Automatic quantitative uniform-speed powder adding device for EVA (Ethylene Vinyl Acetate) hot melt adhesive production

Abstract

The utility model discloses an automatic quantitative constant-speed powder adding device for EVA (Ethylene Vinyl Acetate) hot melt adhesive production, which mainly solves the technical problems of large dust lift, high labor intensity, difficulty in feeding and low efficiency caused by adding 25 KG packaged powder into a device containing viscous gas after heating in the production process in the prior art. The automatic quantitative constant-speed powder adding device for the EVA hot melt adhesive production comprises a raw material ton bag, a storage tank, a dust remover, a dust collector, a weighing sensor, a vibration device, a discharging machine, a pneumatic discharging valve and a kneading machine which are sequentially arranged, so that the automatic quantitative constant-speed powder adding device for the EVA hot melt adhesive production is effectively realized.

Description

Technical Field

[0001] The utility model belongs to the field of automatic quantitative and uniform speed powder adding, in particular to an automatic quantitative and uniform speed powder adding device for EVA hot melt adhesive production. Background Art

[0002] Adding 25KG of powder to a device that produces viscous gas after heating during the production process leads to large dust lift, high labor intensity, difficulty in adding materials, and low efficiency. Utility Model Content

[0003] The utility model aims to address the deficiencies of the prior art and provides an automatic quantitative and uniform powder adding device for producing EVA hot melt adhesive.

[0004] The purpose of the utility model is achieved through the following technical solutions: an automatic quantitative and uniform powder adding device for the production of EVA hot melt adhesive, including a raw material ton bag, a storage tank, a dust collector, a discharger, a pneumatic discharge valve and a kneader;

[0005] The raw material ton bag is hoisted by a crane, and a first discharge port is provided at the bottom of the raw material ton bag; a feeding port is provided at the upper end of the storage tank; the storage tank is connected to a dust collector; the storage tank is divided into a straight pipe portion and a tapered portion; a second discharge port is provided at the bottom of the tapered portion; the discharger is arranged at the lower end of the second discharge port; the pneumatic discharge valve is located below the discharger; and the kneader is located below the pneumatic discharge valve.

[0006] Furthermore, a dust absorption port is provided at the upper end of the storage tank; a dust suction port is provided at one side of the dust collector; and the dust absorption port is connected to the dust suction port through a dust recovery pipe.

[0007] Furthermore, the storage tank is located on the platform.

[0008] Furthermore, the dust collector is also provided with a dust collector.

[0009] Furthermore, four brackets are arranged on the side of the straight pipe portion, and each bracket is connected to a weighing sensor.

[0010] Furthermore, a vibration device is provided on the side surface of the conical portion.

[0011] The beneficial effects of the utility model are as follows: the utility model discharges ton bags of raw materials into storage tanks through the hoist and temporarily stores the raw materials, accurately measures and displays the actual amount of raw materials in the storage tank through the weighing control system, prevents the raw materials from accumulating on the inner wall and causing the inability to discharge the materials through the vibration device, discharges the powder in the storage tank at a uniform speed through the unloader, realizes quantitative discharge through the pneumatic discharge valve, and realizes an automatic quantitative and uniform speed powder adding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of an automatic quantitative and uniform powder adding device for the production of EVA hot melt adhesive;

[0013] In the figure, 1-raw material ton bag, 2-storage tank, 3-dust collector, 4-dust collector, 5-first discharge port, 6-weighing sensor, 7-vibration device, 8-discharger, 9-pneumatic discharge valve, 10-kneader, 11-second discharge port, 12-feeding port, 13-straight pipe part, 14-conical part, 15-dust absorption port, 16-dust suction port, 17-dust recovery pipeline. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, rather than all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the protection scope of the utility model.

[0015] The technical problem to be solved by the utility model is that in the prior art, after heating the production process, viscous gas will be generated in the device, and 25KG of packaged powder will be added to the device, resulting in large dust lift, high labor intensity, difficulty in adding materials, and low efficiency. An automatic quantitative and uniform powder adding device for the production of EVA hot melt adhesive is proposed. The device has the function of replacing 25KG raw materials with ton bags, accurately measuring the weight of the raw materials in the storage tank through a weighing control system, and automatically discharging and adding powder at a uniform speed through a discharger, a vibration device, and a pneumatic discharge valve, which greatly reduces labor intensity, reduces dust pollution, and solves the difficulty of adding materials.

[0016] like Figure 1 As shown, the utility model provides an automatic quantitative and uniform powder adding device for producing EVA hot melt adhesive, comprising a raw material ton bag 1, a storage tank 2, a dust collector 3, a discharger 8, a pneumatic discharge valve 9 and a kneader 10.

[0017] The raw material ton bag 1 is hoisted by a traveling hoist, and a first discharge port 5 is provided at the bottom of the raw material ton bag 1 to facilitate the discharge of the ton bag; a feeding port 12 is provided at the upper end of the storage tank 2; the storage tank 2 is connected to the dust collector 3; the storage tank 2 is divided into a straight pipe portion 13 and a tapered portion 14; a second discharge port 11 is provided at the bottom of the tapered portion 14; the discharger 8 is arranged at the lower end of the second discharge port 11, and is used to discharge the powder in the storage tank 2 at a uniform speed by controlling the rotation of the motor; the pneumatic discharge valve 9 is located below the discharger 8, and is used to realize quantitative discharge through the control of the weighing control system; the kneader 10 is located below the pneumatic discharge valve 9.

[0018] The upper end of the storage tank 2 is also provided with a dust absorption port 15 ; a dust suction port 16 is provided on one side of the dust collector 3 ; the dust absorption port 15 is connected to the dust suction port 16 through a dust recovery pipe 17 .

[0019] The storage tank 2 is located on the platform, which is convenient for feeding the raw material ton bags.

[0020] The dust collector 3 is also provided with a dust collector 4, and the dust collector 4 is used to reduce dust lift and dust pollution.

[0021] Four brackets are arranged on the side of the straight pipe portion 13 , and each bracket is connected to a weighing sensor 6 ; the weighing sensor 6 is used to accurately measure the weight of the raw materials in the storage tank 2 through a weighing control system.

[0022] A vibrating device 7 is disposed on the side of the conical portion 14; the vibrating device 7 is used to prevent the raw materials from accumulating on the inner wall and making it impossible to discharge the materials through vibration.

[0023] Working process: the raw material ton bag 1 is hoisted by the traveling hoist, and then moved to the top of the storage tank 2, the discharge port of the raw material ton bag 1 is aligned with the feeding port of the storage tank 2, and the raw material is discharged into the interior of the storage tank 2; after the raw material enters the interior of the storage tank 2, it first enters the straight pipe part 13 and then enters the tapered part 14; at this time, the vibration device 7 on the side of the tapered part 14 is working, so that the raw material inside the tapered part 14 is smoothly discharged to the second discharge port 11; the dust generated in the storage tank 2 is dedusted by the dust collector 3 connected to the dust absorption port 15, and finally collected on the dust collector 4, reducing the dust lift and dust pollution; the raw material powder inside the storage tank 2 is discharged at a uniform speed through the unloader 8 located below the second discharge port 11, and quantitative discharge is achieved through the pneumatic discharge valve.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An automatic quantitative and uniform powder adding device for the production of EVA hot melt adhesive, characterized in that: Including raw material ton bags, storage tanks, dust collectors, unloaders, pneumatic discharge valves and kneaders; The raw material ton bag is hoisted by a crane, and a first discharge port is provided at the bottom of the raw material ton bag; a feeding port is provided at the upper end of the storage tank; the storage tank is connected to a dust collector; the storage tank is divided into a straight pipe portion and a tapered portion; a second discharge port is provided at the bottom of the tapered portion; the discharger is arranged at the lower end of the second discharge port; the pneumatic discharge valve is located below the discharger; and the kneader is located below the pneumatic discharge valve.

2. According to claim 1, an automatic quantitative and uniform powder adding device for producing EVA hot melt adhesive, characterized in that: The upper end of the storage tank is also provided with a dust absorption port; one side of the dust collector is provided with a dust suction port; the dust absorption port is connected to the dust suction port through a dust recovery pipeline.

3. The automatic quantitative and uniform powder adding device for producing EVA hot melt adhesive according to claim 1, characterized in that: The storage tank is located on the platform.

4. The automatic quantitative and uniform powder adding device for producing EVA hot melt adhesive according to claim 1, characterized in that: The dust collector is also provided with a dust collector.

5. The automatic quantitative and uniform powder adding device for producing EVA hot melt adhesive according to claim 1, characterized in that: Four brackets are arranged on the side of the straight pipe part, and each bracket is connected to a weighing sensor.

6. The automatic quantitative and uniform powder adding device for producing EVA hot melt adhesive according to claim 1, characterized in that: A vibration device is arranged on the side surface of the tapered portion.

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