阅读说明：本技术 冷却系统 (Cooling system ) 是由 杨东生 于 2020-07-15 设计创作，主要内容包括：本发明公开了一种冷却系统,包括外壳、位于外壳内部的水平传动单元和竖直传动单元,以及制冷单元和与制冷单元连通的风道,所述风道与所述冷却系统内部的冷却空间连通,并包围所述冷却空间。本发明的冷却系统的有益效果在于：在形成冷却空间的同时,在冷却空间外围再设置冷却层,但仅通过一个制冷设备和风道的设计来实现,结构简单,制冷效果优异；通过水平传动单元和竖直传动单元的组合,最大限度合理利用冷却空间,同时因为结构简单,可以根据产量和场地的需要灵活调整传动单元的组合方式和数量；整体循环的风道使得系统内的湿空气能够随风道循环进入集中除湿设备后湿度迅速降低,具有很显著的干燥除湿效果等。(The invention discloses a cooling system which comprises a shell, a horizontal transmission unit, a vertical transmission unit, a refrigeration unit and an air channel, wherein the horizontal transmission unit and the vertical transmission unit are positioned in the shell, the refrigeration unit is communicated with a cooling space in the cooling system, and the air channel surrounds the cooling space. The cooling system of the invention has the advantages that: when a cooling space is formed, a cooling layer is arranged on the periphery of the cooling space, but the cooling space is realized only through the design of a refrigerating device and an air duct, the structure is simple, and the refrigerating effect is excellent; through the combination of the horizontal transmission unit and the vertical transmission unit, the cooling space is reasonably utilized to the maximum extent, and meanwhile, because the structure is simple, the combination mode and the number of the transmission units can be flexibly adjusted according to the requirements of yield and site; the integrally circulating air duct enables the humidity of the wet air in the system to be rapidly reduced after the wet air enters the centralized dehumidification equipment along with the circulation of the air duct, and the air duct has a remarkable drying and dehumidification effect and the like.)

1. Cooling system, including the shell, be located the inside horizontal drive unit and the vertical drive unit of shell to and the refrigeration unit and with the wind channel of refrigeration unit intercommunication, its characterized in that: the air duct is communicated with a cooling space inside the cooling system and surrounds the cooling space.

2. The cooling system according to claim 1, wherein: the air duct comprises a top air duct, and an air adjusting through hole is formed in a bottom plate of the top air duct and communicated with the cooling space.

3. The cooling system according to claim 2, wherein: the air duct further comprises a side air duct communicated with the top air duct, and the top air duct and the side air duct surround the cooling space.

4. The cooling system according to claim 3, wherein: the side air channel comprises a first side air channel and a second side air channel, the first side air channel, the top air channel and the second side air channel are sequentially communicated, and cold air from the refrigeration unit enters the top air channel through the first side air channel.

5. The cooling system according to claim 2, wherein: the air adjusting through holes are distributed on two sides of the bottom plate along the length direction.

6. The cooling system according to any one of claims 1 to 5, wherein: the horizontal transmission unit comprises a first horizontal transmission unit and a second horizontal transmission unit, the first horizontal transmission unit inputs the chocolate molds into the cooling space, and the second horizontal transmission unit outputs the chocolate molds from the cooling space.

7. The cooling system according to claim 6, wherein: the first horizontal transmission unit and the second horizontal transmission unit are opposite in transmission direction, and the first horizontal transmission unit is located above the second horizontal transmission unit.

8. The cooling system according to claim 6, wherein: the vertical transmission unit comprises a first vertical transmission unit and a second vertical transmission unit, and the first vertical transmission unit receives the chocolate molds transported from the horizontal direction and transports the chocolate molds vertically upwards; the second vertical driving unit receives the chocolate molds transported from the horizontal direction and transports the chocolate molds vertically downward.

9. The cooling system according to claim 8, wherein: the vertical transmission unit further comprises a third vertical transmission unit which receives the chocolate molds transported from the horizontal direction and transfers the chocolate molds to the second horizontal transmission unit.

10. The cooling system according to claim 9, wherein: the chocolate mould moving device further comprises a horizontal mould moving unit which moves the chocolate mould from the first vertical transmission unit to another adjacent second vertical transmission unit or a third vertical transmission unit.

Technical Field

The invention relates to a food cooling system, in particular to a cooling system suitable for chocolate production.

Background

Cooling equipment is required in the production process of chocolate, and even the simplest chocolate product at least needs to be subjected to the basic steps of melting, forming and cooling; complex chocolate products, such as multilayer chocolate, chocolate requiring a heat transfer pattern, chocolate products requiring combination with other food materials, etc., may require multiple cooling or even a process of cooling after heating until a finished product is obtained. Therefore, the efficiency of the cooling equipment in the chocolate production process determines the quality and efficiency of the product.

The chinese patent application publication No. CN105658078A discloses a chocolate production system, which is an annular circulation equipment production line having a plurality of temperature control chambers for cooling chocolate at different stages, because the production line has a circulation property, the stagnation or pause of any equipment will affect the operation of other equipment on the production line, especially the operation time, and the cooling of chocolate requires a specific time, and once the cooling time is extended or shortened due to an accident, the subsequent production steps will be affected and the quality of chocolate will be affected.

Chinese utility model publication No. CN210417993U discloses a multilayer chain transmission cooling device, which separates the space inside the cooling device into multiple layers and resets the positions of the refrigeration device and the refrigeration space to realize the effect of uniform refrigeration, but the structure is still complicated, and a mold needs to be manually packed.

Chinese utility model patent publication No. CN202364781U discloses a food tunnel cooling device, which is additionally provided with a radiation plate, so that cooling air flow can not directly blow to a product which is not solidified yet, and the product is prevented from deforming in the cooling process. However, the means of transferring heat by means of radiant panels are not practically efficient, especially in the cooling of chocolate, which is even less effective if only close to the upper surface of the chocolate.

Chinese patent application publication No. CN110140787A discloses a cooling forming apparatus for chocolate, which comprises cooling devices with different cooling temperatures, and chocolate molds sequentially pass through the respective independent cooling devices with different temperatures to achieve cooling forming of chocolate.

Disclosure of Invention

The invention aims to provide a full-automatic cooling system which fully utilizes a cooling space, reduces the occupied area as much as possible, has a good cooling effect and does not need manual operation.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the cooling system comprises a shell, a horizontal transmission unit and a vertical transmission unit which are positioned in the shell, a refrigerating unit and an air channel communicated with the refrigerating unit, wherein the air channel is communicated with a cooling space in the cooling system and surrounds the cooling space.

Further, the air duct comprises a top air duct, and a bottom plate of the top air duct is provided with an air adjusting through hole which is communicated with the cooling space.

Further, the air duct also comprises a side air duct communicated with the top air duct, and the top air duct and the side air duct surround the cooling space.

Furthermore, the side air channel comprises a first side air channel and a second side air channel, the first side air channel, the top air channel and the second side air channel are sequentially communicated, and cold air from the refrigeration unit enters the top air channel through the first side air channel.

Furthermore, the air adjusting through holes are distributed on two sides of the bottom plate along the length direction.

Further, the horizontal transmission unit includes a first horizontal transmission unit which inputs the chocolate mold into the cooling space and a second horizontal transmission unit which outputs the chocolate mold from the cooling space.

Further, the first horizontal transmission unit and the second horizontal transmission unit are opposite in transmission direction, and the first horizontal transmission unit is located above the second horizontal transmission unit.

Further, the vertical transmission unit includes a first vertical transmission unit and a second vertical transmission unit, the first vertical transmission unit receives the chocolate molds transported from the horizontal direction and transports the chocolate molds vertically upward; the second vertical driving unit receives the chocolate molds transported from the horizontal direction and transports the chocolate molds vertically downward.

Further, the vertical transmission unit further comprises a third vertical transmission unit which receives the chocolate molds transported from the horizontal direction and transfers the chocolate molds to the second horizontal transmission unit.

Further, the chocolate mould moving device further comprises a horizontal mould moving unit which moves the chocolate mould from the first vertical transmission unit to another adjacent second vertical transmission unit or a third vertical transmission unit.

Compared with the prior art, the invention has the advantages that:

1. when the cooling space is formed, the cooling layer is arranged on the periphery of the cooling space, but the cooling space is realized only through the design of one refrigerating device and an air duct, the structure is simple, and the refrigerating effect is excellent.

2. The chocolate product is prevented from being directly blown by cold air while being fully cooled, and meanwhile, the mould is always kept in a horizontal state when the mould runs in the system, so that the finished product is prevented from deforming.

3. Through the combination of horizontal drive unit and vertical drive unit, furthest rational utilization cooling space, simultaneously because simple structure has the repetitive unit, can be according to the needs in output and place nimble combination mode and the quantity of adjustment drive unit.

4. The horizontal transmission unit I positively and negatively transmits the chocolate mould, so that the cooling system can be used as terminal equipment of a linear production line which saves more space; when the horizontal transmission unit is transmitted along the same direction, the cooling system can be used as intermediate cooling equipment of an annular or linear production line.

5. Other food processing production lines needing cooling treatment can also adopt the cooling system of the invention, and the application range is wide.

6. The cooling system does not need to be provided with large-scale drying and dehumidifying equipment, the whole circulating air duct of the cooling system enables the humidity of the wet air in the system to be rapidly reduced after the wet air enters the centralized dehumidifying equipment along with the circulation of the air duct, the cooling system has a very obvious drying and dehumidifying effect, and the defect that the quality of products is reduced due to the fact that chocolate products are damped because of overlarge humidity in the cooling system in the prior art is overcome.

Drawings

FIG. 1A is a schematic view (partially in cross-section) of the overall structure of one embodiment of the cooling system of the present invention;

FIG. 1B is a schematic view (partially in cross-section) of the overall structure of another embodiment of the cooling system of the present invention;

FIG. 2 is a schematic view of a portion of the cooling system of the present invention taken in the top view of FIG. 1A;

FIG. 3A is a schematic view of a first vertical drive unit of the cooling system of the present invention;

FIG. 3B is a schematic structural view of a second vertical drive unit of the cooling system of the present invention;

FIG. 3C is a schematic view of a third vertical drive unit of the cooling system of the present invention;

the horizontal transfer units in fig. 3A, 3B, 3C each extend in the a direction (direction perpendicular to the paper surface), which is the transfer direction of the first horizontal transfer unit.

FIG. 4 is a schematic structural view of a horizontal mold-moving unit of the cooling system of the present invention;

FIG. 5 is a schematic top view of the cooling system of the present invention with the top cover removed.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Referring to fig. 1A-5, the cooling system of the present invention comprises a housing 100, the housing 100 having an opening communicating with the outside for facilitating the entrance and exit of a chocolate mold 900, and a chocolate half-product within the chocolate mold 900 that is not solidified or is not completely solidified. The interior of the casing 100 has a relatively closed cooling space, and the openings include a first opening 101 and a second opening 102, the first opening 101 is used for inputting the chocolate mold 900 into the cooling space, and the second opening 102 is used for outputting the chocolate mold 900 from the cooling space. A vertical transmission control motor 200 is provided in the cooling space for controlling the transmission unit vertical transmission unit 300. The horizontal driving unit is used for transporting the chocolate molds 900 in a horizontal direction, and comprises a first horizontal driving unit 610 and a second horizontal driving unit 620, wherein the first horizontal driving unit 610 inputs the chocolate molds 900 into the cooling system through the first opening 101, and the second horizontal driving unit 620 outputs the chocolate molds 900 out of the cooling system through the second opening 102. As shown in fig. 1A, in one embodiment, when the cooling system is located at the end of the whole chocolate production line, i.e. the cooling system is connected to other equipment only on one side in the horizontal direction, the first opening 101 and the second opening 102 are located on the same side of the cooling system, the driving direction of the first horizontal driving unit 610 is opposite to that of the second horizontal driving unit 620, and the first horizontal driving unit 610 is located above the second horizontal driving unit 620. In another embodiment, as shown in fig. 1B, the cooling system is located in the middle of the whole chocolate production line, i.e. when the cooling system is connected to other devices on both sides in the horizontal direction, the first opening 101 and the second opening 102' are located on both sides of the cooling system, respectively, and the first horizontal transmission unit 610 and the second horizontal transmission unit 620 have opposite transmission directions.

A vertical driving unit 300 is further provided in the cooling space for transporting the chocolate molds 900 in a vertical direction. The vertical transmission unit 300 includes a first vertical transmission unit 310, a second vertical transmission unit 320, and a third vertical transmission unit 330. The first vertical driving unit 310 is used for receiving the chocolate molds 900 horizontally transported from the first horizontal driving unit 610 and transporting the chocolate molds 900 vertically upwards; the second vertical driving unit 320 is used for receiving the chocolate molds 900 conveyed from the top of the first vertical driving unit 310 in the horizontal direction and vertically conveying the chocolate molds 900 downwards to the upper surface of the first horizontal driving unit 610; the third vertical driving unit 330 is used for receiving the chocolate molds 900 transported from the horizontal direction and transferring the chocolate molds 900 vertically downward to the upper surface of the second horizontal driving unit 620. In one embodiment, when the cooling system is located at the end of the whole chocolate production line, the first vertical transmission units 310 and the second vertical transmission units 320 are provided in several and are arranged side by side in an alternating manner, that is, the right side of the first vertical transmission unit 310 is adjacent to the left side of the first second vertical transmission unit 320, the right side of the first second vertical transmission unit 320 is adjacent to the left side of the second first vertical transmission unit 310 … …, and so on, and the right side of the last first vertical transmission unit 310 is adjacent to the left side of the third vertical transmission unit 330. In another embodiment, when the cooling system is connected to other apparatuses at both ends in the horizontal direction, the right side of the last first vertical transmission unit 310 is still adjacent to the left side of the last second vertical transmission unit 320, and the last second vertical transmission unit 320 is used to receive the chocolate mold 900 horizontally transported from the last first vertical transmission unit 310 and transfer the chocolate mold 900 to the first horizontal transmission unit 610, and the chocolate mold 900 is continuously moved to the apparatus connected to the right side of the cooling system. In other embodiments, if space allows, two or more horizontal transmission units can be arranged in parallel according to production capacity, and each horizontal transmission unit is matched with one group of vertical transmission units; even vertical drive units of the set of vertical drive units for reciprocating transfer of chocolate moulds on two or more horizontal drive units may be provided, and in any case, the principle is to try to run as long a line as possible in the cooling space for sufficient cooling, so that the first vertical drive unit 310 and the second vertical drive unit 320 preferably have the same number and the same spacing of the carriers 303.

In one embodiment, the vertical transmission unit 300 comprises a gear 301, a transmission chain 302, a supporting member 303 and a rotating shaft 304, the gear 301 rotates around the rotating shaft 304 and drives the transmission chain 302 to circulate in a vertical plane, the transmission chain 302 is provided with a plurality of supporting members 303, and the supporting members 303 lift the chocolate mold plate 900 to ascend or descend along with the circulating rotation of the transmission chain 302. In order to keep the chocolate template stable, each vertical transmission unit comprises 8 groups of gears 301 and 4 groups of transmission chains 302, so that an approximately cuboid transmission space is formed; in one embodiment, the supports 303 are symmetrically arranged pairs, each pair of supports 303 being adapted to hold a set of chocolate moulds 900. as shown in fig. 2, a set of chocolate moulds 900 may be 2 chocolate moulds 900 placed side by side on the same pair of supports 303. In other embodiments, the supporting member 303 may also be a device for temporarily fixing the chocolate mold 900 in other manners, such as a robot capable of grasping and holding the chocolate mold 900 for a period of time or a working stroke, and the like, which will not be described herein again.

In one embodiment, the height of the first vertical transmission unit 310 in the vertical direction is the same as the height of the second vertical transmission unit 320 in the vertical direction, i.e. H1 is H2, and in order to keep stable during the horizontal movement of the chocolate mold 900, the first vertical transmission unit 310 is slightly higher than the second vertical transmission unit 320, i.e. there is a height difference H4 between them, so that the chocolate mold 900 moves from the top of the first vertical transmission unit 310 to the top of the second vertical transmission unit 320, because the chocolate mold 900 from the first vertical transmission unit 310 does not need to move over the gear 304 completely and then moves onto the second vertical transmission unit 320, and the second vertical transmission unit 320 is responsible for receiving the supporting member 303 of the chocolate mold 900 when it can move to the top of the gear 304, so there is a height difference H4 between the two gears, which improves the safety when transferring the mold, accidents are avoided; meanwhile, in the cooling system having the third vertical transfer unit 330, the height of the third vertical transfer unit 330 in the vertical direction is greater than that of the first vertical transfer unit 310, i.e., H3> H1, and H3-H1 ≧ H5, H5 being the distance between the upper surface 611 of the first horizontal transfer unit 610 and the upper surface 621 of the second horizontal transfer unit 620, so that the chocolate mold 900 moves downward through the third vertical transfer unit 330 until it falls on the upper surface 621 of the second horizontal transfer unit 620.

In one embodiment, the vertical transmission units 300 further comprise a drop-prevention assembly for preventing chocolate molds 900 from being displaced between two adjacent vertical transmission units to cause jamming or dropping, the drop-prevention assembly comprising: under the prerequisite that does not influence chocolate mould 900 from vertical drive unit 300 top or bottom horizontal migration, the setting is at vertical drive unit 300 middle part, the blend stop 305 that extends along vertical direction, and the fixed auxiliary pallet 306 that is located vertical drive unit top, auxiliary pallet 306 is used for filling the space between the adjacent vertical drive unit, prevent that chocolate mould 900 from dropping or blocking in the space from this space at the in-process of horizontal transfer, the top surface of auxiliary pallet 306 is located same horizontal plane with the contact surface that is used for lifting chocolate mould 900 of the supporting piece 303 of moving to vertical drive unit top, make chocolate mould 900 more smooth and easy at the in-process of horizontal transfer.

The cooling system has a horizontal transfer unit 400 for horizontally moving the chocolate molds 900 from the top of one vertical drive unit to the top of another adjacent vertical drive unit; the horizontal transfer unit 400 may be any component capable of horizontally pushing the chocolate mold 900, such as a flat plate, a push rod, a slider, and the like. In one embodiment, the horizontal mold moving unit 400 comprises a sliding block 401 capable of sliding back and forth on the horizontal frame driven by a motor and a mold moving part 402 connected with the sliding block 401, the sliding block 401 drives the mold moving part 402 to horizontally push the chocolate mold 900 under the drive of the motor until the chocolate mold 900 completely moves to the top of the adjacent vertical transmission unit, and the sliding block 401 drives the mold moving part 402 to return to the original position under the drive of the motor to prepare for the next mold moving.

Accordingly, in order to enable the chocolate mold 900 to continuously move in the cooling space without interruption, it is also necessary to provide a device capable of horizontally moving the chocolate mold 900 at the bottom of the vertical driving unit 300, and of course, the horizontal moving mold unit 400 may be correspondingly disposed at the bottom of the chocolate mold, or the horizontal driving unit may be directly used, so that the horizontal movement of the horizontal driving unit is fully utilized, and the bottom moving mold unit does not need to be additionally disposed, thereby saving space and simplifying the structure. Specifically, when the chocolate mold 900 moves from the top to the bottom of one vertical driving unit from the top, and does not stop moving, it continues to move downward a small distance until the chocolate mold 900 completely falls on the upper surface of the horizontal driving unit, and in one embodiment, the chocolate mold 900 moves downward to the upper surface 611 of the first horizontal driving unit 610 and moves to the bottom of the next vertical driving unit in the horizontal direction, and starts moving upward from the bottom of the vertical driving unit. In one embodiment, the chocolate mold 900 moves downward in the second vertical driving unit 320 to the upper surface 611 of the first horizontal driving unit 610, and then moves horizontally by the first horizontal driving unit 610 to the next adjacent first vertical driving unit 310, and moves upward by being lifted by the supporter 303 of the first vertical driving unit 310. After repeating the above steps for several times, the chocolate product in the chocolate mold 900 can be cooled and molded and then output from the second outlet 102.

In one embodiment, the chocolate mold 900 moves horizontally to the top of the third vertical transmission unit 330 after moving upward from the last first vertical transmission unit 310 to the top, and is lifted by the supporter 303 at the top of the third vertical transmission unit 330 and moves downward, passes over the first horizontal transmission unit 610 and continues to descend onto the upper surface 621 of the second horizontal transmission unit 620, and is reversely output to the second opening 102 by the second horizontal transmission unit 620. Thus, the cooling system can be used as the end equipment of the production line, and the chocolate molds are returned by the cooling system, so that the linear production line is constructed, and the floor area of the production line is saved. In another embodiment, the chocolate mold 900 moves upwards to the top from the last first vertical transmission unit 310, then moves horizontally to the top of the last second vertical transmission unit 320, and is lifted by the supporting member 303 at the top of the second vertical transmission unit 320 to move downwards until the chocolate mold 900 falls on the upper surface of the first horizontal transmission unit 610 or other horizontal transmission units driven in the same direction and is horizontally output from the other side of the cooling system, and the cooling system is used as an intermediate device of the production line and can be continuously connected with other devices.

The structure simultaneously ensures that no matter the chocolate mould 900 moves in the horizontal direction or the vertical direction, the horizontal state is kept unchanged, and the chocolate mould 900 cannot incline or vibrate, so that the quality of chocolate products is influenced.

In addition to the above-mentioned transmission unit, another important structure of the cooling system is the arrangement of the air duct, and in one embodiment, the air duct of the cooling system of the present invention both supplies cold air to the cooling space and surrounds the cooling space. The air ducts include at least a top air duct and a side air duct, and these air ducts communicate with each other and surround the cooling space from the top and the side. Specifically, the cooling system includes a refrigeration unit 500, a first side air duct 710, a top air duct 750 with a top cover, and a second side air duct 720, the refrigeration unit 500 is communicated with the top air duct 750 through the first side air duct 710, wherein the first side air duct 710 and the second side air duct 720 are respectively located at two ends of the horizontal transmission unit in the extending direction, and the top cover of the top air duct 750 seals the cooling system at the top. The refrigeration unit 500 includes a refrigeration component 510 and an evaporation component 520, the refrigeration component 510 inputs refrigerant into the evaporation component 520, the evaporation component 520 is located at the lower part of the first side air duct 710, a fan 760 is arranged at the upper part of the first side air duct 710, the fan 760 sucks cold air from the evaporation component 520 through the first side air duct 710, a wind shield 701 is arranged between the first side air duct 710 and the top air duct 750, the cold air is introduced into the top air duct 750 through the wind shield 701, the parts of the top air duct 750 except for the bottom plate 751 are all sealed, the bottom plate 751 is provided with an air adjusting through hole 752, the air adjusting through hole 752 is located close to the side edge of the bottom plate 751 in the length direction and corresponds to two sides of the horizontal transmission unit, that is, the cold air is shunt. Meanwhile, the second side air passage 720 communicates with the first opening 101, so that cool air can be blown downward-horizontally from the second side air passage 720 in addition to being blown into the transmission unit from the air-adjusting through-hole 752. The evaporation assembly 520 is used as a condensation drying device, when the internal circulation air passes through the evaporation assembly 520, the moisture in the air is condensed into water on the surface of the evaporation assembly 520, the condensed water is discharged from the drain pipe of the evaporation assembly 520 in a concentrated mode, the purpose of dehumidification of the internal circulation air is achieved, the dehumidified dry air continues to enter the circulation from the first side air channel 710, and therefore the circulating cooling air flow is formed. Thus, a good overall dehumidification effect can be achieved by using only the evaporation device 520 provided in the circulation duct as a dehumidification device without providing a plurality of or a large-scale dehumidification device in the cooling system.

In one embodiment, the refrigeration unit 500 is located at the lower edge of the cooling system, and the cold air may start to circulate after entering the first side air duct 710 through the shortest path. In other embodiments, the refrigeration unit 500 may be located at other positions, but the cool air cannot circulate in the same direction during the circulation process, so that the cool air is lost, or the path of the cool air is extended, thereby reducing the cool air utilization rate. Due to the naturally sinking nature of the air, it is also the most cost effective way to deliver air to the cooled space through the top duct. In some embodiments, the second side air duct 720 may not be provided, and the cooling air enters the top air duct 750 through the first side air duct 710 and then sinks to the cooling space, and only the top air duct 750 and the first side air duct 710 surround the cooling space, so the cooling effect is slightly inferior to that of the scheme with the second side air duct 720.

The air adjusting through holes 752 are close to two sides of the bottom plate 751 and have at least two functions, firstly, cold air enters the cooling space through the air adjusting through holes 752, namely, enters from two sides of the cooling space, so that the whole cooling space is uniformly and quickly cooled; secondly, the cold air is not directly blown to the upper surface of the chocolate mold 900 as much as possible, so that the quality of the chocolate is not affected by the excessive cold air received by the chocolate semi-finished product in the upper chocolate mold 900, and the cold air is hardly smoothly blown from the middle due to the plurality of chocolate molds 900 stacked in the cooling space. The chocolate mould 900 is completely wrapped in the cold air due to the arrangement of the air channel, constant-temperature refrigeration is basically realized in the cooling space, and the same cooling effect can be obtained no matter which position the chocolate mould runs to. In one embodiment, the cooling system is the end of the chocolate production line, and the refrigeration unit 500 is disposed at the end of the cooling system without affecting the connection, installation or operation of other equipment; in another embodiment, where the cooling system is located in the middle of the chocolate manufacturing line, the refrigeration unit 500 may be located at the top (as shown in FIG. 1B), bottom, side, or otherwise not interfering with the connection of other equipment to the cooling system, allowing the cooling system to be interconnected with other equipment on the manufacturing line.

All the devices in the invention can be accurately controlled by the programmable controller 800 to realize full-automatic cooling without manual operation.