Gum dipping device for lifting liquid level in self-suction vacuum mode

Abstract

The invention discloses a glue dipping device for lifting a liquid level in a self-suction vacuum mode, which ensures the glue dipping quality of woven cloth under the condition of not increasing the land area and glue solution. The device comprises: a liquid storage tank, the cavity of which is filled with a glue solution, and the glue solution forms a first liquid level; the bottom of the pipe cover is open; a feeding roller; the at least three groups of guide rollers comprise a first guide roller, a second guide roller and a third guide roller; a discharge roller; and a vacuum pump; a bottom opening of the pipe cover covers below a first liquid level of the glue solution, a top plate of the pipe cover is arranged to be higher than the first liquid level, a gap is reserved between the bottom opening and a bottom plate of the liquid storage tank, a second guide roller is arranged at the middle upper part of the pipe cover, and a second guide roller is arranged at the lower part of the pipe cover. The feeding roller is arranged on the upper portion of a feeding port of the liquid storage tank, a first guide roller and a third guide roller are further arranged in the liquid storage tank, and the first guide roller and the third guide roller are located below the two sides, corresponding to the woven cloth conveying direction, of the second guide roller respectively.

Description

Technical Field

[0001] The invention relates to the technical field of woven fabric dipping, in particular to a dipping device for raising the liquid level by a self-absorption vacuum mode. Background Art

[0002] In the prior art, the woven cloth can be operated in subsequent workstations only after it has been treated with glue. However, the existing glue dipping operation of the woven cloth is to allow the woven cloth to enter a liquid storage tank with a certain depth through a feed roller, and then allow the woven cloth to pass through guide rollers that are staggered in the height direction in sequence along the length direction of the liquid storage tank one by one, and then discharge the cloth from the discharge roller at the end of the liquid storage tank. During this glue dipping process, uneven glue coating or pores on the surface of the woven cloth or between fibers often occur, and the existing glue dipping device can hardly eliminate these glue dipping defects, which leads to a relatively high defective rate of subsequent products.

[0003] In order to avoid the impregnation defects of woven cloth during the impregnation process, the existing technology generally achieves this by enlarging and lengthening the liquid storage tank, which not only increases the land area requirement, but also requires more glue to be placed in the liquid storage tank. In addition, there is an increased risk of bubble generation. Therefore, it is urgent to develop a dipping device that can ensure the quality of woven cloth impregnation without increasing the land area and glue. Summary of the invention

[0004] In view of the above problems, the present invention provides a dipping device that raises the liquid level by self-priming vacuum, which ensures the dipping quality of woven cloth without increasing the land area and glue liquid.

[0005] A glue dipping device for raising the liquid level by self-priming vacuum, characterized in that it comprises:

[0006] A liquid storage tank, wherein a glue liquid is arranged in a cavity thereof, and the glue liquid forms a first liquid surface;

[0007] A pipe cover, the bottom of which is open;

[0008] Feed roller;

[0009] At least three groups of guide rollers, including a first guide roller, a second guide roller, and a third guide roller;

[0010] Discharge roller;

[0011] and vacuum pumps;

[0012] The bottom opening of the tube cover is provided below the first liquid level of the glue solution, the top plate of the tube cover is provided above the first liquid level, and a gap is left between the bottom opening and the bottom plate of the liquid storage tank, a second guide roller is provided at the middle and upper part of the tube cover, the feed roller is provided at the upper part of the feed port of the liquid storage tank, a first guide roller and a third guide roller are further provided in the liquid storage tank, the first guide roller and the third guide roller are respectively provided at the lower positions on both sides of the second guide roller corresponding to the conveying direction of the woven cloth, the discharge roller is provided at the upper part of the discharge port of the liquid storage tank, the feed roller, the first guide roller, the second guide roller, the third guide roller and the discharge roller guide the woven cloth into the liquid storage tank and the tube cover for glue dipping;

[0013] The tube cover is connected to an external vacuum pump through a hole or pipeline above the second guide roller, and the vacuum pump is used to increase the height of the second liquid level of the glue in the tube cover.

[0014] It is further characterized by:

[0015] The height of the second liquid level in the pipe cover is monitored by a liquid level sensor. When the second liquid level reaches a set height, the vacuum pump stops the vacuuming operation. The height of the second liquid level can be set according to demand.

[0016] The first guide roller and the third guide roller are arranged at the relative bottom positions of the liquid storage tank to ensure that the dipping cycle of the woven fabric is extended as much as possible;

[0017] The width of the pipe cover is greater than the maximum width of the woven cloth set to pass through, which ensures the versatility of the entire structure;

[0018] A liquid delivery pump is connected to one side of the pipe cover, the input end of the liquid delivery pump is connected to below the first liquid level of the liquid storage tank, and the output end of the liquid delivery pump delivers the glue into the pipe cover;

[0019] The bottom inlet area of ​​the pipe cover is also provided with a baffle plate assembly, which, after being assembled, forms an ascending channel slit and a descending channel slit for passing the woven cloth, thereby ensuring reliable passage of the woven cloth;

[0020] The partition assembly comprises a front partition, a middle partition and a rear partition, the ascending channel slit is formed between the front partition and the middle partition, and the descending channel slit is formed between the middle partition and the rear partition;

[0021] Preferably, the front partition, the middle partition, and the rear partition are arranged at intervals on the same horizontal plane;

[0022] Preferably, the front partition is a guide plate from top to bottom, the middle partition is a horizontal plate, the rear partition is a guide plate from bottom to top, and the middle partition is horizontally arranged between the bottom ends of the front partition and the rear partition;

[0023] The outer wall of the pipe cover and the liquid storage tank is provided with a heating mechanism, and the heating mechanism heats the glue liquid, and the heating temperature is automatically controlled by a temperature controller to ensure that the temperature of the glue liquid in the dipping process is at a reasonable dipping temperature;

[0024] A stirring blade is arranged in the height area of ​​the pipe cover corresponding to below the second liquid level and higher than the first liquid level. The stirring blade is externally connected to an external drive motor, which is fixed outside the pipe cover. The output shaft of the external drive motor passes through the pipe cover and is connected to the central axis of the stirring blade, and the connection position is reliably sealed. The stirring blade is used to better mix the glue liquid;

[0025] When the bottom of the liquid storage tank is non-planar, it includes a shallow glue area and a deep glue area. At least a portion of the tube cover corresponds to the position of the deep glue area. The bottom of at least one of the ascending route or descending route of the woven cloth passing through the second guide roller is arranged through the deep glue area. At least one of the first guide roller and the third guide roller is arranged near the bottom of the deep glue area, which extends the glue dipping cycle of the woven cloth as much as possible.

[0026] After adopting the structure of the present invention, a tube cover is covered on the first liquid level of the original liquid storage tank, and the inner cavity of the tube cover is evacuated by a vacuum pump to make the liquid surface pressure of the tube cover less than the atmospheric pressure. The gas brought into the glue along with the woven fabric can be pumped up in this tube cover by the vacuum pump, and the effect of uniform natural exhaust can be achieved. At the same time, the second liquid level rises to the highest liquid level under the vacuum effect, and the vacuum pump is stopped after being sensed by the liquid level meter. It ensures the quality of the woven cloth impregnation without increasing the land area and glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0028] Figure 2 It is a structural schematic diagram of a specific embodiment 2 of the present invention;

[0029] Figure 3 It is a structural schematic diagram of a specific embodiment 3 of the present invention;

[0030] Figure 4 It is a structural schematic diagram of a fourth specific embodiment of the present invention;

[0031] The names corresponding to the serial numbers in the figure are as follows:

[0032] Liquid storage tank 10, feeding shallow glue area 101, discharging deep glue area 102, pipe cover 20, top plate 21, exhaust pipe 22, second liquid level 23, feeding roller 30, discharging roller 40, vacuum pump 50, glue solution 60, first liquid level 61, first guide roller 70, second guide roller 80, third guide roller 90, woven cloth 100, heating mechanism 110, stirring blade 120, external drive motor 130, liquid feeding pump 140, baffle plate assembly 150, front partition plate 151, middle partition plate 152, rear partition plate 153, ascending channel slit 160, descending channel slit 170. DETAILED DESCRIPTION

[0033] A dipping device that raises the liquid level by self-priming vacuum, see Figure 1-Figure 4 , which includes a liquid storage tank 10, a pipe cover 20, an inlet roller 30, three sets of guide rollers, an outlet roller 40, and a vacuum pump 50;

[0034] The cavity of the liquid storage tank 10 is provided with glue liquid 60, and the glue liquid forms a first liquid surface 61;

[0035] The bottom of the pipe cover 20 is open;

[0036] The three groups of guide rollers are respectively a first guide roller 70, a second guide roller 80, and a third guide roller 90;

[0037] The bottom opening of the tube cover 20 is provided below the first liquid level 61 of the glue solution 60, the top plate 21 of the tube cover 20 is provided above the first liquid level 61, and a gap is left between the bottom opening and the bottom plate of the liquid storage tank 10, a second guide roller 80 is provided at the middle and upper part of the tube cover 20, a feed roller 30 is provided at the upper part of the feed port of the liquid storage tank 10, a first guide roller 70 and a third guide roller 90 are further provided in the liquid storage tank 10, the first guide roller 70 and the third guide roller 90 are respectively provided at the lower positions on both sides of the second guide roller 80 corresponding to the conveying direction of the woven cloth 100, a discharge roller 40 is provided at the upper part of the discharge port of the liquid storage tank 10, the feed roller 30, the first guide roller 70, the second guide roller 80, the third guide roller 90, and the discharge roller 40 guide the woven cloth 100 into the liquid storage tank 10 and the tube cover 20 for dipping;

[0038] The tube cover 20 is connected to an external vacuum pump 50 through a hole or a pipeline above the second guide roller 80 . The vacuum pump 50 is used to increase the height of the second liquid level 23 of the glue solution in the tube cover 20 .

[0039] For reliable arrangement, the top plate 21 of the pipe cover 20 is provided with an exhaust pipe 22 connected to a vacuum pump 50, and the vacuum pump 50 is connected to an external purification device and then discharged into the atmosphere (to ensure environmental protection).

[0040] The height of the second liquid level 23 in the pipe cover 20 is monitored by a liquid level sensor. When the second liquid level 23 reaches a set height, the vacuum pump 50 stops the vacuuming operation. The height of the second liquid level 23 can be set according to demand.

[0041] The first guide roller 70 and the third guide roller 90 are arranged at the relative bottom positions of the liquid storage tank 10 to ensure that the dipping cycle of the woven cloth 100 is extended as much as possible;

[0042] The width of the pipe cover 20 is larger than the maximum width of the woven cloth 100 set to pass through, which ensures the versatility of the entire structure.

[0043] Specific embodiment 1, see Figure 1 A heating mechanism 110 is added to the outer wall of the pipe cover 20 and the liquid storage tank 10. The heating mechanism 110 heats the glue solution, and the heating temperature is automatically controlled by a temperature controller to ensure that the temperature of the glue solution in the dipping process is at a reasonable dipping temperature;

[0044] A stirring blade 120 is provided in the height area of ​​the tube cover 20 corresponding to below the second liquid level 23 and higher than the first liquid level 61. The stirring blade 120 is externally connected to an external drive motor 130. The external drive motor 130 is fixed outside the tube cover 20. The output shaft of the external drive motor 130 passes through the tube cover 20 and is connected to the central axis of the stirring blade 120. The connection position is reliably sealed. The stirring blade 120 is used to better mix the glue.

[0045] Specific embodiment 2, see Figure 2 , Specific embodiment three, see Figure 3 : A liquid delivery pump 140 is connected to one side of the tube cover, the input end of the liquid delivery pump 140 is connected to below the first liquid level 61 of the liquid storage tank 10, and the output end of the liquid delivery pump 140 delivers the glue into the tube cover 20;

[0046] In order to shorten the time for the liquid level in the vacuum tube cover 20 to rise, a baffle plate assembly 150 is further provided at the bottom inlet area of ​​the tube cover 20. After being assembled, the baffle plate assembly 150 forms an ascending channel slit 160 and a descending channel slit 170 for passing the woven cloth, which ensures the reliable passage of the woven cloth 100.

[0047] The partition assembly 150 includes a front partition 151 , a middle partition 152 , and a rear partition 153 . An ascending channel slit 160 is formed between the front partition 151 and the middle partition 152 , and a descending channel slit 170 is formed between the middle partition 152 and the rear partition 153 .

[0048] Specific embodiment 2, see Figure 2 The front partition 151, the middle partition 152, and the rear partition 153 are arranged at intervals on the same horizontal plane.

[0049] Specific embodiment three, see Figure 3The front partition 151 is a guide plate from top to bottom, the middle partition 152 is a horizontal plate, the rear partition 153 is a guide plate from bottom to top, and the middle partition 152 is horizontally arranged between the bottom ends of the front partition 151 and the rear partition 153.

[0050] Specific embodiment 4, see Figure 4 When the bottom of the liquid storage tank 10 is non-planar, it includes a shallow glue area 101 for feeding and a deep glue area 102 for discharging. At least a portion of the tube cover 20 corresponds to the position of the deep glue area 102 for discharging. The bottom of the descending route of the woven cloth passing through the second guide roller 80 is arranged through the deep glue area 102 for discharging. At least one third guide roller is arranged near the bottom position of the deep glue area 102 for discharging. The diameter of the third guide roller 90 is larger than that of the first guide roller 70 and the second guide roller 80, so that the dipping cycle of the woven cloth 100 is extended as much as possible.

[0051] Its working principle is as follows: a tube cover is placed on the first liquid level of the original liquid storage tank, and the inner cavity of the tube cover is evacuated by a vacuum pump to make the liquid surface pressure of the tube cover lower than the atmospheric pressure. The gas brought into the glue along with the woven fabric can be pumped up in this tube cover by the vacuum pump, thereby achieving a uniform natural exhaust effect. At the same time, the second liquid level rises to the highest liquid level under the vacuum effect, and the vacuum pump is stopped after being sensed by the liquid level meter. This ensures the quality of the woven cloth impregnation without increasing the land area and glue.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dipping device for raising the liquid level by self-priming vacuum, characterized in that: It includes: A liquid storage tank, wherein a glue liquid is arranged in a cavity thereof, and the glue liquid forms a first liquid surface; A pipe cover, the bottom of which is open; Feed roller; At least three groups of guide rollers, including a first guide roller, a second guide roller, and a third guide roller; Discharge roller; and vacuum pumps; The bottom opening of the tube cover is provided below the first liquid level of the glue solution, the top plate of the tube cover is provided above the first liquid level, and a gap is left between the bottom opening and the bottom plate of the liquid storage tank, a second guide roller is provided at the middle and upper part of the tube cover, the feed roller is provided at the upper part of the feed port of the liquid storage tank, a first guide roller and a third guide roller are further provided in the liquid storage tank, the first guide roller and the third guide roller are respectively provided at the lower positions on both sides of the second guide roller corresponding to the conveying direction of the woven cloth, the discharge roller is provided at the upper part of the discharge port of the liquid storage tank, the feed roller, the first guide roller, the second guide roller, the third guide roller and the discharge roller guide the woven cloth into the liquid storage tank and the tube cover for glue dipping; The tube cover is connected to an external vacuum pump through a hole or pipeline above the second guide roller, and the vacuum pump is used to increase the height of the second liquid level of the glue in the tube cover.

2. The device for dipping glue for raising the liquid level by self-priming vacuum according to claim 1, characterized in that: The height of the second liquid level in the tube cover is monitored by a liquid level sensor. After the second liquid level reaches a set height, the vacuum pump stops the vacuuming operation. The height of the second liquid level is set according to demand.

3. The device for dipping glue for raising the liquid level by self-priming vacuum according to claim 1, characterized in that: The first guide roller and the third guide roller are arranged at relatively bottom positions of the liquid storage tank.

4. The device for dipping glue for raising the liquid level by self-priming vacuum according to claim 1, characterized in that: A liquid delivery pump is connected to one side of the tube cover, the input end of the liquid delivery pump is connected to below the first liquid level of the liquid storage tank, and the output end of the liquid delivery pump delivers the glue into the tube cover.

5. The device for dipping glue for raising the liquid level by self-priming vacuum according to claim 4, characterized in that: The bottom inlet area of ​​the pipe cover is also provided with a baffle plate assembly, and the baffle plate assembly is assembled to form an ascending channel slit and a descending channel slit for passing the woven cloth.

6. The device for dipping glue for raising the liquid level by self-priming vacuum according to claim 5, characterized in that: The partition assembly comprises a front partition, a middle partition and a rear partition. The ascending channel slit is formed between the front partition and the middle partition, and the descending channel slit is formed between the middle partition and the rear partition.

7. The device for dipping glue for raising the liquid level by self-priming vacuum according to claim 1, characterized in that: A heating mechanism is additionally provided on the outer wall of the pipe cover and the liquid storage tank, and the heating mechanism heats the glue liquid. The heating temperature is automatically controlled by a temperature controller to ensure that the temperature of the glue liquid in the glue dipping process is at a reasonable glue dipping temperature.

8. The device for dipping glue for raising the liquid level by self-priming vacuum according to claim 1, characterized in that: A stirring blade is arranged in the height area of ​​the tube cover corresponding to below the second liquid level and higher than the first liquid level. The stirring blade is connected to an external drive motor. The external drive motor is fixed outside the tube cover. The output shaft of the external drive motor passes through the tube cover and is connected to the central axis of the stirring blade. The connection position is reliably sealed. The stirring blade is used to better mix the glue.

9. The device for dipping glue for raising the liquid level by self-priming vacuum according to claim 1, characterized in that: The width of the pipe cover is greater than the maximum width of the woven cloth set to pass through.

10. The device for dipping glue for raising the liquid level by self-absorption vacuum according to claim 1, characterized in that: When the bottom of the liquid storage tank is non-planar, it includes a shallow glue area and a deep glue area. At least a portion of the tube cover corresponds to the position of the deep glue area. The bottom of at least one of the ascending route or descending route of the woven cloth passing through the second guide roller is arranged through the deep glue area. At least one of the first guide roller and the third guide roller is arranged near the bottom of the deep glue area, which extends the glue dipping cycle of the woven cloth as much as possible.

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