CN213354518U - Metal mask frame processing station conversion transport vechicle - Google Patents

Abstract

The utility model discloses a metal mask frame processing station conversion transport vechicle belongs to product transportation equipment field. The utility model discloses a transport vechicle is equipped with temperature control system in the box, and temperature control system comprises electric heating unit and small-size refrigeration unit, utilizes temperature sensor real-time supervision each layer plywood department temperature, controls temperature control system and heats or refrigerates after the temperature surpasss controller and sets for the threshold interval for keep stable temperature in the box of transport vechicle, prevent that the metal mask frame from appearing temperature variation great and arousing the product deformation in the transportation; in addition, the electric heating unit and the small refrigerating unit are reasonably arranged in the transport vehicle, the temperature of the laminate is uniformly controlled, the Joule-Thomson refrigerating effect is adopted for refrigerating, the structure is simple and compact, the size is small, the refrigerating is quick, and the energy consumption requirement is low; meanwhile, the transport vehicle adopts the combined design of universal wheels and directional wheels, so that the stability and reliability of multi-station transfer of the metal mask frame are improved.

Description

Metal mask frame processing station conversion transport vechicle

Technical Field

The utility model relates to a part carrier, more specifically say, relate to a metal mask frame processing station conversion transport vechicle.

Background

Metal Mask frames (Mask frames) are a type of metal outer Frame that is commonly provided with a top high precision grinding surface, a notch, a large slope, a shallow groove and an inclined light-transmitting hole, and are mainly used for fixing an extremely thin film to form a surface with dense small holes so as to form the positions of pixel points during evaporation. Therefore, the requirements for various sizes of the metal mask frame are high.

Owing to the technical improvement of various processing machines in recent years, the accuracy of the corresponding metal mask frame is also ensured reliably. The machining process of the metal mask frame is mainly carried out in various grinding machines and milling machines, and the machining process also comprises ultrasonic cleaning and other processes. Therefore, in the production process of the metal mask frame, the metal mask frame needs to be transferred among different stations. According to the processing demand, metal mask frame need use transfer device at the in-process that shifts, but current transfer device majority only carries out the function of a delivery to the product, when shifting in different processing workshops, because indoor outer difference in temperature is great, this in-process metal mask frame often can receive temperature variation's influence and produce certain deformation, to the very high metal mask frame of machining precision requirement, this must influence its machining precision, increased the degree of difficulty for subsequent processing. Moreover, the shaking generated in the transferring process of the metal mask frame can easily cause scratches or collisions on the metal mask frame, thereby affecting the product precision of the metal mask frame.

Based on the above-mentioned problem that current metal mask frame's transfer device exists, need urgently to design a transport vechicle that has the constant temperature control function, moves that stability and reliability is high to satisfy the needs of the processing station conversion of metal mask frame.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to overcome the problem that the metal mask frame is easy to deform to influence the control of the subsequent processing precision due to the temperature change when the transfer device of the existing metal mask frame transfers and transports at multiple stations, and provides a metal mask frame processing station conversion transport cart, which adopts the technical scheme of the utility model.A temperature control system is arranged in a box body, the temperature control system consists of an electric heating unit and a small refrigeration unit, the temperature sensor is utilized to monitor the temperature of each layer of laminate in real time, and the electric heating unit or the small refrigeration unit is controlled to heat or refrigerate after the temperature exceeds the set threshold interval of a controller, so that the stable temperature is maintained in the box body of the transport cart, the metal mask frame is prevented from generating great temperature change in the transferring process to cause the deformation of products, and the processing precision of the metal mask frame is improved; in addition, the electric heating unit and the small refrigerating unit are reasonably arranged in the transport vehicle, the temperature of the laminate is uniformly controlled, the Joule-Thomson refrigerating effect is adopted for refrigerating, the structure is simple and compact, the size is small, the refrigerating is quick, and the energy consumption requirement is low; meanwhile, the front wheels of the transport vehicle are universal wheels, the rear wheels of the transport vehicle are directional wheels, the transport vehicle is stable and reliable in movement and small in shaking, scratches or collision of the metal mask frame caused by excessive steering shaking generated in the moving process are not prone to occurring, and the multi-station transferring stability and reliability of the metal mask frame are improved.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a metal mask frame processing station conversion transport vechicle, including the box, the box in the level be equipped with a plurality of layers be used for bearing the plywood of metal mask frame, the bottom of box be equipped with the truckle that is used for the walking to remove, the box in be equipped with temperature control system, temperature control system include battery, controller, electrothermal heating pipe, miniature refrigeration compressor, heat exchanger, choke valve, heat pipe and temperature sensor, electrothermal heating pipe and heat pipe lay respectively in each layer plywood, the battery pass through the controller respectively with electrothermal heating pipe, miniature refrigeration compressor electricity be connected, miniature refrigeration compressor's the end of giving vent to anger be connected with the inner tube inlet end of heat exchanger, the end of giving vent to anger of inner tube be connected with the air inlet of corresponding heat pipe through the choke valve respectively, the return-air mouth of heat pipe pass through the pipeline and be connected with the jacket inlet end of heat exchanger, the air outlet end of the outer jacket is connected with the air inlet end of the micro refrigeration compressor, the temperature sensor is arranged at each layer of laminate, and the temperature sensor is electrically connected with the controller through a lead.

Furthermore, the electric heating pipes on the laminates of each layer are connected in parallel through leads; and heat conduction pipes on the laminates of all layers are connected in parallel through pipelines, and a throttle valve is arranged at the air inlet end of each heat conduction pipe.

Furthermore, the electric heating pipe comprises a heating wire and an insulating pipe, and the insulating pipe is sleeved outside the heating wire.

Furthermore, a plurality of fins are arranged on the outer wall of the inner pipe of the heat exchanger.

Furthermore, the electric heating pipes are paved on each layer of laminate in an S-shaped structure.

Furthermore, the heat conduction pipes are laid on each layer of laminate by adopting a spiral coil structure.

Furthermore, the truckles of bottom half be equipped with 4, and locate four angles departments of bottom half respectively, wherein two front wheels are the universal wheel, two rear wheels are directional wheel.

Furthermore, the upper surface of the laminate is also provided with a soft wrapping layer.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a metal mask frame processing station conversion transport vechicle, it is equipped with temperature control system in the box, temperature control system comprises electric heating unit and small-size refrigeration unit, utilizes temperature sensor real-time supervision each layer plywood department temperature, controls electric heating unit or small-size refrigeration unit to heat or refrigerate after the temperature surpasses controller settlement threshold interval for the stable temperature is maintained in the box of transport vechicle, prevent that metal mask frame from appearing temperature variation great and arousing the product deformation in the transportation, improved the machining precision of metal mask frame; in addition, the electric heating unit and the small refrigerating unit are reasonably arranged in the transport vehicle, the temperature of the laminate is uniformly controlled, the Joule-Thomson refrigerating effect is adopted for refrigerating, the structure is simple and compact, the size is small, the refrigerating is quick, and the energy consumption requirement is low;

(2) the utility model discloses a metal mask frame processing station conversion transport vechicle, the electric heat heating pipe on each layer plywood of its connects in parallel through the wire, and the heat conduction pipe on each layer plywood connects in parallel through the pipeline, and the inlet end of every heat conduction pipe all is equipped with the choke valve, makes the electric heat heating pipe and the refrigeration heat conduction pipe on each layer plywood independent each other, can not influence the normal temperature control of other layers because of certain layer heating or refrigeration inefficacy;

(3) the utility model discloses a metal mask frame processing station conversion transport vechicle, its electric heat heating pipe includes heating wire and insulating tube, and the insulating tube is located the outside of heating wire, utilizes the insulating tube to wrap up the heating wire, has effectively avoided the condition that the electric leakage appears when using, uses safelyr;

(4) the utility model discloses a metal mask frame processing station conversion transport vechicle, still be equipped with a plurality of fins on its heat exchanger's inner tube outer wall for heat exchange efficiency is higher between heat exchanger inner tube and the outer jacket, has further improved the refrigeration efficiency of small-size refrigeration unit;

(5) the utility model discloses a metal mask frame processing station conversion transport vechicle, its electric heat heating pipe all adopts "S" shape structure to lay on each layer plywood, and the heat pipe all adopts spiral coil pipe structure to lay on each layer plywood, and heating and refrigeration are more even, have guaranteed the temperature homogeneity on the plywood;

(6) the utility model discloses a metal mask frame processing station conversion transport vechicle, the truckle of its bottom half is equipped with 4, and locates four angles departments of bottom half respectively, and wherein two front wheels are the universal wheel, and two rear wheels are directional wheels, adopts universal wheel and directional wheel combination design, and the transport vechicle removes reliable and stable, rocks for a short time, is difficult for because of producing too big turn to rock in the removal process and leads to the metal mask frame to appear the mar or collide with, has improved the stability and the reliability that metal mask frame multistation shifted;

(7) the utility model discloses a metal mask frame processing station conversion transport vechicle, the upper surface of its plywood still is equipped with soft parcel layer, has prevented that metal mask frame from causing the fish tail when placing the plywood on, and soft parcel layer also can make metal mask frame thermally equivalent simultaneously.

Drawings

Fig. 1 is a schematic structural principle diagram of a metal mask frame processing station conversion transport cart of the present invention;

fig. 2 is a schematic structural view of the heat conduction pipe of the present invention;

fig. 3 is a schematic structural view of an electric heating pipe of the present invention.

The reference numerals in the schematic drawings illustrate:

1. a box body; 1-1, laminating; 1-2 parts of soft wrapping layer; 1-3, a caster; 2. a storage battery; 3. a controller; 4. a wire; 5. an electric heating pipe; 5-1, heating wires; 5-2, insulating tubes; 6. a micro refrigeration compressor; 7. a heat exchanger; 7-1, an inner tube; 7-2, an outer jacket; 8. a throttle valve; 9. a heat conducting pipe; 9-1, an air inlet; 9-2, a gas return port; 10. a pipeline; 11. a temperature sensor.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

[ examples ]

Referring to fig. 1, the metal mask frame processing station conversion transport cart of the embodiment includes a box body 1, the box body 1 may adopt a rectangular box body structure, a steel frame structure is adopted, a mask plate is arranged on the periphery of the steel frame body for sealing, a box door for taking and placing the metal mask frame is arranged on one side of the box body 1, a plurality of layers of laminates 1-1 for supporting the metal mask frame are horizontally arranged in the box body 1, casters 1-3 for walking and moving are arranged at the bottom of the box body 1, and a push handle may be arranged at the upper part of the box body 1 for facilitating the pushing of the transport cart; a temperature control system is arranged in the box body 1, the temperature control system comprises a storage battery 2, a controller 3, an electric heating pipe 5, a micro refrigeration compressor 6, a heat exchanger 7, a throttle valve 8, a heat conduction pipe 9 and a temperature sensor 11, the laminate 1-1 is of a hollow structure, the electric heating pipe 5 and the heat conduction pipe 9 are respectively paved in each laminate 1-1 and used for heating or refrigerating the laminate 1-1, the storage battery 2 is respectively and electrically connected with the electric heating pipe 5 and the micro refrigeration compressor 6 through the controller 3, the air outlet end of the micro refrigeration compressor 6 is connected with the air inlet end of an inner pipe 7-1 of the heat exchanger 7, the air outlet end of the inner pipe 7-1 is respectively connected with the air inlet 9-1 of the corresponding heat conduction pipe 9 through the throttle valve 8, the air return port 9-2 of the heat conduction pipe 9 is connected with the air inlet end of, the air outlet end of the outer jacket 7-2 is connected with the air inlet end of the micro refrigeration compressor 6, the temperature sensor 11 is arranged at each layer of the laminate 1-1, and the temperature sensor 11 is electrically connected with the controller 3 through the lead 4. The heating and refrigerating principle of the temperature control system is as follows: the controller 3 sets a temperature range threshold value, the temperature of the transport vehicle can be generally designed to be close to the indoor temperature of a workshop, such as the room temperature of 20 +/-2 ℃, the temperature sensor 11 monitors the internal temperature of the box body 1 in real time, and feeds a detected temperature signal back to the controller 3, the controller 3 compares the detected temperature with the set temperature, and if the detected temperature is within the set temperature range, the electrothermal heating pipe 5 and the micro refrigeration compressor 6 do not work; if the detected temperature is lower than the set temperature range, the controller 3 controls the electric heating pipe 5 to heat; if the detected temperature is higher than the set temperature range, the controller 3 controls the micro refrigeration compressor 6 to cool. The heating and temperature rising are realized by electrifying the electrothermal heating pipe 5; the refrigeration and temperature reduction is realized by utilizing Joule-Thomson refrigeration effect, high-pressure nitrogen is used as a refrigeration working substance, the controller 3 controls the micro refrigeration compressor 6 to work, the micro refrigeration compressor 6 sends the nitrogen into the inner pipe 7-1 of the heat exchanger 7, the nitrogen and the throttling generate a temperature reduction effect through the throttling valve 8 and the expansion in the heat conduction pipe 9, the heat conduction pipe 9 is made of a material with good heat conductivity, such as copper or silver, and the nitrogen after pressure reduction and temperature reduction flows back to the outer jacket 7-2 of the heat exchanger 7 through the pipeline 10 to exchange heat with the high-pressure nitrogen in the inner pipe 7-1, then flows back to the micro refrigeration compressor 6 again, is compressed by the micro refrigeration compressor 6, and the laminate 1-1 can be cooled after cyclic throttling, expansion and temperature reduction. Generally, the electric heating pipe 5 is used for heating in winter, and the micro refrigeration compressor 6 is used for cooling in summer. By adopting the temperature control system, the temperature sensor is utilized to monitor the temperature of each layer of laminate in real time, and the electric heating unit or the small refrigerating unit is controlled to heat or refrigerate after the temperature exceeds the set threshold interval of the controller, so that the stable temperature is maintained in the box body of the transport vehicle, the deformation of the product caused by large temperature change in the transfer process of the metal mask frame is prevented, and the processing precision of the metal mask frame is improved; in addition, the electric heating unit and the small refrigerating unit are reasonably arranged in the transport vehicle, the temperature of the laminate is uniformly controlled, the Joule-Thomson refrigerating effect is adopted for refrigerating, the structure is simple and compact, the size is small, the refrigerating speed is high, and the energy consumption requirement is low.

As shown in fig. 1, in this embodiment, the electric heating pipes 5 on each layer of laminate 1-1 are connected in parallel through the wires 4, the heat pipes 9 on each layer of laminate 1-1 are connected in parallel through the pipes 10, and the air inlet end of each heat pipe 9 is provided with the throttle valve 8, so that the electric heating pipes 5 and the refrigeration heat pipes 9 on each layer of laminate 1-1 are independent from each other, and normal temperature control of other layers cannot be affected by heating or refrigeration failure of a certain layer. As shown in fig. 3, the electric heating tube 5 includes an electric heating wire 5-1 and an insulating tube 5-2, the insulating tube 5-2 is sleeved outside the electric heating wire 5-1, the insulating tube 5-2 can be a high temperature resistant flame retardant glass fiber insulating sleeve or a ceramic sleeve, and the insulating tube 5-2 is used to wrap the electric heating wire 5-1, thereby effectively avoiding the occurrence of electric leakage during use and being safer to use. As shown in figure 1, the outer wall of the inner tube 7-1 of the heat exchanger 7 is also provided with a plurality of fins, so that the heat exchange area between the inner tube 7-1 and the outer jacket 7-2 is increased, the heat exchange efficiency between the inner tube 7-1 and the outer jacket 7-2 of the heat exchanger 7 is higher, and the refrigeration efficiency of the small refrigeration unit is further improved. In order to improve the temperature uniformity of the laminate 1-1, the electric heating pipes 5 are all laid on each laminate 1-1 in an S-shaped structure (as shown in fig. 3), and the heat conduction pipes 9 are all laid on each laminate 1-1 in a spiral coil pipe structure (as shown in fig. 2), so that heating and cooling are more uniform, and the temperature uniformity of the laminate 1-1 is ensured.

In order to improve the moving stability of the transport vehicle, 4 trundles 1-3 are arranged at the bottom of the box body 1 and are respectively arranged at four corners of the bottom of the box body 1, two front wheels are universal wheels, two rear wheels are directional wheels, the universal wheels are convenient for the transport vehicle to flexibly steer, the directional wheels can prevent steering and shaking, the universal wheels and the directional wheels are combined, the transport vehicle is stable and reliable in moving and small in shaking, scratches or collisions of the metal mask frame caused by too large steering and shaking generated in the moving process are avoided, and the multi-station transferring stability and reliability of the metal mask frame are improved. As shown in figure 1, the upper surface of the laminate 1-1 is also provided with a soft wrapping layer 1-2, the soft wrapping layer 1-2 can adopt a leather wrapping structure filled with heat-resistant sponge at the inner side, so that the metal mask frame is prevented from being scratched when being placed on the laminate, and meanwhile, the soft wrapping layer 1-2 can also enable the metal mask frame to be heated more uniformly.

In the metal mask frame processing station conversion transport cart of the embodiment, the storage battery 2, the controller 3, the micro refrigeration compressor 6 and the heat exchanger 7 are all installed at the bottom of the box body 1. When the mask box is used for the first time, the interior of the box body 1 can be preheated or precooled according to the environmental temperature, so that the overall temperature of the box body 1 reaches a set stable range, and then the metal mask frame is horizontally placed on the laminate 1-1 of the box body 1; the metal mask frame is transferred in each processing station or workshop by using a transport vehicle, and the temperature in the box body 1 can be controlled by using a temperature control system after the temperature in the box body is increased or decreased, so that the temperature in the box body 1 is maintained within a set temperature range.

The utility model discloses a metal mask frame processing station conversion transport vechicle is equipped with temperature control system in the box, temperature control system comprises electric heating unit and small-size refrigeration unit, utilizes temperature sensor real-time supervision each layer plywood department temperature, controls electric heating unit or small-size refrigeration unit to heat or refrigerate after the temperature surpasses controller settlement threshold interval for keep stable temperature in the box of transport vechicle, prevent that metal mask frame from appearing temperature variation great and arousing the product deformation in the transportation, improved the machining precision of metal mask frame; in addition, the electric heating unit and the small refrigerating unit are reasonably arranged in the transport vehicle, the temperature of the laminate is uniformly controlled, the Joule-Thomson refrigerating effect is adopted for refrigerating, the structure is simple and compact, the size is small, the refrigerating is quick, and the energy consumption requirement is low; meanwhile, the front wheels of the transport vehicle are universal wheels, the rear wheels of the transport vehicle are directional wheels, the transport vehicle is stable and reliable in movement and small in shaking, scratches or collision of the metal mask frame caused by excessive steering shaking generated in the moving process are not prone to occurring, and the multi-station transferring stability and reliability of the metal mask frame are improved.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.

Claims (8)

1. The utility model provides a metal mask frame processing station conversion transport vechicle, includes box (1), box (1) in the level be equipped with a plurality of layers be used for bearing metal mask frame plywood (1-1), the bottom of box (1) be equipped with truckle (1-3) that are used for the walking to remove, its characterized in that: the box (1) in be equipped with temperature control system, temperature control system include battery (2), controller (3), electric heat heating pipe (5), miniature refrigeration compressor (6), heat exchanger (7), choke valve (8), heat pipe (9) and temperature sensor (11), electric heat heating pipe (5) and heat pipe (9) lay respectively in each layer plywood (1-1), battery (2) respectively with electric heat heating pipe (5), miniature refrigeration compressor (6) electricity be connected through controller (3), miniature refrigeration compressor (6) give vent to anger the end and be connected with the inner tube (7-1) inlet end of heat exchanger (7), the end of giving vent to anger of inner tube (7-1) be connected with air inlet (9-1) of corresponding heat pipe (9) through choke valve (8) respectively, the air return port (9-2) of the heat conduction pipe (9) is connected with the air inlet end of an outer jacket (7-2) of the heat exchanger (7) through a pipeline (10), the air outlet end of the outer jacket (7-2) is connected with the air inlet end of the micro refrigeration compressor (6), the temperature sensor (11) is arranged at each layer of laminate (1-1), and the temperature sensor (11) is electrically connected with the controller (3) through a lead (4).

2. The metal mask frame processing station conversion transport cart according to claim 1, wherein: the electric heating pipes (5) on the laminates (1-1) of each layer are connected in parallel through the conducting wires (4); the heat conduction pipes (9) on the laminates (1-1) of each layer are connected in parallel through pipelines (10), and the air inlet end of each heat conduction pipe (9) is provided with a throttle valve (8).

3. The metal mask frame processing station conversion transport cart according to claim 2, wherein: the electric heating pipe (5) comprises an electric heating wire (5-1) and an insulating pipe (5-2), and the insulating pipe (5-2) is sleeved outside the electric heating wire (5-1).

4. The metal mask frame processing station conversion transport cart according to claim 2, wherein: the outer wall of the inner pipe (7-1) of the heat exchanger (7) is also provided with a plurality of fins.

5. The metal mask frame processing station conversion transport cart according to claim 3, wherein: the electric heating pipes (5) are laid on each layer of laminate (1-1) in an S-shaped structure.

6. The metal mask frame processing station conversion transport cart according to claim 5, wherein: the heat conduction pipes (9) are laid on each layer of laminate (1-1) by adopting a spiral coil pipe structure.

7. The metal mask frame processing station transfer carriage as claimed in any one of claims 1 to 6, wherein: the four-wheel-type steering mechanism is characterized in that 4 caster wheels (1-3) are arranged at the bottom of the box body (1) and are respectively arranged at four corners of the bottom of the box body (1), wherein two front wheels are universal wheels, and two rear wheels are directional wheels.

8. The metal mask frame processing station conversion transport cart according to claim 7, wherein: the upper surface of the laminate (1-1) is also provided with a soft wrapping layer (1-2).

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