Continuous dispensing mechanism for photovoltaic glass

Abstract

The utility model discloses a continuous dispensing mechanism for photovoltaic glass, which comprises a metering pump respectively connected with a glue supply unit, a dispensing valve and the dispensing valve, a switching block is arranged below the metering pump, an L-shaped liquid inlet flow channel is communicated with a glue supply block, an L-shaped liquid outlet flow channel is communicated with a glue inlet on the dispensing valve through a connecting block, and the L-shaped liquid outlet flow channel is communicated with a glue outlet on the dispensing valve through the connecting block. At least one heating pipe is embedded in each of the switching block, the glue supply block and the connecting block, a glue inlet pressure sensor is mounted on the glue supply block, a glue outlet pressure sensor is mounted on the switching block, and a plurality of metal fins are arranged on the outer sides of the ends, close to the sensing unit, of bodies of the glue inlet pressure sensor and the glue outlet pressure sensor. On the basis that glue is metered and pressurized, hot melt glue can be selected to shorten the curing time after dispensing, real-time heating can be carried out to ensure the fluidity of the hot melt glue, pressure can be monitored in real time to avoid the situation that the glue supply pressure is abnormal, and damage to a sensor caused by high temperature is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing, in particular to a continuous glue dispensing mechanism for photovoltaic glass. Background Art

[0002] In the field of photovoltaic curtain wall processing, the existing technology generally uses liquid glue (silicone) at room temperature. The natural curing time of the glue is long (10 to 20 hours), and the photovoltaic glass itself has a large area, so the glue curing process requires a large production space and low production efficiency. Hot melt adhesive is a plastic adhesive. Its physical state changes with the change of temperature within a certain temperature range, while its chemical properties remain unchanged. It is not only environmentally friendly, but also can solidify quickly after stopping the heat.

[0003] The existing technology usually uses liquid glue at room temperature in the processing of photovoltaic curtain walls, which has a slow curing speed and causes waste of workshop area. However, after replacing the hot melt adhesive, the hot melt adhesive cannot be heated during the entire dispensing process, and the fluidity of the hot melt adhesive cannot be guaranteed, which easily affects the accuracy and effect of dispensing. In addition, the glue pressure cannot be monitored in real time, and problems may easily occur due to abnormal pressure. In addition, during heating, high temperature may easily damage the sensor. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a continuous dispensing mechanism for photovoltaic glass, which can use hot melt glue to shorten the curing time after dispensing, and can perform real-time heating to ensure the fluidity of the hot melt glue, and can also monitor the pressure in real time to avoid abnormal glue supply pressure, and effectively avoid damage to the sensor caused by high temperature.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a continuous dispensing mechanism for photovoltaic glass, comprising: a metering pump connected to a glue supply unit and a dispensing valve respectively, the liquid inlet of the metering pump is connected to the glue supply unit, the glue inlet on the dispensing valve is connected to the liquid outlet of the metering pump, a transfer block is arranged below the metering pump, and an L-shaped liquid inlet flow channel and an L-shaped liquid outlet flow channel are respectively provided on the transfer block, one end of the L-shaped liquid inlet flow channel connected with the liquid inlet of the metering pump extends to one side surface of the transfer block and is connected to a glue supply flow channel on a glue supply block, one end of the glue supply flow channel away from the L-shaped liquid inlet flow channel is connected to the glue supply unit through a glue supply hose, and the other end of the L-shaped liquid outlet flow channel connected with the liquid outlet of the metering pump extends to another side surface of the transfer block and is connected to the glue inlet on the dispensing valve through a connecting block with a connecting flow channel, and at least one heating pipe is embedded and installed on each of the transfer block, the glue supply block and the connecting block;

[0006] An inlet glue pressure sensor is installed on the glue supply block, and an outlet glue pressure sensor is installed on the adapter block. Both the inlet glue pressure sensor and the outlet glue pressure sensor include a body, a sensing unit located at one end of the body, and a control unit located at the other end of the body. The sensing unit of the inlet glue pressure sensor is communicated with the glue supply flow channel through a pipeline, and the sensing unit of the outlet glue pressure sensor is communicated with one end of the L-shaped liquid outlet flow channel close to the connection block through a pipeline. A plurality of metal fins are arranged on the outer side of the body of the inlet glue pressure sensor and the outlet glue pressure sensor close to the sensing unit end.

[0007] The further improved solutions in the above technical solutions are as follows:

[0008] 1. In the above solution, the metal fins are annular fins.

[0009] 2. In the above solution, the adapter block, the glue supply block and the connection block are all metal blocks.

[0010] 3. In the above solution, the adapter block, the glue supply block and the connection block are all stainless steel blocks.

[0011] 4. In the above solution, the adapter block and the glue supply block are connected by a bottom substrate.

[0012] 5. In the above solution, a heating tube is embedded and installed on the adapter block and the connection block, and a heating tube is respectively embedded and installed on both sides of the L-shaped inlet liquid flow channel and the L-shaped outlet liquid flow channel on the glue supply block.

[0013] 6. In the above solution, a temperature sensor is installed on one side of the heating tube on the adapter block.

[0014] Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art:

[0015] The continuous glue - dispensing mechanism for the photovoltaic glass of the present utility model is provided with an adapter block below the metering pump. An L - shaped liquid - inlet flow channel and an L - shaped liquid - outlet flow channel are respectively opened on the adapter block. The other end of the L - shaped liquid - inlet flow channel, whose one end is communicated with the liquid - inlet of the metering pump, extends to one side surface of the adapter block and is communicated with the glue - supply flow channel on a glue - supply block. The other end of the glue - supply flow channel far from the L - shaped liquid - inlet flow channel is connected to the glue - supply unit through a glue - supply pipe. The other end of the L - shaped liquid - outlet flow channel, whose one end is communicated with the liquid - outlet of the metering pump, extends to the other side surface of the adapter block and is communicated with the glue - inlet of the glue - dispensing valve through a connection block provided with a communication flow channel. At least one heating tube is respectively embedded and installed on the adapter block, the glue - supply block and the connection block. A glue - inlet pressure sensor is installed on the glue - supply block, and a glue - outlet pressure sensor is installed on the adapter block. Both the glue - inlet pressure sensor and the glue - outlet pressure sensor include a body, a sensing unit located at one end of the body and a control unit located at the other end of the body. The sensing unit of the glue - inlet pressure sensor is communicated with the glue - supply flow channel through a pipeline, and the sensing unit of the glue - outlet pressure sensor is communicated with one end of the L - shaped liquid - outlet flow channel close to the connection block through a pipeline. A plurality of metal fins are arranged on the outside of the body of the glue - inlet pressure sensor and the glue - outlet pressure sensor near the sensing unit end. On the basis of realizing the metering and pressurization of the glue, hot - melt glue can be selected to shorten the curing time after glue - dispensing, thereby saving the workshop area occupied in the process of photovoltaic glass processing. Moreover, the glue can be heated in real - time during the whole process of supplying glue to the glue - dispensing valve to ensure the fluidity of the hot - melt glue, so as to ensure the accuracy and effect of glue - dispensing. In addition, the inlet and outlet pressures of the metering pump can be monitored in real - time to avoid abnormal supply - glue pressures caused by glue - path blockages and other situations, and the situation of damaging the sensor due to too high glue - liquid temperature can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG Figure 1 is a schematic structural diagram of the continuous glue - dispensing mechanism for the photovoltaic glass of the present utility model;

[0017] FIG Figure 2 is a partial structural cross - sectional view of the present utility model FIG Figure 1 ;

[0018] FIG Figure 3 is a partial structural schematic diagram of the continuous glue - dispensing mechanism for the photovoltaic glass of the present utility model;

[0019] FIG Figure 4 is a partial structural cross - sectional view of the present utility model FIG Figure 3 ;

[0020] In the above drawings: 1. Glue inlet pressure sensor; 2. Glue outlet pressure sensor; 3. Body; 4. Sensing unit; 5. Glue inlet; 6. Control unit; 7. Metal fins; 8. Metering pump; 81. Liquid inlet; 82. Liquid outlet; 9. Dispensing valve; 10. Adapter block; 11. L-shaped liquid inlet channel; 12. L-shaped liquid outlet channel; 13. Glue supply block; 131. Glue supply channel; 14. Glue supply pipe; 15. Connecting block; 151. Connecting channel; 16. Heating tube; 17. Bottom substrate; 18. Temperature sensor. Detailed implementation mode

[0021] The present patent can be further clearly understood through the following specific embodiments, but they do not limit the present patent.

[0022] Embodiment 1: A continuous dispensing mechanism for photovoltaic glass, comprising: a metering pump 8 respectively connected to a glue supply unit and a dispensing valve 9, the liquid inlet 81 of the metering pump 8 is connected to the glue supply unit, the glue inlet 5 on the dispensing valve 9 is connected to the liquid outlet 82 of the metering pump 8, a transfer block 10 is arranged below the metering pump 8, an L-shaped liquid inlet channel 11 and an L-shaped liquid outlet channel 12 are respectively formed on the transfer block 10, the other end of the L-shaped liquid inlet channel 11 communicated with the liquid inlet 81 of the metering pump 8 extends to a side surface of the transfer block 10 and is communicated with a glue supply channel 131 on a glue supply block 13, the other end of the glue supply channel 131 away from the L-shaped liquid inlet channel 11 is connected to the glue supply unit through a glue supply pipe 14, the other end of the L-shaped liquid outlet channel 12 communicated with the liquid outlet 82 of the metering pump 8 extends to another side surface of the transfer block 10 and is communicated with the glue inlet 5 on the dispensing valve 9 through a connecting block 15 provided with a connecting channel 151, and at least one heating tube 16 is respectively embedded and installed on the transfer block 10, the glue supply block 13 and the connecting block 15;

[0023] Through an external glue supply unit, such as a pressure plate pump, etc., the hot melt glue with fluidity after high-temperature treatment is injected into the inlet of the glue supply channel on the glue supply block, the glue enters the liquid inlet of the metering pump through the L-shaped liquid inlet channel, then passes through the L-shaped liquid outlet channel from the liquid outlet of the metering pump and finally enters the dispensing valve through the connecting channel on the connecting block;

[0024] A glue supply block 13 is provided with a glue inlet pressure sensor 1, and an adapter block 10 is provided with a glue outlet pressure sensor 2. Both the glue inlet pressure sensor 1 and the glue outlet pressure sensor 2 include a body 3, a sensing unit 4 located at one end of the body 3, and a control unit 6 located at the other end of the body 3. The sensing unit 4 of the glue inlet pressure sensor 1 is communicated with a glue supply channel 131 through a pipeline. The sensing unit 4 of the glue outlet pressure sensor 2 is communicated with one end of an L-shaped liquid outlet channel 12 close to a connection block 15 through a pipeline. A plurality of metal fins 7 are arranged on the outer side of the body 3 of the glue inlet pressure sensor 1 and the glue outlet pressure sensor 2 close to the sensing unit 4;

[0025] The glue inlet and outlet pressures of the metering pump are monitored in real time by two pressure sensors to avoid abnormal glue supply pressure caused by glue path blockage and other situations. Metal fins are arranged between the sensing unit and the control unit of the pressure sensor to timely dissipate the temperature conducted from the high-temperature glue liquid to avoid damage or malfunction of the control unit caused by high-temperature interference.

[0026] The above-mentioned metal fins 7 are annular fins.

[0027] The above-mentioned adapter block 10, glue supply block 13 and connection block 15 are all stainless steel blocks.

[0028] The adapter block 10 and the glue supply block 13 are connected by a bottom substrate 17.

[0029] An electric heating tube 16 is embedded and installed on the adapter block 10 and the connection block 15. An electric heating tube 16 is respectively embedded and installed on both sides of the L-shaped liquid inlet channel 11 and the L-shaped liquid outlet channel 12 on the glue supply block 13.

[0030] Embodiment 2: A continuous dispensing mechanism for photovoltaic glass, comprising: a metering pump 8 respectively connected to a glue supply unit and a dispensing valve 9. The liquid inlet 81 of the metering pump 8 is connected to the glue supply unit. The glue inlet 5 on the dispensing valve 9 is connected to the liquid outlet 82 of the metering pump 8. A transfer block 10 is arranged below the metering pump 8. An L-shaped liquid inlet channel 11 and an L-shaped liquid outlet channel 12 are respectively formed on the transfer block 10. The other end of the L-shaped liquid inlet channel 11, one end of which is communicated with the liquid inlet 81 of the metering pump 8, extends to one side surface of the transfer block 10 and is communicated with a glue supply channel 131 on a glue supply block 13. The other end of the glue supply channel 131 away from the L-shaped liquid inlet channel 11 is connected to the glue supply unit through a glue supply pipe 14. The other end of the L-shaped liquid outlet channel 12, one end of which is communicated with the liquid outlet 82 of the metering pump 8, extends to the other side surface of the transfer block 10 and is communicated with the glue inlet 5 on the dispensing valve 9 through a connection block 15 provided with a communication channel 151. At least one electric heating tube 16 is respectively embedded and installed on the transfer block 10, the glue supply block 13 and the connection block 15;

[0031] During the whole process of glue flow, the glue is continuously heated by the heating tubes in each metal block to ensure that the hot melt adhesive always maintains a relatively high temperature (about 150 °C), so as to ensure the fluidity of the glue.

[0032] An inlet glue pressure sensor 1 is installed on the glue supply block 13, and an outlet glue pressure sensor 2 is installed on the adapter block 10. Both the inlet glue pressure sensor 1 and the outlet glue pressure sensor 2 include a body 3, a sensing unit 4 located at one end of the body 3, and a control unit 6 located at the other end of the body 3. The sensing unit 4 of the inlet glue pressure sensor 1 is communicated with the glue supply channel 131 through a pipeline, and the sensing unit 4 of the outlet glue pressure sensor 2 is communicated with one end of the L-shaped liquid outlet channel 12 close to the connection block 15 through a pipeline. A plurality of metal fins 7 are arranged on the outer side of the body 3 of the inlet glue pressure sensor 1 and the outlet glue pressure sensor 2 close to the sensing unit 4.

[0033] The above-mentioned metal fins 7 are annular fins.

[0034] The above-mentioned adapter block 10, glue supply block 13 and connection block 15 are all metal blocks.

[0035] The above-mentioned adapter block 10 and the glue supply block 13 are connected by a bottom substrate 17.

[0036] A heating tube 16 is embedded and installed on the above-mentioned adapter block 10 and the connection block 15, and a heating tube 16 is respectively embedded and installed on both sides of the L-shaped inlet liquid channel 11 and the L-shaped outlet liquid channel 12 on the glue supply block 13.

[0037] A temperature sensor 18 is installed on the above-mentioned adapter block 10 on one side of the heating tube 16.

[0038] The working principle of the present utility model is as follows:

[0039] Through an external glue supply unit, such as a pressure plate pump, etc., the hot melt adhesive with fluidity after high-temperature treatment is injected from the inlet of the glue supply channel on the glue supply block. The glue enters the inlet of the metering pump through the L-shaped inlet liquid channel, and then passes through the L-shaped outlet liquid channel from the outlet of the metering pump and finally enters the dispensing valve through the communication channel on the connection block. During the whole process of the above glue flow, the glue is continuously heated by the heating tubes in each metal block to ensure that the hot melt adhesive always maintains a relatively high temperature (about 150 °C), so as to ensure the fluidity of the glue. The metering pump is obtained by outsourcing and is mainly used for metering and increasing, which does not belong to the inventive point of this patent and will not be elaborated here.

[0040] The glue inlet and outlet pressures of the metering pump are monitored in real time through two pressure sensors to avoid abnormal supply glue pressures caused by glue path blockages and other situations. A metal fin is arranged between the sensing unit and the control unit of the pressure sensor to timely dissipate the temperature conducted from the high-temperature glue to avoid damage or malfunction of the control unit caused by high-temperature interference.

[0041] When the above-mentioned continuous dispensing mechanism for photovoltaic glass is adopted, on the basis of realizing the metering and pressurization of the glue, it can either select hot-melt glue to shorten the curing time after dispensing, thereby saving the workshop area occupied during the processing of photovoltaic glass, or heat the glue in real time throughout the process of supplying glue to the dispensing valve to ensure the fluidity of the hot-melt glue, thus ensuring the dispensing accuracy and effect. It can also monitor the glue inlet and outlet pressures of the metering pump in real time to avoid abnormal supply glue pressures caused by glue path blockages and other situations, and can effectively avoid damage to the sensor due to excessive glue temperature.

[0042] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly, and should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A continuous dispensing mechanism for photovoltaic glass, comprising: A metering pump (8) connected to a glue supply unit and a glue dispensing valve (9) respectively, wherein a liquid inlet (81) of the metering pump (8) is connected to the glue supply unit, and a glue inlet (5) on the glue dispensing valve (9) is connected to a liquid outlet (82) of the metering pump (8), characterized in that: a transfer block (10) is provided below the metering pump (8), and an L-shaped liquid inlet channel (11) and an L-shaped liquid outlet channel (12) are respectively provided on the transfer block (10), and the other end of the L-shaped liquid inlet channel (11) connected to the liquid inlet (81) of the metering pump (8) extends to a side surface of the transfer block (10) and is connected to a glue supply unit. The glue supply channel (131) on the glue block (13) is connected, one end of the glue supply channel (131) away from the L-shaped liquid inlet channel (11) is connected to the glue supply unit through a glue supply pipe (14), the other end of the L-shaped liquid outlet channel (12) one end of which is connected to the liquid outlet (82) of the metering pump (8) extends to the other side surface of the adapter block (10) and is connected to the glue inlet (5) on the glue dispensing valve (9) through a connecting block (15) provided with a connecting channel (151), and at least one heating tube (16) is embedded and installed on each of the adapter block (10), the glue supply block (13) and the connecting block (15); A glue inlet pressure sensor (1) is mounted on the glue supply block (13), and a glue outlet pressure sensor (2) is mounted on the adapter block (10). The glue inlet pressure sensor (1) and the glue outlet pressure sensor (2) both comprise a body (3), a sensing unit (4) located at one end of the body (3), and a control unit (6) located at the other end of the body (3). The sensing unit (4) of the glue inlet pressure sensor (1) is connected to the glue supply flow channel (131) via a pipeline, and the sensing unit (4) of the glue outlet pressure sensor (2) is connected to one end of the L-shaped liquid outlet flow channel (12) close to the connection block (15) via a pipeline. A plurality of metal fins (7) are arranged on the outer side of one end of the body (3) of the glue inlet pressure sensor (1) and the glue outlet pressure sensor (2) close to the sensing unit (4).

2. The continuous dispensing mechanism for photovoltaic glass according to claim 1, characterized in that: The metal fin (7) is an annular fin.

3. The continuous dispensing mechanism for photovoltaic glass according to claim 1, characterized in that: The adapter block (10), the glue supply block (13) and the connection block (15) are all metal blocks.

4. The continuous dispensing mechanism for photovoltaic glass according to claim 1, characterized in that: The transfer block (10), the glue supply block (13) and the connection block (15) are all stainless steel blocks.

5. The continuous dispensing mechanism for photovoltaic glass according to claim 1, characterized in that: The adapter block (10) and the glue supply block (13) are connected via a bottom substrate (17).

6. The continuous dispensing mechanism for photovoltaic glass according to claim 1, characterized in that: A heating tube (16) is embedded and installed on the adapter block (10) and the connection block (15), and a heating tube (16) is embedded and installed on both sides of the L-shaped liquid inlet flow channel (11) and the L-shaped liquid outlet flow channel (12) on the glue supply block (13).

7. The continuous dispensing mechanism for photovoltaic glass according to claim 1, characterized in that: A temperature sensor (18) is installed on the adapter block (10) and located on one side of the heating tube (16).

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