Dispensing valve heater

Abstract

The utility model discloses a dispensing valve heater, which belongs to the technical field of dispensing valve heating and comprises a support, a valve body, a glue injection port, a spray needle, a positioning head and an adjusting ejector pin, the valve body is mounted at the lower end of the support, the glue injection port is connected to the upper portion of the side wall of the valve body, and the spray needle is located at the lower end of the valve body. The heater lantern ring, the heat conduction type limiting strip and the temperature controller ensure that the valve body stably works within a proper temperature range. The heater lantern ring is directly installed on the lower portion of the side wall of the valve body for heating. The heat conduction type limiting strip surrounds the heater lantern ring and makes contact with the heat conduction type sinking groove of the clamp type water tank, and heat transfer is achieved. The temperature controller monitors the temperature of the heater lantern ring and the valve body, and the safety range is ensured. And the hoop type water tank is sleeved on the outer walls of the heater lantern ring and the temperature controller to form a hot water circulation loop. The heater lantern ring heats water in the hoop type water tank, hot water is conveyed to the circulating water tank through a pipeline, and the spray needle is heated through waste heat. And the hot water finally flows back to the hoop type water tank to finish circulation.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing valve heating, in particular to a glue dispensing valve heater. Background Art

[0002] Glue dispensing machine is also called glue coating machine, glue dripping machine, glue spraying machine, glue filling machine, etc. It is an automated machine that controls fluids and drips and applies fluids on the surface or inside of products.

[0003] After searching, it was found that the Chinese patent publication number CN208177745U disclosed a "dispensing valve nozzle heater", which includes a first heating part and a second heating part that cooperate with each other, and a first hoop. The first heating part and the second heating part are detachably connected, and the first heating part and the second heating part have the same structure. The first heating part and the second heating part cooperate to cover and heat the nozzle. The first heating part is fixedly mounted with a first elastic sleeve part, and the second heating part is fixedly mounted with a second elastic sleeve part. The first hoop sleeves the first elastic sleeve part and the second sleeve part on the glue bin, and the first heating part and the second heating part are provided with a heating cavity;

[0004] In industrial production, the role of the dispensing valve heater is crucial. It ensures that the glue is maintained at a suitable working temperature, thereby ensuring the stability of the dispensing process and the uniformity of the glue flow. However, a large amount of heat generated in this process is mainly dissipated through thermal radiation and convection, resulting in ineffective heat loss and energy waste. This wasted heat not only increases the company's operating costs, but may also affect the company's competitiveness. In order to maintain the normal operation of the production line, the company needs to continuously provide energy for the dispensing valve heater, but because the heat cannot be effectively recovered and utilized, part of the energy is wasted, increasing the company's energy expenses. Utility Model Content

[0005] The main purpose of the utility model is to provide a dispensing valve heater, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A dispensing valve heater comprises a bracket, a valve body, a glue injection port, a spray needle, a positioning head and an adjusting ejector pin, wherein the valve body is mounted at the lower end of the bracket, the glue injection port is connected to the upper part of the side wall of the valve body, the spray needle is located at the lower end of the valve body, the adjusting ejector pin is located at the upper end of the valve body, and the positioning head is located at the upper end of the adjusting ejector pin.

[0008] A heater collar and a thermostat are sleeved on the lower part of the side wall of the valve body, and the thermostat is connected to the heater collar through an electric wire and monitors the temperature of the heater collar and the valve body;

[0009] The outer wall of the heater collar is provided with a plurality of heat-conductive limit strips, and the outer walls of the heater collar and the thermostat are provided with a clamp-type water tank, and the side wall of the clamp-type water tank is provided with a heat-conductive sink groove adapted to the heat-conductive limit strips, the notch of the clamp-type water tank is fixed by connecting parts and fasteners, and the lower end of the clamp-type water tank is provided with an inlet pipe and a return pipe, and a circulating water tank is provided at the connection between the spray needle and the valve body, and the circulating water tank is connected with the inlet pipe and the return pipe to form a hot water circulation loop, and the spray needle is heated by waste heat.

[0010] In a further preferred embodiment, the heater collar is fixedly welded to the heat-conductive limiting strip, a plurality of heat-conductive limiting strips are annularly distributed on the heater collar, and the material of the heat-conductive limiting strips is a heat-conductive metal material;

[0011] In a further preferred embodiment, the clamp-type water tank is made of elastic metal, and the inner cavity of the clamp-type water tank is connected to the water inlet pipe and the water return pipe, the heat-conducting material is welded at the heat-conducting sink, and the contact end of the heat-conducting limit strip and the heat-conducting sink is coated with thermal grease;

[0012] In a further preferred embodiment, the connecting piece is divided into two square blocks and a circular hole, the circular hole is located on the two square blocks, and a bolt is inserted into the circular hole and then connected with a gasket and a nut;

[0013] In a further preferred embodiment, the contact end between the heater collar and the valve body is made of heat-conducting material, the thermostat is fixedly connected to the heater collar, and the outer shell of the thermostat is a heat-insulating shell;

[0014] In a further preferred embodiment, the circulating water tank is fixed to the valve body by a nut, and a micro water pump is provided on the side wall of the circulating water tank to circulate the hot water.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, the heater collar, the heat-conducting limit strip and the thermostat ensure that the valve body works stably within a suitable temperature. The heater collar is directly installed at the lower part of the side wall of the valve body for heating. The heat-conducting limit strip surrounds the heater collar and contacts the heat-conducting sink of the clamp-type water tank to achieve heat transfer. The thermostat monitors the temperature of the heater collar and the valve body to ensure a safe range.

[0017] In order to improve energy efficiency and dispensing quality, a waste heat utilization structure is added to the design. The clamp-type water tank is set on the outer wall of the heater collar and the thermostat to form a hot water circulation loop. The heater collar heats the water in the clamp-type water tank, and the hot water is transported to the circulating water tank through the pipeline, using the waste heat to heat the spray needle. The hot water eventually flows back to the clamp-type water tank to complete the cycle. This design is both energy-saving and environmentally friendly, improves the dispensing quality, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a diagram showing the overall structure of the utility model;

[0020] Figure 3 It is a display diagram of the valve body, heater sleeve, and clamp-type water tank of the utility model;

[0021] Figure 4 This is a display diagram of the heater collar, clamp-type water tank, pipeline and circulating water tank of the utility model.

[0022] In the figure: 1. bracket; 2. valve body; 3. injection port; 4. spray needle; 5. positioning head; 6. adjusting ejector pin; 7. heater collar; 8. thermal conductive limit strip; 9. thermostat; 10. clamp-type water tank; 11. thermal conductive sink; 12. connector; 13. water inlet pipe; 14. circulating water tank; 15. return water pipe. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 - Figure 4 As shown, a dispensing valve heater comprises the following components; a bracket 1 is used as the basic structure of the whole device to support other components; a valve body 2 is installed at the lower end of the bracket 1 and is the core part of the dispensing valve; a glue injection port 3 is connected to the upper part of the side wall of the valve body 2 and is used to inject glue; a spray needle 4 is located at the lower end of the valve body 2 and is responsible for spraying glue; a positioning head 5 is located at the upper end of an adjusting ejector pin 6 and provides a positioning function for the spray needle 4; the adjusting ejector pin 6 is located at the upper end of the valve body 2 and is used to adjust the position of the spray needle 4;

[0025] The heater collar 7 is sleeved on the lower part of the side wall of the valve body 2 to heat the valve body 2; a plurality of heat-conducting limit strips 8 are annularly distributed on the heater collar 7 and contact the heat-conducting sink 11 of the clamp-type water tank 10 to achieve heat conduction; the thermostat 9 is connected to the heater collar 7 through an electric wire to monitor the temperature of the heater collar 7 and the valve body 2 to ensure that they work within a suitable temperature range;

[0026] The clamp-type water tank 10 is sleeved on the outer wall of the heater collar 7 and the thermostat 9, and its side wall is provided with a heat-conducting sink 11 adapted to the heat-conducting limit strip 8; the heat-conducting sink 11 is in contact with the heat-conducting limit strip 8 to achieve heat conduction; the connecting piece 12 is divided into two square blocks and a circular hole, and is connected to the gasket and the nut through the bolt inserted into the circular hole to fix the clamp-type water tank 10; the water inlet pipe 13 and the water return pipe 15 are respectively connected to the lower end of the clamp-type water tank 10 to form a hot water circulation loop; the circulating water tank 14 is sleeved at the connection between the spray needle 4 and the valve body 2, and is connected to the water inlet pipe 13 and the water return pipe 15 The spray needle 4 is heated by waste heat; the heater collar 7 is fixed to the heat-conducting limit strip 8 by welding; the material of the heat-conducting limit strip 8 is a heat-conducting metal material; the clamp-type water tank 10 is made of elastic metal, and its inner cavity is connected with the water inlet pipe 13 and the water return pipe 15; the heat-conducting material is welded at the heat-conducting sink 11, and the contact ends of the heat-conducting limit strip 8 and the heat-conducting sink 11 are coated with thermal grease; the outer shell of the thermostat 9 is an insulating shell to ensure that it will not be affected by external heat during operation; the circulating water tank 14 is fixed to the valve body 2 by a nut, and a micro water pump is arranged on its side wall to circulate hot water.

[0027] The working process is as follows: before starting heating, check whether all connections are tight, make sure that the water inlet pipe 13 and the return pipe 15 are connected to the clamp-type water tank 10, and the circulating water tank 14 is fixed to the valve body 2 by nuts. At the same time, confirm that the wire connection of the thermostat 9 is correct; the thermostat 9 starts working and monitors the temperature of the heater collar 7 and the valve body 2. The heater collar 7 starts to heat up, and transfers heat to the heat-conducting trough 11 of the clamp-type water tank 10 through the heat-conducting limit strip 8; while the heater collar 7 is heating up, the micro water pump is started in the circulating water tank 14, pushing the hot water from the water inlet pipe 13 into the clamp-type water tank 10, and then flows back to the circulating water tank 14 through the return pipe 15, forming a hot water circulation loop; the hot water in the clamp-type water tank 10 transfers heat to the heat-conducting limit strip 8 through the contact between the heat-conducting trough 11 and the heat-conducting limit strip 8, and further transfers it to the heater collar 7 and the valve body 2; the thermostat 9 monitors the temperature of the heater collar 7 and the valve body 2 in real time, such as If the temperature is too high or too low, it will adjust the heating power of the heater collar 7 accordingly to ensure that the valve body 2 works within a suitable temperature range; after the valve body 2 reaches a suitable working temperature, the glue is injected into the valve body 2 through the glue injection port 3, and then sprayed out from the lower end of the valve body 2 under the action of the spray needle 4; when the hot water in the circulating water tank 14 flows through the connection between the valve body 2 and the spray needle 4, the waste heat is used to heat the spray needle 4, further increasing the temperature of the spray needle 4 to ensure smooth dispensing; during the entire heating process, it is necessary to regularly check the working status of each component to ensure smooth circulation of hot water, accurate temperature control, and normal dispensing.

[0028] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. However, the terms "include", "comprises" or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or include elements that are inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device that includes the elements.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dispensing valve heater, comprising a bracket (1), a valve body (2), a glue injection port (3), a spray needle (4), a positioning head (5) and an adjusting ejector pin (6), wherein the valve body (2) is mounted at the lower end of the bracket (1), the glue injection port (3) is connected to the upper part of the side wall of the valve body (2), the spray needle (4) is located at the lower end of the valve body (2), the adjusting ejector pin (6) is located at the upper end of the valve body (2), and the positioning head (5) is located at the upper end of the adjusting ejector pin (6), characterized in that: A heater collar (7) and a temperature controller (9) are sleeved on the lower part of the side wall of the valve body (2), and the temperature controller (9) is connected to the heater collar (7) via an electric wire and monitors the temperature of the heater collar (7) and the valve body (2); The outer wall of the heater collar (7) is provided with a plurality of heat-conducting limit strips (8), and the outer walls of the heater collar (7) and the temperature controller (9) are provided with a clamp-type water tank (10), and the side wall of the clamp-type water tank (10) is provided with a heat-conducting sink (11) adapted to the heat-conducting limit strips (8), the notch of the clamp-type water tank (10) is fixed by a connecting piece (12) and a fastener, and the lower end of the clamp-type water tank (10) is provided with a water inlet pipe (13) and a water return pipe (15), and the connection between the spray needle (4) and the valve body (2) is provided with a circulating water tank (14), and the circulating water tank (14) is connected with the water inlet pipe (13) and the water return pipe (15) to form a hot water circulation loop, and the spray needle (4) is heated by waste heat.

2. A dispensing valve heater according to claim 1, characterized in that: The heater sleeve ring (7) is fixedly welded to the heat-conducting limiting strip (8); a plurality of heat-conducting limiting strips (8) are distributed in a ring shape on the heater sleeve ring (7); and the heat-conducting limiting strips (8) are made of a heat-conducting metal material.

3. A dispensing valve heater according to claim 2, characterized in that: The clamp-type water tank (10) is made of elastic metal, and the inner cavity of the clamp-type water tank (10) is connected to the water inlet pipe (13) and the water return pipe (15), the heat-conducting sink (11) is welded with heat-conducting material, and the contact ends of the heat-conducting limit strip (8) and the heat-conducting sink (11) are coated with heat-conducting silicone grease.

4. A dispensing valve heater according to claim 3, characterized in that: The connecting piece (12) is divided into two square blocks and a circular hole. The circular hole is located on the two square blocks. Bolts are inserted into the circular holes and then connected with gaskets and nuts.

5. A dispensing valve heater according to claim 4, characterized in that: The contact end between the heater collar (7) and the valve body (2) is made of heat-conducting material, the temperature controller (9) is fixedly connected to the heater collar (7), and the outer shell of the temperature controller (9) is a heat-insulating shell.

6. A dispensing valve heater according to claim 5, characterized in that: The circulating water tank (14) is fixed to the valve body (2) via a nut, and a micro water pump is arranged on the side wall of the circulating water tank (14) to circulate hot water.

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