Automatic gluing machine
The pressure stabilizing component, which combines a storage cylinder and a booster cylinder, solves the downtime problem when changing glue tanks, achieves seamless glue supply, and improves production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN GUANGMEI MASCH TECH CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, machine downtime is required when changing glue buckets, which affects production efficiency.
The pressure stabilizing component, which combines a storage cylinder and a booster cylinder, stores the adhesive and balances the supply pressure by moving a piston rod, ensuring continuous adhesive supply without stopping the machine when changing the adhesive tank.
This allows for continuous glue supply without stopping the machine when changing glue drums, thus improving production efficiency.
Smart Images

Figure CN224167852U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass production technology, and in particular to an automatic glue applicator. Background Technology
[0002] Thermoplastic spacers (TPS) eliminate the use of heat-conducting metals like aluminum and stainless steel in traditional insulated glass. Insulated glass made with TPS has a significantly lower linear thermal conductivity than traditional products, effectively blocking heat loss from the glass edges and thus improving the overall energy efficiency of the window. TPS insulated glass has a lifespan 2-3 times longer than ordinary insulated glass and offers superior warm-edge performance. It provides a very low edge U-value, minimizing condensation at the edges. Due to its excellent performance, TPS insulated glass is used in passive house construction. TPS insulated glass features include: TPS thermoplastic spacers without metal embeddings; improved thermal barrier properties at the glass edges; a more even surface temperature distribution on both the inner and outer surfaces; effective reduction of condensation at the glass edges, inhibiting mold growth; flexible edge sealing; product diversity, making glass design more flexible and convenient; perfect compatibility with the glass assembly industry; high quality control; and a longer effective lifespan.
[0003] Existing technology, such as the automatic sealing production line for TPSS thermoplastic warm edge spacers disclosed in patent document application number CN202410476153.7, belongs to the field of insulated glass production. This automatic sealing production line for TPSS thermoplastic warm edge spacers includes a front conveying section, a sealing section, a rear conveying section, an edge trimming section, and a heating section arranged sequentially along the production direction. The first four sections each include a conveyor frame, with an air guide plate fixed at an angle on the front side of the conveyor frame. The air guide plate has multiple rows of air slits running through it from top to bottom. A supply air pipe is provided on the rear side of the air guide plate corresponding to the air slits, and the supply air pipe is connected to an air flotation fan. Below the air guide plates in the front, rear, and edge trimming sections, there are first conveying mechanisms that cooperate with them to transport glass. Below the air guide plate in the sealing section, there is a second conveying mechanism that cooperates with it to transport glass. This automatic sealing production line has advantages such as reducing glass adhesion and avoiding slippage during the sealing process, thus facilitating accurate sealing.
[0004] However, the above technical solutions still have some shortcomings. For example, using two glue buckets connected in series to supply glue can extend the glue supply time and reduce the number of downtimes, but the glue buckets directly connected to the glue applicator still need to be replaced after they are used up, which affects production efficiency. Utility Model Content
[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an automatic glue applicator that can continuously supply glue without stopping the machine when the glue tank needs to be replaced.
[0006] An automatic glue applicator according to a first aspect of the present invention includes a glue supply component, a pressure stabilizing component, and a glue dispensing component connected in sequence. The glue supply component includes a glue tank, a heating plate connected above the glue tank, and a glue pump connected to the heating plate. The heating plate has a glue discharge hole, which communicates with the glue inlet of the glue pump.
[0007] The pressure stabilizing assembly includes a storage cylinder body and a first booster cylinder. The top of the storage cylinder has a colloid outlet and a colloid inlet communicating with the colloid outlet of the glue pump. The cylinder body of the first booster cylinder is connected to the bottom of the storage cylinder. A first piston is sealed inside the storage cylinder body. A first connection port is opened at the bottom of the storage cylinder body. The bottom of the storage cylinder body is fixedly connected to the cylinder body of the first booster cylinder. One end of the piston rod of the first booster cylinder is fixedly connected to a second piston located inside the first booster cylinder and sealed. The other end of the piston rod of the first booster cylinder extends out of the first booster cylinder and extends into the storage cylinder body through the first connection port and is fixedly connected to the first piston.
[0008] The glue dispensing assembly includes a glue supply connector that is connected to the glue outlet via a connecting hose.
[0009] The automatic glue applicator according to the present invention has at least the following beneficial effects: by setting up a storage cylinder body in conjunction with a first pressure cylinder, it can store glue. When the supply pressure fluctuates, the piston rod of the first pressure cylinder moves to drive the first piston to move, thereby balancing the supply pressure and maintaining a dynamic balance of the supply pressure. When the glue tank needs to be replaced, the glue in the storage cylinder is sufficient to supply the glue tank after replacement and to provide new glue, so that the machine does not need to be stopped.
[0010] According to some embodiments of this utility model, the pressure stabilizing assembly further includes a cylinder body and a second booster cylinder. The glue supply connector is connected to the bottom of the second booster cylinder. A third piston is sealed inside the second booster cylinder. A second connection port is provided at the top of the second booster cylinder. One end of the piston rod of the second booster cylinder is fixedly connected to the third piston. The other end of the piston rod of the second booster cylinder extends out of the second booster cylinder through the second connection port. The cylinder body of the cylinder body is connected to the top of the second booster cylinder through a support rod. One end of the piston rod of the cylinder body is fixedly connected to a fourth piston sealed inside the cylinder body. The other end of the piston rod of the cylinder body is connected to the other end of the piston rod of the second booster cylinder through a connector.
[0011] According to some embodiments of the present invention, the projected area of the cylinder body on the horizontal plane is greater than the projected area of the second booster cylinder on the horizontal plane.
[0012] According to some embodiments of this utility model, heating devices are wound around the outer surfaces of both the storage cylinder body and the second booster cylinder.
[0013] According to some embodiments of this utility model, the heating device is wrapped with a heat insulation layer.
[0014] According to some embodiments of this utility model, a plurality of mounting holes are provided on the top surface of the heating plate along the central axis of the heating plate, and heating tubes are connected to the mounting holes one by one.
[0015] According to some embodiments of the present invention, the glue supply assembly further includes a base, a crossbeam, telescopic components, and a drive motor. The crossbeam is connected above the base. There are two telescopic components, each connected between the base and the crossbeam. The two telescopic components are respectively connected to both ends of the crossbeam. The glue bucket is disposed on the base between the two telescopic components.
[0016] The drive motor is fixedly connected to the crossbeam, and the output shaft of the drive motor is connected to the glue pump through a connecting rod.
[0017] According to some embodiments of the present invention, the bottom of the first booster cylinder is connected to the base.
[0018] According to some embodiments of this utility model, two reinforcing rods are also connected to the crossbeam, and the two reinforcing rods are symmetrically connected to the top of the heating plate about the central axis of the heating plate.
[0019] According to some embodiments of the present invention, the glue supply assembly further includes a fixing sleeve, which has three fixing holes, and the two reinforcing rods and the connecting rod are respectively fixedly inserted into the three fixing holes.
[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0022] Figure 1 This is one of the structural schematic diagrams of the automatic glue applicator according to an embodiment of the present utility model.
[0023] Figure 2 This is the second structural schematic diagram of the automatic glue applicator according to an embodiment of the present invention.
[0024] Figure 3This is a schematic diagram of the material storage cylinder and the first booster cylinder of the automatic glue applicator according to an embodiment of the present invention.
[0025] Figure 4 This is a schematic diagram of the cylinder body and the second booster cylinder of the automatic glue applicator according to an embodiment of the present invention.
[0026] Figure 5 This is one of the structural schematic diagrams of the glue supply component of the automatic glue applicator according to an embodiment of the present utility model.
[0027] Figure 6 This is the second schematic diagram of the adhesive supply assembly of the automatic adhesive applicator according to an embodiment of the present invention.
[0028] Figure 7 This is the third schematic diagram of the adhesive supply component of the automatic glue applicator according to an embodiment of the present invention.
[0029] Figure 8 This is a schematic diagram of the heating plate of the automatic glue applicator according to an embodiment of the present invention.
[0030] 1110. Base; 1120. Crossbeam; 1130. Telescopic component; 1140. Glue bucket; 1151. Fixed limiting sleeve; 1152. First movable limiting sleeve; 1153. Second movable limiting sleeve; 1154. Lock seat; 1155. Lock; 1200. Heating plate; 1210. Mounting slot; 1211. Glue discharge hole; 1220. Mounting hole; 1221. Heating element; 1310. Glue pump; 1320. Drive motor; 1330. Connecting rod; 1340. Reinforcing rod; 1350, fixing sleeve; 2110, storage cylinder body; 2111, colloid inlet; 2112, colloid outlet; 2113, first piston; 2120, first booster cylinder; 2130, first positioning sleeve; 2140, second positioning sleeve; 2150, connecting screw; 2210, cylinder body; 2220, second booster cylinder; 2230, support rod; 2240, connector; 2300, glue supply connector; 3100, connecting hose; 3200, glue supply connector. Detailed Implementation
[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0035] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 As shown, the automatic glue applicator according to an embodiment of the present utility model includes a glue supply component, a pressure stabilizing component and a glue dispensing component connected in sequence. The glue supply component includes a glue tank 1140, a heating plate 1200 connected above the glue tank 1140 and a glue pump 1310 connected to the heating plate 1200. The heating plate 1200 has a glue discharge hole 1211, which is connected to the glue inlet of the glue pump 1310.
[0036] The pressure stabilizing assembly includes a storage cylinder body 2110 and a first booster cylinder 2120. The top of the storage cylinder has a colloid outlet 2112 and a colloid inlet 2111 that communicates with the colloid outlet of the glue pump 1310. The cylinder body of the first booster cylinder 2120 is connected to the bottom of the storage cylinder. The inside of the storage cylinder body 2110 is sealed with a first piston 2113. The bottom of the storage cylinder body 2110 has a first connection port (not shown in the figure). The bottom of the storage cylinder body 2110 is fixedly connected to the cylinder body of the first booster cylinder 2120. One end of the piston rod of the first booster cylinder 2120 is fixedly connected to a second piston (not shown in the figure) that is sealed inside the first booster cylinder 2120. The other end of the piston rod (not shown in the figure) of the first booster cylinder 2120 extends out of the first booster cylinder 2120 and extends into the storage cylinder body 2110 through the first connection port and is fixedly connected to the first piston 2113.
[0037] The glue dispensing assembly includes a glue supply connector 3200 that is connected to a glue outlet 2112 via a connecting hose 3100.
[0038] In actual use, the storage cylinder body 2110 is used in conjunction with the first booster cylinder 2120 to store colloid. When the supply pressure fluctuates, the piston rod of the first booster cylinder 2120 moves to drive the first piston 2113 to balance the supply pressure and maintain dynamic balance. When the glue tank 1140 needs to be replaced, the colloid in the storage cylinder is sufficient to supply the glue tank 1140 to complete the replacement and provide new colloid, so that the machine does not need to be stopped.
[0039] It should be noted that other structures of the glue application assembly can use existing technical solutions, and are not limited here.
[0040] In some specific embodiments of this utility model, it may also have the following additional technical features: the top surface of the heating plate 1200 is provided with a mounting groove 1210 for connecting with the glue pump 1310, and the glue discharge hole 1211 is connected through the mounting groove 1210.
[0041] In some specific embodiments of this utility model, it may also have the following additional technical features: a plurality of mounting holes 1220 are provided on the top surface of the heating plate 1200 along the central axis of the heating plate 1200, and heating tubes 1221 are connected to the mounting holes 1220 one by one.
[0042] By connecting the drive motor 1320 to the crossbeam 1120, more space is provided on the heating plate 1200, allowing the heating element 1221 to be installed vertically, which facilitates subsequent disassembly and maintenance.
[0043] In some specific embodiments of this utility model, it may also have the following additional technical features: the pressure stabilizing assembly further includes a cylinder body 2210 and a second booster cylinder 2220, a glue supply connector 3200 is connected to the bottom of the second booster cylinder 2220, a third piston (not shown in the figure) is sealed inside the second booster cylinder 2220, a second connection port (not shown in the figure) is opened on the top of the second booster cylinder 2220, one end of the piston rod of the second booster cylinder 2220 is fixedly connected to the third piston, and the second booster cylinder 2220's... The other end of the piston rod (not shown in the figure) extends out of the second booster cylinder 2220 through the second connection port; the cylinder body of the cylinder body 2210 is connected to the top of the second booster cylinder 2220 through the support rod 2230; one end of the piston rod (not shown in the figure) of the cylinder body 2210 is fixedly connected to the fourth piston (not shown in the figure) located inside the cylinder body 2210 and sealed; the other end of the piston rod of the cylinder body 2210 is connected to the other end of the piston rod of the second booster cylinder 2220 through the connector 2240.
[0044] In some specific embodiments of this utility model, it may also have the following additional technical features: the projected area of the cylinder body 2210 on the horizontal plane is greater than the projected area of the second booster cylinder 2220 on the horizontal plane.
[0045] Specifically, the length direction of the cylinder body 2210 and the length direction of the second booster cylinder 2220 are both vertical. At this time, the difference in the projected area of the cylinder body 2210 and the second booster cylinder 2220 on the horizontal plane is used to boost the pressure of the second booster cylinder 2220.
[0046] In some specific embodiments of this utility model, it may also have the following additional technical features: a heating device (not shown in the figure) is wound around the outer surface of both the storage cylinder body 2110 and the second booster cylinder 2220. Specifically, the heating device can be a commonly used technical solution in the prior art, and is not limited here. By setting the heating device to transfer heat, the colloid in the storage cylinder body 2110 and the second booster cylinder 2220 is kept in a fluid state.
[0047] In some specific embodiments of this utility model, it may also have the following additional technical features: the heating device is wrapped with a heat insulation layer (not shown in the figure). Specifically, the heat insulation layer can be a commonly used technical solution in the prior art, and is not limited here. By setting the heat insulation layer, the heat leakage generated by the heating device can be reduced, thereby allowing most of the heat to be transferred to the storage cylinder body 2110 and the second pressure cylinder 2220, while also preventing burns caused by accidental contact.
[0048] In some specific embodiments of this utility model, it may also have the following additional technical features: the glue supply assembly further includes a base 1110, a crossbeam 1120, a telescopic member 1130 and a drive motor 1320. The crossbeam 1120 is connected above the base 1110. There are two telescopic members 1130, both of which are connected between the base 1110 and the crossbeam 1120. The two telescopic members 1130 are respectively connected to both ends of the crossbeam 1120. The glue bucket 1140 is disposed on the base 1110 between the two telescopic members 1130.
[0049] The drive motor 1320 is fixedly connected to the crossbeam 1120, and the output shaft of the drive motor 1320 is connected to the glue pump 1310 through the connecting rod 1330.
[0050] In some specific embodiments of this utility model, it may also have the following additional technical features: the bottom of the first booster cylinder 2120 is connected to the base 1110.
[0051] In some specific embodiments of this utility model, it may also have the following additional technical features: two reinforcing rods 1340 are also connected to the crossbeam 1120, and the two reinforcing rods 1340 are symmetrically connected to the top of the heating plate 1200 about the central axis of the heating plate 1200.
[0052] In some specific embodiments of this utility model, it may also have the following additional technical features: the glue supply assembly further includes a fixing sleeve 1350, the fixing sleeve 1350 is provided with three fixing holes, and the two reinforcing rods 1340 and the connecting rod 1330 are respectively fixedly inserted into the three fixing holes one by one.
[0053] By setting a fixed sleeve 1350 in conjunction with a reinforcing rod 1340, the connection strength of the connecting rod 1330 is increased, thereby reducing the risk of the connecting rod 1330 swinging due to its excessive length.
[0054] In some specific embodiments of this utility model, it may also have the following additional technical features: the glue supply assembly further includes a fixed limiting sleeve 1151, a first movable limiting sleeve 1152, and a second movable limiting sleeve 1153. The fixed limiting sleeve 1151 is semi-cylindrical, and its two ends are respectively fixedly connected to the cylinders of the two telescopic members 1130. The first movable limiting sleeve 1152 and the second movable limiting sleeve 1153 are respectively rotatably connected to the two ends of the fixed limiting sleeve 1151. The first movable limiting sleeve 1152 is detachably fixedly connected to the second movable limiting sleeve 1153 through a locking kit. The fixed limiting sleeve 1151, the first movable limiting sleeve 1152, and the second movable limiting sleeve 1153 enclose a placement position for accommodating the limiting glue bucket 1140.
[0055] Specifically, the locking kit includes a lock seat 1154 and a latch 1155. The lock seat 1154 is fixedly connected to the first movable limiting sleeve 1152, and the latch 1155 is fixedly connected to the second movable limiting sleeve 1153. In the initial state, the lock seat 1154 and the latch 1155 are not engaged. At this time, the first movable limiting sleeve 1152 and the second movable limiting sleeve 1153 are open to allow space for the glue bucket 1140 to enter the placement position. After the glue bucket 1140 is placed in the placement position, the first movable limiting sleeve 1152 and the second movable limiting sleeve 1153 are closed, and the latch 1155 is engaged with the lock seat 1154. At this time, the first movable limiting sleeve 1152, the second movable limiting sleeve 1153, and the fixed limiting sleeve 1151 form a cylindrical placement position to limit the glue bucket 1140 in the horizontal direction. When the glue in the glue bucket 1140 is used up and the glue bucket 1140 needs to be replaced, the latch 1155 is removed from the lock seat 1154, thereby opening the first movable limit sleeve 1152 and the second movable limit sleeve 1153 and making room for the glue bucket 1140 to enter and exit the placement position, and then the glue bucket 1140 replacement work is completed.
[0056] In some specific embodiments of this utility model, it may also have the following additional technical features: the telescopic member 1130 is a cylinder or a hydraulic cylinder.
[0057] Specifically, the telescopic component 1130 is a double-acting pneumatic cylinder or a double-acting hydraulic cylinder.
[0058] A double-acting pneumatic cylinder or a double-acting hydraulic cylinder can drive a rod to rise or fall by injecting media into different chambers.
[0059] It should be noted that the drive motor 1320, gear pump, heating element 1221, double-acting cylinder or double-acting hydraulic cylinder are all technical solutions commonly used by those skilled in the art. They can all be obtained by consulting reference books and purchasing them on the market according to actual needs. Their specific structure and principle will not be described in detail here.
[0060] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An automatic glue applicator, characterized in that, The device includes a glue supply assembly, a voltage stabilizing assembly, and a glue dispensing assembly connected in sequence. The glue supply assembly includes a glue tank (1140), a heating plate (1200) connected above the glue tank (1140), and a glue pump (1310) connected to the heating plate (1200). The heating plate (1200) has a glue discharge hole (1211), which is connected to the glue inlet of the glue pump (1310). The pressure stabilizing assembly includes a storage cylinder body (2110) and a first booster cylinder (2120). The top of the storage cylinder has a colloid outlet (2112) and a colloid inlet (2111) connected to the outlet of the glue pump (1310). The cylinder body of the first booster cylinder (2120) is connected to the bottom of the storage cylinder. A first piston (2113) is sealed inside the storage cylinder body (2110). A first connection port is provided at the bottom of the storage cylinder body (2110). The bottom of the storage cylinder body (2110) is fixedly connected to the cylinder body of the first booster cylinder (2120). One end of the piston rod of the first booster cylinder (2120) is fixedly connected to the second piston located inside the first booster cylinder (2120) in a sealed connection. The other end of the piston rod of the first booster cylinder (2120) extends out of the first booster cylinder (2120) and extends into the storage cylinder body (2110) through the first connection port and is fixedly connected to the first piston (2113). The glue application assembly includes a glue supply connector (3200) that is connected to the glue outlet (2112) via a connecting hose (3100).
2. The automatic glue applicator according to claim 1, characterized in that, The pressure stabilizing assembly also includes a cylinder body (2210) and a second booster cylinder (2220). The glue supply connector (3200) is connected to the bottom of the second booster cylinder (2220). A third piston is sealed inside the second booster cylinder (2220). A second connection port is provided on the top of the second booster cylinder (2220). One end of the piston rod of the second booster cylinder (2220) is fixedly connected to the third piston. The other end of the piston rod of the second booster cylinder (2220) is connected to the second piston via the second piston. The connection port extends out of the second booster cylinder (2220); the cylinder body of the cylinder body (2210) is connected to the top of the second booster cylinder (2220) via a support rod (2230); one end of the piston rod of the cylinder body (2210) is fixedly connected to a fourth piston located inside the cylinder body (2210) and sealed; the other end of the piston rod of the cylinder body (2210) is connected to the other end of the piston rod of the second booster cylinder (2220) via a connector (2240).
3. The automatic glue applicator according to claim 2, characterized in that, The projected area of the cylinder body (2210) on the horizontal plane is greater than the projected area of the second booster cylinder (2220) on the horizontal plane.
4. The automatic glue applicator according to claim 2, characterized in that, Heating devices are wrapped around the outer surfaces of both the storage cylinder body (2110) and the second booster cylinder (2220).
5. The automatic glue applicator according to claim 4, characterized in that, The heating device is wrapped with a heat insulation layer.
6. The automatic glue applicator according to claim 1, characterized in that, The heating plate (1200) has multiple mounting holes (1220) along its central axis on its top surface, and heating tubes (1221) are connected to each mounting hole (1220) in a corresponding manner.
7. The automatic glue applicator according to claim 1, characterized in that, The glue supply assembly also includes a base (1110), a crossbeam (1120), a telescopic component (1130), and a drive motor (1320). The crossbeam (1120) is connected above the base (1110). There are two telescopic components (1130) and they are both connected between the base (1110) and the crossbeam (1120). The two telescopic components (1130) are respectively connected to both ends of the crossbeam (1120). The glue bucket (1140) is disposed on the base (1110) between the two telescopic components (1130). The drive motor (1320) is fixedly connected to the crossbeam (1120), and the output shaft of the drive motor (1320) is connected to the glue pump (1310) through the connecting rod (1330).
8. The automatic glue applicator according to claim 7, characterized in that, The bottom of the first booster cylinder (2120) is connected to the base (1110).
9. The automatic glue applicator according to claim 7, characterized in that, Two reinforcing rods (1340) are also connected to the crossbeam (1120), and the two reinforcing rods (1340) are symmetrically connected to the top of the heating plate (1200) about the central axis of the heating plate (1200).
10. The automatic glue applicator according to claim 9, characterized in that, The adhesive supply assembly also includes a fixing sleeve (1350), which has three fixing holes. The two reinforcing rods (1340) and the connecting rod (1330) are respectively fixedly inserted into the three fixing holes.
Citation Information
Patent Citations
Automatic gluing production line for door and window hollow glass TPSS thermoplastic warm edge spacing bar
CN118253451A