A concealed glue feeding mechanism

Abstract

The utility model discloses a hidden glue supply mechanism, including the sol of the upper and lower both ends have the notch, the upper end notch cover is equipped with automatic sealing assembly, and the lower end notch is equipped with heating base, heating base is provided with sol cavity, and the bottom surface of sol cavity forms and flows glue slope, and the bottom of flowing glue slope is provided with flowing glue hole, and flowing glue hole is connected with gear pump, and gear pump is connected with motor and speed reducer drive component, heating base is provided with the heating hole of along flowing glue slope trend setting, and heating tube is installed in heating hole, the utility model discloses the heating base of setting in the sol bucket bottom, and the heating hole of setting along flowing glue slope trend in the heating base is set through entire heating base, and heating tube is installed in heating hole, and the sol bucket is heated to certain temperature, and is directly inhaled after through the pump body inside channel direct discharge by gear pump, and this mode glue supply temperature value, pressure value, more stable, and the residual of containing cavity is none, and the failure rate is low, namely melts and uses, greatly improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hot melt glue machine technology, and in particular to a concealed glue supply mechanism. Background Technology

[0002] Hot melt adhesive machines are mainly used for automated applications of hot melt adhesive spraying, scraping, rolling, coating, and dispensing.

[0003] The working principle of continuous hot melt glue machines on the market is generally as follows: after heating the solid glue in the melting tank, the melted glue is discharged through the internal channel of the guide block by rotating the gear pump.

[0004] The disadvantages of this method are that the internal flow channels of the guide block are complex, prone to clogging, have a high failure rate, and low production efficiency. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings of existing glue supply mechanisms and to provide a concealed glue supply mechanism.

[0006] The technical solution adopted by this utility model is as follows: a concealed glue supply mechanism, comprising: a glue tank with openings at both the upper and lower ends, the upper opening covered with an automatic sealing component, and the lower opening with a heating base; the heating base has a glue chamber communicating with the glue tank, the bottom surface of the glue chamber has a glue flow slope, the bottom end of the glue flow slope has a glue flow hole, the glue flow hole is connected to a gear pump, the gear pump is connected to a motor and a reducer drive component that drives the gear pump to draw glue from the glue chamber; the glue chamber has equally spaced flow dividers, and a flow channel is formed between adjacent flow dividers; the heating base has a heating hole that runs through the entire heating base and is set along the direction of the glue flow slope, and a heating tube is installed in the heating hole.

[0007] In one embodiment, each diverter block does not contact the end face on one side of the dispensing hole, forming a confluence area, and the sol in the confluence area flows out through the dispensing hole; and the upper end face of the diverter block is at the same horizontal plane as the upper end face of the heating base.

[0008] In one embodiment, the sol chamber is circular, and an annular groove is formed on the upper surface of the heating base along the edge of the sol chamber. A large sealing ring is embedded in the annular groove, and the end face of the large sealing ring is in contact with the bottom surface of the sol tank.

[0009] In one embodiment, the edges of the sol-gel tanks at both ends are provided with radially arranged protrusions, the automatic sealing assembly is fixed to the protrusion at the upper end of the sol-gel tank, and the heating base is fixedly connected to the protrusion at the lower end of the sol-gel tank by screws.

[0010] In one embodiment, the automatic sealing assembly includes a locking member and a rotating member symmetrically fixed on the convex edge. The rotating member has a connecting plate on its rotating shaft, and one end of the connecting plate has a locking groove connected to the locking member. A driving cylinder is provided in the middle section of the connecting plate. The output end of the driving cylinder has a sealing cover for covering the upper opening. The sealing cover has a sealing block with the same diameter as the inner diameter of the sol tank. The sealing block has a pressure relief block with a pressure relief hole. The sealing cover has a sealing hole communicating with the pressure relief hole. A blocking rod is plugged into the sealing hole and passes through the connecting plate.

[0011] In one embodiment, the gear pump includes a front plate, a middle plate, a rear plate, a gear set, and a glue outlet. The middle plate has a molten glue conveying chamber, and the gear set is disposed in the molten glue conveying chamber. The gear set is rotatably connected to the front plate and the rear plate through a rotating shaft. One of the rotating shafts passes through the rear plate and is connected to a motor and a reducer drive assembly through a coupling. The front plate has a glue inlet communicating with the glue flow hole and the molten glue conveying chamber. A drainage groove communicating with the molten glue conveying chamber is provided on one end face of the front plate that contacts the middle plate. The glue outlet passes through the rear plate and the middle plate in sequence and communicates with the drainage groove.

[0012] In one embodiment, the rear plate is provided with a plug for sealing the drainage channel, the plug is provided with a fixing member connected to the rear plate by threads, and the plug is provided with a cross-shaped flow hole.

[0013] In one embodiment, a small sealing ring is provided between the glue inlet and the glue flow hole, and the small sealing ring is embedded in the side wall of the heating base.

[0014] In one embodiment, there are two or more dispensing ports, and the front and rear plates are provided with corresponding guide grooves.

[0015] The aforementioned concealed glue supply mechanism, by setting a heating base at the bottom of the melt tank, and having heating holes running through the entire heating base and along the inclined surface of the glue flow, heats the glue in the melt tank to a certain temperature. The heated glue is then directly drawn in by a gear pump and discharged directly through an internal channel of the pump body. This method provides more stable glue supply temperature and pressure values, leaves no residue in the receiving cavity, has a low failure rate, and allows for immediate use, greatly improving production efficiency. The design of this concealed glue supply mechanism also considers the uniform distribution and efficient heating of the melt. Through equally spaced flow dividers within the melt chamber, the melt can be evenly distributed during heating, thereby improving heating efficiency and the uniformity of the melt. The flow channels formed between adjacent flow dividers ensure the stability and consistency of the melt during flow.

[0016] This concealed glue supply mechanism also features an automatic sealing function. The output end of the drive cylinder pushes the sealing cap to cover the upper opening, achieving automatic sealing of the glue tank. The sealing block and pressure relief block design on the sealing cap ensures the airtightness of the glue tank while allowing for pressure relief via the pressure relief hole when needed, improving the safety and flexibility of the glue supply mechanism.

[0017] In summary, the concealed glue supply mechanism provided by this utility model, through a series of ingenious designs and improvements, not only improves the heating efficiency and uniformity of the sol, but also enhances the stability and reliability of the glue supply mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model from one perspective;

[0019] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the heating base in this utility model;

[0022] Figure 5 This is a schematic diagram of the gear pump in this utility model;

[0023] Figure 6 This is an exploded view of the gear pump in this utility model.

[0024] Figure 7 for Figure 6 A structural diagram from another perspective. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] Please see Figure 1 This embodiment provides a concealed glue supply mechanism, which includes a glue tank 10. The glue tank 10 has openings at the upper and lower ends, and radially arranged protrusions 101 are formed along the edges of the two openings. The upper opening is covered with an automatic sealing component 20, and the lower opening is provided with a heating base 30. The heating base 30 is fixedly connected to the protrusions 101 by screws.

[0027] Please see Figure 2 and Figure 3The automatic sealing assembly 20 includes a locking member 201 and a rotating member 202 symmetrically fixed to the protruding edge 101. A connecting plate 203 is provided on the rotating shaft 2022 of the rotating member 202. One end of the connecting plate 203 has a locking groove 204 connected to the locking member 201. A driving cylinder 205 is provided in the middle section of the connecting plate 203. The output end of the driving cylinder 205 has a sealing cover 206 for covering the upper opening. The sealing cover 206 has a sealing block 207 with the same diameter as the inner wall of the solvent tank 10. The sealing block 207 has a pressure relief block with a pressure relief hole. The sealing cover 206 has a sealing hole communicating with the pressure relief hole. A blocking rod 208 is plugged into the sealing hole, and the blocking rod 208 passes through the connecting plate 203. When the solvent tank 10 needs to be sealed, the driving cylinder 205 pushes the sealing cover 206 to cover the upper opening, and the sealing block 207 comes into close contact with the inner wall of the solvent tank 10, achieving a sealing effect. When it is necessary to open the sealing cover 206, the internal pressure of the sol tank 10 needs to be released. The blocking rod 208 is pulled out from the sealing hole, the pressure relief hole is opened, and the gas inside the sol tank 10 can be discharged through the pressure relief hole to achieve the purpose of pressure relief, so as to drive the cylinder 205 to drive the sealing cover 206 to open.

[0028] Please see Figure 1 and Figure 2 The locking component 201 includes a large-diameter portion 2010 and small-diameter portions 2011 symmetrically arranged at both ends of the large-diameter portion 2010. The outer sides of the two small-diameter portions 2011 are threaded, and the protruding edge 101 has threaded holes that match the threads of the small-diameter portions 2011. After fixing the locking component 201 to the protruding edge 101, the connecting plate 203 is rotated, causing the small-diameter portion 2011 at the other end to insert into the locking groove 204. The connecting plate 203 is then fixed in place by a locking nut. Furthermore, the rotating component 202 includes a bushing 2021 and multiple bearings mounted on a rotating shaft 2022. The rotating shaft 2022 and bearings are fitted inside the bushing 2021. The bushing 2021 is fixed to the protruding edge 101 by screws, and the upper end of the rotating shaft 2022 is threaded. After the upper end of the rotating shaft 2022 passes through the connecting plate 203, the connecting plate 203 is fixed to the rotating shaft 2022 by a locking nut. Furthermore, the protruding edge 101 is symmetrically provided with two fixing plates 102, and the locking member 201 and the bushing 2021 are fixed on the fixing plate 102.

[0029] Please see Figure 4 and Figure 5The heating base 30 has a sol chamber 301 communicating with the sol tank 10. A flow slope is formed on the bottom surface of the sol chamber 301, and a flow hole 302 is formed at the bottom end of the flow slope. The flow hole 302 is connected to a gear pump 303, which is connected to a motor and reducer drive assembly 304 that drives the gear pump 303 to draw sol from the sol chamber 301. Diverting blocks 305 are evenly spaced within the sol chamber 301, forming a diversion channel between adjacent diverting blocks 305, and each diverting block 305 is connected to… The end faces of the dispensing orifice 302 do not contact each other, forming a confluence area 306. The sol in the confluence area 306 flows out through the dispensing orifice 302. The upper end face of the diverter block 305 is on the same horizontal plane as the upper end face of the heating base 30. The heating base 30 has heating holes 307 that penetrate the entire heating base 30 and are arranged along the dispensing slope. Heating tubes are installed inside the heating holes 307 and connected to an external power source via wires to heat the sol in the sol chamber 301, maintaining its fluidity. The sol in the sol tank 10 is heated to a certain temperature and then directly drawn in by the gear pump 303 and discharged directly through the pump's internal channel. This method provides more stable sol temperature and pressure values, leaves no residue in the receiving cavity, has a low failure rate, and allows for immediate use, greatly improving production efficiency. The diverter block 305 and the diverter channel allow for more uniform distribution of the sol in the sol chamber 301, further improving the heating efficiency and fluidity of the sol. The entire heating base 30 has a reasonable structural design, which can effectively improve the heating efficiency and conveying efficiency of the sol, and meet the needs of the production process.

[0030] In order to effectively seal the heating base 30 and the solvent tank 10 and avoid the problem of glue leakage, the solvent chamber 301 is circular, and an annular groove 308 is formed on the upper surface of the heating base 30 along the edge of the solvent chamber 301. A large sealing ring is embedded in the annular groove 308, and the end face of the large sealing ring contacts the bottom surface of the solvent tank 10. This arrangement can effectively improve the sealing performance between the solvent tank 10 and the heating base 30 and prevent the solvent from leaking.

[0031] In an alternative embodiment, please refer to Figure 6 and Figure 7The gear pump 303 includes a front plate 3030, a middle plate 3031, a rear plate 3032, a gear set 3033, and a glue outlet 3034. The middle plate 3031 has a melt delivery chamber, and the gear set 3033 is located in the melt delivery chamber. The gear set 3033 is rotatably connected to the front plate 3030 and the rear plate 3032 via a rotating shaft. One of the rotating shafts passes through the rear plate 3032 and is connected to the motor and reducer drive assembly 304 via a coupling. The front plate 3030 has a glue inlet 3035 that communicates with the glue flow hole 302 and the melt delivery chamber, and is connected to the middle plate 3034. A guide channel 3036, communicating with the sol delivery chamber, is provided on one end face of the front plate 3030, which is in contact with the 3031. The outlet port 3034 passes through the rear plate 3032 and the middle plate 3031 in sequence and communicates with the guide channel 3036. When the gear pump 303 is working, the motor and reducer drive assembly 304 drives the gear set 3033 to rotate. The sol enters the sol delivery chamber through the inlet 3035. Driven by the gear set 3033, the sol flows along the guide channel 3036 towards the outlet port 3034 and is finally discharged from the outlet port 3034. The design of this gear pump 303 makes the sol delivery process more stable, and the flow rate and pressure of the sol can be better controlled. In addition, the guide channel 3036 makes the sol delivery process smoother, avoiding the problems of blockage and residue during the delivery process. The overall structure of the gear pump 303 is reasonably designed, which can effectively improve the efficiency and stability of sol delivery and meet the needs of the production process.

[0032] In an optional embodiment, two or more dispensing ports 3034 are provided. The front plate 3030 and rear plate 3032 are provided with corresponding guide channels 3037. The rear plate 3032 is provided with a plug 3038 for blocking the guide channels 3036. The plug 3038 has a fixing member connected to the rear plate 3032 via threads and a cross-shaped flow hole. When two or more dispensing ports 3034 are provided, different numbers of dispensing ports 3034 can be selected for melt output according to production needs, improving the flexibility and applicability of the glue supply mechanism. The arrangement of the guide channels 3037 matches the number of dispensing ports 3034, ensuring that the melt can flow smoothly from the melt delivery chamber to each dispensing port 3034. The plug 3038 provided on the rear plate 3032 can be easily installed and removed via the fixing member to block unused guide channels 3036. The cross-shaped flow holes on the plug 3038 allow molten adhesive to pass through when needed, increasing the flexibility of the adhesive supply mechanism. By adjusting the position and number of plugs 3038, the flow direction and output of the molten adhesive can be flexibly controlled to meet the needs of different production scenarios. This design makes the concealed adhesive supply mechanism more practical and efficient.

[0033] In addition, a small sealing ring is provided between the glue inlet 3035 and the glue flow hole 302. The small sealing ring is embedded in the side wall of the heating base 30. The design of the small sealing ring effectively prevents the leakage of the molten glue between the glue inlet 3035 and the glue flow hole 302, ensuring the stable delivery of the molten glue.

[0034] In summary, by setting a heating base 30 at the bottom of the sol tank 10, and providing heating holes 307 that penetrate the entire heating base 30 and run along the inclined surface of the glue flow, with heating tubes installed inside the heating holes 307, the sol tank 10 is heated to a certain temperature. The sol is then directly drawn in by the gear pump 303 and discharged directly through the pump's internal channel. This method provides more stable glue supply temperature and pressure values, leaves no residue in the receiving cavity, has a low failure rate, and allows for immediate use after melting, significantly improving production efficiency. The design of this concealed glue supply mechanism also considers the uniform distribution and efficient heating of the sol. Through the equally spaced flow dividers 305 within the sol chamber 301, the sol can be uniformly distributed during heating, thereby improving heating efficiency and the uniformity of the sol. The flow channels formed between adjacent flow dividers 305 ensure the stability and consistency of the sol during flow.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A concealed glue supply mechanism, characterized in that, include: The solvent tank has openings at both the top and bottom. The top opening is covered with an automatic sealing assembly, and the bottom opening is equipped with a heating base. The heating base has a solvent chamber that communicates with the solvent tank. The bottom surface of the solvent chamber forms a flow slope, and the bottom end of the flow slope has a flow hole. The flow hole is connected to a gear pump, and the gear pump is connected to a motor and reducer drive assembly that drives the gear pump to draw solvent from the solvent chamber. The solvent chamber has equally spaced flow dividers, and a flow channel is formed between adjacent flow dividers. The heating base has heating holes that run through the entire heating base and are set along the flow slope. Heating tubes are installed in the heating holes.

2. The concealed glue supply mechanism according to claim 1, characterized in that, Each flow divider block does not contact the end face of the flow hole on one side, forming a flow convergence area. The sol in the flow convergence area flows out through the flow hole; and the upper end face of the flow divider block is at the same level as the upper end face of the heating base.

3. The concealed glue supply mechanism according to claim 1, characterized in that, The sol chamber is circular, and an annular groove is formed on the upper surface of the heating base along the edge of the sol chamber. A large sealing ring is embedded in the annular groove, and the end face of the large sealing ring is in contact with the bottom surface of the sol tank.

4. The concealed glue supply mechanism according to claim 1, characterized in that, The edges of the sol tanks at both ends are provided with radially arranged protrusions. The automatic sealing assembly is fixed to the protrusion at the upper end of the sprue, and the heating base is fixedly connected to the protrusion at the lower end of the sprue by screws.

5. The concealed glue supply mechanism according to claim 4, characterized in that, The automatic sealing assembly includes a locking component and a rotating component symmetrically fixed on the convex edge. The rotating component has a connecting plate on its shaft, and one end of the connecting plate has a locking groove that connects to the locking component. A driving cylinder is provided in the middle section of the connecting plate. The output end of the driving cylinder has a sealing cover for covering the upper opening. The sealing cover has a sealing block with the same diameter as the inner diameter of the sol tank. The sealing block has a pressure relief block with a pressure relief hole. The sealing cover has a sealing hole that communicates with the pressure relief hole. A blocking rod is plugged into the sealing hole and passes through the connecting plate.

6. The concealed glue supply mechanism according to claim 1, characterized in that, The gear pump includes a front plate, a middle plate, a rear plate, a gear set, and a glue outlet. The middle plate has a molten glue conveying chamber, and the gear set is located in the molten glue conveying chamber. The gear set is rotatably connected to the front plate and the rear plate through a rotating shaft. One of the rotating shafts passes through the rear plate and is connected to the motor and reducer drive assembly through a coupling. The front plate has a glue inlet that communicates with the glue flow hole and the molten glue conveying chamber. One end face of the front plate that contacts the middle plate has a drainage groove that communicates with the molten glue conveying chamber. The glue outlet passes through the rear plate and the middle plate in sequence and communicates with the drainage groove.

7. The concealed glue supply mechanism according to claim 6, characterized in that, The rear plate is provided with a plug for sealing the drainage channel. The plug is provided with a fixing part that is connected to the rear plate by threads. The plug is provided with a cross-shaped flow hole.

8. The concealed glue supply mechanism according to claim 6, characterized in that, A small sealing ring is provided between the glue inlet and the glue outlet, and the small sealing ring is embedded in the side wall of the heating base.

9. The concealed glue supply mechanism according to claim 6, characterized in that, There are two or more glue outlets, and the front and rear plates are equipped with corresponding flow channels.

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