A glue storage device for a molding machine

Abstract

The application relates to the technical field of tobacco processing equipment, and discloses a glue storage device for a forming machine, which comprises a glue storage tank, an opening is formed in the top of the glue storage tank, a communication port is formed in the bottom of the glue storage tank, a valve is arranged on the communication port, a pipe body is in communication with the communication port, a cover body is arranged on the opening and detachably and sealingly connected with the edge of the opening, a pressure regulating structure for changing the liquid pressure in the glue storage tank is arranged on the cover body, a through hole is formed in the cover body and used for allowing the driving end of the pressure regulating structure to enter, and a supporting frame is fixedly connected with the bottom of the glue storage tank. The glue storage device is matched with the pipe body to realize glue supplement for the forming machine, the situation that the middle line glue is manually filled into the forming machine is avoided, and the glue supplement work for the forming machine is convenient and fast.

Description

Technical Field

[0001] This application relates to the field of tobacco processing equipment technology, and specifically to a glue reservoir for applying glue to a molding machine. Background Technology

[0002] Centerline adhesive is one of the main raw and auxiliary materials in the production of cigarette filter rods. It is used to bond the forming paper and filament bundle during the forming process of cigarette filter rods to prevent the filter from coming off.

[0003] The existing filter rod forming machine is equipped with a centerline glue tank. During the forming process, the centerline glue needs to be continuously consumed to spray onto the cigarette filter rod. Therefore, it is necessary to replenish the centerline glue tank on the forming machine regularly. Because the centerline glue has a high viscosity and is easy to cure, it cannot be transported over long distances by pipelines, and can only be replenished to the glue tank of the forming machine in drums on a regular basis.

[0004] Glue-adding workers typically store the centerline glue in a glue tank, then pull the tank to the designated location to replenish the glue for the molding machine. However, a typical glue tank only has a storage function. When replenishing the glue for the molding machine, the connecting port needs to be opened, and a small bucket is used to collect the centerline glue coming out of the connecting port. Finally, the centerline glue in the small bucket is added to the centerline glue cylinder of the molding machine. Because the centerline glue cylinder of the molding machine is located high off the ground (about 1.7 meters), it is not convenient to add glue to the molding machine. Utility Model Content

[0005] This application provides a glue reservoir for adding glue to a molding machine, which aims to solve the problem of inconvenient glue addition during the entire glue addition process in the prior art.

[0006] In one embodiment, a glue reservoir for dispensing glue into a molding machine is provided, comprising:

[0007] A glue storage tank, wherein the top of the glue storage tank has an opening and the bottom of the glue storage tank has a connecting port; a valve is provided on the connecting port; and a pipe is connected to the connecting port.

[0008] A cover body is provided on the opening, and the cover body is detachably and sealingly connected to the edge of the opening; the cover body is provided with a pressure regulating structure for changing the internal liquid pressure of the glue storage tank; the cover body is provided with a through hole for the drive end of the pressure regulating structure to enter;

[0009] A support frame is fixedly connected to the bottom of the glue storage tank.

[0010] The valve is a three-way valve, with the connection port connected to both the outlet and inlet pipes. The glue storage tank is mounted on a mobile cart for replenishing glue to the molding machine during movement.

[0011] In one embodiment, the glue storage tank contains a bag; the bag has a closed space for storing glue; the bag has a connection port that communicates with the communication port; the connection port communicates with the closed space.

[0012] In one embodiment, the pressure regulating structure includes an air pipe; the air pipe is connected to the through hole.

[0013] Specifically, the air pipe is sealed to the through-hole, and a three-way valve is installed on the air pipe. The other two ends of the three-way valve are connected to a high-pressure air source and a negative pressure source, respectively. The high-pressure air source is nitrogen.

[0014] In one embodiment, the pressure regulating structure includes a telescopic cylinder and a pressure plate located above the bag body; the telescopic cylinder is fixedly connected to the cover body, and the telescopic part of the telescopic cylinder passes through the through hole and is fixedly connected to the pressure plate; the pressure plate can reciprocate vertically inside the glue storage tank.

[0015] In one embodiment, the pressure plate has a sliding hole; a first cylinder is slidably connected to the sliding hole, and a second cylinder is slidably connected inside the first cylinder; a plate is slidably connected inside the second cylinder; the telescopic part of the telescopic cylinder is fixedly connected to the top of the plate; and the bottom of the plate is fixedly connected to the bag.

[0016] In one embodiment, the plate has an exhaust hole that communicates with a closed space inside the bag, and the exhaust hole is equipped with an exhaust valve.

[0017] In one embodiment, the glue storage tank is provided with multiple telescopic rods, which are spaced apart circumferentially along the bottom surface of the glue storage tank. One end of each telescopic rod is fixedly connected to the bottom surface of the glue storage tank, and the other end is fixedly connected to the pressure plate. The telescopic rods are located outside the bag body, and a fixing ring is fixedly connected to the outer surface of the bag body. The fixing ring is slidably sleeved on the telescopic rods.

[0018] Specifically, each telescopic rod is fitted with multiple fixing rings, which are spaced out on the bag body.

[0019] In one embodiment, multiple grooves are formed on the inner wall of the glue storage tank, and the multiple grooves are arranged at intervals along the circumference of the inner wall of the glue storage tank; multiple sliders are slidably engaged in each groove, and multiple ring pieces are fixedly connected to the outer surface of the bag body; each slider located at the same horizontal position is fixedly connected to the same ring piece.

[0020] Specifically, when the telescopic cylinder is in the retracted state, the ring plates are spaced apart from each other.

[0021] In one embodiment, a first retaining strip is provided on the side of the telescopic storage tank near the edge of the opening, and a second retaining strip is provided on the lower edge of the cover. The upper surface of the second retaining strip can abut against the lower surface of the first retaining strip. The edge of the opening abuts against the lower surface of the cover through a sealing ring.

[0022] In one embodiment, the outer surface of the glue storage tank is covered with an insulation layer, and the insulation layer contains heating wires and / or water pipes.

[0023] Specifically, a temperature sensor is installed on the outer surface of the glue storage tank. A water pipe is connected to an external cooling water source, and the pipe is spirally wound around the outer surface of the storage tank. The water temperature inside the pipe can be adjusted as needed to ensure that the temperature of the glue in the center of the tank remains within a predetermined range.

[0024] The beneficial effects of this application are:

[0025] The glue storage tank is equipped with a pressure regulating mechanism to adjust the liquid pressure inside. When the pressure inside the storage tank is increased, the liquid is discharged from the pipe body, which connects to the centerline glue cylinder of the burr forming machine, thereby enabling glue replenishment to the forming machine. When the liquid pressure inside the storage tank is decreased, making the pressure inside the storage tank lower than the external pressure, liquid can flow into the storage tank through the connecting port, thus adding glue to the storage tank.

[0026] The pressure regulating structure and the tube body work together to add glue to the molding machine, avoiding the need to manually fill the center line glue bucket and add it to the molding machine, making the glue addition work of the molding machine convenient and quick.

[0027] By setting a pressure regulating structure to adjust the pressure inside the glue storage tank, the glue can be discharged or replenished. This avoids the need to connect a pump body to the glue storage tank connection port. Moreover, since the pumping direction of the pump body cannot be changed, a pump body is required when adding glue to the glue storage tank, and another pump body is required when adding the centerline glue from the glue storage tank to the molding machine. The pressure regulating structure designed in this application can reduce the use of pump bodies and reduce production costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a centerline adhesive reservoir (with insulation layer) according to an embodiment of this application;

[0030] Figure 2 yes Figure 1Enlarged view of point A (the second strip has a slanted section);

[0031] Figure 3 yes Figure 1 Enlarged view of point A (the second strip does not have a slanted section);

[0032] Figure 4 This is a schematic diagram of the linear adhesive reservoir structure (with telescopic cylinder) in one embodiment of this application;

[0033] Figure 5 This is a schematic diagram of the linear adhesive reservoir structure in one embodiment of this application (telescopic rod extended state);

[0034] Figure 6 This is a schematic diagram of the linear adhesive reservoir structure in one embodiment of this application (telescopic rod retracted state);

[0035] Figure 7 This is a schematic diagram of the linear adhesive reservoir structure in one embodiment of this application (with the ring plates spaced apart).

[0036] Figure 8 This is a schematic diagram of the linear adhesive reservoir structure in one embodiment of this application (with the ring pieces in sequential contact).

[0037] Figure 9 This is a schematic diagram of the cross-sectional structure of the plate in one embodiment of this application;

[0038] Labels for each item in the figure:

[0039] 1. Glue storage tank; 11. Opening; 12. Connecting port; 13. Valve; 14. Slide groove; 15. Sliding block; 16. Ring plate; 17. Pipe body; 18. First retaining strip; 2. Cover body; 21. Through hole; 22. Second retaining strip; 3. Pressure regulating structure; 31. Air pipe; 32. Telescopic cylinder; 4. Support frame; 5. Bag body; 6. Pressure plate; 61. Sliding hole; 62. First cylinder body; 63. Second cylinder body; 64. Plate body; 65. Exhaust valve; 7. Telescopic rod; 71. Fixing ring; 8. Insulation layer; 81. Heating wire; 82. Water pipe; 83. Temperature sensor; 9. Sealing ring. Detailed Implementation

[0040] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application. Similarly, the following examples are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 this utility model.

[0042] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] This application proposes improvements and innovations, and presents the following embodiments.

[0047] In some implementations, please refer to Figures 1 to 9 A glue reservoir for dispensing glue in a molding machine is provided, comprising:

[0048] The glue storage tank 1 has an opening 11 at the top and a connecting port 12 at the bottom; a valve 13 is provided on the connecting port 12; and a pipe 17 is connected to the connecting port 12.

[0049] The cover 2 is placed on the opening 11 and the edge of the cover 2 and the opening 11 are detachably and sealed; the cover 2 is provided with a pressure regulating structure 3 for changing the internal liquid pressure of the glue storage tank 1; the cover 2 is provided with a through hole 21 for the drive end of the pressure regulating structure 3 to enter.

[0050] Support frame 4 is fixedly connected to the bottom of the glue storage tank 1.

[0051] Valve 13 is a three-way valve, and the connecting port 12 is connected to the outlet pipe and the inlet pipe through the three-way valve. The outlet pipe and the inlet pipe are separated by the three-way valve.

[0052] The glue storage tank 1 is mounted on a mobile cart for replenishing glue to the molding machine during movement. The mobile cart facilitates the movement of the glue storage tank 1.

[0053] A pressure regulating mechanism is installed on the glue storage tank 1 to adjust the liquid pressure inside the tank. When the pressure inside the tank is increased, the liquid inside the tank is discharged from the pipe 17, which is connected to the centerline glue cylinder of the piercing molding machine, thereby enabling glue replenishment to the molding machine. When the liquid pressure inside the tank is decreased, making the pressure inside the tank lower than the external pressure, liquid can flow into the tank from the connecting port 12, thus enabling glue addition to the tank.

[0054] The pressure regulating structure 3 and the tube body 17 work together to add glue to the molding machine, avoiding the need to manually fill the center line glue into the barrel and add it to the molding machine, making the glue addition work of the molding machine convenient and quick.

[0055] By setting a pressure regulating structure 3 to adjust the pressure inside the glue storage tank 1, the glue can be discharged or replenished. This avoids the need to connect a pump body to the connection port 12 of the glue storage tank 1. Moreover, since the pumping direction of the pump body cannot be changed, a pump body is required when adding glue to the glue storage tank 1, and another pump body is required when adding the centerline glue in the glue storage tank 1 to the molding machine. The pressure regulating structure 3 designed in this application can reduce the use of pump bodies and reduce production costs.

[0056] In one embodiment, the glue storage tank 1 is provided with a bag body 5; the bag body 5 has a closed space for storing glue; the bag body 5 has a connection port communicating with the connecting port 12; the connection port is connected to the closed space. Providing the bag body 5 can prevent the oxidation of the centerline glue from affecting the pressure regulating structure 3. Furthermore, sealing the centerline glue inside the bag body 5 reduces the contact between the centerline glue and air, reduces oxidation of the centerline glue, and extends the shelf life of the centerline glue.

[0057] In one embodiment, the pressure regulating structure 3 includes an air pipe 31; the air pipe 31 is connected to the through hole 21. The internal pressure of the glue storage tank 1 is regulated by connecting the air pipe 31 to the through hole 21. This regulating structure is ingeniously designed, simple in structure, practical and reliable.

[0058] Specifically, the trachet 31 is sealed to the through-hole 21. A three-way valve is installed on the trachet 31, with its other two ends connected to a high-pressure gas source and a negative pressure source, respectively. The high-pressure gas source is nitrogen or other inert gas. Introducing nitrogen reduces the oxidation of the adhesive and extends its shelf life.

[0059] The air pressure introduced through the air tube 31 exerts a uniform pressure on the bag body 5, avoiding excessive local stress on the bag body 5 and improving the service life of the bag body 5.

[0060] In one embodiment, the pressure regulating structure 3 includes a telescopic cylinder 32 and a pressure plate 6 located above the bag body 5; the telescopic cylinder 32 is fixedly connected to the cover body 2, and the telescopic part of the telescopic cylinder 32 passes through the through hole 21 and is fixedly connected to the pressure plate 6; the pressure plate 6 can reciprocate vertically within the glue storage tank 1. By pushing the pressure plate 6 downward through the telescopic cylinder 32 to squeeze the bag body 5, the centerline glue in the bag body 5 is compressed and flows out through the connecting port 12 into the tube body 17. The tube body 17 is then inserted into the centerline glue cylinder of the molding machine, thus realizing the glue addition action of the molding machine.

[0061] Specifically, the pressure plate 6 is sealed to the inner wall of the glue storage tank 1. When the pressure plate 6 moves, the pressure of the centerline glue at the bottom of the pressure plate 6 changes. When the pressure plate 6 moves downward, it can discharge the centerline glue in the bag body 5. When the pressure plate 6 moves upward, the pressure at the bottom of the pressure plate 6 is less than the atmospheric pressure, so the centerline glue will fill into the glue storage tank 1 through the pipe body 17, thus achieving glue addition to the glue storage tank 1. The pressure plate 6 and the telescopic cylinder 32 have a simple structure and are reliable in use.

[0062] Specifically, telescopic cylinder 32 is a hydraulic cylinder.

[0063] In one embodiment, the pressure plate 6 has a sliding hole 61; a first cylinder 62 is slidably connected to the sliding hole 61, and a second cylinder 63 is slidably connected inside the first cylinder 62; a plate 64 is slidably connected inside the second cylinder 63; the telescopic part of the telescopic cylinder 32 is fixedly connected to the top of the plate 64; and the bottom of the plate 64 is fixedly connected to the bag body 5. During the process of the telescopic cylinder 32 pushing the pressure plate 6 to move, the telescopic cylinder 32 pushes the plate 64 to move sequentially through the first cylinder 62 and the second cylinder 63, discharging the centerline adhesive located inside the first cylinder 62 and the second cylinder 63, thereby improving the centerline adhesive discharge rate of the bag body 5.

[0064] In one embodiment, the plate 64 has an exhaust hole that communicates with the enclosed space inside the bag 5, and an exhaust valve 65 is provided on the exhaust hole. The exhaust valve 65 facilitates the discharge of gas from the bag 5, thereby improving the capacity of the bag 5.

[0065] In one embodiment, the glue storage tank 1 is provided with multiple telescopic rods 7, which are spaced apart circumferentially along the bottom surface of the glue storage tank 1. One end of each telescopic rod 7 is fixedly connected to the bottom surface of the glue storage tank 1, and the other end is fixedly connected to the pressure plate 6. The telescopic rods 7 are located outside the bag body 5, and a fixing ring 71 is fixedly connected to the outer surface of the bag body 5. The fixing ring 71 is slidably sleeved on the telescopic rods 7. With the telescopic rods 7 provided and the outside of the bag body 5 connected to the telescopic rods 7 via the fixing ring 71, when the telescopic cylinder 32 moves upward, the top of the bag body 5 moves upward along with the plate 64. Due to the restriction of the fixing ring 71, the side of the bag body 5 can only move upward along the extension direction of the telescopic rods 7. Therefore, the volume of the bag body 5 increases, making the pressure inside the bag body 5 less than the atmospheric pressure. Thus, the centerline glue enters the inside of the bag body 5 through the tube 17. Although this structure is more complex than sealing the inner wall of the plate 64 and the glue storage tank 1, the processing precision and material requirements for sealing the inner wall of the plate 64 and the glue storage tank 1 are higher, and the processing cost and material cost are greater. By setting the fixing ring 71 and the telescopic rod 7, the processing cost and material cost are lower.

[0066] Specifically, each telescopic rod 7 is fitted with multiple fixing rings 71, which are spaced apart on the bag body 5.

[0067] In one embodiment, multiple grooves 14 are formed on the inner wall of the glue storage tank 1, and the grooves 14 are arranged circumferentially along the inner wall of the glue storage tank 1. Multiple sliders 15 are slidably engaged within each groove 14, and multiple ring plates 16 are fixedly connected to the outer surface of the bag body 5. Each slider 15 located at the same horizontal position is fixedly connected to the same ring plate 16. By replacing the telescopic rod 7 with the grooves 14, a larger volume can be provided for the expansion of the bag body 5. The ring plates 16 provide support for the bag body 5, resisting deformation of the bag body 5 under negative pressure, thus ensuring that the volume change of the bag body 5 is small when negative pressure is formed inside the bag body 5.

[0068] Specifically, when the telescopic cylinder 32 is retracted, the ring plates 16 are spaced apart from each other.

[0069] like Figures 5 to 9 As shown, due to the limitation of the slider 15 or the telescopic rod 7, the pressure plate 6 cannot move to the bottom of the glue storage tank 1. Therefore, a first cylinder 62 and a second cylinder 63 are provided on the pressure plate 6. The first cylinder 62 and the second cylinder 63 can extend into the bottom of the glue storage tank 1 as much as possible to discharge the centerline glue and improve the discharge rate of the centerline glue.

[0070] In one embodiment, a first retaining strip 18 is provided on the side of the telescopic storage tank 1 near the edge of the opening 11, and a second retaining strip 22 is provided on the lower edge of the cover 2. The upper surface of the second retaining strip 22 can abut against the lower surface of the first retaining strip 18; the edge of the opening 11 abuts against the lower surface of the cover 2 through a sealing ring 9. The first retaining strip 18 and the second retaining strip 22 enable a detachable connection between the opening 11 and the cover 2. The first retaining strip 18 and the second retaining strip 22 have a simple structure and are practical and reliable.

[0071] Specifically, the first locking strip 18 has an inclined section and a horizontal section, and the second locking strip 22 is provided with a roller; when the cover 2 is closed on the opening 11, the roller of the second locking strip 22 abuts against the lower end surface of the inclined section of the first locking strip 18. Rotating the cover 2 causes the roller to move down along the inclined section to the horizontal section. As the roller moves down, it drives the cover 2 to move down, thereby increasing the contact pressure between the cover 2 and the sealing ring 9, and improving the sealing effect of the sealing ring 9 on the cover 2 and the edge of the opening 11.

[0072] In one embodiment, the outer surface of the glue storage tank 1 is covered with an insulation layer 8, and a heating wire 81 and / or a water pipe 82 are provided inside the insulation layer 8. The heating wire 81 and the water pipe 82 can effectively control the temperature of the glue in the center of the glue storage tank 1.

[0073] Specifically, the heating wire 81 and water pipe 82 work together to maintain the temperature of the adhesive in the storage tank 1 between 5-25℃. This prevents high temperatures from accelerating the oxidation of the adhesive or low temperatures from causing solidification and stratification.

[0074] Specifically, a temperature sensor 83 is installed on the outer surface of the glue storage tank 1. A water pipe 82 is connected to an external cooling water source, and the water pipe 82 is spirally wound around the outer surface of the glue storage tank 1. The water temperature in the water pipe 82 can be adjusted as needed to ensure that the temperature of the glue in the center of the tank 1 is within a predetermined range.

[0075] Temperature sensor 83 is connected to a processor, which in turn is connected to a display. A pump and a water temperature sensor are installed on water pipe 82, and heating wire 81 is connected to a switch. The display, pump, temperature sensor 83, water temperature sensor, and switch are all electrically connected to the processor. Based on the temperature feedback from temperature sensor 83, the processor can automatically adjust the power of the pump in water pipe 82 and / or the on / off state of the switch. Heating wire 81 is wound along the winding direction of water pipe 82.

[0076] The above are merely optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this utility model.

Claims

1. A glue reservoir for dispensing glue in a molding machine, characterized in that, include: A glue storage tank, wherein the top of the glue storage tank has an opening and the bottom of the glue storage tank has a connecting port; a valve is provided on the connecting port; and a pipe is connected to the connecting port. A cover body is provided on the opening, and the cover body is detachably and sealingly connected to the edge of the opening; the cover body is provided with a pressure regulating structure for changing the internal liquid pressure of the glue storage tank; the cover body is provided with a through hole for the drive end of the pressure regulating structure to enter; The support frame is fixedly connected to the bottom of the glue storage tank. The pressure regulating structure includes an air pipe; the air pipe communicates with the through hole; a bag is provided inside the glue storage tank; the bag has a closed space for storing glue; the bag has a connection port communicating with the through hole; the connection port communicates with the closed space; the pressure regulating structure includes a telescopic cylinder and a pressure plate located above the bag; the telescopic cylinder is fixedly connected to the cover, and the telescopic part of the telescopic cylinder passes through the through hole and is fixedly connected to the pressure plate; the pressure plate can reciprocate vertically inside the glue storage tank.

2. The glue reservoir according to claim 1, characterized in that, The pressure plate has a sliding hole; a first cylinder is slidably connected to the sliding hole, and a second cylinder is slidably connected inside the first cylinder; a plate is slidably connected inside the second cylinder; the telescopic part of the telescopic cylinder is fixedly connected to the top of the plate; and the bottom of the plate is fixedly connected to the bag.

3. The glue reservoir according to claim 2, characterized in that, The plate has an exhaust hole that communicates with the closed space inside the bag, and an exhaust valve is provided on the exhaust hole.

4. The glue reservoir according to any one of claims 1-3, characterized in that, The storage tank is equipped with multiple telescopic rods, which are spaced apart circumferentially along the bottom surface of the storage tank. One end of each telescopic rod is fixedly connected to the bottom surface of the storage tank, and the other end is fixedly connected to the pressure plate. The telescopic rods are located outside the bag body, and a fixing ring is fixedly connected to the outer surface of the bag body. The fixing ring is slidably sleeved on the telescopic rods.

5. The glue reservoir according to any one of claims 1-3, characterized in that, Multiple grooves are formed on the inner wall of the glue storage tank, and the multiple grooves are arranged at intervals along the circumference of the inner wall of the glue storage tank; multiple sliders are slidably engaged in each groove, and multiple ring pieces are fixedly connected to the outer surface of the bag body; each slider located at the same horizontal position is fixedly connected to the same ring piece.

6. The glue reservoir according to claim 1, characterized in that, A first retaining strip is provided on the side of the telescopic storage tank near the edge of the opening, and a second retaining strip is provided on the lower edge of the cover. The upper end of the second retaining strip can abut against the lower end of the first retaining strip. The edge of the opening abuts against the lower end of the cover through a sealing ring.

7. The glue reservoir according to claim 1, characterized in that, The outer surface of the storage tank is covered with an insulation layer, and a heating wire and / or water pipe are installed inside the insulation layer.

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