Glue outlet pressure regulating valve for photovoltaic dispensing processing

Abstract

The glue outlet pressure regulating valve comprises a base provided with a liquid inlet and a liquid outlet, the upper end of the base is connected with a guide seat in a sealed mode, an upper cavity is formed between the guide seat and the base, the lower end of the base is connected with a supporting seat in a sealed mode, and a lower cavity is formed between the supporting seat and the base. A first mounting seat is arranged in the upper cavity, a second mounting seat is arranged in the lower cavity, a spring in a compressed state is vertically arranged between the lower surface of the second mounting seat and the supporting seat, and a first mounting hole communicated with the lower cavity is formed in the lower surface of the supporting seat; and the lower end of the spring is embedded into the first mounting hole and is in extrusion contact with the threaded plug mounted in the first mounting hole. The balance and stability of the pressure and flow of the output fluid can be improved, pressure equalizing and pressure buffering can be conducted on the flowing fluid, and therefore the balance and stability of the pressure of the fluid at the liquid outlet are improved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic glue dispensing, and in particular to a glue outlet pressure regulating valve for photovoltaic glue dispensing processing. Background Art

[0002] Solar panels are the core and most valuable part of solar power generation systems. Their function is to convert solar energy into electrical energy. Cell laminates must be encapsulated and protected with frames during outdoor applications. If the cell laminates are not well sealed around them, they will be damaged when exposed to rain or work in a high humidity environment for a long time, causing the solar panels to fail to work properly. The basic requirement for encapsulation is sealing. Solar cell modules are encapsulated with aluminum frames for gluing.

[0003] Photovoltaic modules usually include laminates, junction boxes, and frames. During the production process, frame gluers and junction box gluers are required to glue the frames and junction boxes respectively. When gluing large-sized parts such as photovoltaic modules, a large amount of glue is required, and the glue flow rate output from the glue supply unit is large, which can easily lead to unstable final glue pressure and glue output. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a glue outlet pressure regulating valve for photovoltaic glue dispensing processing, which can improve the balance and stability of the output fluid pressure and flow rate, and can also equalize and slow down the pressure of the fluid flowing through, thereby improving the balance and stability of the fluid pressure at the liquid outlet.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a glue discharging pressure regulating valve for photovoltaic glue dispensing processing, comprising: a base respectively provided with a liquid inlet and a liquid outlet, the upper end of the base is sealed and connected with a guide seat, and an upper cavity is formed between the guide seat, the lower end of the base is sealed and connected with a support seat, and a lower cavity is formed between the support seat, a first mounting seat is arranged in the upper cavity, a second mounting seat is arranged in the lower cavity, the first mounting seat and the second mounting seat, both of which are movable in the vertical direction, are connected by a connecting rod passing through the base, the lower end of a vertically extending push rod is connected to the first mounting seat, the upper end of the push rod slidably matched with the guide seat is connected to a piston rod, the upper end of the piston rod connected with the push rod at the lower end is embedded in a driving cavity of a cylinder body and is connected to a piston disk horizontally arranged in the driving cavity, an air pipe joint is installed on the cylinder body and on the side of the piston disk opposite to the piston rod, and the air pipe joint is connected with the driving cavity in the cylinder body through an air inlet channel; The base is provided with a liquid inlet channel, the lower end of the liquid inlet channel whose upper end is connected with the liquid inlet port is connected with the lower cavity and is installed with a connecting nozzle, a plug is provided between the connecting nozzle and the second mounting seat located in the lower cavity, the tube body portion of the connecting nozzle is embedded in the liquid inlet channel, and a plurality of liquid outlet holes are opened on the outer surface of the annular portion of the connecting nozzle which is located below the tube body portion and has an inner diameter larger than the tube body portion, the plug comprises: a main body portion which can be slidably embedded in the annular portion, a ball head portion which is formed in the center of the upper surface of the main body portion and can be embedded in the tube body portion, and a column portion which extends downward from the center of the lower surface of the main body portion, the upper surface of the main body portion has an annular groove opened around the ball head portion, the column portion is embedded in the second mounting hole opened on the upper surface of the second mounting seat and is gap-matched with the inner wall of the second mounting hole, and a flange radially outward is provided on the main body portion and located below the connecting nozzle, and the lower surface of the flange is in contact with the upper surface of the second mounting seat; A spring in a compressed state is vertically arranged between the lower surface of the second mounting seat and the support seat, and a first mounting hole connected to the lower cavity is provided on the lower surface of the support seat, and the lower end of the spring is embedded in the first mounting hole and is squeezed into contact with a threaded plug installed in the first mounting hole. When in a non-liquid-injecting state, the ball head of the plug is sealed with the tube body of the connecting nozzle, and a liquid outlet channel connecting the lower cavity and the liquid outlet is provided on the base and located on the side of the liquid inlet channel opposite to the liquid inlet.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above solution, the threaded plug with external threads is threadedly connected to the inner wall of the lower end of the first mounting hole.

[0007] 2. In the above scheme, a pressure sensor is installed on the liquid inlet and the liquid outlet, which is used to sense the liquid inlet pressure of the liquid inlet and the liquid outlet pressure of the liquid outlet in real time, and transmit the acquired pressure data to a controller. The controller controls the air intake at the air pipe joint according to the received liquid inlet pressure and liquid outlet pressure.

[0008] 3. In the above scheme, the upper surface of the guide seat is provided with a mounting groove, the center of the lower surface of the cylinder body has a protrusion embedded in the mounting groove, and the connection between the push rod and the piston rod is located in the area surrounded by the protrusion and the mounting groove.

[0009] 4. In the above solution, the base further comprises: a main body portion having a liquid inlet and a liquid outlet, an upper sleeve portion connected to the guide seat, and a lower sleeve portion connected to the support seat.

[0010] 5. In the above scheme, the lower end of the guide seat with an upper cavity groove and the upper end of the support seat with a lower cavity groove are respectively embedded in the upper sleeve part and the lower sleeve part, and a sealing ring is provided between the inner walls of the upper sleeve part and the lower sleeve part and the outer surfaces of the guide seat and the support seat.

[0011] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The glue outlet pressure regulating valve for photovoltaic glue dispensing processing of the present invention opens and closes the ball head on the plug and the tube body of the connecting nozzle, so that the fluid entering from the liquid inlet with a relatively large pressure and a large flow rate flows through the liquid inlet channel and the lower cavity in turn and is output from the liquid outlet with a smaller pressure, and can improve the balance and stability of the output fluid pressure and flow rate. Through the floating setting of the plug, the adaptive coaxial adjustment between the reciprocating telescopic plug and the liquid inlet channel can be achieved to avoid the force disturbance caused by the eccentricity of the plug, which can not only improve the service life of the component, but also further ensure the balance and stability of the fluid pressure regulation. The ball head on the plug and the annular groove around the ball head can further equalize and slow down the pressure of the fluid flowing through, thereby improving the balance and stability of the fluid pressure at the liquid outlet.

[0012] 2. The glue dispensing pressure regulating valve of the photovoltaic glue dispensing processing of the present invention has an upper end of the push rod that is slidably matched with the guide seat and is connected to a piston rod, and the upper end of the piston rod that is connected to the push rod at the lower end is embedded in a driving cavity of a cylinder body and is connected to a piston disk horizontally arranged in the driving cavity. An air pipe joint is installed on the cylinder body and on the side of the piston disk opposite to the piston rod. The air pipe joint is connected to the driving cavity in the cylinder body through an air inlet channel. A pressure sensor is installed on the liquid inlet and the liquid outlet for real-time sensing of the liquid inlet pressure and the liquid outlet pressure, and the acquired pressure data is transmitted to a controller. The controller controls the air intake volume at the air pipe joint according to the received liquid inlet pressure and liquid outlet pressure. It can realize elastic adjustment of the spring tension by adjusting the air intake pressure at the air pipe joint, thereby adjusting the pressure of the fluid at the liquid outlet after pressure reduction and voltage stabilization, further meeting the demand for fluid pressure regulation and the consistency and stability of the fluid pressure at the liquid outlet. It can also adjust the air intake pressure at the air pipe joint in real time by real-time monitoring of the pressure values ​​at the liquid inlet and liquid outlet, thereby realizing real-time control and adjustment of the spring tension, further improving the stability and consistency of the liquid outlet pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a schematic diagram of the overall structure of the glue discharge pressure regulating valve of the present invention; Attached Figure 2 For attachment Figure 1 Schematic diagram of the cross section along AA; Attached Figure 3 For attachment Figure 2 The enlarged schematic diagram of the center C; Attached Figure 4 For attachment Figure 2 The enlarged schematic diagram of point D in the middle; Attached Figure 5 For attachment Figure 1 Schematic diagram of the cross section along BB.

[0014] In the above figures: 1, liquid inlet; 2, liquid outlet; 3, base; 301, main body; 302, upper sleeve; 303, lower sleeve; 4, guide seat; 401, mounting groove; 5, support seat; 51, first mounting hole; 61, upper cavity; 62, lower cavity; 71, first mounting seat; 72, second mounting seat; 8, connecting rod; 81, screw; 82, connecting sleeve; 9, ejector rod; 10, liquid inlet channel; 11, plug; 111, main body; 112, ball head; 113, column part; 114, flange; 115, annular groove; 12, spring; 13, liquid outlet channel; 14, connecting nozzle; 141, tube body; 142, annular part; 151, universal plug; 152, pressure ring; 153, first retaining ring; 16, threaded plug; 171, sealing ring; 172, second retaining ring; 18, piston rod; 19, cylinder body; 191, raised part; 20, drive chamber; 21, piston disc; 22, air pipe joint; 23, air inlet channel; 24, second mounting hole; 33, liquid outlet through hole. Implementation

[0015] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0016] Embodiment 1: A glue outlet pressure regulating valve, used in the glue processing of the frame of a photovoltaic module, comprising: a base 3 respectively provided with a liquid inlet 1 and a liquid outlet 2, the upper end of the base 3 is sealedly connected to a guide seat 4 and an upper cavity 61 is formed between the guide seat 4, the lower end of the base 3 is sealedly connected to a support seat 5 and a lower cavity 62 is formed between the support seat 5, a first mounting seat 71 is arranged in the upper cavity 61, and a second mounting seat 72 is arranged in the lower cavity 62, and the first mounting seat 71 and the second mounting seat 72 can both be moved in the vertical direction The guide seat 4 is connected to the guide seat 4 by a connecting rod 8 passing through the base 3, the lower end of a vertically extending push rod 9 is connected to the first mounting seat 71, the upper end of the push rod 9 slidingly matched with the guide seat 4 is connected to a piston rod 18, the upper end of the piston rod 18 connected with the push rod 9 at the lower end is embedded in a driving chamber 20 of a cylinder body 19 and connected to a piston disc 21 horizontally arranged in the driving chamber 20, and an air pipe joint 22 is installed on the cylinder body 19 and on the side of the piston disc 21 opposite to the piston rod 18, and the air pipe joint 22 is connected to the driving chamber 20 in the cylinder body 19 through an air inlet channel 23; A liquid inlet channel 10 is provided in the base 3, and the lower end of the liquid inlet channel 10, whose upper end is connected with the liquid inlet port 1, is connected with the lower cavity 62 and is installed with a connecting nozzle 14, and a plug 11 is provided between the connecting nozzle 14 and the second mounting seat 72 located in the lower cavity 62, and the tube body 141 of the connecting nozzle 14 is embedded in the liquid inlet channel 10, and a plurality of liquid outlet holes 25 are provided on the outer surface of the annular portion 142 of the connecting nozzle 14, which is located below the tube body 141 and has an inner diameter greater than that of the tube body 141, and the plug 11 includes: a main body 111 that can be slidably embedded in the annular portion 142, a ball head 112 formed in the center of the upper surface of the main body 111 and can be embedded in the tube body 141, and a columnar portion 113 extending downward from the center of the lower surface of the main body 111, and the main body 11 The upper surface of the plug 11 has an annular groove 115 opened around the ball head 112, the column part 113 is embedded in the second mounting hole 24 opened on the upper surface of the second mounting seat 72 and is matched with the inner wall gap of the second mounting hole 24, the main body 111 and below the connecting nozzle 14 has a flange 114 radially outward, the lower surface of the flange 114 is in contact with the upper surface of the second mounting seat 72, and a spring 12 in a compressed state is vertically arranged between the lower surface of the second mounting seat 72 and the support seat 5. When in a non-liquid-injecting state, the ball head 112 of the plug 11 is sealed with the tube body 141 of the connecting nozzle 14, and a liquid outlet channel 13 connecting the lower cavity 62 and the liquid outlet 2 is arranged on the base 3 and located on the side of the liquid inlet channel 10 opposite to the liquid inlet port 1; By opening and closing the ball head on the plug and the tube body of the connecting nozzle, the fluid entering from the liquid inlet with a certain pressure flows through the liquid inlet channel and the lower cavity in turn, and is output from the liquid outlet with a smaller pressure, and the balance and stability of the output fluid pressure can be improved. By setting the floating plug, adaptive coaxial adjustment between the reciprocating telescopic plug and the liquid inlet channel can be achieved to avoid force disturbance caused by the eccentricity of the plug, which can not only improve the service life of the component, but also further ensure the balance and stability of the fluid pressure regulation. The ball head on the plug and the annular groove around the ball head can further equalize and slow down the pressure of the fluid flowing through, thereby improving the balance and stability of the fluid pressure at the liquid outlet.

[0017] The inner wall of the annular groove 115 is an arc-shaped surface.

[0018] There are four liquid outlet holes 25 arranged at intervals along the circumferential direction.

[0019] The ball head 112 is configured to be hemispherical.

[0020] The upper end of the liquid outlet channel 13, whose lower end is connected to the lower cavity 62, is connected to the upper cavity 61, and the upper cavity provides further buffering and static pressure space for the decompressed liquid. On the basis of achieving liquid pressure, the balance and stability of the liquid pressure finally discharged from the liquid outlet are improved.

[0021] The inner wall of the upper portion of the tube body 141 of the connecting nozzle 14 is in an open cone shape.

[0022] A pressure sensor is installed on the above-mentioned liquid inlet 1 and liquid outlet 2, which is used to sense the liquid inlet pressure of the liquid inlet 1 and the liquid outlet pressure of the liquid outlet 2 in real time, and transmit the acquired pressure data to a controller, and the controller controls the air intake at the air pipe joint 22 according to the received liquid inlet pressure and liquid outlet pressure.

[0023] The upper surface of the guide seat 4 is provided with a mounting groove 401 , the lower surface center of the cylinder body 19 has a protrusion 191 embedded in the mounting groove 401 , and the connection between the push rod 9 and the piston rod 18 is located in the area surrounded by the protrusion 191 and the mounting groove 401 .

[0024] The base 3 further comprises: a main body 301 provided with a liquid inlet 1 and a liquid outlet 2 , an upper sleeve 302 connected to the guide seat 4 , and a lower sleeve 303 connected to the support seat 5 .

[0025] The lower end of the guide seat 4 with the upper cavity groove and the upper end of the support seat 5 with the lower cavity groove are respectively embedded in the upper sleeve part 302 and the lower sleeve part 303, and a sealing ring 171 is provided between the inner walls of the upper sleeve part 302 and the lower sleeve part 303 and the outer surfaces of the guide seat 4 and the support seat 5.

[0026] Embodiment 2: A glue discharging pressure regulating valve, comprising: a base 3 provided with a liquid inlet 1 and a liquid outlet 2, the upper end of the base 3 is sealedly connected to a guide seat 4 and an upper cavity 61 is formed between the guide seat 4, the lower end of the base 3 is sealedly connected to a support seat 5 and a lower cavity 62 is formed between the support seat 5, a first mounting seat 71 is arranged in the upper cavity 61, a second mounting seat 72 is arranged in the lower cavity 62, and a through-base is passed between the first mounting seat 71 and the second mounting seat 72, both of which can move in the vertical direction. 3, the lower end of a vertically extending push rod 9 is connected to the first mounting seat 71, the upper end of the push rod 9 slidably matched with the guide seat 4 is connected to a piston rod 18, the upper end of the piston rod 18 connected with the push rod 9 at the lower end is embedded in a driving chamber 20 of a cylinder body 19 and connected to a piston disc 21 horizontally arranged in the driving chamber 20, an air pipe joint 22 is installed on the cylinder body 19 and on the side of the piston disc 21 opposite to the piston rod 18, and the air pipe joint 22 is connected to the driving chamber 20 in the cylinder body 19 through an air inlet channel 23; A liquid inlet channel 10 is provided in the base 3, and the lower end of the liquid inlet channel 10, whose upper end is connected with the liquid inlet port 1, is connected with the lower cavity 62 and is installed with a connecting nozzle 14, and a plug 11 is provided between the connecting nozzle 14 and the second mounting seat 72 located in the lower cavity 62, and the tube body 141 of the connecting nozzle 14 is embedded in the liquid inlet channel 10, and a plurality of liquid outlet holes 25 are provided on the outer surface of the annular portion 142 of the connecting nozzle 14, which is located below the tube body 141 and has an inner diameter greater than that of the tube body 141, and the plug 11 includes: a main body 111 that can be slidably embedded in the annular portion 142, a ball head 112 formed in the center of the upper surface of the main body 111 and can be embedded in the tube body 141, and a columnar portion 113 extending downward from the center of the lower surface of the main body 111, and the main body 11 1 has an annular groove 115 around the ball head 112, the column portion 113 is embedded in the second mounting hole 24 formed on the upper surface of the second mounting seat 72 and is matched with the inner wall clearance of the second mounting hole 24, the main body 111 is provided with a radially outward flange 114 below the connecting nozzle 14, the lower surface of the flange 114 is in contact with the upper surface of the second mounting seat 72, a spring 12 in a compressed state is vertically arranged between the lower surface of the second mounting seat 72 and the support seat 5, when in a non-liquid-injecting state, the ball head 112 of the plug 11 is sealed with the tube body 141 of the connecting nozzle 14, and a liquid outlet channel 13 connecting the lower cavity 62 and the liquid outlet 2 is arranged on the base 3 and located on the side of the liquid inlet channel 10 opposite to the liquid inlet port 1.

[0027] The inner wall of the annular groove 115 is a hemispherical surface.

[0028] The ball head 112 is configured to be hemispherical.

[0029] The upper surface of the guide seat 4 is provided with a mounting groove 401 , the lower surface center of the cylinder body 19 has a protrusion 191 embedded in the mounting groove 401 , and the connection between the push rod 9 and the piston rod 18 is located in the area surrounded by the protrusion 191 and the mounting groove 401 .

[0030] The base 3 further comprises: a main body 301 provided with a liquid inlet 1 and a liquid outlet 2 , an upper sleeve 302 connected to the guide seat 4 , and a lower sleeve 303 connected to the support seat 5 .

[0031] A second retaining ring 172 is disposed on the upper and lower sides of each sealing ring 171 .

[0032] There are two connecting rods 8 , and the two connecting rods 8 are connected to the ends of the first mounting seat 71 and the second mounting seat 72 , respectively.

[0033] The connecting rod 8 further includes a screw rod 81 passing through the first mounting seat 71 and the second mounting seat 72 in sequence, and a connecting sleeve 82 sleeved on the screw rod 81 and located between the first mounting seat 71 and the second mounting seat 72 .

[0034] The guide seat 4 and the ejector rod 9 are sealed and connected via at least one universal seal ring 151 .

[0035] There are two Variseal rings 151 , and a pressure ring 152 and a first retaining ring 153 are stacked in sequence below the two stacked Variseal rings 151 .

[0036] The above-mentioned universal seal ring 151, pressure ring 152 and retaining ring 153 are each sleeved on the push rod 9 and tightly matched with the inner wall of the guide seat 4.

[0037] A first mounting hole 51 communicating with the lower cavity 62 is provided on the lower surface of the support seat 5 , and the lower end of the spring 12 is embedded in the first mounting hole 51 and is pressed into contact with the threaded plug 16 installed in the first mounting hole 51 .

[0038] The threaded plug 16 with external threads is threadedly connected to the inner wall of the lower end of the first mounting hole 51 .

[0039] The working principle is: The force of the second mounting seat acting on the spring is adjusted by the push rod, thereby adjusting the reverse tension of the spring; When the liquid inlet pressure is less than the tension of the spring, the plug is sealed and connected to the outlet at the lower end of the liquid inlet channel. When the tension of the adjusted spring is less than the liquid inlet pressure, the fluid entering from the liquid inlet drives the plug to move toward the spring and forms a fluid channel between the plug and the liquid inlet channel to allow the fluid to enter the lower cavity. In this process, the fluid pressure is lowered and the pressure is equalized and stabilized in the lower cavity, and finally the fluid is output from the liquid outlet. The upper and lower cavities are further connected through the liquid outlet channel to increase the buffer space of the fluid after decompression, thereby further improving the balance and stability of the fluid pressure output from the liquid outlet while reducing the pressure.

[0040] The above-mentioned automatic pressure-stabilizing valve is adopted, through the opening and closing between the ball head on the plug and the tube body of the connecting nozzle, the fluid entering from the liquid inlet with a certain pressure flows through the liquid inlet channel and the lower cavity in sequence and is output from the liquid outlet with a smaller pressure, and the balance and stability of the output fluid pressure can be improved. Moreover, through the floating setting of the plug, the adaptive coaxial adjustment between the reciprocating telescopic plug and the liquid inlet channel can be realized, and the force disturbance caused by the eccentricity of the plug can be avoided, which can not only improve the service life of the component, but also further ensure the balance and stability of the fluid pressure regulation. The ball head on the plug and the annular groove around the ball head can further equalize and slow down the pressure of the fluid flowing through, thereby improving the balance and stability of the pressure of the fluid at the liquid outlet. Furthermore, the elastic adjustment of the spring tension can be achieved by adjusting the air intake pressure at the air pipe joint, thereby adjusting the pressure of the fluid at the liquid outlet after pressure reduction and stabilization, further meeting the demand for fluid pressure regulation and the consistency and stability of the fluid pressure at the liquid outlet, and the air intake pressure at the air pipe joint can be adjusted in real time by real-time monitoring of the pressure values ​​at the liquid inlet and outlet, thereby achieving real-time control and adjustment of the spring tension, further improving the stability and consistency of the outlet pressure.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A glue dispensing pressure regulating valve for photovoltaic glue dispensing processing, comprising: A base (3) provided with a liquid inlet (1) and a liquid outlet (2), characterized in that: the upper end of the base (3) is sealedly connected to a guide seat (4) and an upper cavity (61) is formed between the guide seat (4); the lower end of the base (3) is sealedly connected to a support seat (5) and a lower cavity (62) is formed between the support seat (5); a first mounting seat (71) is provided in the upper cavity (61); a second mounting seat (72) is provided in the lower cavity (62); and a connecting rod (8) passing through the base (3) is provided between the first mounting seat (71) and the second mounting seat (72), both of which are movable in the vertical direction. The lower end of a vertically extending push rod (9) is connected to the first mounting seat (71), the upper end of the push rod (9) slidably matched with the guide seat (4) is connected to a piston rod (18), the upper end of the piston rod (18) whose lower end is connected to the push rod (9) is embedded in a drive chamber (20) of a cylinder body (19) and connected to a piston disc (21) horizontally arranged in the drive chamber (20), and an air pipe joint (22) is installed on the cylinder body (19) and located on the side of the piston disc (21) opposite to the piston rod (18), and the air pipe joint (22) is connected to the drive chamber (20) in the cylinder body (19) through an air inlet passage (23); The base (3) is provided with a liquid inlet channel (10), the lower end of the liquid inlet channel (10) being connected with the liquid inlet port (1) at the upper end being connected with the lower cavity (62) and being provided with a connecting nozzle (14), a plug (11) being provided between the connecting nozzle (14) and a second mounting seat (72) located in the lower cavity (62), the tube body (141) of the connecting nozzle (14) being embedded in the liquid inlet channel (10), the outer surface of the annular portion (142) of the connecting nozzle (14) being located below the tube body (141) and having an inner diameter larger than that of the tube body (141) being provided with a plurality of liquid outlet through holes (25), the plug (11) comprising: a main body portion (111) being slidably embedded in the annular portion (142) 1) a ball head portion (112) formed at the center of the upper surface of the main body portion (111) and capable of being embedded in the tube portion (141), and a column portion (113) extending downward from the center of the lower surface of the main body portion (111), the upper surface of the main body portion (111) having an annular groove (115) surrounding the ball head portion (112), the column portion (113) being embedded in a second mounting hole (24) formed on the upper surface of the second mounting seat (72) and being gap-matched with the inner wall of the second mounting hole (24), the main body portion (111) having a radially outward flange (114) located below the connecting nozzle (14), the lower surface of the flange (114) being in contact with the upper surface of the second mounting seat (72); A spring (12) in a compressed state is vertically arranged between the lower surface of the second mounting seat (72) and the support seat (5); a first mounting hole (51) communicating with the lower cavity (62) is provided on the lower surface of the support seat (5); the lower end of the spring (12) is embedded in the first mounting hole (51) and is in compression contact with a threaded plug (16) installed in the first mounting hole (51); when in a non-liquid-injecting state, the ball head (112) of the plug (11) is sealed with the tube body (141) of the connecting nozzle (14); and a liquid outlet channel (13) communicating with the lower cavity (62) and the liquid outlet (2) is provided on the base (3) and located on the side of the liquid inlet channel (10) opposite to the liquid inlet port (1).

2. The glue dispensing pressure regulating valve for photovoltaic glue dispensing processing according to claim 1 is characterized in that: The threaded plug (16) having an external thread is threadedly connected to the inner wall of the lower end of the first mounting hole (51).

3. The glue dispensing pressure regulating valve for photovoltaic glue dispensing processing according to claim 1 is characterized in that: A pressure sensor is installed on each of the liquid inlet (1) and the liquid outlet (2) for sensing the liquid inlet pressure of the liquid inlet (1) and the liquid outlet pressure of the liquid outlet (2) in real time, and transmitting the acquired pressure data to a controller, wherein the controller controls the air intake at the air pipe joint (22) according to the received liquid inlet pressure and liquid outlet pressure.

4. The glue dispensing pressure regulating valve for photovoltaic glue dispensing processing according to claim 1 is characterized in that: The upper surface of the guide seat (4) is provided with a mounting groove (401), the center of the lower surface of the cylinder body (19) is provided with a raised portion (191) embedded in the mounting groove (401), and the connection between the push rod (9) and the piston rod (18) is located in the area enclosed by the raised portion (191) and the mounting groove (401).

5. The glue discharging pressure regulating valve for photovoltaic glue dispensing processing according to claim 4 is characterized in that: The base (3) further comprises: a main body (301) provided with a liquid inlet (1) and a liquid outlet (2), an upper sleeve (302) connected to the guide seat (4), and a lower sleeve (303) connected to the support seat (5).

6. The glue dispensing pressure regulating valve for photovoltaic glue dispensing processing according to claim 5 is characterized by: The lower end of the guide seat (4) having an upper cavity groove and the upper end of the support seat (5) having a lower cavity groove are respectively embedded in the upper sleeve portion (302) and the lower sleeve portion (303), and a sealing ring (171) is provided between the inner walls of the upper sleeve portion (302) and the lower sleeve portion (303) and the outer surfaces of the guide seat (4) and the support seat (5).

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