Energy-saving linear tunnel precision temperature control refreezing machine

Abstract

This utility model discloses an energy-saving linear tunnel precision temperature-controlled refreezing machine, belonging to the technical field of temperature-controlled refreezing equipment. It includes a refreezing machine housing, with a fixed frame at the bottom. A mesh conveyor belt is installed inside the housing, and a cleaning mechanism is located at the bottom of the housing. This cleaning mechanism is used to remove impurities and frost clogging the surface of the mesh conveyor belt. By incorporating the cleaning mechanism, this utility model can remove impurities and frost clogging the surface of the mesh conveyor belt, avoiding material conveying jams and uneven force distribution caused by mesh blockage. It also prevents impurities and frost from affecting the transmission stability of the conveyor belt. A rotating cam overlaps with the back of the mesh conveyor belt, generating moderate vibration through its rotation. This effectively removes impurities and frost without causing excessive wear on the conveyor belt, extending its service life and reducing equipment maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of temperature-controlled refreezing equipment technology, and in particular to an energy-saving linear tunnel precision temperature-controlled refreezing machine. Background Technology

[0002] In the production and processing of food, pharmaceutical and other industries, temperature-controlled refreezing equipment is a key piece of equipment to ensure the quality and safety of materials. Among them, the linear tunnel refreezing machine is widely used in the low-temperature processing of materials such as dumplings, seafood and biological agents due to its continuous operation and high refreezing efficiency.

[0003] However, in the long-term operation of existing linear tunnel precision temperature-controlled refreezing machines, the conveyor belts are mostly made of mesh. During the refreezing process, the debris and impurities generated by the material can easily clog the mesh of the conveyor belt. The clogging of the mesh not only causes material conveying to be stuck and unevenly stressed, affecting the continuity of the refreezing process, but also damages the stability of the conveyor belt transmission and increases the risk of equipment failure.

[0004] To address this, we designed an energy-saving, precision-temperature-controlled refreezing machine for straight tunnels, which features automatic cleaning of impurities and frost from the conveyor belt. Utility Model Content

[0005] This utility model discloses an energy-saving linear tunnel precision temperature-controlled refreezing machine, which aims to solve the technical problems of temperature-controlled refreezing equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An energy-saving linear tunnel precision temperature-controlled refreezing machine includes a refreezing machine housing, a fixed frame is fixedly installed at the bottom of the refreezing machine housing, a mesh conveyor belt is installed inside the refreezing machine housing, and a cleaning mechanism is installed at the bottom of the refreezing machine housing to clean impurities and frost clogging the surface of the mesh conveyor belt; The impurity removal mechanism includes two support frames fixedly connected to the surface of the fixed frame. A rotating shaft is rotatably connected between the two support frames. Several rotating cams are fixedly arranged on the surface of the rotating shaft. The rotating cams are evenly distributed on the surface of the rotating shaft. The position of the rotating cams corresponds to the mesh conveyor belt, and the rotating cams overlap with the back of the mesh conveyor belt.

[0007] In a preferred embodiment, two extension frames are symmetrically fixedly connected to the surface of the refrigeration unit housing, and a drive roller is rotatably connected between the two extension frames. The drive roller is located inside the mesh conveyor belt and is used to drive the mesh conveyor belt to move.

[0008] In a preferred embodiment, a drive motor is fixedly connected to the surface of the extension frame, the rotation shaft of the drive motor is fixedly connected to one end of the drive roller, and a drive synchronous pulley is fixedly connected to the end of the drive roller away from the drive motor.

[0009] In a preferred embodiment, a linkage shaft is rotatably connected to the surface of the support frame, and a driven synchronous pulley is fixedly connected to the surface of the linkage shaft. The position of the driven synchronous pulley corresponds to that of the driving synchronous pulley, and a transmission belt is installed between the driving synchronous pulley and the driven synchronous pulley.

[0010] In a preferred embodiment, a drive gear is fixedly connected to the surface of the linkage shaft, and a driven gear is fixedly connected to one end of the rotating shaft. The driven gear is positioned corresponding to the drive gear, and the drive gear and the driven gear are corresponding to each other.

[0011] In a preferred embodiment, the diameter of the driving synchronous wheel is larger than that of the driven synchronous wheel, the diameter of the driving gear is larger than that of the driven gear, and a collection box is provided below the refrigeration machine housing, the collection box being located directly below the impurity removal mechanism.

[0012] In a preferred embodiment, a strip-shaped air jet box is fixedly connected to the lower surface of the refrigeration unit housing. A plurality of air jet heads are fixedly embedded on the lower surface of the strip-shaped air jet box, and the positions of the air jet heads correspond to the mesh conveyor belt. An air pump is fixedly installed on the surface of the refrigeration unit housing, and the output end of the air pump is fixedly connected to the input end of the strip-shaped air jet box.

[0013] As can be seen from the above, the energy-saving linear tunnel precision temperature-controlled refreezing machine provided by this utility model has the following technical effects.

[0014] Firstly, by incorporating a debris removal mechanism, impurities and frost clogging the surface of the mesh conveyor belt can be cleaned, preventing material conveying blockages and uneven force distribution caused by mesh blockage. Simultaneously, it prevents impurities and frost from affecting the conveyor belt's transmission stability. The rotating cam overlaps with the back of the mesh conveyor belt, generating moderate vibration through its rotation. This effectively removes impurities and frost without causing excessive wear on the conveyor belt, extending its service life and reducing equipment maintenance costs.

[0015] Secondly, the design of a drive synchronous pulley with a larger diameter than the driven synchronous pulley and a drive gear with a larger diameter than the driven gear allows for optimized transmission ratios, enabling the rotating shaft to achieve a suitable rotational speed. This ensures that the cleaning force and frequency of the rotating cam on the conveyor belt are reasonable, guaranteeing both the cleaning effect and avoiding power waste caused by excessive speed, thereby further improving energy efficiency.

[0016] Thirdly, by setting up strip-shaped air jet boxes and several air jet heads, air can be sprayed onto the surface of the mesh conveyor belt under the action of an air pump, forming a dual cleaning mode of vibration + air jet. This can more thoroughly remove the fine impurities and frost remaining on the surface of the conveyor belt. The cleaned impurities and frost can fall directly into the collection box below for easy centralized collection and treatment, preventing impurities from scattering into the equipment or production environment and reducing the amount of cleaning work. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of an energy-saving linear tunnel precision temperature-controlled refreezing machine proposed in this utility model.

[0018] Figure 2 This is a rear view structural diagram of an energy-saving linear tunnel precision temperature-controlled refreezing machine proposed in this utility model.

[0019] Figure 3 This is a bottom view structural diagram of an energy-saving linear tunnel precision temperature-controlled refreezing machine proposed in this utility model.

[0020] Figure 4 for Figure 1 A magnified structural diagram of point A in the middle.

[0021] In the attached diagram: 1. Refreezing machine housing; 2. Fixing frame; 3. Mesh conveyor belt; 4. Impurity removal mechanism; 5. Collection box; 101. Extension frame; 102. Drive roller; 104. Drive motor; 105. Drive timing pulley; 401. Support frame; 402. Rotary shaft; 403. Rotary cam; 404. Linkage shaft; 405. Driven synchronous pulley; 406. Transmission belt; 407. Drive gear; 408. Driven gear; 409. Air pump; 410. Strip-shaped jet box; 411. Jet head. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 An energy-saving linear tunnel precision temperature-controlled refrigeration machine, with the refrigeration machine housing 1 as the main frame of the equipment, and a fixing frame 2 fixedly installed at the bottom of the refrigeration machine housing 1.

[0024] Inside the refrigeration unit housing 1, a horizontal mesh conveyor belt 3 is installed. The mesh conveyor belt 3 is made of stainless steel woven mesh, and its two ends are respectively fitted onto the drive rollers 102 of the extension frames 101 on both sides of the refrigeration unit housing 1. The extension frames 101 are symmetrically fixed to the outer walls of the feed end and discharge end of the refrigeration unit housing 1. The two extension frames 101 are rotatably connected to the drive rollers 102 through bearings. The outer circumferential surface of the drive rollers 102 is in close contact with the inner wall of the mesh conveyor belt 3, ensuring that the drive rollers 102 can drive the mesh conveyor belt 3 to move smoothly in a straight line when rotating, so as to realize continuous material conveying.

[0025] A drive motor 104 is bolted to the outer wall of the extension frame 101. The rotating shaft of the drive motor 104 is fixedly connected to one end of the drive roller 102. The other end of the drive roller 102, away from the drive motor 104, is fixedly connected to a drive synchronous pulley 105. The drive synchronous pulley 105 rotates coaxially with the drive roller 102. Meanwhile, two support frames 401 are welded to the surface of the fixed frame 2. The two support frames 401 are located on both sides below the mesh conveyor belt 3 and are in the same longitudinal plane as the extension frame 101.

[0026] The top of the support frame 401 is rotatably connected to the linkage shaft 404 via a bearing. The axis of the linkage shaft 404 is parallel to the axis of the drive roller 102. One end of the linkage shaft 404 is fixedly connected to the driven synchronous pulley 405. The driven synchronous pulley 405 and the drive synchronous pulley 105 are at the same height and in the same position. A transmission belt 406 is sleeved between the two to form a synchronous transmission relationship.

[0027] In addition, the drive gear 407 is fixedly connected to the side of the linkage shaft 404 near the driven synchronous pulley 405, and the two support frames 401 are also rotatably connected to the rotating shaft 402 through bearings. The rotating shaft 402 is located directly below the mesh conveyor belt 3, and its axis is parallel to the linkage shaft 404. One end of the rotating shaft 402 is fixedly connected to the driven gear 408. The driven gear 408 meshes with the drive gear 407, and the diameter of the drive gear 407 is larger than that of the driven gear 408. The diameter of the drive synchronous pulley 105 is larger than that of the driven synchronous pulley 405.

[0028] It is worth noting that the mesh conveyor belt 3 and the impurity removal mechanism 4 can be driven simultaneously by a single drive motor 104, without the need for an additional independent drive device, thus reducing the number of power sources. At the same time, the transmission ratio of the large-diameter synchronous wheel / gear driving the small-diameter synchronous wheel / gear is optimized, so that the rotating shaft 402 can obtain a higher speed than the drive roller 102, ensuring the vibration cleaning force of the rotating cam 403 on the mesh conveyor belt 3.

[0029] Several rotating cams 403 are uniformly welded to the outer circumference of the rotating shaft 402, and the top of the rotating cam 403 is tightly connected to the back of the mesh conveyor belt 3 to ensure that the rotating cam 403 can generate intermittent pushing vibration on the mesh conveyor belt 3 when it rotates.

[0030] A strip-shaped jet box 410 is also fixedly installed on the lower surface of the refrigeration unit housing 1 by bolts. The strip-shaped jet box 410 is located between the rotating shaft 402 and the mesh conveyor belt 3. Its length is consistent with the width of the mesh conveyor belt 3. Several jet heads 411 are evenly embedded on the lower surface of the strip-shaped jet box 410. The openings of the jet heads 411 face upward and correspond to the mesh positions of the mesh conveyor belt 3. An air pump 409 is fixedly installed on the outer wall of the refrigeration unit housing 1 by a bracket. The output end of the air pump 409 is sealed to the input end of the strip-shaped jet box 410 through an air pipe to form a high-pressure jet passage.

[0031] In addition, a collection box 5 is placed directly below the refrigeration unit 1. The opening size of the top of the collection box 5 is larger than the coverage area of ​​the impurity removal mechanism 4, and the collection box 5 can be pulled and moved along the bottom slide rail of the fixed frame 2.

[0032] Working principle: After the equipment is started, the drive motor 104 drives the drive roller 102 to rotate. The drive roller 102 uses friction to drive the mesh conveyor belt 3 to move linearly along the inside of the refrigeration machine box 1. The material to be refrigerated is placed on the mesh conveyor belt 3 from the feed end of the refrigeration machine box 1 and enters the box with the conveyor belt to complete the temperature-controlled refrigeration process.

[0033] Simultaneously, when the drive roller 102 rotates, it drives the drive synchronous wheel 105 to rotate. The drive synchronous wheel 105 drives the driven synchronous wheel 405 to rotate via the transmission belt 406. The driven synchronous wheel 405 drives the linkage shaft 404 to rotate synchronously. The drive gear 407 on the linkage shaft 404 drives the meshing driven gear 408 to rotate, which in turn drives the rotating shaft 402 to rotate. The rotating cam 403 on the rotating shaft 402 rotates with the shaft, intermittently pushing the back of the mesh conveyor belt 3, causing the conveyor belt to vibrate slightly and peel off the frost and impurities attached to the surface. At this time, the air pump 409 starts synchronously, delivering high-pressure gas to the strip-shaped air jet box 410, which sprays upward through the air jet head 411, blowing away the fine impurities remaining in the mesh of the mesh conveyor belt 3. The impurities after double cleaning fall into the collection box 5 below under the action of gravity.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An energy-saving linear tunnel precision temperature-controlled refreezing machine, comprising a refreezing machine housing (1), characterized in that, The bottom of the refrigeration machine housing (1) is fixedly provided with a fixing frame (2), the inside of the refrigeration machine housing (1) is provided with a mesh conveyor belt (3), and the bottom of the refrigeration machine housing (1) is provided with a cleaning mechanism (4). The cleaning mechanism (4) is used to clean the impurities and frost blocking the surface of the mesh conveyor belt (3). The impurity removal mechanism (4) includes two support frames (401) fixedly connected to the surface of the fixed frame (2). A rotating shaft (402) is rotatably connected between the two support frames (401). A plurality of rotating cams (403) are fixedly arranged on the surface of the rotating shaft (402). The plurality of rotating cams (403) are evenly distributed on the surface of the rotating shaft (402). The position of the rotating cams (403) corresponds to the mesh conveyor belt (3), and the rotating cams (403) overlap with the back of the mesh conveyor belt (3).

2. The energy-saving linear tunnel precision temperature-controlled refreezing machine according to claim 1, characterized in that, The surface of the refrigeration unit housing (1) is symmetrically fixedly connected to two extension frames (101), and a drive roller (102) is rotatably connected between the two extension frames (101). The drive roller (102) is located inside the mesh conveyor belt (3), and the drive roller (102) is used to drive the mesh conveyor belt (3) to move.

3. The energy-saving linear tunnel precision temperature-controlled refreezing machine according to claim 2, characterized in that, A drive motor (104) is fixedly connected to the surface of the extension frame (101). The rotation shaft of the drive motor (104) is fixedly connected to one end of the drive roller (102). A drive synchronous wheel (105) is fixedly connected to the end of the drive roller (102) away from the drive motor (104).

4. The energy-saving linear tunnel precision temperature-controlled refreezing machine according to claim 3, characterized in that, The surface of the support frame (401) is rotatably connected to a linkage shaft (404), and the surface of the linkage shaft (404) is fixedly connected to a driven synchronous pulley (405). The position of the driven synchronous pulley (405) corresponds to that of the driving synchronous pulley (105), and a transmission belt (406) is installed between the driving synchronous pulley (105) and the driven synchronous pulley (405).

5. The energy-saving linear tunnel precision temperature-controlled refreezing machine according to claim 4, characterized in that, A drive gear (407) is fixedly connected to the surface of the linkage shaft (404), and a driven gear (408) is fixedly connected to one end of the rotating shaft (402). The position of the driven gear (408) corresponds to that of the drive gear (407), and the drive gear (407) corresponds to the driven gear (408).

6. The energy-saving linear tunnel precision temperature-controlled refreezing machine according to claim 5, characterized in that, The diameter of the driving synchronous wheel (105) is larger than that of the driven synchronous wheel (405), the diameter of the driving gear (407) is larger than that of the driven gear (408), and a collection box (5) is provided below the refrigeration machine housing (1), the collection box (5) being located directly below the impurity removal mechanism (4).

7. The energy-saving linear tunnel precision temperature-controlled refreezing machine according to claim 6, characterized in that, A strip-shaped air jet box (410) is fixedly connected to the lower surface of the refrigeration machine housing (1). Several air jet heads (411) are fixedly embedded on the lower surface of the strip-shaped air jet box (410). The position of the air jet head (411) corresponds to the mesh conveyor belt (3). An air pump (409) is fixedly installed on the surface of the refrigeration machine housing (1). The output end of the air pump (409) is fixedly connected to the input end of the strip-shaped air jet box (410).

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