Push plate system for plywood hot presses

Abstract

The present invention provides a push plate system for a plywood hot press, including a pull rod frame and a push rod frame; the pull rod frame is connected to the push rod frame by an extension speed multiplier; the rod body of the pull rod is provided with a second connecting piece. The fixed frame is installed on the track frame, the mobile frame is installed in the fixed frame, and the mobile frame is connected with the second connecting piece to realize the automation of pushing out the finished board and pushing in the slab, reduce labor costs, and provide a prerequisite for the realization of a closed conveying system for plywood hot press. It is particularly suitable for hot pressing of thin plates. When the finished plate is pushed out and the slab is pushed in, the thin plate and melamine paper can be ensured not to be touched and damaged, thereby improving the hot pressing yield. Moreover, the slab entry and the pushing out of the finished plate are completed at one time, which improves the hot pressing efficiency, reduces energy consumption, further reduces the transformation cost, and is more conducive to the acceptance of plywood enterprises with small profits, making VOCs waste gas treatment feasible in the plywood industry and greatly enhancing the practicality of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of plywood processing and production equipment, in particular to a push plate system for a plywood hot press. Background Art

[0002] In the production process of plywood, hot pressing is the most critical process. Slabs of different thicknesses and curvatures are placed layer by layer into the heating plate layer of the hot press with a layer spacing of 5-8cm. The matching hydraulic press provides power to complete the lifting and lowering of the hot press with the loaded slabs to the hot pressing height. Under certain time and pressure conditions, the slabs are hot extruded and bonded into a molded product. The hydraulic press lowers the height of the hot press according to the working procedure. After that, the product is taken out and a new slab is fed in, thus forming a complete hot pressing process.

[0003] VOCs spillover mainly occurs during the hot pressing process, and its concentration decreases from high to low as the hot pressing process progresses. Therefore, only a small amount of residual VOCs will spillover during the process of feeding the slabs and taking out the finished products. In the early stage of the hot pressing process of plywood, the adhesive undergoes a chemical reaction under high temperature conditions, and some organic components are volatilized by heat. The VOCs generated in this process account for more than 70%-90% of the total VOCs generated by the plywood processing technology, and the main component is formaldehyde.

[0004] In order to ensure that VOCs do not overflow during the hot pressing process of the plywood hot press, the plywood hot press needs to be fully sealed. After sealing, a corresponding automatic plate pushing system is needed to replace the manual plate pushing work. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a push plate system for a plywood hot press.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A push plate system for a plywood hot press comprises a rear tie rod, a side tie rod and a front tie rod, wherein the rear tie rod, the side tie rod and the front tie rod are connected to form a tie rod frame;

[0008] It also includes: a rear push rod, a side push rod and a front push rod; the rear push rod, the side push rod and the front push rod are connected to form a push rod frame;

[0009] The pull rod frame is connected to the push rod frame via an extension speed multiplier;

[0010] The extension speed multiplier comprises: a pull rod, an arc track and a track slider;

[0011] The arc track is adapted to the track slider, the track slider is installed on the arc track and moves along the arc track; the arc track is fixedly installed on the push rod frame;

[0012] One end of the pull rod is connected to the rear pull rod, and the other end is connected to the track slider; the rod body of the pull rod is provided with a second connecting piece; it is characterized in that it also includes a fixed frame and a movable frame;

[0013] The fixed frame is installed on the track frame, the movable frame is installed in the fixed frame, and the movable frame is connected to the second connecting member.

[0014] Wherein, one end of the arc track is parallel to the side push rod, and the other end is parallel to the rear push rod.

[0015] Wherein, the front pull rod and the side pull rod are connected through a first connecting member.

[0016] It also includes a functional part; one end of the functional part is hinged to the first connecting part, the other end of the functional part is provided with a first roller, and the body of the functional part is provided with a second roller.

[0017] Wherein, it also includes a stopper used in conjunction with the functional part; the stopper is fixedly mounted on the side pull rod.

[0018] Among them, it also includes a push plate; the push plate is fixedly installed on the front pull rod; the front end surface of the push plate is a concave arc surface.

[0019] Wherein, the outer end surface of the rear pull rod is provided with a pull rod groove for accommodating the pull rod.

[0020] Wherein, the first roller, the second roller and a hinge point hinged to the first connecting member are in a herringbone shape.

[0021] The present invention realizes the automation of pushing out the finished board and pushing in the slab, reduces the labor cost, and provides the prerequisite for the realization of the closed conveying system of the plywood hot pressing. It is particularly suitable for the hot pressing of thin boards. When the finished board is pushed out and the slab is pushed in, the thin board and melamine paper can be ensured not to be touched and damaged, thereby improving the hot pressing yield. The slab entry and the pushing out of the finished board can be completed at one time, improving the hot pressing efficiency, reducing energy consumption, further reducing the transformation cost, and being more conducive to the acceptance of the plywood enterprises with small profits, making the VOCs waste gas treatment feasible in the plywood industry, and greatly enhancing the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the present invention;

[0025] Figure 3 It is a structural schematic diagram of a part of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure at the tie rod frame when the tie rod frame is withdrawn;

[0027] Figure 5 It is a schematic diagram of the structure of the tie rod frame when the tie rod frame is pushed out;

[0028] Figure 6 yes Figure 4 Schematic diagram of the local structure;

[0029] Figure 7 yes Figure 5 Schematic diagram of the local structure;

[0030] Figure 8 yes Figure 4 Schematic diagram of the local structure;

[0031] Fig. 9 yes Figure 5 Schematic diagram of the local structure. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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.

[0033] according to Figure 1-9 As shown, the push plate system for the plywood hot press of the present invention is described, such as Figure 5 As shown, it includes a rear tie rod 1, a side tie rod 2 and a front tie rod 3, wherein the rear tie rod 1, the side tie rod 2 and the front tie rod 3 are connected to form a tie rod frame; the slab is placed in the tie rod frame, the finished product is pushed out of the hot press by the front tie rod 3, and at the same time the rear tie rod 1 pushes the slab into the hot press.

[0034] It also includes: a rear push rod 16, a side push rod 17 and a front push rod 18; the rear push rod 16, the side push rod 17 and the front push rod 18 are connected to form a push rod frame;

[0035] The pull rod frame is connected to the push rod frame via an extension speed multiplier;

[0036] The extension speed multiplier comprises: a pull rod 13, an arc track 14 and a track slider 15;

[0037] The arc track 14 is matched with the track slider 15, and the track slider 15 is installed on the arc track 14 and moves along the arc track 14; the arc track 14 is fixedly installed on the push rod frame; one end of the pull rod 13 is connected to the rear pull rod 1, and the other end is connected to the track slider 15; the rod body of the pull rod 13 is provided with a second connecting member 19. One end of the arc track 14 is parallel to the side push rod 17, and the other end is parallel to the rear push rod 16.

[0038] like Figure 6-7 As shown, the front tie rod 3 is connected to the side tie rod 2 via a first connecting member 4 ; one end of the first connecting member 4 is fixedly connected to the front tie rod 3 , and the other end is fixedly connected to the side tie rod 2 .

[0039] like Figure 1-3 As shown, it also includes a fixed frame 20 and a mobile frame 21;

[0040] The fixed frame 20 is installed on the track frame 22 , the movable frame 21 is installed in the fixed frame 20 , and the movable frame 21 is connected to the second connecting member 19 .

[0041] like Figure 6-7 As shown, it also includes a functional part 5 and a stopper 6 used in conjunction with the functional part 5; the stopper 6 is fixedly mounted on the side pull rod 2. One end of the functional part 5 is hinged to the first connecting part 4, the other end of the functional part 5 is provided with a first roller 7, and the body of the functional part 5 is provided with a second roller 8. The first roller 7, the second roller 8 and the hinge point 9 hinged to the first connecting part are in a herringbone shape.

[0042] It also includes a push plate 10; the push plate 10 is fixedly mounted on the front pull rod 3; the front end surface of the push plate 10 is a concave arc surface 11. Figure 8-9 As shown, the outer end surface of the rear pull rod 1 is provided with a pull rod groove 12 for receiving the pull rod 13. When the pull rod frame is pushed out or withdrawn, the pull rod groove 12 is used to cooperate with the movement of the pull rod 13 and receive the pull rod 13.

[0043] The present invention can push the finished product out of the hot press and push the slab into the hot press in one step, and in the process of withdrawing after completing the above actions, the push-pull system will not damage the melamine paper. Figure 1-9As shown, the fixed frame 20 is adjusted on the track frame 22 and moved along the track frame 22 to a position suitable for the hot press. After the adjustment is completed, the fixed frame 20 is fixed on the track frame 22. The movable frame 21 is connected to the second connecting member 19. The movable frame 21 moves in the fixed frame 20, driving the second connecting member 19 to move forward, thereby driving the pull rod 13 to rotate. One end of the pull rod 13 is installed on the track slider 15. When the pull rod 13 is driven forward by the second connecting member 19, the track slider 15 moves along the arc track 14, thereby pushing the pull rod frame to accelerate into the hot press. When the pull rod frame accelerates, it is easier to push out the finished product in the hot press. The pull rod frame is pushed outward, and the finished product in the hot press is pushed out by the push plate 10. In the process of the pull rod frame being pushed outward into the hot press, the position relationship of the functional part 5 is as shown in the figure. Figure 6 As shown, the block 6 blocks the functional part 5 from continuing to rotate, preventing the functional part 5 from being unable to reset. At this time, the front pull rod 3 is not supported by the functional part 5, so that under the action of its own gravity, the front pull rod 3 can be more closely attached to the hot pressing layer of the hot press when the pull rod frame is pushed outward, thereby facilitating the smooth pushing out of the finished plate. This structure is particularly suitable for the pushing out of thin plates, and solves the problem that traditional pushing plate systems often fail when pushing thin plates. When the pull rod frame is retracted, it is necessary to ensure that the slab on the hot pressing layer of the hot press and the melamine paper on the slab are not touched. Avoid bringing the pushed-in slab out of the hot press and damaging the melamine paper. Through the functional part 5, when the pull rod frame is retracted, the positional relationship of the functional part 5 is as shown in the figure. Figure 7 As shown, the functional part 5 rotates in the direction of the front pull rod 3, clamps the front pull rod 3 through the second roller 8, and supports the pull rod frame through the first roller 7, so that when the pull rod frame is retracted, the front pull rod 3 is higher than the slab and the melamine paper, so that the pull rod frame can be retracted smoothly.

[0044] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A push plate system for a plywood hot press, comprising a rear tie rod, a side tie rod and a front tie rod, wherein the rear tie rod, the side tie rod and the front tie rod are connected to form a tie rod frame; return It includes a rear push rod, a side push rod and a front push rod; the rear push rod, the side push rod and the front push rod are connected to form a push rod frame; The pull rod frame is connected to the push rod frame via an extension speed multiplier; The extension speed multiplier comprises: a pull rod, an arc track and a track slider; The arc track is adapted to the track slider, the track slider is installed on the arc track and moves along the arc track; the arc track is fixedly installed on the push rod frame; One end of the pull rod is connected to the rear pull rod, and the other end is connected to the track slider; the rod body of the pull rod is provided with a second connecting piece; It is characterized in that: it also includes a fixed frame and a mobile frame; the fixed frame is installed on the track frame, the mobile frame is installed in the fixed frame, and the mobile frame is connected to the second connecting member; After the finished product is pushed out of the hot press and the slab is pushed into the hot press, the push-pull system will not damage the melamine paper during the retreat process; during specific use, the fixed frame is adjusted on the track frame and moved along the track frame to a position suitable for the hot press. After the adjustment is completed, the fixed frame is fixed on the track frame, and the mobile frame is connected to the second connecting member. The mobile frame moves in the fixed frame, driving the second connecting member to move forward, thereby driving the pull rod to rotate; one end of the pull rod is installed on the track slider, and when the pull rod is driven forward by the second connecting member, the track slider moves along the arc track, thereby pushing the pull rod frame to accelerate into the hot press; when the pull rod frame accelerates, it is easier to push out the finished product in the hot press; the pull rod frame is pushed outward, and the push plate The finished product in the machine is pushed out; in the process of the pull rod frame being pushed outward and entering the hot press, the block blocks the functional part from continuing to rotate, preventing the functional part from being unable to reset; at this time, the front pull rod is not supported by the functional part, so that under the action of its own gravity, the front pull rod can fit into the hot pressing layer of the hot press when the pull rod frame is pushed outward, so as to facilitate the smooth pushing out of the finished product plate; this structure is suitable for the pushing out of thin plates, and when the pull rod frame is retracted, it is necessary to ensure that the slab on the hot pressing layer of the hot press and the melamine paper on the slab are not touched; through the functional part, when the pull rod frame is retracted, the functional part rotates in the direction of the front pull rod, clamps the front pull rod through the second roller, and supports the pull rod frame through the first roller, so that when the pull rod frame is retracted, the front pull rod is higher than the slab and the melamine paper, so that the pull rod frame can be retracted.

2. The push plate system for a plywood hot press according to claim 1, Features: One end of the arc track is parallel to the side push rod, and the other end is parallel to the rear push rod.

3. The push plate system for a plywood hot press according to claim 2, Features: The front pull rod is connected to the side pull rod via a first connecting member; further comprising a functional member; one end of the functional member is hinged to the first connecting member, the other end of the functional member is provided with a first roller, and the body of the functional member is provided with a second roller.

4. The push plate system for a plywood hot press according to claim 3, Features: It also includes a stopper used in conjunction with the functional component; the stopper is fixedly mounted on the side pull rod.

5. The push plate system for a plywood hot press according to claim 4, Features: It also includes a push plate; the push plate is fixedly installed on the front pull rod; the front end surface of the push plate is a concave arc surface.

6. The push plate system for a plywood hot press according to claim 5, Features: The outer end surface of the rear pull rod is provided with a pull rod groove for accommodating the pull rod.

7. The push plate system for a plywood hot press according to claim 6, Features: The first roller, the second roller and a hinge point hinged to the first connecting member are in a herringbone shape.

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