A smart heat dissipation system for a bread production line and its working method

Abstract

This invention provides an intelligent heat dissipation system and its operating method for a bread production line. The heat dissipation system includes a turning conveyor, a straight conveyor, a turning device, and a heat dissipation device. The heat dissipation device cools the surface of the straight conveyor. During operation, bread is fed onto one of the straight conveyors, conveyed to the turning conveyor, and then from the turning conveyor to another straight conveyor for unloading. During this process, the turning device turns the bread over on the turning conveyor, so that one side of the bread is conveyed face down on one of the straight conveyors, and then the other side of the bread is conveyed face down on the other straight conveyor. This allows both sides of the bread to exchange heat with the two straight conveyors through contact, thus forming a cooling method. Compared with air blowing, this contact-based heat dissipation method is less likely to damage the appearance of the bread and helps to improve the yield of bread production.

Description

Technical Field

[0001] This invention relates to the field of bread production technology, and in particular to an intelligent heat dissipation system for a bread production line and its working method. Background Technology

[0002] The fully automated bread production process includes mixing, rolling, proofing, baking, cooling, and packaging. This process is generally carried out continuously on a production line. If natural cooling is used after the bread has been baked at high temperatures, a very long conveyor belt would be required. Therefore, most production lines currently use a blowing method for heat dissipation. Generally, a fan is placed above the conveyor belt to blow directly onto the bread as it is being transported. If the airflow is too weak, the heat dissipation effect is poor; if the airflow is too strong, the air pressure can easily deform the freshly baked, fluffy bread, affecting its appearance and consequently the yield. Summary of the Invention

[0003] To address the shortcomings mentioned above in the background technology, the present invention provides an intelligent heat dissipation system for a bread production line and its operating method.

[0004] The present invention adopts the following technical solution:

[0005] In a first aspect, the present invention provides an intelligent heat dissipation system for a bread production line, characterized in that the heat dissipation system includes a turning conveyor, a straight conveyor, a turning device, and a heat dissipation device, wherein both ends of the turning conveyor are connected to the straight conveyor, and both straight conveyors are equipped with the heat dissipation device; wherein...

[0006] The linear conveyor includes a first frame, running rollers, transition rollers, a support plate, and a conveyor belt. A row of running rollers is arranged at the top of the first frame. Transition rollers are arranged below each pair of adjacent running rollers in the first frame. The conveyor belt passes over the top of each running roller and the bottom of each transition roller in sequence. A support plate is arranged between each pair of adjacent running rollers in the first frame, so that the support plate connects to the surface of the conveyor belt outside the two adjacent running rollers. The transition rollers, the conveyor belt surfaces on both sides above the transition rollers, and the support plate form a heat dissipation space.

[0007] The heat dissipation device includes a diffuser pipe, an intake branch pipe, and a cooling fan. The diffuser pipe is installed in each of the heat dissipation spaces, and exhaust holes are provided on both sides of the diffuser pipe. The two ends of the diffuser pipe extend out of the two sides of the first frame, and the diffuser pipe is connected to the air outlet of the cooling fan through the intake branch pipe, so that the cooling fan blows cold air to each of the heat dissipation spaces.

[0008] The flipping device includes a flipping plate, an inner limit rod, an outer limit rod, a side baffle mechanism, and a flipping cam. The flipping plate is fixed on the linear conveyor connected to the starting end of the turning conveyor. The flipping plate is a curved surface structure with both ends of a flat plate twisted at 90 degrees relative to each other, so that the two ends of the flipping plate form a horizontal end and a vertical end that are perpendicular to each other. The horizontal end is connected parallel to a support plate, so that the surface of the flipping plate forms a flipping curved surface that transitions from the horizontal surface to the vertical surface along the conveying direction of the linear conveyor. The side baffle mechanism is fixed on the other side of the flipping plate opposite to the vertical end. The inner limit rod and the outer limit rod are both fixed above the turning conveyor, and the inner limit rod and the outer limit rod are respectively connected to the two sides of the flipping plate. The inner limit rod is longer than the outer limit rod, and the outer limit rod gradually extends downward away from the flipping plate. The flipping cam is set on the side of the turning conveyor near the inner limit rod and rotates, and the end of the flipping cam flips between the inner limit rod and the outer limit rod.

[0009] In a possible implementation of the first aspect, the intake branch pipe is fixed to one side of the first frame, and one end of each of the air diffusers is connected to the intake branch pipe, the other end of each of the air diffusers is closed, one end of the intake branch pipe is connected to the air outlet of the cooling fan, and the other end of the intake branch pipe is closed.

[0010] In one possible implementation of the first aspect, the heat dissipation device further includes a cooling chamber, the cooling fan is fixed in the cooling chamber, and the cooling chamber is provided with an evaporator, a condenser and a compressor connected in sequence. The top of the cooling chamber is provided with heat dissipation holes corresponding to the evaporator, and the air inlet of the cooling fan faces the condenser.

[0011] In one possible implementation of the first aspect, the side blocking mechanism is a side conveyor, which is vertically fixed on the first frame and located on the side of the flip plate opposite the vertical end. The conveying surface of the side conveyor toward the flip plate is moved from the straight conveyor to the turning conveyor.

[0012] In one possible implementation of the first aspect, a guide plate is provided on the straight conveyor connected to the starting end of the turning conveyor. The guide plate is fixed to the first frame and is inclined relative to the side of the first frame. The distance between the guide plate and the first frame near the flip plate gradually narrows.

[0013] In one possible implementation of the first aspect, a connecting rod is provided on the side of the guide plate facing away from the flip plate. One end of the connecting rod is fixed to the first frame, and the other end of the connecting rod is pivotally connected to a connector. A C-shaped groove is provided on the back of the guide plate, and the connector is adapted to slide and then fixed within the groove.

[0014] In one possible implementation of the first aspect, the horizontal end of the flip plate is bent downward to form an insert portion, the insert portion is fitted onto the edge of the support plate, and the lower end of the insert portion extends below the surface of the conveyor belt on the running roller, and the vertical end of the flip plate is hinged to the end of the guide plate.

[0015] In one possible implementation of the first aspect, one end of the inner limiting rod is fixed to the end face of the vertical end of the flip plate, and the other end of the inner limiting rod is fixed to the support frame. The support frame is connected to the connecting plate fixed on the side of the first frame, and the support frame is restricted to linear movement relative to the first frame on the connecting plate and then fixed.

[0016] In one possible implementation of the first aspect, the flipping device further includes a rotary motor, a central fixed mounting plate of the turning conveyor, the rotary motor being fixed to the mounting plate, and the output shaft of the rotary motor being connected to the flipping cam.

[0017] Secondly, the present invention also discloses a method for operating the above-mentioned heat dissipation system, which is as follows:

[0018] The heat dissipation devices configured on the two linear conveyors start working, causing the cooling fan to deliver cold air to each air inlet branch pipe, and then blow the cold air through each air diffuser pipe into each heat dissipation space of the linear conveyor, so that the temperature of the conveyor belt and the support plate forming the heat dissipation space drops to a low temperature state.

[0019] One loaf of bread is placed on the linear conveyor connected to the starting end of the curved conveyor, so that one side of the bread is in contact with the support plate and the conveyor belt while being conveyed, allowing one side of the bread to dissipate heat through cooling.

[0020] When the bread passes through the flipping device, the surface of the flipping plate is guided to flip 90° to the side, and then flips 90° again when it passes through the inner limit rod and the outer limit rod, so that the bread is flipped on the turning conveyor and the other side is facing down.

[0021] When the bread is conveyed to another linear conveyor, the other side of the bread (i.e., the side that is flipped over and facing down) is conveyed while being attached to the linear conveyor and comes into contact with the support plate and the conveyor belt of the linear conveyor, so that the other side of the bread dissipates heat through cooling.

[0022] As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: The present invention utilizes a heat dissipation device to cool the surface of the linear conveyors, so that the conveying surfaces of both linear conveyors form low-temperature surfaces. During operation, bread is fed onto one of the linear conveyors, conveyed to a turning conveyor, and then from the turning conveyor to another linear conveyor for unloading. During this process, a flipping device flips the bread on the turning conveyor, so that one side of the bread is conveyed face down on one of the linear conveyors, and then the other side is conveyed face down on the other linear conveyor. This results in the two sides of the bread being conveyed in contact with the two linear conveyors, allowing for heat exchange and thus a cooling method. Compared with air blowing, this contact-based cooling method is less likely to damage the appearance of the bread, allowing it to maintain its shape during the cooling process, which is beneficial for improving the yield of bread production. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 2 for Figure 1 A magnified diagram of point A in the middle.

[0025] Figure 3 This is a schematic side cross-sectional view of the end of a linear conveyor.

[0026] Figure 4 A three-dimensional structural diagram of a linear conveyor connected to one end of a turning conveyor.

[0027] Figure 5 for Figure 4 A magnified diagram of point B in the middle.

[0028] Figure 6 This is a schematic diagram of the heat dissipation device inside the refrigeration chamber.

[0029] Figure 7 This is a schematic diagram showing the connection between the intake branch pipe and the various air distribution pipes and the refrigeration chamber.

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the flip panel.

[0031] Figure 9 A schematic diagram showing the flipping device installed on a turning conveyor and a straight conveyor.

[0032] Figure 10 for Figure 9 A magnified diagram of point C.

[0033] Figure 11 for Figure 9 A magnified diagram of point D in the middle.

[0034] Figure 12 A cross-sectional view showing the connection between the connector, guide plate, and connecting rod. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0036] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0037] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0038] This invention provides an intelligent heat dissipation system for a bread production line, as shown in the attached figure. Figure 1 and 2 As shown, the heat dissipation system includes a turning conveyor 1, a straight conveyor 2, a turning device, and a heat dissipation device 4. Both ends of the turning conveyor 1 are connected to the straight conveyors 2, and both straight conveyors 2 are equipped with heat dissipation devices 4 to cool the surface of the straight conveyors 2. The turning conveyor 1 can be a 180° turning belt conveyor or a 90° turning belt conveyor; in this embodiment, a 180° turning belt conveyor is preferred. During operation, bread is fed onto one of the straight conveyors 2, transported to the turning conveyor 1, and then transported from the turning conveyor 1 to the other straight conveyor 2 for unloading. During this transport process between the two straight conveyors 2, the bread exchanges heat with them, achieving heat dissipation and cooling.

[0039] As attached Figure 3 and 4As shown, the linear conveyor 2 includes a first frame 21, running rollers 22, transition rollers 23, a support plate 24, and a conveyor belt 25. A row of running rollers 22 is arranged at the top of the first frame 21. Specifically, both ends of the running rollers 22 can pass through the crossbeams on both sides of the first frame 21, and both ends of the running rollers 22 are inserted into and fixed to bearing seats fixed outside the crossbeams to restrict their rotation. Transition rollers 23 are arranged below each pair of adjacent running rollers 22 within the first frame 21. The transition rollers 23 are connected to bearing seats fixed outside the crossbeams in the same manner as the running rollers 22. The conveyor belt 25 sequentially passes over the top of each running roller 22 and the bottom of each transition roller 23, then passes over the drive rollers on both sides of the bottom of the first frame 21 to form a closed loop. The conveyor belt 25 is driven by a motor rotating one of the drive rollers. The first frame 21 also has a support plate 24 between each pair of adjacent running rollers 22. The support plate 24 can be fixed by inserting bolts from the outside to the inside of the crossbeam of the first frame 21 and spirally connecting the support plate 24, thereby allowing the support plate 24 to connect with the surface of the conveyor belt 25 outside the adjacent two running rollers 22. Furthermore, the transition roller 23, the surface of the conveyor belt 25 on both sides above the transition roller 23, and the support plate 24 form a heat dissipation space 201. Preferably, the upper surface of the support plate 24 can be slightly lower than the top surface of the conveyor belt 25 outside the running rollers 22 by 1-2 mm. This structure allows the soft bread to contact the conveyor belt 25 when placed on the linear conveyor 2, thus moving forward under the operation of the conveyor belt 25. It is worth mentioning that... Figure 3 The wheelbase of the two adjacent running rollers 22 and the width of the support plate 24 shown can be customized as needed to design a corresponding linear conveyor 2 according to the bread size production requirements of the bread production line.

[0040] As attached Figure 6 As shown, the heat dissipation device 4 includes a vent pipe 41, an inlet branch pipe 42, a cooling fan 43, and a refrigeration chamber 44. The cooling fan 43 is fixed inside the refrigeration chamber 44, which contains a compressor 45, a condenser 46, an expansion valve, and an evaporator 47 connected in sequence. The top of the refrigeration chamber 44 has heat dissipation holes corresponding to the condenser 46, and the air inlet of the cooling fan 43 is connected to the refrigeration chamber 44. During operation, the compressor 45 compresses the refrigerant into a high-temperature, high-pressure gas and sends it into the condenser 46. The condenser 46 releases the heat from the high-temperature, high-pressure refrigerant gas into the outdoor air through heat dissipation, while simultaneously condensing itself into a high-pressure liquid. The high-pressure liquid is depressurized through the expansion valve, becoming a low-temperature, low-pressure wet vapor that enters the evaporator 47. In the evaporator 47, the refrigerant absorbs heat from the refrigeration chamber 44, lowering the air temperature inside the refrigeration chamber 44. Simultaneously, it evaporates into a gaseous refrigerant, which is then drawn back into the compressor 45, forming a cycle.

[0041] Please refer to the appendix. Figure 3 , 4In each of the heat dissipation spaces 201, a vent pipe 41 is installed, and exhaust holes are provided on both sides of the vent pipe 41. Each vent pipe 41 is connected to the cooling fan 43 through an intake branch pipe 42. The connection method is that the intake branch pipe 42 is fixed to one side of the first frame 21, and one end of each vent pipe 41 is connected to the intake branch pipe 42, while the other end of each vent pipe 41 is closed, thus forming a parallel connection pipeline of each vent pipe 41. One end of the intake branch pipe 42 is connected to the air outlet of the cooling fan 43 through a suitable bend pipe, while the other end of the intake branch pipe 42 is closed, so that the cooling fan 43 can blow the cold air in the cooling chamber 44 into each vent pipe 41, and then blow it into each heat dissipation space 201 through the vent holes on both sides of each vent pipe 41, so that the conveyor belt 25 and the support plate 24 forming the heat dissipation space 201 are cooled down and kept at a low temperature. It is worth mentioning that as the conveyor belt 25 runs, the surface of the conveyor belt 25 that forms the heat dissipation space 201 faces upward after running onto the running roller 22, so that the bread being conveyed directly contacts the cooled conveyor belt 25, which helps to improve the efficiency of bread cooling and heat dissipation.

[0042] Alternatively, the connection between the vent pipe 41 and the intake branch pipe 42 can be such that both ends of the vent pipe 41 extend out of the two sides of the first frame 21 and are connected to U-shaped pipes. Each vent pipe 41 has its two ends connected to a U-shaped pipe, with one end of the U-shaped pipe connected to the preceding vent pipe 41 and the other end connected to the next vent pipe 41. This creates a continuous S-shaped series connection of the vent pipes 41 fixed within the first frame 21. Simultaneously, one of the first and last vent pipes 41 within the first frame 21 is connected to one end of the intake branch pipe 42 at the opposite end of the U-shaped pipe. The other end of the intake branch pipe 42 is connected to the outlet of the cooling fan 43. This allows the cooling fan 43 to blow cold air from the refrigeration chamber 44 into each vent pipe 41.

[0043] Preferably, the present invention may also be configured with a control system for controlling the operation of the actuators included in the linear conveyor 2 and the turning conveyor 1. A temperature sensor may also be installed inside the cooling chamber 44. This temperature sensor senses the temperature inside the cooling chamber 44 in real time and sends the temperature signal to the control system. The control system then sends the received temperature signal to the screen on the control cabinet for display. Preferably, the screen of the control cabinet may be a touch screen. By operating the screen, the compressor 45, condenser 46, expansion valve, and evaporator 47 can be controlled to adjust the temperature of the cold air inside the cooling chamber 44 and the cooling fan 43 can be controlled to adjust the air pressure entering each heat dissipation space 201, thereby forming an intelligent operation and control system for the heat dissipation system.

[0044] Continue to refer to the appendix Figure 2The flipping device includes a flipping plate 31, an inner limit rod 32, an outer limit rod 33, and a flipping cam 34. The flipping plate 31 is fixed on the linear conveyor 2 connected to the starting end of the turning conveyor 1. (See attached diagram.) Figure 8 The flip plate 31 is a curved panel structure with both ends twisted at 90 degrees, forming a horizontal end 311 and a mutually perpendicular vertical end 312 at its two ends. The horizontal end 311 of the flip plate 31 is connected parallel to a support plate 24, and the vertical end 312 of the flip plate 31 is vertical relative to the support plate 24, thereby forming a flipped curved surface that transitions from a horizontal to a vertical surface along the conveying direction of the linear conveyor 2. (See attached diagram.) Figure 9 The flipping device also includes a side blocking mechanism 35, which is fixed on the other side of the flipping plate 31 opposite to the vertical end. Specifically, the side blocking mechanism 35 can be fixed on the crossbeam of the first frame 21, so that the plane of the side blocking mechanism 35 is vertical relative to the first frame 21. When the bread is conveyed to the flipping plate 31, the front end of the bread rises along the horizontal end of the flipping plate 31, and under the guidance of the flipping plate 31, it flips from a flat position to a vertical position outside the first frame 21 and is blocked by the side blocking mechanism 35. It can be seen that the structure of the flipping plate 31 on the linear conveyor 2 can automatically flip the bread in the conveying process by 90°, and then convey it to the turning conveyor 1. Preferably, the horizontal end of the flipping plate 31 is bent downward to form an insert 311. The insert 311 fits around the edge of the support plate 24, and the lower end of the insert 311 extends below the surface of the conveyor belt 25 on the running roller 22, so that the bread in the conveying process can smoothly transition to the flipping plate 31 without being blocked by the horizontal end.

[0045] Continue to refer to the appendix Figure 9 The side blocking mechanism 35 is a side conveyor, which is vertically fixed on the first frame 21. The conveying surface of the side conveyor facing the flip plate 31 is the blocking surface. The conveying surface of the side conveyor is the direction in which the straight conveyor 2 runs towards the turning conveyor 1. This method can guide and drive the bread that has been flipped on the flip plate 31 and fallen towards the blocking surface to continue to be conveyed to the turning conveyor 1.

[0046] Continue to refer to the appendix Figure 4 A guide plate 26 is provided on the linear conveyor 2 connected to the starting end of the turning conveyor 1. This guide plate 26 is mounted on the first frame 21 and located on the opposite side of the flipping plate 31 relative to the side baffle mechanism 35. The blocking surfaces of the guide plate 26 and the side baffle mechanism 35 are inclined, and the distance between the guide plate 26 and the first frame 21 near the flipping plate 31 gradually narrows. This guides the bread conveyed on the linear conveyor 2 to the horizontal end of the flipping plate 31, ensuring that the bread guided by the guide plate 26 reliably moves from the side of the guide plate 26 onto the flipping plate 31. Further, refer to the attached... Figure 5A connecting rod 27 is also provided on the back of the guide plate 26. An adjustment seat 28 is fixed at the other end of the first frame 21 relative to the side blocking mechanism 35. The adjustment seat 28 has an adjustment hole. One end of the connecting rod 27 passes through the adjustment hole. A notch is provided above the adjustment seat 28 that extends through the adjustment hole. The adjustment seat 28 is spirally connected to the first bolt 281 from the outside to the inside. The first bolt 281 spirally passes through the notch so that the adjustment hole is tightened, thereby fixing one end of the connecting rod 27 to the first frame 21.

[0047] As attached Figure 11 and 12 As shown, the other end of the connecting rod 27 is pivotally connected to the connecting member 29. A C-shaped groove 261 is provided on the back of the guide plate 26. The connecting member 29 is fitted into the groove 261 and then slids and is fixed. The fixing method can be that the connecting member 29 is fitted with a second bolt 291 from top to bottom. A strip-shaped adjustment groove is provided above the groove 261 on the back of the guide plate 26. The second bolt 291 passes through the adjustment groove and is then screwed onto the connecting member 29 for tightening, thus fixing the guide plate 26 relative to the first frame 21. When it is necessary to adjust the position of the guide plate 26 relative to the side stop mechanism 35, the first bolt 281 and the second bolt 291 are loosened, and the position of the connecting rod 27 relative to the adjusting seat 28 and the position of the connecting member relative to the guide plate 26 are adjusted. This allows the position of the guide plate 26 to be adjusted according to the required bread size, so that the bread can be conveyed from between the guide plate 26 and the side stop mechanism 35 to the flipping plate 31.

[0048] In addition, the vertical end of the flip plate 31 and the end of the guide plate 26 are connected by a hinge to form a hinge. Combined with the structure of the insert part 311 of the flip plate 31 being fitted onto the edge of the support plate 24, when the guide plate 26 is adjusted and moved, the flip plate 31 can be moved parallel to the width direction of the linear conveyor 2 without the need to adjust the position of the flip plate 31, which is more convenient.

[0049] As attached Figure 2 , 4 As shown in Figure 9, both the inner limiting rod 32 and the outer limiting rod 33 are fixed above the conveying surface of the turning conveyor 1, and the inner limiting rod 32 and the outer limiting rod 33 are respectively connected to the two sides outside the flipping plate 31. This structure ensures that the bread, after being flipped 90° on the flipping plate 31, is immediately confined between the inner limiting rod 32 and the outer limiting rod 33 when it is conveyed onto the turning conveyor 1, keeping the flipped bread upright during conveying. During this conveying process, the bread either rests against the inner limiting rod 32 or against the outer limiting rod 33. Therefore, in this embodiment, the inner limiting rod 32 is also longer than the outer limiting rod 33, and the outer limiting rod 33 gradually extends downward away from the flipping plate 31. When the bread is conveyed against the outer limiting rod 33, due to the downward extension of the outer limiting rod 33, the bread gradually loses its support and flips down onto the conveying surface of the turning conveyor 1, forming another 90° flip.

[0050] Please refer to the appendix. Figure 10 The flipping device also includes a rotary motor (not shown in the attached drawings), a central fixed mounting plate 11 of the turning conveyor 1, and the rotary motor is fixed to the mounting plate 11. The output shaft of the rotary motor is connected to the flipping cam 34. The rotary motor can drive the flipping cam 34 to rotate, so that the flipping cam 34 is positioned on the side of the turning conveyor 1 near the inner limit rod 32 and rotates. The end of the flipping cam 34 flips to the space between the inner limit rod 32 and the outer limit rod 33. When the bread is conveyed against the inner limit rod 32 or between the inner limit rod 32 and the outer limit rod 33, when the bread moves to the tail of the inner limit rod 32, the rotating flipping cam 34 pushes the top of the bread downwards until the bottom of the bread facing away from the inner limit rod 32 is blocked by the downward-extending end of the outer limit rod 33. This allows the bread to flip down onto the conveying surface of the turning conveyor 1, forming another 90° flip, completing the 180° flipping during the bread conveying process. As can be seen, the structure of the inner limit rod 32, the outer limit rod 33 and the flipping cam 34 can make the bread flip 90° after passing through the flipping plate 31 and then flip 90° again in the same flipping direction, completing the 180° flipping in the bread conveying process. This allows the bread to be cooled and dissipated when it is conveyed to another linear conveyor 2 by the turning conveyor 1.

[0051] In addition, the surface of the mounting plate 11 is provided with multiple strip-shaped mounting holes 111. The output shaft of the rotary motor passes through the middle mounting hole 111, and the fixing bolts 12 for fixing the rotary motor pass through the mounting holes 111 on both sides and are screwed into the rotary motor to fix the rotary motor. When it is necessary to adjust the position of the flipping cam 34 relative to the inner limit rod 32, the position of the rotary motor can be moved along the mounting hole 111 by loosening the fixing bolts, thereby adjusting the position of the flipping cam 34 relative to the inner limit rod 32. This allows the flipping cam 34 to adjust its position relative to the inner limit rod 32 according to the thickness of the bread, preventing the flipping cam 34 from not being able to reach the bread conveyed between the inner limit rod 32 and the outer limit rod 33.

[0052] Continue to refer to the appendix Figure 4One end of the inner limiting rod 32 is fixed to the vertical end face of the flipping plate 31, and the other end is fixed to the support frame 321. The support frame 321 is connected to the connecting plate 36 fixed on the side of the first frame 21, and the support frame 321 is restricted to linear movement relative to the first frame 21 on the connecting plate 36 before being fixed. The fixing method can be as follows: a strip-shaped hole 361 is provided on the connecting plate 36, the length direction of which is parallel to the width direction of the linear conveyor 2; a screw is fixed to the bottom of the support frame 321, and the screw passes through the strip-shaped hole 361 and is screwed to the bottom of the connecting plate 36 until it is tightened, thus achieving fixation. Adjustment can be achieved by loosening the nut. This structure allows the inner limiting rod 32 to move simultaneously with the guide plate 26, which is very convenient.

[0053] This invention provides a method for operating the above-mentioned heat dissipation system, the method of which is as follows:

[0054] The heat dissipation device 4 configured on the two linear conveyors 2 starts to work, so that the cooling fan 43 delivers cold air to each air inlet branch pipe 42, and blows the cold air into each heat dissipation space 201 of the linear conveyor 2 through each air outlet pipe 41, so that the temperature of the conveyor belt 25 and the support plate 24 forming the heat dissipation space 201 drops to form a low temperature state.

[0055] One piece of bread is placed on the linear conveyor 2 connected to the starting end of the turning conveyor 1, so that one side of the bread is in contact with the low-temperature support plate 24 and conveyor belt 25 while being conveyed, thereby forming a heat exchange during the conveying process, allowing one side of the bread to dissipate heat through cooling.

[0056] When the bread passes the surface of the flipping plate 31, it is guided to flip 90° to the side. When it passes the inner limit rod 32 and the outer limit rod 33, it flips 90° again so that the bread is flipped on the turning conveyor 1 and the other side is facing down.

[0057] When the bread is conveyed to another linear conveyor 2, the other side of the bread (i.e. the side that is flipped over and facing down) is conveyed onto the linear conveyor 2 and comes into contact with the low-temperature support plate 24 and conveyor belt 25, thereby forming a heat exchange during the conveying process, so that the other side of the bread dissipates heat through cooling.

[0058] As can be seen from the above working method, when the present invention is working, the flipping device drives the bread to flip on the turning conveyor 1, so that one side of the bread is conveyed on one of the straight conveyors 2 with one side facing down, and then the other side of the bread is conveyed on another straight conveyor 2 with the other side facing down. This forms a way in which the two sides of the bread are respectively attached to the two straight conveyors 2 for conveying. During this conveying process, both straight conveyors 2 use the heat dissipation device 4 to cool the conveyor belt 25 and the support plate 24, so that the two sides of the bread dissipate heat through cooling during the conveying process. Compared with the blowing method, this contact heat dissipation method is less likely to damage the appearance of the bread, and can keep the bread with its complete shape during the heat dissipation process, which is conducive to improving the yield of bread production.

[0059] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. An intelligent heat dissipation system for a bread production line, characterized in that, The cooling system includes a turning conveyor, a straight conveyor, a turning device, and a cooling device. Both ends of the turning conveyor are connected to the straight conveyors, and both straight conveyors are equipped with the cooling device. The linear conveyor includes a first frame, running rollers, transition rollers, a support plate, and a conveyor belt. A row of running rollers is arranged at the top of the first frame. Transition rollers are arranged below each pair of adjacent running rollers in the first frame. The conveyor belt passes over the top of each running roller and the bottom of each transition roller in sequence. A support plate is arranged between each pair of adjacent running rollers in the first frame, so that the support plate connects to the surface of the conveyor belt outside the two adjacent running rollers. The transition rollers, the conveyor belt surfaces on both sides above the transition rollers, and the support plate form a heat dissipation space. The heat dissipation device includes a diffuser pipe, an intake branch pipe, and a cooling fan. The diffuser pipe is installed in each of the heat dissipation spaces, and exhaust holes are provided on both sides of the diffuser pipe. The two ends of the diffuser pipe extend out of the two sides of the first frame, and the diffuser pipe is connected to the air outlet of the cooling fan through the intake branch pipe, so that the cooling fan blows cold air to each of the heat dissipation spaces. The flipping device includes a flipping plate, an inner limit rod, an outer limit rod, a side baffle mechanism, and a flipping cam. The flipping plate is fixed on the linear conveyor connected to the starting end of the turning conveyor. The flipping plate is a curved surface structure with both ends of a flat plate twisted at 90° relative to each other, so that the two ends of the flipping plate form a horizontal end and a vertical end that are perpendicular to each other. The horizontal end is connected parallel to a support plate, so that the surface of the flipping plate forms a flipping curved surface that transitions from the horizontal surface to the vertical surface along the conveying direction of the linear conveyor. The side baffle mechanism is fixed on the other side of the flipping plate opposite to the vertical end. The inner limit rod and the outer limit rod are both fixed above the turning conveyor, and the inner limit rod and the outer limit rod are respectively connected to the two sides of the flipping plate. The inner limit rod is longer than the outer limit rod, and the outer limit rod gradually extends downward away from the flipping plate. The flipping cam is set on the side of the turning conveyor near the inner limit rod and rotates, and the end of the flipping cam flips between the inner limit rod and the outer limit rod.

2. The heat dissipation system as described in claim 1, characterized in that, The intake branch pipe is fixed to one side of the first frame, and one end of each of the air diffusers is connected to the intake branch pipe, while the other end of each of the air diffusers is closed. One end of the intake branch pipe is connected to the air outlet of the cooling fan, while the other end of the intake branch pipe is closed.

3. The heat dissipation system as described in claim 2, characterized in that, The heat dissipation device also includes a cooling chamber, the cooling fan is fixed in the cooling chamber, and the cooling chamber is provided with an evaporator, a condenser and a compressor connected in sequence. The top of the cooling chamber is provided with heat dissipation holes, the heat dissipation holes are corresponding to the evaporator, and the air inlet of the cooling fan faces the condenser.

4. The heat dissipation system as described in claim 1, characterized in that, The flipping device also includes a side conveyor, which is vertically fixed on the first frame and located on the side of the flipping plate opposite the vertical end. The conveying surface of the side conveyor toward the flipping plate is moved from the straight conveyor to the turning conveyor.

5. The heat dissipation system as described in claim 1, characterized in that, A guide plate is provided on the straight conveyor connected to the starting end of the turning conveyor. The guide plate is fixed on the first frame and is inclined relative to the side of the first frame. The distance between the guide plate and the first frame near the flip plate gradually narrows.

6. The heat dissipation system as described in claim 5, characterized in that, A connecting rod is provided on the side of the guide plate facing away from the flip plate. One end of the connecting rod is fixed to the first frame, and the other end of the connecting rod is pivotally connected to a connector. A C-shaped groove is provided on the back of the guide plate, and the connector is adapted to slide and then fixed in the groove.

7. The heat dissipation system as described in claim 5 or 6, characterized in that, The horizontal end of the flip plate is bent downward to form an insert portion, which is fitted onto the edge of the support plate, and the lower end of the insert portion extends below the surface of the conveyor belt on the running roller. The vertical end of the flip plate and the end of the guide plate are hinged together.

8. The heat dissipation system as described in claim 7, characterized in that, One end of the inner limiting rod is fixed to the end face of the vertical end of the flip plate, and the other end of the inner limiting rod is fixed to the support frame. The support frame is connected to the connecting plate fixed on the side of the first frame, and the support frame is restricted to moving linearly relative to the first frame on the connecting plate and then fixed.

9. The heat dissipation system as described in claim 1, characterized in that, The flipping device also includes a rotary motor, a central fixed mounting plate of the turning conveyor, the rotary motor being fixed to the mounting plate, and the output shaft of the rotary motor being connected to the flipping cam.

10. A method of operating the heat dissipation system as described in any one of claims 1 to 9, characterized in that, This working method includes the following steps: The heat dissipation devices configured on the two linear conveyors start working, causing the cooling fan to deliver cold air to each air inlet branch pipe, and then blow the cold air through each air diffuser pipe into each heat dissipation space of the linear conveyor, so that the temperature of the conveyor belt and the support plate forming the heat dissipation space drops to a low temperature state. One loaf of bread is placed on the linear conveyor connected to the starting end of the curved conveyor, so that one side of the bread is in contact with the support plate and the conveyor belt while being conveyed, allowing one side of the bread to dissipate heat through cooling. When the bread passes through the flipping device, the surface of the flipping plate is guided to flip 90° to the side, and then flips 90° again when it passes through the inner limit rod and the outer limit rod, so that the bread is flipped on the turning conveyor and the other side is facing down. When the bread is conveyed to another linear conveyor, the other side of the bread is conveyed while adhering to the linear conveyor and coming into contact with the support plate and the conveyor belt of the linear conveyor, so that the other side of the bread dissipates heat through cooling.

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