CN215151040U - Cold setting machine of formula of going back and forth - Google Patents

Abstract

The utility model discloses a come and go cold forming machine of formula, including the work box, the terminal surface hinged mounting of work box has two sets of cabinet doors. Has the advantages that: the utility model discloses a sealed lid of dismouting, when the sealed lid of two sets of dismouting of needs installation, two sets of adjusting bolt of counter-clockwise rotation, when the one end of two sets of adjusting bolt separates with the lateral wall of two sets of stay cords respectively, the operative employee steps on with the foot and tramples the square frame this moment, do the motion of keeping away from each other through two sets of stay cords pulling two sets of draw-in groove boards, in this process, eight sets of pivots utilize eight sets of bearings rotatory, the acute angle contained angle crescent between four groups of branches and the shell, it is the opposite directions motion to drive two sets of sealed lids of dismouting, when the inside of inserting shell both ends opening part respectively in the end of facing each other of two sets of sealed lids of dismouting, two sets of adjusting bolt of clockwise rotation, when the one end of two sets of adjusting bolt respectively with the lateral wall in close contact with of two sets of stay cords, accomplish the installation, sealed lid of dismouting through the setting, can be convenient for the sealed lid of dismouting.

Description

Cold setting machine of formula of going back and forth

Technical Field

The utility model relates to a cold forming machine technical field particularly, relates to a come and go cold forming machine of formula.

Background

The cold setting machine is a machine for industrial manufacture and setting, and can be divided into two categories of a heat setting machine and a cold setting machine according to the category, wherein the cold setting machine is cooled and set by a compressor, and is widely applied to various large factories.

However, current come and go back formula cold forming machine, for preventing air conditioning from leaking, can use sealed lid to seal the open end of shell more, but when frequently operating and using the cold forming machine of the come and go back formula, the dismouting of sealed lid is also comparatively frequent, because sealed lid is heavier, dismouting many times, can consume operation workman's physical power, bring inconvenience for the use of the cold forming machine of the come and go back formula, secondly, when the inside air conditioning of shell contacts the steam in the external environment, can form the drop of water, this part drop of water, get into the inside of work box along the air duct, bring inconvenience for the clean use of the cold forming machine of the come and go back formula.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a cold forming machine of formula of coming and going back, possess the sealed lid of dismouting that can be convenient for, can be according to the advantage of user demand switching air duct, and then solve the problem among the above-mentioned background art.

(II) technical scheme

For the above-mentioned advantage that can be convenient for the sealed lid of dismouting, can be according to user demand switching air duct, the utility model discloses a concrete technical scheme as follows:

the utility model provides a come and return formula cold forming machine, includes the work box, the terminal surface hinged mounting of work box has two sets of cabinet doors, the upper portion fixed run through of work box installs the air duct, and the one end lateral wall fixed cup joint of air duct installs the shell to the inside lateral wall fixed mounting of shell has two sets of installation piece, and is two sets of the equal slidable mounting in inside of installation piece has the cardboard, and is two sets of the equal slidable mounting in opposite directions of cardboard has the filter screen, and is two sets of the fixed mounting in opposite directions of installation piece has two sets of baffles, and two sets of the equal fixed mounting in face of keeping away from of baffle has the pneumatic cylinder, and two sets of the flexible end of pneumatic cylinder respectively with the front and back end fixed connection of filter screen, the sealed lid of dismouting is all installed to the both ends opening part of shell, the internally mounted of work box has compressor, condenser pipe, The drying filter and the capillary, the internally mounted of air duct has evaporimeter and fan of blowing, the one end tip of air duct is installed the rubber and is blocked the board.

Furthermore, two groups of fixed plates are fixedly arranged on the upper part of the working box, one side of each group of fixed plates is provided with a fixed through groove, fixed pulleys are rotatably arranged in the two groups of fixed through grooves, pull ropes are wound on the side walls of the two groups of fixed pulleys, one ends of the two groups of pull ropes are fixedly provided with trample frames, the other ends of the two groups of pull ropes are fixedly provided with clamping groove plates, two groups of groove plates and six groups of expansion springs are arranged on the opposite surfaces of the two groups of disassembly and assembly sealing covers, one end of the six groups of expansion springs on the same side is fixedly connected with the end part of the shell, two groups of bearings are arranged on the upper parts of the two groups of clamping groove plates in a penetrating manner, bearings are arranged on the upper parts of the four groups of groove plates in a penetrating manner, rotating shafts are arranged in the eight groups of bearings in a penetrating manner, and supporting rods are respectively sleeved on the two groups of rotating shaft side walls positioned in the one group of clamping groove plates, the homonymy is two sets of recess intralamellar part's pivot runs through the homonymy respectively two sets of the other end of branch, two sets of the lateral wall of stay cord all cup joints installs and covers the cover, and two sets of cover the face of keeping away from of cover all is provided with the screw thread through-hole, and two sets of the inside of screw thread through-hole all runs through and installs adjusting bolt.

Furthermore, the two groups of threaded through holes are meshed with the two groups of adjusting bolts.

Further, the size of the inner cross section of the stepping square frame is the same as that of the cross section of the working box.

Further, the one end of air duct is provided with two sets of built-in protruding type grooves, and two sets of the extension rod is all run through to install in the inside of built-in protruding type groove opening part, and two sets of the equal fixed mounting in one end of extension rod has the limiting plate, and is two sets of the lower part fixed connection that intercept the board is blocked to the other end and the rubber of extension rod, the lower part that intercept the board is blocked to rubber is provided with built-in bell jar.

Furthermore, the cross section size of two sets of limiting plates is greater than the cross section size of two sets of built-in convex groove openings.

Furthermore, a control panel is installed on the upper portion of the working box, and the control panel is electrically connected with the two sets of hydraulic cylinders, the compressor, the condenser pipe, the drying filter, the capillary pipe, the evaporator and the blowing fan through electric wires.

Furthermore, four groups of universal wheels are installed at the lower part of the working box.

(III) advantageous effects

Compared with the prior art, the utility model provides a come and go cold forming machine of formula possesses following beneficial effect:

(1) the utility model adopts the dismounting sealing covers, when two groups of dismounting sealing covers need to be installed, two groups of thread through holes are meshed with two groups of adjusting bolts, the two groups of adjusting bolts are rotated anticlockwise, when one ends of the two groups of adjusting bolts are respectively separated from the side walls of the two groups of pull ropes, an operator pedals a pedal frame by feet at the moment, pulls two groups of clamping groove plates through the two groups of pull ropes to do mutual distance movement, in the process, eight groups of rotating shafts utilize eight groups of bearings to rotate, acute angle included angles between four groups of supporting rods and a shell are gradually increased to drive the two groups of dismounting sealing covers to do opposite movement, at the moment, twelve groups of expansion springs are gradually in a compression state, when opposite ends of the two groups of dismounting sealing covers are respectively inserted into openings at two ends of the shell, the two groups of adjusting bolts are rotated clockwise, when one ends of the two groups of adjusting bolts are respectively in close contact with the side walls of the two groups of pull ropes, accomplish the installation, when the sealed lid of two sets of dismouting of needs dismantlement, two sets of adjusting bolt of anticlockwise rotation once more, when the one end of two sets of adjusting bolt separates with the lateral wall of two sets of stay cords respectively, twelve groups of expanding spring receive self spring action, support the sealed lid of two sets of dismouting and do the motion of keeping away from each other, when the sealed lid of two sets of dismouting breaks away from the shell, the acute angle contained angle between four groups branch and the shell reduces gradually, accomplish the dismouting, two sets of stay cords remove the in-process, it is rotatory that its lateral wall can rub two sets of fixed pulleys of pulling, prevent that two sets of stay cords and two sets of fixed plates friction damage, the sealed lid of dismouting through setting up, can be convenient for two sets of dismouting sealed lids of dismouting, bring the facility for the use of the cold forming machine of formula of coming and going back.

(2) The utility model discloses a rubber interceptor, when the fan of blowing begins the during operation, the mobile cold air of formation can get into the inside of built-in bell jar, promote rubber interceptor, two sets of extension rods and two sets of limiting plates shift up perpendicularly, the one end opening part of air duct is external this moment, the cold air of flow is derived, when fan stop work of blowing, the cold air of flow disappears, rubber interceptor receives the action of gravity, do perpendicular downstream, when the lower part of rubber interceptor and the one end in close contact with of air duct, open the inside that the leading-in steam of the sealed lid of dismouting formed can't get into the work box through the air duct this moment, rubber interceptor through setting, can be according to user demand switching air duct, bring the facility for the clean use of the cold forming machine of formula of coming and going back.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a back-and-forth cold setting machine provided by the present invention;

FIG. 2 is a schematic cross-sectional view of the working chamber of the present invention;

fig. 3 is a schematic cross-sectional view of the slot plate of the present invention;

fig. 4 is a top view of the filter screen of the present invention;

FIG. 5 is a perspective view of the rubber interceptor plate of the present invention;

FIG. 6 is an enlarged view of A of FIG. 1 according to the present invention;

FIG. 7 is an enlarged view of B of FIG. 1 according to the present invention;

fig. 8 is an enlarged view of C in fig. 2 according to the present invention.

In the figure:

1. a work box; 2. a cabinet door; 3. an air duct; 4. a housing; 5. mounting blocks; 6. a guide rail; 7. clamping a plate; 8. filtering with a screen; 9. a baffle plate; 10. a hydraulic cylinder; 11. disassembling and assembling the sealing cover; 12. a compressor; 13. a condenser tube; 14. drying the filter; 15. a capillary tube; 16. an evaporator; 17. a blower fan; 18. a rubber interception plate; 19. a fixing plate; 20. fixing the through groove; 21. a fixed pulley; 22. pulling a rope; 23. trampling a square frame; 24. a slot clamping plate; 25. a groove plate; 26. a bearing; 27. a rotating shaft; 28. a strut; 29. a tension spring; 30. a convex groove is arranged inside; 31. an extension rod; 32. a limiting plate; 33. a conical groove is arranged inside; 34. a covering cover; 35. a threaded through hole; 36. and adjusting the bolt.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides a cold forming machine of formula of coming and going back.

Referring to the drawings and the detailed description, as shown in fig. 1-8, a reciprocating cold setting machine according to an embodiment of the present invention comprises a working box 1, two sets of cabinet doors 2 are hinged to the end face of the working box 1, an air duct 3 is fixedly installed on the upper portion of the working box 1, a housing 4 is fixedly sleeved on the side wall of one end of the air duct 3, two sets of installation blocks 5 are fixedly installed on the inner side wall of the housing 4, guide rails 6 are respectively arranged on the facing surfaces of the two sets of installation blocks 5, clamping plates 7 are respectively slidably installed inside the two sets of guide rails 6, filter screens 8 are fixedly installed on the facing surfaces of the two sets of clamping plates 7, two sets of baffles 9 are fixedly installed on the facing surfaces of the two sets of baffles 9, hydraulic cylinders 10 are respectively fixedly installed on the far-away surfaces of the two sets of baffles 9, and the telescopic ends of the two sets of hydraulic cylinders 10 are respectively fixedly connected with the front and rear ends of the filter screens 8, the sealed lid 11 of dismouting is all installed to the both ends opening part of shell 4, and the internally mounted of work box 1 has compressor 12, condenser pipe 13, dry filter 14 and capillary 15, and the internally mounted of air duct 3 has evaporimeter 16 and blower 17, and the rubber interception board 18 is installed to the one end tip of air duct 3, and two sets of pneumatic cylinder 10, compressor 12, condenser pipe 13, dry filter 14, capillary 15, evaporimeter 16 and blower 17 are current structure, do not do too much to describe herein.

In one embodiment, two sets of fixing plates 19 are fixedly mounted on the upper portion of the working box 1, one side of each of the two sets of fixing plates 19 is provided with a fixing through groove 20, the two sets of fixing through grooves 20 are rotatably mounted with fixed pulleys 21, the side walls of the two sets of fixed pulleys 21 are wound with pull ropes 22, one ends of the two sets of pull ropes 22 are fixedly mounted with a stepping frame 23, the other ends of the two sets of pull ropes 22 are fixedly mounted with snap groove plates 24, the facing surfaces of the two sets of detachable sealing covers 11 are respectively provided with two sets of groove plates 25 and six sets of expansion springs 29, one ends of the six sets of expansion springs 29 on the same side are fixedly connected with one end portion of the shell 4, the upper portions of the two sets of snap groove plates 24 are respectively provided with two sets of bearings 26, the upper portions of the four sets of groove plates 25 are respectively provided with bearings 26, the eight sets of bearings 26 are respectively provided with a rotating shaft 27, the side walls of the two sets of rotating shafts 27 positioned inside the one set of snap groove plates 24 are respectively provided with supporting rods 28, the rotating shafts 27 in the two groups of groove plates 25 on the same side respectively penetrate through the other ends of the two groups of supporting rods 28 on the same side, the side walls of the two groups of pulling ropes 22 are respectively sleeved with the covering covers 34, the far surfaces of the two groups of covering covers 34 are respectively provided with the threaded through holes 35, the inside of the two groups of threaded through holes 35 is respectively provided with the adjusting bolts 36 in a penetrating way, when two groups of dismounting and sealing covers 11 need to be mounted, the two groups of threaded through holes 35 are meshed with the two groups of adjusting bolts 36, the two groups of adjusting bolts 36 are rotated anticlockwise, when one ends of the two groups of adjusting bolts 36 are respectively separated from the side walls of the two groups of pulling ropes 22, an operator pedals the stepping frame 23 with feet, pulls the two groups of clamping groove plates 24 through the two groups of pulling ropes 22 to move away from each other, in the process, the eight groups of rotating shafts 27 are rotated by the eight groups of bearings 26, acute-angle included angles between the four groups of supporting rods 28 and the shell 4 are gradually increased to drive the two groups of dismounting and sealing covers 11 to move towards each other, at this time, twelve groups of expansion springs 29 are gradually in a compressed state, when the opposite ends of two groups of detachable sealing covers 11 are respectively inserted into the openings at the two ends of the housing 4, two groups of adjusting bolts 36 are rotated clockwise, when one ends of two groups of adjusting bolts 36 are respectively in close contact with the side walls of two groups of pull ropes 22, the mounting is completed, when the two groups of detachable sealing covers 11 need to be detached, two groups of adjusting bolts 36 are rotated counterclockwise again, when one ends of two groups of adjusting bolts 36 are respectively separated from the side walls of two groups of pull ropes 22, twelve groups of expansion springs 29 are under the action of self elasticity to abut against the two groups of detachable sealing covers 11 to move away from each other, when the two groups of detachable sealing covers 11 are separated from the housing 4, the acute included angles between the four groups of supporting rods 28 and the housing 4 are gradually reduced, the detachment is completed, and when the two groups of pull ropes 22 move, the side walls can rub and pull the two groups of fixed pulleys 21 to rotate, so as to prevent the two groups of pull ropes 22 from rubbing damage with the two groups of fixed plates 19, through the sealed lid 11 of dismouting that sets up, the sealed lid 11 of two sets of dismouting of can being convenient for brings the facility for the use of coming and going back formula cold forming machine.

In one embodiment, the two sets of threaded through holes 35 are engaged with the two sets of adjusting bolts 36 to facilitate adjustment of the positions of the two sets of adjusting bolts 36.

In one embodiment, the internal cross-sectional dimension of the stepping block 23 is the same as the cross-sectional dimension of the work box 1, so that the stepping block 23 is prevented from being difficult to keep moving down horizontally due to the fact that the internal cross-sectional dimension of the stepping block 23 is too large.

In one embodiment, two sets of built-in convex grooves 30 are arranged at one end of the air duct 3, extension rods 31 are arranged in the openings of the two sets of built-in convex grooves 30 in a penetrating manner, limit plates 32 are fixedly arranged at one ends of the two sets of extension rods 31, the other ends of the two sets of extension rods 31 are fixedly connected with the lower portion of the rubber interception plate 18, a built-in conical groove 33 is arranged at the lower portion of the rubber interception plate 18, when the blower fan 17 starts to work, formed flowing cold air can enter the built-in conical groove 33 to push the rubber interception plate 18, the two sets of extension rods 31 and the two sets of limit plates 32 to vertically move upwards, the opening at one end of the air duct 3 is externally arranged, the flowing cold air is led out, when the blower fan 17 stops working, the flowing cold air disappears, the rubber interception plate 18 is vertically moved downwards under the action of gravity, when the lower portion of the rubber interception plate 18 is tightly contacted with one end of the air duct 3, the inside that the sealed leading-in steam of lid 11 of dismouting formed can't get into work box 1 through air duct 3 is opened the drop of water of this moment, through the rubber interception board 18 that sets up, can be according to user demand switching air duct 3, and the clean use of cold forming machine of formula of coming and going brings the facility.

In one embodiment, the cross-sectional dimensions of the two sets of limiting plates 32 are larger than the cross-sectional dimensions of the openings of the two sets of built-in convex grooves 30, so as to avoid that the two sets of extension rods 31 are separated from the two sets of built-in convex grooves 30 due to the undersize cross-sectional dimensions of the two sets of limiting plates 32.

In one embodiment, a control panel is installed on the upper portion of the working box 1, and the control panel is electrically connected to the two sets of hydraulic cylinders 10, the compressor 12, the condenser pipe 13, the dry filter 14, the capillary tube 15, the evaporator 16 and the blower fan 17 through electric wires, and the control panel can be implemented through simple programming by those skilled in the art, which belongs to the common knowledge in the art, and is used only without modification, so the control mode and the circuit connection are not described in detail.

In one embodiment, four sets of universal wheels are mounted on the lower portion of the work box 1, and the four sets of universal wheels are convenient to move and use for the back-and-forth type cold setting machine.

The working principle is as follows:

when the device works, a shaped object is placed on the upper part of the filter screen 8, two groups of dismounting sealing covers 11 need to be installed at the moment, two groups of threaded through holes 35 are meshed with two groups of adjusting bolts 36, the two groups of adjusting bolts 36 are rotated anticlockwise, when one ends of the two groups of adjusting bolts 36 are separated from the side walls of the two groups of pull ropes 22 respectively, an operator pedals the treading frame 23 with feet, the two groups of clamping groove plates 24 are pulled by the two groups of pull ropes 22 to move away from each other, in the process, eight groups of rotating shafts 27 rotate by eight groups of bearings 26, acute included angles between the four groups of supporting rods 28 and the shell 4 are gradually increased to drive the two groups of dismounting sealing covers 11 to move towards each other, at the moment, twelve groups of expansion springs 29 are gradually in a compression state, when the opposite ends of the two groups of dismounting sealing covers 11 are respectively inserted into the openings at the two ends of the shell 4, the two groups of adjusting bolts 36 are rotated clockwise, when one ends of the two groups of adjusting bolts 36 are respectively in close contact with the side walls of the two groups of pull ropes 22, when the two sets of detachable sealing covers 11 need to be detached, the two sets of adjusting bolts 36 are rotated counterclockwise again, when one end of each set of adjusting bolts 36 is separated from the side wall of each set of pulling ropes 22, the twelve sets of expansion springs 29 are under the action of their own elasticity to abut against the two sets of detachable sealing covers 11 to move away from each other, when the two sets of detachable sealing covers 11 are separated from the housing 4, the acute included angle between the four sets of supporting rods 28 and the housing 4 is gradually reduced to complete the detachment, and during the movement of the two sets of pulling ropes 22, the side walls thereof can rub and pull the two sets of fixed pulleys 21 to rotate, thereby preventing the two sets of pulling ropes 22 from rubbing and damaging the two sets of fixed plates 19, through the provided detachable sealing covers 11, the two sets of detachable sealing covers 11 can be conveniently detached, thereby facilitating the use of the return type cold setting machine, meanwhile, when the blowing fan 17 starts to work, the formed flowing cold air can enter the inner portion of the built-in tapered groove 33, promote rubber and block board 18, two sets of extension rods 31 and two sets of limiting plates 32 move up perpendicularly, the one end opening part of air duct 3 is external this moment, the cold air of flow is derived, when fan 17 stop work of blowing, the cold air of flow disappears, rubber blocks board 18 receives the action of gravity, do perpendicular downstream, when the lower part of rubber blocks board 18 and the one end in close contact with of air duct 3, open the inside that the sealed lid 11 leading-in steam of dismouting formed can't get into work box 1 through air duct 3 this moment, rubber blocks board 18 through the setting, can be according to user demand switching air duct 3, bring the facility for the clean use of the cold forming machine of formula that comes and goes back.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The cold setting machine is characterized by comprising a working box (1), wherein two groups of cabinet doors (2) are hinged to the end face of the working box (1), an air guide pipe (3) is fixedly installed on the upper portion of the working box (1) in a penetrating mode, a shell (4) is fixedly sleeved on one end side wall of the air guide pipe (3), two groups of installation blocks (5) are fixedly installed on the inner side wall of the shell (4), guide rails (6) are arranged on the opposite faces of the two groups of installation blocks (5), clamping plates (7) are slidably installed inside the two groups of guide rails (6), filter screens (8) are fixedly installed on the opposite faces of the two groups of clamping plates (7), two groups of baffle plates (9) are fixedly installed on the opposite faces of the two groups of installation blocks (5), hydraulic cylinders (10) are fixedly installed on the far faces of the two groups of baffle plates (9), and the telescopic ends of the two groups of hydraulic cylinders (10) are fixedly connected with the front end and the back end of the filter screens (8) respectively, sealed lid of dismouting (11) are all installed to the both ends opening part of shell (4), the internally mounted of work box (1) has compressor (12), condenser pipe (13), drier-filter (14) and capillary (15), the internally mounted of air duct (3) has evaporimeter (16) and blower (17), rubber interception board (18) are installed to the one end tip of air duct (3).

2. The machine according to claim 1, wherein two sets of fixing plates (19) are fixedly installed on the upper portion of the working box (1), one side of each of the two sets of fixing plates (19) is provided with a fixing through groove (20), the two sets of fixing through grooves (20) are internally and rotatably provided with fixed pulleys (21), the side walls of the two sets of fixed pulleys (21) are respectively wound with pulling ropes (22), one ends of the two sets of pulling ropes (22) are fixedly provided with stepping frames (23), the other ends of the two sets of pulling ropes (22) are respectively and fixedly provided with slot plates (24), two sets of groove plates (25) and six sets of telescopic springs (29) are respectively installed on the opposite surfaces of the two sets of disassembling and assembling sealing covers (11), one ends of the six sets of telescopic springs (29) on the same side are fixedly connected with one end of the housing (4), and two sets of bearings (26) are respectively installed on the upper portions of the two sets of slot plates (24) in a penetrating manner, four sets of bearing (26), eight groups are all run through to install on the upper portion of recess board (25) the inside of bearing (26) is all run through and is installed pivot (27), is located a set of inside two sets of draw-in groove board (24) pivot (27) lateral wall cup joints respectively and installs branch (28), and the homonymy is two sets of the inside pivot (27) of recess board (25) runs through the homonymy respectively two sets of the other end of branch (28), two sets of the lateral wall of stay cord (22) all cup joints and installs and cover (34), and two sets of the face of keeping away from that covers cover (34) all is provided with screw through-hole (35), and two sets of adjusting bolt (36) are all run through to install in the inside of screw through-hole (35).

3. A walk-back cold setting machine according to claim 2, characterised in that two sets of said threaded through holes (35) are mutually engaged with two sets of said adjusting bolts (36).

4. A walk-back cold setting machine according to claim 2, characterised in that the internal cross-sectional dimensions of the tread blocks (23) are the same as the cross-sectional dimensions of the work box (1).

5. The machine according to claim 1, wherein two sets of built-in convex grooves (30) are provided at one end of the air duct (3), extension rods (31) are installed at openings of the two sets of built-in convex grooves (30) in a penetrating manner, limiting plates (32) are fixedly installed at one ends of the two sets of extension rods (31), the other ends of the two sets of extension rods (31) are fixedly connected with the lower portion of the rubber interception plate (18), and built-in tapered grooves (33) are provided at the lower portion of the rubber interception plate (18).

6. A return cold setting machine according to claim 5, characterised in that the two groups of limit plates (32) have a cross-section greater than the cross-section at the opening of the two groups of built-in male grooves (30).

7. The machine according to claim 1, wherein a control panel is installed on the upper portion of the working box (1), and the control panel is electrically connected to the two sets of hydraulic cylinders (10), the compressor (12), the condenser pipe (13), the drying filter (14), the capillary tube (15), the evaporator (16) and the blower fan (17) through wires.

8. The walk-back cold setting machine according to claim 1, wherein four sets of universal wheels are installed at the lower part of the work box (1).

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