A plywood hot pressing and shaping auxiliary equipment

Abstract

This utility model provides an auxiliary device for hot pressing and shaping plywood, relating to the field of plywood production technology. It includes a hot pressing chamber, with a hot pressing and shaping auxiliary component installed on the outside of the chamber. This auxiliary component includes a polymerization frame installed on the outside of an upper frame, with polymerization hydraulic pump rods installed at both ends of the polymerization frame, and four corner clamps installed at the ends of the polymerization hydraulic pump rods. Using this auxiliary device, the plywood is placed on a lower extrusion pressing plate flush with the surface of the hot pressing chamber. Simultaneously, the polymerization hydraulic pump rods outside the polymerization frame push the four corner clamps inward to tighten, forming a stable four-sided support, thereby aligning the four corners of the plywood and preventing unstable force during extrusion. When the upper and lower extrusion pressing plates are pressing the plywood in the hot pressing chamber, a heat dryer is activated, and hot air is evenly sprayed from the nozzles to ensure uniform heating of the plywood and accelerate glue curing.

Description

Technical Field

[0001] This utility model relates to the field of plywood production technology, and in particular to an auxiliary device for hot pressing and shaping plywood. Background Technology

[0002] Hot pressing and shaping of plywood involves placing multiple layers of glued veneer into a hot press and heating and pressing them under high temperature (usually 100-150℃) and high pressure conditions. This process promotes rapid curing of the adhesive and releases the internal stress of the plywood, stabilizing its thickness and dimensions. Ultimately, it forms a high-strength, structurally stable plywood product and is a key process for improving the performance of plywood.

[0003] A search revealed that the document with publication number "CN219006367U" states that "this utility model relates to the field of plywood production technology and discloses a plywood hot press, including a hot press body. A control box is fixedly connected to one side of the hot press body, and an installation port is opened on one side of the control box. A slot is opened at the bottom of the inner wall of the installation port, and a first filter screen is engaged with the inner wall of the slot. A second filter screen is slidably connected to the inner wall of the first filter screen." In use, this utility model has the following advantages and effects: the sealing layer increases the edge sealing performance. When the first and second filters become clogged during use, the operator can remove the bolts to separate the second filter screen from the fixed slot, then pull the second filter screen down and slide it into the first filter screen, removing the first filter screen from the slot. This facilitates disassembly of the filters. The operator can then take the removed first and second filters to a suitable place for thorough cleaning or replacement, avoiding dead corners during cleaning and preventing dust from entering the control box during cleaning.

[0004] However, existing plywood hot pressing and shaping equipment typically relies solely on a single upper extrusion device to extrude and shape the plywood. In actual operation, due to factors such as the flatness of the plywood itself and its placement position, uneven force is prone to occur, resulting in poor plywood shaping effect, surface defects, and affecting product quality. Some traditional hot presses only use an upper pressure plate to press the plywood downwards, lacking corresponding supporting structures below. This makes the plywood prone to displacement during the extrusion process, and local pressure may be too high or too low, failing to guarantee the overall shaping quality. Although some equipment has attempted to add some auxiliary positioning structures, in actual operation, problems such as cumbersome operation and inaccurate positioning still exist, failing to effectively solve the problems of uniform force and shaping effect in the plywood hot pressing and shaping process.

[0005] Therefore, we provide an auxiliary device for hot pressing and shaping plywood to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides an auxiliary device for hot pressing and shaping plywood.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A plywood hot pressing and shaping auxiliary device includes a hot pressing chamber. Plywood pressure shaping components are arranged on the upper and lower sides of the hot pressing chamber. Each plywood pressure shaping component includes an upper frame welded to the upper side of the hot pressing chamber. An upper hydraulic pump rod is welded to the inner top of the upper frame, and an upper extrusion and pressing plate is welded to the lower end of the upper hydraulic pump rod. A lower frame is welded to the lower side of the hot pressing chamber, and a lower hydraulic pump rod is welded to the upper inner side of the lower frame. A lower extrusion and pressing plate is welded to the top of the lower hydraulic pump rod. A hot pressing and shaping auxiliary component is arranged on the outer side of the hot pressing chamber. The hot pressing and shaping auxiliary component includes a polymerization frame installed on the outer side of the upper frame. Polymerization hydraulic pump rods are installed at both ends of the polymerization frame, and four corner clamps are installed at the ends of the polymerization hydraulic pump rods.

[0009] As a further description of the above technical solution:

[0010] The upper hydraulic pump rod and the lower hydraulic pump rod are each provided with four sets, and the upper hydraulic pump rod and the lower hydraulic pump rod drive the upper extrusion pressing plate and the lower extrusion pressing plate to rise and fall synchronously.

[0011] As a further description of the above technical solution:

[0012] The diameters of the upper extrusion pressing plate and the lower extrusion pressing plate are smaller than the inner diameter of the hot press chamber. The upper extrusion pressing plate is located inside the hot press chamber for a long time, and the upper extrusion pressing plate and the lower extrusion pressing plate form a uniform pressure zone inside the hot press chamber.

[0013] As a further description of the above technical solution:

[0014] A soft rubber pad is adhered to the surface of the upper extrusion and pressing plate, and the soft rubber pad is made of hydrogenated nitrile rubber.

[0015] As a further description of the above technical solution:

[0016] The upper surface of the lower extrusion and pressing plate is provided with a polyurethane groove, which is a rectangular groove.

[0017] As a further description of the above technical solution:

[0018] The polymerization frame is symmetrically arranged on the left and right sides of the hot press chamber. The polymerization hydraulic pump rod is located at both ends of the polymerization frame and at the four corners of the hot press chamber. The four corner clips are welded to the ends of the polymerization hydraulic pump rods. The four corner clips retract inward synchronously through the polymerization hydraulic pump rods.

[0019] As a further description of the above technical solution:

[0020] A heat dryer is installed on the front side of the hot press chamber, and the inner wall of the hot press chamber is provided with heat drying air nozzles. The heat dryer and the heat drying air nozzles are connected by pipes.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model utilizes a plywood pressure shaping component. When needed, the lower hydraulic pump rod first pushes the lower extrusion plate to rise to a state level with the surface of the hot press chamber. Then, the lower hydraulic pump rod returns to its original position. At this time, the upper and lower extrusion plates press inward to ensure that the plywood is subjected to uniform force during hot pressing, thus improving the shaping effect. Subsequently, the upper hydraulic pump rod is activated, pushing the upper extrusion plate downward to press the plywood tightly. Simultaneously, the lower hydraulic pump rod is activated, pushing the lower extrusion plate upward, forming bidirectional extrusion within the hot press chamber to ensure uniform pressure on the plywood. As the upper and lower extrusion plates press inward, the soft rubber pad effectively buffers the extrusion pressure, preventing damage to the plywood surface.

[0023] 2. This utility model uses a hot-pressing shaping auxiliary component to place the plywood onto a lower extrusion pressing plate that is flush with the surface of the hot-pressing chamber. At this time, the polymerization hydraulic pump rod outside the polymerization frame will simultaneously push the four corner clips inward to tighten, forming a stable four-sided support, thereby aligning the four corners of the plywood and avoiding unstable force during the extrusion process. When the upper and lower extrusion pressing plates are pressing the plywood in the hot-pressing chamber, the hot air heater is activated, and the hot air nozzles spray hot air evenly to ensure that the plywood is heated evenly, accelerate the curing of the glue, and further improve the efficiency and quality of hot-pressing shaping. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0026] Figure 3 This is a schematic diagram of the mating structure of the hot press chamber and the four corner clips of this utility model;

[0027] Figure 4 This is a schematic diagram of the mating structure of the polymer hydraulic pump rod and the four corner clamps of this utility model;

[0028] Figure 5 This is a schematic diagram of the internal structure of the hot press chamber of this utility model;

[0029] Figure 6This is a schematic diagram of the mating structure of the lower hydraulic pump rod and the lower extrusion pressing plate of this utility model.

[0030] Numbered components in the diagram: 1. Hot press chamber; 2. Plywood pressure shaping assembly; 201. Upper frame; 202. Upper hydraulic pump rod; 203. Upper extrusion pressing plate; 204. Soft rubber pad; 205. Lower frame; 206. Lower hydraulic pump rod; 207. Lower extrusion pressing plate; 208. Polymerization tank; 3. Hot press shaping auxiliary assembly; 301. Polymerization frame; 302. Polymerization hydraulic pump rod; 303. Four corner clips; 304. Heat dryer; 305. Heat drying air nozzle. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 As shown, this utility model provides a technical solution: a plywood hot pressing and shaping auxiliary device, including a hot pressing chamber 1, with plywood pressure shaping components 2 arranged on the upper and lower sides of the hot pressing chamber 1. The plywood pressure shaping components 2 include an upper frame 201 welded to the upper side of the hot pressing chamber 1, upper hydraulic pump rods 202 welded to the inner side of the top of the upper frame 201, and upper extrusion pressing plates 203 welded to the lower end of the upper hydraulic pump rods 202. The lower side of the hot pressing chamber 1 is welded with... The lower frame 205 has a lower hydraulic pump rod 206 welded to the upper inner side of the lower frame 205. The lower extrusion and pressing plate 207 is welded to the top of the lower hydraulic pump rod 206. The hot pressing chamber 1 is provided with a hot pressing and shaping auxiliary component 3. The hot pressing and shaping auxiliary component 3 includes a polymerization frame 301 installed on the outside of the upper frame 201. Polymerization hydraulic pump rods 302 are installed at both ends of the polymerization frame 301. Four corner clips 303 are installed at the ends of the polymerization hydraulic pump rods 302.

[0033] Furthermore, four sets of upper hydraulic pump rods 202 and lower hydraulic pump rods 206 are provided. The upper hydraulic pump rods 202 and lower hydraulic pump rods 206 drive the upper extrusion pressing plate 203 and the lower extrusion pressing plate 207 to rise and fall synchronously, respectively. When needed, the upper hydraulic pump rod 202 is started, which pushes the upper extrusion pressing plate 203 downward, thereby pressing the plywood. At the same time, the lower hydraulic pump rod 206 is started, which pushes the lower extrusion pressing plate 207 upward, forming bidirectional extrusion in the hot press chamber 1 to ensure that the plywood is pressed evenly.

[0034] Furthermore, the diameters of the upper extrusion pressing plate 203 and the lower extrusion pressing plate 207 are smaller than the inner diameter of the hot press chamber 1. The upper extrusion pressing plate 203 is located inside the hot press chamber 1 for a long time. The upper extrusion pressing plate 203 and the lower extrusion pressing plate 207 form a uniform pressure zone inside the hot press chamber 1. When it is needed, the lower extrusion pressing plate 207 is first pushed up to a state that is level with the surface of the hot press chamber 1 by the lower hydraulic pump rod 206. Then the lower hydraulic pump rod 206 returns to its original position. At this time, the upper extrusion pressing plate 203 and the lower extrusion pressing plate 207 squeeze inward to ensure that the plywood is subjected to uniform force during the hot pressing process and improve the shaping effect.

[0035] Furthermore, a soft rubber pad 204 is bonded to the surface of the upper extrusion pressing plate 203. The soft rubber pad 204 is made of hydrogenated nitrile rubber. When needed, as the upper extrusion pressing plate 203 and the lower extrusion pressing plate 207 are pressed inward, the soft rubber pad 204 effectively buffers the extrusion pressure, prevents damage to the plywood surface, and increases friction to ensure that the plywood remains stable during the extrusion process, thereby further improving the accuracy and effect of hot pressing.

[0036] Furthermore, the upper surface of the lower extrusion and pressing plate 207 is provided with a glue-gluing groove 208. The glue-gluing groove 208 is a rectangular groove. During the extrusion process, excess glue in the middle of the plywood is squeezed out and flows into the glue-gluing groove 208. This can reduce the occurrence of glue flowing around and facilitates unified cleaning later.

[0037] Furthermore, the polymerization frame 301 is symmetrically arranged on the left and right sides of the hot press chamber 1. The polymerization hydraulic pump rod 302 is located at both ends of the polymerization frame 301 and at the four corners of the hot press chamber 1. The corner clips 303 are welded to the ends of the polymerization hydraulic pump rods 302. The corner clips 303 retract inward synchronously through the polymerization hydraulic pump rods 302. When needed, the plywood is placed on the lower extrusion and pressing plate 207 that is flush with the surface of the hot press chamber 1. At this time, the polymerization hydraulic pump rods 302 outside the polymerization frame 301 will push the corner clips 303 inward to tighten, forming a stable four-sided support, thereby aligning the four corners of the plywood and avoiding unstable force during the extrusion process.

[0038] Furthermore, a heat dryer 304 is installed on the front side of the hot press chamber 1, and hot air nozzles 305 are provided on the inner wall of the hot press chamber 1. The heat dryer 304 and the hot air nozzles 305 are connected by a pipe. When the upper extrusion pressing plate 203 and the lower extrusion pressing plate 207 extrude the plywood in the hot press chamber 1, the heat dryer 304 is activated, and the hot air nozzles 305 spray hot air evenly to ensure that the plywood is heated evenly, accelerate the curing of the glue, and further improve the efficiency and quality of hot pressing.

[0039] Working principle: When needed, first place the hot press chamber 1 in the desired position. Then, the lower hydraulic pump rod 206 pushes the lower extrusion and pressing plate 207 upwards until it is flush with the surface of the hot press chamber 1. Next, place the plywood to be hot-pressed onto the lower extrusion and pressing plate 207. At this time, the polymerization hydraulic pump rods 302 at the four corners of the polymerization frame 301 simultaneously push the four corner clips 303 inwards, pressing and arranging the multi-layered plywood on the lower extrusion and pressing plate 207. After arranging, the lower extrusion and pressing plate 207... At this time, the upper hydraulic pump rod 202 in the upper frame 201 pushes the upper extrusion pressing plate 203 downward, and the lower extrusion pressing plate 207 is simultaneously extruded inward by the lower hydraulic pump rod 206. During this process, the soft rubber pad 204 will reduce the extrusion pressure. As the extrusion is carried out, the excess glue is squeezed out and flows into the glue tank 208. At the same time, the hot air heater 304 sprays hot air through the hot air nozzle 305 to carry out high-temperature baking. This completes the use process of a plywood hot pressing and shaping auxiliary equipment.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plywood hot pressing and shaping auxiliary device, comprising a hot pressing chamber (1), characterized in that: The hot press chamber (1) is provided with plywood pressure shaping components (2) on its upper and lower sides. The plywood pressure shaping components (2) include an upper frame (201) welded to the upper side of the hot press chamber (1). An upper hydraulic pump rod (202) is welded to the inner side of the top of the upper frame (201). An upper extrusion pressing plate (203) is welded to the lower end of the upper hydraulic pump rod (202). A lower frame (205) is welded to the lower side of the hot press chamber (1). The upper inner side of the lower frame (205) is... Each is welded with a lower hydraulic pump rod (206), and a lower extrusion pressing plate (207) is welded to the top of the lower hydraulic pump rod (206). A hot pressing shaping auxiliary component (3) is provided on the outside of the hot pressing chamber (1). The hot pressing shaping auxiliary component (3) includes a polymerization frame (301) installed on the outside of the upper frame (201). Polymerization hydraulic pump rods (302) are installed at both ends of the polymerization frame (301), and four corner clips (303) are installed at the ends of the polymerization hydraulic pump rods (302).

2. The plywood hot pressing and shaping auxiliary equipment according to claim 1, characterized in that, The upper hydraulic pump rod (202) and the lower hydraulic pump rod (206) are each provided with four sets. The upper hydraulic pump rod (202) and the lower hydraulic pump rod (206) drive the upper extrusion pressing plate (203) and the lower extrusion pressing plate (207) to rise and fall synchronously, respectively.

3. The plywood hot pressing and shaping auxiliary equipment according to claim 1, characterized in that, The diameters of the upper extrusion plate (203) and the lower extrusion plate (207) are smaller than the inner diameter of the hot press chamber (1). The upper extrusion plate (203) is located inside the hot press chamber (1) for a long time. The upper extrusion plate (203) and the lower extrusion plate (207) form a uniform pressure zone inside the hot press chamber (1).

4. The plywood hot pressing and shaping auxiliary equipment according to claim 1, characterized in that, The upper extrusion and pressing plate (203) has a soft rubber pad (204) bonded to its surface. The soft rubber pad (204) is made of hydrogenated nitrile rubber.

5. The plywood hot pressing and shaping auxiliary equipment according to claim 1, characterized in that, The upper surface of the lower extrusion and pressing plate (207) is provided with a polyurethane groove (208), which is a rectangular groove.

6. The plywood hot pressing and shaping auxiliary equipment according to claim 1, characterized in that, The polymerization frame (301) is symmetrically arranged on the left and right sides of the hot press chamber (1). The polymerization hydraulic pump rod (302) is located at both ends of the polymerization frame (301) and at the four corners of the hot press chamber (1). The corner clips (303) are welded to the ends of the polymerization hydraulic pump rods (302). The corner clips (303) retract inward synchronously through the polymerization hydraulic pump rods (302).

7. The plywood hot pressing and shaping auxiliary equipment according to claim 1, characterized in that, A heat dryer (304) is installed on the front side of the heat press chamber (1), and a heat drying air nozzle (305) is provided on the inner wall of the heat press chamber (1). The heat dryer (304) and the heat drying air nozzle (305) are connected by a pipe.

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