Novel hot melt adhesive machine with pressure disc mechanism

Abstract

This utility model discloses a novel pressure plate mechanism for melting adhesive, comprising a pressure plate body, a flow guide seat, and a driving device. A heating element is integrated into the inner bottom of the pressure plate body. The pressure plate body has an installation groove and a first adhesive inlet channel communicating with the installation groove. The flow guide seat is installed within the installation groove. The flow guide seat has a second adhesive inlet channel and a first adhesive outlet channel, which are connected to each other. The driving device includes a gear pump mounted on the flow guide seat. The gear pump has an adhesive inlet hole and an adhesive outlet hole, which are connected to the second adhesive inlet channel and the adhesive outlet hole is connected to the first adhesive outlet channel. Therefore, by integrating the heating element into the inner bottom of the pressure plate body, assembly of the heating element is eliminated, which is more convenient. Furthermore, since the heating element does not occupy the installation groove space of the pressure plate body, the flow guide seat can be installed within the installation groove, thereby reducing the overall height of the pressure plate mechanism, making the structure more compact, and reducing costs.

Description

Technical Field

[0001] This utility model relates to the technical field of hot melt adhesive equipment, specifically to a novel pressure plate mechanism for hot melt adhesive and a hot melt adhesive machine. Background Technology

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

[0003] Existing hot melt glue machines typically include a pressure plate mechanism for hot-pressing and melting the glue in the glue bucket. The pressure plate mechanism includes a pressure plate body, a heating plate, and a pressure plate cover. The pressure plate body has an installation groove, the heating plate is placed in the installation groove, and the pressure plate cover is placed on top of the pressure plate body to press and fix the heating plate.

[0004] This setup, with the heating plate and pressure plate body being separate, requires the pressure plate cover to press and fix them, making assembly more complicated. In addition, since the heating plate is placed in the mounting slot of the pressure plate body, it occupies the internal space of the pressure plate body, which means that the flow guide seat can only be installed on the pressure plate cover, thus increasing the overall height of the pressure plate mechanism and increasing costs. Utility Model Content

[0005] To overcome the defects of the prior art, this utility model provides a novel pressure plate mechanism and hot melt glue machine. By integrating the heating element into the inner bottom of the pressure plate body, the heating element does not need to be assembled, which is more convenient. In addition, since the heating element does not occupy the mounting slot space of the pressure plate body, the flow guide seat can be installed in the mounting slot, thereby reducing the overall height of the pressure plate mechanism, making the structure more compact and reducing costs.

[0006] The technical solution adopted by this utility model to solve its problem is: A novel pressure plate mechanism for melt adhesive application includes: The pressure plate body has a heating element integrated at its bottom; the pressure plate body has an installation groove and a first glue inlet channel communicating with the installation groove. A flow guide seat is installed in the mounting groove; the flow guide seat has a second glue inlet channel and a first glue outlet channel, and the second glue inlet channel is connected to the first glue inlet channel. The driving device includes a gear pump mounted on the guide seat; the gear pump has an inlet hole and an outlet hole, the inlet hole is connected to the second inlet channel and the outlet hole is connected to the first outlet channel; When the pressure plate body extends into the glue bucket and the bottom surface of the pressure plate body comes into contact with the glue in the glue bucket, the heating element melts the glue into adhesive. Then, under the action of the driving device, the adhesive flows out sequentially through the first glue inlet channel, the second glue inlet channel, the glue inlet hole, the glue outlet hole, and the first glue outlet channel.

[0007] As an optional implementation, the pressure plate body has a first through groove that connects to the mounting groove and is arranged vertically, and the first through groove forms the first glue inlet channel; the guide seat has a second through groove and a third through groove that are arranged vertically, and the second through groove and the third through groove are arranged at intervals; the second through groove forms the second glue inlet channel, and the third through groove forms the first glue outlet channel.

[0008] As an optional implementation, the flow guide seat has a fourth channel that connects to the third channel and is arranged horizontally, and the fourth channel forms a second glue outlet channel.

[0009] As an optional implementation, it also includes two glue outlet joints disposed on the flow guide seat and arranged at intervals. The fourth channel includes a main support channel and two branch channels that are connected to the main support channel and arranged at intervals. The main support channel is connected to the third channel, and the two branch channels are respectively connected to the two glue outlet joints.

[0010] As an optional implementation, a reflux assembly is also included, the reflux assembly comprising a flow guide block mounted on the flow guide seat and a reflux valve disposed on the flow guide block, wherein: The flow guide seat has a fifth channel that connects to the third channel and is arranged horizontally, and a sixth channel that connects to the second channel and is arranged horizontally. The fifth channel and the sixth channel respectively form a first return channel and a second return channel. The flow guide block has a connecting channel located between and connected to the first return channel and the second return channel. The return valve is used to open or close the connecting channel to control whether the first return channel and the second return channel are connected.

[0011] As an optional implementation, it also includes an exhaust regulating rod, wherein a seventh through groove arranged vertically is provided on the pressure plate body, the seventh through groove forming an exhaust channel; the exhaust regulating rod is inserted into the exhaust channel.

[0012] As an optional implementation, the drive device further includes a drive motor, the power output shaft of which is connected to the gear shaft of the gear pump.

[0013] As an optional implementation, it also includes a sealing ring fitted on the outer peripheral wall of the pressure plate body. When the pressure plate body is inserted into the glue bucket, the sealing ring abuts against the inner wall of the glue bucket to form a seal.

[0014] As an optional implementation, a lifting assembly is also included, which includes two drive cylinders disposed on both sides of the pressure plate body, a crossbar connected to the extension and retraction ends of the two drive cylinders, and two guide rods that are connected at one end to the crossbar and at the other end to the pressure plate body and are spaced apart. When the drive cylinder drives the crossbar to move up and down, the guide rod can drive the pressure plate body to move up and down.

[0015] In addition, this utility model also provides a hot melt glue machine, including a base plate, a glue bucket disposed on the base plate, and the aforementioned pressure plate mechanism disposed on the base plate, wherein the glue bucket stores glue.

[0016] In summary, the novel hot melt glue press plate mechanism and hot melt glue machine of this utility model integrate the heating element into the inner bottom of the press plate body, thus eliminating the need for assembly of the heating element, which is more convenient. In addition, since the heating element does not occupy the mounting slot space of the press plate body, the guide seat can be installed in the mounting slot, thereby reducing the overall height of the press plate mechanism, making the structure more compact and reducing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the pressure plate mechanism for melting adhesive according to this utility model; Figure 2 This is an exploded view of the pressure plate mechanism for melt adhesive application according to this utility model; Figure 3 This is a cross-sectional schematic diagram of the pressure plate body in the pressure plate mechanism for melt adhesive of this utility model; Figure 4 This is a cross-sectional schematic diagram of the flow guide seat in the pressure plate mechanism for melt adhesive of this utility model; Figure 5 This is a schematic diagram of the gear pump in the pressure plate mechanism for melt adhesive application of this utility model; Figure 6 for Figure 5 A structural diagram from another perspective.

[0018] The meanings of the reference numerals in the attached figures are as follows: 1. Pressure plate body; 11. Mounting slot; 12. First through slot; 13. Heating element; 14. Seventh through slot; 2. Guide seat; 21. Second through slot; 22. Third through slot; 23. Fourth through slot; 231. Main support slot; 232. Branch slot; 24. Fifth through slot; 25. Sixth through slot; 3. Drive device; 31. Gear pump; 311. Gear shaft; 312. Glue inlet hole; 313. Glue outlet hole; 32. Drive motor; 4. Glue outlet connector; 5. Return assembly; 51. Guide block; 52. Return valve; 6. Exhaust valve; 7. Exhaust adjustment rod; 8. Sealing ring; 9. Pressure plate cover; 10. Guide rod. Detailed Implementation

[0019] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0022] See Figure 1-6 This utility model provides a novel pressure plate mechanism for melting glue, including a disc-shaped pressure plate body 1, with a heating element 13 integrated in the inner bottom of the pressure plate body 1; preferably, the heating element 13 is a heating tube arranged in a spiral shape; the pressure plate body 1 has a mounting groove 11 with a top opening and a first glue inlet channel connected to the mounting groove 11 and located in the middle; in addition, it also includes a flow guide seat 2 and a driving device 3, the flow guide seat 2 is installed in the mounting groove 11; the flow guide seat 2 has a second glue inlet channel and a first glue outlet channel, the glue inlet end of the second glue inlet channel is connected to the glue outlet end of the first glue inlet channel; the driving device 3 includes a gear pump 31 installed on the flow guide seat 2, the bottom of the gear pump 31 has a glue inlet hole 312 and a glue outlet hole 313, the glue inlet hole 312 is connected to the glue outlet end of the second glue inlet channel, and the glue outlet hole 313 is connected to the glue inlet end of the first glue outlet channel.

[0023] When the pressure plate body 1 extends into the glue bucket and the bottom surface of the pressure plate body 1 comes into contact with the glue in the glue bucket, the heating element 13 melts the glue into glue. Then, under the action of the driving device 3, the glue flows out through the first glue inlet channel, the second glue inlet channel, the glue inlet hole 312, the glue outlet hole 313 and the first glue outlet channel in sequence.

[0024] The pressure plate mechanism of this utility model integrates the heating element 13 into the inner bottom of the pressure plate body 1, thus eliminating the need for assembly of the heating element 13, which is more convenient. In addition, since the heating element 13 is a spirally arranged heating tube, it does not occupy the space of the mounting groove 11 of the pressure plate body 1. Therefore, the flow guide seat 2 can be installed in the mounting groove 11, thereby reducing the overall height of the pressure plate mechanism, making the structure more compact and reducing costs.

[0025] Specifically, the pressure plate body 1 has a first through groove 12 arranged vertically and connected to the mounting groove 11, which forms a first glue inlet channel; the guide seat 2 has a second through groove 21 and a third through groove 22 arranged vertically, which are spaced apart; the second through groove 21 forms a second glue inlet channel, and the third through groove 22 forms a first glue outlet channel.

[0026] Furthermore, the guide seat 2 also has a fourth channel 23 that connects to the third channel 22 and is arranged horizontally, forming a second adhesive outlet channel. Specifically, it also includes two adhesive outlet connectors 4 arranged at intervals on the guide seat 2. The fourth channel 23 includes a main branch channel 231 and two branch channels 232 that connect to the main branch channel 231 and are arranged perpendicularly to and at intervals from the main branch channel 231. The main branch channel 231 is connected to the third channel 22, and the two branch channels 232 are respectively connected to the two adhesive outlet connectors 4.

[0027] Therefore, the glue flowing out from the first glue outlet channel can flow sequentially through the main branch channel 231 of the fourth channel 23 and the two branch channels 232 of the fourth channel 23, and finally be output through the two glue outlet joints 4.

[0028] See also Figure 1-2 as well as Figure 4The pressure plate mechanism also includes a return flow assembly 5, which includes a guide block 51 mounted on the guide seat 2 and a return flow valve 52 disposed on the guide block 51. The guide seat 2 has a fifth channel 24 that connects to the third channel 22 and is arranged horizontally, and a sixth channel 25 that connects to the second channel 21 and is arranged horizontally. The fifth channel 24 and the sixth channel 25 respectively form a first return flow channel and a second return flow channel. The guide block 51 has a connecting channel located between the first return flow channel and the second return flow channel and connected to both. The return flow valve 52 is used to open or close the connecting channel to control whether the first return flow channel and the second return flow channel are connected.

[0029] Therefore, by controlling the opening or closing of the return valve 52, the connection channel can be opened or closed, thereby allowing excess glue to flow back and avoiding glue waste.

[0030] In addition, it also includes an exhaust valve 6 installed on the guide block 51, which can discharge excess air in the glue bucket at the start of work, thereby facilitating the pressing of the pressure plate body 1.

[0031] See also Figure 1-2 The pressure plate mechanism also includes an exhaust regulating rod 7. The pressure plate body 1 has a vertically arranged seventh through groove 14, which forms an exhaust channel. The exhaust regulating rod 7 is inserted into the exhaust channel. Thus, after the glue is drained, the exhaust regulating rod 7 can be released to allow air to enter the glue bucket, thereby facilitating the reset of the pressure plate body 1.

[0032] Preferably, the drive device 3 further includes a drive motor 32, the power output shaft of which is connected to the gear shaft 311 of the gear pump 31, thereby driving the gear shaft 311 to rotate and thus driving the glue output.

[0033] More preferably, it also includes a sealing ring 8 fitted on the outer peripheral wall of the pressure plate body 1. When the pressure plate body 1 is inserted into the glue bucket, the sealing ring 8 can abut against the inner wall of the glue bucket to form a seal, thereby preventing the melted glue from coming into contact with air and causing failure, thus ensuring the use conditions of the glue.

[0034] In addition, the pressure plate mechanism also includes a lifting assembly, which includes two drive cylinders (not shown in the figure) respectively disposed on both sides of the pressure plate body 1, a crossbar (not shown in the figure) connected to the extension and retraction ends of the two drive cylinders, and two guide rods 10 connected at one end to the crossbar and at the other end to the pressure plate body 1 and spaced apart. Thus, when the drive cylinder drives the crossbar to move up and down, the guide rods 10 can drive the pressure plate body 1 to move up and down, thereby enabling the pressure plate body 1 to extend into or out of the glue bucket.

[0035] In addition, the pressure plate mechanism also includes a pressure plate cover 9, which covers the top of the pressure plate body 1 and shields the top of the pressure plate body 1, thereby ensuring the overall appearance of the pressure plate body 1 is simple and also serves as a dustproof function. It is understood that the pressure plate cover 9 has a clearance hole for the flow guide seat 2 to pass through.

[0036] In addition, this utility model also provides a hot melt adhesive machine, including a base plate, a glue tank disposed on the base plate, and the aforementioned pressure plate mechanism disposed on the base plate, wherein the glue tank stores adhesive. Both drive cylinders in the lifting assembly are disposed on the base plate.

[0037] In summary, the novel hot melt glue press plate mechanism and hot melt glue machine of this utility model integrate the heating element 13 into the inner bottom of the press plate body 1, thus eliminating the need for assembly of the heating element 13, which is more convenient. In addition, since the heating element 13 does not occupy the space of the mounting groove 11 of the press plate body 1, the flow guide seat 2 can be installed in the mounting groove 11, thereby reducing the overall height of the press plate mechanism, making the structure more compact and reducing costs.

[0038] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A novel press platen mechanism for use in hot melt adhesive, characterized by, include: The pressure plate body has a heating element integrated at its bottom; the pressure plate body has an installation groove and a first glue inlet channel communicating with the installation groove. A flow guide seat is installed in the mounting groove; the flow guide seat is provided with a second glue inlet channel and a first glue outlet channel, and the second glue inlet channel is connected to the first glue inlet channel. The driving device includes a gear pump mounted on the guide seat; the gear pump has an inlet hole and an outlet hole, the inlet hole is connected to the second inlet channel and the outlet hole is connected to the first outlet channel; When the pressure plate body extends into the glue bucket and the bottom surface of the pressure plate body comes into contact with the glue in the glue bucket, the heating element melts the glue into adhesive. Then, under the action of the driving device, the adhesive flows out sequentially through the first glue inlet channel, the second glue inlet channel, the glue inlet hole, the glue outlet hole, and the first glue outlet channel.

2. The platen mechanism of claim 1, wherein, The pressure plate body has a first through groove that connects to the mounting groove and is arranged vertically, and the first through groove forms the first glue inlet channel; the guide seat has a second through groove and a third through groove that are arranged vertically, and the second through groove and the third through groove are arranged at intervals; the second through groove forms the second glue inlet channel, and the third through groove forms the first glue outlet channel.

3. The platen mechanism of claim 2, wherein, The flow guide seat has a fourth channel that connects to the third channel and is arranged horizontally, and the fourth channel forms a second glue outlet channel.

4. The platen mechanism of claim 3, wherein, It also includes two glue outlet joints arranged at intervals on the flow guide seat. The fourth channel includes a main support channel and two branch channels arranged at intervals that connect the main support channel. The main support channel is connected to the third channel, and the two branch channels are respectively connected to the two glue outlet joints.

5. The platen mechanism of any one of claims 2-4, wherein, It also includes a reflux assembly, which comprises a flow guide block mounted on the flow guide seat and a reflux valve disposed on the flow guide block, wherein: The flow guide seat has a fifth channel that connects to the third channel and is arranged horizontally, and a sixth channel that connects to the second channel and is arranged horizontally. The fifth channel and the sixth channel respectively form a first return channel and a second return channel. The flow guide block has a connecting channel located between and connected to the first return channel and the second return channel. The return valve is used to open or close the connecting channel to control whether the first return channel and the second return channel are connected.

6. The platen mechanism of any one of claims 1-4, wherein, It also includes an exhaust regulating rod, and the pressure plate body has a vertically arranged seventh through groove, which forms an exhaust channel; the exhaust regulating rod is inserted into the exhaust channel.

7. The platen mechanism of any one of claims 1-4, wherein, The drive device also includes a drive motor, the power output shaft of which is connected to the gear shaft of the gear pump.

8. The platen mechanism of any one of claims 1-4, wherein, It also includes a sealing ring fitted on the outer peripheral wall of the pressure plate body. When the pressure plate body is inserted into the glue bucket, the sealing ring abuts against the inner wall of the glue bucket to form a seal.

9. The platen mechanism of any one of claims 1-4, wherein, It also includes a lifting assembly, which includes two drive cylinders respectively disposed on both sides of the pressure plate body, a crossbar connected to the extension and retraction ends of the two drive cylinders, and two guide rods that are connected at one end to the crossbar and at the other end to the pressure plate body and are spaced apart. When the drive cylinder drives the crossbar to move up and down, the guide rod can drive the pressure plate body to move up and down.

10. A hot melt glue machine characterized by, It includes a base plate, a glue bucket disposed on the base plate, and a pressure plate mechanism as described in any one of claims 1-9 disposed on the base plate, wherein the glue bucket stores glue.

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