Automatic spraying device for preventing hand strap from loosening

Abstract

The utility model discloses an automatic spraying device for preventing a hand strap from loosening, which comprises a supporting column, an anti-vibration pad is fixedly mounted at the lower end of the supporting column, a base is arranged at the upper end of the supporting column, and a transmission mechanism is arranged at the upper end of the supporting column. According to the automatic spraying device for preventing the hand strap from loosening, before glue spraying, one end of the hand strap is placed on the surface of the conveying crawler belt, then the air cylinder is started, the air cylinder tightly presses the pressing wheel on the upper surface of the hand strap, then the motor is started, and the hand strap is fed into a spraying area at a constant speed under the cooperation of the pressing wheel, the conveying crawler belt and the conveying shaft; in the conveying process of the hand strap, the adhesive is evenly sprayed to the upper surface of the hand strap through the spray head, so that the adhesive solidifies the thread residues of the hand strap, and the problem that the thread residues are loose in the moving process of the hand strap is solved, and if the position of the spray head is changed according to needs, a positioning nut at the upper end of a pipeline is loosened and adjusted to the needed position, the position of the spray head is changed. And then the positioning nut is screwed down.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic spraying, in particular to an automatic spraying device for preventing a handrail belt from loosening. Background Art

[0002] The sliding layer of the handrail is set for pedestrians and can play a supporting role. It can be used in sidewalks, escalators in corridors, etc. After the rubber handrail was molded, a quality problem of the surface appearance was found. In order to solve this problem, the process and raw materials were tested many times. Finally, a simple process method was used to solve the quality problem. Before this process was applied, the problem of loose sliding layer was solved by cutting with a utility knife after the handrail was molded. However, due to the high toughness of the exposed thread ends, the exposed length of the thread ends ranged from 0.5 to 2.5 mm, which made it difficult to cut and not easy to clean. At the same time, when the handrail was moving, the thread ends rubbed against the external physics, causing more loose thread ends.

[0003] The new process is to process the raw materials of the sliding layer and use an adhesive to fix the warp and weft lines at the edge. The principle is to let the adhesive infiltrate into the fabric, and then make the sliding layer fabric react chemically with other materials during the vulcanization process to fix the warp and weft lines. The sliding layer is a cord material woven by interlacing warp and weft lines. The warp and weft lines at the edge become loose due to loss of tension. When friction occurs, the looseness will become more serious. If there is no edge tension fixation, the looseness of the sliding layer edge will also worsen during the molding process as the rubber is vulcanized, eventually causing the loose thread ends to be exposed on the surface of the rubber handrail. Utility Model Content

[0004] The utility model aims to provide an automatic spraying device for preventing a handrail belt from loosening, so as to solve the problem of loose thread ends in the handrail belt processing process proposed in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: comprising: a support column, a shock-absorbing pad is fixedly installed at the lower end of the support column, and a base is provided at the upper end of the support column, characterized in that a glue spraying mechanism is provided above the base.

[0006] Preferably, the glue spraying mechanism comprises: a supporting frame 2 is fixedly mounted on the upper end surface of the base, a pipeline is provided at the lower end of the supporting frame 2, and a spray head is provided on the lower end surface of the pipeline.

[0007] By adopting the above technical solution, the adhesive is evenly sprayed on the surface of the handrail.

[0008] Preferably, a transmission mechanism is provided at the upper end of the support column, wherein the transmission mechanism includes: a transmission shaft is rotatably provided at the upper end of the support column, a conveying crawler is connected between the two transmission shafts, a conveying shaft is rotatably provided on the upper end surface of the base, a positioning wheel is provided on the upper end surface of the base, a support frame 1 is fixedly installed on one side of the base, a pressure wheel is provided at the lower end of the support frame 1, a motor is provided on one side of the pressure wheel, and a cylinder is fixedly installed on the upper end surface of the support frame 1.

[0009] By adopting the above technical solution, the transmission mechanism solves the problem of uniformly transporting the handrail to the glue spraying area.

[0010] Preferably, a blower mechanism is provided above the base, wherein the blower mechanism comprises: a support frame three is fixedly mounted on the upper end of the base, a blow port is provided at the lower end of the support frame three, and a flow limiting valve is fixedly mounted on the upper end surface of the blow port.

[0011] By adopting the above technical solution, the hair dryer structure solves the problem that the adhesive cannot be dried quickly at high temperature.

[0012] Preferably, the upper end surface of the second support frame is provided with an opening for the pipeline to move forward and backward, and the upper end surface of the pipeline is threadedly connected with a positioning nut.

[0013] By adopting the above technical solution, the distance between the nozzles can be adjusted as needed, thereby changing the spraying width.

[0014] Preferably, the lower surface of the conveying crawler is in contact with the upper end surface of the conveying shaft, and the side surface of the positioning wheel is in contact with the side surface of the conveying crawler. Openings are provided on both sides of the support frame for the pressure wheel to slide up and down. The transmission rod of the cylinder passes through the upper end surface of the support frame, and the lower end of the transmission rod of the cylinder is fixedly connected to the upper surfaces of the rotating shafts on both sides of the pressure wheel.

[0015] By adopting the above technical solution, the pressure wheel is pressed tightly against the upper surface of the handrail belt by using the cylinder, thereby providing power for the transportation of the handrail belt.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the automatic spraying device for preventing the handrail from loosening:

[0017] 1. The glue spraying mechanism solves the problem of evenly spraying adhesive on the surface of the handrail. Before spraying, connect the spray pipe to the pipeline. During the transmission of the handrail, the nozzle sprays the adhesive evenly on the upper surface of the handrail, so that the adhesive solidifies the thread ends of the handrail, avoiding the problem of loose thread ends during the movement of the handrail. If the position of the nozzle is changed as needed, loosen the positioning nut at the upper end of the pipeline, and when it is adjusted to the required position, tighten the positioning nut.

[0018] 2. The transmission mechanism solves the problem of transporting the handrail belt to the glue spraying area at a uniform speed. Before glue spraying, place one end of the handrail belt on the surface of the conveyor belt, and then start the cylinder. The cylinder presses the pressure wheel tightly on the upper surface of the handrail belt, and then starts the motor. The motor drives the pressure wheel to rotate. With the cooperation of the pressure wheel, conveyor belt and conveyor shaft, the handrail belt is sent to the spraying area at a uniform speed. The positioning wheel prevents the handrail belt from deviating during transportation.

[0019] 3. The air blowing mechanism solves the problem that the adhesive cannot be dried quickly under high temperatures in summer. When the ambient temperature is high, connect the air pump to the flow limiting valve, and then adjust the opening and closing degree of the flow limiting valve to control the flow rate of the gas blown out from the air outlet, ensuring the air drying effect while not blowing the adhesive away. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall top view structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0022] Figure 3 This is a side view structural diagram of the connection between the pressure wheel and the cylinder of the utility model;

[0023] Figure 4 This is a side view structural diagram of the connection between the pipeline and the nozzle of the utility model;

[0024] Figure 5 It is a side view structural schematic diagram of the connection between the air outlet and the flow limiting valve of the utility model.

[0025] In the figure: 1. Support column; 2. Shockproof pad; 3. Drive shaft; 4. Conveyor track; 5. Base; 6. Conveyor shaft; 7. Positioning wheel; 8. Support frame 1; 9. Pressure wheel; 10. Cylinder; 11. Motor; 12. Support frame 2; 13. Pipeline; 14. Nozzle; 15. Support frame 3; 16. Air outlet; 17. Flow limiting valve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 The utility model provides a technical solution: an automatic spraying device for preventing a handrail from loosening.

[0028] Embodiment 1:

[0029] This example discloses: a support column 1, a shock-absorbing pad 2 is fixedly installed on the lower end of the support column 1, a base 5 is provided on the upper end of the support column 1, a glue spraying mechanism is provided above the base 5, wherein the glue spraying mechanism comprises: a support frame 12 is fixedly installed on the upper end surface of the base 5, a pipeline 13 is provided at the lower end of the support frame 12, a nozzle 14 is provided on the lower end surface of the pipeline 13, an opening is provided on the upper end surface of the support frame 12 for the pipeline 13 to move forward and backward, and a positioning nut is threadedly connected to the upper end surface of the pipeline 13.

[0030] Before spraying, connect the spray pipe to the pipeline 13 provided at the lower end of the support frame 12. During the transmission of the handrail, the nozzle 14 will spray the adhesive evenly on the upper surface of the handrail. If the position of the nozzle 14 is changed as needed, loosen the positioning nut at the upper end of the pipeline 13, and tighten the positioning nut when it is adjusted to the required position.

[0031] Example 2

[0032] This embodiment is disclosed on the basis of embodiment 1: a transmission mechanism is provided at the upper end of the support column 1, wherein the transmission mechanism includes: a transmission shaft 3 is rotatably provided at the upper end of the support column 1, a conveying crawler 4 is connected between the two transmission shafts 3, a conveying shaft 6 is rotatably provided on the upper end surface of the base 5, a positioning wheel 7 is provided on the upper end surface of the base 5, a support frame 8 is fixedly installed on one side of the base 5, a pressure wheel 9 is provided at the lower end of the support frame 8, a motor 11 is provided on one side of the pressure wheel 9, a cylinder 10 is fixedly installed on the upper end surface of the support frame 8, the lower surface of the conveying crawler 4 is in contact with the upper end surface of the conveying crawler 4, one side surface of the positioning wheel 7 is in contact with one side surface of the conveying crawler 4, openings are provided on both sides of the support frame 8 for the pressure wheel 9 to slide up and down, a transmission rod of the cylinder 10 is arranged through the upper end surface of the support frame 8, and the lower end of the transmission rod of the cylinder 10 is fixedly connected to the upper surfaces of the rotating shafts on both sides of the pressure wheel 9.

[0033] Before spraying glue, place one end of the handrail belt on the surface of the conveyor belt 4, then start the cylinder 10 at the upper end of the support frame 8, the cylinder 10 will press the pressure wheel 9 tightly on the upper surface of the handrail belt, and then start the motor 11, the motor 11 drives the pressure wheel 9 to rotate, with the cooperation of the pressure wheel 9, the conveyor belt 4, the conveying shaft 6 and the transmission shaft 3, the handrail belt is sent into the spraying area at a uniform speed, the positioning wheel 7 provided on the base 5 prevents the handrail belt from shifting during transportation, and the shock-absorbing pad 2 at the lower end of the support column 1 ensures the stability of the device during operation.

[0034] Example 3

[0035] This embodiment discloses on the basis of Embodiment 1 and Embodiment 2: a blower mechanism is provided above the base 5, wherein the blower mechanism comprises: a support frame 3 15 is fixedly mounted on the upper end of the base 5, a blower outlet 16 is provided at the lower end of the support frame 3 15, and a flow limiting valve 17 is fixedly mounted on the upper end surface of the blower outlet 16.

[0036] When the ambient temperature is high, the air pump is connected to the flow limiting valve 17 provided on the support frame 3 15, and then the opening and closing degree of the flow limiting valve 17 is adjusted to control the flow rate of the gas blown out from the blowing port 16, so as to ensure the air-drying effect while not blowing the adhesive away.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic spraying device for preventing a handrail from loosening, comprising: A support column (1), wherein a shock-absorbing pad (2) is fixedly mounted on the lower end of the support column (1), and a base (5) is provided on the upper end of the support column (1), characterized in that a glue spraying mechanism is provided above the base (5); The glue spraying mechanism comprises: a second support frame (12) is fixedly mounted on the upper end surface of the base (5); a pipeline (13) is provided at the lower end of the second support frame (12); and a spray head (14) is provided on the lower end surface of the pipeline (13); The upper end of the support column (1) is provided with a transmission mechanism, wherein the transmission mechanism comprises: a transmission shaft (3) is rotatably provided at the upper end of the support column (1), a transmission crawler (4) is connected between two of the transmission shafts (3), a transmission shaft (6) is rotatably provided on the upper end surface of the base (5), a positioning wheel (7) is provided on the upper end surface of the base (5), a support frame 1 (8) is fixedly mounted on one side of the base (5), a pressure wheel (9) is provided at the lower end of the support frame 1 (8), a motor (11) is provided on one side of the pressure wheel (9), and a cylinder (10) is fixedly mounted on the upper end surface of the support frame 1 (8); The upper end surface of the second support frame (12) is provided with an opening for the pipeline (13) to move forward and backward, and the upper end surface of the pipeline (13) is threadedly connected with a positioning nut.

2. The automatic spraying device for preventing the handrail from loosening according to claim 1 is characterized in that: A blower mechanism is provided above the base (5), wherein the blower mechanism comprises: a support frame three (15) is fixedly mounted on the upper end of the base (5), a blower outlet (16) is provided at the lower end of the support frame three (15), and a flow limiting valve (17) is fixedly mounted on the upper end surface of the blower outlet (16).

3. The automatic spraying device for preventing the handrail from loosening according to claim 1 is characterized in that: The lower surface of the conveying crawler (4) is in contact with the upper surface of the conveying shaft (6), and the side surface of the positioning wheel (7) is in contact with the side surface of the conveying crawler (4). Openings are provided on both sides of the support frame (8) for the pressure wheel (9) to slide up and down. The transmission rod of the cylinder (10) is arranged to pass through the upper surface of the support frame (8), and the lower end of the transmission rod of the cylinder (10) is fixedly connected to the upper surfaces of the rotating shafts on both sides of the pressure wheel (9).

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