CN210652244U

CN210652244U - Preheating type hot press

Info

Publication number: CN210652244U
Application number: CN201921500892.6U
Authority: CN
Inventors: 闫刚
Original assignee: Qingdao Huabo Machinery Technology Co Ltd
Current assignee: Qingdao Huabo Machinery Technology Co Ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-06-02
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a preheating-type hot press, including the frame, install mould, lower mould in the frame, go up mould, lower mould and have heating device in the middle of both at least one of them, lower mould and frame relatively fixed, go up the top that the mould is located the lower mould, be equipped with in the frame and be used for ordering about the last mould drive arrangement who goes up and down, characterized by the position that lies in the lower mould rear in the frame is equipped with the preheating chamber, and both ends are equipped with work piece export, work piece entry respectively around the preheating chamber, and work piece export is equipped with the conveying roller group that is used for carrying the work piece on to the lower mould towards the lower mould in the preheating chamber, and a plurality of spaced conveying rollers have the driven around carrying the. The utility model discloses can be defeated to the lower mould with the work piece to can preheat the work piece at the in-process of carrying and make it reach certain temperature, the time of reducible hot pressing improves production efficiency from this.

Description

Preheating type hot press

Technical Field

The utility model relates to a preheating type hot press.

Background

A hot press is a mechanical device widely used in industrial production, which can combine two or more layers of materials by heating and pressing them together, and is used for producing composite materials, flat plate members, etc.

Generally, a hot press includes two hot pressing dies opposite to each other, wherein the hot pressing die located below is fixed, the hot pressing die located above can move up and down under the driving of a power device, the hot pressing dies have a heating function, and after a workpiece is placed between the two hot pressing dies, the hot pressing die located above heats and applies pressure to the workpiece, thereby completing the processing of the workpiece.

The temperature is lower in winter, and in addition, the workpiece is cold, the temperature requirement of hot pressing and shaping can be met only after long-time heating, so that the hot pressing time needs to be increased, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem provide a preheating-type hot press, can preheat the work piece before the hot pressing to reduce hot pressing time, improve work efficiency.

For reaching the above-mentioned purpose, the utility model discloses a frame, install mould, lower mould in the frame, go up mould, lower mould and have heating device in the middle of both at least one of them, lower mould and frame relatively fixed, go up the mould and be located the top of lower mould, be equipped with in the frame and be used for ordering about the last mould drive arrangement who goes up and down, characterized by the position that lies in the lower mould rear in the frame is equipped with the preheating chamber, and both ends are equipped with work piece export, work piece entry respectively around the preheating chamber, and work piece export is equipped with the transport roller set that is used for carrying the work piece on to the lower mould towards the lower mould in the preheating chamber, and transport roller set includes that the spaced a plurality of have driven conveying rollers. The working process of the preheating type hot press is as follows: and conveying the workpiece into the preheating chamber from the workpiece inlet, conveying the workpiece forwards by the conveying roller group, conveying the workpiece to the lower die from the workpiece outlet, carrying out hot pressing on the workpiece after the upper die is lowered, and taking out the workpiece after the upper die is raised. During the conveying process of the workpiece in the preheating chamber, the workpiece is preheated by the heater to reach a certain temperature, so that the hot pressing time can be reduced, and the production efficiency is improved.

The preheating chamber is provided with an ejecting block capable of moving back and forth and an ejecting block driving device used for driving the ejecting block to move, the front side of the ejecting block is hinged with a shifting block with the lower end capable of swinging back and forth, and the lower end of the shifting block is longer than the lower end face of the ejecting block and is higher than the upper surface of the conveying roller. In the process of conveying the workpiece, the rear end of the workpiece can not move forwards continuously after leaving the conveying roller positioned at the forefront, so that the workpiece needs to be moved forwards manually and is completely positioned on the lower die, the workpiece is preheated, the temperature of the workpiece is high, the movement is inconvenient, the problem is solved through the improvement, and the working mode is as follows: when a worker passes through the conveying roller group, the lower end of the shifting block can freely swing forwards, and the workpiece cannot be blocked; when the workpiece leaves the conveying roller group, the shifting block naturally droops, the shifting block blocked by the top block cannot swing backwards after drooping, and the shifting block can push the workpiece forwards when the top block is driven by the top block driving device to move forwards, so that the workpiece is in place.

The ejector block driving device comprises a driving oil cylinder arranged on the top wall of the preheating chamber, a piston rod of the driving oil cylinder extends forwards, and the ejector block is fixed at the front end of the piston rod. The driving oil cylinder is convenient to control, and the stroke of the ejector block is relatively stable.

The heater comprises a heat conduction strip extending left and right, a heat dissipation surface is arranged at the top of the heat conduction strip, a mounting hole extending along the length direction of the heat conduction strip is formed in the heat conduction strip, and an electric heating pipe is installed in the mounting hole.

The electric heating pipe is positioned in the heat conducting strip, so that the safety is realized; the radiating surface can fully radiate heat, and the heating effect of the workpiece is better.

The rack comprises a bottom plate, a support frame is arranged at the front part of the bottom plate, a top plate is arranged at the top of the support frame, an upper die and a lower die are arranged in a space between the top plate and the bottom plate, the lower die is fixed on the bottom plate, and the preheating chamber is arranged at the position, behind the lower die, on the bottom plate. The preheating chamber and the lower die are both located on the bottom plate, so that the structure of the whole hot press is more integrated and simplified, the position adjustment of the conveying roller set is facilitated, the position of the conveying roller set is better corresponding to that of the lower die, and the conveying of workpieces is smoother.

The upper die driving device comprises a pressure oil cylinder installed on the top plate, a piston rod of the pressure oil cylinder extends downwards, and the top surface of the upper die is connected with the piston rod. The pressure oil cylinder drives the upper die to lift, so that larger pressure can be provided, and the control is also more convenient.

To sum up, the utility model discloses can be defeated to the lower mould with the work piece to can preheat the work piece at the in-process of carrying and make it reach certain temperature, the time of reducible hot pressing improves production efficiency from this.

Drawings

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of another usage state of the present invention.

Detailed Description

Referring to the attached drawings, the preheating type hot press comprises a rack 1, wherein an upper die 2 and a lower die 3 are installed on the rack 1, at least one of the upper die 2 and the lower die 3 is provided with a heating device, the lower die 3 and the rack 1 are relatively fixed, the upper die 2 is positioned above the lower die 3, the rack 1 is provided with an upper die driving device for driving the upper die 2 to lift, and the preheating type hot press is characterized in that a preheating chamber 4 is arranged at the position, behind the lower die 3, of the rack 1, a workpiece outlet 5 and a workpiece inlet 6 are respectively arranged at the front end and the rear end of the preheating chamber 4, the workpiece outlet 5 faces the lower die 3, a conveying roller set for conveying workpieces to the lower die 3 is arranged in the preheating chamber 4, the conveying roller set comprises a plurality of conveying rollers 7 which are driven and are arranged at intervals in. At least one of the upper die 2 and the lower die 3 has a heating device to provide heating function, and the heating device may be an electric heating tube installed on the upper die 2 or the lower die 3, or a heat exchanger installed in the upper die 2 or the lower die 3, or another structure capable of heating the body of the upper die 2 or the lower die 3. The working process of the preheating type hot press is as follows: the workpiece is sent into the preheating chamber 4 from a workpiece inlet 6, the workpiece is conveyed forwards by the conveying roller group, the workpiece is sent to the lower die 3 from a workpiece outlet 5, the upper die 2 is lowered to carry out hot pressing on the workpiece, and the upper die 2 is raised to take out the workpiece. During the process of conveying the workpiece in the preheating chamber 4, the workpiece is preheated by the heater 8 to reach a certain temperature, so that the hot-pressing time can be reduced, and the production efficiency is improved.

The preheating chamber 4 is provided with a top block 9 capable of moving back and forth and a top block driving device for driving the top block 9 to move, the front side of the top block 9 is hinged with a shifting block 10 with the lower end capable of swinging back and forth, and the lower end of the shifting block 10 is longer than the lower end surface of the top block 9 and is higher than the upper surface of the conveying roller 7. In the process of conveying the workpiece, after the rear end of the workpiece leaves the conveying roller 7 positioned at the forefront, the workpiece cannot move forwards continuously, so that the workpiece needs to be moved forwards manually and is completely positioned on the lower die 3, the workpiece is preheated, the temperature of the workpiece is high, and the workpiece is inconvenient to move, and the problem is solved through the improvement, and the working mode is as follows: when a worker passes through the conveying roller group, the lower end of the shifting block 10 can freely swing forwards, and a workpiece cannot be blocked; when the workpiece leaves the conveying roller group, the shifting block 10 naturally droops, the shifting block 10 blocked by the top block 9 cannot swing backwards after drooping, and the shifting block 10 can push the workpiece forwards when the top block driving device drives the top block 9 to move forwards, so that the workpiece is in place.

The top block driving device comprises a driving oil cylinder 11 arranged on the top wall of the preheating chamber 4, a piston rod of the driving oil cylinder 11 extends forwards, and the top block 9 is fixed at the front end of the piston rod. The driving oil cylinder 11 is convenient to control, and the stroke of the top block 9 is relatively stable.

The heater 8 comprises a heat conducting strip 12 extending left and right, the top of the heat conducting strip 12 is provided with a heat radiating surface 13, the heat conducting strip 12 is provided with a mounting hole 14 extending along the length direction, and an electric heating pipe 15 is arranged in the mounting hole 14. The electric heating tube 15 is positioned in the heat conducting strip 12, so that the safety is high; the heat dissipation surface 13 can fully dissipate heat, and the heating effect of the workpiece is better.

The rack 1 comprises a bottom plate 16, a support frame 17 is arranged at the front part of the bottom plate 16, a top plate 18 is arranged at the top part of the support frame 17, the upper die 2 and the lower die 3 are arranged in a space between the top plate 18 and the bottom plate 16, the lower die 3 is fixed on the bottom plate 16, and the preheating chamber 4 is arranged on the bottom plate 16 and is positioned behind the lower die 3. Preheating chamber 4 and lower mould 3 all are located bottom plate 16 for the structure of whole hot press is more integrated and simplified, also makes things convenient for the position control of conveying roller set simultaneously, makes its better correspondence with the position of lower mould 3, makes the transport of work piece more smooth and easy.

The upper die driving device comprises a pressure oil cylinder 19 arranged on the top plate 18, a piston rod of the pressure oil cylinder 19 extends downwards, and the top surface of the upper die 2 is connected with the piston rod. The pressure oil cylinder 19 drives the upper die 2 to lift, so that larger pressure can be provided, and the control is also more convenient.

To sum up, the present invention is not limited to the above-mentioned specific embodiments. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications are intended to be within the scope of the present invention.

Claims

1. A preheating type hot press comprises a rack (1) and is characterized in that an upper die (2) and a lower die (3) are mounted on the rack (1), at least one of the upper die (2) and the lower die (3) is provided with a heating device, the lower die (3) and the rack (1) are fixed relatively, the upper die (2) is positioned above the lower die (3), an upper die driving device for driving the upper die (2) to lift is arranged on the rack (1), the preheating chamber (4) is arranged at the rear part of the lower die (3) on the rack (1), a workpiece outlet (5) and a workpiece inlet (6) are respectively arranged at the front end and the rear end of the preheating chamber (4), the workpiece outlet (5) faces the lower die (3), a conveying roller set for conveying workpieces to the lower die (3) is arranged in the preheating chamber (4), and comprises a plurality of conveying rollers (7) which are spaced front, a plurality of heaters (8) are arranged in the preheating chamber (4) at intervals in the front and back direction, and conveying rollers (7) and the heaters (8) are arranged at intervals.

2. A preheating press according to claim 1, characterized in that the preheating chamber (4) is provided, above the set of conveyor rolls, with a top block (9) which can be moved back and forth and a top block drive for driving the top block (9) in motion, the front side of the top block (9) being hinged with a pusher (10) whose lower end can be swung back and forth, the lower end of the pusher (10) being longer than the lower end surface of the top block (9) and higher than the upper surface of the conveyor rolls (7).

3. A preheating press according to claim 2, characterized in that the top block drive comprises a drive cylinder (11) mounted on the top wall of the preheating chamber (4), the piston rod of the drive cylinder (11) extending forwardly, the top block (9) being fixed to the front end of the piston rod.

4. A preheating press according to claim 1, characterized in that the heater (8) comprises a heat conducting strip (12) extending from side to side, the heat conducting strip (12) having a heat dissipating surface (13) at the top, the heat conducting strip (12) being provided with a mounting hole (14) extending along its length, the mounting hole (14) being provided with an electric heating tube (15).

5. A preheating press according to any of claims 1-4, characterized in that the frame (1) comprises a bottom plate (16), that a support frame (17) is arranged in front of the bottom plate (16), that a top plate (18) is arranged on top of the support frame (17), that the upper die (2) and the lower die (3) are arranged in the space between the top plate (18) and the bottom plate (16), that the lower die (3) is fixed to the bottom plate (16), and that the preheating chamber (4) is arranged on the bottom plate (16) at a position behind the lower die (3).

6. A preheating hot press according to claim 5, characterized in that the upper die drive comprises a pressure cylinder (19) mounted on the top plate (18), the piston rod of the pressure cylinder (19) projecting downwards, the top surface of the upper die (2) being connected to the piston rod.