Pressure stabilizing device for glue supply of pressure plate type screw pump

Abstract

The utility model relates to the technical field of glue supply equipment, and discloses a pressure stabilizing device for glue supply of a pressure plate type screw pump, which comprises a screw pump body, one end of the screw pump body penetrates through a mounting plate and is fixedly connected with a guide pipe, the surface of the guide pipe is provided with a glue outlet, the glue outlet is connected with a glue supply pipe in a penetrating manner, and the glue supply pipe is connected with the screw pump body. The glue supply pipe is connected with a T-shaped pipe in a penetrating mode, a rotary knob is rotationally connected to the surface of the T-shaped pipe, one end of the rotary knob is in a bevel gear shape, one end of a bevel gear of the rotary knob is in meshed connection with a bevel gear rotating shaft, a sleeve is rotationally connected to the upper end of the surface of the bevel gear rotating shaft, and the surface of the sleeve is fixedly connected with the inner wall of the T-shaped pipe. According to the pressure stabilizing device for glue supply of the pressure plate type screw pump, by arranging the T-shaped pipe, the rotary knob, the bevel gear rotating shaft, the sleeve, the rectangular block, the threaded block, the spring and the one-way valve head body, when the rotary knob is rotated, the bevel gear rotating shaft rotates, and meanwhile the rectangular block at the bottom of the bevel gear rotating shaft drives the threaded block to move up and down in the sleeve in a threaded mode.

Description

Technical Field

[0001] The utility model relates to the technical field of glue supply equipment, in particular to a pressure stabilizing device for glue supply of a pressure plate type screw pump. Background Art

[0002] The pressure plate screw pump is a commonly used glue dispensing equipment in the glue dispensing industry. It drives the glue to the screw pump through pressure, controls the precise constant volume characteristics of the screw pump, and realizes precise glue supply operation. The pressure plate screw pump has a fast response speed, can achieve high-speed glue dispensing, and improve production efficiency. The pressure plate screw pump can adjust the flow rate of glue according to actual needs, avoid waste, and reduce costs. The pressure plate screw pump is widely used in the glue dispensing process of electronics, automobiles, medical equipment, optical instruments and other industries to accurately control the flow and position of glue.

[0003] At present, the pressure stabilizing device of the platen screw pump for glue supply on the market has the following shortcomings: for high viscosity glue higher than 500,000cps, the pressure drop of the pipeline cannot be ignored. And when the dispensing valve is dispensing, the dispensing valve will be opened and closed intermittently. At this time, the platen screw pump that needs to supply glue must also be opened and closed at the same time. However, the long pipeline of high viscosity glue will slow down the response speed of glue supply, resulting in the inability to meet the simultaneity. The frequent opening and closing of the platen screw pump will lead to unstable glue supply pressure and poor dispensing stability.

[0004] For this purpose, we designed a pressure stabilizing device for glue supply by a pressure plate type screw pump. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem solved by the utility model is to provide a pressure stabilizing device for glue supply of a pressure plate type screw pump which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problems of unstable glue supply pressure and poor glue dispensing stability raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical scheme: a pressure stabilizing device for supplying glue with a pressure plate type screw pump, comprising a screw pump body, one end of the screw pump body passes through a mounting plate and is fixedly connected with a conduit, a surface of the conduit is provided with a glue outlet, the glue outlet is connected through a glue supply pipe, the glue supply pipe is connected through a T-tube, the surface of the T-tube is rotatably connected with a knob, one end of the knob is in an umbrella tooth shape, one end of the knob umbrella tooth is meshingly connected with an umbrella tooth rotating shaft, the upper end of the surface of the umbrella tooth rotating shaft is rotatably connected with a sleeve, the surface of the sleeve is fixedly connected to the inner wall of the T-tube, a notch is provided at the top of the sleeve, a rectangular block is fixedly connected to the bottom of the umbrella tooth rotating shaft, the surface of the rectangular block passes through a threaded block and is movably connected, the surface of the threaded block is threadedly connected to the inner wall of the sleeve, the bottom of the threaded block is fixedly connected to one end of a spring, and the other end of the spring is fixedly connected to one end of a one-way valve head.

[0009] Optionally, one end of the T-tube is connected with a connecting pipe, and the connecting pipe can guide the glue into the glue dispensing valve body, and one end of the connecting pipe is connected to the glue dispensing valve body.

[0010] Optionally, the other end of the T-tube is connected with a return glue hose, which can guide the glue with higher pressure in the pipeline into the glue barrel when the dispensing valve body is not working. One end of the return glue hose is connected with a return glue port on the surface of the pressure coil.

[0011] Optionally, the top of the pressing coil is connected to the bottom of the conduit, and a glue barrel is movably connected to the surface of the pressing coil, so that the pressing coil can press the glue and let it flow out from the top.

[0012] Optionally, the bottom of the glue barrel is fixedly connected to a bottom plate, and the top two sides of the bottom plate are fixedly connected to the bottom of the cylinder. The cylinder can drive the mounting plate to move, so that the compression coil squeezes the glue in the glue barrel.

[0013] Optionally, a certain gap is set between the bottom of the sleeve and the inner bottom wall of the T-tube. The gap is for the glue to flow into the return glue tube 14 from the gap when the pressure is too high. The inner wall of the sleeve is slidably connected to the surface of the one-way valve head.

[0014] (III) Beneficial effects

[0015] The utility model provides a pressure stabilizing device for supplying glue by a pressure plate type screw pump, which has the following beneficial effects:

[0016] 1. The pressure stabilizing device for supplying glue of the pressure plate type screw pump is provided with a T-tube, a knob, a bevel gear shaft, a sleeve, a rectangular block, a threaded block and a spring, and a one-way valve head body. When the knob is turned, the bevel gear shaft rotates, and at the same time, the rectangular block at the bottom drives the threaded block to move up and down the inner thread of the sleeve, so that the threaded block carries the extrusion spring and changes the compression length of the spring. Therefore, the range of movement of the one-way valve head body pushed by the pressure can be adjusted, which plays a role in adjusting the pressure of the device when supplying glue and improving the stability of the pressure of the device when supplying glue.

[0017] 2. The pressure stabilizing device of the pressure plate screw pump for glue supply is set by the T-tube, the return glue tube, and the sleeve. After the knob is turned to set the specified pressure, after the dispensing valve body is closed, the glue will push open the one-way valve head, and the glue will flow into the inner wall of the T-tube and the sleeve, and finally flow into the return glue tube from the outlet at one end of the T-tube, and finally flow into the pressure plate tube. The glue will form a circulation flow, which not only completes the pressure relief of the glue supply tube, but also maintains the pressure set by the knob. In this way, the screw pump body does not need to work intermittently, but keeps rotating, which plays a role in stabilizing the glue supply, reducing the curing of the glue and reducing the flow delay during glue supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the bevel gear shaft of the utility model;

[0020] Figure 3 This is a schematic diagram of the sleeve structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the coiled tube of the utility model.

[0022] In the figure: 1. Screw pump body; 2. Mounting plate; 3. Conduit; 4. Rubber supply hose; 5. T-tube; 6. Knob; 7. Bevel gear shaft; 8. Sleeve; 9. Rectangular block; 10. Threaded block; 11. Spring; 12. One-way valve head; 13. Connecting pipe; 14. Dispensing valve body; 15. Rubber return hose; 16. Pressed coil pipe; 17. Rubber barrel; 18. Cylinder. DETAILED DESCRIPTION

[0023] 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. 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.

[0024] See also Figures 1 to 4The utility model provides a technical solution: a pressure stabilizing device for supplying glue of a pressure plate type screw pump, comprising a screw pump body 1, one end of the screw pump body 1 passes through a mounting plate 2 and is fixedly connected with a conduit 3, a glue outlet is provided on the surface of the conduit 3, a glue outlet is connected through the glue outlet with a glue supply hose 4, a glue supply hose 4 is connected through a T-tube 5, a knob 6 is rotatably connected to the surface of the T-tube 5, one end of the knob 6 is in an umbrella tooth shape, one end of the knob 6 umbrella teeth is meshingly connected with an umbrella tooth shaft 7, a sleeve 8 is rotatably connected to the upper end of the surface of the umbrella tooth shaft 7, the surface of the sleeve 8 is fixedly connected to the inner wall of the T-tube 5, a notch is provided on the top of the sleeve 8, a rectangular block 9 is fixedly connected to the bottom of the umbrella tooth shaft 7, the surface of the rectangular block 9 passes through a threaded block 10 for active connection, and the threaded block 1 0 is threadedly connected to the inner wall of the sleeve 8, and the bottom of the threaded block 10 is fixedly connected to one end of the spring 11. Through the arrangement of the T-tube 5, the knob 6, the bevel gear shaft 7, the sleeve 8, the rectangular block 9, the threaded block 10 and the spring 11, and the one-way valve head 12 body, the knob 6 is turned, and the bevel gear shaft 7 rotates. At the same time, the rectangular block 9 at the bottom drives the threaded block 10 to move up and down in the sleeve 8, so that the threaded block 10 carries the extrusion spring 11 and changes the compression length of the spring 11. Therefore, the range of movement of the one-way valve head 12 body pushed by the pressure can be adjusted, which can adjust the pressure of the glue supply of the device and improve the stability of the pressure when the device is supplied with glue. The other end of the spring 11 is fixedly connected to one end of the one-way valve head 12;

[0025] One end of the T-shaped tube 5 is connected with a connecting tube 13, which can guide the glue into the glue dispensing valve body 14. One end of the connecting tube 13 is connected to the glue dispensing valve body 14;

[0026] The other end of the T-tube 5 is connected with a return glue pipe 15, which can guide the glue with a relatively high pressure in the pipeline to the return glue barrel 17 when the dispensing valve body 14 is not working. One end of the return glue pipe 15 is connected with a return glue port on the surface of the pressure coil 16;

[0027] The top of the pressing coil 16 is connected to the bottom of the conduit 3, and a glue barrel 17 is movably connected to the surface of the pressing coil 16, so that the pressing coil 16 can press the glue and let it flow out from the top;

[0028] The bottom of the glue barrel 17 is fixedly connected to a bottom plate, and the top two sides of the bottom plate are fixedly connected to the bottom of the cylinder 18. The cylinder 18 can drive the mounting plate 2 to move, so that the pressing coil 16 squeezes the glue in the glue barrel 17;

[0029] A certain gap is set between the bottom of the sleeve 8 and the inner bottom wall of the T-tube 5. The gap is for the glue to flow into the return glue tube 15 from the gap when the pressure is too high. The inner wall of the sleeve 8 is slidably connected to the surface of the one-way valve head 12.

[0030] In the utility model, the working steps of the device are as follows:

[0031] Step 1: Turn the knob 6, and the bevel gear shaft 7 rotates. At the same time, the rectangular block 9 at the bottom drives the thread block 10 to move up and down in the sleeve 8, so that the thread block 10 carries the extrusion spring 11 and changes the compression length of the spring 11, so that the range of movement of the one-way valve head 12 body pushed by the pressure can be adjusted;

[0032] The second step: after turning the knob 6 to set the specified pressure, open the screw pump body 1. After the dispensing valve body 14 is closed, the glue will push open the one-way valve head 12, allowing the glue to flow into the inner wall of the T-tube 5 and the sleeve 8, and finally flow into the return glue hose 15 from the notch at the top of the sleeve 8, and finally flow into the pressure coil 16. The glue then forms a circulation flow, which not only completes the pressure relief of the supply hose 4, but also maintains the pressure set by the knob 6. In this way, the screw pump body 1 does not need to work intermittently, but can rotate continuously.

[0033] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0034] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0035] 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. A pressure stabilizing device for supplying glue using a platen screw pump, comprising a screw pump body (1), characterized in that: One end of the screw pump body (1) passes through the mounting plate (2) and is fixedly connected to a conduit (3); a glue outlet is provided on the surface of the conduit (3); a glue supply hose (4) is connected through the glue outlet; a T-shaped tube (5) is connected through the glue supply hose (4); a knob (6) is rotatably connected to the surface of the T-shaped tube (5); one end of the knob (6) is in the shape of a bevel tooth; one end of the bevel tooth of the knob (6) is meshingly connected to a bevel tooth rotating shaft (7); a sleeve (8) is rotatably connected to the upper end of the surface of the bevel tooth rotating shaft (7); The surface of the sleeve (8) is fixedly connected to the inner wall of the T-shaped tube (5), a notch is provided at the top of the sleeve (8), a rectangular block (9) is fixedly connected to the bottom of the bevel gear shaft (7), the surface of the rectangular block (9) passes through a threaded block (10) for active connection, the surface of the threaded block (10) is threadedly connected to the inner wall of the sleeve (8), the bottom of the threaded block (10) is fixedly connected to one end of a spring (11), and the other end of the spring (11) is fixedly connected to one end of a one-way valve head (12).

2. A pressure stabilizing device for glue supply of a platen screw pump according to claim 1, characterized in that: One end of the T-shaped tube (5) is connected to a connecting tube (13), and one end of the connecting tube (13) is connected to a body (14) with a dispensing valve.

3. The pressure stabilizing device for glue supply of a platen screw pump according to claim 1, characterized in that: The other end of the T-shaped tube (5) is connected through a rubber return tube (15), and one end of the rubber return tube (15) is connected through a rubber return port provided on the surface of a pressure coil tube (16).

4. A pressure stabilizing device for glue supply of a platen screw pump according to claim 3, characterized in that: The top of the press-coil tube (16) is connected to the bottom of the conduit (3), and the surface of the press-coil tube (16) is movably connected to a rubber barrel (17).

5. A pressure stabilizing device for glue supply of a platen screw pump according to claim 4, characterized in that: The bottom of the glue barrel (17) is fixedly connected to a bottom plate, and the top two sides of the bottom plate are fixedly connected to the bottom of the cylinder (18).

6. The pressure stabilizing device for glue supply of a platen screw pump according to claim 1, characterized in that: A certain gap is provided between the bottom of the sleeve (8) and the inner bottom wall of the T-shaped tube (5), and the inner wall of the sleeve (8) is slidably connected to the surface of the one-way valve head (12).

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