Utilization device for recycling UV curing heat energy

Abstract

The invention is suitable for the technical field of UV spraying, and discloses a UV curing heat energy recycling device which comprises a leveling chamber, a UV curing chamber, a conveying assembly, a heat exchanger, a first exhaust pipeline, a fresh air conveying pipe, an exhaust fan, an induced draft fan and an air inlet pipeline. The first exhaust pipeline is arranged on the UV curing chamber, and the first exhaust pipeline is connected with the heat exchanger, so that heat carried by hot air in the UV curing chamber can be recycled, and redundant heat energy generated in the UV curing chamber can be recycled to be used for heating fresh air; the fresh air is used for leveling treatment of the UV paint after being heated, the heat energy utilization rate is increased, energy consumption is reduced, meanwhile, the temperature in the UV curing chamber can be prevented from being greatly increased, and therefore the quality of the cured UV paint can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of UV spraying, and in particular to a UV curing heat energy recovery and utilization device. Background Art

[0002] Bottle caps are an important part of food and beverage packaging, and are also the first place where consumers come into contact with products. During the production of bottle caps, in order to promote the products in the bottle and increase the aesthetics of the bottle caps, manufacturers will spray brand logos or patterns on the surface of the bottle caps. Among them, UV spraying is a commonly used spraying process for bottle cap surface spraying. Compared with traditional spraying processes, UV spraying has the advantages of short curing time and improved production efficiency.

[0003] After UV spraying the bottle cap, the UV paint needs to be leveled and cured, wherein the temperature required for UV paint leveling is 45°C-70°C, and the temperature required for UV paint curing is 90°C-110°C. To this end, the Chinese patent document with announcement number CN209156227U provides a high-efficiency UV spraying device, including a preheating chamber, a UV spraying chamber, a leveling drying chamber and a UV curing chamber arranged from left to right, wherein an exhaust pipe is arranged on the top of the leveling drying chamber, and a plurality of UV lamps for curing UV paint are arranged in the UV curing chamber; the UV lamp is located directly above the conveyor belt.

[0004] In actual production, due to the particularity that UV paint requires ultraviolet light to cure, a large amount of heat will inevitably be generated in the UV curing room. The above-mentioned high-efficiency UV spraying device does not have the function of recycling the heat energy in the UV curing room. As a result, the temperature in the UV curing room will increase significantly. When the temperature in the UV curing room is higher than the reasonable temperature range required for UV paint curing, it will affect the quality of the UV paint.

[0005] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0006] The present invention provides a device for recovering and utilizing UV curing heat energy, aiming to solve the problem that the heat energy in the UV curing chamber of the existing UV spraying device cannot be reasonably recovered and utilized.

[0007] To achieve the above object, the solution provided by the present invention is:

[0008] A UV curing heat recovery and utilization device comprises a leveling chamber, a UV curing chamber, and a conveying assembly arranged in the leveling chamber and the UV curing chamber; and further comprises:

[0009] A heat exchanger, wherein the heat exchanger is provided with a first heat exchange unit and a second heat exchange unit in which heat media are isolated from each other;

[0010] A first exhaust duct, wherein the first exhaust duct is disposed on the UV curing chamber, the first exhaust duct is communicated with the UV curing chamber, and an output end of the first exhaust duct is connected to an input end of the first heat exchange unit;

[0011] A fresh air delivery pipe connected to an input end of the second heat exchange unit;

[0012] An exhaust fan connected to the first exhaust duct;

[0013] An induced draft fan connected to a fresh air delivery pipe;

[0014] The air inlet pipeline is arranged on the leveling chamber, and one end of the air inlet pipeline is connected to the leveling chamber, and the other end is connected to the output end of the second heat exchange unit.

[0015] Optionally, a first air duct is provided in the top wall of the leveling chamber, a second air duct is provided in the left and right walls of the leveling chamber, and a third air duct is provided in the bottom wall of the leveling chamber; the air inlet duct is connected to the first air duct; the first air duct is connected to the second air duct, and the third air duct is connected to the second air duct;

[0016] The left inner wall surface and the right inner wall surface of the leveling chamber are both provided with first air outlet holes connected with the second air duct, and the bottom inner wall surface of the leveling chamber is provided with second air outlet holes connected with the third air duct.

[0017] Optionally, a hot air shunt pipe is provided on the top side of the leveling chamber; the hot air shunt pipe is connected to the air inlet pipeline, and the hot air shunt pipe has two air outlet ends located in the first air duct, and the two air outlet ends are respectively arranged toward the left wall and the right wall of the leveling chamber;

[0018] A heating component is provided in the first air duct, and the heating component is provided in front of the air outlet of the air outlet end; a temperature sensor is provided in the leveling chamber.

[0019] Optionally, the UV curing heat recovery and utilization device further comprises:

[0020] A fresh air filter, the air inlet and air outlet of the fresh air filter are simultaneously connected to the fresh air delivery pipe;

[0021] An exhaust gas delivery pipe, wherein the exhaust gas delivery pipe is connected to an output end of the first heat exchange unit;

[0022] An activated carbon adsorption box, wherein the activated carbon adsorption box is connected to the exhaust gas delivery pipe;

[0023] The electric proportional valve is arranged on the air inlet pipeline, and the electric proportional valve has an air inlet end and at least two air outlet ends.

[0024] Optionally, a detachable filter assembly is provided in the first air duct, and the heating assembly is located between the filter assembly and the hot air diversion pipe.

[0025] Optionally, the heating assembly is disposed on the top side of the leveling chamber, and the heating assembly includes:

[0026] An installation frame, the installation frame is fixedly arranged on the top side of the leveling chamber;

[0027] Heating tubes, the heating tubes are arranged side by side and detachably in the installation frame;

[0028] A cover plate is rotatably arranged on the top side of the installation frame.

[0029] Optionally, the conveying assembly includes a conveying chain and further includes:

[0030] Sprockets, at least four of which are provided, and the sprockets are used to tension the conveyor chain,

[0031] A driving mechanism, wherein an output shaft of the driving mechanism is drivingly connected to a sprocket;

[0032] A support assembly, wherein the support assembly is arranged on the conveying chain and is used to support the bottle cap;

[0033] A guide rail is provided with a U-shaped guide groove for accommodating a conveying chain.

[0034] Optionally, the conveyor chains are arranged in an S shape.

[0035] Optionally, the support assembly includes:

[0036] A first support rod, wherein the first support rod is vertically arranged on the conveying chain;

[0037] A second support rod, the second support rod being vertically arranged on an upper end surface of the first support rod;

[0038] A guide cylinder, wherein the guide cylinder is vertically arranged at the upper end of the second support rod;

[0039] A plurality of arc-shaped spring pieces are vertically arranged, and the plurality of arc-shaped spring pieces are arranged around the second support rod, and the upper portion of the arc-shaped spring piece is bent toward the second support rod, and the arc-shaped spring piece is used to clamp the inner side wall of the bottle cap;

[0040] The return spring is arranged horizontally, and the two ends of the return spring are respectively connected to the inner wall of the arc-shaped spring piece and the second support rod.

[0041] Optionally, the support assembly further includes:

[0042] A connecting piece, wherein the connecting piece is sleeved on the first supporting rod;

[0043] The rollers are rotatably arranged on both sides of the connecting member, and the rollers are rollably arranged on the top side of the guide rail.

[0044] Beneficial effects:

[0045] The present invention provides a device for recovering and utilizing heat energy of UV curing. By arranging a first exhaust duct on the UV curing chamber and connecting the first exhaust duct to a heat exchanger, the heat carried by the hot air in the UV curing chamber can be recovered, so that the excess heat energy generated in the UV curing chamber can be recovered for heating the fresh air. The heated fresh air is used for leveling treatment of UV paint, which improves the utilization rate of heat energy and reduces energy consumption, and can also avoid a significant increase in the temperature in the UV curing chamber, thereby ensuring the quality of the UV paint after curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of a UV curing heat energy recovery and utilization device provided by the present invention.

[0047] Figure 2 Schematic diagram of the structure of the leveling chamber.

[0048] Figure 3 Schematic diagram of the structure of the UV curing chamber.

[0049] Figure 4 3 is a distribution diagram of the conveying components in the leveling chamber and the UV curing chamber.

[0050] Figure 5 1 is a simplified structural diagram of the conveying assembly.

[0051] Figure 6 Schematic diagram of the structure of the heating component.

[0052] Figure 7 It is a schematic diagram of the local structure of the conveying component.

[0053] Figure 8 yes Figure 7 Enlarged view of part A.

[0054] Fig. 9 It is a schematic structural diagram of the arc-shaped spring piece in one of the optional embodiments.

[0055] Description of Figure Numbers:

[0056] 1-leveling chamber; 101-first air duct; 102-second air duct; 103-third air duct; 104-first air outlet; 105-second air outlet;

[0057] 2-UV curing chamber;

[0058] 3-conveying assembly; 31-conveying chain; 32-sprocket; 33-driving mechanism; 34-support assembly; 341-first support rod; 342-second support rod; 343-guide cylinder; 344-arc spring; 345-reset spring; 346-connecting piece; 347-roller; 35-guide rail; 351-U-shaped guide groove;

[0059] 4-heat exchanger; 5-first exhaust air pipeline; 6-fresh air delivery pipe; 7-exhaust fan; 8-induced draft fan; 9-air inlet pipeline; 10-hot air diversion pipe; 11-second exhaust air pipeline;

[0060] 12-heating assembly; 121-installation frame; 122-heating tube; 123-cover plate;

[0061] 13-temperature sensor; 14-fresh air filter; 15-exhaust gas delivery pipe; 16-activated carbon adsorption box; 17-electric proportional valve; 18-filter assembly; 19-UV lamp. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0064] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0065] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0066] See also Figures 1 to 4 The present invention provides a UV curing heat energy recovery and utilization device, including a leveling chamber 1, a UV curing chamber 2, a conveying component 3, a heat exchanger 4, a first exhaust duct 5, a fresh air conveying duct 6, an exhaust fan 7, an induced draft fan 8 and an air inlet duct 9.

[0067] The UV curing chamber 2 is arranged downstream of the leveling chamber 1, and can be arranged close to the leveling chamber 1 or at a certain distance from the leveling chamber 1. The conveying component 3 is arranged through the leveling chamber 1 and the UV curing chamber 2 at the same time, and is used to convey the bottle caps with UV paint sprayed on the surface, so that the bottle caps sprayed with UV paint are conveyed to the leveling chamber 1 and the UV curing chamber 2 in sequence, so as to perform leveling and UV curing treatment, thereby ensuring the continuity of bottle cap production.

[0068] The heat exchanger 4 may be a plate heat exchanger 4, a heat pipe heat exchanger 4, etc. A first heat exchange unit and a second heat exchange unit are provided in the heat exchanger 4, wherein the heat medium is isolated from each other. After different heat mediums enter the first heat exchange unit and the second heat exchange unit respectively, the heat medium with a high temperature can transfer heat to the heat medium with a low temperature.

[0069] The first exhaust duct 5 can be installed on the top side of the UV curing chamber 2, and the first exhaust duct 5 is connected to the UV curing chamber 2, and the output end of the first exhaust duct 5 is connected to the input end of the first heat exchange unit. The exhaust fan 7 is connected to the first exhaust duct 5. When the exhaust fan 7 is started, the hot air in the UV curing chamber 2 is pumped to the first heat exchange unit through the first exhaust duct 5.

[0070] Among them, the fresh air delivery pipe 6 is connected to the input end of the second heat exchange unit. The induced draft fan 8 is connected to the fresh air delivery pipe 6. The air inlet pipe 9 can be installed on the top side of the leveling chamber 1, and one end of the air inlet pipe 9 is connected to the leveling chamber 1, and the other end is connected to the output end of the second heat exchange unit. When the induced draft fan 8 is started, the fresh air from the outside is pumped into the second heat exchange unit through the fresh air delivery pipe 6. Since the temperature of the fresh air from the outside is lower than the temperature of the hot air in the first heat exchange unit, the fresh air can be heated in the second heat exchange unit. After the fresh air is heated, it is transported to the leveling chamber 1 through the air inlet pipe 9, thereby providing temperature for the leveling chamber 1, which can be used for the leveling treatment of UV paint.

[0071] It can be seen that by arranging the first exhaust duct 5 on the UV curing chamber 2 and connecting the first exhaust duct 5 with the heat exchanger 4, the heat carried by the hot air in the UV curing chamber 2 can be recovered, so that the excess heat energy generated in the UV curing chamber 2 can be recovered for heating the fresh air; and the heated fresh air is used for the leveling treatment of the UV paint, which not only improves the thermal energy utilization rate and reduces the energy consumption, but also avoids a substantial increase in the temperature in the UV curing chamber 2, thereby ensuring the quality of the UV paint after curing.

[0072] It is understandable that a plurality of UV lamps 19 for curing UV paint are provided in the UV curing chamber 2. The UV lamps 19 are located directly above the conveying assembly 3.

[0073] In addition, it should be noted that the present invention does not limit the length of the leveling chamber 1 and the UV curing chamber 2. When the length of the leveling chamber 1 and the UV curing chamber 2 is longer, the leveling chamber 1 and the UV curing chamber 2 can be connected by multiple sections.

[0074] like Figure 2 As shown, optionally, a first air duct 101 is provided in the top wall of the leveling chamber 1, a second air duct 102 is provided in the left and right walls of the leveling chamber 1, and a third air duct 103 is provided in the bottom wall of the leveling chamber 1. The air inlet duct 9 is connected to the first air duct 101, and the fresh air first enters the first air duct 101 through the air inlet duct 9 after being heated.

[0075] The first air duct 101 is connected to the second air duct 102, and the third air duct 103 is connected to the second air duct 102. Therefore, after the heated fresh air enters the first air duct 101, the fresh air can further circulate in the second air duct 102 and the third air duct 103. In addition, a plurality of first air outlet holes 104 connected to the second air duct 102 are provided on the left inner wall surface and the right inner wall surface of the leveling chamber 1, and a plurality of second air outlet holes 105 connected to the third air duct 103 are provided on the bottom inner wall surface of the leveling chamber 1. When the fresh air circulates in the second air duct 102 and the third air duct 103, the fresh air can pass through the second air outlet holes 105 and the third air outlet holes and enter the leveling chamber 1. Thus, the temperature in the leveling chamber 1 can be evenly distributed, so that the adhesion of the UV paint is increased and the apparent defects of the UV paint can be reduced.

[0076] like Figure 2 As shown, optionally, a hot air diverter 10 is provided on the top side of the leveling chamber 1, and the hot air diverter 10 is connected to the air inlet duct 9, and the hot air diverter 10 has two air outlet ends located in the first air duct 101, and the two air outlet ends are respectively arranged toward the left wall and the right wall of the leveling chamber 1, thereby with the help of the hot air diverter 10, the fresh air can generate two left and right flow directions in the first air duct 101, so that the fresh air flows in the second air duct 102 in the left and right side walls of the leveling chamber 1, so that in the leveling chamber 1, the left and right inner walls of the leveling chamber 1 and the bottom inner wall have the heated fresh air ejected, which further ensures the uniform temperature distribution in the leveling chamber 1.

[0077] like Figure 2 and Figure 6 As shown, optionally, a heating assembly 12 is provided in the first air duct 101, and at least two groups of heating assemblies 12 are provided, and are respectively provided at the front side of the air outlet of the air outlet end; in addition, a temperature sensor 13 is provided in the leveling chamber 1, which is used to monitor the temperature in the leveling chamber 1. When the temperature sensor 13 detects that the temperature in the leveling chamber 1 is lower than 45°C, the controller electrically connected to the temperature sensor 13 controls the working state of the heating assembly 12, so that the heating assembly 12 is maintained at a suitable working power, thereby further heating the fresh air, and the temperature in the leveling chamber 1 can be restored to 45°C-70°C.

[0078] like Figure 1 As shown, optionally, the UV curing heat energy recovery and utilization device also includes a fresh air filter 14, an exhaust gas conveying pipe 15, an activated carbon adsorption box 16, and an electric proportional valve 17.

[0079] The air inlet and outlet ends of the fresh air filter 14 are connected to the fresh air delivery pipe 6 at the same time, and a detachable filter screen is arranged inside the fresh air filter 14. The fresh air filter 14 can filter impurities carried in the fresh air, and when the fresh air is used for heat exchange and temperature rise in the leveling chamber 1, impurities will not be introduced to the surface of the UV paint, so that the apparent defects of the UV paint can be reduced, and the quality of the bottle cap can be maintained at a normal and reasonable level.

[0080] Among them, the exhaust gas delivery pipe 15 is connected to the output end of the first heat exchange unit, and the activated carbon adsorption box 16 is connected to the exhaust gas delivery pipe 15. Since volatile organic compounds are generated when UV paint is cured, and volatile organic compounds will cause certain harm to human health and the environment, the present invention connects the exhaust gas delivery pipe 15 to the output end of the first heat exchange unit, and connects the exhaust gas delivery pipe 15 to the activated carbon adsorption box 16, so that after the hot air in the UV curing chamber 2 is heat-exchanged with the fresh air, the air is sent to the activated carbon adsorption box 16 through the exhaust gas delivery pipe 15 for activated carbon adsorption treatment, thereby removing the volatile organic compounds carried by the air in the UV curing chamber 2. Of course, a second exhaust pipe can also be set on the top side of the leveling chamber 1, and the second exhaust pipe can be connected to the activated carbon adsorption box 16, so that the exhaust gas in the leveling chamber 1 can also be transported to the activated carbon adsorption box 16 for adsorption treatment, thereby reducing the emission of pollutant-containing exhaust gas.

[0081] The electric proportional valve 17 is arranged on the air inlet pipeline, and the electric proportional valve 17 has an air inlet end and at least two air outlet ends. The air inlet end and one of the air outlet ends should be connected to the air inlet pipeline at the same time, so that the heated fresh air can be transported to the leveling chamber 1 through the air inlet pipeline, and the remaining air outlet ends can be connected to other heat-using equipment through the pipeline. By arranging the electric proportional valve 17 on the air inlet pipeline, the flow rate of fresh air transported to the leveling chamber 1 can be controlled by the electric proportional valve 17. When the temperature in the leveling chamber 1 cannot meet the leveling requirements of the UV paint, the flow rate of fresh air transported to the leveling chamber 1 should be adjusted to the maximum; when the temperature in the leveling chamber 1 can meet the leveling requirements of the UV paint, or even when the temperature in the leveling chamber 1 is too high, the flow rate of fresh air transported to the leveling chamber 1 can be reduced, and the excess fresh air is used in other heat-using equipment (such as a dryer).

[0082] like Figure 2 As shown, optionally, a filter assembly 18 is detachably provided in the first air duct 101, and the heating assembly 12 is located between the filter assembly 18 and the hot air diversion pipe 10. Considering that the heating assembly 12 may carry metal debris and dust, a filter assembly 18 is installed in the first air duct 101 to further filter the fresh air flowing through the heating assembly 12, so as not to introduce impurities to the surface of the UV paint.

[0083] like Figure 6As shown, optionally, the heating assembly 12 is arranged on the top side of the leveling chamber 1, and the heating assembly 12 includes a mounting frame 121, a heating tube 122 and a cover plate 123. Among them, the mounting frame 121 is fixedly penetrated on the top side of the leveling chamber 1, and correspondingly, the top side of the leveling chamber 1 is also provided with an opening to accommodate the mounting frame 121. The heating tube 122 can be an electric heating tube 122, which is arranged side by side and detachably in the mounting frame 121, which is convenient for disassembly and assembly, and can ensure that the fresh air in the first air duct 101 is heated. The cover plate 123 can be connected to the top side of the mounting frame 121 by a hinge connection. When the heating tube 122 does not need to be replaced, the cover plate 123 covers all the heating tubes 122 in the mounting frame 121, so that dust is not easy to fall into the first air duct 101.

[0084] like Figure 4 and Figure 5 As shown, optionally, the conveying assembly 3 includes a conveying chain 31 , a sprocket 32 ​​, a driving mechanism 33 , a supporting assembly 34 and a guide rail 35 .

[0085] Among them, at least four sprockets 32 are provided, and the sprockets 32 are used to tension the conveying chain 31. The driving mechanism 33 is generally a driving motor, and its output shaft is transmission-connected with the sprocket 32, and is used to drive the sprocket 32 ​​to rotate, so that the conveying chain 31 can move. The supporting assembly 34 is arranged on the conveying chain 31, and is used to support the bottle cap. The guide rail 35 is provided with a U-shaped guide groove 351 for accommodating the conveying chain 31. When the conveying chain 31 is placed in the U-shaped guide groove 351, the conveying chain 31 can be guided, thereby ensuring that the chain runs on the correct path, reducing the deviation and deviation of the chain, and the conveying assembly 3 can perform the conveying operation normally, so that the spray painting of the bottle cap, the leveling of the UV paint and the curing treatment can be carried out smoothly.

[0086] like Figure 5 As shown, optionally, the conveying chain 31 is arranged in an S shape, thereby extending the conveying time of the bottle caps in the leveling chamber 1 and the UV curing chamber 2 to ensure the leveling and curing effects of the UV paint.

[0087] like Figure 5 , Figures 7 and 8 As shown, optionally, the support assembly 34 includes a first support rod 341 , a second support rod 342 , a guide cylinder 343 , an arc-shaped spring piece 344 and a return spring 345 .

[0088] The first support rod 341 and the second support rod 342 can both be cylindrical, and the first support rod 341 is vertically detachably arranged on the conveying chain 31; the outer diameter of the second support rod 342 is smaller than the outer diameter of the first support rod 341, and the second support rod 342 is vertically arranged on the upper end surface of the first support rod 341. The guide cylinder 343 is vertically arranged on the upper end portion of the second support rod 342, and the lower end surface of the guide cylinder 343 is separated from the upper end surface of the first support rod 341 by a certain distance. A plurality of arc-shaped spring pieces 344 are vertically arranged, and the arc-shaped spring pieces 344 are arranged around the second support rod 342. The reset spring 345 is horizontally arranged, and the two ends of the reset spring 345 are respectively connected to the inner wall of the arc-shaped spring piece 344 and the second support rod 342.

[0089] The arc-shaped spring piece 344 is used to clamp the inner wall of the bottle cap. Specifically, when the bottle cap needs to be placed on the support assembly 34, the bottle cap is placed on the guide cylinder 343 whose outer diameter is smaller than the inner diameter of the bottle cap to ensure that the bottle cap can be placed on the support assembly 34; the lower outer sides of the multiple arc-shaped spring pieces 344 form a circular contour, and the outer diameter of the circular contour is larger than the inner diameter of the bottle cap. Therefore, when the bottle cap is placed on the guide cylinder 343, the lower inner wall of the bottle cap will squeeze the arc-shaped spring piece 344; and when the arc-shaped spring piece 344 is squeezed, the return spring 345 is in a compressed state and exerts a force on the arc-shaped spring piece 344 toward the outer side of the arc-shaped spring piece 344, thereby utilizing the arc-shaped spring piece 344 to clamp the bottle cap and place the bottle cap stably on the support assembly 34.

[0090] When the bottle cap needs to be taken out from the support assembly 34, it is only necessary to move the bottle cap upwards, which is convenient to operate. After the bottle cap is taken out, the return spring 345 will push the arc-shaped spring piece 344 outwards for resetting, so that when the bottle cap is placed on the support assembly 34 again, the bottle cap can squeeze the arc-shaped spring piece 344.

[0091] In addition, in order to enable the bottle cap to squeeze the arc-shaped spring piece 344, the upper part of the arc-shaped spring piece 344 is bent toward the second support rod 342, so that the bottle cap can be put on the upper part of the arc-shaped spring piece 344, and the problem of the bottle cap being unable to be put on multiple arc-shaped spring pieces 344 at the same time will not occur. As the bottle cap continues to move downward, the bottle cap gradually squeezes the arc-shaped spring piece 344 so that the bottle cap is clamped by the arc-shaped spring piece 344.

[0092] like Figure 7As shown, optionally, the support assembly 34 further includes a connector 346 and a roller 347. The connector 346 is sleeved on the first support rod 341; the roller 347 is rotatably disposed on both sides of the connector 346, and the roller 347 is rollably disposed on the top side of the guide rail 35. When the roller 347 rolls on the top side of the guide rail 35, it can support the connector 346 and the first support rod 341, preventing the conveying chain 31 from sagging and contacting the bottom groove surface of the U-shaped guide groove 351, so that the conveying chain 31 will not rub against the bottom groove surface of the U-shaped guide groove 351, thereby improving the stability of the conveying assembly 3 during operation, and the conveying chain 31 is not easy to deviate from the normal conveying path.

[0093] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A device for recovering heat energy from UV curing, comprising a leveling chamber (1), a UV curing chamber (2), and a conveying assembly (3) disposed in the leveling chamber (1) and the UV curing chamber (2); characterized in that: Also includes: A heat exchanger (4), wherein the heat exchanger (4) is provided with a first heat exchange unit and a second heat exchange unit in which heat media are isolated from each other; A first exhaust duct (5), wherein the first exhaust duct (5) is arranged on the UV curing chamber (2), the first exhaust duct (5) is in communication with the UV curing chamber (2), and the output end of the first exhaust duct (5) is connected to the input end of the first heat exchange unit; A fresh air delivery pipe (6), wherein the fresh air delivery pipe (6) is connected to an input end of the second heat exchange unit; An exhaust fan (7), the exhaust fan (7) being connected to the first exhaust pipe (5); An induced draft fan (8), the induced draft fan (8) being connected to the fresh air delivery pipe (6); An air inlet pipeline (9), wherein the air inlet pipeline (9) is arranged on the leveling chamber (1), and one end of the air inlet pipeline (9) is connected to the leveling chamber (1), and the other end of the air inlet pipeline (9) is connected to the output end of the second heat exchange unit.

2. The UV curing heat recovery and utilization device according to claim 1 is characterized in that: A first air duct (101) is provided in the top wall of the leveling chamber (1), a second air duct (102) is provided in the left and right walls of the leveling chamber (1), and a third air duct (103) is provided in the bottom wall of the leveling chamber (1); the air inlet pipeline (9) is in communication with the first air duct (101); the first air duct (101) is in communication with the second air duct (102), and the third air duct (103) is in communication with the second air duct (102); A first air outlet (104) connected to the second air duct (102) is provided on the left inner wall surface and the right inner wall surface of the leveling chamber (1), and a second air outlet (105) connected to the third air duct (103) is provided on the bottom inner wall surface of the leveling chamber (1).

3. The UV curing heat recovery and utilization device according to claim 2, characterized in that: A hot air shunt pipe (10) is provided on the top side of the leveling chamber (1); the hot air shunt pipe (10) is connected to the air inlet pipeline (9), and the hot air shunt pipe (10) has two air outlet ends located in the first air duct (101), and the two air outlet ends are respectively arranged toward the left side wall and the right side wall of the leveling chamber (1); A heating component (12) is provided in the first air duct (101), and the heating component (12) is arranged in front of the air outlet of the air outlet end; a temperature sensor (13) is provided in the leveling chamber (1).

4. The UV curing heat recovery and utilization device according to claim 3 is characterized in that: Also includes: A fresh air filter (14), the air inlet end and the air outlet end of the fresh air filter (14) being simultaneously connected to the fresh air delivery pipe (6); An exhaust gas delivery pipe (15), wherein the exhaust gas delivery pipe (15) is connected to an output end of the first heat exchange unit; An activated carbon adsorption box (16), wherein the activated carbon adsorption box (16) is connected to the exhaust gas delivery pipe (15); An electric proportional valve (17), wherein the electric proportional valve (17) is arranged on an air intake pipeline (9), and the electric proportional valve (17) has an air intake end and at least two air outlet ends.

5. The UV curing heat recovery and utilization device according to claim 3, characterized in that: A filter assembly (18) is detachably provided in the first air duct (101), and the heating assembly (12) is located between the filter assembly (18) and the hot air diversion pipe (10).

6. The UV curing heat recovery and utilization device according to claim 3, characterized in that: The heating component (12) is arranged on the top side of the leveling chamber (1), and the heating component (12) comprises: An installation frame (121), the installation frame (121) being fixedly disposed on the top side of the leveling chamber (1); Heating tubes (122), the heating tubes (122) are arranged side by side and detachably in the installation frame (121); A cover plate (123), wherein the cover plate (123) is rotatably disposed on the top side of the installation frame (121).

7. The UV curing heat recovery and utilization device according to claim 1, characterized in that: The conveying assembly (3) comprises a conveying chain (31), and further comprises: A sprocket (32), wherein at least four sprockets (32) are provided, and the sprocket (31) is used to tension the conveying chain (31), A driving mechanism (33), wherein an output shaft of the driving mechanism (33) is drivingly connected to the sprocket (32); A support assembly (34), wherein the support assembly (34) is arranged on the conveying chain (31), and the support assembly (34) is used to support the bottle cap; A guide rail (35) is provided on the guide rail (35) and is provided with a U-shaped guide groove (351) for accommodating the conveying chain (31).

8. The UV curing heat recovery and utilization device according to claim 7, characterized in that: The conveying chains (31) are arranged in an S shape.

9. The UV curing heat recovery and utilization device according to claim 7, characterized in that: The support assembly (34) comprises: A first support rod (341), wherein the first support rod (341) is vertically arranged on the conveying chain (31); A second support rod (342), the second support rod (342) being vertically arranged on the upper end surface of the first support rod (341); A guide cylinder (343), wherein the guide cylinder (343) is vertically arranged at the upper end of the second support rod (342); A plurality of arc-shaped spring pieces (344) are vertically arranged, and the plurality of arc-shaped spring pieces (344) are arranged around the second support rod (342), and the upper portion of the arc-shaped spring piece (344) is bent toward the second support rod (342), and the arc-shaped spring piece (344) is used to clamp the inner side wall of the bottle cap; A return spring (345), wherein the return spring (345) is arranged horizontally, and two ends of the return spring (345) are respectively connected to the inner wall of the arc-shaped spring sheet (344) and the second support rod (342).

10. The UV curing heat recovery and utilization device according to claim 7, characterized in that: The support assembly (34) further comprises: A connecting member (346), wherein the connecting member (346) is sleeved on the first supporting rod (341); The roller (347) is rotatably disposed on both sides of the connecting member (346), and the roller (347) is rollably disposed on the top side of the guide rail (35).

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