CN210616809U - Novel prepressing device of plywood for manufacturing wooden products - Google Patents

Abstract

The utility model provides a novel woodwork manufacturing with pre-compaction device of plywood, including suppression base, bracing piece, rubber sleeve, locking threaded rod, wing nut, but joint location protection suppression plate structure, but the pressboard structure of rotation regulation, adjustable slip supporting rod structure, wooden board, toolbox, division board, rotatory chamber door, socket, glue bucket and arc lifting rod, the lower extreme four corners position at the suppression base of welding respectively in the upper end of bracing piece. The utility model discloses the setting of removal threaded rod, first square-head nut, second square-head nut, protective tube and suppression base is favorable to fixing wooden board in the rubber coating process and carries out the rubber coating work, conveniently fixes wooden board in the in-process of pre-compaction and carries out the pre-compaction work; locking threaded rod protects the embossing plate, and the bell and spigot joint pipe, U type seat, the setting of L type dead lever and arc joint board is favorable to fixing the protection embossing plate at the in-process that carries out the pre-compaction, conveniently carries out pre-compaction work.

Description

Novel prepressing device of plywood for manufacturing wooden products

Technical Field

The utility model belongs to the technical field of the plywood pre-compaction device, especially, relate to a novel woodwork make with pre-compaction device of plywood.

Background

The plywood is one of common furniture materials, is one of three large plates of an artificial plate, and can also be used as a material for airplanes, ships, trains, automobiles, buildings, packing boxes and the like. A group of veneers are typically assembled and glued perpendicular to each other in the direction of the adjacent layers of wood grain, and the skins and inner sheets are typically symmetrically disposed on either side of the center layer or core. The glued veneer is pressed into the wood grain board blank by the criss-cross matching of the glued veneer according to the wood grain direction under the condition of heating or not heating. The number of layers is generally odd, and a few are even. The difference of physical and mechanical properties in the longitudinal and transverse directions is small. The types of plywood commonly used are plywood, plywood and the like. The plywood can improve the utilization rate of the wood and is a main way for saving the wood.

But the prior plywood prepressing device also has the problems that the glued board is inconvenient to fix, the board is inconvenient to place in the pressing process, and the pressed board is inconvenient to adjust according to the area of the board.

Therefore, it is necessary to invent a new type of prepressing device for plywood used for manufacturing wood products.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a novel woodwork is prepressing device of plywood for manufacturing to there is the plank after inconvenient fixed rubber coating in the current plywood prepressing device of solution, the inconvenient problem of placing the plank and inconvenient according to the plank area regulation pressboard at the in-process of suppression. A novel pre-pressing device for plywood for manufacturing wooden products comprises a pressing base, a supporting rod, a rubber sleeve, a locking threaded rod, wing nuts, a clamping and positioning protective pressing plate structure, a rotary adjustable pressing plate structure, an adjustable sliding clamping rod structure, wooden plates, a tool box, a partition plate, a rotary box door, a plug socket, a glue bucket and an arc-shaped lifting rod, wherein the upper end of the supporting rod is respectively welded at the four corners of the lower end of the pressing base; the rubber sleeves are respectively sleeved on the outer walls of the lower ends of the supporting rods; the locking threaded rods are respectively welded on the left side and the right side of the upper end of the pressing base; the wing nuts are respectively in threaded connection with the upper part of the outer wall of the locking threaded rod; the clamping positioning protection pressing plate structure is arranged on the outer wall of the locking threaded rod; the rotatable adjusting pressing plate structure is arranged at the upper end of the locking threaded rod; the adjustable sliding clamping rod structures are arranged inside the left side and the right side of the pressing base; the wooden plate is placed in the middle of the upper end of the pressing base; the tool box is connected to the lower part of the right side of the supporting rod arranged on the right side through a bolt; the partition plates are sequentially welded on the inner wall of the tool box from top to bottom; the rotary box door is hinged to the right side of the tool box; the plug socket is welded at the lower part of the left side of the supporting rod arranged at the left side; the glue barrel is inserted in the middle of the inner part of the upper end of the inserting seat; two ends of the arc-shaped lifting rod respectively penetrate through holes formed in the upper end of the glue barrel; the clamping, positioning and protecting pressing plate structure comprises a protecting pressing plate, a sleeve pipe, a rubber pad, a U-shaped seat, an L-shaped fixed rod and an arc-shaped clamping plate, wherein the sleeve pipe is respectively welded at the middle positions of the left side and the right side of the protecting pressing plate; the rubber pad is glued at the middle position of the lower end of the protective pressing plate; the U-shaped seats are respectively bolted at the middle positions of the left side and the right side of the sleeve pipe; the upper ends of the L-shaped fixed rods are respectively connected to the middle position in the U-shaped seat in a shaft mode; the arc-shaped clamping and connecting plates are respectively welded at the lower parts of the left side and the right side of the L-shaped fixing rod.

Preferably, the pressing plate structure capable of being rotatably adjusted comprises a U-shaped frame, a T-shaped tightening rod, a pressure plate, a deep groove ball bearing, an inserting rod and an extending plate, wherein the T-shaped tightening rod penetrates through the middle position inside the U-shaped frame; the deep groove ball bearing is embedded in the middle of the inner part of the upper end of the pressure plate; one end of the insertion rod is respectively inserted in the middle positions of the inner parts of the left side and the right side of the pressure plate; the other end of the plug rod is respectively welded at the middle positions of the left side and the right side of the extension plate; the lower end of the T-shaped tightening rod is inserted into the inner ring of the deep groove ball bearing.

Preferably, the adjustable sliding clamping rod structure comprises a movable threaded rod, a first square-head nut, a second square-head nut, a protective tube, a rotating rod and a stainless steel ball, wherein the first square-head nut is in threaded connection with the upper part of the outer wall of the movable threaded rod; the second square-head nut is in threaded connection with the lower part of the outer wall of the movable threaded rod; the protective pipe is sleeved on the outer wall of the upper end of the movable threaded rod; the rotating rod penetrates through the middle position inside the lower end of the movable threaded rod; the stainless steel balls are respectively welded at two ends of the rotating rod.

Preferably, the protective pressing plate is a stainless steel plate; the arc-shaped clamping and connecting plate is an arc-shaped stainless steel plate.

Preferably, the pressing base is a stainless steel base with a sliding hole formed inside; the plug socket adopts a stainless steel socket with a plug groove at the upper end.

Preferably, the sleeve pipes are respectively sleeved at the middle positions of the outer walls of the locking threaded rods; the wing nut is arranged at the upper end of the sleeve pipe; the arc-shaped clamping plate is clamped on the outer wall of the locking threaded rod.

Preferably, the outer wall of the lower end of the T-shaped tightening rod is in interference fit with the inner ring of the deep groove ball bearing; the pressure plate is a stainless steel plate with splicing holes arranged in the middle positions of the left side and the right side; the U-shaped frame is in threaded connection with the T-shaped tightening rod.

Preferably, the lower ends of the U-shaped frames are respectively welded at the upper ends of the locking threaded rods.

Preferably, the protective pipe is a PVC pipe; the movable threaded rod is a stainless steel threaded rod with a through hole at the lower end.

Preferably, the movable threaded rods respectively penetrate through sliding holes formed in the pressing base; the first square nut is inserted in a sliding groove formed in the upper end of the pressing base in a sliding manner; and the second square-head nut is arranged at the lower end of the pressing base.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, removal threaded rod, first square nut, second square nut, the setting of protective tube and suppression base is favorable to carrying out the rubber coating work at the fixed wooden board of rubber coating in-process, the convenience carries out pre-compaction work at the fixed wooden board of in-process of pre-compaction.

2. The utility model discloses in, locking threaded rod, protection pressboard, cup joint pipe, U type seat, the setting of L type dead lever and arc joint board is favorable to carrying out the fixed protection pressboard of in-process of pre-compaction, conveniently carries out pre-compaction work.

3. The utility model discloses in, pressure plate, the setting of inserted bar and extension board, be favorable to adjusting work according to the area of wooden board, conveniently carry out the not wooden board pre-compaction work of equidimension.

4. The utility model discloses in, U type frame, T type tightening rod, the pressure plate and deep groove ball bearing's setting is favorable to changing the pressure of protection pressboard, prevents that pressure undersize from influencing the pre-compaction quality of wooden board.

5. The utility model discloses in, the setting of protection pressboard and rubber pad, be favorable to protecting the wooden board at the in-process of pre-compaction, prevent that the protection pressboard from damaging the surface of wooden board.

6. The utility model discloses in, the setting of removal threaded rod, rotary rod and stainless steel ball be favorable to rotatory removal threaded rod, the wooden board of the different thickness of the high fixed of protective tube is conveniently adjusted.

7. The utility model discloses in, the bell and spigot pipe, the setting of locking threaded rod and wing nut is favorable to changing the pressure at protection pressboard both ends, prevents the different pre-compaction quality that influences wooden board of pressure.

8. The utility model discloses in, the suppression base, the bracing piece, the plug socket, the setting of glue bucket and arc promoting pole is favorable to depositing glue, conveniently carries out the rubber coating work at the in-process of pre-compaction.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the clamping positioning protection pressing plate structure of the present invention.

Fig. 3 is a schematic structural view of the pressing plate structure with rotatable adjustment of the present invention.

Fig. 4 is a schematic structural view of the adjustable sliding clamping rod structure of the present invention.

In the figure:

1. pressing the base; 2. a support bar; 3. a rubber sleeve; 4. locking the threaded rod; 5. wing nuts; 6. the clamping positioning protection pressing plate structure can be used; 61. a protective pressboard; 62. sleeving a pipe; 63. a rubber pad; 64. a U-shaped seat; 65. an L-shaped fixing rod; 66. an arc-shaped clamping and connecting plate; 7. the pressing plate structure can be adjusted in a rotating way; 71. a U-shaped frame; 72. a T-shaped tightening rod; 73. a pressure plate; 74. a deep groove ball bearing; 75. a plug rod; 76. an extension plate; 8. an adjustable sliding clamping rod structure; 81. moving the threaded rod; 82. a first square nut; 83. a second square-head nut; 84. a protective tube; 85. rotating the rod; 86. stainless steel balls; 9. a wooden board; 10. a tool box; 11. a partition plate; 12. rotating the box door; 13. a socket; 14. a glue bucket; 15. arc-shaped lifting rods.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a novel plywood prepressing device for wood product manufacturing comprises a pressing base 1, a support rod 2, a rubber sleeve 3, a locking threaded rod 4, a wing nut 5, a positioning protection pressing plate structure 6 which can be clamped, a rotatable adjusting pressing plate structure 7, an adjustable sliding clamping rod structure 8, a wooden plate 9, a tool box 10, a separation plate 11, a rotary box door 12, an inserting seat 13, a glue bucket 14 and an arc lifting rod 15, wherein the upper end of the support rod 2 is respectively welded at the four corners of the lower end of the pressing base 1; the rubber sleeves 3 are respectively sleeved on the outer walls of the lower ends of the supporting rods 2; the locking threaded rods 4 are respectively welded on the left side and the right side of the upper end of the pressing base 1; the wing nuts 5 are respectively in threaded connection with the upper part of the outer wall of the locking threaded rod 4; the clamping positioning protection pressing plate structure 6 is arranged on the outer wall of the locking threaded rod 4; the rotatable adjusting pressing plate structure 7 is arranged at the upper end of the locking threaded rod 4; the adjustable sliding clamping rod structures 8 are arranged inside the left side and the right side of the pressing base 1; the wooden plate 9 is placed in the middle of the upper end of the pressing base 1; the tool box 10 is connected with the lower part of the right side of the supporting rod 2 arranged on the right side through a bolt; the partition plates 11 are welded on the inner wall of the tool box 10 from top to bottom in sequence; the rotary box door 12 is hinged to the right side of the tool box 10; the plug socket 13 is welded at the lower part of the left side of the support rod 2 arranged at the left side; the glue barrel 14 is inserted in the middle of the upper end of the inserting seat 13; two ends of the arc-shaped lifting rod 15 respectively penetrate through holes formed in the upper end of the glue barrel 14; the clamping positioning protection pressing plate structure 6 comprises a protection pressing plate 61, a sleeve pipe 62, a rubber pad 63, a U-shaped seat 64, an L-shaped fixed rod 65 and an arc-shaped clamping plate 66, wherein the sleeve pipe 62 is respectively welded at the middle positions of the left side and the right side of the protection pressing plate 61; the rubber pad 63 is glued at the middle position of the lower end of the protective pressing plate 61; the U-shaped seats 64 are respectively bolted at the middle positions of the left side and the right side of the sleeve pipe 62; the upper ends of the L-shaped fixing rods 65 are respectively and axially connected to the middle position in the U-shaped seat 64; the arc-shaped clamping plates 66 are respectively welded at the lower parts of the left side and the right side of the L-shaped fixed rod 65; the during operation, loosen wing nut 5, rebound bell and spigot pipe 62, it removes to suitable height to drive protection pressboard 61, it makes the outer wall of arc joint board 66 joint at locking threaded rod 4 to rotate L type dead lever 65, place wooden board 9 in the upper end of suppression base 1, the use tool carries out glue at wooden board 9's upper end and paints work, then the placing in wooden board 9's upper end of the plank that will need the suppression, rotate L type dead lever 65, take arc joint board 66 off, make protection pressboard 61 press and cover in wooden board 9's upper end, conveniently carry out wooden board 9 veneer pre-compaction work.

In this embodiment, referring to fig. 3, the rotatable pressing plate structure 7 includes a U-shaped frame 71, a T-shaped tightening rod 72, a pressure plate 73, a deep groove ball bearing 74, a plug rod 75 and an extension plate 76, wherein the T-shaped tightening rod 72 penetrates through the middle position inside the U-shaped frame 71; the deep groove ball bearing 74 is embedded in the middle of the upper end of the pressure plate 73; one end of the plugging rod 75 is respectively plugged in the middle positions of the left and right inner sides of the pressure plate 73; the other end of the plug rod 75 is welded at the middle position of the left side and the right side of the extension plate 76 respectively; the lower end of the T-shaped tightening rod 72 is inserted into the inner ring of the deep groove ball bearing 74; after fixing the wooden board 9, the wing nut 5 is rotated to move downwards, so that the wing nut 5 pushes the sleeve pipe 62 to drive the protection pressing board 61 to carry out the pressing work of the wooden board 9, the extension boards 76 are pulled towards the left side and the right side according to the area of the wooden board 9, the T-shaped tightening rod 72 is rotated to push the pressure board 73 to move downwards to apply pressure to the protection pressing board 61, and the gluing prepressing work of the wooden board 9 is carried out.

In this embodiment, referring to fig. 4, the adjustable sliding clamping rod structure 8 includes a movable threaded rod 81, a first square nut 82, a second square nut 83, a protection tube 84, a rotating rod 85 and a stainless steel ball 86, wherein the first square nut 82 is connected to the upper portion of the outer wall of the movable threaded rod 81 in a threaded manner; the second square-head nut 83 is in threaded connection with the lower part of the outer wall of the movable threaded rod 81; the protective pipe 84 is sleeved on the outer wall of the upper end of the movable threaded rod 81; the rotating rod 85 penetrates through the middle position inside the lower end of the movable threaded rod 81; the stainless steel balls 86 are respectively welded at two ends of the rotating rod 85; in the process of gluing the wooden plate 9, loosening the second square-head nut 83 to rotate the movable threaded rod 81 to push the protective pipe 84 to move upwards, or rotating the movable threaded rod 81 to drive the protective pipe 84 to move downwards according to the thickness positive direction of the wooden plate 9, adjusting the height of the protective pipe 84, then screwing the first square-head nut 82 to fix the protective pipe 84, clamping and fixing the wooden plate 9 simultaneously, and preventing the wooden plate 9 from moving to influence gluing and prepressing work in the gluing process.

In this embodiment, specifically, the protective pressing plate 61 is a stainless steel plate; the arc-shaped clamping plate 66 is made of an arc-shaped stainless steel plate.

In this embodiment, specifically, the pressing base 1 is a stainless steel base with a sliding hole therein; the plug socket 13 is a stainless steel socket with a plug groove at the upper end.

In this embodiment, specifically, the sleeving pipes 62 are respectively sleeved at the middle positions of the outer walls of the locking threaded rods 4; the wing nut 5 is arranged at the upper end of the sleeve pipe 62; the arc-shaped clamping plate 66 is clamped on the outer wall of the locking threaded rod 4.

In this embodiment, specifically, the outer wall of the lower end of the T-shaped tightening rod 72 is in interference fit with the inner ring of the deep groove ball bearing 74; the pressure plate 73 is a stainless steel plate with splicing holes arranged in the middle positions of the left side and the right side; the U-shaped frame 71 and the T-shaped tightening rod 72 are in threaded connection.

In this embodiment, specifically, the lower ends of the U-shaped frames 71 are respectively welded to the upper ends of the locking threaded rods 4.

In this embodiment, specifically, the protection pipe 84 is a PVC pipe; the movable threaded rod 81 is a stainless steel threaded rod with a through hole at the lower end.

In this embodiment, specifically, the movable threaded rods 81 respectively penetrate through sliding holes formed in the pressing base 1; the first square nut 82 is inserted in a sliding groove formed in the upper end of the pressing base 1 in a sliding manner; the second square-head nut 83 is arranged at the lower end of the pressing base 1.

Principle of operation

In the utility model, in operation, the wing nut 5 is loosened, the sleeve 62 is moved upwards to drive the protection pressing plate 61 to move to a proper height, the L-shaped fixing rod 65 is rotated to clamp the arc clamping plate 66 on the outer wall of the locking threaded rod 4, the wooden plate 9 is placed on the upper end of the pressing base 1, a tool is used to paint glue on the upper end of the wooden plate 9, then the wood plate to be pressed is placed on the upper end of the wooden plate 9, the L-shaped fixing rod 65 is rotated to remove the arc clamping plate 66, the protection pressing plate 61 is pressed on the upper end of the wooden plate 9, the gluing prepressing work of the wooden plate 9 is convenient, after the wooden plate 9 is fixed, the wing nut 5 is rotated downwards to drive the sleeve 62 to drive the protection pressing plate 61 to press the wooden plate 9, the extension plate 76 is pulled towards the left side and the right side according to the area of the wooden plate 9, rotatory T type tightening rod 72 promotes pressure plate 73 and moves down and applys pressure to protection pressboard 61, carry out wooden board 9 veneer pre-compaction work, carry out the gummed in-process of wooden board 9, loosen second square nut 83 direction and rotate the removal threaded rod 81 and promote protection pipe 84 rebound, perhaps rotate the removal threaded rod 81 and drive protection pipe 84 rebound according to the thickness positive direction of wooden board 9, the height of protection pipe 84 has been adjusted, then tighten first square nut 82 and fix protection pipe 84, fix wooden board 9 centre gripping simultaneously, prevent that wooden board 9 from moving the influence rubber coating and pre-compaction work at the gummed in-process.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims (10)

1. The utility model provides a prepressing device of plywood for the manufacturing of novel woodwork, which is characterized in that, this prepressing device of plywood for the manufacturing of novel woodwork includes pressing base (1), bracing piece (2), rubber sleeve (3), locking threaded rod (4), wing nut (5), but the joint location protection pressboard structure (6), but the rotatable regulation presses the board structure (7), but the regulation slip clamping rod structure (8), wooden board (9), toolbox (10), division board (11), rotatory chamber door (12), socket (13), glue bucket (14) and arc lifting rod (15), the upper end of bracing piece (2) weld respectively in the lower extreme four corners position of pressing base (1); the rubber sleeves (3) are respectively sleeved on the outer walls of the lower ends of the supporting rods (2); the locking threaded rods (4) are respectively welded on the left side and the right side of the upper end of the pressing base (1); the wing nuts (5) are respectively in threaded connection with the upper part of the outer wall of the locking threaded rod (4); the clamping positioning protection pressing plate structure (6) is arranged on the outer wall of the locking threaded rod (4); the rotatable adjusting pressing plate structure (7) is arranged at the upper end of the locking threaded rod (4); the adjustable sliding clamping rod structures (8) are arranged inside the left side and the right side of the pressing base (1); the wooden plate (9) is placed in the middle of the upper end of the pressing base (1); the tool box (10) is connected to the lower part of the right side of the supporting rod (2) arranged on the right side through a bolt; the partition plates (11) are sequentially welded on the inner wall of the tool box (10) from top to bottom; the rotary box door (12) is hinged to the right side of the tool box (10); the plug socket (13) is welded at the lower part of the left side of the supporting rod (2) arranged at the left side; the glue bucket (14) is inserted in the middle of the inner part of the upper end of the inserting seat (13); two ends of the arc-shaped lifting rod (15) respectively penetrate through holes formed in the upper end of the glue barrel (14); the clamping positioning protection pressing plate structure (6) comprises a protection pressing plate (61), a sleeve pipe (62), a rubber pad (63), a U-shaped seat (64), an L-shaped fixed rod (65) and an arc clamping plate (66), wherein the sleeve pipe (62) is welded at the middle position of the left side and the right side of the protection pressing plate (61) respectively; the rubber pad (63) is glued at the middle position of the lower end of the protective pressing plate (61); the U-shaped seats (64) are respectively bolted at the middle positions of the left side and the right side of the sleeve pipe (62); the upper ends of the L-shaped fixing rods (65) are respectively and axially connected to the middle position in the U-shaped seat (64); the arc-shaped clamping plates (66) are respectively welded at the lower parts of the left side and the right side of the L-shaped fixed rod (65).

2. The new plywood prepressing device for wood product production according to claim 1, characterized in that said rotatably adjustable hold-down plate structure (7) comprises a U-shaped frame (71), a T-shaped tightening rod (72), a pressure plate (73), a deep groove ball bearing (74), a plug rod (75) and an extension plate (76), said T-shaped tightening rod (72) penetrating the inner middle position of the U-shaped frame (71); the deep groove ball bearing (74) is embedded in the middle of the upper end of the pressure plate (73); one end of the insertion rod (75) is respectively inserted in the middle positions of the inner parts of the left side and the right side of the pressure plate (73); the other end of the plug rod (75) is respectively welded at the middle position of the left side and the right side of the extension plate (76); the lower end of the T-shaped tightening rod (72) is inserted into the inner ring of the deep groove ball bearing (74).

3. The new plywood prepressing device for wood product production according to claim 1, characterized in that said adjustable sliding clamping rod structure (8) comprises a moving threaded rod (81), a first square nut (82), a second square nut (83), a protective tube (84), a rotating rod (85) and a stainless steel ball (86), said first square nut (82) is screwed on the upper part of the outer wall of the moving threaded rod (81); the second square-head nut (83) is in threaded connection with the lower part of the outer wall of the movable threaded rod (81); the protective pipe (84) is sleeved on the outer wall of the upper end of the movable threaded rod (81); the rotating rod (85) penetrates through the middle position in the lower end of the movable threaded rod (81); the stainless steel balls (86) are respectively welded at two ends of the rotating rod (85).

4. A new plywood prepressing apparatus for wood production according to claim 1, characterized in that said protective pressboard (61) is stainless steel; the arc-shaped clamping plate (66) is an arc-shaped stainless steel plate.

5. The new plywood prepressing device for wood production according to claim 1, characterized in that the pressing base (1) adopts a stainless steel base with a slide hole inside; the plug socket (13) adopts a stainless steel socket with a plug groove at the upper end.

6. The new plywood prepressing device for wood product production according to claim 1, characterized in that said sleeves (62) are respectively sleeved on the middle position of the outer wall of the locking threaded rod (4); the wing nut (5) is arranged at the upper end of the sleeve pipe (62); the arc-shaped clamping plate (66) is clamped on the outer wall of the locking threaded rod (4).

7. The new plywood prepressing device for wood production according to claim 2, characterized in that the outer wall of the lower end of the T-shaped tightening rod (72) is in interference fit with the inner ring of the deep groove ball bearing (74); the pressure plate (73) is a stainless steel plate with splicing holes arranged in the middle positions of the left side and the right side; the U-shaped frame (71) and the T-shaped tightening rod (72) are in threaded connection.

8. A new plywood prepressing device for wood production according to claim 2, characterized in that the lower ends of said U-shaped frame (71) are welded to the upper ends of said locking threaded rods (4), respectively.

9. A new plywood prepressing device for wood production according to claim 3, characterized in that said protective tube (84) is a PVC tube; the movable threaded rod (81) is a stainless steel threaded rod with a through hole at the lower end.

10. A new plywood prepressing device for wood production according to claim 3, characterized in that said moving threaded rods (81) are respectively passed through slide holes made in the interior of the pressing base (1); the first square nut (82) is inserted in a sliding groove formed in the upper end of the pressing base (1) in a sliding manner; the second square-head nut (83) is arranged at the lower end of the pressing base (1).

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