A gluing device for producing cold storage compartment insulation boards and a working method thereof

Abstract

The application discloses a kind of production cold storage compartment heat preservation board's glue spraying equipment, including track, travelling crane chassis, main body, rotary table, cantilever, travelling trolley, glue spraying head and station support, two tracks are arranged in parallel on workshop ground, and the station support for placing cold storage compartment heat preservation board panel is arranged in parallel to track, and two station supports are symmetrically arranged on the two sides of track;Travelling crane chassis travels along track, main body and rotary table are arranged on travelling crane chassis, cantilever root rotatably connected at the top of rotary table, and the projecting end of cantilever can exceed the outer edge of station support;The projecting end of cantilever is provided with horizontal guide rail, and travelling trolley travels on horizontal guide rail, and travelling trolley bottom end is connected with glue spraying head, and glue spraying head is connected to main body by drag chain pipeline.The application further discloses the working method of the above-mentioned production cold storage compartment heat preservation board's glue spraying equipment.The application can glue spraying for various specifications of cold storage compartment heat preservation board, and improves operation efficiency and operation quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cold compartment insulation board processing, and particularly relates to a glue spraying device for producing cold compartment insulation boards and a working method thereof. BACKGROUND

[0002] The existing cold compartment insulation board is generally formed by bonding a glass fiber reinforced plastic panel and a polyurethane core board, so as to insulate the cold compartment. The production process of the cold compartment insulation board comprises spraying adhesive on the glass fiber reinforced plastic panel and heating and pressing the glass fiber reinforced plastic panel and the polyurethane core board, so as to obtain the cold compartment insulation board. When spraying the adhesive on the glass fiber reinforced plastic panel, the manual brushing of the adhesive by the manual roller is still used at present, which has the defects of serious waste of labor and uncontrollable quality of the adhesive. It is found through investigation that there are automatic glue spraying machines in other fields, for example, the automatic glue spraying machine is used in the production of safety doors, which can greatly improve the production efficiency. However, these glue spraying machines are mostly used as part of the whole production line and are suitable for online glue spraying operation, and are not suitable for the offline production mode of the present application.

[0003] Therefore, it is necessary to develop a glue spraying device for producing cold compartment insulation boards and a working method thereof aiming at the above defects. SUMMARY

[0004] The purpose of the present application is to provide a glue spraying device for producing cold compartment insulation boards and a working method thereof, which can spray glue on cold compartment insulation boards of various specifications, and improve the work efficiency and work quality.

[0005] To solve the above technical problems, the present application adopts the following technical scheme:

[0006] The glue spraying device for producing cold compartment insulation boards comprises a track, a crane chassis, a main body, a rotary table, a cantilever, a walking trolley, a glue spraying head and a work station support. Two tracks are arranged in parallel on the workshop floor, the work station supports for placing the cold compartment insulation board panels are arranged in parallel with the tracks, and the two work station supports are symmetrically arranged on the two sides of the tracks. The crane chassis walks along the tracks, the main body and the rotary table are arranged on the crane chassis, the root of the cantilever is rotatably connected to the top of the rotary table, and the protruding end of the cantilever can exceed the outer edge of the work station support. The protruding end of the cantilever is provided with a horizontal guide rail, the walking trolley walks on the horizontal guide rail, the walking trolley is connected to the glue spraying head at the bottom end, and the glue spraying head is connected to the main body through a drag chain pipeline.

[0007] Further, the rotating table is arranged at the front of the chassis of the truck, the top of the rotating table is connected with the rotating disc at the root of the cantilever through a slewing bearing, the outer ring of the slewing bearing is arranged as a large gear ring, a reduction motor is arranged on the rotating disc, a pinion is arranged on the downward protruding end of the reduction motor, and the pinion is engaged with the large gear ring.

[0008] Further, the work station support specifically adopts a support frame with multiple rollers, and a positioning assembly for aligning the cold storage compartment insulation panel is arranged on the support frame.

[0009] Further, the positioning assembly comprises a first limiting piece and a second limiting piece, the first limiting piece is arranged at one end of the work station support and is used for positioning the short side of the cold storage compartment insulation panel, and the second limiting piece is arranged at the outer side of the work station support and is used for positioning the long side of the cold storage compartment insulation panel.

[0010] Further, the glue pouring head is provided with multiple glue pouring heads, and the multiple glue pouring heads are arranged at equal intervals in a straight row at the bottom of the glue pouring head.

[0011] Further, the glue pouring head is provided with multiple glue pouring heads, and the multiple glue pouring heads are arranged at equal intervals in a straight row at the bottom of the glue pouring head.

[0012] Further, the rotating unit specifically adopts a rotary air cylinder, the cylinder base part of the rotary air cylinder is connected with the bottom end connecting rod of the walking trolley, and the rotating disc part of the rotary air cylinder is vertically downward and connected with the glue pouring head.

[0013] A working method of the glue pouring equipment for producing cold storage compartment insulation panels is applied to the glue pouring operation of the glue pouring equipment for producing cold storage compartment insulation panels, and the cold storage compartment insulation panels on the work station supports on both sides can be glued by rotating the cantilever by 180 degrees.

[0014] Further, the walking trolley is provided with a speed sensor, the speed sensor feeds back a walking trolley speed signal to the controller of the main body, and the controller controls the glue pouring flow according to the speed signal.

[0015] Further, the walking trolley is provided with a speed sensor, the speed sensor feeds back a walking trolley speed signal to the controller of the main body, and the controller controls the glue pouring flow according to the speed signal.

[0016] Compared with the prior art, the beneficial technical effects of the present application are:

[0017] The present application is a kind of production cold storage compartment insulation board's glue spraying equipment, through the crane chassis drives cantilever to remove, can be along the length direction of work station support full length's glue spraying operation;Through the cantilever root rotatable connection in the top of rotary table, can be on both sides two work station's work station support alternate glue spraying, in the process of unloading on one work station support, another work station is in the glue spraying operation, greatly improve the operation efficiency.The present application production cold storage compartment insulation board's glue spraying equipment can be on a variety of specifications of cold storage compartment insulation board glue spraying, improve the operation efficiency and operation quality.

[0018] In addition, by the degree of rotation support of the rotation bearing and the pinion, the swing angle of the cantilever can be adjusted according to the actual situation, and then different walking angles of the glue spraying head are realized. By setting the positioning assembly on the work station support, the cold storage compartment insulation board panel that needs to be glued can be accurately positioned. Only the size parameters of the cold storage compartment insulation board panel of this specification need to be input into the touch screen of the electric control cabinet, and the glue spraying path can be automatically set. By using the first limiting piece and the second limiting piece in the telescopic mode for hidden positioning, the feeding and discharging are facilitated. By providing a plurality of glue outlets on the glue spraying head, the glue spraying area of one walking can be increased, and the glue spraying efficiency is greatly improved. By providing a rotating unit between the glue spraying head and the walking trolley, the angle of the glue spraying head can be adjusted, and then the spacing between adjacent glue lines can be adjusted. For the cold storage compartment insulation board panel with small width, the glue spraying head can be rotated and directly walked along the long edge of the panel for glue spraying, without reciprocating along the wide edge for glue spraying, thereby improving the glue spraying efficiency.

[0019] The working method of the present application production cold storage compartment insulation board's glue spraying equipment, through the way of rotating cantilever to two work station's work station support for glue spraying operation, can realize one drag two operation, improve the equipment utilization efficiency and operation efficiency.The present application introduces the speed feedback mode to control the glue flow during the turning back process of the walking trolley, which can effectively reduce the edge overflow and improve the glue spraying quality.The present application adopts a simple and clear quantitative flow reduction method, which can achieve rapid response of the system and reduce the hysteresis effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings.

[0021] Figure 1 It is a top view structural schematic diagram of the present application production cold storage compartment insulation board's glue spraying equipment;

[0022] Figure 2 It is a main view structural schematic diagram of the cantilever part of the present application;

[0023] Figure 3 It is a top view schematic diagram of the cold storage compartment insulation board panel after glue spraying by the working method of the present application.

[0024] Explanation of reference signs: 1, track; 2, trolley chassis; 3, main body; 4, rotary table; 401, rotary support; 5, cantilever; 501, pinion; 6, walking trolley; 601, speed sensor; 7, glue spraying head; 8, station support; 9, first limiting piece; 10, second limiting piece; 11, rotating unit; 12, cold storage compartment insulation board panel; 13, glue spraying line. DETAILED DESCRIPTION

[0025] The core of the present application is to provide a glue spraying equipment for producing cold storage compartment insulation board and a working method thereof, which can spray glue on cold storage compartment insulation boards of various specifications, thereby improving work efficiency and work quality.

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0028] Referring to the drawings, Figure 1 is a top view structural schematic diagram of the glue spraying equipment for producing cold storage compartment insulation board of the present application; Figure 2 is a front view structural schematic diagram of the cantilever part of the present application; Figure 3 is a top view schematic diagram of the cold storage compartment insulation board panel after glue spraying by the working method of the present application.

[0029] In a specific embodiment, as Figure 1 and Figure 2As shown, a kind of production cold storage compartment insulation board's glue spraying equipment includes track 1, travelling crane chassis 2, main body 3, rotary table 4, cantilever 5, travelling trolley 6, glue spraying head 7 and work station support 8.Two tracks 1 are laid in parallel on workshop floor, and the work station support 8 for placing cold storage compartment insulation board panel 12 is arranged in parallel to track 1, and two work station supports 8 are symmetrically arranged on the two sides of track 1.Travelling crane chassis 2 travels along track 1, and main body 3 and rotary table 4 are arranged on travelling crane chassis 2, and main body 3 includes glue storage tank, screw pump, control cabinet and the like.Cantilever 5 is horizontally arranged, and the root of cantilever 5 is rotatably connected to the top of rotary table 4, and the protruding end of cantilever 5 can exceed the outer edge of work station support 8.The protruding end of cantilever 5 is provided with horizontal guide rail, and travelling trolley 6 travels on the horizontal guide rail, and travelling trolley 6 is connected to glue spraying head 7 at the bottom end, and glue spraying head 7 is connected to main body 3 through drag chain pipeline.

[0030] By driving cantilever 5 to move away by travelling crane chassis 2, full-length glue spraying operation can be carried out along the length direction of work station support 8; by rotatably connecting the root of cantilever 5 to the top of rotary table 4, two work station supports 8 on the two sides can be alternately sprayed, and in the process of feeding and discharging on one work station support 8, the other work station is in glue spraying operation, which greatly improves the operation efficiency.The glue spraying equipment for producing cold storage compartment insulation board of the present application can carry out glue spraying on cold storage compartment insulation boards of various specifications, and improves the operation efficiency and operation quality.

[0031] In a specific embodiment of the present application, as shown in Figure 2 Rotary table 4 is arranged at the front of travelling crane chassis 2, and rotary table 4 top is connected to the rotating disc of the root of cantilever 5 through rotary bearing 401.The outer ring of rotary bearing 401 is arranged as a large gear ring, a speed reducer motor is arranged on the rotating disc, a pinion 501 is mounted on the downward protruding end of the speed reducer motor, and the pinion 501 is engaged with the large gear ring.The speed reducer motor is driven by frequency conversion motor, and the rotating speed and the number of rotations can be controlled.

[0032] Through 360-degree rotary support composed of rotary bearing 401 and pinion 501, the swing angle of cantilever 5 can be adjusted according to actual conditions, and different wiring angles of glue spraying head 7 can be realized.

[0033] In a specific embodiment of the present application, as shown in Figure 1 Work station support 8 specifically adopts multi-roller support frame, and positioning assembly for aligning cold storage compartment insulation board panel 12 is arranged on the support frame.

[0034] Specifically, the positioning assembly comprises a first limiting piece 9 and a second limiting piece 10, the first limiting piece 9 is arranged at one end of the work station support 8 and is used for positioning the short side of the cold storage compartment insulation panel 12, and the second limiting piece 10 is arranged outside the work station support 8 and is used for positioning the long side of the cold storage compartment insulation panel 12. The first limiting piece 9 is a lifting positioning block driven by a gas cylinder to lift, when positioning is needed, the gas cylinder is upwardly pushed out, the positioning block is projected to support the roller shaft top surface, the cold storage compartment insulation panel 12 is positioned, and when positioning is not needed, the gas cylinder pulls back the positioning block. The structure of the second limiting piece 10 is consistent with that of the first limiting piece 9.

[0035] By arranging the positioning assembly on the work station support 8, the cold storage compartment insulation panel 12 needing to be coated with glue can be accurately positioned, and only the size parameters of the cold storage compartment insulation panel 12 of the specification need to be input into the touch screen of the electric control cabinet, and then the glue coating path can be automatically set. By adopting the telescopic first limiting piece 9 and the telescopic second limiting piece 10 for hidden positioning, the feeding and discharging are facilitated.

[0036] In a specific embodiment of the present application, as shown in Figure 1 and Figure 2 The glue coating head 7 is provided with a plurality of glue outlet heads, and the plurality of glue outlet heads are arranged in a straight row at equal intervals at the bottom of the glue coating head 7. Specifically, the number of glue outlet heads is 12.

[0037] Specifically, as shown in Figure 2 The present application further comprises a rotating unit 11, which is arranged between the top of the glue coating head 7 and the bottom end connecting rod of the walking trolley 6, and the rotating unit 11 can drive the glue coating head 7 to rotate by a set angle.

[0038] Specifically, as shown in Figure 2 The rotating unit 11 specifically adopts a rotary air cylinder, the cylinder base part of the rotary air cylinder is connected to the bottom end connecting rod of the walking trolley 6, and the rotary air cylinder rotating disc part is vertically downward and connected to the glue coating head 7.

[0039] Obviously, the rotating unit 11 can also adopt other rotating mechanisms for rotation, such as a rotary gear structure or a pin shaft sleeve rotating structure, which can all realize the swinging of the glue coating head 7, and similar structure deformation modes all fall within the protection scope of the present application.

[0040] By arranging a plurality of glue outlet heads on the glue coating head 7, the glue coating area of one walking can be increased, and the glue coating efficiency can be greatly improved. By arranging the rotating unit 11 between the glue coating head 7 and the walking trolley 6, the angle of the glue coating head 7 can be adjusted, and then the distance between adjacent glue lines can be adjusted. For the cold storage compartment insulation panel 12 with a small width, the glue coating head 7 can be rotated by 90 degrees and then directly walked along the long side of the panel for glue coating, without reciprocating along the wide side for glue coating, thereby improving the glue coating efficiency.

[0041] The working process of the glue pouring equipment for producing cold storage compartment insulation board is as follows: two cold storage compartment insulation board panels 12 are respectively placed on the work support 8, and the cold storage compartment insulation board panel 12 is accurately positioned on the work support 8 by lifting the first limiting part 9 and the second limiting part 10. The size parameters of the cold storage compartment insulation board panel 12 are input into the control cabinet touch screen, and the control system automatically calculates the glue pouring path of the glue pouring head 7 along the cold storage compartment insulation board panel 12. After starting, the cantilever 5 is generally vertically located above any work support 8 in the initial position; the trolley chassis 2 moves from one end to the other end with the main body 3, the rotating table 4 and the cantilever 5, the walking trolley 6 reciprocates in the horizontal track of the cantilever 5 at the extended end within the width range of the cold storage compartment insulation board panel 12, and the glue pouring head 7 pours glue onto the top surface of the cold storage compartment insulation board panel 12. As shown in the figure, therefore, a rhombus grid can be formed on the cold storage compartment insulation board panel 12 by the mutually intersecting glue pouring lines 13, and the glue pouring uniformity is good. Figure 3

[0042] The application further discloses a glue pouring equipment working method for producing cold storage compartment insulation board, which applies the glue pouring equipment for producing cold storage compartment insulation board in any one of the equipment embodiments to perform glue pouring work, and the cold storage compartment insulation board panels 12 on the work supports 8 on both sides can be glued by rotating the cantilever 5 by 180 degrees.

[0043] The glue pouring work on the work supports 8 of two work positions is performed by rotating the cantilever 5, so that one-to-two work can be realized, and the equipment utilization efficiency and work efficiency are improved.

[0044] In general glue pouring process, the automatic glue pouring machine only controls the glue flow per unit time, and the glue flow parameter needs to be set on the touch screen of the control system before the glue pouring work starts. Because the glue pouring head 7 generally reciprocates along the width direction of the cold storage compartment insulation board panel 12 to pour glue, the glue pouring line 13 becomes thick at the position of the edge of the cold storage compartment insulation board panel 12 due to the speed drop, and the glue pouring amount is large. In the subsequent hot pressing process of the cold storage compartment insulation board, glue overflow often occurs, the overflowed glue is hung on the glue plate sealed by negative pressure, and the glue plate for hot pressing needs to be maintained and cleaned frequently, otherwise the flatness of the cold storage compartment insulation board after compounding will be a problem, and the manual labor amount is greatly increased.

[0045] For the above problems, in a specific embodiment of the glue pouring equipment working method for producing cold storage compartment insulation board, a speed sensor 601 is arranged on the walking trolley 6, the speed sensor 601 feeds back the speed signal of the walking trolley 6 to the controller of the main body 3, and the controller controls the glue flow according to the speed signal.

[0046] ​Specifically, the normal setting speed of the walking trolley 6 is V0, and when the speed of the walking trolley 6 in the turning-back process is less than 80% of V0, the glue flow control is 50%-80% of the original flow. When the controller collects the actual speed of the walking trolley 6 less than 80% of V0, the frequency conversion motor of the screw pump is controlled to reduce the output speed, thereby reducing the glue flow. The size of the glue flow at the turning-back position is selected by the operator according to the type of adhesive and the size of the plate and the like and then input into the touch screen parameter box.

[0047] The present application can effectively reduce the edge overflow and improve the glue pouring quality by introducing the speed feedback to control the glue flow in the turning-back process of the walking trolley 6. The present application can achieve fast response of the system by using the simple and clear quantitative flow reduction method, thereby reducing the hysteresis effect.

[0048] The glue pouring equipment for producing cold storage compartment insulation boards can drive the cantilever 5 to move away through the trolley chassis 2, can perform full-length glue pouring along the length direction of the workbench support 8, and can alternately pour glue on the workbench supports 8 on both sides through the rotatable connection of the root of the cantilever 5 on the top of the rotary table 4. In the process of loading and unloading on one workbench support 8, the other workbench is in the glue pouring operation, which greatly improves the work efficiency. The glue pouring equipment for producing cold storage compartment insulation boards can pour glue on various specifications of cold storage compartment insulation boards, thereby improving the work efficiency and work quality. In addition, the 360-degree rotary support composed of the rotary bearing 401 and the pinion 501 can adjust the swing angle of the cantilever 5 according to the actual situation, thereby realizing different walking angles of the glue pouring head 7. The positioning assembly arranged on the workbench support 8 can accurately position the cold storage compartment insulation board panel 12 that needs to be poured with glue. Only the size parameters of the cold storage compartment insulation board panel 12 of the specification need to be input into the touch screen of the electric control cabinet, and the glue pouring path can be automatically set. The first limiting piece 9 and the second limiting piece 10 in the telescopic mode are used for hidden positioning, which is convenient for loading and unloading. The plurality of glue outlets arranged on the glue pouring head 7 can increase the glue pouring area of one walking, thereby greatly improving the glue pouring efficiency. The rotating unit 11 arranged between the glue pouring head 7 and the walking trolley 6 can adjust the angle of the glue pouring head 7, thereby adjusting the distance between adjacent glue lines. For the cold storage compartment insulation board panel 12 with small width, the glue pouring head 7 can be rotated by 90 degrees and directly walked along the long edge of the panel for glue pouring, without reciprocating along the wide edge for glue pouring, thereby improving the glue pouring efficiency.

[0049] The method for working the glue spraying equipment for producing cold storage compartment insulation boards, through the mode of rotating the cantilever 5, carries out glue spraying operation on the work station support 8 of two work stations, can realize one-drag-two operation, improves the equipment utilization efficiency and operation efficiency. The present application introduces the speed feedback mode to control the glue flow in the turning-back process of the walking trolley 6, which can effectively reduce the edge glue overflow and improve the glue spraying quality. The present application adopts the simple and clear quantitative flow reduction mode, which can realize the rapid response of the system and reduce the hysteresis effect.

[0050] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0051] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements of the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope determined by the claims of the present application.

Claims

1. A glue application apparatus for producing a cold storage compartment insulation panel, characterized by: The application relates to a glue pouring equipment for producing cold storage compartment heat-insulating plate, which comprises rails (1), a travelling crane chassis (2), a main body (3), a rotary table (4), a cantilever (5), a travelling trolley (6), a glue pouring head (7) and a work station support (8). Two rails (1) are arranged in parallel on the workshop ground, the work station support (8) for placing cold storage compartment heat-insulating plate panels (12) is arranged in parallel to the rails (1), and two work station supports (8) are symmetrically arranged on the two sides of the rails (1). The travelling crane chassis (2) travels along the rails (1), the main body (3) and the rotary table (4) are arranged on the travelling crane chassis (2), the root of the cantilever (5) is rotatably connected to the top of the rotary table (4), and the protruding end of the cantilever (5) can exceed the outer edge of the work station support (8). The protruding end of the cantilever (5) is provided with horizontal guide rails, the travelling trolley (6) travels on the horizontal guide rails, the travelling trolley (6) is connected with the glue pouring head (7) at the bottom end, and the glue pouring head (7) is connected with the main body (3) through a drag chain pipeline. The glue pouring head (7) is provided with a plurality of glue outlet heads which are arranged in a straight row at equal intervals at the bottom of the glue pouring head (7). The glue pouring head (7) is provided with a plurality of glue outlet heads which are arranged in a straight row at equal intervals at the bottom of the glue pouring head (7).

2. The gluing apparatus for producing thermal insulation panels for cold storage compartments according to claim 1, characterized in that: The rotary unit (11) is arranged between the top of the glue pouring head (7) and the connecting rod at the bottom end of the travelling trolley (6), and the rotary unit (11) can drive the glue pouring head (7) to rotate by a set angle.

3. The gluing apparatus for producing thermal insulation panels for cold storage compartments according to claim 1, characterized in that: The rotary table (4) is arranged at the front of the travelling crane chassis (2), the top of the rotary table (4) is connected with the rotating disc at the root of the cantilever (5) through a slewing bearing (401), the outer ring of the slewing bearing (401) is arranged as a large gear ring, a speed reducer motor is arranged on the rotating disc, a pinion (501) is mounted on the downward protruding end of the speed reducer motor, and the pinion (501) is engaged with the large gear ring.

4. The gluing apparatus for producing thermal insulation panels for cold storage compartments according to claim 3, characterized in that: The work station support (8) specifically adopts a support frame with multiple roller shafts, and the support frame is provided with a positioning assembly for aligning the cold storage compartment heat-insulating plate panels (12).

5. The glazing apparatus for producing thermal insulation panels for refrigerated vans according to claim 1, characterized in that: The positioning assembly comprises a first limiting piece (9) and a second limiting piece (10), the first limiting piece (9) is arranged at one end of the work station support (8) and positions the short side of the cold storage compartment heat-insulating plate panel (12), and the second limiting piece (10) is arranged at the outer side of the work station support (8) and positions the long side of the cold storage compartment heat-insulating plate panel (12).

6. A method of operating a glazing installation for the production of cold storage compartment insulation panels, characterised in that, The rotary unit (11) specifically adopts a rotary air cylinder, the cylinder base part of the rotary air cylinder is connected with the connecting rod at the bottom end of the travelling trolley (6), and the rotating disc part of the rotary air cylinder is vertically downward and connected with the glue pouring head (7). The glue pouring equipment is used for carrying out glue pouring operation, and the cold storage compartment heat-insulating plate panels (12) on the two work station supports (8) can be glued by rotating the cantilever (5) by 180 degrees.

7. The method of claim 6, wherein: The walking trolley (6) is provided with a speed sensor (601), which feeds the speed signal of the walking trolley (6) to the controller of the main body (3), and the controller controls the glue injection flow according to the speed signal.

8. The method of claim 7, wherein the method further comprises: The normal constant-speed straight motion speed of the walking trolley (6) is V0, and when the speed of the walking trolley (6) in the returning process is less than 80% of V0, the glue injection flow is controlled to be 50%-80% of the original flow.

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