Glue solution supply equipment

Abstract

The utility model discloses glue solution supply equipment which comprises a barrel with an opening in the upper end, a cover plate arranged at the top of the barrel, a feeding valve, a discharging valve, an air inlet valve and a sealing block, wherein the feeding valve, the discharging valve and the air inlet valve are installed on the upper surface of the cover plate and communicated with the interior of the barrel respectively, and the sealing block is located above a through hole and arranged on the cover plate. A first ring body and a second ring body are sequentially stacked between the sealing block and the through hole in the length direction of the driving shaft in a coaxial mode from bottom to top, a plurality of first stop pieces are arranged on the circumferential side wall of the first ring body and located in the first gap in an inclined mode, and the lower ends of the first stop pieces make contact with the surface of the driving shaft. An annular cavity is defined by the first stop piece and the circumferential side wall of the first ring body. The glue solution supply equipment disclosed by the utility model is beneficial to increasing the internal air pressure threshold value, reducing the condition of unstable internal pressure caused by air leakage, and improving the stability of upward glue supply.

Description

Technical Field

[0001] The utility model relates to the technical field of glue supply equipment, in particular to a glue liquid supply equipment. Background Art

[0002] In the gluing process during the processing of parts, glue is often used to bond the parts to be processed. The supply process of the glue used is mainly: first, the glue is injected into a mixing barrel according to a certain formula ratio for stirring, degassing and heating, and then stored in the mixing barrel for use, and then the processed glue in the mixing barrel is added to the parts through the glue dispensing equipment.

[0003] After searching, the patent publication number CN213996560U discloses a "stirring and feeding system for hot melt adhesive machine", including a bottom plate, a stirring mechanism and an electric control box. The front side of the top of the bottom plate is provided with a first pneumatic grouting pump through a lifting mechanism, and the first pneumatic grouting pump is provided with a first feed inlet and a first discharge outlet. A support seat is fixedly installed on the bottom plate at the rear side of the lifting mechanism, and the stirring mechanism and the electric control box are respectively fixedly installed on both sides of the top of the support seat. A second pneumatic grouting pump is installed on one side of the electric control box, and the second pneumatic grouting pump is provided with a second feed inlet and a second discharge outlet. The device integrates stirring and feeding into one, realizes uninterrupted feeding of the hot melt adhesive machine, the raw materials are not easy to deteriorate, the stirring is uniform, the operation is simple, and the work efficiency is high.

[0004] In the prior art, in order to prevent the particles from settling, it is necessary to continuously stir the glue at the bottom by driving the stirring rod, and by supplying air and pressurizing the inside of the mixing drum, the stirred glue is supplied upward through the discharge port. Therefore, a sealing ring is used to seal between the driving shaft and the cover plate of the drum. However, during the pressurization process inside the mixing drum, the internal pressure gradually increases. When the pressure increases to a certain value, air leakage is likely to occur between the driving shaft and the cover plate, causing the air pressure inside the drum to drop rapidly, resulting in fluctuations in the glue supply and affecting subsequent dispensing. Utility Model Content

[0005] The utility model aims to provide a glue supply device, which is conducive to improving the internal air pressure threshold, reducing the situation of unstable internal pressure caused by air leakage, and improving the stability of glue supply.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a glue liquid supply device, comprising: a cylinder with an opening at the upper end, a cover plate arranged on the top of the cylinder, a feed valve, a discharge valve and an air intake valve respectively connected to the inside of the cylinder are installed on the upper surface of the cover plate, and the air intake end of the air intake valve is connected to the air source, located between the feed valve and the discharge valve, and a through hole is opened on the cover plate;

[0007] A sealing block on which the drive shaft is rotatably mounted is disposed above the through hole and on the cover plate, a first ring body and a second ring body are coaxially stacked in sequence from bottom to top between the sealing block and the through hole and along the length direction of the drive shaft, a first gap and a second gap are respectively provided between the outer wall of the drive shaft and the first ring body and the second ring body; a plurality of first stop plates are located inside the first gap and are obliquely provided on the circumferential side wall of the first ring body, the lower end of the first stop plate contacts the surface of the drive shaft, and an annular cavity is enclosed between the first stop plate and the circumferential side wall of the first ring body.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above scheme, a plurality of second stop plates are arranged inside the second gap and on the circumferential side wall of the second ring body in an inclined manner, and one end of the second stop plate away from the second ring body contacts the surface of the drive shaft, and lubricating oil is filled between the first stop plate and the second stop plate.

[0010] 2. In the above solution, a ring body is arranged between the first circle body and the second circle body.

[0011] 3. In the above scheme, the ring body is provided with a plurality of second through holes spaced apart along the circumferential direction, and a connecting pipe connected to the second through holes is provided inside the sealing block, and an oil valve cooperating with the connecting pipe is provided on the outer wall of the sealing block.

[0012] 4. In the above solution, the first stopper is provided with a flange along the circumferential direction relative to the bottom of one side of the annular cavity.

[0013] 5. In the above scheme, the diameter of the cross-section of the annular cavity decreases from bottom to top.

[0014] 6. In the above solution, there are at least two second ring bodies stacked up and down.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] The utility model discloses a glue supply device, which has a first ring body and a second ring body coaxially stacked in sequence from bottom to top between the sealing block and the through hole and along the length direction of the driving shaft, and a plurality of first stop plates are arranged in a first gap and on the circumferential side wall of the first ring body in an inclined manner, the lower end of the first stop plate contacts the surface of the driving shaft, and an annular cavity is formed between the first stop plate and the circumferential side wall of the first ring body, and on the basis of the first stop plate contacting with the surface of the driving shaft to seal the through hole, when the air pressure inside the cylinder is relatively large, the first stop plate will be pushed upward, and at the same time, the gas entering the annular cavity further pushes the first stop plate to contact closely with the surface of the driving shaft, thereby ensuring the sealing between the through hole and the driving shaft, which is beneficial to improving the air pressure threshold inside the cylinder and reducing the pressure caused by Air leakage between the drive shaft and the through hole leads to unstable pressure inside the cylinder, thereby improving the stability of glue supply; further, a plurality of second stop plates are arranged in an inclined manner inside the second gap and on the circumferential side wall of the second circle body, and the second stop plate is in contact with the surface of the drive shaft at one end away from the second circle body, and lubricating oil is filled between the first stop plate and the second stop plate. When the first stop plate is pushed upward by the air pressure inside the cylinder, the lubricating oil between the first stop plate and the second stop plate is squeezed, so that the second stop plate is squeezed upward, and the second stop plate is in close contact with the drive shaft, thereby avoiding leakage of lubricating oil. While extending the service life of the first stop plate, the sealing between the drive shaft and the cover plate is further improved, which is beneficial to improving the stability of the pressure inside the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a schematic diagram of the overall structure of the glue supply device of the utility model;

[0018] Attached Figure 2 It is a partial structural cross-sectional view of the glue supply device of the utility model;

[0019] Attached Figure 3 For the utility model Figure 2 A magnified image of point A;

[0020] Attached Figure 4 It is a schematic diagram of the cross-sectional structure of the first circle body in the glue supply device of the utility model.

[0021] In the above drawings: 1. cylinder; 2. cover plate; 3. through hole; 4. feed valve; 5. discharge valve; 6. intake valve; 7. drive shaft; 8. sealing block; 901. first ring body; 902. first stop plate; 903. annular cavity; 904. flange; 10. ring body; 101. second through hole; 111. second ring body; 112. second stop plate; 113. annular groove; 12. connecting pipe; 13. oil valve. DETAILED DESCRIPTION

[0022] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0023] Embodiment 1: A glue liquid supply device, comprising: a cylinder 1 with an opening at the upper end, a cover plate 2 arranged on the top of the cylinder 1, a feed valve 4, a discharge valve 5 and an air inlet valve 6 respectively connected to the inside of the cylinder 1 are installed on the upper surface of the cover plate 2, and the air inlet end of the air inlet valve 6 is connected to an air source, is located between the feed valve 4 and the discharge valve 5, and has a through hole 3 on the cover plate 2;

[0024] When in use, after the glue liquid inside the cylinder is mixed, the air pressure inside the cylinder is increased through the air inlet valve, so that the glue inside the cylinder flows out through the discharge valve, and the driving shaft and the cover plate and the sealing block are sealed through the first ring body, the ring body, and the second ring body. Lubricating oil is injected into the connecting pipe through the oil valve, and the lubricating oil flows into the first gap and the second gap through the second through hole of the ring body, lubricating the first ring body and the second ring body, slowing down the wear of the first stopper sheet, and forming a liquid seal for the first stopper sheet, which is beneficial to improving the sealing performance between the first stopper sheet and the driving shaft;

[0025] A sealing block 8 rotatably mounted with the driving shaft 7 is disposed above the through hole 3 and on the cover plate 2. A first ring body 901 and a second ring body 111 are coaxially stacked from bottom to top along the length direction of the driving shaft 7 between the sealing block 8 and the through hole 3. A first gap and a second gap are respectively formed between the outer wall of the driving shaft 7 and the first ring body 901 and the second ring body 111. A plurality of first stopper sheets 902 are disposed in an inclined manner inside the first gap and on the circumferential side wall of the first ring body 901. The lower end of the first stopper sheet 902 contacts the surface of the driving shaft 7, and an annular cavity 903 is enclosed between the first stopper sheet 902 and the circumferential side wall of the first ring body 901.

[0026] When the air pressure inside the cylinder is relatively high, the first stopper will be pushed upwards, so that the first stopper is in close contact with the surface of the drive shaft. During the process of the first stopper being in close contact with the surface of the drive shaft, the gas inside the cylinder will enter the annular cavity to further push the first stopper into close contact with the surface of the drive shaft, thereby ensuring the sealing effect between the through hole and the drive shaft.

[0027] A plurality of second stopper sheets 112 are disposed inside the second gap and on the circumferential side wall of the second ring body 111 in an inclined manner. One end of the second stopper sheet 112 away from the second ring body 111 contacts the surface of the drive shaft 7. Lubricating oil is filled between the first stopper sheet 902 and the second stopper sheet 112.

[0028] When the air pressure increases further and the first stop plate is pushed up and deformed by the air pressure inside the cylinder, the first stop plate will squeeze the lubricating oil between the first stop plate and the second stop plate, thereby squeezing the second stop plate upward, which is conducive to the close contact between the second stop plate and the drive shaft and avoids leakage of lubricating oil and gas.

[0029] A ring body 10 is disposed between the first ring body 901 and the second ring body 111 .

[0030] The ring body 10 is provided with a plurality of second through holes 101 spaced apart along the circumferential direction, and a connecting pipe 12 connected to the second through holes 101 is provided inside the sealing block 8 , and an oil valve 13 cooperating with the connecting pipe 12 is provided on the outer wall of the sealing block 8 .

[0031] The first stopper 902 is provided with a flange 904 at the bottom of one side of the annular cavity 903 and along the circumferential direction.

[0032] The diameter of the cross-section of the annular cavity 903 decreases from bottom to top.

[0033] The second ring bodies 111 are stacked in three layers on top and bottom.

[0034] The second stop pieces 112 are distributed at intervals along the vertical direction.

[0035] The first gap is larger than the second gap.

[0036] An annular groove 113 is disposed below the second stopper 112 and along the circumferential inner wall of the second ring body 111 .

[0037] The shape of the annular cavity 903 is trapezoidal.

[0038] Embodiment 2: A glue liquid supply device, comprising: a cylinder 1 with an opening at the upper end, a cover plate 2 arranged on the top of the cylinder 1, a feed valve 4, a discharge valve 5 and an air inlet valve 6 respectively connected to the inside of the cylinder 1 are installed on the upper surface of the cover plate 2, and the air inlet end of the air inlet valve 6 is connected to an air source, is located between the feed valve 4 and the discharge valve 5, and has a through hole 3 on the cover plate 2;

[0039] A sealing block 8 rotatably mounted with the driving shaft 7 is disposed above the through hole 3 and on the cover plate 2. A first ring body 901 and a second ring body 111 are coaxially stacked from bottom to top along the length direction of the driving shaft 7 between the sealing block 8 and the through hole 3. A first gap and a second gap are respectively formed between the outer wall of the driving shaft 7 and the first ring body 901 and the second ring body 111. A plurality of first stopper sheets 902 are disposed in an inclined manner inside the first gap and on the circumferential side wall of the first ring body 901. The lower end of the first stopper sheet 902 contacts the surface of the driving shaft 7, and an annular cavity 903 is enclosed between the first stopper sheet 902 and the circumferential side wall of the first ring body 901.

[0040] On the basis of the first stopper sheet contacting with the surface of the driving shaft to seal the through hole, when the air pressure inside the cylinder is relatively high, the first stopper sheet will be pushed upwards, and at the same time, the gas entering the annular cavity further pushes the first stopper sheet to be in close contact with the surface of the driving shaft, thereby ensuring the sealing between the through hole and the driving shaft, which is beneficial to improving the air pressure threshold inside the cylinder, reducing the situation where the pressure inside the cylinder is unstable due to air leakage between the driving shaft and the through hole, and improving the stability of glue supply;

[0041] A plurality of second stopper sheets 112 are disposed inside the second gap and on the circumferential side wall of the second ring body 111 in an inclined manner. One end of the second stopper sheet 112 away from the second ring body 111 contacts the surface of the drive shaft 7. Lubricating oil is filled between the first stopper sheet 902 and the second stopper sheet 112.

[0042] When the first stop piece is pushed upward by the air pressure inside the cylinder, the lubricating oil between the first stop piece and the second stop piece is squeezed, so that the second stop piece is squeezed upward. The second stop piece is in close contact with the drive shaft, avoiding leakage of the lubricating oil. While extending the service life of the first stop piece, the sealing between the drive shaft and the cover plate is further improved, which is beneficial to improving the stability of the internal pressure of the cylinder.

[0043] A ring body 10 is disposed between the first ring body 901 and the second ring body 111 .

[0044] The ring body 10 is provided with a plurality of second through holes 101 spaced apart along the circumferential direction, and a connecting pipe 12 connected to the second through holes 101 is provided inside the sealing block 8 , and an oil valve 13 cooperating with the connecting pipe 12 is provided on the outer wall of the sealing block 8 .

[0045] The first stopper 902 is provided with a flange 904 at the bottom of one side of the annular cavity 903 and along the circumferential direction.

[0046] The second ring body 111 is stacked in two parts, one on top and the other on the bottom.

[0047] An annular groove 113 is disposed below the second stopper 112 and along the circumferential inner wall of the second ring body 111 .

[0048] The distance between the first stopper 902 and the driving shaft 7 increases from bottom to top.

[0049] The distance between the second stopper 112 and the driving shaft 7 increases from bottom to top.

[0050] The shape of the annular cavity 903 is a triangle.

[0051] The working principle is:

[0052] When in use, after the glue liquid inside the cylinder is mixed, the air pressure inside the cylinder is increased through the air inlet valve, so that the glue inside the cylinder flows out through the discharge valve, and the driving shaft and the cover plate and the sealing block are sealed through the first ring body, the ring body, and the second ring body. Lubricating oil is injected into the connecting pipe through the oil valve, and the lubricating oil flows into the first gap and the second gap through the second through hole of the ring body, lubricating the first ring body and the second ring body, slowing down the wear of the first stopper sheet, and forming a liquid seal for the first stopper sheet, which is beneficial to improving the sealing performance between the first stopper sheet and the driving shaft;

[0053] When the air pressure inside the cylinder is relatively high, the first stopper will be pushed upwards, so that the first stopper is in close contact with the surface of the drive shaft. During the process of the first stopper being in close contact with the surface of the drive shaft, the gas inside the cylinder will enter the annular cavity to further push the first stopper into close contact with the surface of the drive shaft, thereby ensuring the sealing effect between the through hole and the drive shaft.

[0054] When the air pressure increases further and the first stop plate is pushed up and deformed by the air pressure inside the cylinder, the first stop plate will squeeze the lubricating oil between the first stop plate and the second stop plate, thereby squeezing the second stop plate upward, which is conducive to the close contact between the second stop plate and the drive shaft and avoids leakage of lubricating oil and gas.

[0055] When the glue supply device is used, when the air pressure inside the cylinder is relatively high, the first stopper will be pushed upwards. At the same time, the gas entering the annular cavity further pushes the first stopper to be in close contact with the surface of the drive shaft, thereby ensuring the sealing between the through hole and the drive shaft, which is beneficial to improving the air pressure threshold inside the cylinder, reducing the situation where the pressure inside the cylinder is unstable due to air leakage between the drive shaft and the through hole, and improving the stability of glue supply;

[0056] Furthermore, when the first stop piece is pushed upward by the air pressure inside the cylinder, the lubricating oil between the first stop piece and the second stop piece is squeezed, so that the second stop piece is squeezed upward and the second stop piece is in close contact with the drive shaft, thereby avoiding leakage of the lubricating oil. While extending the service life of the first stop piece, the sealing between the drive shaft and the cover plate is further improved, which is beneficial to improving the stability of the internal pressure of the cylinder.

[0057] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A glue supply device, comprising: A cylinder (1) having an opening at the upper end, and a cover plate (2) arranged on the top of the cylinder (1); a feed valve (4), a discharge valve (5) and an air intake valve (6) each of which is connected to the interior of the cylinder (1) are mounted on the upper surface of the cover plate (2); an air intake end of the air intake valve (6) is connected to an air source, is located between the feed valve (4) and the discharge valve (5), and has a through hole (3) formed on the cover plate (2); The invention is characterized in that: a sealing block (8) on which a driving shaft (7) is rotatably mounted is arranged above the through hole (3) and on the cover plate (2); a first ring body (901) and a second ring body (111) are coaxially stacked from bottom to top along the length direction of the driving shaft (7) between the sealing block (8) and the through hole (3); a first gap and a second gap are respectively provided between the outer wall of the driving shaft (7) and the first ring body (901) and the second ring body (111); a plurality of first stop plates (902) are arranged in an inclined manner on the circumferential side wall of the first ring body (901) and located inside the first gap; the lower end of the first stop plate (902) contacts the surface of the driving shaft (7); and an annular cavity (903) is enclosed between the first stop plate (902) and the circumferential side wall of the first ring body (901).

2. The glue supply device according to claim 1, characterized in that: A plurality of second stop plates (112) are arranged in an inclined manner inside the second gap and on the circumferential side wall of the second ring body (111); one end of the second stop plate (112) away from the second ring body (111) contacts the surface of the drive shaft (7); and lubricating oil is filled between the first stop plate (902) and the second stop plate (112).

3. The glue supply device according to claim 2, characterized in that: A ring body (10) is disposed between the first ring body (901) and the second ring body (111).

4. The glue supply device according to claim 3, characterized in that: The ring body (10) is provided with a plurality of second through holes (101) spaced apart along the circumferential direction, and a connecting pipe (12) connected to the second through hole (101) is provided inside the sealing block (8), and an oil valve (13) cooperating with the connecting pipe (12) is provided on the outer wall of the sealing block (8).

5. The glue supply device according to claim 1, characterized in that: The first stopper (902) is provided with a flange (904) on the bottom of one side relative to the annular cavity (903) and along the circumferential direction.

6. The glue supply device according to claim 1, characterized in that: The diameter of the cross-sectional shape of the annular cavity (903) decreases from bottom to top.

7. The glue supply device according to claim 1, characterized in that: There are at least two second ring bodies (111) stacked one on top of the other.

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