A dye cup and dyeing apparatus

Abstract

The application discloses a dyeing cup and a dyeing device. The dyeing cup comprises a cup body, a bottom cover, a rotating part, a first hollow rod and a pressing part. The bottom cover is arranged in the cup body, and a first cavity is formed between the bottom side of the bottom cover and the bottom wall of the cup body. The rotating part is arranged in the first cavity. The first hollow rod is fixedly arranged on the bottom cover and extends towards the cup opening. The pressing part is movably arranged in the cup body and is sleeved on the first hollow rod. The pressing part moves longitudinally above the bottom cover. The inner wall of the cup body, the bottom cover, the pressing part and the outer side surface of the first hollow rod form a second cavity for accommodating the dyed object. The bottom cover is provided with a liquid discharge structure. At least one of the bottom cover, the pressing part and the first hollow rod is provided with a backflow structure. The liquid discharge structure and the backflow structure are both communicated with the first cavity. The rotating part is rotated to make the liquid in the first cavity flow into the second cavity through the liquid discharge structure, and the liquid in the second cavity flows back to the first cavity through the backflow structure, so that the dyeing liquid can penetrate the dyed object.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cloth dyeing device, especially to a dye cup and dyeing equipment. BACKGROUND

[0002] Currently, before dyeing a large batch of textiles, a sample is generally needed to be dyed. After the sample is accepted, the result obtained from the sample is implemented on a large batch of dyeing vat.

[0003] In the prior art, when a sample is dyed, a dye cup is often used to contain a small batch of sample cloth or yarn, and dye is placed in the dye cup. After a period of rotation of the dye cup together with a sample dyeing machine, the dye can penetrate into the fiber tissue of the sample cloth. Therefore, once the sample cloth is placed in the dye cup, the dye cup forms a closed space for dyeing reaction. The current dye cup is a cup with a cover, and most of them are cylindrical. The sample cloth is placed in the dye cup in a curled manner, and a predetermined color and capacity of dye is poured into the dye cup. Then, the upper cover is closed, and the dye cup is placed in the heating cup slot of the sample dyeing machine for heating to accelerate the dyeing.

[0004] The bath ratio (the ratio of the dyeing liquid prepared for immersion or exhaustion dyeing to the dyed material) of the current large batch dyeing vat is lower than that of the sample dyeing cup, that is, the bath ratio of the sample dyeing cup is too high. Because the dyeing bath ratio of the large batch dyeing vat and the sample dyeing cup is quite different, and the bath ratio is a very critical factor for the reproducibility of the dyeing formula, the too high bath ratio of the sample dyeing cup leads to a low success rate of reproducing the color of the sample on the large batch dyeing vat. SUMMARY

[0005] In order to solve the technical problem of the too high bath ratio of the sample dyeing cup in the prior art, the present application provides a dye cup and dyeing equipment.

[0006] In order to solve the above technical problem, on the one hand, the present application provides a dye cup, which comprises:

[0007] a cup body having a cup opening;

[0008] a bottom cover arranged in the cup body, a first cavity being formed between the bottom side of the bottom cover and the bottom wall of the cup body;

[0009] a rotating member arranged in the first cavity;

[0010] a first hollow rod fixedly arranged on the bottom cover and extending towards the cup opening; and

[0011] a pressing member movably arranged in the cup body and sleeved on the first hollow rod, the pressing member being longitudinally movable above the bottom cover, a second cavity for containing a dyed material being formed between the inner wall of the cup body, the bottom cover, the pressing member and the outer side surface of the first hollow rod;

[0012] The bottom cover is provided with a liquid discharge structure, at least one of the bottom cover, the lower pressing piece and the first hollow rod is provided with a backflow structure, and the liquid discharge structure and the backflow structure are communicated with the first cavity; the rotating piece is rotated to make the liquid in the first cavity flow into the second cavity through the liquid discharge structure, and the liquid in the second cavity backflows to the first cavity through the backflow structure.

[0013] In some embodiments, the backflow structure comprises a first backflow hole arranged on the bottom cover and above the top surface of the rotating piece.

[0014] The liquid discharge structure comprises a liquid discharge hole arranged on the bottom cover and outside the side of the rotating piece.

[0015] In some embodiments, a plurality of first backflow holes and / or a plurality of liquid discharge holes are distributed at equal angular intervals along the circumference of the bottom cover.

[0016] In some embodiments, the backflow structure comprises a second backflow hole arranged on the side of the first hollow rod to communicate the inside and outside of the first hollow rod, and the lower end of the first hollow rod is communicated to above the top surface of the rotating piece.

[0017] In some embodiments, a plurality of second backflow holes are distributed at equal intervals along the axial direction of the first hollow rod.

[0018] In some embodiments, the dye cup further comprises:

[0019] A second hollow rod is fixedly arranged on the lower pressing piece and extends towards the cup opening, and the second hollow rod is sleeved on the first hollow rod; the side of the second hollow rod is provided with a third backflow hole communicating the inside and outside of the second hollow rod.

[0020] The backflow structure comprises a fourth backflow hole arranged on the lower pressing piece, and the liquid in the second cavity backflows into the first hollow rod through the fourth backflow hole, the third backflow hole and the second backflow hole in sequence.

[0021] In some embodiments, the bottom cover comprises a top wall and a side wall, the middle part of the top wall is provided with a first communication hole, the middle part of the rotating piece is arranged opposite to the first communication hole, the lower end of the first hollow rod is connected to the first communication hole, the side wall is tightly attached to the inner wall of the cup body, and a containing groove is formed between the top wall and the side wall.

[0022] The lower pressing piece is arranged parallel to the top wall, and the side of the lower pressing piece is separated from the inner wall of the cup body.

[0023] In some embodiments, the dye cup further includes:

[0024] A cup lid, wherein the cup lid is disposed on the rim of the cup; and

[0025] An injection structure is provided on the cup lid and corresponds to the first hollow rod to inject reagent into the first hollow rod.

[0026] On the other hand, embodiments of the present invention also provide a staining apparatus, comprising:

[0027] The dye cup mentioned above;

[0028] A magnetic drive component, wherein the rotating component is a magnetic rotor, and the magnetic drive component is disposed below the cup body to drive the magnetic rotor to rotate;

[0029] A heating device, on which the dye cup is placed to heat the dye cup; and an auxiliary agent injection device connected to the dye cup.

[0030] In some embodiments, the staining apparatus further includes a controller;

[0031] The heating device includes a heating jacket, a circulating pump, a cooling heat exchanger, a heater, a first temperature sensor, and a second temperature sensor;

[0032] The heating jacket, the circulating pump, the cooling heat exchanger, and the heater are connected in sequence through pipes to form a heating medium circulation system;

[0033] The first temperature sensor and the second temperature sensor are respectively installed at the inlet and outlet of the heating jacket, and the dye cup is placed in the heating jacket;

[0034] The circulating pump, the first temperature sensor, and the second temperature sensor are all electrically connected to the controller.

[0035] Implementing the embodiments of the present invention has the following beneficial effects: When the dye cup is used, the material to be dyed (fabric) is placed in the second cavity, and the rotating component is rotated so that the liquid (dye liquor) in the first cavity flows into the second cavity through the drainage structure, and the liquid in the second cavity flows back to the first cavity through the reflux structure. This allows the dye liquor to penetrate and fully exchange within the material to be dyed, thereby achieving the purpose of dyeing with an ultra-low liquor ratio. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of an embodiment of a dye cup according to the present invention;

[0037] Figure 2 yes Figure 1 A schematic diagram of the liquid flow trajectory;

[0038] Figure 3 is an exploded view of the bottom cover and the first hollow rod of the present application; Figure 1

[0039] Figure 4 is a structural schematic view of another embodiment of the bottom cover and the first hollow rod of the present application;

[0040] Figure 5 is a structural schematic view of still another embodiment of the bottom cover and the second hollow rod of the present application;

[0041] Figure 6 is a structural schematic view of still another embodiment of the dyeing apparatus of the present application.

[0042] BRIEF DESCRIPTION OF THE DRAWINGS

[0043] 100, dye cup; 110, cup body; 111, cup opening; 112, first cavity; 113, second cavity; 120, bottom cover; 121, first backflow hole; 122, liquid discharge hole; 123, top wall; 124, side wall; 125, first communication hole; 126, accommodating groove; 130, rotating member; 140, first hollow rod; 141, second backflow hole; 142, lower port; 150, pressing member; 151, second communication hole; 152, fourth backflow hole; 160, second hollow rod; 161, third backflow hole; 170, cup cover; 171, injection structure; 200, magnetic driving member; 300, heating device; 310, heating jacket; 320, circulating pump; 330, cooling heat exchanger; 340, heater; 350, first temperature sensor; 360, second temperature sensor; 400, auxiliary agent injection device; 410, peristaltic pump; 420, delivery pipe; 500, controller; 600, auxiliary agent bottle; 700, dyed object. DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. It is hereby declared that the up, down, left, right, front, back, inner and outer orientation words appearing or about to appear in the present application are only based on the drawings of the present application, and are not specific limitations of the present application.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. ​

[0046] In the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0047] An embodiment of the present application, as shown in Figure 1 , provides a dyeing cup 100, which comprises a cup body 110, a bottom cover 120, a rotating part 130, a first hollow rod 140 and a pressing part 150.

[0048] The cup body 110 has a cup opening 111. The bottom cover 120 is arranged in the cup body 110, and a first cavity 112 is formed between the bottom side of the bottom cover 120 and the bottom wall of the cup body 110. The rotating part 130 is arranged in the first cavity 112. The first hollow rod 140 is fixedly arranged on the bottom cover 120 and extends towards the cup opening 111. The pressing part 150 is movably arranged in the cup body 110 and is sleeved on the first hollow rod 140. The pressing part 150 moves longitudinally above the bottom cover 120, and a second cavity 113 for accommodating the dyed object 700 is formed between the inner wall of the cup body 110, the bottom cover 120, the pressing part 150 and the outer side surface of the first hollow rod 140.

[0049] Among them, the bottom cover 120 is provided with a liquid discharge structure, and at least one of the bottom cover 120, the pressing part 150 and the first hollow rod 140 is provided with a backflow structure, and the liquid discharge structure and the backflow structure are both communicated with the first cavity 112.

[0050] Combined with reference Figure 2 , Figure 2 is Figure 1 a liquid flow trajectory diagram. When the dyeing cup 100 works, the rotating part 130 is rotated to make the liquid (dyeing liquid) in the first cavity 112 flow into the second cavity 113 through the liquid discharge structure, and the liquid in the second cavity 113 backflows to the first cavity 112 through the backflow structure, so that the dyeing liquid can penetrate the dyed object 700 and exchange sufficiently, thereby achieving the purpose of dyeing with ultra-low bath ratio.

[0051] It should be noted that the backflow structure on at least one of the bottom cover 120, the pressing part 150 and the first hollow rod 140 can make the dyeing liquid flow through the dyed object 700. Preferably, the backflow structure is arranged on at least two of the bottom cover 120, the pressing part 150 and the first hollow rod 140, and the penetration effect of the dyeing liquid in the dyed object 700 is better.

[0052] More preferably, the bottom cover 120, the pressing member 150 and the first hollow rod 140 are all provided with backflow structures, wherein the backflow structure on the bottom cover 120 makes the dyeing liquid flow downward, the backflow structure on the pressing member 150 makes the dyeing liquid flow upward, and the backflow structure on the first hollow rod 140 makes the dyeing liquid flow inward, so that the dyeing liquid flows in multiple directions in the dyed object 700, and the two are in sufficient contact, further realizing the super-low bath ratio dyeing. The color of the dyeing liquid is basically consistent in the large production dyeing by using the same process as the process of determining the formula by the sample dyed by the present application. If the color of the dyeing liquid dyed by the first dyeing of the large batch is required, it is called a success. The probability of the above-mentioned success can be increased from less than 30% to more than 95% by using the present application.

[0053] In some embodiments, as shown in Figure 1 , the backflow structure includes a first backflow hole 121 arranged on the bottom cover 120 and above the top surface of the rotating member 130. The liquid discharge structure includes a liquid discharge hole 122 arranged on the bottom cover 120 and outside the side of the rotating member 130. When the rotating member 130 rotates, the liquid in the first cavity 112 moves from the side of the rotating member 130 to the surrounding, and then is discharged from the liquid discharge hole 122, and correspondingly, the liquid in the second cavity 113 flows back to the first cavity 112 from the first backflow hole 121.

[0054] Preferably, as shown in Figure 4 , in order to make the downwardly flowing dyeing liquid uniformly contact the dyed object 700 and be uniformly dyed, a plurality of first backflow holes 121 are distributed at equal angular intervals along the circumference of the bottom cover 120.

[0055] Preferably, as shown in Figure 4 , in order to make the discharged dyeing liquid uniformly contact the dyed object 700 and be uniformly dyed, a plurality of liquid discharge holes 122 are distributed at equal angular intervals along the circumference of the bottom cover 120.

[0056] In some embodiments, as shown in Figure 2 , the backflow structure includes a second backflow hole 141 arranged on the side of the first hollow rod 140 to communicate the inside and outside of the first hollow rod 140, and the lower end port 142 of the first hollow rod 140 communicates above the top surface of the rotating member 130.

[0057] In some embodiments, as shown in Figure 1 and Figure 2 , in order to make the inwardly flowing dyeing liquid uniformly contact the dyed object and be uniformly dyed, a plurality of second backflow holes 141 are distributed at equal intervals along the axis of the first hollow rod 140.

[0058] In some embodiments, as shown in Figures 1 to 3As shown, when the material to be dyed is placed in, the pressing member 150 needs to be removed from the cup opening 111. After the material to be dyed is placed in, the pressing member 150 is moved from the cup opening 111 into the cup body 110. In order to facilitate the movement of the pressing member 150, the dyeing cup 100 also includes a second hollow rod 160. The second hollow rod 160 is fixedly set on the pressing member 150 and extends in the direction of the cup opening 111. The second hollow rod 160 is also sleeved on the first hollow rod 140. Specifically, the pressing member 150 has a second connecting hole 151 in the middle. The lower end of the second hollow rod 160 is inserted into the second connecting hole 151. The first hollow rod 140 passes through the second connecting hole 151 to be inserted into the second hollow rod 160.

[0059] The second hollow rod 160 has a third return hole 161 on its side, which connects the inner and outer sides of the second hollow rod 160. The return structure includes a fourth return hole 152, which is located in the pressing member 150. Liquid from the second cavity 113 flows back to the first hollow rod 140 through the fourth return hole 152, the third return hole 161, and the second return hole 141. Liquid flowing out of the pressing member 150 through the fourth return hole 152 flows back to the first cavity 112 through the first hollow rod 140.

[0060] In some embodiments, such as Figure 1 As shown, the bottom cover 120 includes a top wall 123 and a side wall 124. A first connecting hole 125 is provided in the middle of the top wall 123. The middle of the rotating member 130 is positioned opposite to the first connecting hole 125. The lower end 142 of the first hollow rod 140 is connected to the first connecting hole 125. The side wall 124 is in close contact with the inner wall of the cup body 110 to allow as much liquid as possible to drain from the drain hole 122. A receiving groove 126 is formed between the top wall 123 and the side wall 124. The first cavity 112 is formed by the receiving groove 126 and the bottom wall of the cup body 110. The pressing member 150 is arranged parallel to the top wall 123. The side of the pressing member 150 is separated from the inner wall of the cup body 110, facilitating the movement of the pressing member 150 within the cup body 110.

[0061] In some embodiments, such as Figure 1 As shown, the dyeing cup 100 also includes a cup lid 170 and an injection structure 171, with the cup lid 170 disposed on the cup opening 111. The cup lid 170 is preferably a transparent lid, and the fit between the cup lid 170 and the cup opening 111 is preferably a threaded connection. It should be noted that those skilled in the art should understand that the cup lid 170 can also be opaque, and the fit between the cup lid 170 and the cup opening 111 can also be a tight fit, a snap-fit ​​connection, or a magnetic attraction, etc., simply by sealing the cup lid 170 onto the cup opening 111.

[0062] The injection structure 171 is arranged on the cup cover 170 and corresponds to the first hollow rod 140 to inject the auxiliary agent into the first hollow rod 140. Optionally, the injection structure 171 can be an injection needle, an injection hole or an injection tube, etc., as long as the injection of the auxiliary agent can be achieved. The auxiliary agent injected through the injection structure 171 is mixed with the liquid flowing back into the first cavity 112 through the first hollow rod 140, and then the auxiliary agent and the solution are fully mixed through the stirring of the rotating member 130 before the dyeing of the dyed object, so as to avoid the abnormal dyeing caused by directly dropping the auxiliary agent on the dyed object, for example, the color.

[0063] An embodiment of the present application, as shown in Figure 6 The dyeing device also comprises the dye cup 100, the magnetic driving member 200, the heating device 300 and the auxiliary agent injection device 400. The specific structure of the dye cup 100 is referred to the above-mentioned embodiments. Since the dyeing device adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0064] The dye cup 100 is placed on the heating device 300 to heat the dye cup 100, the auxiliary agent injection device 400 is connected to the dye cup 100, the rotating member 130 is a magnetic rotor, and the magnetic driving member 200 is arranged below the cup body 110 to drive the magnetic rotor to rotate.

[0065] Optionally, the shape of the magnetic rotor can be octagonal, hexagonal or long strip-shaped. Preferably, the magnetic rotor is made of high-temperature-resistant magnet, preferably the magnet with working temperature higher than 100℃, so as to avoid the discontinuous rotation or stop of the magnet due to high temperature. Since the magnetic rotor is easy to separate from its power source (magnetic driving member 200), it is convenient to put the dye cup 100 into the dyeing device or take it out of the dyeing device. Those skilled in the art should know that the rotating member 130 in the present application can also be an impeller, etc., and the corresponding power source is a motor device.

[0066] In some embodiments, as shown in Figure 6 The dyeing device also comprises the controller 500. The heating device 300 comprises a heating jacket 310, a circulating pump 320, a cooling heat exchanger 330, a heater 340, a first temperature sensor 350 and a second temperature sensor 360. The heating jacket 310, the circulating pump 320, the cooling heat exchanger 330 and the heater 340 are connected in sequence by pipelines and form a heating medium circulation system. The first temperature sensor 350 and the second temperature sensor 360 are arranged at the inlet and outlet of the heating jacket 310 respectively, and the dye cup 100 is placed in the heating jacket 310. The circulating pump 320, the first temperature sensor 350 and the second temperature sensor 360 are all electrically connected to the controller 500.

[0067] The working principle of the heating device 300 is as follows:

[0068] The circulating pump 320 drives the circulation of the heating medium. The heating medium in the embodiment of the present application can be water, glycerol or heat-conducting oil, etc. The heating medium first passes through the cooler, then passes through the heater 340 to be heated, and then flows into the dye cup 100 from the inlet of the heating jacket 310 to heat the dye cup 100, and finally flows out from the outlet of the heating jacket 310 to the circulating pump 320, thus circulating back and forth.

[0069] If the temperature difference measured by the first temperature sensor 350 and the second temperature sensor 360 exceeds the set value, the controller 500 will speed up the circulation speed of the circulating pump 320, thereby reducing the temperature difference between the dye cups 100. It is known that the greater the temperature difference, the greater the difference in dyeing effect. By reducing the temperature difference between the dye cups 100, the difference in dyeing of the dye cups 100 can be reduced.

[0070] In some embodiments, as shown in Figure 6 The auxiliary agent injection device 400 includes a peristaltic pump 410 and a delivery pipe 420. The input port of the peristaltic pump 410 is connected to the auxiliary agent bottle 600, the output port of the peristaltic pump 410 is connected to the delivery pipe 420, and the delivery pipe 420 is connected to the injection structure 171. The peristaltic pump 410 is a device for delivering and metering liquid by squeezing the pump pipe.

[0071] The above describes the preferred embodiments of the present application. It should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A dye cup characterized in that, The dye cup comprises: a cup body having a cup opening; a bottom cover arranged in the cup body, a first cavity being formed between the bottom side of the bottom cover and the bottom wall of the cup body; a rotating member arranged in the first cavity; a first hollow rod fixedly arranged on the bottom cover and extending towards the cup opening; and a pressing member movably arranged in the cup body and sleeved on the first hollow rod, the pressing member being longitudinally movable above the bottom cover, a second cavity for accommodating a dyeing object being formed between the inner wall of the cup body, the bottom cover, the pressing member and the outer side of the first hollow rod. The bottom cover is provided with a liquid discharge structure, at least one of the bottom cover, the pressing member and the first hollow rod is provided with a backflow structure, and the liquid discharge structure and the backflow structure are both in communication with the first cavity. The rotating member is rotated to make the liquid in the first cavity flow into the second cavity through the liquid discharge structure, and the liquid in the second cavity flows back to the first cavity through the backflow structure. The backflow structure comprises a first backflow hole arranged on the bottom cover and located above the top surface of the rotating member.

2. The dye cup of claim 1, wherein, The liquid discharge structure comprises a liquid discharge hole arranged on the bottom cover and located on the outer side of the side of the rotating member. A plurality of first backflow holes and / or a plurality of liquid discharge holes are distributed at equal angles along the circumference of the bottom cover.

3. The dye cup of claim 2, wherein, The backflow structure comprises a second backflow hole arranged on the side of the first hollow rod to communicate between the inner and outer sides of the first hollow rod, and the lower end of the first hollow rod is communicated to above the top surface of the rotating member.

4. The dye cup of claim 1, wherein, A plurality of second backflow holes are distributed at equal distances along the axial direction of the first hollow rod.

5. The dye cup of claim 4, wherein, The dye cup further comprises:

6. The dye cup of claim 4, wherein, a second hollow rod fixedly arranged on the pressing member and extending towards the cup opening, the second hollow rod being sleeved on the first hollow rod; a third backflow hole arranged on the side of the second hollow rod to communicate between the inner and outer sides of the second hollow rod; the backflow structure comprises a fourth backflow hole arranged on the pressing member, and the liquid in the second cavity flows back to the first hollow rod through the fourth backflow hole, the third backflow hole and the second backflow hole in sequence. The bottom cover comprises a top wall and a side wall, the middle part of the top wall is provided with a first communication hole, the middle part of the rotating member is arranged opposite to the first communication hole, the lower end of the first hollow rod is connected to the first communication hole, the side wall is tightly attached to the inner wall of the cup body, and a receiving groove is formed between the top wall and the side wall; 7. The dye cup of claim 1 wherein, the pressing member is arranged parallel to the top wall, and the side of the pressing member is separated from the inner wall of the cup body. The dye cup further comprises:

8. The dye cup of any one of claims 1 to 6, wherein, a cup cover arranged on the cup opening; and an injection structure arranged on the cup cover and corresponding to the first hollow rod to inject a reagent into the first hollow rod. The dye cup comprises: the dye cup according to any one of claims 1 to 8; 9. A dyeing apparatus, characterized in that a magnetic driving member arranged below the cup body to drive the magnetic rotor to rotate; a heating device on which the dye cup is placed to heat the dye cup; and ​ ​ ​ An auxiliary agent injection device is connected to the dye cup.

10. The dyeing apparatus according to claim 9, characterized in that A controller is further included. The heating device comprises a heating jacket, a circulating pump, a cooling heat exchanger, a heater, a first temperature sensor and a second temperature sensor. The heating jacket, the circulating pump, the cooling heat exchanger and the heater are connected in sequence by pipes and form a heating medium circulating system. The first temperature sensor and the second temperature sensor are respectively arranged at the inlet and outlet of the heating jacket, and the dye cup is placed in the heating jacket. The circulating pump, the first temperature sensor and the second temperature sensor are all electrically connected to the controller.

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