阅读说明：本技术 一种冷压机用自定位速冷结构 (Self-positioning quick-cooling structure for cold press ) 是由 段克波 于 2020-06-07 设计创作，主要内容包括：本发明公开了一种冷压机用自定位速冷结构,包括外架和多个油缸,多个所述油缸中均连接有一个液压升降杆,多个所述液压升降杆共同连接有压板,所述外架正对压板的部分设有固定平台,所述固定平台中连接有固定结构,所述固定结构包括开设在固定平台中的环形通道,所述环形通道的另一侧贯通设有开设在外架内壁的负压腔,所述负压腔中密封滑动连接有密封板,优点在于：本发明中,通过负压槽的真空作用,使得对固定平台上位于底层的板体进行定位加固作用,使得在压板下移时发生振动不会发生移位现象,从而避免二次调整板体位置,并且在磁热效应的作用下,对待加工板体的速冷吸热,避免局部过热。(The invention discloses a self-positioning quick-cooling structure for a cold press, which comprises an outer frame and a plurality of oil cylinders, wherein a hydraulic lifting rod is connected in each oil cylinder, the hydraulic lifting rods are connected with a pressing plate together, a fixing platform is arranged on the part of the outer frame, which is opposite to the pressing plate, a fixing structure is connected in the fixing platform, the fixing structure comprises an annular channel arranged in the fixing platform, the other side of the annular channel is provided with a negative pressure cavity arranged on the inner wall of the outer frame in a penetrating manner, and a sealing plate is connected in the negative pressure cavity in a sealing and sliding manner, so that the self-positioning quick-cooling structure has the advantages: according to the invention, the plate body positioned at the bottom layer on the fixed platform is positioned and reinforced under the vacuum action of the negative pressure groove, so that the plate body does not shift when vibrating when moving downwards, the position of the plate body is prevented from being adjusted for the second time, and the plate body to be processed absorbs heat during rapid cooling under the action of the magnetic thermal effect, so that local overheating is prevented.)

1. A self-positioning quick-cooling structure for a cold press comprises an outer frame (1) and a plurality of oil cylinders (2), and is characterized in that a hydraulic lifting rod (3) is connected to each of the oil cylinders (2), the hydraulic lifting rods (3) are jointly connected with a pressing plate (4), a fixing platform (5) is arranged on a part, opposite to the pressing plate (4), of the outer frame (1), and a fixing structure is connected to the fixing platform (5);

the fixing structure comprises an annular channel (6) arranged in a fixing platform (5), a negative pressure cavity (7) arranged on the inner wall of the outer frame (1) is arranged on the other side of the annular channel (6) in a penetrating mode, a sealing plate (8) is connected in the negative pressure cavity (7) in a sealing and sliding mode, a plurality of conductive springs (9) are fixedly connected to the bottom of the sealing plate (8), and the conductive springs (9) are electrically connected with the hydraulic lifting rod (3);

the two sides of the annular channel (6) are provided with limiting cavities (10), magnetorheological fluid is arranged in the limiting cavities (10), the outer sides of the limiting cavities (10) are hermetically connected with permeable membranes (11), the limiting cavities (10) are hermetically and slidably connected with gel membranes (12), and electromagnets (13) are fixedly connected below the gel membranes (12).

2. The self-positioning quick-cooling structure for the cold press is characterized in that the outer frame (1) is provided with resistance layers (14) on two sides of the hydraulic lifting rod (3), the resistance layers (14) are electrically connected with the electromagnet (13) and the conductive spring (9), and the resistance layers (14) are connected with an external power supply device.

3. The self-positioning quick-cooling structure for the cold press is characterized in that the side wall of the limiting cavity (10) is hermetically connected with an air inlet channel (15), the other end of the air inlet channel (15) is connected with an air cylinder (16) arranged in the negative pressure cavity (7) through a one-way valve, a valve rod part of the air cylinder (16) is fixedly connected with the bottom of the sealing plate (8), and the gel film (12) is made of an intelligent polymer gel material.

Technical Field

The invention relates to the technical field of cold presses, in particular to a self-positioning quick-cooling structure for a cold press.

Background

The cold press is a pressure device for bonding plate furniture and veneering with artificial board and pressing at normal temperature, and has the working principle that under the action of a hydraulic system of the cold press, a press plate is driven to move downwards by a hydraulic cylinder so as to press and process a wood board blank fixed on a fixed table.

However, when the wood plates are processed by the cold press in the prior art, pressure operation is often required to be carried out on the two layers of wood plates, the wood plates located at the bottom layer are directly placed on the working platform, the plane of the working platform is smooth, so that after long-term use, the working platform can shake to a certain extent when the pressing plate descends, the two layers of plate bodies can shift to a certain extent by the aid of the working platform with the smooth plane, the lower layer of plate body is not easy to reposition at the moment, edges of processed adhesion products are not parallel and level enough, and based on the self-positioning quick cooling structure for the cold press, the self-positioning quick cooling structure for the cold press is designed.

Disclosure of Invention

The invention aims to solve the problem that the edge of a cold press is easy to be uneven when the cold press processes a multilayer plate body in the prior art, so that the processing effect is influenced, and provides a self-positioning quick-cooling structure for the cold press.

In order to achieve the purpose, the invention adopts the following technical scheme: a self-positioning quick-cooling structure for a cold press comprises an outer frame and a plurality of oil cylinders, wherein a hydraulic lifting rod is connected in each oil cylinder, the hydraulic lifting rods are connected with a pressing plate together, a fixing platform is arranged on the part, opposite to the pressing plate, of the outer frame, and a fixing structure is connected in the fixing platform;

the fixing structure comprises an annular channel arranged in the fixing platform, a negative pressure cavity arranged on the inner wall of the outer frame is arranged on the other side of the annular channel in a penetrating manner, a sealing plate is connected in the negative pressure cavity in a sealing and sliding manner, a plurality of conductive springs are fixedly connected to the bottom of the sealing plate, and the conductive springs are electrically connected with the hydraulic lifting rod;

the both sides of annular channel are equipped with spacing chamber, the magnetorheological suspensions are equipped with in the spacing intracavity, the outside sealing connection in spacing chamber has the osmotic membrane, sealed sliding connection has the gel membrane in the spacing chamber, gel membrane below fixedly connected with electro-magnet.

In the self-positioning quick-cooling structure for the cold press, the outer frame is provided with the resistance layers on two sides of the hydraulic lifting rod, the resistance layers are electrically connected with the electromagnet and the conductive spring, and the resistance layers are connected with an external power supply device.

In above-mentioned cold press is with quick cold structure of self-align, the lateral wall sealing connection in spacing chamber has inlet channel, inlet channel's the other end is connected with the inflator of setting in the negative pressure chamber through the check valve, the valve rod part of inflator and the bottom fixed connection of closing plate, the gel membrane adopts intelligent polymer gel material.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the plate body positioned at the bottom layer on the fixed platform is positioned and reinforced through the vacuum action of the negative pressure groove, so that the plate body does not shift when vibrating when moving downwards, and the position of the plate body is prevented from being adjusted for the second time;

2. the wood board is rough in surface and not easy to seal, so that the wood board cannot be fixed only by the fixing platform in the prior art, and in the invention, the space between the wood boards is filled by the magnetorheological fluid of the liquid after the wood board is placed on the fixing platform by virtue of the liquid characteristic of the magnetorheological fluid under the action of no magnetic field, so that the limit cavity and the outside are well sealed, and at the moment, the negative pressure condition is formed by enabling the negative pressure cavity to be close to one side of the processing board body by virtue of the vertical sliding of the sealing plate, so that the bottom board body is firmly fixed on the fixing platform under the action of the external atmospheric pressure, and the sliding or the dislocation is avoided;

3. the sealing plate is connected with the conductive spring, the conductive spring is in a compressed state at the initial stage, and when the pressing plate descends, the sealing plate is in mutual contact with the resistance layers on the two sides, so that the electric quantity of the conductive spring is changed from small to large, the shrinkage of the conductive spring is gradually increased in the falling process, and when the pressing plate processes the plate body, the shrinkage of the conductive spring is the largest, so that the bottom plate body is fixed to the maximum extent;

4. during actual processing, when the pressing plate falls down, and at the moment, the air cylinder applies pressure to the lower part of the gel membrane to enable the liquid in the limiting cavity to seep outwards, at the moment, the liquid magnetorheological fluid is adhered to a gap at the bottom of the wood board to be processed and fills the gap, as the circuit current connected with the electromagnet is gradually increased, the magnetic force generated by the electromagnet on the magnetorheological fluid is increased, the liquid magnetorheological fluid is converted into a solid to form a sealed and solidified state, and the part permeating the permeable membrane cannot flow back to the limiting cavity, so that a stable sealing environment is formed, and the stability of the bottom-layer board to be processed is improved;

5. after finishing cold pressing, the pressing plate gradually moves upwards, and the current carried by the conductive spring is gradually reduced, so that the magnetorheological fluid is converted from a solid state into a liquid state, the magnetorheological fluid tends to contract the permeable membrane in the liquid state, the gel membrane is arranged, the pressing plate is closed to form a sealed environment in the upward movement process, the air cylinder is compressed when the sealing plate moves downwards, the limiting cavity is positioned below the gel membrane to be inflated, the gel membrane is lifted, part of the magnetorheological fluid is driven to seep out of the permeable membrane, when the pressing plate is lifted, the air cylinder exhausts air to the limiting cavity, the gel membrane moves downwards, the part of the magnetorheological fluid positioned on the outer side is recycled and contracted and leaks into the permeable membrane again, and under the action of air leakage, the fixing of the wood plate is rapidly released by external atmospheric pressure, and the processed.

6. When the clamp plate whereabouts, the resistance value of the resistance layer of intercommunication is by big reduction for the magnetization effect that the electro-magnet produced to the magnetizer crescent, such benefit lies in, when the clamp plate whereabouts gradually, treats that the plate body of processing carries out the isothermal heat transfer process, has played the preheating effect, and after finishing processing, the quick demagnetization of magneto-rheological fluid after the electro-magnet outage, then carries out the rapid cooling heat absorption to the plate body after processing, then avoids under the too big condition of extrusion force, treats the local overheated state of processing plank.

Drawings

Fig. 1 is a schematic structural diagram of a self-positioning quick-cooling structure for a cold press according to the present invention;

fig. 2 is an enlarged schematic view of a part a in a self-positioning quick-cooling structure for a cold press according to the present invention.

In the figure: the device comprises an outer frame 1, an oil cylinder 2, a hydraulic lifting rod 3, a pressure plate 4, a fixed platform 5, an annular channel 6, a negative pressure cavity 7, a sealing plate 8, a conductive spring 9, a limiting cavity 10, a permeable membrane 11, a gel membrane 12, an electromagnet 13, a resistance layer 14, an air inlet channel 15 and an air cylinder 16.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.