A press machine for skateboard production

Abstract

The utility model relates to a press for slide production, including lower mould frame and upper pressing plate, four heating pipe fittings evenly distribute in the four corners of lower mould frame, carry out heating to mould frame after electrification, make mould frame whole temperature even rise, the slide blank of processing, such as multilayer board or composite material, place on the mould frame, gradually heat up to predetermined forming temperature through heat conduction, make material soften and facilitate to press, hydraulic cylinder drives upper pressing plate to move down, under the accurate direction of guide column, exert high pressure to the slide blank on the mould frame, make it shape as slide under the joint action of heat and pressure, the heat lost of lower mould frame is absorbed by serpentine bending pipe, the air inlet fan inhales external air through dustproof filter plate, the air is heated when flowing through bending pipe, forms hot air, the hot air is shunted to the exhaust hole in the storage frame through the exhaust pipe, blows to the storage unprocessed slide evenly, the blank after preheating reduces thermal stress when subsequent pressing, improves forming quality.

Description

Technical Field

[0001] This utility model relates to the field of press technology, specifically a press for producing skateboards. Background Technology

[0002] In the production process of sheet metal, a press is usually used to hot press the sheet metal. In the existing technology, when the press heats the mold, a large amount of heat energy is lost through the mold frame, resulting in low energy utilization. The unprocessed sheet metal material needs to be preheated before pressing to reduce internal stress and improve molding quality. However, existing equipment often requires additional preheating devices, which increases equipment cost and energy consumption.

[0003] For example, the authorized patent document with application number CN202323290374.5 discloses a press for producing skateboards, which includes a base, a vertical frame on the base, a pressure drive assembly outside the vertical frame, fixed columns fixed at opposite ends on the surface of the base, and a trimming assembly outside the fixed columns. The trimming assembly includes a lower spring, which is fitted onto the lower end of the fixed column. A lower plate is slidably connected to the outside of the fixed column, an upper spring is fitted onto the outside of the fixed column, and an upper plate is slidably connected to the outside of the fixed column.

[0004] The aforementioned patent states that unprocessed skateboard materials need to be preheated before pressing to reduce internal stress and improve molding quality. However, existing equipment often requires additional preheating devices, which increases equipment costs and energy consumption. Therefore, we need to provide a press for skateboard production. Utility Model Content

[0005] The purpose of this invention is to provide a press for producing skateboards. It absorbs the heat lost from the mold frame through a serpentine pipe, converts cold air into hot air using an intake fan, and preheats the skateboards to be processed in the storage frame through the exhaust duct, thereby reducing energy waste. The storage frame and exhaust mechanism are integrated into the design, eliminating the need for additional preheating equipment, simplifying the process and reducing costs, and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a press for producing skateboards, comprising: Lower mold frame and upper pressure plate; The top of the lower mold frame is embedded with a mold frame for placing the slide plate to be pressed. The interior of the lower mold frame is provided with four heating pipes for heating the mold frame. The four heating pipes are evenly distributed at the four corners of the lower mold frame. The bottom of the lower mold frame is equipped with a waste heat utilization mechanism for preheating the slide plate to be processed.

[0007] Preferably, the waste heat utilization mechanism includes two serpentine curved pipes disposed within the lower mold frame. Each curved pipe has an air inlet and an air outlet at its two ends. The air outlet is connected to an exhaust assembly, and the air inlet is connected to an air inlet assembly.

[0008] Preferably, the air intake assembly includes a heat insulation pipe connected to the air intake end of the curved pipe, an air intake fan is connected to the bottom of the heat insulation pipe, and a dust filter plate is provided at the air intake of the air intake fan.

[0009] Preferably, the exhaust assembly includes an exhaust pipe connected to the exhaust end of the curved pipe, and several diversion frames are connected to both sides of the exhaust pipe. Each of the several diversion frames has multiple exhaust channels on one side. A storage frame is fixedly installed on the surface of each of the two exhaust pipes by a bracket. The storage frame is used to store the slide plate to be processed. The exhaust channels of the diversion frames face the inside of the storage frame. A cabinet door is hinged to the front of the storage frame.

[0010] Preferably, a reinforcing plate is fixedly installed on the surface of both curved pipes, and the reinforcing plate is welded between the inner wall of the lower mold frame and the bottom of the mold frame.

[0011] Preferably, all four heating elements are fixed to the inner wall of the lower mold frame by a support plate, and a heat-resistant insulating layer is provided between the support plate and the heating elements.

[0012] Preferably, a platform is fixedly installed between the bottom of the lower mold frame and the top of the storage frame, and a hydraulic cylinder is installed on the top of the platform through a frame, with the lower end of the piston rod of the hydraulic cylinder connected to the top of the upper pressure plate.

[0013] Preferably, guide posts are provided on both sides of the upper pressure plate, and the tops of the two guide posts extend through the frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention absorbs the heat lost from the lower mold frame through a serpentine curved pipe, and uses an intake fan to convert cold air into hot air, which is then used to preheat the slide plate to be processed in the storage frame through the exhaust duct, reducing energy waste. The storage frame and exhaust mechanism are integrated into the design, eliminating the need for additional preheating equipment, simplifying the process and reducing costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a perspective view of the waste heat utilization mechanism of this utility model; Figure 3 This is a perspective view of the air intake assembly of this utility model; Figure 4 This is an exploded perspective view of the diversion frame of this utility model.

[0016] In the diagram: 1. Lower mold frame; 2. Upper pressure plate; 3. Mold frame; 4. Heating pipe; 5. Waste heat utilization mechanism; 51. Bending pipe; 52. Air inlet; 53. Air outlet; 55. Exhaust assembly; 541. Heat insulation pipe; 542. Air intake fan; 543. Dust filter plate; 54. Air intake assembly; 551. Exhaust pipe; 552. Diverter frame; 553. Exhaust channel; 554. Storage frame; 6. Reinforcing plate; 7. Support plate; 8. Tabletop; 9. Frame; 10. Hydraulic cylinder; 11. Guide column. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a press for producing skateboards, comprising: Lower mold frame 1 and upper pressure plate 2; The top of the lower mold frame 1 is embedded with a mold rack 3 for placing the slide plate to be pressed. The interior of the lower mold frame 1 is provided with four heating pipes 4 for heating the mold rack 3. The four heating pipes 4 are evenly distributed at the four corners of the lower mold frame 1. The bottom of the lower mold frame 1 is provided with a waste heat utilization mechanism 5 for preheating the slide plate to be processed; Specifically, the heat lost from the lower mold frame 1 is absorbed by the serpentine bend pipe 51, and the cold air is converted into hot air by the intake fan 542. The hot air is then preheated in the storage frame 554 through the exhaust duct 553, reducing energy waste. The storage frame 554 is integrated with the exhaust mechanism, eliminating the need for additional preheating equipment, simplifying the process and reducing costs. The heating pipes 4 distributed at the four corners ensure uniform heating of the mold frame 3. The reinforcing plate 6 and the support plate 7 enhance the structural stability of the mold frame 3 and the pipes, extending the equipment life.

[0019] In this embodiment, four heating pipes 4 are evenly distributed at the four corners of the lower mold frame 1. After being energized, they heat the mold frame 3, causing the overall temperature of the mold frame 3 to rise uniformly. The slide blank to be processed, such as multi-layer wood or composite material, is placed on the mold frame 3 and gradually heated to the predetermined molding temperature through heat conduction, softening the material for easier pressing. The hydraulic cylinder 10 drives the upper pressure plate 2 to move downward. Under the precise guidance of the guide column 11, high pressure is applied to the slide blank on the mold frame 3, causing it to be shaped into a slide blank under the combined action of heat and pressure. The heat lost by the lower mold frame 1 is absorbed by the serpentine curved pipe 51. The intake fan 542 draws in external air through the dust filter plate 543. The air is heated as it flows through the curved pipe 51, forming hot air. The hot air is diverted through the exhaust pipe 551 to the exhaust duct 553 in the storage frame 554, and blown evenly onto the stored unprocessed slide blank, preheating it to 40~60°C. The preheated blank reduces thermal stress during subsequent pressing, improving the molding quality.

[0020] The waste heat utilization mechanism 5 includes two snake-shaped curved pipes 51 arranged in the lower mold frame 1. The two ends of the curved pipes 51 are respectively provided with an air inlet end 52 and an air outlet end 53. The air outlet end 53 is connected to an exhaust component 55, and the air inlet end 52 is connected to an air inlet component 54. Furthermore, during the heating process of the lower mold frame 1, some of the heat is conducted to the curved pipe 51. The intake fan 542 draws in external air, which flows through the heated pipe to form hot air. The hot air is diverted to the storage frame 554 through the exhaust pipe 551 and preheats the slide plate blank through the exhaust channel 553, reducing the energy consumption of subsequent pressing. The serpentine curved pipe 51 increases the contact area with the lower mold frame 1, fully absorbing the residual heat lost by the mold.

[0021] The air intake assembly 54 includes a heat insulation pipe 541 connected to the air intake end 52 of the curved pipe 51. The bottom of the heat insulation pipe 541 is connected to an air intake fan 542, and a dust filter plate 543 is provided at the air inlet of the air intake fan 542. It is worth noting that after the intake fan 542 is started, external air is drawn into the system through the dust filter plate 543. The filter plate blocks dust, debris and other impurities, ensuring that the air entering the pipe is clean. The air enters the curved pipe 51 through the heat insulation pipe 541, reducing the heat transfer to the intake fan 542. The dust filter plate 543 prevents impurities from clogging the pipe or contaminating the slide plate blank, reducing the maintenance frequency. Clean air reduces the accumulation of dust on the inner wall of the pipe. The heat insulation layer protects the fan from high temperature and reduces the failure rate. When the press is working continuously, the intake fan 542 draws in air at a constant air volume (e.g., 10 m³ / min). After being guided by the heat insulation pipe 541, the air stays in the curved pipe 51 for a longer time, fully absorbing the residual heat. Finally, the exhaust assembly 55 evenly preheats the slide plate blank in the storage frame 554, realizing the closed-loop utilization of energy.

[0022] The exhaust assembly 55 includes an exhaust pipe 551 connected to the exhaust end 53 of the curved pipe 51. Several diversion frames 552 are connected to both sides of the exhaust pipe 551. Multiple exhaust channels 553 are opened on one side of each of the diversion frames 552. Storage frames 554 are fixedly installed on the surface of each of the two exhaust pipes 551 by a bracket. The storage frames 554 are used to store the slides to be processed. The exhaust channels 553 of the diversion frames 552 face the inside of the storage frames 554. A cabinet door is hinged to the front of the storage frames 554. It should be noted that the hot air is evenly guided to the slide plate blank in the storage frame 554 through the diversion frame 552 and multiple exhaust channels 553, avoiding local overheating or insufficient preheating. The hot air enters the exhaust pipe 551 from the outlet 53 of the curved pipe 51 and is distributed by the diversion frame 552. The diversion frame 552 adopts a flow guiding structure to ensure that the hot air is evenly distributed to each exhaust channel 553. The multiple exhaust channels 553 are arranged at a specific angle and spacing to blow the hot air evenly to the slide plate blank in the storage frame 554. The channel design takes into account the airflow velocity and temperature distribution to ensure that the blank is heated evenly. The multi-channel diversion design increases the hot air coverage area. When the hot air enters the exhaust pipe 551, it is blown to the slide plate blank in the storage frame 554 at a speed of 0.5-1.2m / s through the guiding effect of the diversion frame 552. The hot air temperature is maintained at 40-60℃, which can effectively preheat the material without causing it to deform. Operators can take out and put in the billet at any time through the cabinet door, realizing continuous production.

[0023] Reinforcing plates 6 are fixedly installed on the surfaces of both curved pipes 51. The reinforcing plates 6 are welded between the inner wall of the lower mold frame 1 and the bottom of the mold frame 3. The reinforcing plate 6 is made of Q345 steel plate, and the curved pipe 51, the lower mold frame 1, and the mold frame 3 are connected into a whole through a full welding process. During the pressing process, the hydraulic pressure is evenly transmitted to the reinforcing plate 6 through the mold frame 3, and then distributed by the reinforcing plate 6 to the four support points of the lower mold frame 1, forming a stable force transmission path. The welded joint adopts a bevel design to ensure that the connection strength is not less than 90% of the base material.

[0024] All four heating elements 4 are fixed to the inner wall of the lower mold frame 1 by support plates 7, and a heat-resistant insulation layer is provided between the support plates 7 and the heating elements 4. Specifically, the support plate 7 is made of 304 stainless steel and is fixed to the preset installation position on the inner wall of the lower mold frame 1 by bolts. A 3mm thick ceramic fiber insulation layer is set between the heating pipe 4 and the support plate 7. The thermal conductivity of this material is only 0.05W / (m·K). During operation, the heat generated by the heating pipe 4 is blocked by the insulation layer, and only less than 1% of the heat is conducted to the support plate 7, ensuring that the frame temperature is controlled below 50℃.

[0025] A platform 8 is fixedly installed between the bottom of the lower mold frame 1 and the top of the storage frame 554. A hydraulic cylinder 10 is installed on the top of the platform 8 through a frame 9. The lower end of the piston rod of the hydraulic cylinder 10 is connected to the top of the upper pressure plate 2. Specifically, the slide plate to be processed is placed in the mold frame 3, and the hydraulic cylinder 10 is activated to drive the upper pressure plate 2 to move down into the mold frame 3 to stamp the slide plate.

[0026] Guide posts 11 are provided on both sides of the upper pressure plate 2, and the tops of the two guide posts 11 penetrate through the frame 9 and extend outwards. Furthermore, during pressing, the hydraulic cylinder 10 pushes the piston rod downward, and the guide column 11 is provided with a linear bearing in the frame 9 for the linear movement of the guide column 11. The frame 9 is provided with a sliding mechanism to ensure the vertical movement of the upper pressure plate 2.

[0027] The device has four heating tubes 4 evenly distributed at the four corners of the lower mold frame 1. After being powered on, the mold frame 3 is heated, causing the overall temperature of the mold frame 3 to rise evenly. The blank material to be processed, such as multi-layer wood board or composite material, is placed on the mold frame 3 and gradually heated to the predetermined molding temperature through heat conduction, softening the material for easier pressing. The hydraulic cylinder 10 drives the upper pressure plate 2 to move down. Under the precise guidance of the guide column 11, high pressure is applied to the blank material on the mold frame 3, so that it is shaped into a blank material under the combined action of heat and pressure. The heat lost by the lower mold frame 1 is absorbed by the serpentine curved pipe 51. The air intake fan 542 draws in external air through the dust filter plate 543. The air is heated when it flows through the curved pipe 51, forming hot air. The hot air is diverted through the exhaust pipe 551 to the exhaust duct 553 in the storage frame 554 and blown evenly onto the stored unprocessed blank material. The preheated blank material reduces thermal stress during subsequent pressing and improves the molding quality.

[0028] 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 press for producing skateboards, characterized in that, include: Lower mold frame (1) and upper pressure plate (2); The top of the lower mold frame (1) is embedded with a mold frame (3) for placing the slide plate to be pressed. The interior of the lower mold frame (1) is provided with four heating pipes (4) for heating the mold frame (3). The four heating pipes (4) are evenly distributed at the four corners of the lower mold frame (1). The bottom of the lower mold frame (1) is provided with a waste heat utilization mechanism (5) for preheating the slide plate to be processed.

2. The press for producing skateboards according to claim 1, characterized in that: The waste heat utilization mechanism (5) includes two snake-shaped curved pipes (51) arranged in the lower mold frame (1). The two ends of the curved pipes (51) are respectively provided with an air inlet (52) and an air outlet (53). The air outlet (53) is connected to an exhaust assembly (55), and the air inlet (52) is connected to an air inlet assembly (54).

3. A press for producing skateboards according to claim 2, characterized in that: The air intake assembly (54) includes a heat insulation pipe (541) connected to the air intake end (52) of the curved pipe (51), and an air intake fan (542) is connected to the bottom of the heat insulation pipe (541). A dust filter plate (543) is provided at the air inlet of the air intake fan (542).

4. A press for producing skateboards according to claim 2, characterized in that: The exhaust assembly (55) includes an exhaust pipe (551) connected to the exhaust end (53) of the curved pipe (51). Several diversion frames (552) are connected to both sides of the exhaust pipe (551). Multiple exhaust channels (553) are opened on one side of each of the diversion frames (552). Storage frames (554) are fixedly installed on the surface of each of the two exhaust pipes (551) by a bracket. The storage frame (554) is used to store the slide to be processed. The exhaust channels (553) of the diversion frame (552) face the inside of the storage frame (554). A cabinet door is hinged to the front of the storage frame (554).

5. A press for producing skateboards according to claim 4, characterized in that: The surfaces of the two curved pipes (51) are fixedly fitted with reinforcing plates (6), which are welded between the inner wall of the lower mold frame (1) and the bottom of the mold frame (3).

6. A press for producing skateboards according to claim 1, characterized in that: All four heating tubes (4) are fixed to the inner wall of the lower mold frame (1) by a support plate (7), and a heat-resistant insulation layer is provided between the support plate (7) and the heating tubes (4).

7. A press for producing skateboards according to claim 4, characterized in that: A platform (8) is fixedly installed between the bottom of the lower mold frame (1) and the top of the storage frame (554). A hydraulic cylinder (10) is installed on the top of the platform (8) through a frame (9). The lower end of the piston rod of the hydraulic cylinder (10) is connected to the top of the upper pressure plate (2).

8. A press for producing skateboards according to claim 7, characterized in that: Guide posts (11) are provided on both sides of the upper pressure plate (2), and the tops of the two guide posts (11) extend through the frame (9).

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