EVA glue powder processing device for seamless wall cloth

Abstract

The application provides an EVA glue powder processing device for seamless wall cloth, relates to the technical field of seamless wall cloth processing, and comprises a driving winding frame, which is arranged on a conveying frame and is in parallel with a film coating mold frame; a plurality of winding rollers controlled by air cylinders are arranged in the driving winding frame; a stable pressing frame is arranged between the film coating mold frame and the conveying frame; the stable pressing frame is driven by a hydraulic cylinder arranged thereon; the plurality of winding rollers are controlled by corresponding air cylinders and are distributed in different degrees of misalignment with each other, so that the tension of the base cloth is adjusted, the base cloth is pressed on the conveying frame by the stable pressing frame, the straight traction conveying mode is converted into the unit position extrusion limiting conveying mode during the film coating and gluing, the state of the base cloth is switched from the straight traction conveying state to the natural straight state, and the problem of inconsistent gluing adhesion strength caused by the deformation of the EVA glue covering layer due to the stress deformation of the base cloth before the glue cools and forms is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to seamless wall cloth processing technical field, more specifically, especially to the EVA glue powder processing device of seamless wall cloth. BACKGROUND

[0002] Part of the reason for the popularity of hot melt adhesive seamless wall cloth is that there is no other joint except the starting point and the end point in the whole application space of hot melt adhesive seamless wall cloth, and it does not need to be spliced. At the same time, it can also be made without splicing or with less splicing through the following methods of making wall skirt or upper line or middle horizontal splicing, avoiding or reducing the cracking of ordinary wall paper and wall cloth splicing joint.

[0003] For the processing and manufacturing process of hot melt adhesive seamless wall cloth, it can be roughly summarized as 1, base cloth whole weft, 2, EVA glue powder treatment, 3, glue cooling forming and the like. Among them, the EVA glue powder treatment is a key step, and if the treatment is not in place, it is easy to cause inconsistent adhesion strength and air drum problems.

[0004] In the prior art, there are common processing methods of heating and melting EVA glue powder and then scraping it on the base cloth, and heating and plasticizing EVA glue powder and then extruding it into a mold and then film coating on the base cloth. They only differ in the specific gluing method, and the forward transmission method of the base cloth in the gluing process is all transmission rollers. The forward traction of the transmission roller is always constant, which is easy to cause the base cloth to deform under stress before the glue is cooled and formed, causing the EVA glue cover layer to deform, and causing inconsistent adhesion strength. SUMMARY

[0005] Technical problem: The purpose of the present application is to solve the problems existing in the prior art: the forward transmission method of the base cloth in the gluing process is all transmission rollers, and the forward traction is always constant, which is easy to cause the base cloth to deform under stress before the glue is cooled and formed, causing the EVA glue cover layer to deform, and causing inconsistent adhesion strength. The EVA glue powder processing device of seamless wall cloth is proposed.

[0006] The specific technical scheme is as follows: the EVA glue powder treatment device of seamless wall cloth comprises a film coating mold frame, the film coating mold frame is arranged on the conveying frame and performs film coating and gluing on the base cloth conveyed forward by the conveying frame; the device further comprises a driving winding frame, the driving winding frame is arranged on the conveying frame and is distributed in parallel with the film coating mold frame; a plurality of winding rollers controlled by air cylinders are arranged in the driving winding frame; a stable pressing frame is arranged between the film coating mold frame and the conveying frame; the stable pressing frame is slidably connected with the film coating mold frame and is driven by the hydraulic cylinder arranged on the stable pressing frame to move forward synchronously with the conveying frame; the stable pressing frame comprises a height adjusting rod, a side connecting rod and a pressing plate; two pressing plates are arranged and are distributed in parallel; the pressing plates are perpendicular to the transmission direction of the conveying frame; two side connecting rods are arranged at the ends of the pressing plates; the two side connecting rods and the two pressing plates form a limiting unit in the shape of a Chinese character ''kou''; and four height adjusting rods are arranged at the four corners of the limiting unit.

[0007] The driving winding frame cooperates with the conveying frame to stably pull the base cloth forward, the plurality of winding rollers are controlled by the corresponding air cylinders to be distributed in different positions, the tightness of the base cloth is adjusted, the height adjusting rod is started, the limiting unit in the shape of a Chinese character ''kou'' formed by the two side connecting rods and the two pressing plates is pressed on the base cloth, the base cloth is pressed on the conveying frame by the stable pressing frame, the stable pressing frame and the conveying frame move forward synchronously by the hydraulic cylinder to perform film coating and gluing, the base cloth is coated and glued in the natural straight state, the coating quality of the base cloth is improved, the transmission mode of the straight pulling is changed into the transmission mode of the unit position extrusion, the straight pulling state of the base cloth is changed into the natural straight state, the deformation of the EVA glue covering layer caused by the stress of the base cloth before the glue is cooled and formed is avoided, and the problem of inconsistent adhesive strength is solved.

[0008] In the technical scheme of the EVA glue powder treatment device of seamless wall cloth, the film coating mold frame comprises a top box, a side fixed box and a fixed base; the fixed base is arranged at the bottom of the conveying frame and is used for supporting the conveying frame; two side fixed boxes are arranged on the two sides of the conveying frame; the side fixed boxes are arranged on the fixed base and are provided with a control button group; the control button group comprises a plurality of control buttons and is used for controlling the operation of the film coating mold frame; the top box is arranged on the upper side of the conveying frame and is supported by the side fixed box; the film coating machine is arranged on the top box; and the stable pressing frame is arranged on the lower side of the top box.

[0009] In a further technical solution of the present application, the laminating die frame further comprises an EVA glue powder feeding assembly for providing EVA glue powder for the laminating die frame and heating the EVA glue powder during the providing process; the EVA glue powder feeding assembly is composed of a feeding box, a buffer cavity, a preheating box and heating guide pipes; the buffer cavity is arranged inside the feeding box, a sealing cover is arranged on the outside of the buffer cavity, and a feeding opening is arranged on the sealing cover; the preheating box is arranged inside the feeding box at the side of the buffer cavity, and the preheating box and the buffer cavity are in communication; the heating guide pipes are arranged in multiple numbers and are arranged side by side at the bottom of the preheating box and are in communication with the preheating box; the heating guide pipes are connected to the laminating machine; the pipe wall of the heating guide pipes is provided with multiple heating guide wires; the heating guide pipes are provided with a piston head controlled by air pressure, the air pressure inside the heating guide pipes is adjusted by an air extractor, and the piston head is controlled to move to feed the laminating machine; a one-way feeding valve is arranged at the connection between the heating guide pipes and the preheating box, and a one-way discharging valve is arranged at the connection between the heating guide pipes and the laminating machine.

[0010] The EVA glue powder enters the buffer cavity through the feeding opening, the buffer cavity guides the EVA glue powder into the preheating box through a guide auger, the EVA glue powder is preheated to a plasticized state in the preheating box, and finally the air pressure inside the heating guide pipes is adjusted by the air extractor to control the piston head to move and disperse into multiple heating guide pipes, so as to realize refined heating, and at the same time, the piston head is used to clean the heating guide pipes during feeding, so as to realize contact area reduction type cleaning feeding and avoid the problems of screw feeding, large contact area and easy residue.

[0011] In the technical solution of the EVA glue powder processing device of the seamless wall cloth of the present application, the conveying frame comprises a conveying belt for conveying the base cloth forward; the conveying belt is composed of rubber conveying belt bodies connected in a closed loop, a plurality of mounting cavities are arranged on the outer surface of the rubber conveying belt bodies at equal intervals, and unit driving rollers are rotatably mounted in the mounting cavities; the unit driving rollers are independently powered to rotate by the independent power devices arranged therein, so as to locally fine-tune the base cloth on the basis of the whole conveying belt conveying the base cloth forward.

[0012] Further, the conveying frame utilizes the rubber conveying belt body to stably pull the base fabric forward, after the base fabric enters the inside of the laminating mold frame, a plurality of winding rollers are controlled by corresponding cylinders, and are distributed in different degrees of misalignment with each other, so that the tightness of the base fabric is adjusted, and local fine adjustment of the base fabric is performed by using a plurality of unit driving rollers to independently provide power, so that the base fabric is adjusted in tightness, and the base fabric is pressed on the conveying frame by using the stable pressing frame, so that after the base fabric is extruded and limited by the stable pressing frame and the conveying frame in the natural straightening state, the stable pressing frame and the conveying frame are synchronously moved forward by using the hydraulic cylinder to perform laminating and gluing, the base fabric is laminated and glued in the natural straightening state, and the gluing quality of the base fabric is improved.

[0013] In a further technical solution of the application, a plurality of longitudinal reinforcing steel wires are inserted into the body of the rubber conveying belt body in longitudinal equal interval distribution, and a plurality of transverse reinforcing steel wires are inserted into the body of the rubber conveying belt body in transverse equal interval distribution; the longitudinal reinforcing steel wires and the transverse reinforcing steel wires are arranged to improve the stability of the forward transmission of the rubber conveying belt body.

[0014] In a further technical solution of the application, the conveying frame further comprises a support table, the support table is provided with two parallel support tables, and the support table is installed on the base plate through screws and the mounting plate; the support table is supported on the rubber conveying belt body at the end away from the base plate, the support table is provided with a main driving roller on the rubber conveying belt body, and the rubber conveying belt body is provided with a driving gear at the end thereof.

[0015] In an optimized technical solution of the application, a driving chain is fixed on the inner surface of the rubber conveying belt body, the driving chain is engaged with the driving gear, and after the main driving roller is driven to rotate by the motor installed at the end thereof, the driving chain and the driving gear are used to drive the rubber conveying belt body to rotate.

[0016] For, although the transmission roller can be additionally provided with a temperature adjusting device to perform subsequent temperature adjusting treatment on the EVA glue, the temperature adjusting medium is specific, and the base fabric is easily deformed under stress before the glue is cooled and formed, causing the EVA glue covering layer to deform, and the adhesion strength of the glue is inconsistent.

[0017] In a further technical solution of the present application, the unit drive roller comprises an outer sleeve and an inner drive shaft; the inner drive shaft is movably inserted into the outer sleeve, and the inner drive shaft is composed of an inner drive shaft body and a plurality of piston rod structures movably connected to the inner drive shaft body; the plurality of piston rod structures are arrayed between the outer sleeve and the inner drive shaft; the inner drive shaft is rotatably installed in the cavity through a bearing disc; the outer sleeve is composed of a sleeve body and an inner cavity formed in the sleeve body wall; the inner cavity is filled with a cooling medium, the sleeve body wall is provided with a plurality of piston cavities, and the plurality of piston cavities correspond to the plurality of piston rod structures one by one; the piston cavities are connected to the inner cavity, and the piston rod structures are movably inserted into the piston cavities; the piston cavities are provided with limiting rings at their ports, and the limiting rings are used to prevent the piston rod structures from falling off; the independent power device is an independent motor, and a drive shaft is fixedly arranged on the output shaft of the independent motor, the drive shaft is fixedly connected with the inner drive shaft, and power transmission connection is completed.

[0018] Further, the independent motor of the independent power device rotates with the inner drive shaft through the drive shaft, the drive shaft moves the plurality of piston rod structures in the piston cavities to the ports of the piston cavities through the limiting rings to drive the outer sleeve to rotate, and in the movement process of the piston rod structures in the piston cavities, the cooling medium filled in the inner cavity is shaken to mix the cooled cooling medium and the uncooled cooling medium after heat conduction, so as to ensure the cooling effect, improve the cooling quality, avoid the deformation of the EVA glue covering layer caused by the stress deformation of the base cloth before the glue is cooled and formed, and solve the problem of inconsistent glue adhesion strength.

[0019] In the optimized technical solution of the present application, the piston rod structure is provided with a support rod, one end of the support rod is provided with a hinge ball II, and the hinge ball II is hingedly connected to the inner drive shaft; the other end of the support rod is provided with a hinge ball I, the hinge ball I is hingedly connected to a piston disc, and the piston disc is movably inserted into the piston cavity.

[0020] Advantages, compared with the prior art, the present application has:

[0021] 1) The active winding frame cooperates with the conveying frame to complete the stable forward traction of the base cloth by multiple winding rollers. After the base cloth enters the inside of the film coating mold frame, the multiple winding rollers are controlled by the corresponding cylinders to achieve different degrees of misalignment distribution between each other, complete the adjustment of the tightness of the base cloth traction, and at the same time, the height adjusting rod is started. The "mouth" frame limiting unit composed of two side connecting rods and two pressing plates is pressed on the base cloth, the base cloth is pressed on the conveying frame by the stable pressing frame, and after the base cloth in the "mouth" frame limiting unit is extruded and limited by the stable pressing frame and the conveying frame in the natural straightening state, the stable pressing frame and the conveying frame are driven by the hydraulic cylinder to move forward synchronously for film coating and gluing, realizing the film coating and gluing of the base cloth in the natural straightening state, improving the gluing quality of the base cloth, and changing the straightening traction transmission mode to the unit position extrusion limiting transmission mode during film coating and gluing, realizing the switching of the base cloth from the straightening traction state to the natural straightening state, avoiding the deformation of the EVA glue covering layer caused by the stress of the base cloth before the glue cools and forms, and the problem of inconsistent gluing strength;

[0022] 2) The EVA glue powder enters the slow feeding cavity through the feeding port, the slow feeding cavity guides the EVA glue powder into the preheating box through the material guiding auger, and the EVA glue powder is preheated to form a plasticized state in the preheating box. Finally, the air pressure in the heating material guiding pipe is adjusted by the air extractor to complete the control of the piston head moving and dispersing into multiple heating material guiding pipes, realizing fine heating. Combined with the action of the piston head, the heating material guiding pipe is cleaned during feeding, realizing the cleaning and feeding with reduced contact area, avoiding the problems of large contact area and easy residue caused by screw feeding;

[0023] 3) The conveying frame uses a rubber conveyor belt to stably pull the base cloth forward. After the base cloth enters the inside of the film coating mold frame, multiple winding rollers are controlled by corresponding cylinders to achieve different degrees of misalignment distribution between each other, complete the adjustment of the tightness of the base cloth traction, and at the same time, multiple unit driving rollers independently provide power for local fine adjustment of the base cloth. On the basis of adjusting the tightness of the base cloth, the base cloth is straightened, and the base cloth is pressed on the conveying frame by the stable pressing frame. After the base cloth is extruded and limited by the stable pressing frame and the conveying frame in the natural straightening state, the stable pressing frame and the conveying frame are driven by the hydraulic cylinder to move forward synchronously for film coating and gluing, realizing the film coating and gluing of the base cloth in the natural straightening state, improving the gluing quality of the base cloth;

[0024] 4), independent motor on independent power device rotates through driving shaft and inner drive shaft, driving shaft moves in the piston cavity through a plurality of piston rod structures at its port by limiting ring to drive the outer sleeve to rotate, and in the moving process of the piston rod structure in the piston cavity, the cooling medium filled in the inner cavity is shaken to mix the cooling medium after heat conduction and the cooling medium before heat conduction, so as to ensure the cooling effect, improve the cooling quality, avoid the deformation of the EVA glue covering layer caused by the stress deformation of the base cloth before the glue is cooled and formed, and the problem of inconsistent glue adhesion strength. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structure schematic view of the EVA glue powder treatment device of the seamless wall cloth of the application.

[0026] Figure 2 It is Figure 1 The structure schematic view of the assembly of the middle spraying film mold frame and the conveying frame.

[0027] Figure 3 It is Figure 1 The structure schematic view of the conveying frame.

[0028] Figure 4 It is Figure 3 The partial structure schematic view of the conveying belt.

[0029] Figure 5 It is Figure 4 The enlarged structure schematic view of A.

[0030] Figure 6 It is the structure schematic view of the EVA glue powder feeding assembly in the EVA glue powder treatment device of the seamless wall cloth of the application.

[0031] Figure 7 It is the structure schematic view of the stable pressing frame in the EVA glue powder treatment device of the seamless wall cloth of the application.

[0032] Figure 8 It is Figure 4 The structure schematic view of the unit driving roller.

[0033] Figure 9 It is Figure 8 The enlarged structure schematic view of B.

[0034] Figure 10 It is Figure 4 The schematic view of the outer sleeve of the unit driving roller descending after being stressed.

[0035] Figure 11 It is Figure 10 The enlarged structure schematic view of C.

[0036] Figure 12 It isFigure 8 Structure diagram of the inner drive shaft;

[0037] Figure 13 For Figure 12 Structure diagram of the inner drive shaft;

[0038] Figure 14 For Figure 8 Structure diagram of the unit drive roller along its radial direction;

[0039] Figure 15 For Figure 10 Structure diagram of the unit drive roller along its radial direction after the outer sleeve moves down under force.

[0040] In the figure, the annotations are as follows:

[0041] The rubber film mold frame 100; the top box 110, the installed plate 120, the EVA glue powder feeding assembly 130 (the slow feeding cavity 131, the preheating box 132, the heating guide pipe 133), the control button group 140, the side fixed box 150, the fixed base 160, the stable pressing frame 170 (the height adjusting rod 171, the side connecting rod 172, the pressing plate 173);

[0042] The conveying frame 200; the conveying belt 210, the main drive roller 220, the drive chain 230, the support table 240, the base plate 250, the installation plate 260; the rubber conveying belt body 211, the unit drive roller 212, the installation cavity 213, the longitudinal reinforcing steel wire 214, the transverse reinforcing steel wire 215; the outer sleeve 2121 (the sleeve body 21211, the inner cavity 21212, the piston cavity 21213), the inner drive shaft 2122 (the piston rod structure 21221, the inner drive shaft body 21222, the piston disc 21223, the articulated ball I 21224, the support rod 21225, the articulated ball II 21226), the independent motor 2123, the drive shaft 2124, the bearing disc 2125;

[0043] The main drive winding frame 300. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. 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.

[0045] Embodiments of the present application

[0046] As Figure 1 And Figure 7The device for processing EVA glue powder of seamless wall cloth is shown, which comprises a film coating mold frame 100, the film coating mold frame 100 is arranged on the conveying frame 200, and the film coating mold frame 100 is used for coating glue on the base cloth conveyed forward by the conveying frame 200; the device further comprises a driving winding frame 300, the driving winding frame 300 is arranged on the conveying frame 200 and is distributed in parallel with the film coating mold frame 100; a plurality of winding rollers controlled by air cylinders are arranged in the driving winding frame 300;

[0047] Further, the base cloth is placed on the conveying frame 200, the base cloth is conveyed forward by the power provided by the conveying frame 200, and the driving winding frame 300 cooperates with the conveying frame 200 to complete stable traction of the base cloth forward; when the base cloth enters the film coating mold frame 100, the film coating mold frame 100 is used for coating glue by using a film coating machine arranged in the film coating mold frame 100 (it is to be noted that the film coating machine is a prior art, which can be directly purchased on the market or the parts are purchased and assembled, and the related description can be found in the corresponding journal literature; the film coating machine is not protected by the present application, and will not be described in detail here);

[0048] A stable pressing frame 170 is arranged between the film coating mold frame 100 and the conveying frame 200; the stable pressing frame 170 is slidably connected with the film coating mold frame 100 and is driven by a hydraulic cylinder arranged in the stable pressing frame 170 to move forward synchronously with the conveying frame 200;

[0049] Further, the driving winding frame 300 cooperates with the conveying frame 200 to complete stable traction of the base cloth forward, the plurality of winding rollers are controlled by corresponding air cylinders to be distributed in different degrees of misalignment after the base cloth enters the film coating mold frame 100, the tightness of the base cloth is adjusted, the base cloth is pressed on the conveying frame 200 by the stable pressing frame 170, the base cloth is extruded and limited in the natural straight state by the stable pressing frame 170 and the conveying frame 200, the stable pressing frame 170 and the conveying frame 200 are moved forward synchronously by the hydraulic cylinder to complete film coating, the base cloth is coated in the natural straight state, the quality of the coating is improved, the mode of straight traction is changed to the mode of extrusion and limiting in a unit position, the state of the base cloth is switched from the straight traction state to the natural straight state, the deformation of the EVA glue covering layer caused by stress of the base cloth before the glue is cooled and formed is avoided, and the problem of inconsistent adhesion strength is avoided;

[0050] The stable pressing frame 170 comprises a height adjusting rod 171, a side connecting rod 172 and a pressing plate 173;

[0051] The pressing plates 173 are provided with two and are in parallel distribution; the pressing plates 173 are perpendicular to the transmission direction of the transmission frame 200;

[0052] The side connecting rods 172 are provided with two and are respectively fixed at the end of the pressing plate 173; the two side connecting rods 172 and the two pressing plates 173 form a "mouth" frame limiting unit;

[0053] The height adjusting rods 171 are provided with four and are distributed at the four corners of the limiting unit;

[0054] Further, the multiple winding rollers are controlled by the corresponding cylinders, and the different degrees of misalignment distribution between each other are adjusted, so as to complete the adjustment of the tension of the base cloth. The height adjusting rod 171 is started, and the "mouth" frame limiting unit composed of the two side connecting rods 172 and the two pressing plates 173 is pressed on the base cloth, so as to complete the pressing of the base cloth on the transmission frame 200 by the stable pressing frame 170. After the base cloth is extruded and limited by the stable pressing frame 170 and the transmission frame 200 in the natural straightening state, the stable pressing frame 170 and the transmission frame 200 are synchronously moved forward by the hydraulic cylinder to carry out the membrane coating and gluing, so as to realize the membrane coating and gluing of the base cloth in the natural straightening state, and improve the gluing quality of the base cloth.

[0055] It should be noted that the height adjusting rod 171 can be a pneumatic telescopic rod, or a hydraulic telescopic rod, or an electric telescopic rod, etc. It is not limited to the specific structure, as long as it can meet the requirement that the "mouth" frame limiting unit composed of the two side connecting rods 172 and the two pressing plates 173 is pressed on the base cloth. Here, the hydraulic telescopic rod is preferred, which can be directly purchased on the market, and the relevant description can be found in the corresponding journal literature, which is not protected by the present application, and will not be described in detail here.

[0056] In more detail, the active winding frame 300 uses multiple winding rollers in conjunction with the conveyor frame 200 to stably pull the base fabric forward. After the base fabric enters the coating mold frame 100, the multiple winding rollers are controlled by corresponding cylinders to achieve different degrees of staggered distribution, thereby adjusting the tension of the base fabric traction. At the same time, the height adjustment rod 171 is activated. The height adjustment rod 171 drives a "U"-shaped limiting unit composed of two side connecting rods 172 and two pressing plates 173 to press onto the base fabric. This completes the process of using the stable pressing frame 170 to press the base fabric onto the conveyor frame 200, achieving the "U"-shaped limiting unit... After the base fabric inside the unit is squeezed and limited by the stabilizing pressing frame 170 and the conveying frame 200 in a naturally taut state, the stabilizing pressing frame 170 and the conveying frame 200 are moved forward synchronously by the hydraulic cylinder to perform coating and adhesive application. This achieves coating and adhesive application of the base fabric in a naturally taut state, which improves the adhesive application quality of the base fabric. During coating and adhesive application, the taut traction material transfer method is changed to a unit position compression and limiting material transfer method. This ensures that the taut traction material transfer state of the base fabric is switched to a naturally taut state, avoiding deformation of the EVA adhesive coating layer caused by stress on the base fabric before the adhesive is applied or before the adhesive has cooled and solidified, thus preventing inconsistent adhesive bonding strength.

[0057] Embodiments of the present invention

[0058] like Figure 2 As shown: The coating mold frame 100 includes a top box 110, a side fixing box 150 and a fixing base 160;

[0059] A fixed base 160 is provided at the bottom of the conveyor frame 200 to support the conveyor frame 200;

[0060] There are two side fixing boxes 150, which are distributed on both sides of the conveyor frame 200. The side fixing boxes 150 are mounted on the fixed base 160. The side fixing boxes 150 are equipped with a control button group 140, which includes multiple control buttons. The control buttons are used to control the operation of the coating mold frame 100.

[0061] The top box 110 is set on the upper side of the conveyor frame 200 and supported by the side fixing box 150; while the coating machine is installed on the top box 110, and the stabilizing pressing frame 170 is installed on the lower side of the top box 110.

[0062] Embodiments of the present invention

[0063] like Figure 2 and Figure 6 As shown: The coating mold frame 100 also includes an EVA powder feeding assembly 130 (the EVA powder feeding assembly 130 is installed in the top box 110 via a mounting plate 120). The EVA powder feeding assembly 130 is used to supply EVA powder to the coating mold frame 100 and heat-treats the EVA powder during the supply process.

[0064] Embodiments of the present application

[0065] As shown in Figure 2 and Figure 6 : the EVA glue powder feeding assembly 130 is composed of a feeding tank, a buffer cavity 131, a preheating tank 132 and a heating guide pipe 133;

[0066] The buffer cavity 131 is opened in the inside of the feeding tank, and a sealing cover is arranged on the outside of the buffer cavity 131, and a feeding opening is opened in the sealing cover;

[0067] The preheating tank 132 is arranged in the inside of the feeding tank at the side of the buffer cavity 131, and the preheating tank 132 and the buffer cavity 131 are in communication;

[0068] The heating guide pipe 133 is provided with a plurality of pipes arranged side by side at the bottom of the preheating tank 132 and in communication with the preheating tank 132; the heating guide pipe 133 is connected to the film coating machine; a plurality of heating guide wires are arranged in the pipe wall of the heating guide pipe 133; a piston head controlled by air pressure is arranged in the heating guide pipe 133, and the air pressure in the heating guide pipe 133 is adjusted by the air blower to control the movement of the piston head to supply the film coating machine with materials;

[0069] The heating guide pipe 133 is provided with a one-way feeding valve at the connection with the preheating tank 132, and is provided with a one-way discharging valve at the connection with the film coating machine.

[0070] Further, the EVA glue powder enters the inside of the buffer cavity 131 through the feeding opening, the buffer cavity 131 guides the EVA glue powder into the inside of the preheating tank 132 through the material guide auger, the EVA glue powder is preheated to form a plasticized state in the preheating tank 132, and finally the air pressure in the heating guide pipe 133 is adjusted by the air blower to control the movement of the piston head to disperse the unitized EVA glue powder into the plurality of heating guide pipes 133, so as to realize refined heating, and at the same time, the piston head is combined to clean the heating guide pipe 133 during feeding, so as to realize the cleaning of the feeding with reduced contact area, and avoid the problems of screw feeding, large contact area and easy residue.

[0071] Embodiments of the present application

[0072] As shown in Figures 3-5 : the conveying frame 200 comprises a conveying belt 210, and the conveying belt 210 is used for conveying the base cloth forward;

[0073] The conveying belt 210 is composed of a rubber conveying belt body 211 connected in a closed loop, a plurality of mounting cavities 213 are arranged on the outer surface of the rubber conveying belt body 211 at equal intervals, and a unit driving roller 212 is rotatably mounted in each mounting cavity 213;

[0074] The unit driving roller 212 is independently powered to rotate by the independent power device arranged thereon, and completes the local fine adjustment of the base fabric by independently providing power to the local multiple unit driving rollers 212 on the basis of the forward conveying of the base fabric by the conveying belt 210 as a whole.

[0075] Further, after the conveying frame 200 stably pulls the base fabric forward by the rubber conveying belt body 211, after the base fabric enters the inside of the laminating mold frame 100, the multiple winding rollers are controlled by the corresponding cylinders to be distributed in different degrees of misalignment with each other, the tightness of the base fabric is adjusted, and the base fabric is adjusted in the whole latitude on the basis of the local fine adjustment of the base fabric by independently providing power to the local multiple unit driving rollers 212, the base fabric is pressed on the conveying frame 200 by the stable pressing frame 170, after the base fabric is extruded and limited by the stable pressing frame 170 and the conveying frame 200 in the natural straightening state, the laminating and gluing are performed by driving the stable pressing frame 170 and the conveying frame 200 to move forward synchronously by the hydraulic cylinder, the laminating and gluing of the base fabric in the natural straightening state are realized, and the gluing quality of the base fabric is improved.

[0076] Embodiments of the present application

[0077] As shown in Figure 4 and Figure 5 , the rubber conveying belt body 211 is internally inserted with multiple longitudinal reinforcing steel wires 214 distributed in longitudinal equal intervals and multiple transverse reinforcing steel wires 215 distributed in transverse equal intervals, and the longitudinal reinforcing steel wires 214 and the transverse reinforcing steel wires 215 are arranged to improve the stability of the forward transmission of the rubber conveying belt body 211.

[0078] Embodiments of the present application

[0079] As shown in Figure 3 , the conveying frame 200 further comprises support tables 240, the support tables 240 are arranged in parallel and two in number, and are installed on the base plate 250 by cooperation of screws and mounting plates 260 (the base plate 250 is installed on the laminating mold frame 100);

[0080] The support tables 240 are supported on the rubber conveying belt body 211 at the end away from the base plate 250, the support tables 240 are provided with main driving rollers 220 on the rubber conveying belt body 211, and the rubber conveying belt body 211 is provided with a driving gear at the end portion.

[0081] Embodiments of the present application

[0082] As shown in Figure 3As shown: the rubber conveyor belt body 211 inside surface is fixed with drive chain 230, drive chain 230 and drive gear meshing, after the motor installed at the end of the main drive roller 220 driven rotation, using drive chain 230 and drive gear cooperation complete main drive roller 220 for driving rubber conveyor belt body 211 rotation.

[0083] Further, start the motor, motor output power driven gear rotation, using drive chain 230 and drive gear cooperation, to achieve the rubber conveyor belt body 211 rotation, realize in the transmission frame 200 using rubber conveyor belt body 211 forward stable traction base cloth, after the base cloth into the film die frame 100 inside, film die frame 100 using its inside setting film coating machine for film coating.

[0084] Embodiments of the present application

[0085] For, although the transmission roller can be added temperature regulating device for EVA glue subsequent temperature regulating treatment, but the temperature regulating medium specific, and then easy to cause in the glue cooling forming before the base cloth stress deformation caused by EVA glue cover layer deformation, the problem of uneven adhesion strength.

[0086] As Figures 8-15 As shown: the unit drive roller 212 contains sleeve 2121 and inner drive shaft 2122;

[0087] The inner drive shaft 2122 is movably inserted into the outer sleeve 2121, and the inner drive shaft 2122 is composed of an inner drive shaft body 21222 and a plurality of piston rod structures 21221 connected to the inner drive shaft body 21222 by a plurality of ball joints; the plurality of piston rod structures 21221 are arrayed between the outer sleeve 2121 and the inner drive shaft 2122; the inner drive shaft 2122 is rotatably installed in the cavity 213 through the bearing disc 2125;

[0088] The outer sleeve 2121 is composed of a sleeve body 21211 and an inner cavity 21212 formed in the wall of the sleeve body 21211; the inner cavity 21212 is filled with a cooling medium (the specific cooling medium circulation replacement method is prior art, for example, adding a connecting pipe, which is not protected by the present application, and will not be described in detail here); a plurality of piston cavities 21213 are formed in the wall of the sleeve body 21211, and the plurality of piston cavities 21213 correspond to the plurality of piston rod structures 21221 one by one; the piston cavities 21213 communicate with the inner cavity 21212, and the piston rod structures 21221 are movably inserted into the piston cavities 21213; the piston cavities 21213 are provided with limiting rings at their ports, which prevent the piston rod structures 21221 from falling off;

[0089] The independent power device is an independent motor 2123, a driving rotating shaft 2124 is fixed on an output shaft of the independent motor 2123, the driving rotating shaft 2124 is fixedly connected with the inner driving shaft 2122, and power transmission connection is completed.

[0090] Further, the independent motor 2123 on the independent power device rotates through the driving rotating shaft 2124 and the inner driving shaft 2122, the driving rotating shaft 2124 moves in the piston cavity 21213 to the port thereof through the limiting ring to drive the outer sleeve 2121 to rotate (for example, the non-rotating state of Figure 14 , and the change of the rotating state of Figure 15 ; due to the combination of the main driving frame 300 and the conveying frame 200 to convey the base cloth, the base cloth is taut, the outer sleeve 2121 is pressed downward, and the gravity of the outer sleeve 2121 itself, the state of Figure 15 , that is, the piston rod structure 21221 at the bottom moves at the limit port of the piston cavity 21213 to drive the outer sleeve 2121 to rotate through the limiting ring; at the same time, independent power is provided by the local multiple unit driving rollers 212 to locally fine-tune the base cloth, which can be replaced by the scheme that the outer sleeve 2121 and the inner driving shaft 2122 are integrally arranged), and in the moving process of the piston rod structure 21221 in the piston cavity 21213, the cooling medium filled in the inner cavity 21212 is shaken, the cooling medium after heat conduction and the cooling medium before heat conduction are mixed, so as to guarantee the cooling effect, improve the cooling quality, avoid the deformation of the EVA glue covering layer caused by the stress of the base cloth before the glue is cooled and formed, and the problem of inconsistent glue adhesion strength.

[0091] The embodiment of the application

[0092] As shown in Figure 13 : the piston rod structure 21221 is provided with a supporting rod 21225, one end of the supporting rod 21225 is provided with a hinged ball II 21226, and the hinged ball II 21226 is hingedly connected to the inner driving shaft 2122; the other end of the supporting rod 21225 is provided with a hinged ball I 21224, the hinged ball I 21224 is hingedly connected to the piston disc 21223, and the piston disc 21223 is movably inserted into the piston cavity 21213.

[0093] The working principle of the application is:

[0094] The active winding frame 300 cooperates with the conveying frame 200 to complete the forward stable traction of the base fabric by using multiple winding rollers. After the base fabric enters the inside of the film coating mold frame 100, the multiple winding rollers are controlled by corresponding air cylinders to achieve different degrees of misalignment distribution between each other, complete the adjustment of the tightness of the base fabric traction, and at the same time, the height adjusting rod 171 is started. The height adjusting rod 171 drives a "mouth" frame limiting unit composed of two side connecting rods 172 and two pressing plates 173 to press on the base fabric, and completes the pressing of the base fabric on the conveying frame 200 by using the stable pressing frame 170. After the base fabric in the "mouth" frame limiting unit is extruded and limited by the stable pressing frame 170 and the conveying frame 200 in the natural straightening state, the stable pressing frame 17 and the conveying frame 200 are driven by the hydraulic cylinder to move forward synchronously for film coating and gluing, realizing the film coating and gluing of the base fabric in the natural straightening state, improving the gluing quality of the base fabric, and converting the straightening traction transmission mode into the unit position extrusion and limiting transmission mode during film coating and gluing. The base fabric straightening traction state is switched to the natural straightening state, avoiding the deformation of the EVA glue covering layer caused by the stress of the base fabric before the glue cools and forms, and the problem of inconsistent gluing strength.

[0095] The EVA glue powder enters the buffer cavity 131 through the feeding port, the buffer cavity 131 guides the EVA glue powder into the preheating box 132 through the material guiding auger, and the EVA glue powder is preheated to a plasticized state in the preheating box 132. Finally, the air pressure in the heating material guiding pipe 133 is adjusted by using the air extractor, the piston head is controlled to move and disperse units into multiple heating material guiding pipes 133, the heating is refined, and the heating material guiding pipe 133 is cleaned during feeding by combining the action of the piston head, the contact area is reduced, and the feeding is cleaned, avoiding the problems of large contact area and easy residue caused by screw feeding.

[0096] After the conveying frame 200 uses the rubber conveyor belt body 211 to stably pull the base fabric forward, multiple winding rollers are controlled by corresponding air cylinders to achieve different degrees of misalignment distribution between each other, complete the adjustment of the tightness of the base fabric traction, and at the same time, multiple unit driving rollers 212 independently provide power for local fine adjustment of the base fabric. On the basis of adjusting the tightness of the base fabric, the base fabric is straightened, and the base fabric is pressed on the conveying frame 200 by using the stable pressing frame 170. After the base fabric is extruded and limited by the stable pressing frame 170 and the conveying frame 200 in the natural straightening state, the stable pressing frame 17 and the conveying frame 200 are driven by the hydraulic cylinder to move forward synchronously for film coating and gluing, realizing the film coating and gluing of the base fabric in the natural straightening state, improving the gluing quality of the base fabric.

[0097] The independent motor 2123 on the independent power device rotates the inner driving shaft 2122 through the driving rotating shaft 2124. The driving rotating shaft 2124 moves inside the piston cavity 21213 through the limiting ring at the port of the piston rod structure 21221 to drive the outer sleeve 2121 to rotate. During the movement of the piston rod structure 21221 inside the piston cavity 21213, the cooling medium filled in the inner cavity 21212 is shaken to mix the cooling medium after heat conduction and the cooling medium before heat conduction, so as to ensure the cooling effect, improve the cooling quality, avoid the deformation of the EVA glue covering layer caused by the stress deformation of the base cloth before the glue is cooled and formed, and the problem of inconsistent glue adhesion strength.

[0098] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for the purpose of limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. An EVA glue powder processing device for seamless wall cloth, comprising a film coating mold frame (100) arranged on a conveying frame (200) and used for film coating and gluing of a base body conveyed forward by the conveying frame (200); characterized in that the device further comprises a driving winding frame (300) arranged on the conveying frame (200) in parallel with the film coating mold frame (100); a plurality of winding rollers controlled by air cylinders are arranged inside the driving winding frame (300); A stable pressing frame (170) is arranged between the film coating mold frame (100) and the conveying frame (200); the stable pressing frame (170) is slidingly connected with the film coating mold frame (100) and is driven by a hydraulic cylinder arranged thereon to move forward synchronously with the conveying frame (200); The stable pressing frame (170) comprises a height adjusting rod (171), a side connecting rod (172) and a pressing plate (173); The pressing plate (173) is provided with two pressing plates (173) arranged in parallel; the pressing plate (173) is perpendicular to the transmission direction of the conveying frame (200); The side connecting rod (172) is provided with two side connecting rods (172) respectively fixed at the end of the pressing plate (173); the two side connecting rods (172) and the two pressing plates (173) form a limiting unit of a "mouth" frame; The height adjusting rod (171) is provided with four height adjusting rods (171) arranged at the four corners of the limiting unit; The conveying frame (200) comprises a conveying belt (210) used for conveying the base cloth forward; the conveying belt (210) is composed of a rubber conveying belt body (211) connected in a closed loop at the head and tail; a plurality of mounting cavities (213) are arranged on the outer surface of the rubber conveying belt body (211) at equal intervals; a unit driving roller (212) is rotatably arranged in each mounting cavity (213); the unit driving roller (212) is independently driven by an independent power device arranged thereon to locally fine-tune the base cloth on the basis of the whole conveying belt (210) conveying the base cloth forward.

2. The EVA glue powder processing device for seamless wall cloth according to claim 1, characterized in that the film coating mold frame (100) comprises a top box (110), a side fixed box (150) and a fixed base (160); The fixed base (160) is arranged at the bottom of the conveying frame (200) and used for supporting the conveying frame (200); The side fixed box (150) is provided with two side fixed boxes (150) arranged on both sides of the conveying frame (200); The side fixed box (150) is arranged on the fixed base (160) and is provided with a control key group (140) arranged thereon; the control key group (140) comprises a plurality of control buttons used for controlling the operation of the film coating mold frame (100); The top box (110) is arranged on the upper side of the conveying frame (200) and is supported by the side fixed box (150); a film coating machine is arranged on the top box (110) and the stable pressing frame (170) is arranged on the lower side of the top box (110). ​ ​ 3. The EVA glue powder processing device for seamless wall cloth according to claim 2, characterized in that, The film laminating mold frame (100) further comprises an EVA glue powder feeding assembly (130) for providing EVA glue powder for the film laminating mold frame (100) and heating the EVA glue powder during the providing process.

4. The EVA glue powder processing device for seamless wall cloth according to claim 3, wherein, The EVA glue powder feeding assembly (130) is composed of a feeding box, a buffer cavity (131), a preheating box (132) and a heating guide pipe (133); The buffer cavity (131) is arranged inside the feeding box, and a sealing cover is arranged on the outside of the buffer cavity (131), and a feeding opening is arranged on the sealing cover; The preheating box (132) is arranged inside the feeding box at the side of the buffer cavity (131), and the preheating box (132) and the buffer cavity (131) are in communication; The heating guide pipe (133) is provided with a plurality of pipes arranged side by side at the bottom of the preheating box (132) and in communication with the preheating box (132); the heating guide pipe (133) is connected to the film laminating machine; a plurality of heating guide wires are arranged inside the pipe wall of the heating guide pipe (133); a piston head controlled by air pressure is arranged inside the heating guide pipe (133), and the air pressure inside the heating guide pipe (133) is adjusted by an air extractor to control the movement of the piston head to supply the film laminating machine with glue powder; A one-way feeding valve is arranged at the connection between the heating guide pipe (133) and the preheating box (132), and a one-way discharging valve is arranged at the connection between the heating guide pipe (133) and the film laminating machine.

5. The EVA glue powder processing device for seamless wall cloth according to claim 1, characterized in that, A plurality of longitudinally arranged longitudinally reinforcing steel wires (214) and a plurality of transversely arranged transversely reinforcing steel wires (215) are arranged inside the body of the rubber conveyor belt (211) at equal intervals; the longitudinally reinforcing steel wires (214) and the transversely reinforcing steel wires (215) are arranged to improve the stability of the forward transmission of the rubber conveyor belt (211).

6. The EVA glue powder processing device for seamless wall cloth according to claim 1, wherein, The conveying frame (200) further comprises support tables (240) arranged in parallel at two positions; the support tables (240) are installed on the base plate (250) by cooperating with the mounting plate (260) through screws. The support tables (240) are supported on the rubber conveyor belt (211) at the end away from the base plate (250), and the main drive roller (220) is installed on the rubber conveyor belt (211) at the end of the support table (240); the drive gear is arranged at the end of the rubber conveyor belt (211).

7. The EVA glue powder processing device for seamless wall cloth according to claim 6, characterized in that, The drive chain (230) is fixed on the inner surface of the rubber conveyor belt (211), and the drive chain (230) is engaged with the drive gear; when the motor installed at the end of the main drive roller (220) is driven to rotate, the main drive roller (220) is driven to rotate by the cooperation of the drive chain (230) and the drive gear.

8. The EVA glue powder processing device for seamless wall cloth according to claim 1, wherein, The unit drive roller (212) comprises an outer sleeve (2121) and an inner drive shaft (2122). The inner drive shaft (2122) is movably inserted into the outer sleeve (2121), and the inner drive shaft (2122) is composed of an inner drive shaft body (21222) and a plurality of piston rod structures (21221) which are pivotally connected to the inner drive shaft body (21222); the plurality of piston rod structures (21221) are arrayed between the outer sleeve (2121) and the inner drive shaft (2122); and the inner drive shaft (2122) is rotatably installed in the cavity (213) through the bearing disc (2125). The outer sleeve (2121) is composed of a sleeve body (21211) and an inner cavity (21212) which is formed in the wall of the sleeve body (21211); the inner cavity (21212) is filled with a cooling medium, and a plurality of piston cavities (21213) are formed in the wall of the sleeve body (21211) and correspond to the plurality of piston rod structures (21221) in a one-to-one manner; the piston cavities (21213) are in communication with the inner cavity (21212), and the piston rod structures (21221) are movably inserted into the piston cavities (21213); and a limiting ring is arranged at the port of the piston cavity (21213) to prevent the piston rod structure (21221) from falling off. The independent power device is an independent motor (2123), and a driving shaft (2124) is fixedly arranged on the output shaft of the independent motor (2123) and is fixedly connected with the inner drive shaft (2122) to complete power transmission connection.

9. The EVA glue powder processing device for seamless wall cloth according to claim 8, characterized in that, The piston rod structure (21221) is provided with a support rod (21225), one end of the support rod (21225) is provided with a pivot ball II (21226), and the pivot ball II (21226) is pivotally connected to the inner drive shaft (2122); the other end of the support rod (21225) is provided with a pivot ball I (21224), and the pivot ball I (21224) is pivotally connected to a piston disc (21223), and the piston disc (21223) is movably inserted into the piston cavity (21213).

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