A drying box for eliminating internal stress of plates

Abstract

The present invention discloses a drying box for eliminating internal stress of a board in the technical field of board drying, comprising a box body, wherein the box body is used to install a drying actuator; a hot air system, which is arranged at one side of the box body and is used to convey hot air into the box body; an exhaust system, which is arranged in the box body and opposite to the hot air system and is used to discharge the humid air in the box body; and a supporting mechanism, which is arranged in the box body and located between the hot air system and the exhaust system and is used to place wooden boards and can automatically adjust the distance between the wooden boards. The supporting mechanism can make the wooden boards stacked together intermittently and resist the deformation of the wooden boards caused by uneven heating in a squeezing manner. The present invention can prevent the wooden boards from being completely and deformed.

Description

Technical Field

[0001] The invention relates to the technical field of plate drying, in particular to a drying box for eliminating internal stress of plates. Background Art

[0002] Wood is also susceptible to internal stress during processing, causing deformation or cracking. The heat treatment of the drying box can help the wood release stress, stabilize the shape, and improve the durability and beauty of the wood.

[0003] Before drying, the wooden boards need to be soaked in advance to make the moisture in the wood evenly distributed, and then the wooden boards are stacked and separated by pads. Since the wooden boards need further treatment after soaking, they will not be placed in the drying box for drying immediately. During the placement process, the internal moisture of the wooden boards will flow downward under the action of gravity, and the moisture on the upper layer of the wooden boards will evaporate to a certain extent, which causes the internal moisture of the wooden boards to be in a state of less moisture on the upper layer and more moisture on the lower layer, and this unbalanced state will increase with the increase of placement time, which makes it easy for one side of the wooden board to evaporate faster and the other side to evaporate slower during the drying process, which will increase the possibility of the wooden board being completely cracked.

[0004] Based on this, the present invention designs a drying box for eliminating internal stress of plates to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a drying box for eliminating internal stress of plates to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drying box for eliminating stress in a board, comprising: a box body, the box body is used to install a drying actuator; a hot air system, which is arranged on one side of the box body and is used to convey hot air into the box body; an exhaust system, which is arranged in the box body and is arranged opposite to the hot air system, and is used to discharge the humid air in the box body; it also includes a supporting mechanism, which is arranged in the box body and located between the hot air system and the exhaust system, and is used to place wooden boards and can automatically adjust the distance between the wooden boards, and the supporting mechanism can make the wooden boards stacked together intermittently, and resist the deformation of the wooden boards caused by uneven heating in a squeezing manner; the supporting mechanism includes two support rods slidably installed in the box body, and the two support rods are symmetrically arranged; the support rods A number of equally spaced plywoods are slidably installed in the vertical direction, the height of the plywoods being greater than the thickness of the wooden boards, and two adjacent wooden boards can be stacked together with their top and bottom surfaces fitting together; a support plate is slidably installed in the horizontal direction at the bottom of the plywood, one end of the support plate extends to the outside of the plywood, and the cross-section after the support plate and the plywood are combined is "L"-shaped, and the wooden boards are placed at the angle; a return spring for its return is arranged on the side of the support plate; a pressing plate is arranged on the top of the support rod, and the pressing plate is a telescopic structure; it also includes a driving assembly, and when the driving assembly drives the pressing plate and the plywood to move downward synchronously, the support plate moves to just below the plywood, and at the same time the plywood clamps the wooden boards and drives the wooden boards to move downward synchronously until the adjacent wooden boards are stacked together with their top and bottom surfaces fitting together.

[0007] As a further solution of the present invention, the driving assembly includes a mounting plate arranged on the outside of the support rod; the mounting plate is relatively fixed to the box body, and a through slide groove is opened on the mounting plate, and a plurality of sliders are movably arranged in the slide groove; two adjacent clamping plates are arranged symmetrically about the slider; two connecting rods are hinged on the slider, and the two connecting rods are hinged to the clamping plates on the upper and lower sides of the slider at one end away from the slider respectively; the top connecting rod is hinged to the pressure plate at one end away from the slider; the support plate and the mounting plate are connected by a traction rope; the side of the pressure plate is provided with a longitudinal driving unit for driving it to move in the vertical direction.

[0008] As a further solution of the present invention, the longitudinal driving unit includes a cylinder installed on the top of the box body, and the free end of the cylinder can drive the pressure plate to move in the vertical direction.

[0009] As a further solution of the present invention, the mounting plate is provided with a through-going long strip ventilation hole.

[0010] As a further solution of the present invention, two adjacent support plates are staggered in the vertical direction; and a storage groove capable of storing the support plate located above the splint is provided on the top of the splint.

[0011] As a further solution of the present invention, a roller for reducing sliding friction is installed at the bottom end of the support rod.

[0012] As a further solution of the present invention, the hot air system includes an air inlet opened on the left side wall of the box body, and a fan and a heating box are arranged on the side of the air inlet, and the heating box is arranged on the inner side of the fan.

[0013] As a further solution of the present invention, the exhaust system includes an air outlet opened on the right side wall of the box body, and an exhaust fan is arranged on the side of the air outlet.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention arranges a supporting mechanism, and the supporting mechanism can make the wooden boards switch between placement with gaps and stacking without gaps. When there are gaps between the wooden boards, hot air can pass through the wooden boards evenly, so that the wooden boards can be evenly heated. When the wooden boards are stacked without gaps, wooden boards with a tendency to bend can be corrected by pressing plates and the mutual squeezing between the wooden boards. When the wooden boards are stacked, hot air no longer blows through the wooden boards, and the temperature inside the wooden boards can gradually stabilize. When the wooden boards are subsequently placed back with gaps, they can be heated more evenly, so that the wooden boards can be better prevented from being completely deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the clamping plate, the supporting plate and the return spring of the present invention;

[0019] Figure 4 It is a schematic diagram of the supporting mechanism structure of the present invention;

[0020] Figure 5 It is a schematic cross-sectional view of the support mechanism structure of the present invention;

[0021] Figure 6 for Figure 5 A partial enlarged view of the middle part;

[0022] Figure 7 This is a schematic diagram of the support rod and roller structure of the present invention;

[0023] Figure 8 This is a schematic diagram of the existing state of stacking wooden boards during drying.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-box, 2-hot air system, 3-exhaust system, 4-support mechanism, 5-support rod, 6-plywood, 7-support plate, 8-reset spring, 9-pressure plate, 10-mounting plate, 11-slide groove, 12-slider, 13-connecting rod, 14-traction rope, 15-cylinder, 16-ventilation hole, 17-storage slot, 18-roller, 19-air inlet, 20-fan, 21-heating box, 22-air outlet, 23-exhaust fan. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 7The present invention provides a technical solution: a drying box for eliminating stress in a board, comprising a box body 1, wherein the box body 1 is used to install a drying actuator; a hot air system 2, which is arranged at one side of the box body 1 and is used to transport hot air into the box body 1; an exhaust system 3, which is arranged in the box body 1 and is arranged opposite to the hot air system 2, and is used to exhaust the humid air in the box body 1; and a support mechanism 4, which is arranged in the box body 1 and is located between the hot air system 2 and the exhaust system 3, and is used to place wooden boards and can automatically adjust the distance between the wooden boards. The support mechanism 4 can make the wooden boards intermittently stacked together , in a way of squeezing, the deformation of the wooden board caused by uneven heating is resisted; the support mechanism 4 includes two support rods 5 slidably installed in the box body 1, and the two support rods 5 are symmetrically arranged; the support rods 5 are slidably installed with a number of equally distributed plywood 6 in the vertical direction, the height of the plywood 6 is greater than the thickness of the wooden board, and two adjacent wooden boards can be stacked together with their top and bottom surfaces fitting together; a support plate 7 is slidably installed at the bottom of the plywood 6 in the horizontal direction, and one end of the support plate 7 extends to the outside of the plywood 6, and the cross-section of the support plate 7 and the plywood 6 after being combined is "L" shaped, The wooden board is placed at the angle; a return spring 8 for returning the support plate 7 is arranged on the side thereof; a pressing plate 9 is arranged on the top of the support rod 5, and the pressing plate 9 is a telescopic structure; it also includes a driving component, when the driving component drives the pressing plate 9 and the clamping plate 6 to move downward synchronously, the support plate 7 moves to the bottom of the clamping plate 6, and the clamping plate 6 clamps the wooden board and drives the wooden board to move downward synchronously until the adjacent wooden boards are stacked together with their top and bottom surfaces in contact; the driving component includes a mounting plate 10 arranged on the outside of the support rod 5; the mounting plate 10 is relatively fixed to the box body 1, so that The mounting plate 10 is provided with a through slide groove 11, in which a plurality of sliders 12 are movably arranged; two adjacent clamping plates 6 are symmetrically arranged about the slider 12; two connecting rods 13 are hinged on the slider 12, and the two ends of the connecting rods 13 away from the slider 12 are respectively hinged to the clamping plates 6 located on the upper and lower sides of the slider 12; the top end of the connecting rod 13 away from the slider 12 is hinged to the pressure plate 9; the support plate 7 is connected to the mounting plate 10 by a traction rope 14; the side of the pressure plate 9 is provided with a longitudinal driving unit for driving it to move in the vertical direction.

[0028] During operation, when drying, the staff puts the wooden boards one by one on the support plate 7, and puts a wooden board on each layer of the support plate 7; after the wooden boards are placed, the box door is closed, and the hot air system 2 starts to work. The hot air system 2 will heat the air and blow it into the box body 1 to heat the wooden boards, so that the moisture in the wooden boards evaporates; the exhaust system 3 can work to exhaust the moist air in the box body 1; after the hot air system 2 has worked for a certain period of time, the longitudinal drive unit starts to work, and the longitudinal drive unit will drive the pressing plate 9 to move downward, and the pressing plate 9 will slide downward on the support rod 5, and the pressing plate 9 will pass The top clamping plate 6 is driven to move downward synchronously through the connecting rod 13 and the slider 12; since the mounting plate 10 is relatively fixed to the box body 1, when the pressing plate 9 and the clamping plate 6 move downward, under the action of the connecting rod 13, the clamping plate 6 will move toward the side close to the wooden board, and the pressing plate 9 will shrink. When the clamping plate 6 moves horizontally, it will drive the supporting rod 5 to move synchronously. The supporting rod 5 plays a supporting and guiding role. The clamping plates 6 on both sides will cooperate to clamp the wooden board. The top clamping plate 6 will drive the clamping plate 6 below it to move downward synchronously through the connecting rod 13 and the slider 12, and the pressing plate 9 and multiple clamping plates 6 will move downward synchronously; Figure 6 As shown, when the clamping plate 6 drives the supporting plate 7 to move downward synchronously, the supporting plate 7 will move to the bottom of the clamping plate 6 under the action of the traction rope 14; it should be noted that the mounting plate 10 and the supporting plate 7 are both equipped with a ring, and the hooks at both ends of the traction rope 14 are respectively hooked on the two rings, which can facilitate the replacement of the traction rope 14; until all the wooden boards are stacked together (the top and bottom surfaces of two adjacent wooden boards are in contact with each other), the bottom wooden board will move to a position in contact with the bottom surface of the box body 1, and the top surface of the top wooden board will be pressed by the pressing plate 9, and the bending and deformation of the wooden board during the drying process will be prevented by physical extrusion; after a certain period of extrusion, the longitudinal driving unit drives the pressing plate 9 to move upward again, and the pressing plate 9 will drive the clamping plate 6 to move downward synchronously through the connecting rod 13 and the slider 12. At this time, the clamping plate 6 clamping the wooden board will drive the wooden board to move upward synchronously, and the supporting plate 7 will extend outward under the elastic force of the reset spring 8, and the supporting plate 7 will support the bottom of the wooden board again, and then the clamping plate 6 will cancel the clamping of the wooden board; until the pressing plate 9 moves back upward Figure 2 The initial position shown, at this time the support mechanism 4 is in Figure 4In the initial state shown, there are gaps of a certain height between the wooden boards, and hot air can flow through the wooden boards again to heat the wooden boards. The present invention arranges a supporting mechanism, and the supporting mechanism can enable the wooden boards to switch between placement with gaps and stacking without gaps. When there are gaps between the wooden boards, hot air can pass evenly between the wooden boards to heat the wooden boards evenly. When the wooden boards are stacked without gaps, the wooden boards with a tendency to bend can be corrected by the mutual squeezing of the pressing plate 9 and the wooden boards. When the wooden boards are stacked, hot air no longer blows through the wooden boards, and the temperature inside the wooden boards can gradually stabilize. When the wooden boards are subsequently placed back with gaps, they can be heated more evenly, which can better prevent the wooden boards from being completely deformed.

[0029] Specifically, Figure 4 As shown, the longitudinal driving unit includes a cylinder 15 installed on the top of the box body 1, and the free end of the cylinder 15 can drive the pressing plate 9 to move in the vertical direction.

[0030] During operation, the extension and retraction of the cylinder 15 can drive the pressing plate 9 to move in the vertical direction. The free end of the cylinder 15 is fixedly connected with a sliding seat slidably connected to the top of the pressing plate 9. The extension and retraction of the cylinder 15 does not affect the extension and retraction of the pressing plate 9.

[0031] Specifically, Figure 6 As shown, the mounting plate 10 is provided with a through-going long strip ventilation hole 16 .

[0032] When working, the hot air generated by the hot air system 2 can be blown to the surface of the wooden board through the ventilation holes 16 to evaporate the moisture on the surface of the wooden board.

[0033] Specifically, Figure 3 As shown, two adjacent support plates 7 are staggered in the vertical direction; a receiving groove 17 capable of receiving the support plate 7 located above the clamping plate 6 is provided on the top.

[0034] During operation, when the splint 6 moves downward, the support plate 7 moves to the position directly below the splint 6 and then to the position directly above the storage groove 17 below the splint 6. The support plate 7 can be stored in the storage groove 17, thereby shortening the distance between two adjacent splints 6. When the thickness of the wooden board is equal to the height of the splint 6, the supporting mechanism can also be applied. Therefore, the thickness of the support plate 7 can be set according to actual conditions, so that the support plate 7 can better carry the wooden board.

[0035] Specifically, Figure 7 As shown, a roller 18 for reducing sliding friction is installed at the bottom end of the support rod 5.

[0036] During operation, the roller 18 can reduce the friction force of the support rod 5 when it slides in the horizontal direction.

[0037] Specifically, Figure 2 As shown, the hot air system 2 includes an air inlet 19 opened on the left side wall of the box body 1, and a fan 20 and a heating box 21 are arranged on the side of the air inlet 19. The heating box 21 is arranged inside the fan 20.

[0038] When working, the fan 20 draws air from the air inlet 19, and after being heated by the heating box 21, blows the air into the box body 1 to heat the wooden board.

[0039] Specifically, Figure 2 As shown, the exhaust system 3 includes an air outlet 22 opened on the right side wall of the box body 1, and an exhaust fan 23 is arranged on the side of the air outlet 22.

[0040] When working, the exhaust fan 23 can exhaust the moist air in the box body 1 from the air outlet 22 .

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying oven for eliminating internal stress of a plate, comprising: A box body (1), wherein the box body (1) is used to install a drying actuator; A hot air system (2), arranged on one side of the box (1) and used to transport hot air into the box (1); An exhaust system (3) is disposed in the box body (1) and arranged opposite to the hot air system (2), and is used to exhaust the humid air in the box body (1); The invention is characterized in that it also includes a support mechanism (4), which is arranged in the box body (1) and between the hot air system (2) and the exhaust system (3), and is used to place wooden boards and can automatically adjust the distance between the wooden boards. The support mechanism (4) can stack the wooden boards together intermittently, and use a squeezing method to resist deformation of the wooden boards caused by uneven heating. The support mechanism (4) comprises two support rods (5) slidably mounted in the box body (1), the two support rods (5) being symmetrically arranged; a plurality of equally spaced plywood (6) are slidably mounted on the support rods (5) in the vertical direction, the height of the plywood (6) being greater than the thickness of the wooden board, and two adjacent wooden boards can be stacked together with their top and bottom surfaces fitting together; a support plate (7) is slidably mounted on the bottom of the plywood (6) in the horizontal direction, one end of the support plate (7) extending to the outside of the plywood (6), the support plate (7) and the plywood (6) being in contact with each other. ) are assembled into an "L"-shaped cross-section, with the wooden board placed at the angle; a return spring (8) is arranged on the side of the support plate (7) for returning the board to its original position; a pressure plate (9) is arranged on the top of the support rod (5), and the pressure plate (9) is a telescopic structure; and the support plate (7) also includes a driving component, and when the driving component drives the pressure plate (9) and the clamping plate (6) to move downward synchronously, the support plate (7) moves to the bottom of the clamping plate (6), and at the same time the clamping plate (6) clamps the wooden board and drives the wooden board to move downward synchronously until the adjacent wooden boards are stacked together with their top and bottom surfaces fitting together.

2. A drying box for eliminating internal stress of a plate according to claim 1, characterized in that: The driving assembly comprises a mounting plate (10) arranged on the outside of the support rod (5); the mounting plate (10) is relatively fixed to the box body (1), and a through slide groove (11) is provided on the mounting plate (10), and a plurality of sliders (12) are movably arranged in the slide groove (11); two adjacent clamping plates (6) are symmetrically arranged with respect to the sliders (12); two connecting rods (13) are hinged on the sliders (12), and the ends of the two connecting rods (13) away from the sliders (12) are respectively hinged to the clamping plates (6) located on the upper and lower sides of the sliders (12); the end of the topmost connecting rod (13) away from the sliders (12) is hinged to the pressure plate (9); the support plate (7) and the mounting plate (10) are connected by a traction rope (14); and a longitudinal driving unit for driving the pressure plate (9) to move in a vertical direction is provided on the side of the pressure plate (9).

3. A drying box for eliminating internal stress of a plate according to claim 2, characterized in that: The longitudinal drive unit comprises a cylinder (15) mounted on the top of the box body (1), and the free end of the cylinder (15) is capable of driving the pressing plate (9) to move in the vertical direction.

4. A drying box for eliminating internal stress of a plate according to claim 2, characterized in that: The mounting plate (10) is provided with a through-going long strip ventilation hole (16).

5. A drying box for eliminating internal stress of a plate according to claim 1, characterized in that: Two adjacent support plates (7) are staggered in the vertical direction; a receiving groove (17) capable of receiving the support plate (7) located above the clamping plate (6) is provided on the top of the clamping plate (6).

6. A drying box for eliminating internal stress of a plate according to claim 1, characterized in that: A roller (18) for reducing sliding friction is installed at the bottom end of the support rod (5).

7. A drying box for eliminating internal stress of a plate according to claim 1, characterized in that: The hot air system (2) comprises an air inlet (19) opened on the left side wall of the box body (1), a fan (20) and a heating box (21) are arranged on the side of the air inlet (19), and the heating box (21) is arranged on the inner side of the fan (20).

8. A drying box for eliminating internal stress of a plate according to claim 1, characterized in that: The exhaust system (3) comprises an air outlet (22) opened on the right side wall of the box body (1), and an exhaust fan (23) is arranged on the side of the air outlet (22).

Images