A double-station continuous glue feeding device

Abstract

The utility model relates to hot melt glue machine technical field especially relates to a double station continuous glue supply equipment, including operation machine case, the symmetrical work machine case of operation machine case both sides is equipped with, and the independent operation of glue supply mechanism is equipped in two work machine cases, and the operation machine case is on control device and general control device, glue supply mechanism includes feed barrel, is located the upside glue material heating drainage structure of feed barrel bottom, is located the glue material heating discharge structure of upside glue material heating drainage structure lower extreme and with the gear pump and motor drive assembly of glue material heating discharge structure connection, feed barrel is equipped with automatic uncovering mechanism, the utility model discloses through upside glue material heating drainage structure and glue material heating discharge structure melt the glue material of feed barrel bottom, through gear pump and motor drive assembly push out after the melt of glue solution, need not to add low liquid level alarm device, need not to stop machine when the liquid level is lower and throw glue, thereby guarantee the continuity of production.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive machine technology, and in particular to a dual-station continuous adhesive supply device. Background Technology

[0002] Hot melt adhesive machines are mainly used for automated applications of hot melt adhesive spraying, scraping, rolling, coating, and injection. Gear pumps are rotary pumps that rely on the change and movement of the working volume formed between the pump cylinder and meshing gears to transport or pressurize liquids. They consist of two gears, a pump body, and front and rear covers forming two enclosed spaces. When the gears rotate, the volume of the space on the disengaged side increases, creating a vacuum that draws in liquid. Conversely, the volume of the space on the meshing side decreases, forcing the liquid into the pipeline. The suction chamber and discharge chamber are separated by the meshing line of the two gears.

[0003] Existing hot melt glue machines require adding more glue only when the glue is depleted, as it cannot melt immediately and must wait for it to melt. There is no spare glue storage space, which can easily lead to glue shortages. Therefore, a low liquid level alarm device needs to be installed so that the machine can be stopped and glue added when the liquid level is low, resulting in low production efficiency. Utility Model Content

[0004] Therefore, it is necessary to address the problem that existing hot melt glue machines cannot immediately melt glue when the glue is depleted, requiring a waiting period before adding more. This lack of a backup glue storage space easily leads to glue shortages, necessitating the installation of a low-level alarm device. Consequently, the machine must be stopped to refill when the glue level is low, resulting in low production efficiency. To address this, a dual-station continuous glue supply device is proposed. This device melts the glue in the upper bucket and stores it in the lower receiving chamber, allowing production to continue without stopping the machine to add another bucket of glue. This enables continuous glue supply, allowing for immediate melting and use, significantly improving production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dual-station continuous glue supply device, comprising: an operating box, with working boxes symmetrically arranged on both sides of the operating box, each working box having an independently operating glue supply mechanism, and the operating box having a control device for controlling the operation of the two glue supply mechanisms and a main control device. The glue supply mechanism includes a feeding hopper, an upper glue heating and guiding structure located at the bottom of the feeding hopper and sealed to the feeding hopper, a glue heating and discharging structure located at the lower end of the upper glue heating and guiding structure and sealed to the upper glue heating and guiding structure, and a gear pump and motor drive assembly connected to the glue heating and discharging structure to push the glue liquid out of the glue heating and discharging structure. The upper glue heating and guiding structure guides the hot melt from the lower side of the feeding hopper to the glue heating and discharging structure, where the glue heating and discharging structure heats the glue liquid again, and then the gear pump and motor drive assembly pushes the glue liquid out. The feeding hopper is equipped with an automatic lid opening mechanism.

[0006] Furthermore, the upper rubber material heating and diversion structure includes a heating base, a receiving cavity, and diversion slots arranged at equal intervals at the bottom of the receiving cavity. The diversion slots are arranged in a row, and a baffle is formed in the receiving cavity on the side of each diversion slot. The diversion slots are connected to the rubber material heating and discharging structure. The side wall of the heating base is provided with multiple first mounting holes passing through the heating base. Each first mounting hole is located on the side wall of each row of diversion slots and is not connected to the diversion slots. A first heating tube is installed in each first mounting hole to heat the rubber material in the diversion slot.

[0007] Furthermore, the heating base includes a cylindrical body and a connecting body integral with the cylindrical body. A receiving cavity is provided in the cylindrical body, and a drainage groove and a first mounting hole are provided in the connecting body. A first annular groove is provided at the top of the cylindrical body, and a first sealing ring is provided in the first annular groove. The connecting body has four extensions extending to the outside of the cylindrical body, and each extension is provided with a mounting hole.

[0008] Furthermore, the rubber compound heating and discharging structure includes a discharging base, which has a guiding cavity connected to a receiving cavity via a drainage channel. The guiding cavity contains spaced-apart guiding blocks that are not connected to the sidewalls of the guiding cavity, forming a material channel between adjacent guiding blocks. The bottom surface of the guiding cavity is sloped, and at the inclined end of the slope is a discharging hole connected to the gear pump inlet of the gear pump and motor drive assembly. The discharging base has a guiding channel connected to the gear pump output of the gear pump and motor drive assembly. Multiple second mounting holes penetrating the discharging base are provided on the upper side of the guiding channel. These second mounting holes are arranged along the inclined direction of the slope, and each second mounting hole contains a second heating tube for secondary heating of the rubber compound.

[0009] Furthermore, the inclined upper end of the slope is provided with a T-shaped flow channel that communicates with the guide channel, and discharge channels that communicate with the guide channel are provided on both sides of the guide channel, with discharge connectors connected to the discharge channels.

[0010] Furthermore, the guide channel extends through the discharge base, and a removable first plug is provided at the end of the guide channel.

[0011] Furthermore, the T-shaped flow channel and the discharge channel are connected to a cleaning channel that runs through the discharge base and has a removable second plug at the end.

[0012] Furthermore, a second annular groove is provided at the upper end of the discharge base along the edge of the guide cavity, and a second sealing ring is provided in the second annular groove.

[0013] Furthermore, the automatic opening mechanism includes a bracket pivotally connected to the top of the feeding hopper, a pressure cylinder mounted on the bracket, and a sealing cap mounted on the output end of the pressure cylinder.

[0014] Beneficial Effects: By setting up two independent glue supply mechanisms in the control box, and controlling each mechanism accordingly, and by incorporating an upper glue heating and diversion structure, a glue heating and discharging structure, and a gear pump and motor drive assembly at the bottom of the glue supply hopper, the glue at the bottom of the hopper is melted through these structures. The melted glue is then pumped out by the gear pump and motor drive assembly. This eliminates the need for a low-level alarm device, allowing for continuous glue supply without stopping production when the level is low. Simultaneously, the upper glue heating and diversion structure at the bottom of the hopper provides secondary heating to ensure uniform melting and improve glue quality. Furthermore, the automatic cap opening mechanism makes the glue supply process more convenient and efficient, further enhancing production efficiency. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the utility model name in one embodiment; Figure 2 This is a schematic diagram showing the positional relationship between the two glue supply mechanisms in this utility model; Figure 3 This is a schematic diagram of the adhesive supply mechanism in this utility model; Figure 4 This is a cross-sectional view of the glue supply mechanism in this utility model; Figure 5 This is a schematic diagram of the upper side rubber material heating and diversion structure in this utility model; Figure 6 This is a schematic diagram of the rubber material heating and discharging structure in this utility model; Figure 7 This is a cross-sectional view of the rubber material heating and discharging structure of this utility model from one angle; Figure 8 A cross-sectional view of the rubber material heating and discharging structure of this utility model from another angle. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1This embodiment provides a dual-station continuous glue supply device, which includes an operating housing 10. Symmetrically arranged on both sides of the operating housing 10 are working housings 11, each containing an independently operating glue supply mechanism 20. The operating housing 10 is equipped with a control device 30 for controlling the operation of the two glue supply mechanisms 20 and a central control device 40. An electrical control housing 12 is located in the middle of the operating housing 10, housing the electrical control components of the control device 30 and the central control device 40. The electrical control housing 12 features an ergonomically designed independent mechanical and electrical control section, resulting in a reasonable structure and convenient operation and maintenance. The increased heat dissipation space within the electrical control housing 12 reduces damage to electrical control components and power consumption. By using two control devices 30 to control the corresponding glue supply mechanisms 20, independent operation of the two stations is achieved without interference, improving work efficiency. A working status indicator light is also provided on the front face of the operating housing 10, which can intuitively display the working status of the glue supply device, facilitating real-time monitoring by the operator. In addition, the bottom of the work unit 11 is equipped with casters, which facilitates the movement and positioning of the equipment, increasing its flexibility of use. The entire dual-station continuous glue supply equipment has a compact design and stable structure, effectively improving the continuity and stability of glue supply, and is suitable for various production scenarios that require continuous glue supply.

[0018] Please see Figure 2 and Figure 3 The glue supply mechanism 20 includes a feeding tank 21. At the bottom of the feeding tank 21, there is an upper glue heating and guiding structure 22 and a glue heating and discharging structure 23 located at the lower end of the upper glue heating and guiding structure 22 and sealed to the upper glue heating and guiding structure 22. There is also a gear pump and motor drive assembly 24 connected to the glue heating and discharging structure 23 to push the glue liquid out of the glue heating and discharging structure 23. The feeding tank 21 is equipped with an automatic lid opening mechanism 25, which is located outside the working machine box 11. The glue at the bottom of the feeding tank 21 is melted by the upper glue heating and guiding structure 22 and the glue heating and discharging structure 23. Then, the gear pump and motor drive assembly 24 pushes out the melted glue liquid. There is no need to install a low liquid level alarm device. When the liquid level is low, there is no need to stop the machine to add glue, thus ensuring the continuity of production.

[0019] Please see Figure 5The upper rubber heating and guiding structure 22 is mainly used for the first heating of the rubber at the bottom of the feeding barrel 21, so that the rubber can melt and flow quickly into the rubber heating and discharging structure 23. In this embodiment, the main structure of the upper rubber heating and guiding structure 22 is as follows: the upper rubber heating and guiding structure 22 includes a heating base 220, which includes a cylindrical body 2201 and a connecting body 2202 integral with the cylindrical body 2201. A receiving cavity 2203 is opened in the cylindrical body 2201, and an inner step 2204 is provided on the inner circumferential edge of the upper end of the cylindrical body 2201. The diameter of the inner step 2204 is the same as the outer diameter of the feeding barrel 21, so that the side wall of the inner step 2204 is flush with the feeding barrel 21. The bottom outer wall of the barrel 21 is in close contact with the material, and a first annular groove 2205 is provided on the surface of the inner step 2204. A first sealing ring 2206 is provided in the first annular groove 2205. The bottom surface of the feeding barrel 21 is in close contact with the first sealing ring 2206. By the weight of the feeding barrel 21 itself, the first sealing ring 2206 is squeezed and deformed, thereby achieving a sealed connection between the cylindrical body 2201 and the feeding barrel 21. In addition, the connecting body 2202 has four extensions 22020 extending to the outside of the cylindrical body 2201. Each extension 22020 is provided with a mounting hole 22021. The mounting hole 22021 is used to fix the connecting body 2202 to the rubber heating and discharging structure 23 by screws.

[0020] Specifically, in order to preliminarily heat the rubber compound in the receiving cavity 2203 and allow it to flow into the rubber compound heating and discharging structure 23, the connecting body 2202 at the bottom of the receiving cavity 2203 is provided with equally spaced drainage slots 22022. The drainage slots 22022 are arranged in a row, and a baffle 22023 is formed in the receiving cavity 2203 on the side of each drainage slot 22022. The drainage slots 22022 are connected to the rubber compound heating and discharging structure 23. The side wall of the connecting body 2202 is provided with multiple... Each first mounting hole 22024 is located on the side wall of the drainage channel 22022 in each row and is not connected to the drainage channel 22022. Each first mounting hole 22024 is equipped with a first heating pipe to heat the rubber material in the drainage channel 22022. The first heating pipe heats the side wall and the baffle 22023, so that the rubber material falling into the receiving cavity 2203 is melted by the high temperature of the side wall. The melted rubber material flows into the rubber material heating and discharge structure 23 through the drainage channel 22022.

[0021] Please see Figure 4 , Figure 6 , Figure 7 and Figure 8The rubber heating and discharging structure 23 is mainly used for secondary heating of the rubber compound, making the rubber compound melt more evenly, so that it can be ejected by the gear pump and motor transmission assembly 24. In this embodiment, the main structure of the rubber heating and discharging structure 23 includes a discharging base 230, a guiding cavity 231 is provided in the discharging base 230, the guiding cavity 231 is connected to the receiving cavity 2203 through the diversion slot 22022, and a second annular groove 232 is provided at the upper end of the discharging base 230 along the edge of the guiding cavity 231. A second sealing ring 233 is provided in the second annular groove 232. The second sealing ring 233 contacts the bottom surface of the connecting body 2202. The second sealing ring 233 is deformed by the compression of the connecting body 2202, thereby achieving the sealing of the discharge base 230 and the connecting body 2202. A threaded hole corresponding to the mounting hole 22011 on the connecting body 2202 is provided on the discharge base 230. The discharge base 230 and the connecting body 2202 are fixed by screws passing through the mounting hole 22011 and connecting the threaded hole.

[0022] The guide cavity 231 is provided with guide blocks 234 spaced apart and not connected to the side wall of the guide cavity 231, and a material channel is formed between adjacent guide blocks 234. The bottom surface of the guide cavity 231 is set as an inclined surface, and a discharge hole 235 connected to the gear pump inlet of the gear pump and motor transmission assembly 24 is provided at the inclined end of the inclined surface. The discharge base 230 has a guide channel 236 connected to the gear pump output of the gear pump and motor transmission assembly 24. A T-shaped flow channel 237 connected to the guide channel 236 is provided at the inclined upper end of the inclined surface. A discharge port connected to the guide channel 236 is provided on both sides of the guide channel 236. The discharge channel 2310 is connected to the discharge connector 238. The discharge hole 235 is connected to the gear pump inlet of the gear pump and motor drive assembly 24, ensuring that the rubber material can be sucked into the gear pump in a timely and accurate manner. The connection between the guide channel 236 and the output end of the gear pump allows the rubber material pressurized by the gear pump to be smoothly discharged, providing a stable supply of rubber material for subsequent processing. The discharge channels 2310 and the connected discharge connectors 238 on both sides of the guide channel 236 provide the possibility for diversified output of rubber material, meeting the rubber material supply requirements under different processing needs.

[0023] Furthermore, the discharge base 230 on the upper side of the guide channel 236 has multiple second mounting holes 239 penetrating through it. These second mounting holes 239 are arranged along an inclined surface, and each second mounting hole 239 houses a second heating tube for secondary heating of the adhesive. The second heating tubes ensure uniform heating of the adhesive within the guide cavity 231, further improving the melting efficiency and quality of the adhesive. In addition, the design of the guide block 234 not only facilitates the orderly flow of the adhesive within the channel but also increases the contact area between the adhesive and the heating tubes, thereby enhancing the heating effect. The inclined design of the bottom surface of the guide cavity 231 allows the adhesive to gradually converge at the discharge hole 235 during flow, facilitating smooth intake by the gear pump and motor drive assembly 24.

[0024] The guide channel 236, T-shaped flow channel 237, and discharge channel 2310 may become clogged after prolonged use. To facilitate unblocking these channels, the guide channel 236 extends through the discharge base 230 and has a removable first plug at its end. The T-shaped flow channel 237 and discharge channel 2310 are connected to a cleaning channel that extends through the discharge base 230 and has a removable second plug at its end. When cleaning is required, operators can remove the first and second plugs and use the cleaning channel to clear the blockages. This design not only simplifies the cleaning process but also significantly improves equipment maintenance efficiency. Furthermore, the detachable design of the first and second plugs ensures their stability during use, effectively preventing material leakage due to loosening. It should be noted that the ends of the guide channel 236 and the cleaning channel are provided with internal threaded holes, and the surfaces of the first and second plugs are provided with external threads that match the internal threaded holes, thus facilitating the disassembly and installation of the first and second plugs.

[0025] Please see Figure 3Since glue needs to be added frequently into the feeding hopper 21, a sealing cap 252 is used to seal the feeding hopper 21 to ensure that the temperature inside the feeding hopper 21 does not escape. The sealing cap 252 is opened when discharging the material. For this purpose, an automatic cap opening mechanism 25 is set up. The automatic cap opening mechanism 25 realizes automatic cap opening, eliminating the need for manual operation and reducing labor intensity. The automatic cap opening mechanism 25 includes a bracket 250 with one end pivotally connected to the top of the feeding hopper 21 and the other end fixed to the top of the feeding hopper 21 by a locking member. A pressure cylinder 251 is set on the bracket 250, and a sealing cap 252 is set at the output end of the pressure cylinder 251. The sealing cap 252 matches the opening of the feeding hopper 21. When the pressure cylinder 251 works, its output end pushes the sealing cap 252 to move along the bracket 250, thereby realizing the automatic opening and closing of the sealing cap 252. When adding adhesive, the pressure cylinder 251 pulls the sealing cap 252 open, allowing the operator to easily pour the adhesive into the supply tank 21. When no adhesive is being added, the sealing cap 252 tightly seals the opening of the supply tank 21, effectively preventing heat loss inside the tank and ensuring the stability and flowability of the adhesive. This design not only improves work efficiency but also significantly reduces the labor intensity of operators, making the entire adhesive supply process more automated and convenient.

[0026] In summary, the dual-station continuous glue supply equipment provided by this utility model achieves a highly efficient, stable, and continuous glue supply process through its carefully designed structure and components. In particular, the upper glue heating and diversion structure 22 and the glue heating and discharging structure 23 in the glue supply mechanism 20 ensure uniform melting of the glue through two heating processes, improving the quality of the glue. Simultaneously, the application of the automatic cap opening mechanism 25 further simplifies the operation process and reduces the labor intensity of operators. The entire equipment is compact in design and stable in structure, suitable not only for various production scenarios requiring continuous glue supply but also demonstrating excellent adaptability and flexibility.

[0027] 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 dual-station continuous glue supply device, characterized in that, include: The control box has two symmetrically arranged working boxes on both sides. Each working box has an independently operating glue supply mechanism. The control box is equipped with a control device for controlling the operation of the two glue supply mechanisms and a central control device. The glue supply mechanism includes a feeding hopper, an upper glue heating and guiding structure located at the bottom of the feeding hopper and sealed to the feeding hopper, a glue heating and discharging structure located at the lower end of the upper glue heating and guiding structure and sealed to the upper glue heating and guiding structure, and a gear pump and motor drive assembly connected to the glue heating and discharging structure to push the glue liquid out of the glue heating and discharging structure. The upper glue heating and guiding structure guides the hot melt from the lower side of the feeding hopper to the glue heating and discharging structure, where the glue heating and discharging structure heats the glue liquid again, and then the gear pump and motor drive assembly pushes the glue liquid out. The feeding hopper is equipped with an automatic lid opening mechanism.

2. The dual-station continuous glue supply equipment according to claim 1, characterized in that, The upper rubber heating and diversion structure includes a heating base with a receiving cavity. The bottom of the receiving cavity has equally spaced diversion slots arranged in a row. Each diversion slot has a baffle formed in the receiving cavity on its side. The diversion slots are connected to the rubber heating and discharging structure. The side wall of the heating base has multiple first mounting holes that pass through the heating base. Each first mounting hole is located on the side wall of each row of diversion slots and is not connected to the diversion slots. Each first mounting hole is equipped with a first heating tube to heat the rubber in the diversion slot.

3. The dual-station continuous glue supply equipment according to claim 2, characterized in that, The heating base includes a cylindrical body and a connecting body integral with the cylindrical body. A receiving cavity is provided in the cylindrical body, and a drainage groove and a first mounting hole are provided in the connecting body. A first annular groove is provided at the top of the cylindrical body, and a first sealing ring is provided in the first annular groove. The connecting body has four extensions extending to the outside of the cylindrical body, and each extension is provided with a mounting hole.

4. The dual-station continuous glue supply equipment according to claim 2, characterized in that, The rubber compound heating and discharging structure includes a discharging base with a guiding cavity. The guiding cavity is connected to a receiving cavity through a flow channel. The guiding cavity has guide blocks spaced apart from the side walls of the guiding cavity, forming a material channel between adjacent guide blocks. The bottom surface of the guiding cavity is set as an inclined surface. At the inclined end of the inclined surface, there is a discharging hole that communicates with the inlet end of the gear pump of the gear pump and motor drive assembly. The discharging base has a guiding channel that communicates with the output end of the gear pump of the gear pump and motor drive assembly. On the upper side of the guiding channel, the discharging base has multiple second mounting holes that penetrate the discharging base. The multiple second mounting holes are set along the inclined direction of the inclined surface. Each second mounting hole is equipped with a second heating tube to perform secondary heating of the rubber compound.

5. The dual-station continuous glue supply equipment according to claim 4, characterized in that, The inclined upper end of the slope is provided with a T-shaped flow channel that communicates with the guide channel, and discharge channels that communicate with the guide channel are provided on both sides of the guide channel. The discharge channels are connected to discharge connectors.

6. The dual-station continuous glue supply equipment according to claim 5, characterized in that, The guide channel runs through the discharge base, and a detachable first plug is provided at the end of the guide channel.

7. The dual-station continuous glue supply equipment according to claim 5, characterized in that, The T-shaped flow channel and discharge channel are connected to a cleaning channel that runs through the discharge base and has a removable second plug at the end.

8. The dual-station continuous glue supply equipment according to claim 4, characterized in that, A second annular groove is provided at the upper end of the discharge base along the edge of the guide cavity, and a second sealing ring is provided in the second annular groove.

9. The dual-station continuous glue supply equipment according to claim 1, characterized in that, The automatic lid opening mechanism includes a bracket pivotally connected to the top of the feeding hopper, a pressure cylinder mounted on the bracket, and a sealing cap mounted on the output end of the pressure cylinder.

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