Novel glue melting and coating system

Abstract

The utility model discloses a novel glue melting and coating system which comprises a glue melting mechanism, a glue coating mechanism and a glue conveying pipe, the glue melting mechanism comprises a base and at least two glue melting devices arranged on the base, and the two glue melting devices are the same in structure and each comprise a glue barrel, a pressing disc assembly and a lifting assembly. The pressing disc assembly at least comprises a pressing disc and a heating element arranged in the pressing disc, the lifting assembly can drive the pressing disc to extend into the glue barrel and abut against the upper surface of glue, and the glue is melted under the action of the heating element; the gluing mechanism comprises a gluing seat and an upper bearing seat arranged on the gluing seat, at least two glue inlet holes are formed in the upper bearing seat, and the two glue inlet holes are communicated with the two glue barrels through two glue conveying pipes respectively. Therefore, the heating element is arranged on the pressure plate of the glue melting mechanism, the glue is melted according to the required amount during production, and then the melted glue is conveyed to the gluing mechanism through the glue conveying pipe, so that the overall structure of the gluing mechanism is simplified, and meanwhile, the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of glue coating, in particular to a novel melt glue coating system. Background Art

[0002] This section only provides background information related to the present application to help those skilled in the art understand the present application more thoroughly and accurately, and it is not necessarily prior art.

[0003] Glue coating machine is also called coating machine, which is a kind of mechanical equipment mainly used to apply liquid glue on the surface of board, textile, paper box or leather. Most of the existing glue coating machines are equipped with glue temporary storage box, and heating resistance wire and stirring component are installed in the glue temporary storage box. When the board needs to be coated, the stirring component is started to stir and mix the glue in the glue temporary storage box, and the heating resistance wire is started to heat the glue. The heated glue is output to the glue coating shaft through the output pipe to coat the board.

[0004] Such arrangement, due to the provision of the glue temporary storage box, the heating resistor wire and the stirring assembly, causes the overall volume of the glue coating machine to be larger and the structure to be complex. Meanwhile, the increase of the above-mentioned structural components also increases the manufacturing cost of the entire glue coating machine. Utility Model Content

[0005] In order to overcome the defects of the above-mentioned prior art, the utility model provides a novel melt glue coating system, in which a heating element is arranged on a pressure plate of a melt glue device. Under the action of the heating element, only the upper layer of glue reaches the melting point and melts, and only as much glue as needed is melted during production. The melted glue is then transported to the glue coating mechanism through a glue delivery pipe, thereby eliminating the need to set structural components such as a glue temporary storage box, a heating resistor wire, and a stirring assembly on the glue coating mechanism, thereby simplifying the overall structure of the glue coating mechanism and reducing the production cost.

[0006] The technical solution adopted by the utility model to solve the problem is:

[0007] A new type of melt glue coating system, comprising:

[0008] The glue melting mechanism comprises a base and at least two glue melting devices disposed on the base and arranged side by side in a transverse manner. The two glue melting devices have the same structure and both comprise a glue barrel, a pressure plate assembly and a lifting assembly. The pressure plate assembly comprises at least a pressure plate and a heating element disposed in the pressure plate. The lifting assembly can drive the pressure plate to extend into the glue barrel and contact with the upper surface of the glue, and melt the glue under the action of the heating element. A first glue is stored in one of the glue barrels, and a second glue is stored in the other glue barrel.

[0009] The glue coating mechanism comprises a glue coating seat, an upper bearing seat arranged on the glue coating seat, and a lower bearing seat arranged on the glue coating seat, wherein the upper bearing seat is provided with at least two glue inlet holes and glue inlet channels respectively connected to the two glue inlet holes, the glue coating seat is provided with a glue outlet hole and a glue outlet channel connected to the glue inlet channel, and the glue inlet channel is connected to the glue outlet channel;

[0010] At least two rubber delivery pipes are provided; one end of one of the rubber delivery pipes extends into one of the rubber barrels and communicates with the first colloid, and the other end of the rubber delivery pipe is connected to one of the rubber inlet holes; one end of the other rubber delivery pipe extends into another of the rubber barrels and communicates with the second colloid, and the other end of the other of the rubber delivery pipe is connected to another of the rubber inlet holes.

[0011] Furthermore, it also includes a plurality of first heating tubes, which are inserted into the glue coating seat and arranged at intervals from each other.

[0012] Furthermore, it also includes a rubber-coated shaft, a first bearing is provided in the upper bearing seat, a second bearing is provided in the lower bearing seat, one end of the rubber-coated shaft is passed through the first bearing to be rotatably set on the upper bearing seat, and the other end of the rubber-coated shaft is passed through the second bearing to be rotatably set on the lower bearing seat.

[0013] Furthermore, it also includes a second heating tube, which is inserted into the glue coating shaft.

[0014] Furthermore, the glue melting mechanism further comprises a control box arranged on the base, wherein:

[0015] The said glue melting device is provided with three groups, one group of said glue melting device is arranged at one side of said control box, and the said glue barrel thereof has a first colloid placed therein; the other two groups of said glue melting device are arranged at the other side of said control box, and the said glue barrel thereof has a second colloid placed therein;

[0016] Three rubber delivery pipes are provided, and three rubber inlet holes are provided on the upper bearing seat, and the three rubber inlet holes are respectively connected with the three rubber barrels through the three rubber delivery pipes.

[0017] Furthermore, the first colloid is EVA glue, and the second colloid is PUR glue.

[0018] Furthermore, a valve body corresponding to the glue inlet hole is provided on the upper bearing seat, and the valve body is a cylinder. The cylinder includes a cylinder body and a piston rod arranged on the cylinder body and retractable relative to the cylinder body, and the piston rod can block or open the glue inlet hole.

[0019] Furthermore, it also includes a glue door shaft that is rotatably arranged on the glue coating seat and close to the glue coating shaft, and a power device that drives the glue door shaft to rotate, wherein:

[0020] The glue coating seat is provided with a glue outlet cavity, the glue outlet hole is provided in the glue outlet cavity; the glue door shaft is rotatably arranged in the glue outlet cavity;

[0021] The glue door shaft is a semi-shaft structure and forms a glue outlet between it and the glue coating shaft; when the power device drives the glue door shaft to rotate, it can drive it to conflict with or separate from the glue coating shaft, thereby adjusting the opening size of the glue outlet.

[0022] Furthermore, the pressure plate assembly further includes a glue delivery device, which includes a guide seat, a gear pump and a drive motor arranged on the pressure plate in sequence from bottom to top, wherein:

[0023] The pressure plate is provided with a first through hole, the guide seat is provided with a second through hole, and the first through hole, the second through hole and the gear pump inlet are connected in sequence;

[0024] The guide seat is also provided with a third through hole and a glue delivery hole, the gear pump outlet, the third through hole and the glue delivery hole are connected in sequence; one end of the glue delivery pipe is connected with the glue delivery hole;

[0025] The output shaft of the driving motor is drivingly connected to the input end of the gear pump. Under the action of the driving motor, the melted colloid in the glue barrel can be drawn out and sequentially passed through the first through hole, the second through hole, the gear pump inlet, the gear pump outlet, the third through hole, the glue delivery hole and the glue delivery pipe and output.

[0026] In summary, the new type of melt glue coating system of the utility model has the following beneficial effects:

[0027] (1) By arranging the heating element on the pressure plate of the glue melting mechanism, under the action of the heating element, only the upper layer of glue reaches the melting point and melts, and the amount of glue required for production is melted, and then the melted glue is transported to the glue coating mechanism through the glue delivery pipe, so there is no need to set structural components such as glue temporary storage box, heating resistance wire and stirring assembly on the glue coating mechanism, thereby simplifying the overall structure of the glue coating mechanism and reducing the production cost.

[0028] (2) By arranging a plurality of first heating tubes on the glue coating seat and a second heating tube on the glue coating shaft, the internal colloid can be heated under the action of the first heating tubes and the second heating tubes to ensure that the colloid is always in a molten state to prevent the colloid from solidifying. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the melt glue coating system of the utility model;

[0030] Figure 2 This is a structural diagram of the glue melting mechanism in the glue melting and coating system of the utility model (the glue barrel is hidden);

[0031] Figure 3 This is a structural schematic diagram of the glue coating mechanism in the glue melting and coating system of the utility model;

[0032] Figure 4 It is a partial structural schematic diagram of the gluing mechanism of the utility model;

[0033] Figure 5 for Figure 4 A schematic diagram of the structure from another perspective;

[0034] Figure 6 It is a cross-sectional schematic diagram of the gluing mechanism of the utility model.

[0035] The meanings of the reference numerals are as follows:

[0036] 1. Glue melting mechanism; 11. First glue melting device; 111. Glue barrel; 112. Pressure plate; 113. Guide seat; 114. Gear pump; 115. Driving motor; 116. Lifting bracket; 117. Lifting cylinder; 118. Glue delivery connector; 12. Second glue melting device; 13. Third glue melting device; 14. Control box; 15. Base; 2. Glue coating mechanism; 21. Glue coating seat; 211. Glue outlet cavity; 212. Glue outlet hole; 22. Upper bearing seat; 23. Lower bearing seat; 24. Glue coating shaft; 241. Feed Glue hole assembly; 2411, first glue inlet hole; 2412, second glue inlet hole; 2413, third glue inlet hole; 25, glue inlet joint assembly; 251, first glue inlet joint; 252, second glue inlet joint; 253, third glue inlet joint; 26, valve body; 27, power unit; 271, drive cylinder; 272, transmission shaft; 28, glue door shaft; 291, first heating tube; 292, second heating tube; 3, glue delivery hose assembly; 31, first glue delivery hose; 32, second glue delivery hose; 33, third glue delivery hose. DETAILED DESCRIPTION

[0037] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] See also Figure 1-6The utility model provides a novel glue melting and coating system, including a glue melting mechanism 1, a glue coating mechanism 2 and a glue delivery pipe assembly 3, wherein the glue melting mechanism 1 includes a base 15, a control box 14 arranged on the base 15, a first glue melting device 11 arranged on the base 15 and located on one side of the control box 14, and a second glue melting device 12 and a third glue melting device 13 arranged on the base 15 and located on the other side of the control box 14 and arranged side by side; wherein the first glue melting device 11, the second glue melting device 12 and the third glue melting device 13 The glue devices 13 have the same structure and include a glue barrel 111, a pressure plate assembly and a lifting assembly. The pressure plate assembly includes at least a pressure plate 112 and a heating element (not shown in the figure) disposed in the pressure plate 112. The lifting assembly can drive the pressure plate 112 to extend into the glue barrel 111 and contact the upper surface of the glue, and melt the glue under the action of the heating element; the glue coating mechanism 2 includes a glue coating seat 21, an upper bearing seat 22 disposed on the glue coating seat 21, and a lower bearing seat 23 disposed on the glue coating seat 21. The support seat 22 is provided with a glue inlet hole assembly 241 and a glue inlet channel connected to the glue inlet hole assembly 241, and the glue coating seat 21 is provided with a glue outlet hole 212 and a glue outlet channel connected to the glue inlet channel, and the glue inlet channel is connected to the glue outlet channel; the glue inlet hole assembly 241 includes a first glue inlet hole 2411, a second glue inlet hole 2412 and a third glue inlet hole 2413; the glue delivery pipe assembly 3 includes a first glue delivery pipe 31, a second glue delivery pipe 32 and a third glue delivery pipe 33, and one end of the first glue delivery pipe 31 extends into The first glue delivery pipe 31 is in the glue barrel 111 of the first glue melting device 11 and is connected to the glue, and the other end of the first glue delivery pipe 31 is connected to the first glue inlet hole 2411; one end of the second glue delivery pipe 32 extends into the glue barrel 111 of the second glue melting device 12 and is connected to the glue, and the other end of the second glue delivery pipe 32 is connected to the second glue inlet hole 2412; one end of the third glue delivery pipe 33 extends into the glue barrel 111 of the third glue melting device 13 and is connected to the glue, and the other end of the third glue delivery pipe 33 is connected to the third glue inlet hole 2413.

[0041] Therefore, by arranging the heating element on the pressure plate of the glue melting mechanism 1, under the action of the heating element, only the upper layer of glue reaches the melting point and melts, and the amount of glue needed during production is melted, and then the melted glue is transported to the glue coating mechanism 2 through the glue delivery pipe, so there is no need to set structural components such as glue temporary storage box, heating resistor wire and stirring assembly on the glue coating mechanism 2, thereby simplifying the overall structure of the glue coating mechanism 2 and reducing the production cost.

[0042] In this embodiment, the glue barrel 111 of the first glue melting device 11 stores EVA glue, and the glue barrels 111 of the second glue melting device 12 and the third glue melting device 13 store PUR glue.

[0043] Therefore, when the requirements for sheet coating are low, EVA colloid can be used for coating, thereby reducing production costs; when the requirements for sheet coating are high, PUR colloid can be used for coating, thereby improving coating quality and effect. Users can choose according to their needs, which is more convenient.

[0044] See also Figure 3-6 The glue coating mechanism 2 also includes a glue coating shaft 24, a first bearing is provided in the upper bearing seat 22, and a second bearing is provided in the lower bearing seat 23. One end of the glue coating shaft 24 is passed through the first bearing to be rotatably set on the upper bearing seat 22, and the other end of the glue coating shaft 24 is passed through the second bearing to be rotatably set on the lower bearing seat 23.

[0045] In addition, it also includes a plurality of first heating tubes 291 and a second heating tube 292 . The plurality of first heating tubes 291 are disposed in the glue coating seat 21 and are arranged at intervals from each other. The second heating tube 292 is disposed in the glue coating shaft 24 .

[0046] Therefore, by setting a plurality of first heating tubes 291 on the glue coating seat 21 and a second heating tube 292 on the glue coating shaft 24, the internal colloid can be heated under the action of the first heating tubes 291 and the second heating tubes 292 to ensure that the colloid is always in a molten state to prevent the colloid from solidifying.

[0047] Furthermore, a valve body 26 corresponding to the glue inlet hole assembly 241 is provided on the upper bearing seat 22, wherein the valve body 26 is a cylinder and includes a cylinder body and a piston rod arranged on the cylinder body and retractable relative to the cylinder body, and the piston rod can block or open the glue inlet hole, thereby realizing the switching of different glues.

[0048] Furthermore, the glue coating mechanism 2 also includes a glue door shaft 28 rotatably set on the glue coating seat 21 and close to the glue coating shaft 24, and a power device 27 that drives the glue door shaft 28 to rotate. The glue coating seat 21 is provided with a glue outlet cavity 211, and the glue outlet hole 212 is provided in the glue outlet cavity 211; the glue door shaft 28 is rotatably set in the glue outlet cavity 211; the glue door shaft 28 is a semi-axis structure and a glue outlet is formed between the glue door shaft 28 and the glue coating shaft 24; when the power device 27 drives the glue door shaft 28 to rotate, it can drive it to conflict with or separate from the glue coating shaft 24, thereby realizing the adjustment of the opening size of the glue outlet.

[0049] In this embodiment, the power device 27 includes a driving cylinder 271 and a transmission shaft 272, one end of the transmission shaft 272 is connected to the driving cylinder 271, and the other end of the transmission shaft 272 is connected to one end of the glue door shaft 28; when the driving cylinder 271 drives the transmission shaft 272 to rotate, it can drive the glue door shaft 28 to rotate and thereby achieve interference or separation with the glue coating shaft 24.

[0050] In addition, the glue coating mechanism 2 also includes a glue feed joint assembly 25, which includes a first glue feed joint 251 arranged on the first glue feed hole 2411, a second glue feed joint 252 arranged on the second glue feed hole 2412, and a third glue feed joint 253 arranged on the third glue feed hole 2413. One end of the first glue delivery pipe 31 is sleeved on the first glue feed joint 251 to achieve communication with the first glue feed hole 2411, one end of the second glue delivery pipe 32 is sleeved on the second glue feed joint 252 to achieve communication with the second glue feed hole 2412, and one end of the third glue delivery pipe 33 is sleeved on the third glue feed joint 253 to achieve communication with the third glue feed hole 2413.

[0051] Referring to 2-3, the lifting assembly includes a lifting bracket 116 arranged on the base 15 and a lifting cylinder 117 arranged at the bottom of both ends of the lifting bracket 116. The pressure plate 112 is connected to the lifting bracket 116 through a connecting rod. Under the action of the lifting cylinder 117, the lifting bracket 116 can be driven to move up and down to realize the lifting and lowering movement of the pressure plate 112. In addition, the pressure plate assembly also includes a glue conveying device, which includes a guide seat 113, a gear pump 114 and a driving motor 115 which are sequentially arranged on the pressure plate 112 from bottom to top, a first through hole is provided on the pressure plate 112, a second through hole is provided on the guide seat 113, and the first through hole, the second through hole and the inlet of the gear pump 114 are connected in sequence; in addition, a third through hole and a glue delivery hole are also provided on the guide seat 113, the outlet of the gear pump 114, the third through hole and the glue delivery hole are connected in sequence, one end of the glue delivery pipe is connected to the glue delivery hole, and the output shaft of the driving motor 115 is drivingly connected to the input end of the gear pump 114; thus, under the action of the driving motor 115, the melted colloid in the glue barrel 111 can be extracted and sequentially passed through the first through hole, the second through hole, the inlet of the gear pump 114, the outlet of the gear pump 114, the third through hole, the glue delivery hole and the glue delivery pipe and output.

[0052] In this embodiment, a glue delivery connector 118 is further included, which is disposed on the glue delivery hole. One end of the glue delivery pipe is sleeved on the glue delivery connector 118 to achieve communication with the glue delivery hole.

[0053] In summary, the new type of melt glue coating system of the utility model has the following beneficial effects:

[0054] (i) By arranging the heating element on the pressure plate 112 of the glue melting mechanism 1, under the action of the heating element, only the upper layer of glue reaches the melting point and melts, and the amount of glue required for production is melted, and then the melted glue is transported to the glue coating mechanism 2 through the glue delivery pipe, so there is no need to set structural components such as glue temporary storage box, heating resistance wire and stirring assembly on the glue coating mechanism 2, thereby simplifying the overall structure of the glue coating mechanism 2 and reducing the production cost.

[0055] (ii) By arranging a plurality of first heating tubes 291 on the glue coating seat 21 and a second heating tube 292 on the glue coating shaft 24, the internal colloid can be heated under the action of the first heating tubes 291 and the second heating tubes 292 to ensure that the colloid is always in a molten state to prevent the colloid from solidifying.

[0056] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A new type of melt glue coating system, characterized in that: include: The glue melting mechanism comprises a base and at least two glue melting devices disposed on the base and arranged side by side in a transverse manner. The two glue melting devices have the same structure and both comprise a glue barrel, a pressure plate assembly and a lifting assembly. The pressure plate assembly comprises at least a pressure plate and a heating element disposed in the pressure plate. The lifting assembly can drive the pressure plate to extend into the glue barrel and contact with the upper surface of the glue, and melt the glue under the action of the heating element. A first glue is stored in one of the glue barrels, and a second glue is stored in the other glue barrel. The glue coating mechanism comprises a glue coating seat, an upper bearing seat arranged on the glue coating seat, and a lower bearing seat arranged on the glue coating seat, wherein the upper bearing seat is provided with at least two glue inlet holes and glue inlet channels respectively connected to the two glue inlet holes, the glue coating seat is provided with a glue outlet hole and a glue outlet channel connected to the glue inlet channel, and the glue inlet channel is connected to the glue outlet channel; At least two rubber delivery pipes are provided; one end of one of the rubber delivery pipes extends into one of the rubber barrels and communicates with the first colloid, and the other end of the rubber delivery pipe is connected to one of the rubber inlet holes; one end of the other rubber delivery pipe extends into another of the rubber barrels and communicates with the second colloid, and the other end of the other of the rubber delivery pipe is connected to another of the rubber inlet holes.

2. The melt adhesive coating system according to claim 1, characterized in that: It also includes a plurality of first heating tubes, which are inserted into the glue coating seat and arranged at intervals from each other.

3. The melt adhesive coating system according to claim 1 or 2, characterized in that: It also includes a rubber-coated shaft, wherein a first bearing is arranged in the upper bearing seat, and a second bearing is arranged in the lower bearing seat. One end of the rubber-coated shaft is passed through the first bearing to be rotatably arranged on the upper bearing seat, and the other end of the rubber-coated shaft is passed through the second bearing to be rotatably arranged on the lower bearing seat.

4. The melt adhesive coating system according to claim 3, characterized in that: It also includes a second heating tube, which is inserted into the glue coating shaft.

5. The melt adhesive coating system according to claim 1, characterized in that: The glue melting mechanism further comprises a control box arranged on the base, wherein: The said glue melting device is provided with three groups, one group of said glue melting device is arranged at one side of said control box, and the said glue barrel thereof has a first colloid placed therein; the other two groups of said glue melting device are arranged at the other side of said control box, and the said glue barrel thereof has a second colloid placed therein; Three rubber delivery pipes are provided, and three rubber inlet holes are provided on the upper bearing seat, and the three rubber inlet holes are respectively connected with the three rubber barrels through the three rubber delivery pipes.

6. The melt adhesive coating system according to claim 5, characterized in that: The first colloid is EVA glue, and the second colloid is PUR glue.

7. The melt adhesive coating system according to claim 1, characterized in that: The upper bearing seat is provided with a valve body corresponding to the glue inlet hole. The valve body is a cylinder. The cylinder includes a cylinder body and a piston rod arranged on the cylinder body and retractable relative to the cylinder body. The piston rod can block or open the glue inlet hole.

8. The melt adhesive coating system according to claim 3, characterized in that: It also includes a glue door shaft that is rotatably arranged on the glue coating seat and close to the glue coating shaft, and a power device that drives the glue door shaft to rotate, wherein: The glue coating seat is provided with a glue outlet cavity, the glue outlet hole is provided in the glue outlet cavity; the glue door shaft is rotatably arranged in the glue outlet cavity; The glue door shaft is a semi-shaft structure and forms a glue outlet between it and the glue coating shaft; when the power device drives the glue door shaft to rotate, it can drive it to conflict with or separate from the glue coating shaft, thereby adjusting the opening size of the glue outlet.

9. The melt adhesive coating system according to claim 1, characterized in that: The pressure plate assembly also includes a glue delivery device, which includes a guide seat, a gear pump and a drive motor arranged on the pressure plate from bottom to top, wherein: The pressure plate is provided with a first through hole, the guide seat is provided with a second through hole, and the first through hole, the second through hole and the gear pump inlet are connected in sequence; The guide seat is also provided with a third through hole and a glue delivery hole, the gear pump outlet, the third through hole and the glue delivery hole are connected in sequence; one end of the glue delivery pipe is connected with the glue delivery hole; The output shaft of the driving motor is drivingly connected to the input end of the gear pump. Under the action of the driving motor, the melted colloid in the glue barrel can be drawn out and sequentially passed through the first through hole, the second through hole, the gear pump inlet, the gear pump outlet, the third through hole, the glue delivery hole and the glue delivery pipe and output.

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