Glue supply system suitable for continuous production of vegetable glue

Abstract

The utility model discloses a glue supply system suitable for continuous production of vegetable glue, which comprises a first glue supply barrel, a connecting pipe, a first switch valve and a second glue supply barrel, a glue inlet pipe and a glue outlet pipe which are communicated with the corresponding glue containing cavities are respectively arranged on the first glue supply barrel and the second glue supply barrel; the glue outlet end of the glue outlet pipe in the first glue supply barrel is connected with the glue inlet end of the glue inlet pipe in the second glue supply barrel through a connecting pipe, and the first switch valve is arranged on the connecting pipe; the connecting pipe is provided with an extraction opening, the extraction opening is located in front of the first switch valve, and a second switch valve is installed on the extraction opening. The glue supply system can continuously supply the glue solution, ensures that the glue solution is at a proper temperature and is not solidified in the glue supply process, can reduce the influence of bubbles in the glue change process, and is beneficial to ensuring the smooth conveying of the glue solution and effectively reducing the amount of waste glue.

Description

Technical Field

[0001] This utility model relates to a feeding device, and more particularly to a glue feeding system suitable for continuous production of plant glue. Background Technology

[0002] Soft capsules are mainly divided into two categories: animal gelatin soft capsules and plant-based gelatin soft capsules. The shells of plant-based gelatin soft capsules are made from plant-derived ingredients, such as carrageenan and modified starch. Plant-based gelatin solutions, with carrageenan as the main component, solidify very easily when cold. Therefore, during the supply process, the temperature of the plant-based gelatin solution in the supply tank must be maintained at no less than 95°C. However, when there is insufficient gelatin in the supply tank during continuous production, replacing the supply tank will not only cause the gelatin in the new tank to solidify in the tubing due to the lower temperature, but also, before the gelatin is drawn from the new tank through the conveying pipe, the presence of air bubbles in the pipe can easily cause waste gelatin, thus affecting continuous production and reducing efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a glue supply system suitable for continuous production of plant glue. This glue supply system can continuously supply glue liquid, and ensure that the glue liquid is at a suitable temperature and does not solidify during the glue supply process. It can also reduce the impact of air bubbles during glue change, which helps to ensure the smooth delivery of glue liquid and effectively reduce the amount of waste glue.

[0004] To solve the above technical problems, the following technical solution is adopted:

[0005] A glue supply system suitable for continuous production of plant-based gum is characterized by comprising a first glue supply tank, a connecting pipe, a first switch valve, and a second glue supply tank. Both the first and second glue supply tanks are equipped with a glue-holding cavity and a heating and insulation device. The first and second glue supply tanks are also respectively equipped with an inlet pipe and an outlet pipe communicating with the corresponding glue-holding cavity. The inlet end of the inlet pipe is located outside the corresponding glue-holding cavity, the outlet end is located inside the corresponding glue-holding cavity, the inlet end of the outlet pipe is located at the bottom of the corresponding glue-holding cavity, and the outlet end is located outside the corresponding glue-holding cavity. The outlet end of the outlet pipe in the first glue supply tank is connected to the inlet end of the inlet pipe in the second glue supply tank via the connecting pipe. The first switch valve is located on the connecting pipe. The connecting pipe is equipped with an air extraction port, which is located in front of the first switch valve. A second switch valve is installed on the air extraction port.

[0006] When the above-mentioned glue supply system supplies plant glue, the shot press is connected to the glue outlet pipe of the second glue supply tank, and the glue liquid delivered from the glue-filling chamber of the second glue supply tank is supplied to the shot press. When the glue liquid in the second glue supply tank is insufficient, the first switch valve can be opened to draw the glue liquid from the first glue supply tank to the second glue supply tank for replenishment, so that the second glue supply tank can achieve continuous glue supply. Under the action of the heating and heat preservation device, the glue liquid supplied from the first glue supply tank to the second glue supply tank is kept at a suitable temperature (e.g., not lower than 95°C) and will not solidify. After the first glue supply tank has finished supplying glue, the first switch valve can be closed. At this time, new glue liquid can be added to the first glue supply tank. After the glue liquid has submerged the glue inlet end of the glue outlet pipe of the first glue supply tank, the second switch valve can be opened, and the vacuum device can be used to purge the air in the glue outlet pipe of the first glue supply tank in advance to reduce the generation of air bubbles. The first glue supply tank can also be heated and kept warm by the heating and heat preservation device, waiting for the next glue supply, and so on. This glue supply system uses a direct series connection between a first glue supply tank and a second glue supply tank. The first glue supply tank can serve as a backup glue supply tank, allowing air to be purged from the pipeline in advance. When the glue in the second glue supply tank is insufficient, glue at a suitable temperature can be supplied directly, preventing the glue from solidifying in the pipeline. This reduces the impact of air bubbles during glue change, ensuring smooth glue delivery and effectively reducing the amount of waste glue.

[0007] In a preferred embodiment, the first and second glue supply tanks are provided with an air inlet and an air outlet that connect to the outside and the glue-containing chamber. A pressure regulating valve is installed on the air inlet, and a third switching valve is installed on the air outlet. The glue supply system also includes a vacuum device and a compressed air source. The vacuum device is connected to the air inlet and the air outlet, respectively. The compressed air source is connected to the air inlet. When the second glue supply tank is supplying glue, the first switching valve and the third switching valve at the air outlet of the second glue supply tank are closed, and the pressure regulating valve at the air inlet of the second glue supply tank is opened (the pressure regulating valve stabilizes the air pressure, keeping the glue supply speed uniform). Compressed air is supplied with gas at a certain pressure through the air inlet of the second glue supply tank into the glue-holding chamber, allowing the glue in the second glue supply tank to be transported to the shot press machine through the glue outlet pipe under air pressure. When the glue in the second glue supply tank is insufficient, the third switching valve at the air outlet of the first glue supply tank and the pressure regulating valve at the air inlet of the second glue supply tank are closed, and the pressure regulating valve at the air inlet of the first glue supply tank, the first switching valve, and the third switching valve at the air outlet of the second glue supply tank are opened. The vacuum device removes the gas from the glue-holding chamber of the second glue supply tank through the air outlet, while simultaneously, compressed air is supplied to the first glue supply tank through the air inlet of the first glue supply tank. A pressurized gas is introduced into the glue-filling chamber of the glue tank, causing the glue in the first glue-supply tank to be transported to the second glue-supply tank under pressure. After the first glue-supply tank finishes supplying glue, the second glue-supply tank continues to supply glue. At this time, the first switch valve is closed, the pressure regulating valve at the air inlet of the first glue-supply tank is closed, and the third switch valve at the air outlet of the first glue-supply tank is open. The vacuum device removes the gas from the glue-filling chamber of the first glue-supply tank through the air outlet, allowing external glue to be supplied into the glue-filling chamber of the first glue-supply tank under pressure through the glue inlet end of the glue inlet pipe. After the glue has submerged the glue inlet end of the glue outlet pipe of the first glue-supply tank, the second switch valve can be opened, and the vacuum device can be used to purge the air in the pipe beforehand. When the first glue-supply tank is filled with new glue, the vacuum device can also gradually remove the gas and moisture from the first glue-supply tank through the air outlet. The vacuum device can be a vacuum pump.

[0008] In a preferred embodiment, the heating and insulation device includes a double-walled space located outside the glue-containing cavity, and the double-walled space has an inlet and an outlet. The glue supply system includes a thermostatic control box and a circulating pump. The inlet of the thermostatic control box is connected to the outlet of the double-walled space, the outlet of the thermostatic control box is connected to the inlet of the circulating pump, and the outlet of the circulating pump is connected to the inlet of the double-walled space. The glue supply tank heats and insulates the glue liquid by means of heat transfer through a heat-conducting liquid (such as heat-conducting oil or water) in the thermostatic control box. The heat-conducting liquid enters the double-walled space from the outlet of the thermostatic control box via the circulation pump, exchanges heat with the glue liquid in the glue-containing cavity, and then flows back to the thermostatic control box after flowing to the outlet of the double-walled space, forming a circulation and maintaining the glue liquid at a suitable temperature.

[0009] In a preferred embodiment, the bottom wall of the glue-holding cavity is an inclined surface that gradually slopes downwards from the glue inlet pipe to the glue outlet pipe. This inclined surface allows the glue to flow from the glue-holding cavity towards the glue outlet pipe.

[0010] In a further preferred embodiment, a collecting groove is provided on the bottom wall of the glue-holding cavity at a position corresponding to the glue-dispensing pipe, with the glue inlet end of the glue-dispensing pipe located in the collecting groove. When there is not much glue remaining in the container, all the remaining glue can be collected in the collecting groove and then discharged through the glue-dispensing pipe.

[0011] In a further preferred embodiment, the bottom of the collecting groove is provided with a bottom hole, and the first and second glue supply tanks are also provided with bottom pipes that extend from the outside and connect to the bottom hole. A fourth switch valve is provided on the bottom pipes. When cleaning the glue supply tanks, the bottom wall of the glue-holding cavity can be backflushed and cleaned through the bottom pipes to prevent the collecting groove from becoming clogged.

[0012] In a preferred embodiment, the first and second glue supply tanks each include a tank body and a movable lid. The tank body has an upward-facing glue-holding cavity, and the movable lid closes onto the opening of the glue-holding cavity. When not in use, the movable lid can be opened to clean the tank body; or, before preparation, the movable lid can be opened to pour the glue into the glue-holding cavity. When the first and second glue supply tanks are equipped with the aforementioned air inlet and air outlet, the air inlet and air outlet are located on the movable lid.

[0013] In a preferred embodiment, the front end of the connecting pipe is detachably connected to the dispensing end of the dispensing pipe in the first glue supply tank, and the rear end of the connecting pipe is detachably connected to the inlet end of the inlet pipe in the second glue supply tank. With this configuration, the first and second glue supply tanks can be manufactured to the same specifications and can be easily disassembled for cleaning when not in use.

[0014] The beneficial effects of this invention are as follows: this glue supply system can continuously supply glue liquid, and ensure that the glue liquid is at a suitable temperature and will not solidify during the glue supply process. It can also reduce the impact of air bubbles during glue change, which helps to ensure the smooth delivery of glue liquid and effectively reduce the amount of waste glue. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the adhesive supply system in an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the bottom wall of the glue-containing cavity in an embodiment of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0018] like Figure 1-2The illustrated glue supply system for continuous production of plant-based gum includes a first glue supply tank 1, a connecting pipe 2, a first switching valve 3, and a second glue supply tank 4. Both the first and second glue supply tanks 1 and 4 are equipped with a glue-holding chamber 5 and a heating and insulation device 6. The first and second glue supply tanks 1 and 4 are also respectively equipped with an inlet pipe 7 and an outlet pipe 8 communicating with the corresponding glue-holding chamber 5. The inlet end of the inlet pipe 7 is located outside the corresponding glue-holding chamber 5, and the outlet end of the inlet pipe 7 is located inside the corresponding glue-holding chamber 5. Inside cavity 5, the glue inlet end of glue outlet tube 8 is located at the bottom of the corresponding glue-holding cavity 5, and the glue outlet end of glue outlet tube 8 is located outside the corresponding glue-holding cavity 5; the glue outlet end of glue outlet tube 8 in the first glue supply tank 1 is connected to the glue inlet end of glue inlet tube 7 in the second glue supply tank 4 through connecting pipe 2, and the first switch valve 3 is provided on the connecting pipe 2; the connecting pipe 2 is provided with an air extraction port 201, which is located in front of the first switch valve 3, and a second switch valve 2011 is installed on the air extraction port 201.

[0019] When the above-mentioned glue supply system supplies plant glue, the shot press is connected to the glue outlet pipe 8 of the second glue supply tank 4, and the glue liquid delivered from the glue holding chamber 5 of the second glue supply tank 4 is supplied to the shot press. When the glue liquid in the second glue supply tank 4 is insufficient, the first switch valve 3 can be opened to draw the glue liquid from the first glue supply tank 1 to the second glue supply tank 4 for replenishment, so that the second glue supply tank 4 can achieve continuous glue supply. And under the action of the heating and heat preservation device 6, the glue liquid supplied from the first glue supply tank 1 to the second glue supply tank 4 is kept at a suitable temperature (e.g., not lower than 100°C). At 95℃, it will not solidify; after the first glue supply tank 1 completes the glue supply, the first switch valve 3 can be closed. At this time, new glue can be added to the first glue supply tank 1. After the glue has submerged the glue inlet end of the glue outlet pipe 8 of the first glue supply tank 1, the second switch valve 2011 can be opened, and the vacuum device can be used to purge the air in the glue outlet pipe 8 of the first glue supply tank 1 in advance to reduce the generation of air bubbles; and the first glue supply tank 1 can also be heated and kept warm by the heating and heat preservation device 6, waiting for the next glue supply, and so on. This glue supply system adopts the method of directly connecting the first glue supply tank 1 and the second glue supply tank 4 in series. The first glue supply tank 1 can be used as a backup glue supply tank, purging the air in the pipeline in advance, and directly providing glue at a suitable temperature when the glue in the second glue supply tank 4 is insufficient, avoiding the glue from solidifying in the pipeline, reducing the impact of air bubbles during glue change, which is conducive to ensuring the smooth delivery of glue and effectively reducing the amount of waste glue.

[0020] The first glue supply tank 1 and the second glue supply tank 4 are equipped with an air inlet 9 and an air outlet 10 that connect to the outside and the glue-containing chamber 5. A pressure regulating valve 901 is installed on the air inlet 9, and a third switching valve 1001 is installed on the air outlet 10. The glue supply system also includes a vacuum device (not shown in the figure) and a compressed air source (not shown in the figure). The vacuum port 201 and the air outlet 10 are connected to the vacuum device, respectively; the air inlet 9 is connected to the compressed air source. When the second glue supply tank 4 supplies glue, the first switching valve 3 and the third switching valve 1001 of the air outlet 10 on the second glue supply tank 4 are closed, and the pressure regulating valve 901 of the air inlet 9 on the second glue supply tank 4 is opened (the pressure regulating valve 901 stabilizes the air pressure, keeping the glue supply speed uniform). The compressed air source sends gas at a certain pressure into the glue-containing chamber 5 of the second glue supply tank 4 through the air inlet 9, allowing the glue in the second glue supply tank 4 to be transported through the glue outlet pipe 8 of the second glue supply tank 4 under air pressure. The glue is fed into the shot press machine. When the glue in the second glue supply tank 4 is insufficient, the third switch valve 1001 of the air outlet 10 on the first glue supply tank 1 and the pressure regulating valve 901 of the air inlet 9 on the second glue supply tank 4 are closed. The pressure regulating valve 901 of the air inlet 9 on the first glue supply tank 1, the first switch valve 3, and the third switch valve 1001 of the air outlet 10 on the second glue supply tank 4 are opened. The vacuuming device draws away the gas in the glue-containing chamber 5 of the second glue supply tank 4 through the air outlet 10 of the second glue supply tank 4. At the same time, the compressed air source passes through the first glue supply tank 1... The air inlet 9 of the first glue supply tank 1 sends gas at a certain pressure into the glue-filling chamber 5, causing the glue in the first glue supply tank 1 to be transported to the second glue supply tank 4 under the action of air pressure. After the first glue supply tank 1 finishes supplying glue, the second glue supply tank 4 continues to supply glue. At this time, the first switch valve 3 is in the closed state, the pressure regulating valve 901 of the air inlet 9 on the first glue supply tank 1 is closed, and the third switch valve 1001 of the air outlet 10 on the first glue supply tank 1 is opened. The vacuum device draws away the first glue supply tank through the air outlet 10 of the first glue supply tank 1. The gas in the glue-filling chamber 5 allows external adhesive to be fed into the glue-filling chamber 5 of the first glue-supply tank 1 through the glue inlet pipe 7 under air pressure. After the adhesive has submerged the glue inlet pipe 8 of the first glue-supply tank 1, the second switch valve 2011 can be opened, and a vacuum device can be used to purge the air from the pipe beforehand. When the first glue-supply tank 1 is filled with new adhesive, the vacuum device can also gradually remove the gas and moisture from the first glue-supply tank 1 through the air outlet 10. The vacuum device can be a vacuum pump.

[0021] The heating and insulation device 6 includes a double-layered space located outside the glue-containing cavity 5. The double-layered space has an inlet and an outlet. The glue supply system includes a thermostatic control box (not shown in the figure) and a circulation pump (not shown in the figure). The inlet of the thermostatic control box is connected to the outlet of the double-layered space, and the outlet of the thermostatic control box is connected to the inlet of the circulation pump. The outlet of the circulation pump is connected to the inlet of the double-layered space. The glue supply tank heats and insulates the glue solution by transferring heat through a heat-conducting liquid (such as heat-conducting oil or water) in the thermostatic control box. The heat-conducting liquid enters the double-layered space from the outlet of the thermostatic control box via the circulation pump, exchanges heat with the glue solution in the glue-containing cavity 5, and then flows back to the thermostatic control box after reaching the outlet of the double-layered space, forming a circulation and maintaining the glue solution at a suitable temperature.

[0022] The bottom wall 501 of the glue-holding cavity 5 is an inclined surface that gradually slopes downward from the glue inlet tube 7 to the glue outlet tube 8. The inclined surface allows the glue to flow in the glue-holding cavity 5 towards the glue outlet tube 8.

[0023] A collection groove 502 is provided at the bottom wall 501 of the glue-holding chamber 5, corresponding to the position of the glue-dispensing pipe 8, and the glue inlet end of the glue-dispensing pipe 8 is located in the collection groove 502. When there is not much glue left in the bucket, all the remaining glue can be collected in the collection groove 502 and then sent out through the glue-dispensing pipe 8.

[0024] The bottom of the collecting groove 502 is provided with a bottom hole 5021. The first glue supply tank 1 and the second glue supply tank 4 are also provided with a bottom pipe 11, which extends from the outside and connects to the bottom hole 5021. A fourth switch valve 1101 is provided on the bottom pipe 11. When cleaning the glue supply tank, the bottom wall 501 of the glue holding cavity 5 can be backflushed and cleaned through the bottom pipe 11 to prevent the collecting groove 502 from being blocked.

[0025] The first glue supply tank 1 and the second glue supply tank 4 each include a tank body 1401 and a movable cover 1402. The tank body 1401 has an upward-facing glue-holding cavity 5, and the movable cover 1402 closes onto the opening of the glue-holding cavity 5. When not in use, the movable cover 1402 can be opened to clean the tank body 1401; or before preparation, the movable cover 1402 can be opened to pour the glue into the glue-holding cavity 5. When the first glue supply tank 1 and the second glue supply tank 4 are equipped with the aforementioned air inlet 9 and air outlet 10, the air inlet 9 and air outlet 10 are located on the movable cover 1402.

[0026] The front end of the connecting pipe 2 is detachably connected to the dispensing end of the dispensing pipe 8 in the first glue supply tank 1, and the rear end of the connecting pipe 2 is detachably connected to the inlet end of the glue inlet pipe 7 in the second glue supply tank 4. With this configuration, the first glue supply tank 1 and the second glue supply tank 4 can be manufactured to the same specifications, and can be easily disassembled for cleaning when not in use.

Claims

1. A glue supply system suitable for continuous production of plant-based gums, characterized in that: The device includes a first glue supply tank, a connecting pipe, a first switch valve, and a second glue supply tank. Both the first and second glue supply tanks are equipped with glue-holding chambers and heating and insulation devices. The first and second glue supply tanks are also equipped with inlet and outlet pipes respectively, which communicate with the corresponding glue-holding chambers. The inlet end of the inlet pipe is located outside the corresponding glue-holding chamber, the outlet end is located inside the corresponding glue-holding chamber, the inlet end of the outlet pipe is located at the bottom of the corresponding glue-holding chamber, and the outlet end is located outside the corresponding glue-holding chamber. The outlet end of the outlet pipe in the first glue supply tank is connected to the inlet end of the inlet pipe in the second glue supply tank via the connecting pipe. The first switch valve is located on the connecting pipe. The connecting pipe is equipped with an air extraction port, which is located in front of the first switch valve. A second switch valve is installed on the air extraction port.

2. The glue supply system for continuous production of plant-based gums as described in claim 1, characterized in that: The first and second glue supply tanks are provided with an air inlet and an air outlet that connect to the outside and the glue-containing chamber. A pressure regulating valve is installed on the air inlet and a third switching valve is installed on the air outlet. The glue supply system also includes a vacuum device and a compressed air source. The vacuum device is connected to the air inlet and the air outlet, respectively. The compressed air source is connected to the air inlet.

3. The glue supply system for continuous production of plant-based gums as described in claim 1, characterized in that: The heating and heat preservation device includes a double-layer space located outside the glue-holding cavity, and the double-layer space has a liquid inlet and a liquid outlet; the glue supply system includes a constant temperature control box and a circulating pump, the liquid inlet of the constant temperature control box is connected to the liquid outlet of the double-layer space, the liquid outlet of the constant temperature control box is connected to the liquid inlet of the circulating pump, and the liquid outlet of the circulating pump is connected to the liquid inlet of the double-layer space.

4. The glue supply system for continuous production of plant-based gums as described in claim 1, characterized in that: The bottom wall of the glue-holding cavity is an inclined surface that gradually slopes downward from the glue inlet pipe to the glue outlet pipe.

5. A glue supply system suitable for continuous production of plant-based gums as described in claim 4, characterized in that: The bottom wall of the glue-holding cavity is provided with a collection groove at a position corresponding to the glue outlet tube, and the glue inlet end of the glue outlet tube is located in the collection groove.

6. A glue supply system suitable for continuous production of plant-based gums as described in claim 5, characterized in that: The bottom of the collection groove is provided with a bottom hole, and the first glue supply bucket and the second glue supply bucket are also provided with a bottom pipe. The bottom pipe extends from the outside and is connected to the bottom hole. A fourth switch valve is provided on the bottom pipe.

7. A glue supply system suitable for continuous production of plant-based gums as described in claim 1, characterized in that: The first glue supply tank and the second glue supply tank each include a tank body and a movable cover. The tank body has a glue-holding cavity with the opening facing upwards, and the movable cover closes to the opening of the glue-holding cavity.

8. A glue supply system suitable for continuous production of plant-based gums as described in claim 1, characterized in that: The front end of the connecting pipe is detachably connected to the dispensing end of the dispensing pipe in the first glue supply tank, and the rear end of the connecting pipe is detachably connected to the inlet end of the glue inlet pipe in the second glue supply tank.

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