A pressing device for processing of formaldehyde-free plywood

Abstract

The utility model relates to multilayer board forming device technical field, concretely relates to a kind of pressing device for formaldehyde-free plywood processing, including lower mould and upper mould, still including pressure maintaining component;Pressure maintaining component includes connecting seat, rotating seat, threaded rod, threaded sleeve, abutment seat and driving member, when using, by rotating rotating seat, make rotating seat drive threaded rod and threaded sleeve rotate, make threaded sleeve be clamped into limiting slot;Then threaded rod is rotated by driving member drive, since threaded sleeve is connected with threaded rod and cannot rotate by limiting slot limit, threaded sleeve will move along threaded rod axial direction downward, drive abutment seat synchronous drop and closely abut upper mould top, with the continuous rotation of threaded rod, the pulling force of threaded sleeve to abutment seat gradually increases, until the pressure between upper mould and lower mould reaches the pressure maintaining value set by cold press, the purpose of convenient operation, improve processing efficiency is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-layer board forming devices, and in particular to a pressing device for processing formaldehyde-free plywood. Background Technology

[0002] In the process of processing formaldehyde-free plywood, multiple thin wood veneers need to be coated with glue and stacked together as required to form a preliminary multi-layer board. Then, the preliminary multi-layer board is put into a cold press for cold pressing, leveling and shaping. After cold pressing, the plywood needs to be kept under pressure. However, the cold press is difficult to keep under pressure for a long time, resulting in poor pressure holding effect.

[0003] Existing technology CN222290450U discloses a cold-pressing mold for multilayer boards, including a lower mold, an upper mold, and several pressure-holding pull rods. The lower mold has first opening slots spaced apart on both sides. A cold-pressing space for cold-pressing multilayer boards is provided between the upper and lower molds. The upper mold has second opening slots spaced apart on both sides. The lower end of each pressure-holding pull rod engages with a corresponding first opening slot, allowing it to pass through the first opening slot and be connected and fixed to the lower mold, or be removed from the first opening slot and separated from the lower mold. The upper end of each pressure-holding pull rod engages with a corresponding second opening slot, allowing it to pass through the second opening slot and be connected and fixed to the upper mold, or be removed from the second opening slot and separated from the upper mold. After cold-pressing the multilayer board, the multilayer board can be held under pressure for a long time, allowing it to fully solidify. This eliminates the need for setting a separate pressure-holding time on the cold press, improving its working efficiency.

[0004] The above-mentioned device can maintain pressure on plywood for a long time. However, when using it, the operator needs to combine multiple pressure-holding rods with the upper and lower molds, so that the pressure-holding rods are connected to the upper and lower molds respectively. This operation is time-consuming and laborious, reducing processing efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a pressing device for processing formaldehyde-free plywood, which solves the problem that when using an existing multi-layer board cold pressing mold, the operator needs to combine multiple pressure holding rods with the upper and lower molds, so that the pressure holding rods are connected to the upper and lower molds respectively. This operation is time-consuming and laborious, reducing processing efficiency.

[0006] To achieve the above objectives, this utility model provides a pressing device for processing formaldehyde-free plywood, including a lower mold and an upper mold. The upper mold is disposed above the lower mold, and a placement space is formed between the upper mold and the lower mold for placing plywood. It also includes a pressure-holding assembly. The pressure-holding assembly includes a connecting seat, a rotating seat, a threaded rod, a threaded sleeve, an abutment seat, and a driving component. The connecting seat is fixedly connected to the lower mold and disposed on the lower mold. The rotating seat is rotatably connected to the connecting seat and disposed on the connecting seat. The threaded rod is rotatably connected to the rotating seat and disposed on the rotating seat. The threaded sleeve is threadedly connected to the threaded rod and sleeved on the threaded rod. The abutment seat is fixedly connected to the threaded sleeve and located at the top end of the threaded rod. The upper mold has a limiting groove that mates with the threaded sleeve.

[0007] The driving component includes a worm gear, a worm, and a rotating rod. The worm gear is rotatably connected to the rotating seat and fixedly connected to the threaded rod, and is located inside the rotating seat. The rotating rod is rotatably connected to the rotating seat. The worm is fixedly connected to the rotating rod and meshes with the worm gear, and is sleeved on the rotating rod.

[0008] The driving component further includes a rotating handle, which is fixedly connected to the rotating rod and located at one end of the rotating rod.

[0009] The pressure-holding assembly further includes a locking member, which includes a locking seat and a spring. The spring is connected to the lower mold and located inside the lower mold. One end of the locking seat is connected to the spring, and the other end of the locking seat contacts the rotating seat. The rotating seat has a locking groove that engages with the locking seat.

[0010] The locking component further includes a button, which is fixedly connected to the locking seat, located on one side of the locking seat, and extends out of the lower mold.

[0011] This utility model discloses a pressing device for processing formaldehyde-free plywood. In use, the formaldehyde-free plywood after gluing is placed on the lower mold, and the upper mold is placed above it. A forklift is then used to transport the lower mold, upper mold, and formaldehyde-free plywood to the base of a cold press. The cold press then presses down the upper mold. When the upper mold reaches a set position, the cold press stops pressing. At this point, the rotating seat is rotated, causing the threaded rod and threaded sleeve to rotate, so that the threaded sleeve engages with the limiting groove. Then, the driving component drives the threaded rod to rotate. Because the threaded sleeve is threadedly connected to the threaded rod and restricted by the limiting groove, the threaded rod rotates without... As the threaded rod rotates, the threaded sleeve moves downward along the axial direction of the threaded rod, causing the abutment seat to descend synchronously and tightly abut against the top of the upper die. As the threaded rod continues to rotate, the tension of the threaded sleeve on the abutment seat gradually increases until the pressure between the upper die and the lower die reaches the holding pressure value set by the cold press. Finally, the device and the multi-layer plywood are removed from the cold press, and the cold press can then be used for the next batch of processing. By rotating the rotating seat, the threaded rod, the threaded sleeve, the upper die, and the lower die can be combined. At the same time, the driving component can drive multiple threaded rods to rotate simultaneously, achieving convenient operation and improving processing efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the pressing device for processing formaldehyde-free plywood according to the first embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the installation structure of the threaded sleeve according to the first embodiment of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the driving component in the first embodiment of this utility model.

[0016] Figure 4 This is a structural schematic diagram of the locking component according to the second embodiment of the present invention.

[0017] In the diagram: 101-lower mold, 102-upper mold, 103-fork insert, 104-pressure holding assembly, 105-connecting seat, 106-rotating seat, 107-threaded rod, 108-threaded sleeve, 109-abutment seat, 110-drive component, 111-worm gear, 112-worm, 113-rotating rod, 114-rotating handle, 115-limiting groove, 201-locking component, 202-locking seat, 203-spring, 204-button, 205-locking groove. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] First embodiment:

[0020] Please see Figures 1 to 3 ,in Figure 1 This is a schematic diagram of the overall structure of a pressing device used in the processing of formaldehyde-free plywood. Figure 2 This is a schematic diagram of the installation structure of the threaded sleeve. Figure 3 This is a structural schematic diagram of the driving component.

[0021] This utility model provides a pressing device for processing formaldehyde-free plywood, including a lower mold 101, an upper mold 102, and a pressure holding assembly 104. The pressure holding assembly 104 includes a connecting seat 105, a rotating seat 106, a threaded rod 107, a threaded sleeve 108, an abutment seat 109, and a driving component 110. The driving component 110 includes a worm gear 111, a worm 112, a rotating rod 113, and a rotating handle 114. By rotating the rotating seat 106, the threaded rod 107 and the threaded sleeve 108 are driven to rotate, so that multiple threaded rods 107 and multiple threaded sleeves 108 can be combined with the upper mold 102 and the lower mold 101. At the same time, the driving component 110 drives multiple threaded rods 107 to rotate simultaneously, so as to facilitate the pressure holding operation of the operator and improve the processing efficiency. It can be understood that the above solution can be used to improve the processing efficiency of formaldehyde-free plywood.

[0022] In this specific embodiment, the upper mold 102 is disposed above the lower mold 101, and a placement space is formed between the upper mold 102 and the lower mold 101 for placing plywood. The lower mold 101 is provided with a fork insertion port 103 to facilitate the insertion of forklift forks, thereby moving the device.

[0023] The connecting seat 105 is fixedly connected to the lower mold 101 and is disposed on the lower mold 101. The rotating seat 106 is rotatably connected to the connecting seat 105 and is disposed on the connecting seat 105. The threaded rod 107 is rotatably connected to the rotating seat 106 and is disposed on the rotating seat 106. The threaded sleeve 108 is threadedly connected to the threaded rod 107 and is sleeved on the threaded rod 107. The abutment seat 109 is fixedly connected to the threaded sleeve 108 and is located on the threaded rod. At the top of 107, the upper mold 102 has a limiting groove 115 that mates with the threaded sleeve 108; two pressure-holding components 104 are provided and are located on both sides of the lower mold 101 respectively. Each pressure-holding component 104 is provided with multiple threaded rods 107, multiple threaded sleeves 108 and multiple abutment seats 109. The threaded sleeves 108 are rectangular and the limiting groove 115 is also rectangular. The driving member 110 can drive the multiple threaded rods 107 on the rotating seat 106 to rotate synchronously.

[0024] In use, the formaldehyde-free plywood after gluing is placed on the lower mold 101, and the upper mold 102 is placed above the formaldehyde-free plywood. A forklift is then used to move the lower mold 101, the upper mold 102, and the formaldehyde-free plywood onto the base of the cold press. The cold press then presses down the upper mold 102. When the upper mold 102 reaches the set position, the cold press stops pressing down. At this point, the rotating seat 106 is rotated, causing the rotating seat 106 to drive the threaded rod 107 and the threaded sleeve 108 to rotate, causing the threaded sleeve 108 to engage with the limiting groove 115. Then, the driving component 110 drives the threaded rod 107 to rotate. Because the threaded sleeve 108 is threadedly connected to the threaded rod 107 and is restricted by the limiting groove 115, it cannot rotate. 08 will move downward along the axial direction of the threaded rod 107, causing the abutment seat 109 to descend synchronously and tightly abut against the top of the upper mold 102. As the threaded rod 107 continues to rotate, the tension of the threaded sleeve 108 on the abutment seat 109 gradually increases until the pressure between the upper mold 102 and the lower mold 101 reaches the holding pressure value set by the cold press. Finally, the device and the multi-layer plywood are removed from the cold press, and the cold press can then be used for the next batch of processing. By rotating the rotating seat 106, the threaded rod 107, the threaded sleeve 108, the upper mold 102, and the lower mold 101 can be combined. At the same time, the driving component 110 can drive multiple threaded rods 107 to rotate simultaneously, achieving the purpose of convenient operation and improved processing efficiency.

[0025] Secondly, the worm gear 111 is rotatably connected to the rotating seat 106 and fixedly connected to the threaded rod 107, and is located inside the rotating seat 106; the rotating rod 113 is rotatably connected to the rotating seat 106; the worm 112 is fixedly connected to the rotating rod 113 and meshes with the worm gear 111, and is sleeved on the rotating rod 113; a plurality of worm gears 111 and a plurality of worm rods 112 are provided inside one rotating seat 106, and the plurality of worm gears 111 are respectively fixedly connected to a plurality of threaded rods 107, and the worm gears 111 are rotated by rotating the rotating rod 113. The worm gears 112 are driven to rotate, which in turn drive the worm wheels 111 to rotate. The worm wheels 111 drive the threaded rod 107 to rotate, thereby achieving the purpose of driving the multiple threaded rods 107 to rotate. At the same time, through the meshing transmission characteristics of the worm wheels 111 and the worm gears 112, reverse self-locking can be achieved. That is, the worm gears 112 can drive the worm wheels 111 to rotate, but the worm wheels 111 cannot drive the worm gears 112 to reverse, ensuring that the threaded rod 107 will not loosen due to external forces during the pressure holding process, thus ensuring pressure stability.

[0026] Meanwhile, the rotating handle 114 is fixedly connected to the rotating rod 113 and is located at one end of the rotating rod 113; the rotating handle 114 facilitates the operator to rotate the rotating rod 113.

[0027] Second embodiment:

[0028] Based on the first embodiment, please refer to Figure 4 , Figure 4 This is a structural schematic diagram of the locking member in the second embodiment. The pressure holding component 104 in this embodiment also includes a locking member 201, which includes a locking seat 202, a spring 203, and a button 204.

[0029] In this specific embodiment, the spring 203 is connected to the lower mold 101 and located inside the lower mold 101; one end of the locking seat 202 is connected to the spring 203, and the other end of the locking seat 202 contacts the rotating seat 106; the rotating seat 106 has a locking groove 205, which cooperates with the locking seat 202; when the rotating seat 106 rotates until the threaded sleeve 108 is engaged in the limiting groove 115, under the elastic force of the spring 203, the locking seat 202 extends into the locking groove 205, thereby fixing the rotating seat 106 and the lower mold 101 relatively, preventing the rotating seat 106 from rotating unexpectedly due to vibration or other external forces during the pressure holding process, ensuring that the threaded sleeve 108 is always stably engaged in the limiting groove 115, and further ensuring the pressure holding effect of the pressure holding assembly 104.

[0030] The button 204 is fixedly connected to the locking seat 202 and is located on one side of the locking seat 202, extending out of the lower mold 101. If it is necessary to remove the plywood after pressure holding, the worker only needs to press the button 204. The button 204 drives the locking seat 202 to disengage from the locking groove 205, and the rotating seat 106 can rotate freely.

[0031] When using the pressing device for processing formaldehyde-free plywood according to this invention, the plywood to be pressed is placed on the lower mold 101, and the upper mold 102 is placed above the plywood, aligned with the lower mold 101. A forklift is then used to move the lower mold 101, the upper mold 102, and the formaldehyde-free plywood to the base of the cold press. The cold press then presses down the upper mold 102. When the upper mold 102 reaches the set position, the cold press stops pressing down. Then, the rotating seat 106 is rotated, causing the threaded rod 107 to rotate to a vertical position. The threaded sleeve 108 extends into the limiting groove 115; by rotating the rotating handle 114, the rotating rod 113 and the worm gear 112 are driven to rotate, so that the worm wheel 111 drives the threaded rod 107 to rotate. Since the threaded sleeve 108 is restricted by the limiting groove 115 and cannot rotate, the threaded sleeve 108 will move downward along the axial direction of the threaded rod 107, driving the abutment seat 109 to descend synchronously, thereby causing the abutment seat 109 to press against the upper mold 102, thereby maintaining pressure on the plywood between the lower mold 101 and the upper mold 102, and achieving the purpose of improving processing efficiency.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A pressing device for processing formaldehyde-free plywood, comprising a lower mold and an upper mold, wherein the upper mold is disposed above the lower mold, and a placement space is formed between the upper mold and the lower mold for placing plywood, characterized in that, It also includes pressure holding components; The pressure-holding assembly includes a connecting seat, a rotating seat, a threaded rod, a threaded sleeve, an abutment seat, and a driving component. The connecting seat is fixedly connected to the lower mold and is disposed on the lower mold. The rotating seat is rotatably connected to the connecting seat and is disposed on the connecting seat. The threaded rod is rotatably connected to the rotating seat and is disposed on the rotating seat. The threaded sleeve is threadedly connected to the threaded rod and is sleeved on the threaded rod. The abutment seat is fixedly connected to the threaded sleeve and is located at the top end of the threaded rod. The upper mold has a limiting groove that mates with the threaded sleeve.

2. The pressing device for processing formaldehyde-free plywood as described in claim 1, characterized in that, The driving component includes a worm gear, a worm, and a rotating rod. The worm gear is rotatably connected to the rotating seat and fixedly connected to the threaded rod, and is located inside the rotating seat. The rotating rod is rotatably connected to the rotating seat. The worm is fixedly connected to the rotating rod and meshes with the worm gear, and is sleeved on the rotating rod.

3. The pressing device for processing formaldehyde-free plywood as described in claim 2, characterized in that, The driving component also includes a rotating handle, which is fixedly connected to the rotating rod and located at one end of the rotating rod.

4. The pressing device for processing formaldehyde-free plywood as described in claim 1, characterized in that, The pressure-holding assembly further includes a locking member, which includes a locking seat and a spring. The spring is connected to the lower mold and located inside the lower mold. One end of the locking seat is connected to the spring, and the other end of the locking seat contacts the rotating seat. The rotating seat has a locking groove that engages with the locking seat.

5. The pressing device for processing formaldehyde-free plywood as described in claim 4, characterized in that, The locking component also includes a button, which is fixedly connected to the locking seat, located on one side of the locking seat, and extends out of the lower mold.

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