Glue supply device of glue dispenser
By designing a dispensing machine glue supply device that can be heated and has the functions of quick replacement and glue deficiency detection, the problem of inability to meet the heating and replacement requirements of the glue barrel at high temperatures in the prior art is solved, and efficient and space-saving Glue supply system.
Patent Information
- Application Number
- CN202420766223.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing glue dispenser supply system cannot meet the needs of heating the glue barrel at high temperatures above 80℃, quickly changing the glue and glue shortage alarms, especially when space is limited.
A glue supply device for a dispensing machine is designed, including a fixing assembly, a barrel seat and a driving assembly. The barrel seat is movably connected to the fixed assembly, has a heating function, and can quickly replace and detect glue-free by the hinge and locking part.
It realizes effective heating of the glue barrel at high temperature and quickly replaces the glue, and has a glue-lost alarm function. It is suitable for 330ml glue barrels, with small space and clever design.
Smart Images

Figure CN222469601U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fuel cells, and in particular relates to a glue supply device of a glue dispensing machine. Background Art
[0002] A hydrogen fuel cell is a device that directly converts chemical energy stored in fuel and oxidant into electrical energy through electrochemical means. A hydrogen fuel cell includes multiple battery cells, multiple battery cells and sealing elements. The end plates on both sides are stacked and pressed to form a stack and encapsulated in a stack packaging structure.
[0003] The electrolyzer is the reverse reaction process of the fuel cell. With the participation of catalysts, electrical energy is converted into chemical energy, and water is electrolyzed into hydrogen and oxygen. The basic structure of the electrolyzer is also a plurality of anode and cathode plates, membrane electrodes and sealing elements, and the end plates on both sides are stacked and pressed together.
[0004] A single battery cell is packaged from a cathode plate, an MEA membrane electrode, and an anode plate. Whether it is the traditional bipolar plate plus MEA membrane electrode technology or the emerging single-cell technology, the bonding and sealing problems of the cathode plate, MEA membrane electrode, and anode must be solved, and dispensing technology must be used.
[0005] The dispensing of hydrogen fuel cells and electrolyzers operates at temperatures above 80°C, which generally places stringent requirements on the glue supply system. It must be able to alarm for lack of glue, be heated, and be easy to replace glue. The glue supply barrel is generally a standard 330ml large barrel.
[0006] Existing glue dispensing machines, including those in the 3C industry, hydrogen fuel cell and electrolyzer industries, do not have glue supply systems that meet the above requirements. The main reasons are:
[0007] The glue barrel is a large 330mml glue barrel. The glue supply system that meets the above requirements is relatively complex and occupies a large space. However, the space of the glue dispenser is limited, which makes it difficult.
[0008] The glue barrel needs to have heating function (above 80℃) and convenient glue replacement (quick clamping and anti-scalding design), which is quite difficult.
[0009] The glue barrel is in a state of high temperature (above 80°C) and high pressure (above 0.5Mpa), and it is also required to have a glue shortage alarm. The sensor is prone to failure and is also relatively difficult. Utility Model Content
[0010] In order to solve the above problems in the prior art, the utility model provides a glue supply device for a glue dispensing machine, which is convenient for heating and replacing glue barrels.
[0011] In order to achieve the above-mentioned purpose, the utility model provides a glue supply device for a glue dispensing machine, which mainly comprises a fixed component, a glue barrel seat and a driving component, the fixed component comprises a heating plate, the glue barrel seat is used to accommodate the glue barrel, the heating plate is used to heat the glue barrel in the glue barrel seat, the driving component is used to provide a thrust for the glue barrel to discharge glue, the glue barrel seat is movably connected to the fixed component, so that the glue barrel seat rotates around the hinge part so that the glue barrel seat is tilted and has an opening and closing angle relative to the fixed component to replace the glue barrel in the glue barrel seat.
[0012] Preferably, the hinged portion is hinged to the heating plate, the locking portion is connected to the fixed assembly, and the locking portion has a locked state and an unlocked state. In the locked state, the locking portion is locked with the fixed assembly, so that the glue barrel seat is fixed on the fixed assembly and the glue barrel seat is in contact with the heating plate, so as to heat the glue barrel in the glue barrel seat through the heating plate, and in the locked state, the driving assembly is located on the top of the glue barrel seat to apply thrust to the piston of the glue barrel; in the unlocked state, the glue barrel seat rotates around the hinged portion so that the glue barrel seat is tilted and has an opening and closing angle relative to the fixed assembly, so as to replace the glue barrel in the glue barrel seat.
[0013] Preferably, the fixing assembly includes a mounting seat and a base plate, the mounting seat is arranged on the upper part of the base plate, the heating plate is arranged on the base plate, the driving assembly includes a cylinder, the cylinder is provided with a solenoid valve, a cylinder push rod and a push block, the solenoid valve is used to control the cylinder, the cylinder is provided with a cylinder push rod and a push block, the push block is located at the end of the cylinder push rod, the cylinder is installed on the mounting seat, and in the locked state, the cylinder is located on the top of the rubber barrel seat, so that the cylinder push rod pushes the push block to apply thrust to the piston of the rubber barrel.
[0014] Preferably, the length direction of the base plate extends in the vertical direction, the mounting seat is fixed to the side of the base plate, the plane where the heating plate is located is arranged parallel to the plane where the base plate is located, and in the locked state, the central axis of the glue barrel seat is parallel to the central axis of the base plate, and the glue barrel seat is located directly below the cylinder push block, so that the cylinder push rod moves the push block in the vertical direction to push the piston of the glue barrel vertically downward along the central axis of the glue barrel.
[0015] Preferably, a plurality of first heat-insulating pads are arranged between the heating plate and the bottom plate;
[0016] Preferably, the cylinder is provided with a glue shortage magnetic ring sensor, and the glue shortage magnetic ring sensor detects the glue quantity in the glue barrel by detecting the extension length of the cylinder push rod;
[0017] Preferably, the glue shortage magnetic ring sensor is connected to an alarm, and the alarm is configured to alarm when the glue shortage magnetic ring sensor detects that the glue barrel is short of glue;
[0018] Preferably, reinforcing ribs are respectively provided on the upper and lower parts of the bottom plate.
[0019] Preferably, the fixing assembly is provided with a mounting hole, the mounting hole has a side opening, the locking portion includes a locking rod and a locking nut, the upper portion of the locking rod is provided with a threaded section, the lower portion of the locking rod is hinged to the rubber barrel seat, the locking nut is provided on the threaded section of the locking rod, and the upper portion of the locking rod can movably pass through the side opening and be locked in the mounting hole through the locking nut.
[0020] Preferably, the hinged portion is located at the bottom of the first side of the glue bucket seat, and the hinged portion is hinged to the bottom of the heating plate; the locking portion is located at the upper portion of the second side of the glue bucket seat.
[0021] Preferably, the second side of the glue barrel seat is opposite to the first side of the glue barrel seat.
[0022] Preferably, a limit assembly is arranged between the first side of the glue barrel seat and the heating plate, and the limit assembly includes a guide protrusion and a limit groove matching the guide protrusion, the guide protrusion is arranged on the first side of the glue barrel seat and one of the heating plates, and the limit groove is arranged on the first side of the glue barrel seat and the other of the heating plates.
[0023] Preferably, the heating plate is provided with a heating rod and a first temperature sensor; the glue barrel seat is provided with a second temperature sensor;
[0024] Preferably, the opening and closing angle is 25-90°.
[0025] Preferably, a U-shaped heat-insulating protective cover is disposed outside the glue barrel seat, and the U-shaped heat-insulating protective cover exposes a side of the glue barrel seat that contacts the heating plate, that is, a first side of the glue barrel seat;
[0026] Preferably, a plurality of second heat insulation pads are arranged between the U-shaped heat insulation protection cover and the rubber barrel seat.
[0027] The beneficial effect of the glue supply device of the glue dispensing machine of the utility model is that it is particularly suitable for all fields where the glue dispensing machine uses a 330ml glue barrel. The heating part is fixed and the glue barrel seat part is movable. The design structure is ingenious. It can heat and replace glue, and the heating cable will not have the risk of movement damage and occupies little space. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a structural schematic diagram of the glue supply device of the glue dispensing machine of the utility model when it is in an open state.
[0029] Figure 2 It is a structural schematic diagram of the glue supply device of the glue dispensing machine of the utility model when it is in a closed state.
[0030] Figure 3 It is a three-dimensional diagram of a fixed component in the glue supply device of the glue dispensing machine of the present utility model.
[0031] Figure 4 It is a front view of a fixed component in the glue supply device of the glue dispensing machine of the utility model.
[0032] Figure 5 It is a side view of a fixing component in the glue supply device of the glue dispensing machine of the utility model.
[0033] Figure 6 It is a structural schematic diagram of the cylinder in the glue supply device of the glue dispensing machine of the utility model.
[0034] Figure 7 It is a side view of a glue barrel seat in a glue supply device of a glue dispensing machine of the utility model.
[0035] Figure 8 It is a three-dimensional diagram of the glue barrel seat in the glue supply device of the glue dispensing machine of the present utility model.
[0036] Fig. 9 The utility model is a structural schematic diagram of a glue barrel in a glue supply device of a glue dispensing machine. DETAILED DESCRIPTION
[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments.
[0038] like Figures 1 to 9 As shown, a specific embodiment of the glue supply device of the glue dispensing machine of the utility model is particularly suitable for glue dispensing machines in the field of hydrogen fuel cells and electrolyzers, especially suitable for 330ml large glue barrels in the field of hydrogen fuel cells. It is also suitable for glue dispensing machines in other fields and suitable for all glue dispensing machines that use 330ml large glue barrels. Of course, the glue supply system of the utility model is also suitable for glue barrels of other capacities, not limited to 330ml glue barrels.
[0039] Among them, the glue supply system includes a fixing component 1, a glue barrel seat 2 and a driving component, the fixing component 1 includes a heating plate 3, the glue barrel seat 2 is used to accommodate the glue barrel 4, the driving component is used to provide thrust for the glue barrel 4 to discharge glue, the glue barrel seat 2 has a hinge part and a locking part 5, the hinge part is hinged to the heating plate 3, the locking part 5 is connected to the fixing component 1, and the locking part 5 has a locked state and an unlocked state.
[0040] In such Figure 2 In the locked state shown in FIG. 1 , the locking portion 5 is locked with the fixing assembly 1, so that the glue barrel seat 2 is fixed on the fixing assembly 1 and the glue barrel seat 2 is in contact with the heating plate 3, so that the glue barrel 4 in the glue barrel seat 2 is heated by the heating plate 3, and in the state shown in FIG. Figure 2 In the locked state shown in FIG. 1 , the driving assembly is located at the top of the glue barrel seat 2 to move the piston 28 (such as Fig. 9 Apply thrust as shown).
[0041] In such Figure 1 In the unlocked state shown, the glue bucket seat 2 rotates around the hinge portion so that the glue bucket seat 2 is tilted and has an opening and closing angle relative to the fixing assembly 1, so as to replace the glue bucket 4 in the glue bucket seat 2. The opening and closing angle is 25 to 90 degrees, and the opening and closing angle can be adjusted according to space and other conditions, and there is no limit on the opening and closing angle.
[0042] like Figure 3 As shown, the fixing assembly 1 includes a mounting seat 9 and a base plate 14 . The mounting seat 9 is arranged on the upper part of the base plate 14 , and the heating plate 3 is arranged on the base plate 14 .
[0043] like Figure 3 and Figure 6 As shown, the driving assembly includes a cylinder 6, and the cylinder 6 is provided with a solenoid valve 7, a cylinder push rod 20 and a push block 21. The solenoid valve 7 is used to control the cylinder 6, and the push block 21 is located at the end of the cylinder push rod 20. For a large 330ml glue barrel, an embodiment of the cylinder is provided. For example, the cylinder actuator has a diameter of 50mm and a stroke of 200mm. Due to the difference in glue viscosity and the type of packaging materials, the required thrust and glue amount vary to a certain extent. The cylinder diameter is preferably 25-50mm, and the stroke is 175-200mm. There is no restriction on the diameter and stroke of the cylinder. As Figure 3 As shown, a pneumatic connector 8 is provided on the solenoid valve 7, and a pneumatic speed regulating connector 19 is provided on the cylinder.
[0044] like Figure 3 As shown, the cylinder 6 is mounted on the mounting seat 9, and in Figure 2 In the locked state shown, the cylinder 6 is located at the top of the glue barrel seat 2, so that the cylinder push rod 20 pushes the push block 21 to apply thrust to the piston 28 at the top of the glue barrel 4.
[0045] The bottom plate 14 may be a rectangular plate with a certain thickness, having a length direction, a width direction and a thickness direction, wherein the length direction or the central axis of the bottom plate 14 extends in the vertical direction, that is, the bottom plate 14 is arranged in the vertical direction. Figure 5 As shown, the mounting seat 9 is fixed to the side of the bottom plate 14, and the plane where the heating plate 3 is located is arranged parallel to the plane where the bottom plate 14 is located. Figure 2 In the locked state shown in FIG. 1 , the central axis of the glue bucket seat 2 is parallel to the central axis of the bottom plate 14, that is, the glue bucket seat 2 is also extended in the vertical direction. Figure 2 In the locked state shown, the glue barrel seat 2 is located directly below the cylinder push block 21, so that the cylinder push rod 20 moves the push block 21 in the vertical direction to push the piston 28 of the glue barrel 4 to move vertically downward along the central axis of the glue barrel 4. The cylinder push rod 20 drives the push block 21 to move vertically from top to bottom, so as to squeeze out the glue in the glue barrel 4 through the piston 28 at the top of the glue barrel 4, and the squeezed glue is discharged from the glue outlet 29 at the bottom of the glue barrel 4. The glue outlet 29 is also provided with a transfer interface 30.
[0046] like Figure 5 As shown, a pair of first heat insulation pads 18 are arranged between the heating plate 3 and the bottom plate 14 to prevent heat from being transferred to the bottom plate, which is beneficial to reducing heat loss;
[0047] like Figure 5 As shown, reinforcing ribs 15 are respectively provided on the upper and lower parts of the bottom plate.
[0048] like Figure 3 and Figure 4 As shown, the cylinder 6 is provided with a glue shortage magnetic ring sensor 10 , and the glue shortage magnetic ring sensor 10 detects the glue amount in the glue barrel 4 by detecting the extension length of the cylinder push rod 20 .
[0049] The glue shortage magnetic ring sensor 10 is connected to an alarm, and the alarm is configured to alarm when the glue shortage magnetic ring sensor detects that the glue barrel is short of glue. When the glue in the glue barrel is used up, the cylinder push rod 20 extends the full stroke, and the magnetic ring sensor senses a signal, prompting to change glue.
[0050] like Figure 8As shown, the hinged portion 24 is located at the bottom of the first side of the glue bucket seat 2, and the hinged portion 24 is hinged to the bottom of the heating plate 3; the locking portion 5 is located at the upper part of the second side of the glue bucket seat 2. In this embodiment, the hinged portion 24 is in the form of a hinge hinge member and is hingedly matched with the hinge shaft 17 of the heating plate 3.
[0051] like Figure 3 As shown, the fixing assembly 1 is provided with a mounting hole 12, and the mounting hole 12 has a side opening. In this embodiment, the mounting hole 12 is provided in the extension block 11, and the extension block 11 is fixed on the mounting seat 9. Figure 7 and Figure 8 As shown, the locking portion 5 includes a locking rod 22 and a locking nut 21. The upper portion of the locking rod 22 is provided with a threaded section, and the lower portion of the locking rod 22 is hinged to the second side of the glue barrel seat 2. In this embodiment, the lower portion of the locking rod 22 is hinged to the glue barrel seat 21 through a rotating shaft 27. The locking nut 21 is provided on the threaded section of the locking rod 22, and the upper portion of the locking rod 22 can movably pass through the side opening and be locked in the mounting hole 12 through the locking nut 21. In this embodiment, the locking nut 21 is provided as a butterfly nut for easy operation.
[0052] like Figure 8 As shown, the second side of the glue barrel seat 2 is opposite to the first side of the glue barrel seat 2 .
[0053] like Figure 4 and Figure 8 As shown, a limiting component is arranged between the first side of the glue bucket seat 2 and the heating plate 3, and the limiting component includes a guide protrusion and a limiting groove 13 matching the guide protrusion. In this embodiment, the guide protrusion is arranged on the first side of the glue bucket seat 2, and the limiting groove 13 is arranged on the heating plate 3. The guide protrusion can also be arranged on the heating plate 3, and the limiting groove 13 can be arranged on the first side of the glue bucket seat 2.
[0054] like Figure 3 and Figure 4 As shown, the heating plate 3 is provided with a heating rod 14 and a first temperature sensor 16; Figure 8 As shown, the glue barrel seat 2 is provided with a second temperature sensor 26. In this embodiment, temperature sensors are provided at two locations, or one of them may be provided selectively.
[0055] like Figure 7 and Figure 8As shown, a U-shaped heat insulation protective cover 23 is arranged outside the glue bucket seat 2, and several second heat insulation pads 25 are arranged between the U-shaped heat insulation protective cover 23 and the glue bucket seat 2. The U-shaped heat insulation protective cover 12 exposes the first side of the glue bucket seat 2, and the first side of the glue bucket seat 2 is not covered by the U-shaped heat insulation protective cover. The first side is in direct contact with the heating plate 3 and is heated. The arrangement of the second heat insulation pads 25 can be: 3 at each end of the left and right, 4 at each end of the upper and lower ends, and a total of 14. The U-shaped heat insulation protective cover 23 will be separated from the glue bucket seat 2 by these 14 heat insulation pads, and the two ends of the U-shaped heat insulation protective cover 23 will not be directly heated, and the heat insulation is all-round. The heat insulation pad delays the transfer of heat, and the U-shaped heat insulation protective cover 23 has a large heat dissipation area, and the U-shaped heat insulation protective cover 23 can maintain a relatively low temperature. The U-shaped heat insulation protective cover 23 can be made of stainless steel mirror material.
[0056] The specific operation method of the glue supply system of the utility model when changing glue is as follows:
[0057] ① Operate the solenoid valve to retract the cylinder push rod;
[0058] ② Loosen the butterfly nut, rotate the locking rod, and rotate the rubber barrel seat to a certain angle to open it;
[0059] ③Take out the empty plastic bucket and put in a new one;
[0060] ④ Rotate the rubber barrel seat back to its original position;
[0061] ⑤Rotate the locking rod back to its original position and tighten the butterfly nut;
[0062] ⑥ Connect the glue outlet to the glue valve with a rubber hose to complete the glue changing operation.
[0063] When the glue in the glue barrel is used up, the cylinder push rod extends to the full stroke, and the magnetic ring sensor senses the signal, prompting you to change the glue.
[0064] The specific operation method of the glue supply system of the utility model during gluing is as follows:
[0065] Operate the solenoid valve to extend the cylinder push rod and press the rubber barrel piston.
[0066] Based on the above configuration, the beneficial effects of the glue supply device of the glue dispensing machine of the utility model are:
[0067] Especially suitable for all areas where 330ml glue barrels are used in glue dispensing machines;
[0068] The heating part is fixed, and the glue barrel seat is movable. The design structure is ingenious, which can be used for heating and changing glue, and the heating cable will not be damaged by movement.
[0069] The glue barrel seat can be tilted relative to the fixed component, which can achieve quick clamping and anti-scalding design at high temperatures;
[0070] Realize glue shortage detection under high temperature and high pressure;
[0071] A heat insulation pad can be placed between the heating plate and the base plate to prevent heat from being transferred to the base plate, which is beneficial to heat loss;
[0072] A U-shaped heat-insulating protective cover is set outside the rubber barrel seat and separated by a heat-insulating pad, which makes it easier for manual operation to change the rubber directly;
[0073] It takes up little space and has beautiful design.
[0074] In this specification, the utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the utility model. Therefore, the description and drawings should be regarded as illustrative rather than restrictive.
Claims
1. A glue supply device for a glue dispensing machine, characterized in that: The invention comprises a fixing component, a glue barrel seat and a driving component, wherein the fixing component comprises a heating plate, the glue barrel seat is used for accommodating a glue barrel, the heating plate is used for heating the glue barrel in the glue barrel seat, the driving component is used for providing a thrust for the glue barrel to discharge glue, the glue barrel seat is movably connected to the fixing component, the glue barrel seat has a hinge part and a locking part, the hinge part is hinged to the heating plate, the locking part is connected to the fixing component, the locking part has a locking state and an unlocking state, in the locking state, the locking part is locked with the fixing component, so that the glue barrel seat is fixed on the fixing component and the glue barrel seat is in contact with the heating plate, so that the glue barrel in the glue barrel seat is heated by the heating plate, and in the locking state, the driving component is located at the top of the glue barrel seat to apply a thrust to the piston of the glue barrel; in the unlocking state, the glue barrel seat rotates around the hinge part so that the glue barrel seat is tilted and has an opening and closing angle relative to the fixing component, so as to replace the glue barrel in the glue barrel seat.
2. The glue supply device of the glue dispensing machine according to claim 1, characterized in that: The fixing assembly includes a mounting seat and a base plate, the mounting seat is arranged on the upper part of the base plate, the heating plate is arranged on the base plate, the driving assembly includes a cylinder, the cylinder is provided with a solenoid valve, a cylinder push rod and a push block, the solenoid valve is used to control the cylinder, the push block is located at the end of the cylinder push rod, the cylinder is installed on the mounting seat, and in the locked state, the cylinder is located on the top of the rubber barrel seat, so that the cylinder push rod pushes the push block to apply thrust to the piston of the rubber barrel.
3. The glue supply device of the glue dispensing machine according to claim 2, characterized in that: The length direction of the base plate extends in the vertical direction, the mounting seat is fixed to the side of the base plate, the plane where the heating plate is located is arranged parallel to the plane where the base plate is located, and in the locked state, the central axis of the glue barrel seat is parallel to the central axis of the base plate, and the glue barrel seat is located directly below the cylinder push block, so that the cylinder push rod moves the push block in the vertical direction to push the piston of the glue barrel to move vertically downward along the central axis of the glue barrel.
4. The glue supply device of the glue dispensing machine according to claim 2, characterized in that: A plurality of first heat-insulating pads are arranged between the heating plate and the bottom plate; The cylinder is provided with a glue shortage magnetic ring sensor, and the glue shortage magnetic ring sensor detects the glue quantity in the glue barrel by detecting the extension length of the cylinder push rod; The glue shortage magnetic ring sensor is connected to an alarm device, and the alarm device is configured to alarm when the glue shortage magnetic ring sensor detects that the glue barrel is short of glue; The upper part and the lower part of the bottom plate are respectively provided with reinforcing ribs.
5. The glue supply device of the glue dispensing machine according to claim 1, characterized in that: The fixing assembly is provided with a mounting hole, and the mounting hole has a side opening. The locking part includes a locking rod and a locking nut. The upper part of the locking rod is provided with a threaded section, and the lower part of the locking rod is hinged to the glue barrel seat. The locking nut is arranged on the threaded section of the locking rod. The upper part of the locking rod can movably pass through the side opening and be locked in the mounting hole through the locking nut.
6. The glue supply device of the glue dispensing machine according to claim 5, characterized in that: The hinged portion is located at the bottom of the first side of the glue barrel seat, and the hinged portion is hinged to the bottom of the heating plate; the locking portion is located at the upper portion of the second side of the glue barrel seat.
7. The glue supply device of the glue dispensing machine according to claim 6, characterized in that: The second side of the glue barrel seat is opposite to the first side of the glue barrel seat.
8. The glue supply device of the glue dispensing machine according to claim 5, characterized in that: A limiting assembly is arranged between the glue barrel seat and the heating plate, and the limiting assembly includes a guide protrusion and a limiting groove matching the guide protrusion. The guide protrusion is arranged on one of the glue barrel seat and the heating plate, and the limiting groove is arranged on the other of the glue barrel seat and the heating plate.
9. The glue supply device of the glue dispensing machine according to claim 1, characterized in that: The heating plate is provided with a heating rod and a first temperature sensor; the glue barrel seat is provided with a second temperature sensor; The opening and closing angle is 25 to 90 degrees; A U-shaped heat-insulating protective cover is arranged outside the glue barrel seat, and the U-shaped heat-insulating protective cover exposes a side of the glue barrel seat that contacts the heating plate; A plurality of second heat insulation pads are arranged between the U-shaped heat insulation protection cover and the rubber barrel seat.
Citation Information
Cited By
Glue supply system for glue dispenser
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