Organic silicon sealant filling machine capable of preventing sealant overflow

Abstract

The utility model discloses an anti-overflow organosilicon sealant filling machine which is characterized in that an air cylinder is fixedly connected to a bracket, the air cylinder is connected with a pressure plate, and the pressure plate is fixedly connected with an anti-overflow device; the pressing disc is located in the packaging barrel and connected with the feeding hose, and a filling scale is arranged at the bottom of the packaging barrel. According to the utility model, on one hand, the square film with the round hole at the top is limited, so that the round hole is always positioned in the center of the glue outlet; on the other hand, due to the protruding effect of the glue overflowing prevention device, the glue body at the glue outlet is guided, and glue overflowing is effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealant filling, and in particular relates to an organic silicon sealant filling machine which prevents the sealant from overflowing. Background Art

[0002] Currently, silicone sealants for photovoltaic modules are packaged in 200L iron drums. Due to the extremely high viscosity and consistency of silicone sealants for photovoltaic modules, the sealant's own weight cannot level the surface during filling. Without flattening measures, a very steep, conical surface will form. Therefore, during the actual filling process, the filling machine is equipped with a pressure plate slightly smaller than the drum's inner diameter. This plate extends directly to the bottom of the drum. After the sealant is introduced, it is lifted up by the sealant to achieve a smooth surface.

[0003] In practice, it's been found that because silicone sealants used in photovoltaic modules have a very high curing activity, they easily form a film upon contact with moisture, leading to quality defects. Therefore, a 200L iron drum is typically filled with an aluminum-plastic composite bag. After filling, the top of the adhesive is tightly covered with a layer of aluminum-plastic composite film or PE film, which is then vacuum-sealed and sealed, and the drum lid is closed. To ensure a better bond between the top adhesive and the colloid and to expel air, the common practice is to split the film into two parts: a large square sheet with a circular hole inside and a smaller square sheet with a larger hole. During the filling process, the large square sheet with the circular hole is vacuum-attached to the filling machine's platen, with the hole centered at the center of the filler's adhesive port. Filling then begins. After filling is complete, the vacuum is released, the platen is lifted, and the smaller square sheet is placed over the hole in the large sheet, effectively expelling air.

[0004] Chinese patent CN112455745B discloses a filling mechanism, mobile filling machine, and filling device. This utilizes a tank filling pump as a filling power source to deliver material to a filling nozzle, enabling the nozzle to eject material even when the liquid level in the tank is higher than the liquid level. This makes it suitable for most material filling situations. The filling pump provides powerful hydraulic power, which is delivered to the filling nozzle, accelerating filling speed and improving filling efficiency. However, this method is only suitable for filling liquids with low viscosity and consistency.

[0005] Chinese patent CN103387201B discloses a one-component polyurethane sealant automatic filling system and method, including a glue pump, a glue filling hose, a pressure plate, a tray, and two hydraulic cylinders. By maintaining the sealant pressure within a certain range, it avoids sealant overflow and air mixing, thereby ensuring the quality of the filled sealant.

[0006] Currently, all filling machine pressure plates have flat bottoms. This structure has two disadvantages. First, it is difficult to align the center of the inner hole square film with the glue outlet. When installing the large square film, it is easy to install the large square film offset, resulting in blocking the glue outlet. Second, during filling, the colloid easily flows into the gap between the square film and the pressure plate around the center hole of the large square film, causing the square film to separate from the pressure plate and eventually mix into the product after filling. The above defects will eventually cause the colloid to overflow into the interface between the filling machine's pressure plate and the large square film, eventually causing the vacuum port to be blocked and unable to work. At the same time, it is very easy for the large square film to fall off in the middle of the colloid and cannot be removed, resulting in defective products. Summary of the Invention

[0007] In response to the above technical problems, the utility model provides an anti-overflow silicone sealant filling machine. On the one hand, it realizes the limiting effect on the square film with a circular hole on the top, so that the circular hole is always in the center of the glue outlet; on the other hand, due to the convex effect of the anti-overflow device, it also plays a diversion role for the colloid at the glue outlet, effectively preventing the occurrence of glue overflow.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a silicone sealant filling machine with anti-overflow glue, wherein a cylinder is fixedly connected to the bracket, the cylinder is connected to the pressure plate, and the pressure plate is fixedly connected to the anti-overflow glue device; the pressure plate is located inside the packaging barrel and connected to the feed hose, and a filling scale is provided at the bottom of the packaging barrel.

[0009] Preferably, the pressure plate is fixedly connected to the anti-glue overflow device via connecting bolts.

[0010] Further preferably, there are 4-8 connecting bolts, which are evenly distributed on the anti-glue overflow device.

[0011] Preferably, the anti-glue overflow device has a thickness of 3-5 mm, an inner diameter that is the same as the diameter of the feed hose, and an outer diameter that matches the size of the circular hole of the film covering the top of the colloid.

[0012] Preferably, one end of the feed hose is connected to the feed device via the feed port, and the other end is fixedly connected to the pressure plate via the discharge port.

[0013] Preferably, the cylinder is connected to a drive motor.

[0014] Preferably, the filling scale includes a filling scale base, a pressure sensor is provided on the filling scale base, and a filling scale bottom plate is provided on top of the pressure sensor; the filling scale base is fixedly connected to the display via a bracket.

[0015] Further preferably, a shock-absorbing spring is provided between the filling scale base and the filling scale bottom plate.

[0016] Further preferably, a locking plate is provided on the bottom plate of the filling scale.

[0017] The beneficial effects of the present invention are as follows: by fixing the anti-overflow glue device on the pressure plate, on the one hand, the large square sheet film with the inner opening can be limited, so that the inner opening of the large square sheet film is appropriately aligned with the center position of the discharge port, preventing the silicone sealant from entering between the packaging barrel and the aluminum-plastic composite film or PE film during the filling process, and at the same time, it can also prevent the large square sheet film from being mixed into the silicone sealant during the filling process; on the other hand, because the anti-overflow glue device protrudes from the pressure plate, it can guide the silicone sealant at the discharge port, preventing the sealant from overflowing into the gap between the filling machine's pressure plate and the top circular hole membrane, thereby avoiding the shutdown for cleaning and the production of defective products due to colloid overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a bottom view of the pressure plate and the anti-glue overflow device.

[0020] In the figure, 1 is the driving motor, 2 is the cylinder, 3 is the packaging barrel, 4 is the bracket, 5 is the feed hose, 6 is the material inlet, 7 is the material outlet, 8 is the filling scale, 9 is the filling scale base, 10 is the shock-absorbing spring, 11 is the filling scale bottom plate, 12 is the pressure sensor, 13 is the lock plate, 14 is the pressure plate, 15 is the anti-overflow glue device, 16 is the display, and 17 is the connecting bolt. DETAILED DESCRIPTION

[0021] The following further explains the technical solution of the present invention with reference to the accompanying drawings and specific embodiments. It is worth noting that the following embodiments are only preferred embodiments of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the claims. Any modifications or substitutions made to the technical solution of the present invention by those skilled in the art without creative effort shall fall within the scope of protection of the present invention.

[0022] Example 1

[0023] like Figure 1-2As shown, a silicone sealant filling machine for preventing glue from overflowing is shown. A cylinder 2 is fixedly connected to the bracket 4, and the cylinder 2 is connected to the pressure plate 14. The cylinder 2 drives the pressure plate 14 to move downward and upward, and the silicone sealant is evenly filled into the packaging barrel 3, reducing the gaps generated during filling and keeping the glue surface flat, maintaining a good filling effect, and avoiding a steep conical glue surface; the pressure plate 14 is fixedly connected to the anti-glue overflow device 15 to prevent the silicone sealant from overflowing into the gap between the pressure plate 14 and the large square film, thereby preventing the colloid from overflowing and clogging the feed hose 5, and can also limit the position of the large square film so that its inner opening is always aligned with the feed hose 5; the pressure plate 14 is located inside the packaging barrel 3 and is connected to the feed hose 5, and the silicone sealant is transported to the middle position of the packaging barrel 3 through the feed hose 5, and then smooth filling is achieved through the pressure plate 14. A filling scale 8 is provided at the bottom of the packaging barrel 3 for weighing the amount of filled silicone sealant.

[0024] Preferably, the pressure plate 14 and the anti-glue overflow device 15 are fixedly connected via connecting bolts 17 so that the anti-glue overflow device 15 is moderately fixed on the pressure plate 14 to avoid falling off during the filling process and thus failing to achieve the anti-glue overflow function.

[0025] Further preferably, there are 4 to 8 connecting bolts 17 , all of which are flat-head bolts and are evenly distributed on the anti-glue overflow device 15 .

[0026] Preferably, the anti-overflow glue device 15 has a thickness of 3-5 mm and an inner diameter that is the same as the diameter of the feed hose 5, which plays a diversion role when injecting silicone sealant; the outer diameter matches the circular hole size of the large square membrane covering the top of the colloid, and is used to limit the position of the large square membrane so that the inner opening of the large square membrane is always aligned with the feed hose 5 to ensure the filling effect.

[0027] Preferably, one end of the feed hose 5 is connected to the incoming device via the incoming port 6 , and the other end is fixedly connected to the pressure plate 14 via the outgoing port 7 , so as to inject the silicone sealant in the incoming device into the packaging barrel 3 .

[0028] Preferably, the cylinder 2 is connected to the driving motor 1 to provide power for the cylinder 2, thereby bringing a certain pressure to the pressure plate 14, so that the silicone sealant entering the packaging barrel 3 forms a plane under the action of pressure, so as to achieve a smooth final colloid surface.

[0029] Preferably, the filling scale 8 includes a filling scale base 9, a pressure sensor 12 is provided on the filling scale base 9, and a filling scale bottom plate 11 is provided on the top of the pressure sensor 12; the filling scale base 9 is fixedly connected to the display 16 via a bracket, which can realize accurate weighing of the filling weight.

[0030] Further preferably, a shock-absorbing spring 10 is provided between the filling scale base 9 and the filling scale bottom plate 11 .

[0031] Further preferably, a locking plate 13 is provided on the bottom plate 11 of the filling scale for fixing the packaging barrel 3 .

Claims

1. A silicone sealant filling machine that prevents overflow, characterized by: The support (4) is fixedly connected to a cylinder (2), the cylinder (2) is connected to a pressure plate (14), and the pressure plate (14) is fixedly connected to an anti-overflow glue device (15); the pressure plate (14) is located inside the packaging barrel (3) and is connected to a feed hose (5), and a filling scale (8) is provided at the bottom of the packaging barrel (3).

2. The anti-overflow silicone sealant filling machine according to claim 1, characterized in that: The pressure plate (14) is fixedly connected to the anti-glue overflow device (15) via connecting bolts (17).

3. The anti-overflow silicone sealant filling machine according to claim 2, characterized in that: There are 4 to 8 connecting bolts (17) evenly distributed on the anti-overflow glue device (15).

4. The anti-overflow silicone sealant filling machine according to any one of claims 1 to 3, characterized in that: The anti-glue overflow device (15) has a thickness of 3-5 mm, an inner diameter that is the same as the diameter of the feed hose (5), and an outer diameter that matches the size of the circular hole on the top of the colloid film.

5. The anti-overflow silicone sealant filling machine according to claim 1, characterized in that: One end of the feed hose (5) is connected to the feed device via the feed port (6), and the other end is fixedly connected to the pressure plate (14) via the discharge port (7).

6. The anti-overflow silicone sealant filling machine according to claim 1, characterized in that: The cylinder (2) is connected to the drive motor (1).

7. The anti-overflow silicone sealant filling machine according to claim 1, characterized in that: The filling scale (8) includes a filling scale base (9), a pressure sensor (12) is provided on the filling scale base (9), and a filling scale bottom plate (11) is provided on the top of the pressure sensor (12); the filling scale base (9) is fixedly connected to the display (16) via a bracket.

8. The anti-overflow silicone sealant filling machine according to claim 7, characterized in that: A shock-absorbing spring (10) is provided between the filling scale base (9) and the filling scale bottom plate (11).

9. The anti-overflow silicone sealant filling machine according to claim 7, characterized in that: A locking plate (13) is provided on the filling scale bottom plate (11).

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