2 are fixedly connected to the upper surface of the worktable 1, and hot press heads 5 are installed on the surfaces of the two supports 2. A clamping device 3 is provided on the inner wall of the worktable 1. By setting the clamping device 3 and using the threaded connection structure between the bidirectional threaded rod 301 and the slider 303, rotating the round shaft 302 can drive the slider 303 to move the connecting block 304, thereby allowing the clamping plate 306 to slide smoothly along the arc-shaped hole 305 on the surface of the worktable 1. The position of the clamping plate 306 can be easily adjusted according to the width of the plywood, firmly clamping the plywood and effectively preventing displacement of the plywood during the hot pressing process. To address issues such as offset, this system significantly improves the stability and precision of plywood hot pressing, effectively ensuring hot pressing quality. The upper surface of the worktable 1 is equipped with a cleaning device 4. This device, through a motor 402, drives a lead screw 403 to rotate, causing the first ring block 407 to move along the lead screw 403. Simultaneously, the second ring block 408 slides on a fixed rod 406, moving the connecting plate 409. The connecting plate 409 then drives a scraper 410 to reciprocate across the surface of the worktable 1, automatically and efficiently removing residual sawdust, glue residue, and other debris from the worktable 1 surface. This prevents debris from affecting the plywood's positioning accuracy and hot pressing effect, and also reduces wear on the worktable 1 and clamping device 3.

[0031] The specific setup and function of the clamping device 3 and the cleaning device 4 will be explained below.

[0032] Reference Figure 2 and Figure 3As shown, in this embodiment: the clamping device 3 includes a bidirectional threaded rod 301, which is rotatably connected to the inner wall of the worktable 1. One end of the bidirectional threaded rod 301 is fixedly connected to a round shaft 302. Two sliders 303 are threadedly connected to the arc surface of the bidirectional threaded rod 301. Connecting blocks 304 are fixedly connected to the arc surfaces of the two sliders 303. Two arc-shaped holes 305 are opened on the upper surface of the worktable 1. The connecting blocks 304 are slidably connected to the inner walls of the arc-shaped holes 305. A clamping plate 306 is fixedly connected to the upper surface of 04. The clamping plate 306 is slidably connected to the upper surface of the workbench 1. Heat insulation pads 307 are fixedly connected to the sides of the two clamping plates 306 that are close to each other. The heat insulation pads 307 are made of silicone rubber. The good heat insulation performance of silicone rubber can effectively block the heat from the hot press head 5 from being transferred to the clamping plate 306, preventing the clamping plate 306 from being damaged due to overheating deformation. A telescopic cover 308 is fixedly connected to the inner wall of the arc-shaped hole 305. The side of the telescopic cover 308 away from the inner wall of the arc-shaped hole 305 is connected to the... The connecting block 304 is fixedly connected. When the connecting block 304 slides within the arc-shaped hole 305, the telescopic cover 308 can extend and retract synchronously with the connecting block 304, effectively preventing sawdust, glue, and other debris generated during the operation of the hot press from entering the arc-shaped hole 305, thus avoiding the accumulation of debris that affects the smooth sliding of the connecting block 304. The arc surface of the round shaft 302 is provided with several strip grooves 309, which are arranged in a circumferential array. The strip grooves 309 can increase the friction and roughness of the arc surface of the round shaft 302. When the operator rotates the circular shaft 302 to adjust the position of the clamping plate, the hand forms a more stable contact with the strip groove 309, making it less prone to slippage, thus achieving more precise and labor-saving operation. Several balls 310 are fixedly connected to the lower surface of the clamping plate 306. The balls 310 are slidably connected to the upper surface of the worktable 1, reducing the friction when the clamping plate 306 moves, allowing the clamping plate 306 to slide more smoothly and flexibly during the position adjustment process, and reducing the wear between the clamping plate 306 and the surface of the worktable 1.

[0033] Reference Figure 4 , Figure 5 and Figure 6As shown, specifically, the cleaning device 4 includes an arc-shaped frame 401, which is fixedly connected to the upper surface of the workbench 1. A motor 402 is fixedly connected to the inner wall of the arc-shaped frame 401, and a lead screw 403 is fixedly connected to the output end of the motor 402. An arc-shaped block 404 is fixedly connected to the upper surface of the workbench 1, and the lead screw 403 is rotatably connected to the surface of the arc-shaped block 404. An arc-shaped plate 405 is fixedly connected to the upper surface of the workbench 1, and a fixing block 412 is fixedly connected to the upper surface of the workbench 1. A fixing rod 406 is fixedly connected to the side of the arc-shaped plate 405 and the fixing block 412 that are close to each other. The arc surface of the lead screw 403 is threaded with... The first ring block 407 and the fixed rod 406 are slidably connected to the arc surface of the second ring block 408. The arc surfaces of the first ring block 407 and the second ring block 408 are fixedly connected to the connecting plate 409. The surface of the connecting plate 409 is provided with a sliding hole. The inner wall of the sliding hole of the connecting plate 409 is slidably connected to the scraper 410. The lower surface of the scraper 410 is slidably connected to the worktable 1. The connecting plate 409 is threaded with a screw 411. One end of the screw 411 abuts against the scraper 410. When the scraper 410 needs to be maintained or replaced due to wear after long-term use, the scraper 410 can be easily disassembled for maintenance or replacement by loosening the screw 411.

[0034] Working principle: When it is necessary to fix the plywood on the workbench 1, the operator can rotate the round shaft 302 to drive the bidirectional threaded rod 301 to rotate. The threaded transmission causes the two sliders 303 to move towards each other on the bidirectional threaded rod 301. The sliders 303 drive the clamping plate 306 to slide along the surface of the workbench 1 through the connecting block 304, so as to achieve precise positioning and firm clamping of plywood of different sizes. The silicone rubber heat insulation pad 307 blocks the heat of the hot press head 5 and prevents the clamping plate 306 from overheating and deforming. The telescopic cover 308 slides and extends with the connecting block 304, blocking the entry of debris into the arc hole 305 and ensuring the smooth sliding of the connecting block 304. The strip groove 309 on the round shaft 302 increases the friction and helps the operator to operate accurately and effortlessly. The ball bearings 310 on the lower surface of the clamping plate 306 convert sliding friction into rolling friction, reduce movement resistance, reduce wear, and ensure the stable and efficient operation of the clamping device 3.

[0035] When cleaning the surface of the workbench 1 is required, the motor 402 is started. The output end of the motor 402 drives the lead screw 403 to rotate. Since the lead screw 403 is threadedly connected to the first ring block 407, the first ring block 407 will move linearly along the lead screw 403 as it rotates. At the same time, the second ring block 408 slides on the fixed rod 406. The first ring block 407 and the second ring block 408 together drive the connecting plate 409 to move. The scraper 410 on the connecting plate 409 is slidably connected to the sliding hole. Driven by the connecting plate 409, the scraper 410 slides back and forth on the surface of the workbench 1, thereby removing debris from the surface of the workbench 1. When the scraper 410 wears out due to long-term use and needs maintenance or replacement, the screw 411 that abuts against the scraper 410 can be loosened to easily remove the scraper 410 for maintenance or replacement, ensuring that the cleaning device 4 continues to work efficiently.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A hot press for plywood production, comprising a worktable (1), characterized in that: Two supports (2) are fixedly connected to the upper surface of the workbench (1). Hot press heads (5) are installed on the surfaces of the two supports (2). A clamping device (3) is provided on the inner wall of the workbench (1). The clamping device (3) includes a bidirectional threaded rod (301). The bidirectional threaded rod (301) is rotatably connected to the inner wall of the workbench (1). A round shaft (302) is fixedly connected to one end of the bidirectional threaded rod (301). Two sliders (303) are threadedly connected to the arc surface of the bidirectional threaded rod (301). A connecting block (304) is fixedly connected to the arc surface of each of the two sliders (303). Two arc-shaped holes (305) are opened on the upper surface of the workbench (1). The connecting block (304) is slidably connected to the inner wall of the arc-shaped hole (305). A clamping plate (306) is fixedly connected to the upper surface of the connecting block (304). The clamping plate (306) is slidably connected to the upper surface of the workbench (1).

2. The hot press for plywood production according to claim 1, characterized in that: Each of the two clamping plates (306) is fixedly connected to a heat insulation pad (307) on the side closest to each other. The heat insulation pad (307) is made of silicone rubber.

3. A hot press for plywood production according to claim 1, characterized in that: The inner wall of the arc-shaped hole (305) is fixedly connected to a telescopic cover (308), and the side of the telescopic cover (308) away from the inner wall of the arc-shaped hole (305) is fixedly connected to the connecting block (304).

4. A hot press for plywood production according to claim 1, characterized in that: The circular shaft (302) has a plurality of strip grooves (309) on its arc surface, and the plurality of strip grooves (309) are arranged in a circumferential array.

5. A hot press for plywood production according to claim 1, characterized in that: The lower surface of the clamp (306) is fixedly connected with a number of balls (310), and the balls (310) are slidably connected to the upper surface of the worktable (1).

6. A hot press for plywood production according to claim 1, characterized in that: The upper surface of the workbench (1) is provided with a cleaning device (4). The cleaning device (4) includes an arc-shaped frame (401), which is fixedly connected to the upper surface of the workbench (1). A motor (402) is fixedly connected to the inner wall of the arc-shaped frame (401). A lead screw (403) is fixedly connected to the output end of the motor (402). An arc-shaped block (404) is fixedly connected to the upper surface of the workbench (1). The lead screw (403) is rotatably connected to the surface of the arc-shaped block (404). An arc-shaped plate (405) is fixedly connected to the upper surface of the workbench (1). A fixing block is fixedly connected to the upper surface of the workbench (1). (412) A fixing rod (406) is fixedly connected to the side of the arc plate (405) and the fixing block (412) that are close to each other. A first ring block (407) is threadedly connected to the arc surface of the screw (403). A second ring block (408) is slidably connected to the arc surface of the fixing rod (406). A connecting plate (409) is fixedly connected to the arc surfaces of the first ring block (407) and the second ring block (408). A sliding hole is opened on the surface of the connecting plate (409). A scraper (410) is slidably connected to the inner wall of the sliding hole of the connecting plate (409). The lower surface of the scraper (410) is slidably connected to the worktable (1).

7. A hot press for plywood production according to claim 6, characterized in that: The connecting plate (409) is threaded with a screw (411), one end of which abuts against the scraper (410).

Images