Refrigeration control structure of low-temperature tunnel furnace

Abstract

The utility model provides a low-temperature tunnel furnace refrigeration control structure which comprises a refrigeration box, the refrigeration box is located on one side of a furnace body, the refrigeration box and the furnace body are both arranged on a conveying belt, the conveying belt is arranged on a supporting frame, and inlets and outlets are formed in the left side and the right side of the refrigeration box. A blocking assembly matched with the inlet and outlet is arranged at the top in the refrigerating box, a refrigerating machine and a draught fan are arranged at the top of the refrigerating box, and the two ends of the draught fan communicate with the refrigerating machine and the air conveying cover correspondingly. Compared with the prior art, the air volume adjusting mechanism has the following beneficial effects that through the design of the air volume adjusting mechanism, when the refrigeration box refrigerates a product, an electric push rod pushes a trapezoidal plate to linearly move, and the trapezoidal plate moves to push two movable plates to linearly move towards the two sides simultaneously by extruding inclined surface grooves in the two sides; the moving plate moves to push the side plate to rotate through the short extrusion plate and the long extrusion plate, the side plate drives the air duct baffle to rotate through the rotating shaft, and then the air outlet is opened.

Description

Technical Field

[0001] The utility model discloses a low-temperature tunnel furnace refrigeration control structure, belonging to the field of tunnel furnace refrigeration control equipment. Background Art

[0002] The tunnel oven is a tunnel-type mechanical equipment that bakes food through heat conduction, convection and radiation. There is a continuously operating conveying system in the tunnel. When the food is baked, the food moves relative to the electric heating element or direct-burning combustion rod through the conveyor chain plate, steel belt or mesh belt, thereby completing the work of uniform baking and conveying. This type of oven can produce continuously, has high production efficiency, saves manpower, and has stable baking quality.

[0003] Tunnel furnaces are characterized by large-scale continuous or intermittent baking, but existing processing tunnel furnaces lack cooling function. After the product is baked, it is inconvenient for workers to take the high-temperature products. In addition, the air volume of low-temperature cooling is fixed and cannot be adaptively adjusted. Therefore, it is impossible to adapt to different products and different quantities of products, which easily causes waste of resources and reduces the practicality of tunnel furnaces. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a low-temperature tunnel furnace refrigeration control structure.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A refrigeration control structure for a low-temperature tunnel furnace comprises a refrigeration box, wherein the refrigeration box is located on one side of a furnace body, the refrigeration box and the furnace body are both arranged on a conveyor belt, the conveyor belt is arranged on a support frame, inlets and outlets are provided on the left and right sides of the refrigeration box, a blocking assembly matched with the inlets and outlets is provided on the top of the refrigeration box, a refrigerator and a fan are provided on the top of the refrigeration box, two ends of the fan are respectively connected with the refrigerator and an air supply hood, two air supply ducts are connected to the air supply hood, air ducts are provided in the inner walls on both sides of the refrigeration box, the ends of the air supply ducts are connected with the air ducts from the outside of the refrigeration box, an air outlet connected with the inside of the refrigeration box is provided on the air duct, and an air volume regulating mechanism matched with a plurality of the air outlets is provided on the inner wall at the top of the refrigeration box.

[0007] Furthermore, the sealing assembly includes a shell fixed on the top of the refrigeration box and a sliding plate slidably connected to the inside of the inlet and outlet, a winding roller is rotatably connected to the inside of the shell, and a motor connected to the winding roller is provided on the inner wall of the refrigeration box. A shielding cloth is rolled up on the winding roller, and the bottom end of the shielding cloth passes through the top of the refrigeration box to the inside of the inlet and outlet and is connected and fixed to the top of the sliding plate.

[0008] Furthermore, the air volume adjustment mechanism includes a plurality of rotating shafts rotatably connected to the inside of the air outlet and a driving cavity opened in the inner wall of the top of the refrigeration box, the rotating shaft is provided with an air duct baffle, the air duct baffle blocks the air outlet, the top end of the rotating shaft passes through the inside of the driving cavity, the inner bottom of the driving cavity is provided with an active groove matching with the rotating shaft, the rotating shaft is fixed with a side plate at one end inside the active groove, and a torsion spring is provided between the side plate and the active groove.

[0009] Furthermore, the air volume adjustment mechanism also includes an electric push rod fixed in the middle of the driving cavity and two movable plates symmetrically arranged on both sides of the electric push rod. A fixed plate is provided on each side of the electric push rod, and the fixed plate is fixed inside the driving cavity. A reset spring is connected between the movable plate and the fixed plate.

[0010] Furthermore, the movable plate is horizontally slidably connected inside the driving cavity, and an inclined groove is opened on opposite sides of the two movable plates. The side output end of the electric push rod is connected to a trapezoidal plate, and the inclined end of the trapezoidal plate is squeezed together with the inclined groove. A plurality of extruded short plates and extruded long plates are fixed at equal intervals on the side of the movable plate away from the trapezoidal plate, and the extruded short plates and the extruded long plates are staggered.

[0011] Furthermore, an exhaust assembly is provided on the side of the furnace body, and the exhaust assembly includes an exhaust fan and a purification box located on the side of the furnace body, the input end of the exhaust fan is connected to the interior of the furnace body, and the output end of the exhaust fan is connected to the purification box through a conveying pipe.

[0012] Furthermore, four legs are provided at the bottom of the support frame, and anti-slip pads are provided at the bottom of the legs.

[0013] Furthermore, the outer layer of the furnace body is made of heat-insulating material.

[0014] Beneficial effects of the utility model:

[0015] Through the design of the blocking component, when the equipment is not in use, the blocking component will block the inlets and outlets on both sides, that is, the motor drives the winding roller to rotate, and the winding roller rotates to extend the shielding cloth. As the shielding cloth is extended, the shielding cloth will block the inlet and outlet under the action of the gravity of the sliding plate.

[0016] Through the design of the air volume adjustment mechanism, when the refrigeration box is cooling the product, the electric push rod pushes the trapezoidal plate to move in a straight line. The movement of the trapezoidal plate will push the two movable plates to move in a straight line to both sides at the same time by squeezing the inclined grooves on both sides. The movement of the movable plate will push the side plate to rotate by squeezing the short plate and the long plate. The side plate drives the air duct baffle to rotate through the rotating shaft, thereby opening the air outlet.

[0017] Through the design of squeezing the short plate and the long plate, when only the general air outlet needs to be opened, the electric push rod pushes the trapezoidal plate to move half the distance of the stroke, and the moving plate also only moves half the distance of the stroke, and the moving plate will drive several squeezing long plates to squeeze the side plates, and the side plates will drive the connected air duct baffles to rotate through the rotating shaft, so as to realize the opening action of half of the air duct baffles, and because the squeezing short plates have not yet contacted the side plates at the corresponding position, the other half of the air duct baffles are still in the state of blocking the air outlet. When all the air outlets need to be opened, the electric push rod pushes the trapezoidal plate to complete the entire stroke, and the moving plate completes the entire stroke, and the moving plate will drive several squeezing long plates and squeezing short plates to squeeze their corresponding side plates respectively, and the side plates will drive the connected air duct baffles to rotate through the rotating shaft, so as to realize the full opening action of the air duct baffles, thereby realizing the function of adjusting the air volume of the air outlet.

[0018] Through the design of the torsion spring, the torsion spring will be squeezed when the side panel is squeezed and rotated. In this way, when the short panel is squeezed and the long panel is squeezed without squeezing the side panel, the torsion spring will push the side panel to reset and rotate, and the side panel will drive the air duct baffle to reset and rotate through the rotating shaft to achieve blocking of the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of a low-temperature tunnel furnace refrigeration control structure of the utility model;

[0021] Figure 2 This is a schematic diagram of a refrigeration box structure of a low-temperature tunnel furnace refrigeration control structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of a refrigeration box of a low-temperature tunnel furnace refrigeration control structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the regulating mechanism of a low-temperature tunnel furnace refrigeration control structure in a closed state of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the regulating mechanism of a low-temperature tunnel furnace refrigeration control structure in the open state of the utility model;

[0025] Figure 6This is a schematic diagram of the partial structure of the air volume adjustment mechanism of a low-temperature tunnel furnace refrigeration control structure of the utility model Figure 1 ;

[0026] Figure 7 This is a schematic diagram of the partial structure of the air volume adjustment mechanism of a low-temperature tunnel furnace refrigeration control structure of the utility model Figure 2 .

[0027] In the figure, 1. support frame; 2. conveyor belt; 3. furnace body; 4. refrigeration box; 5. refrigerator; 6. fan; 7. air hood; 8. air duct; 9. inlet and outlet; 10. shell; 11. winding roller; 12. shielding cloth; 13. sliding plate; 14. electric push rod; 15. moving plate; 16. fixed plate; 17. return spring; 18. inclined groove; 19. trapezoidal plate; 20. extrusion short plate; 21. extrusion long plate; 22. rotating shaft; 23. air duct baffle; 24. movable groove; 25. side plate; 26. air duct. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 7 The utility model provides a technical solution for the refrigeration control structure of a low-temperature tunnel furnace, including a refrigeration box 4, the refrigeration box 4 is located on one side of a furnace body 3, the refrigeration box 4 and the furnace body 3 are both arranged on a conveyor belt 2, the conveyor belt 2 is arranged on a support frame 1, and an inlet and outlet 9 are opened on both sides of the refrigeration box 4, a blocking component matched with the inlet and outlet 9 is arranged on the top of the refrigeration box 4, a refrigerator 5 and a fan 6 are arranged on the top of the refrigeration box 4, and the two ends of the fan 6 are respectively connected to the refrigerator 5 and the air supply hood 7 Two air ducts 8 are connected to the air hood 7, and air ducts 26 are provided in the inner walls on both sides of the refrigeration box 4. The ends of the air ducts 8 are connected to the air ducts 26 from the outside of the refrigeration box 4. The air ducts 26 are provided with air outlets connected to the inside of the refrigeration box 4. The top inner wall of the refrigeration box 4 is provided with air volume adjustment mechanisms matched with the plurality of air outlets. Four legs are provided at the bottom of the support frame 1, and anti-slip pads are provided at the bottom of the legs. The outer layer of the furnace body 3 is made of heat-insulating material.

[0030] See also Figure 3The blocking component includes a shell 10 fixed on the top of the refrigeration box 4 and a sliding plate 13 slidably connected to the inside of the inlet and outlet 9, a winding roller 11 is rotatably connected inside the shell 10, and an inner wall of the refrigeration box 4 is provided with a motor connected to the winding roller 11, a shielding cloth 12 is rolled up on the winding roller 11, and the bottom end of the shielding cloth 12 passes through the top of the refrigeration box 4 to the inside of the inlet and outlet 9 and is connected and fixed to the top of the sliding plate 13; through the design of the blocking component, when the equipment is not in use, the blocking component will block the inlet and outlet 9 on both sides, that is, the motor drives the winding roller 11 to rotate, and the winding roller 11 rotates to extend the shielding cloth 12, and as the shielding cloth 12 is extended, under the action of gravity of the sliding plate 13, the shielding cloth 12 will block the inlet and outlet 9.

[0031] See also Figure 4-Figure 7 The air volume regulating mechanism includes a plurality of rotating shafts 22 rotatably connected to the inside of the air outlet and a driving chamber opened in the inner wall of the top of the refrigeration box 4, the rotating shaft 22 is provided with an air duct baffle 23, the air duct baffle 23 blocks the air outlet, the top of the rotating shaft 22 passes through the inside of the driving chamber, the inner bottom of the driving chamber is provided with an active groove 24 matched with the rotating shaft 22, the rotating shaft 22 is fixed with a side plate 25 at one end inside the active groove 24, a torsion spring is provided between the side plate 25 and the active groove 24, the air volume regulating mechanism also includes an electric push rod 14 fixed to the middle part of the driving chamber and two movable plates 15 symmetrically arranged on both sides of the electric push rod 14, a fixed plate 16 is respectively provided on both sides of the electric push rod 14, the fixed plate 16 is fixed inside the driving chamber, a return spring 17 is connected between the movable plate 15 and the fixed plate 16, The movable plate 15 is horizontally slidably connected inside the driving cavity, and an inclined groove 18 is provided on opposite sides of the two movable plates 15. A trapezoidal plate 19 is connected to the side output end of the electric push rod 14, and the inclined end of the trapezoidal plate 19 is squeezed together with the inclined groove 18. A plurality of extruded short plates 20 and extruded long plates 21 are fixed at equal intervals on the side of the movable plate 15 away from the trapezoidal plate 19, and the extruded short plates 20 and the extruded long plates 21 are staggered. Through the design of the air volume adjustment mechanism, when the refrigeration box 4 cools the product, the trapezoidal plate 19 is pushed to move linearly by the electric push rod 14. The movement of the trapezoidal plate 19 will push the two movable plates 15 to move linearly to both sides at the same time by squeezing the inclined grooves 18 on both sides. The movement of the movable plate 15 will push the side plate 25 to rotate by squeezing the short plate 20 and the long plate 21. The side plate 25 drives the air duct baffle 23 to rotate through the rotating shaft 22, thereby opening the air outlet.

[0032] An exhaust assembly (not shown in the figure) is provided on the side of the furnace body 3, and the exhaust assembly includes an exhaust fan (not shown in the figure) and a purification box (not shown in the figure) located on the side of the furnace body 3. The input end of the exhaust fan is connected to the interior of the furnace body 3, and the output end of the exhaust fan is connected to the purification box through a conveying pipe.

[0033] When in use, the product and the baking tray are placed on the conveyor belt 2, and the conveyor belt 2 transports the baking tray to the inside of the furnace body 3 for baking. The baked product enters the refrigeration box 4, and then the refrigerator 5 and the fan 6 transport cold air to the refrigeration box 4, thereby cooling the baked product to facilitate workers to take out the product.

[0034] When the refrigeration box 4 is cooling the product, the air duct baffles 23 in the plurality of air outlets can be adjusted to achieve the blocking adjustment of the air outlet, that is, the electric push rod 14 pushes the trapezoidal plate 19 to move linearly, and the movement of the trapezoidal plate 19 will push the two movable plates 15 to move linearly to both sides at the same time by squeezing the inclined grooves 18 on both sides, and the movement of the movable plate 15 will push the side plate 25 to rotate by squeezing the short plate 20 and the long plate 21, and the side plate 25 drives the air duct baffle 23 to rotate through the rotating shaft 22, thereby opening the air outlet, and the rotation of the side plate 25 will squeeze the torsion spring, so that when the short plate 20 and the long plate 21 do not squeeze the side plate 25, the torsion spring will push the side plate 25 to return to rotation, and the side plate 25 will drive the air duct baffle 23 to return to rotation through the rotating shaft 22 to achieve the blocking of the air outlet;

[0035] When only the general air outlet needs to be opened, the electric push rod 14 pushes the trapezoidal plate 19 to move half the distance of the stroke. At this time, the movable plate 15 also moves only half the distance of the stroke. The movable plate 15 drives a plurality of extrusion long plates 21 to squeeze the side plates 25. The side plates 25 drive the air duct baffles 23 connected thereto to rotate through the rotating shaft 22, thereby realizing the opening action of half of the air duct baffles 23. However, because the extrusion short plates 20 have not yet contacted the side plates 25 at the corresponding positions, the other half of the air duct baffles 23 are still in the state of blocking the air outlet.

[0036] When all the air outlets need to be opened, the electric push rod 14 pushes the trapezoidal plate 19 to complete the entire stroke. At this time, the movable plate 15 completes the entire stroke, and the movable plate 15 drives a plurality of extrusion long plates 21 and extrusion short plates 20 to respectively squeeze the corresponding side plates 25. The side plates 25 drive the air duct baffles 23 connected thereto to rotate through the rotating shaft 22, thereby realizing the full opening action of the air duct baffles 23, thereby achieving the function of adjusting the air volume of the air outlets.

[0037] When the equipment is not in use, the blocking assembly will block the inlet and outlet 9 on both sides, that is, the motor drives the winding roller 11 to rotate, and the winding roller 11 rotates to extend the shielding cloth 12. As the shielding cloth 12 is extended, the shielding cloth 12 will block the inlet and outlet 9 under the action of the gravity of the sliding plate 13.

[0038] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A low temperature tunnel furnace refrigeration control structure, characterized in that: The invention comprises a refrigeration box (4), wherein the refrigeration box (4) is located on one side of a furnace body (3), wherein the refrigeration box (4) and the furnace body (3) are both arranged on a conveyor belt (2), wherein the conveyor belt (2) is arranged on a support frame (1), wherein an inlet and an outlet (9) are provided on both sides of the refrigeration box (4), wherein a sealing component matching the inlet and the outlet (9) is provided on the top of the refrigeration box (4), wherein a refrigerator (5) and a fan (6) are provided on the top of the refrigeration box (4), wherein the two ends of the fan (6) are respectively connected to the inlet and the outlet. The refrigerator (5) is connected to an air supply hood (7), and two air supply ducts (8) are connected to the air supply hood (7). Air ducts (26) are provided in the inner walls on both sides of the refrigeration box (4), and the ends of the air supply ducts (8) are connected to the air ducts (26) from the outside of the refrigeration box (4). The air ducts (26) are provided with air outlets connected to the inside of the refrigeration box (4), and the top inner wall of the refrigeration box (4) is provided with air volume adjustment mechanisms that cooperate with the plurality of air outlets.

2. A low-temperature tunnel furnace refrigeration control structure according to claim 1, characterized in that: The blocking assembly comprises a shell (10) fixed at the top of the refrigeration box (4) and a sliding plate (13) slidably connected to the inside of the inlet and outlet (9); a winding roller (11) is rotatably connected to the inside of the shell (10); an inner wall of the refrigeration box (4) is provided with a motor connected to the winding roller (11); a shielding cloth (12) is wound on the winding roller (11); the bottom end of the shielding cloth (12) passes through the top of the refrigeration box (4) to the inside of the inlet and outlet (9) and is connected and fixed to the top of the sliding plate (13).

3. A low temperature tunnel furnace refrigeration control structure according to claim 2, characterized in that: The air volume regulating mechanism comprises a plurality of rotating shafts (22) rotatably connected to the inside of the air outlet and a driving chamber opened in the inner wall of the top of the refrigeration box (4); an air duct baffle (23) is provided on the rotating shaft (22), and the air duct baffle (23) blocks the air outlet; the top end of the rotating shaft (22) passes through the inside of the driving chamber; the inner bottom of the driving chamber is provided with a movable groove (24) matched with the rotating shaft (22); a side plate (25) is fixed at one end of the rotating shaft (22) inside the movable groove (24); a torsion spring is provided between the side plate (25) and the movable groove (24).

4. A low temperature tunnel furnace refrigeration control structure according to claim 3, characterized in that: The air volume adjustment mechanism also includes an electric push rod (14) fixed in the middle of the driving chamber and two movable plates (15) symmetrically arranged on both sides of the electric push rod (14), a fixed plate (16) is respectively provided on both sides of the electric push rod (14), and the fixed plate (16) is fixed inside the driving chamber, and a return spring (17) is connected between the movable plate (15) and the fixed plate (16).

5. A low temperature tunnel furnace refrigeration control structure according to claim 4, characterized in that: The movable plate (15) is horizontally slidably connected inside the driving cavity, and an inclined groove (18) is provided on opposite sides of the two movable plates (15). A trapezoidal plate (19) is connected to the side output end of the electric push rod (14), and the inclined end of the trapezoidal plate (19) is squeezed together with the inclined groove (18). A plurality of extruded short plates (20) and extruded long plates (21) are fixed at equal intervals on the side of the movable plate (15) away from the trapezoidal plate (19), and the extruded short plates (20) and the extruded long plates (21) are arranged in a staggered manner.

6. A low-temperature tunnel furnace refrigeration control structure according to claim 5, characterized in that: An exhaust assembly is provided on the side of the furnace body (3), and the exhaust assembly includes an exhaust fan and a purification box located on the side of the furnace body (3), the input end of the exhaust fan is connected to the inside of the furnace body (3), and the output end of the exhaust fan is connected to the purification box through a conveying pipe.

7. A low temperature tunnel furnace refrigeration control structure according to claim 6, characterized in that: Four supporting legs are provided at the bottom of the support frame (1), and anti-slip pads are provided at the bottom of the supporting legs.

8. A low temperature tunnel furnace refrigeration control structure according to claim 7, characterized in that: The outer layer of the furnace body (3) is made of heat-insulating material.

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