Multi-color glue particle alternate feeding device for furniture edge banding machine

Abstract

The application discloses a multi-color glue particle alternate supply device for a furniture edge banding machine, which comprises a mounting frame, a glue particle storage box, a discharge assembly and an inlet assembly. The glue particle storage box comprises at least two cavities, each of which is provided with a discharge port and an inlet port. The discharge assembly comprises a discharge main pipeline, a discharge switch valve, a plurality of discharge branch pipelines and a discharge power conveyor. The discharge main pipeline is connected with a glue melting device and the discharge switch valve. One discharge branch pipeline is connected with each discharge port and the discharge switch valve. Any cavity can be communicated with the glue melting device by switching the discharge switch valve. The inlet assembly comprises an inlet main pipeline, an inlet switch valve, a plurality of inlet branch pipelines and an inlet power conveyor. The inlet main pipeline is connected with the glue melting device and the inlet switch valve. One inlet branch pipeline is connected with each inlet port and the inlet switch valve. Any cavity can be communicated with the glue melting device by switching the inlet switch valve. The device can realize the supply of different color glue particles and automatically recycle the unused glue particles in the glue melting device.

Description

Technical Field

[0001] This invention belongs to the technical field of furniture edge banding material supply devices, specifically relating to a multi-color adhesive granule alternating supply device for furniture edge banding machines. Background Technology

[0002] Current furniture edge banding processes require a hot melt adhesive device. During operation, adhesive granules are loaded into the cavity, and after heating, they melt into a viscous hot melt adhesive for the edge banding equipment. However, the capacity of the hot melt adhesive device is limited, and it cannot simultaneously supply two colors of hot melt adhesive to the edge banding equipment. Currently, the supply of EVA (vinyl acetate copolymer) hot melt adhesive granules to the hot melt adhesive device is mostly done manually or by an automatic adhesive supply device for a single color. However, when switching between processing different colored boards or applying different colored edge banding tapes, it is often necessary to use up all the unmelted hot melt adhesive granules in the hot melt adhesive device, or to manually remove the unused EVA hot melt adhesive granules before replacing them with the desired color. The edge banding machine must be stopped during the manual removal and addition of hot melt adhesive granules, significantly impacting the continuous working efficiency of the edge banding equipment. Furthermore, manual removal of hot melt adhesive granules is not only inefficient, but also poses a safety hazard if improperly operated while the hot melt adhesive device is in a heated state. Summary of the Invention

[0003] The purpose of this invention is to provide a supply device that can switch between different colored glue pellets and automatically recover unused glue pellets in the melting glue device.

[0004] To address the above problems, the present invention provides a multi-color adhesive granule alternating supply device for a furniture edge banding machine, comprising:

[0005] Mounting framework;

[0006] The granule storage box is connected to the mounting frame. The granule storage box includes at least two cavities for storing granules. Each cavity has a discharge port at the bottom and a feed port at the top.

[0007] The discharge assembly includes a main discharge pipe, a discharge switching valve, several branch discharge pipes, and a discharge power conveyor that provides power to transport the glue particles to the melting device. One end of the main discharge pipe is connected to the melting device, and the other end of the main discharge pipe is connected to the discharge switching valve. The number of branch discharge pipes is the same as the number of cavities. The discharge port of each cavity is connected to one end of a branch discharge pipe, and the other end of the branch discharge pipe is connected to the discharge switching valve. By switching the valve position of the discharge switching valve, any cavity can be connected to the melting device through a pipe.

[0008] The feeding assembly includes a main feeding pipe, a feeding switching valve, several feeding branch pipes, and a feeding power conveyor that provides power to the cavity for recycling the adhesive particles. One end of the main feeding pipe is connected to the melting device, and the other end of the main feeding pipe is connected to the feeding switching valve. The number of feeding branch pipes is the same as the number of cavities. The feeding port of each cavity is connected to one end of a feeding branch pipe, and the other end of the feeding branch pipe is connected to the feeding switching valve. By switching the valve position of the feeding switching valve, any cavity can be connected to the melting device.

[0009] The controller is electrically connected to the discharge switching valve, the discharge power conveyor, the inlet switching valve, and the inlet power conveyor.

[0010] This invention discloses a multi-color adhesive granule alternating supply device for a furniture edge banding machine. By setting up multiple chambers and multiple discharge sub-pipes, each discharge sub-pipe is individually controlled by a discharge power conveyor. In conjunction with a discharge switching valve, different chambers can be switched to connect to the melting device as needed, thereby providing the melting device with hot melt adhesive granules of different colors. This reduces the need for manual replacement of hot melt adhesive granules and improves work efficiency. Simultaneously, by setting up an infeed component, remaining hot melt adhesive granules in the melting device can be transported back to the corresponding chamber without manual removal, thus eliminating safety hazards and improving work efficiency.

[0011] In some implementations, the number of discharge power conveyors is the same as the number of cavities, and the discharge power conveyors are located between the discharge port and the discharge branch pipe.

[0012] Therefore, by configuring a separate discharge power conveyor for each discharge sub-pipe, the discharge from each cavity can be independently controlled, thereby achieving on-demand supply of different hot melt adhesive particles.

[0013] In some embodiments, a high-position sensor and a low-position sensor are also included, with the high-position sensor located at the top of the melting device and the low-position sensor located at the bottom of the melting device; the controller is electrically connected to the high-position sensor and the low-position sensor.

[0014] Therefore, by using a high-level sensor, the discharge power conveyor can be automatically controlled to stop supplying hot melt adhesive granules to the melting device when the device is full; conversely, by using a low-level sensor, the discharge power conveyor can be automatically activated to supply hot melt adhesive granules when the device is low on granules, thus achieving automatic feeding and reducing the frequency of manual addition. Alternatively, when the melting device needs to switch granules, the low-level sensor can determine if there are any unused granules. If the sensor detects excess material, it can activate the infeed power conveyor to return the remaining hot melt adhesive granules to the corresponding chamber, eliminating the need for manual removal and thus reducing safety hazards and improving work efficiency.

[0015] In some embodiments, a conveying switch and a recovery switch are also included, which are mounted on the mounting frame and electrically connected to the controller. The conveying switch can send a switching signal to control the start and stop states of the discharge switching valve and the discharge power conveyor, and the recovery switch can send a switching signal to control the start and stop states of the feed switching valve and the feed power conveyor.

[0016] Therefore, by controlling the conveying switch, on-site personnel can independently control a certain cavity to convey hot melt adhesive particles to the melting device; by controlling the recycling switch, the remaining hot melt adhesive particles in the melting device can be recycled to the cavity used to store hot melt adhesive particles of that color.

[0017] In some implementations, the low-position sensor and the high-position sensor are connected to a motion-activated light.

[0018] Therefore, when the melting device is in operation, if the low-level sensor detects insufficient glue particles, it sends a signal to automatically control the discharge power conveyor to start working, replenishing the melting device with glue particles. When the high-level sensor's indicator light illuminates, indicating that the melting device is full of glue particles, it sends a signal to control the discharge power conveyor to stop working, achieving automatic feeding. When the melting device needs to switch glue particles, the low-level sensor determines whether there are any remaining glue particles in the melting device. If the low-level sensor light illuminates, it indicates that there is remaining material and sends a signal to the controller. At this time, the feed power conveyor can be started to collect the remaining hot melt glue particles in the melting device into the corresponding cavity until the low-level sensor light goes out, indicating that all the remaining hot melt glue particles have been collected. This allows the operator to stop the collection operation in a timely manner.

[0019] In some embodiments, a feed power conveyor is installed between the top of the melting device and the main feed pipe, and the melting device has a suction pipe inside that communicates with the feed power conveyor and extends to the bottom of the melting device.

[0020] Therefore, the feed power conveyor can use the suction pipe to recover all the remaining hot melt adhesive particles in the melting device into the cavity, avoiding the problem of mixed contamination of hot melt adhesive particles of different colors due to incomplete cleaning.

[0021] In some embodiments, the granule storage box includes a first cavity and a second cavity, the discharge assembly includes two discharge branch pipes, the infeed assembly includes two infeed branch pipes, and both the discharge switching valve and the infeed switching valve have two valve positions.

[0022] Therefore, by setting up two chambers, two different colors of hot melt adhesive granules can be stored simultaneously for later use, and can be conveniently selected as needed without manual replacement.

[0023] In some embodiments, the discharge port of the first cavity is provided with a first discharge conveying power device, the discharge port of the second cavity is provided with a second discharge conveying power device, the first discharge conveying power device is connected to a first discharge branch pipe, and the second discharge conveying power device has a second discharge branch pipe; the discharge switching valve is a three-way valve and the three valve ports are respectively connected to the first discharge branch pipe, the second discharge branch pipe, and the main discharge pipe.

[0024] The inlet of the first chamber is connected to the first feed branch pipe, and the inlet of the second chamber is connected to the second feed branch pipe; the feed switching valve is a three-way valve and the three valve ports are respectively connected to the first feed branch pipe, the second feed branch pipe, and the main feed pipe.

[0025] Therefore, by switching the connection and disconnection between the first and second discharge branch pipes and the main discharge pipe through the discharge switching valve, hot melt adhesive particles of different colors in the two chambers can be supplied separately; by switching the connection and disconnection between the first and second infeed branch pipes and the main infeed pipe through the infeed switching valve, the hot melt adhesive particles can be recycled back into the corresponding chamber.

[0026] In some implementations, the discharge power conveyor and the infeed power conveyor are pneumatic conveyors. Thus, by providing power pneumatically, the hot melt adhesive granules can be transported between the cavity and the melting device.

[0027] In some implementations, the bottom of the mounting frame is equipped with casters, the sides of the mounting frame are provided with handles, and the top of the granule storage box is provided with a lid.

[0028] Therefore, by installing casters and handles, the installation frame can be moved and transported easily, enabling its use in conjunction with the hot melt adhesive device; by installing a cover, the hot melt adhesive particles in the cavity can be prevented from being contaminated by impurities in the outside air. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural schematic diagram of a multi-color adhesive granule alternating supply device for a furniture edge banding machine according to an embodiment of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of a multi-color granule alternating supply device according to another embodiment of the present invention, with the mounting frame removed.

[0031] Figure 3 This is a schematic diagram of a pneumatic conveyor according to another embodiment of the present invention.

[0032] In the picture:

[0033] 1. Mounting frame; 11. Conveyor switch; 12. Recycling switch; 13. Casters; 14. Handle; 2. Granule storage box; 21. Cavity; 211. First cavity; 212. Second cavity; 22. Discharge port; 23. Inlet; 24. Box cover; 3. Discharge assembly; 31. Main discharge pipe; 32. Discharge switching valve; 33. Discharge branch pipe; 331. First discharge branch pipe; 332. Second discharge branch pipe; 34. Discharge power conveyor; 341. First discharge power conveyor; 342. Second discharge power conveyor; 4. Inlet assembly; 41. Main inlet pipe; 42. Inlet switching valve; 43. Inlet branch pipe; 431. First inlet branch pipe; 432. Second inlet branch pipe; 44. Inlet power conveyor; 5. Controller; 6. Melting device; 7. High-level sensor; 8. Low-level sensor. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. The terms "comprising," "including," "having," and their variations all mean "including but not limited to," unless otherwise specifically emphasized.

[0036] Figure 1 The diagram schematically illustrates a multi-color granule alternating supply device for a furniture edge banding machine according to an embodiment of the present invention. Figure 1As shown, the device includes: a mounting frame 1, a granule storage box 2, a discharge assembly 3, a feed assembly 4, and a controller 5. The granule storage box 2 is connected to the mounting frame 1. The granule storage box 2 includes at least two cavities 21 for storing granules. Each cavity 21 has a discharge port 22 at its bottom and a feed port 23 at its top. The discharge assembly 3 includes a main discharge pipe 31, a discharge switching valve 32, several discharge branch pipes 33, and a discharge power conveyor 34 that provides power to the melting device 6 for conveying adhesive particles. One end of the main discharge pipe 31 is connected to the melting device 6, and the other end of the main discharge pipe 31 is connected to the discharge switching valve 32. The number of discharge branch pipes 33 is the same as the number of cavities 21. The discharge port 22 of each cavity 21 is connected to one end of a discharge branch pipe 33, and the other end of the discharge branch pipe 33 is connected to the discharge switching valve 32. By switching the valve position of the discharge switching valve 32, the main discharge pipe 31 can be connected to any discharge branch pipe 33, thereby connecting the cavity 21 connected to the discharge branch pipe 33 to the melting device 6 through the pipe. The feeding assembly 4 includes a main feeding pipe 41, a feeding switching valve 42, several feeding branch pipes 43, and a feeding power conveyor 44 that provides power to the cavity 21 for recycling adhesive particles. One end of the main feeding pipe 41 is connected to the melting device 6, and the other end of the main feeding pipe 41 is connected to the feeding switching valve 42. The number of feeding branch pipes 43 is the same as the number of cavities 21. The inlet 23 of each cavity 21 is connected to one end of a feeding branch pipe 43, and the other end of the feeding branch pipe 43 is connected to the feeding switching valve 42. By switching the valve position of the feeding switching valve 42, the main feeding pipe 41 can be connected to any feeding branch pipe 43, thereby connecting the cavity 21 connected to the feeding branch pipe 43 to the melting device 6. The controller 5 is electrically connected to the discharge switching valve 32, the discharge power conveyor 34, the inlet switching valve 42, and the inlet power conveyor 44. The electrical signals sent by the controller 5 can control the opening and closing of different valve ports of the discharge switching valve 32, thereby switching the connection between different discharge branch pipes 33 and the main discharge pipe 31. The electrical signals sent by the controller 5 can also control the opening and closing of different valve ports of the inlet switching valve 42, thereby switching the connection between different inlet branch pipes 43 and the main inlet pipe 41. The electrical signals sent by the controller 5 can also control the start and stop of the discharge power conveyor 34 and the inlet power conveyor 44.

[0037] Thus, when the multi-color glue granule alternating supply device for the furniture edge banding machine is not working, the discharge power conveyor 34 and the infeed power conveyor 44 will not start. When the melting glue device 6 needs to use hot melt glue granules from a certain cavity 21 (e.g., cavity A), the controller 5 controls the discharge switching valve 32 to connect the discharge branch pipe 33 connected to cavity A with the main discharge pipe 31, and controls the discharge power conveyor 34 to start, so that the hot melt glue granules in cavity A are transported to the melting glue device 6 along the corresponding discharge branch pipe 33, discharge switching valve 32, and main discharge pipe 31. When the melting adhesive device 6 finishes processing one type of sheet material and begins processing another, requiring hot melt adhesive granules of a different color (e.g., granules from cavity B), the controller 5 closes the discharge switching valve 32 and the discharge power conveyor 34, switches the feed switching valve 42 to connect the feed branch pipe 43 (connected to cavity A) to the main feed pipe 41, and then starts the feed power conveyor 44, allowing any remaining unused hot melt adhesive granules in the melting adhesive device 6 to return through the main feed pipe 41, the feed switching valve 42, and the corresponding feed branch pipe 43. Once the hot melt adhesive granules of the specified color are received into cavity A and all remaining granules have been recovered, the feed switching valve 42 and feed power conveyor 44 are closed, while the discharge switching valve 32 is switched. This connects cavity B, containing the hot melt adhesive granules needed for the next operation, to the main discharge pipe 31 via the corresponding discharge branch pipe 33. The discharge power conveyor 34 is then activated, transporting the hot melt adhesive granules needed for the next operation to the melting device 6 via the discharge branch pipe 33, discharge switching valve 32, and main discharge pipe 31. This process is repeated as needed, achieving automatic supply of hot melt adhesive granules of various colors and automatic recovery of remaining granules. This reduces manual replacement of hot melt adhesive granules and recovery of remaining granules, improving work efficiency and eliminating safety hazards.

[0038] In a specific embodiment, the number of discharge power conveyors 34 is the same as the number of cavities 21. The discharge power conveyors 34 are located between the discharge port 22 and the discharge branch pipe 33. Each cavity 21 has a dedicated discharge power conveyor 34, which provides power to transport the hot melt adhesive particles in the cavity 21 to the melting device 6, thereby independently controlling the discharge of each cavity 21 to achieve on-demand supply of different hot melt adhesive particles. Furthermore, the multi-color adhesive particle alternating supply device for the furniture edge banding machine also includes a high-position sensor 7 and a low-position sensor 8. The high-position sensor 7 is located at the top of the melting device 6, and the low-position sensor 8 is located at the bottom of the melting device 6; the controller 5 is electrically connected to the high-position sensor 7 and the low-position sensor 8. When the hot melt adhesive granules in the melting device 6 are full, the high-level sensor 7 located at the top of the melting device 6 generates a sensing signal, which is transmitted to the controller 5. The controller 5 then stops the discharge power conveyor 34, preventing further feeding of hot melt adhesive granules into the melting device 6 and avoiding excessive overflow. After the melting device 6 has been working for a period of time, the hot melt adhesive granules in the melting device 6 are continuously consumed, and its position continuously decreases until the low-level sensor 8 located at the bottom of the melting device 6 can no longer detect hot melt adhesive granules. This indicates that the hot melt adhesive granules in the melting device 6 are almost depleted, and the low-level sensor 8 generates a sensing signal, which is transmitted to the controller 5. The controller 5 then starts the discharge power conveyor 34 to feed hot melt adhesive granules into the melting device 6 again. This cycle repeats, thereby achieving automatic feeding and reducing the frequency of manual addition of hot melt adhesive granules. In addition, the low-position sensor 8 also plays a role when the melting device 6 needs to switch glue particles. The low-position sensor 8 determines whether there are any remaining glue particles in the melting device 6. If the low-position sensor 8 detects that there is residual material, the feeding power conveyor 44 can be started to transport the remaining hot melt glue particles in the melting device 6 back to the corresponding cavity 21. There is no need for manual cleaning, which can eliminate safety hazards and improve work efficiency.

[0039] More specifically, the multi-color glue granule alternating supply device for the furniture edge banding machine also includes a conveying switch 11 and a recovery switch 12, both of which are mounted on the frame and electrically connected to the controller 5. Adjusting the conveying switch 11 sends a switching signal to control the start / stop state of the discharge switching valve 32 and the discharge power conveyor 34. On-site operators can select the corresponding identifier for different chambers 21 according to actual production needs. For example, when chamber A is selected, discharge is required from chamber A. At this time, the conveying switch 11 sends a control signal to the controller 5 to switch the valve position of the discharge switching valve 32, connecting the discharge branch pipe 33 corresponding to chamber A to the main discharge pipe 31. Then, the discharge power conveyor 34 is started, and glue granules are transported from chamber A to the melting device 6, thereby achieving the purpose of independently controlling the supply of hot melt glue granules from a specific chamber 21 to the melting device 6. Adjusting the recovery switch 12 can send a switching signal to control the start / stop status of the feed switching valve 42 and the feed power conveyor 44. When the glue melting device 6 needs to replace the glue particles in cavity B, first turn off the conveyor switch 11 to stop the discharge power conveyor 34. If there are unused glue particles in the glue melting device 6 corresponding to cavity A, the operator can turn the recovery switch 12 and select the cavity A identifier. At this time, the recovery switch 12 sends a control to the controller 5 to switch the feed switching valve 42 to connect the feed branch pipe 43 corresponding to cavity A to the feed main pipe 41. Then, the feed power conveyor 44 is started to recover the unwanted glue particles from the glue melting device 6 to cavity A. Thus, the remaining hot melt glue particles in the glue melting device 6 are recovered into cavity A, which is used to store glue particles of this color. Then, the conveyor switch 11 is turned again to select the corresponding cavity B identifier and glue particles in cavity B are fed back into the glue melting device 6.

[0040] Preferably, the low-position sensor 8 and the high-position sensor 7 are connected to sensor lights. During the hot melt adhesive particle recycling process, when the sensor light on the low-position sensor 8 illuminates, it indicates that there are still remaining hot melt adhesive particles in the melting device 6 and simultaneously sends a signal to the controller 5. At this time, the operator can adjust the recycling switch 12 and start the feeding power conveyor 44 to recycle the remaining hot melt adhesive particles in the melting device 6 into the corresponding cavity 21 until the low-position sensor light goes out, indicating that the hot melt adhesive particles in the melting device 6 have been completely recycled, allowing the operator to stop the recycling operation in a timely manner. When the melting device 6 is in operation, if the low-position sensor 8 senses insufficient adhesive particles, it sends a signal to automatically control the discharge power conveyor 34 to start working, replenishing the melting device 6 with adhesive particles; when the sensor light on the high-position sensor 7 illuminates, indicating that the melting device 6 is full of adhesive particles, it sends a signal to control the discharge power conveyor 34 to stop working, realizing automatic feeding.

[0041] Preferably, the top of the feed power conveyor 44 and the melting device 6 are positioned between the main feed pipe 41 and the feed line. Figure 2As shown, the feed power conveyor 44 is installed on top of the melting device 6. The melting device 6 has an internal suction pipe 61 (located inside and obscured, not shown) that communicates with the feed power conveyor 44. The suction pipe 61 extends to the bottom of the melting device 6. When the feed power conveyor 44 is started, the hot melt adhesive particles at the bottom of the melting device 6 can be recovered into the cavity 21 through the suction pipe 61, ensuring thorough recovery and avoiding the problem of mixed contamination of hot melt adhesive particles of different colors due to incomplete cleaning.

[0042] In an actual production embodiment, combined with Figure 1 As shown in Figure 2, the granule storage box 2 includes two cavities 21, namely the first cavity 211 and the second cavity 212. The discharge assembly 3 includes two discharge branch pipes 33, and the infeed assembly 4 includes two infeed branch pipes 43. Both the discharge switching valve 32 and the infeed switching valve 42 have two valve positions. The first cavity 211 contains hot melt granules of color a, and the second cavity 212 contains hot melt granules of color b. The discharge port 22 of the first cavity 211 is equipped with a first discharge conveying power device, and the discharge port 22 of the second cavity 212 is equipped with a second discharge conveying power device. The first discharge conveying power device is connected to the first discharge branch pipe 331, and the second discharge conveying power device is connected to the second discharge branch pipe 332. The discharge switching valve 32 is a three-way valve, and its three valve ports are respectively connected to the first discharge branch pipe 331, the second discharge branch pipe 332, and the main discharge pipe 31. The inlet 23 of the first cavity 211 is connected to the first feed branch pipe 431, and the inlet 23 of the second cavity 212 is connected to the second feed branch pipe 432; the feed switching valve 42 is a three-way valve and its three valve ports are respectively connected to the first feed branch pipe 431, the second feed branch pipe 432, and the feed main pipe 41.

[0043] Thus, when the melting device 6 needs to use the hot melt adhesive particles in the first cavity 211, the controller 5 controls the discharge switching valve 32 to connect the first discharge branch pipe 331 with the main discharge pipe 31, and controls the first discharge power conveyor 341 to start, so that the hot melt adhesive particles in the first cavity 211 are transported to the melting device 6 along the first discharge branch pipe 331, the discharge switching valve 32, and the main discharge pipe 31. When the melting device 6 needs to use the b hot melt adhesive particles in the second chamber 212, the controller 5 controls the discharge switching valve 32 and the first discharge power conveyor 341 to close. The controller observes whether the indicator light on the low-position sensor 8 is on. If the indicator light is on, it indicates that there are still a hot melt adhesive particles (a) remaining in the melting device 6. The controller then controls the feed switching valve 42 to switch, connecting the first feed branch pipe 431 to the main feed pipe 41. The controller then starts the first feed power conveyor 44, allowing the remaining a hot melt adhesive particles (a) in the melting device 6 to pass through the main feed pipe 41 and the feed switching valve 42. The first feed branch pipe 431 enters the first cavity 211 until the sensor light of the low position sensor 8 goes out, indicating that all the remaining hot melt adhesive particles have been recovered. Then, the feed switching valve 42 and the first feed power conveyor 44 are closed, and the discharge switching valve 32 is switched to connect the second discharge branch pipe 332 with the discharge main pipe 31. Then, the second discharge power conveyor 342 is started, so that the hot melt adhesive particles b in the second cavity 212 are transported to the melting device 6 through the second discharge branch pipe 332, the discharge switching valve 32, and the discharge main pipe 31.

[0044] like Figure 3 As shown, in a specific embodiment, the discharge power conveyor 34 and the feed power conveyor 44 are pneumatic conveyors. When the pneumatic conveyor is started, compressed air Q in a specific direction is rushed in from the outside. The compressed air drives the airflow inside the pneumatic conveyor (34, 44) to flow in a specific direction, thereby generating a pressure difference, which causes the hot melt adhesive particles to move from the cavity 21 to the melting device 6, or from the melting device 6 to the cavity 21, so as to realize the operation of conveying and recycling adhesive particles.

[0045] Specifically, the bottom of the mounting frame 1 is equipped with casters 13 for easy movement of the device; the side of the mounting frame 1 is provided with handles 14 for easy handling of the device and to enable it to be used in conjunction with the hot melt adhesive device 6; the top of the adhesive granule storage box 2 is provided with a box cover 24 to prevent impurities in the outside air from entering the cavity 21 and contaminating the hot melt adhesive granules.

[0046] This invention discloses a multi-color adhesive granule alternating supply device for a furniture edge banding machine. By setting up multiple chambers and multiple discharge sub-pipes, each discharge sub-pipe is individually controlled by a discharge power conveyor. In conjunction with a discharge switching valve, different chambers can be switched to connect to the melting device as needed, thereby providing the melting device with hot melt adhesive granules of different colors. This reduces the need for manual replacement of hot melt adhesive granules and improves work efficiency. Simultaneously, by setting up an infeed component, remaining hot melt adhesive granules in the melting device can be transported back to the corresponding chamber without manual removal, thus eliminating safety hazards and improving work efficiency.

[0047] The above descriptions are merely some embodiments of the present invention. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by the present invention.

Claims

1. A multi-color bead alternately supplying device for a furniture edge banding machine, characterized in that, The application relates to a glue particle storage device, which comprises the following parts: a mounting frame; a glue particle storage box connected to the mounting frame, wherein the glue particle storage box comprises at least two cavities for storing glue particles, each of the cavities is provided with a discharging port at the bottom and a feeding port at the top; a discharging assembly, which comprises a discharging main pipeline, a discharging switch valve, a plurality of discharging branch pipelines and a discharging power conveyor for providing conveying glue particle power to a glue melting device, one end of the discharging main pipeline is connected to the glue melting device, the other end of the discharging main pipeline is connected to the discharging switch valve, the number of the discharging branch pipelines is the same as that of the cavities, the discharging port of each of the cavities is connected to one end of one of the discharging branch pipelines, the other end of the discharging branch pipeline is connected to the discharging switch valve, and any one of the cavities can be communicated with the glue melting device by switching the valve position of the discharging switch valve; a feeding assembly, which comprises a feeding main pipeline, a feeding switch valve, a plurality of feeding branch pipelines and a feeding power conveyor for providing recycling glue particle power to the cavities, one end of the feeding main pipeline is connected to the glue melting device, the other end of the feeding main pipeline is connected to the feeding switch valve, the number of the feeding branch pipelines is the same as that of the cavities, the feeding port of each of the cavities is connected to one end of one of the feeding branch pipelines, the other end of the feeding branch pipeline is connected to the feeding switch valve, and any one of the cavities can be communicated with the glue melting device by switching the valve position of the feeding switch valve; a controller, which is electrically connected to the discharging switch valve, the discharging power conveyor, the feeding switch valve and the feeding power conveyor.

2. The multicolor bead alternate feeding apparatus according to claim 1, wherein The number of the discharging power conveyors is the same as that of the cavities, and the discharging power conveyor is arranged between the discharging port and the discharging branch pipeline.

3. The apparatus according to claim 1, wherein The controller is electrically connected to a high-level sensor and a low-level sensor, the high-level sensor is arranged at the top of the glue melting device, and the low-level sensor is arranged at the bottom of the glue melting device.

4. The apparatus according to claim 3, wherein The controller is electrically connected to a conveying switch and a recycling switch arranged on the mounting frame, the conveying switch can send a switching signal for controlling the start-stop state of the discharging switch valve and the discharging power conveyor, and the recycling switch can send a switching signal for controlling the start-stop state of the feeding switch valve and the feeding power conveyor.

5. The apparatus according to claim 3, wherein The low-level sensor and the high-level sensor are connected with sensing lamps.

6. The multicolor bead alternate feeding apparatus according to any one of claims 1 to 5, characterized by The feeding power conveyor is arranged between the top of the glue melting device and the feeding main pipeline, a suction pipe, which is communicated with the feeding power conveyor, is arranged in the glue melting device, and the suction pipe extends to the bottom of the glue melting device.

7. The multicolor bead alternate feeding apparatus according to any one of claims 1 to 5, characterized by The glue particle storage box comprises a first cavity and a second cavity, the discharging assembly comprises two discharging branch pipelines, the feeding assembly comprises two feeding branch pipelines, and the discharging switch valve and the feeding switch valve each have two valve positions.

8. The multicolor bead alternate feeding apparatus according to claim 7, wherein The discharge port of the first cavity is provided with a first discharge conveying power device, the discharge port of the second cavity is provided with a second discharge conveying power device, the first discharge conveying power device is connected with a first discharge sub-pipe, the second discharge conveying power device is connected with a second discharge sub-pipe; the discharge switch valve is a three-way valve and three valve ports are connected to the first discharge sub-pipe, the second discharge sub-pipe and a discharge main pipe respectively. The inlet port of the first cavity is connected with a first inlet sub-pipe, the inlet port of the second cavity is connected with a second inlet sub-pipe; the inlet switch valve is a three-way valve and three valve ports are connected to the first inlet sub-pipe, the second inlet sub-pipe and an inlet main pipe respectively.

9. The apparatus according to claim 1, wherein The discharge power conveyor and the inlet power conveyor are pneumatic conveyors.

10. The apparatus according to claim 1, wherein The bottom of the mounting frame is provided with casters, the side of the mounting frame is provided with a handle, and the top of the rubber particle storage box is provided with a box cover.

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