Automatic fluid feeding device

Abstract

The utility model discloses an automatic fluid feeding device which comprises a cylinder body, the upper end and the lower end of the cylinder body are connected with an upper end cover and a lower end cover respectively, a first air cylinder which is inversely arranged downwards is arranged above the upper end cover, the end of a piston rod at the lower end of the first air cylinder is connected with a pull rod extending into the cylinder body, and a glue scraping ring is arranged at the lower end of the pull rod. An end cover connecting block is arranged below the lower end cover, the end cover connecting block is connected with a glue inlet pipeline, a first runner which is transversely arranged and communicated with the cylinder body is arranged in the upper end cover, the first runner penetrates out of the upper end cover to form a glue outlet, a second runner which is transversely arranged and communicated with the cylinder body is arranged on the lower end cover, and a return pipe is arranged between the upper end cover and the lower end cover. The two ends of the backflow pipe communicate with the first flow channel and the second flow channel correspondingly, and the end cover connecting block is provided with a longitudinally-arranged third flow channel. The automatic fluid feeding device has the advantages of being ingenious in structural design, small in structure and suitable for high-precision quantitative conveying of adhesive liquid such as viscous coating and glue.

Description

Technical Field

[0001] The utility model relates to the technical field of adhesive liquid transportation, in particular to a fluid automatic feeding device. Background Technique

[0002] An adhesive liquid is a substance with good adhesion performance, which connects objects together by adhesion and cohesion. A class of organic or inorganic, natural or synthetic substances that connect the same or two or more homogeneous or heterogeneous parts (or materials) together and have sufficient strength after curing are collectively called adhesives or bonding agents, adhesives, and are habitually abbreviated as glue. During the use of adhesive liquid, the transportation of adhesive liquid is involved. Existing transportation systems all have problems such as large volume, complex structure, and inconvenient operation, resulting in their inability to be widely used. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fluid automatic feeding device that meets the compatibility requirements of various adhesive liquids, so as to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A fluid automatic feeding device includes a cylinder body. The upper and lower ends of the cylinder body are respectively connected with an upper end cover and a lower end cover. Above the upper end cover, there is a first cylinder arranged upside down. The lower end piston rod end of the first cylinder is connected with a pull rod extending into the cylinder body. A scraping rubber ring is arranged at the lower end of the pull rod. Below the lower end cover, there is an end cover connection block. The end cover connection block is connected with a glue inlet pipe. Inside the upper end cover, there is a horizontally arranged first flow channel communicating with the cylinder body. The first flow channel penetrates through the upper end cover to form a glue outlet. The lower end cover is provided with a horizontally arranged second flow channel communicating with the cylinder body. A return pipe is arranged between the upper end cover and the lower end cover. The two ends of the return pipe are respectively communicated with the first flow channel and the second flow channel. The end cover connection block is provided with a vertically arranged third flow channel. The upper end of the third flow channel is connected to the cylinder body and the second flow channel at the same place. The lower end of the third flow channel is communicated with the glue inlet pipe.

[0005] Further preferably, a second cylinder is arranged on the side of the lower end cover. The second cylinder is horizontally arranged. The piston rod end of the second cylinder is connected with a first sealing ejector rod. The first sealing ejector rod is inserted into the second flow channel. The second cylinder can drive the first sealing ejector rod to make telescopic movements to realize the blocking or release of the second flow channel.

[0006] Further preferably, a second sealing ejector rod is provided at the end of the first sealing ejector rod away from the second cylinder. The second sealing ejector rod is inserted into the second flow channel and passes through the connection of the cylinder body, the second flow channel, and the third flow channel. The second sealing ejector rod is used to seal the end of the second flow channel and can relieve the flow rate of the adhesive liquid in the second flow channel to ensure the smooth flow of the adhesive liquid.

[0007] Further preferably, a third cylinder is provided on the side of the end cover connecting block. The third cylinder is horizontally arranged, and the piston rod end of the third cylinder is connected with a third sealing ejector rod. The third sealing ejector rod is inserted into the third flow channel. The third cylinder can drive the third sealing ejector rod to block or release the blockage of the third flow channel; a fourth sealing ejector rod is provided at the end of the third sealing ejector rod away from the third cylinder, which can block the end of the third flow channel to ensure the sealing of the third flow channel and can relieve the flow rate of the adhesive liquid in the third flow channel to ensure the smooth flow of the adhesive liquid.

[0008] Further preferably, springs are sleeved on both the first sealing ejector rod and the third sealing ejector rod to realize that the first sealing ejector rod and the third sealing ejector rod can block the second flow channel and the third flow channel when the cylinders are not working; sealing rings are nested at the tops of the first sealing ejector rod and the third sealing ejector rod to ensure the sealing effect.

[0009] Further preferably, a pressure sensor is provided on each of the upper end cover and the lower end cover. The two pressure sensors are respectively connected to the first flow channel and the second flow channel for detecting the hydraulic pressure in the first flow channel and the second flow channel to ensure that the adhesive liquid can flow under the set hydraulic pressure.

[0010] Further preferably, a pressure stabilizing valve is connected to the glue inlet pipe to ensure the stability of the hydraulic pressure in the glue inlet pipe; the pressure stabilizing valve is fixed to the lower end cover through a pipe clip support plate to realize the fixation of the pressure stabilizing valve.

[0011] Further preferably, a plurality of equal-height columns are provided around the cylinder body. The upper and lower ends of the equal-height columns are respectively connected to the upper end cover and the lower end cover to ensure the stability of the fluid automatic feeding device.

[0012] Further preferably, a coupling is connected between the piston rod of the first cylinder and the pull rod to realize the connection between the first cylinder and the pull rod; a protective cover is provided between the first cylinder and the upper end cover. The protective cover surrounds the outside of the piston rod of the first cylinder and the pull rod to play a protective role.

[0013] Beneficial effects: The fluid automatic feeding device of the present utility model combines a cylinder body, an upper end cover, a lower end cover, an end cover connecting block, a glue feeding pipe and a return pipe to form a glue liquid circulation pipeline. The first cylinder drives the pull rod to move up and down to push the glue liquid to move and realize the glue application movement. Through the cooperation of the second cylinder, the first sealing ejector rod, the third cylinder and the third sealing ejector rod, the blocking or opening of the second flow channel and the third flow channel is realized, which is convenient for continuous glue application of the glue liquid. The structure of the fluid automatic feeding device is ingeniously designed, small in structure volume, simple to operate, capable of realizing continuous ejection of the glue liquid, realizing automatic glue application and quantitative conveying operations, and is convenient to clean, and can be popularized and applied. Brief Description of the Drawings

[0014] Figure 1 It is an isometric structural schematic diagram of the fluid automatic feeding device disclosed in the embodiment of the present utility model;

[0015] Figure 2 It is a front view structural schematic diagram of the fluid automatic feeding device disclosed in the embodiment of the present utility model;

[0016] Figure 3 It is a sectional structural schematic diagram of the fluid automatic feeding device disclosed in the embodiment of the present utility model;

[0017] Figure 4 is Figure 3 an enlarged structural schematic diagram of part A in

[0018] Reference numerals: 1 - cylinder body, 2 - upper end cover, 21 - first flow channel, 22 - glue outlet, 3 - lower end cover, 31 - second flow channel, 4 - first cylinder, 5 - pull rod, 51 - glue scraping ring, 6 - end cover connecting block, 61 - third flow channel, 7 - glue feeding pipe, 8 - return pipe, 9 - second cylinder, 10 - first sealing ejector rod, 11 - second sealing ejector rod, 12 - third cylinder, 13 - third sealing ejector rod, 14 - fourth sealing ejector rod, 15 - pressure sensor, 16 - pressure stabilizing valve, 17 - pipe clip support plate, 18 - equal-height column, 19 - protective cover. Detailed Description of the Embodiment

[0019] The following are specific embodiments of the present utility model in combination with the drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0020] Such as Figures 1-4As shown in the figure, a fluid automatic feeding device is used for the automatic transportation of adhesive liquid to achieve adhesive liquid caulking. The caulking mechanism includes a cylinder block 1. The upper and lower ends of the cylinder block 1 are respectively connected with an upper end cover 2 and a lower end cover 3. The upper end cover 2, the lower end cover 3 and the cylinder block 1 therebetween form an adhesive liquid storage and transportation cavity. Above the upper end cover 2, there is a first cylinder 4 arranged upside down. The lower piston rod end of the first cylinder 4 is connected with a pull rod 5 extending into the cylinder block 1. A scraping ring 51 is arranged at the lower end of the pull rod 5. That is, the first cylinder 4 can drive the pull rod 5 to move up and down, and then drive the scraping ring 51 to move up and down, so as to realize pumping the adhesive liquid and discharging the adhesive liquid. Below the lower end cover 3, there is an end cover connection block 6. The end cover connection block 6 is connected with a glue inlet pipe 7. A horizontally arranged first flow channel 21 communicating with the cylinder block 1 is arranged in the upper end cover 2. The first flow channel 21 penetrates through the upper end cover 2 to form a glue outlet 22. A horizontally arranged second flow channel 31 communicating with the cylinder block 1 is arranged on the lower end cover 3. A return pipe 8 is arranged between the upper end cover 2 and the lower end cover 3. The two ends of the return pipe 8 are respectively communicated with the first flow channel 21 and the second flow channel 31. A vertically arranged third flow channel 61 is arranged on the end cover connection block 6. The upper end of the third flow channel 61 is connected to the cylinder block 1 and the second flow channel 31 at the same place. The lower end of the third flow channel 61 is communicated with the glue inlet pipe 7. Among them, the first flow channel 21, the second flow channel 31, the third flow channel 61 and the return pipe 8 are used for the circulation and transportation of the adhesive liquid, and the glue inlet pipe 7 is used for the feeding of the adhesive liquid. By driving the pull rod 5 by the first cylinder 4 to drive the scraping ring 51 to move up and down, suction is generated in the cylinder block 1, and the adhesive liquid is sucked into the third flow channel 61 and the cylinder block 1 through the glue inlet pipe 7, and flows into the first flow channel 21 through the second flow channel 31 and the return pipe 8, and finally flows out through the glue outlet 22, so as to realize the transportation and caulking of the adhesive liquid.

[0021] In one solution of the present application, a second cylinder 9 is arranged on the side of the lower end cover 3. The second cylinder 9 is horizontally arranged. The piston rod end of the second cylinder 9 is connected with a first sealing push rod 10. The first sealing push rod 10 is inserted into the second flow channel 31. The second cylinder 9 and the first sealing push rod 10 are used for sealing or conducting the second flow channel 31. When the second cylinder 9 drives the first sealing push rod 10 to make a horizontal extending movement, the first sealing push rod 10 can seal the second flow channel 31, and can prevent the adhesive liquid in the return pipe 8 and the first flow channel 21 from flowing back into the third flow channel 61 and the cylinder block 1 through the second flow channel 31 when the first cylinder 4 drives the pull rod 5 to move upward.

[0022] Based on the above solution, a second sealing ejector rod 11 is provided at the end of the first sealing ejector rod 10 away from the second cylinder 9. The second sealing ejector rod 11 is disposed in the second flow channel 31 and passes through the connection of the cylinder block 1, the second flow channel 31, and the third flow channel 61, which can prevent the first cylinder 4 from sucking the adhesive liquid in the cylinder block 1 too violently and ensure the smooth flow of the adhesive liquid. At the same time, the second sealing ejector rod 11 can seal the port of the second flow channel 31. When it is necessary to clean the second flow channel 31, the second sealing ejector rod 11 can be removed to facilitate the cleaning of the second flow channel 31.

[0023] Based on the above solution, a third cylinder 12 is provided on the side of the end cover connecting block 6. The third cylinder 12 is horizontally arranged, and the piston rod end of the third cylinder 12 is connected with a third sealing ejector rod 13. The third sealing ejector rod 13 is inserted into the third flow channel 61. The third cylinder 12 can drive the third sealing ejector rod 13 to move horizontally to realize the sealing or conduction of the third flow channel 31. When the third cylinder 12 drives the third sealing ejector rod 13 to make a horizontal extending movement, the third flow channel 31 can be sealed to prevent the adhesive liquid in the cylinder block 1 and the third flow channel 61 from flowing back into the glue supply pipe 7 through the third flow channel 61 when the first cylinder 4 drives the pull rod 5 to push downward. A fourth sealing ejector rod 14 is provided at the end of the third sealing ejector rod 13 away from the third cylinder 12, which can prevent and moderate the flow rate of the adhesive liquid in the third flow channel 31 and ensure the smooth flow of the adhesive liquid. At the same time, the fourth sealing ejector rod 14 can seal the port of the third flow channel 61. When it is necessary to clean the third flow channel 61, the fourth sealing ejector rod 14 can be removed to facilitate the cleaning of the third flow channel 61.

[0024] Based on the above solution, springs are sleeved on both the first sealing ejector rod 10 and the third sealing ejector rod 13 for the elastic reset of the first sealing ejector rod 10 and the third sealing ejector rod 13. When the second cylinder 9 and the third cylinder 12 are not working, it is used to push the first sealing ejector rod 10 to block the second flow channel 31 and push the third sealing ejector rod 13 to block the third flow channel 61. Sealing rings are nested at the tops of the first sealing ejector rod 10 and the third sealing ejector rod 13 to ensure the sealing effect of the first sealing ejector rod 10 and the third sealing ejector rod 13.

[0025] In another solution of the present application, a pressure sensor 15 is provided on each of the upper end cover 2 and the lower end cover 3. The two pressure sensors 15 are respectively connected to the first flow channel 21 and the second flow channel 31 for detecting the hydraulic pressure of the adhesive liquid in the first flow channel 21 and the second flow channel 31, ensuring that the adhesive liquid can be transported at a set hydraulic pressure and realizing the high-precision and quantitative transportation of the adhesive liquid.

[0026] In another solution of this application, a pressure stabilizing valve 16 is connected to the glue inlet pipe 7 for regulating the hydraulic pressure in the glue inlet pipe 7 to achieve precise control of the hydraulic pressure in the glue inlet pipe 7; the pressure stabilizing valve 16 is fixed to the lower end cover 3 through a pipe clamp support plate 17 to ensure the stable installation of the pressure stabilizing valve 16.

[0027] In the solution of this application, multiple equal-height columns 18 are provided around the cylinder block 1. The upper and lower ends of the equal-height columns 18 are respectively connected to the upper end cover 2 and the lower end cover 3. Through the arrangement of the equal-height columns 18, the connection between the cylinder block 1, the upper end cover 2 and the lower end cover 3 is ensured to be stable.

[0028] In the solution of this application, a coupling is connected between the piston rod of the first cylinder 4 and the pull rod 5 to ensure the stable connection between the piston rod of the first cylinder 4 and the pull rod 5; a protective cover 19 is provided between the first cylinder 4 and the upper end cover 2. The protective cover 19 surrounds the outside of the piston rod of the first cylinder 4 and the pull rod 5 for protecting the piston rod of the first cylinder 4, the pull rod 5 and the connecting components between them.

[0029] The working process of this fluid automatic feeding device is as follows: First, the piston rod of the third cylinder 12 contracts, driving the third sealing ejector rod 13 to release the blockage of the third flow channel 61, and the piston rod of the second cylinder 9 extends, driving the first sealing ejector rod 10 to block the second flow channel 31; Secondly, the first cylinder 4 acts, driving the pull rod 5 to move upward, driving the scraping ring 51 to move upward synchronously, so that suction is generated in the cylinder block 1, and the adhesive liquid is sucked from the glue inlet pipe 7 into the third flow channel 61 and the cylinder block 1; Then the piston rod of the third cylinder 12 extends, driving the third sealing ejector rod 13 to block the third flow channel 61, the piston rod of the second cylinder 9 contracts, driving the first sealing ejector rod 10 to contract, and the first sealing ejector rod 10 releases the blockage of the second flow channel 31; Next, the first cylinder 4 drives the pull rod 5 to move downward, pushing the adhesive liquid in the cylinder block 1 into the second flow channel 31, and entering the return pipe 8, and finally entering the first flow channel 21. A part of the adhesive liquid entering the first flow channel 21 enters the section of the first flow channel 31 close to the cylinder block 1, and a part flows out through the glue outlet 22; Immediately afterwards, the third cylinder 12 drives the third sealing ejector rod 13 to release the blockage of the third flow channel 61, the second cylinder 9 drives the first sealing ejector rod 10 to block the second flow channel 31, and then the first cylinder 4 drives the pull rod 5 to rise, sucking the adhesive liquid into the third flow channel 61 and the cylinder block 1 through the glue inlet pipe 7, and at the same time pushing out the adhesive liquid in the section of the first flow channel 21 close to the cylinder block 1 through the glue outlet 22, so as to achieve that adhesive liquid is ejected when the piston rod of the first cylinder 4 makes a telescopic movement, and achieve continuous glue ejection.

[0030] In this application, this fluid automatic feeding device is applicable to the high-precision quantitative conveying of adhesive liquids such as viscous coatings and glues.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fluid automatic feeding device, characterized in that: The invention comprises a cylinder body (1), wherein the upper and lower ends of the cylinder body (1) are respectively connected to an upper end cover (2) and a lower end cover (3), a first cylinder (4) which is inverted downward is provided above the upper end cover (2), a piston rod end at the lower end of the first cylinder (4) is connected to a pull rod (5) which extends into the cylinder body (1), a rubber scraping ring (51) is provided at the lower end of the pull rod (5), an end cover connecting block (6) is provided below the lower end cover (3), the end cover connecting block (6) is connected to a rubber inlet pipe (7), a first flow channel (21) which is arranged transversely and communicates with the cylinder body (1) is provided in the upper end cover (2), and the first flow channel (21) passes through the upper end cover (2) to form a glue outlet (22); the lower end cover (3) is provided with a transversely arranged second flow channel (31) connected to the cylinder body (1); a return pipe (8) is provided between the upper end cover (2) and the lower end cover (3); the two ends of the return pipe (8) are respectively connected to the first flow channel (21) and the second flow channel (31); the end cover connecting block (6) is provided with a longitudinally arranged third flow channel (61); the upper end of the third flow channel (61) is connected to the cylinder body (1) and the second flow channel (31) at the same place, and the lower end of the third flow channel (61) is connected to the glue inlet pipe (7).

2. The fluid automatic feeding device according to claim 1, characterized in that: A second cylinder (9) is provided on the side of the lower end cover (3), the second cylinder (9) is arranged transversely, the piston rod end of the second cylinder (9) is connected to a first sealing push rod (10), and the first sealing push rod (10) is inserted into the second flow channel (31).

3. A fluid automatic feeding device according to claim 2, characterized in that: A second sealing push rod (11) is provided at the end of the first sealing push rod (10) away from the second cylinder (9); the second sealing push rod (11) is inserted into the second flow channel (31) and passes through the connection between the cylinder body (1), the second flow channel (31) and the third flow channel (61).

4. The fluid automatic feeding device according to claim 3, characterized in that: A third cylinder (12) is provided on the side of the end cover connecting block (6), the third cylinder (12) is arranged transversely, the piston rod end of the third cylinder (12) is connected to a third sealing push rod (13), the third sealing push rod (13) is inserted into the third flow channel (61), and a fourth sealing push rod (14) is provided at the end of the third sealing push rod (13) away from the third cylinder (12).

5. The fluid automatic feeding device according to claim 4, characterized in that: The first sealing top rod (10) and the third sealing top rod (13) are both sleeved with springs, and the top ends of the first sealing top rod (10) and the third sealing top rod (13) are both embedded with sealing rings.

6. The fluid automatic feeding device according to claim 1, wherein: A pressure sensor (15) is provided on each of the upper end cover (2) and the lower end cover (3), and the two pressure sensors (15) are respectively connected to the first flow channel (21) and the second flow channel (31).

7. The fluid automatic feeding device according to claim 1, characterized in that: The glue inlet pipeline (7) is connected to a pressure stabilizing valve (16), and the pressure stabilizing valve (16) is fixed to the lower end cover (3) via a pipe clamp support plate (17).

8. A fluid automatic feeding device according to claim 1, characterized in that: A plurality of equal-height columns (18) are arranged around the cylinder body (1), and the upper and lower ends of the equal-height columns (18) are respectively connected to the upper end cover (2) and the lower end cover (3).

9. The fluid automatic feeding device according to claim 1, wherein: A coupling is connected between the piston rod of the first cylinder (4) and the pull rod (5). A protective cover (19) is provided between the first cylinder (4) and the upper end cover (2), and the protective cover (19) surrounds the outside of the piston rod and the pull rod (5) of the first cylinder (4).

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