Instant freezer

Abstract

The utility model discloses an instant freezer. The instant freezer comprises an instant freezer, a feeding conveying mechanism and a discharging conveying mechanism. And when the platform modules operate to the feeding and discharging positions, the platform modules, the feeding conveying mechanism and the discharging conveying mechanism achieve synchronous linkage or release linkage to enter the next three-dimensional circulation operation. A whole conveying belt in a traditional instant freezer is changed into a plurality of platform modules, the platform modules move circularly, food on the platform modules is quick-frozen at the same time, and the occupied area of equipment can be reduced; when the platform module moves to the feeding and discharging position, the feeding and discharging conveying belts can be synchronously linked with the platform conveying belt, and simultaneous feeding and discharging of food are achieved. And then the platform module enters the next circulating motion, so that the continuous and automatic quick-freezing operation is realized. The limiting guide rails are arranged, so that the platform module can run stably, and materials are prevented from sliding out due to tilting.

Description

Technical Field

[0001] The utility model relates to the technical field of material quick-freezing, in particular to a quick-freezing machine for quickly freezing foods in the food processing industry. Background Art

[0002] Quick-freezing machines are generally used in the food processing industry to quickly freeze foods, so as to extend the storage period of foods and facilitate storage and transportation. Currently, the mainstream quick-freezing machines in the market are divided into tunnel quick-freezing machines and spiral quick-freezing machines.

[0003] The tunnel quick-freezing machine mainly consists of a refrigeration unit, a cooling fan, a transmission mesh belt, a transmission system, a storage body and a frame. Foods are sent into the main freezing area through a pre-cooling chamber and a feeding port after being pre-frozen. Under the combined action of the transmission mesh belt and the transmission system, it is ensured that the foods can move evenly inside the quick-freezing machine and achieve rapid cooling. Finally, the foods that have been quick-frozen are removed from the tunnel quick-freezing machine through an outlet. The tunnel quick-freezing machine is efficient and fast in quick-freezing, simple in structure and low in price. However, the tunnel quick-freezing machine is generally very long. For example, for a quick-freezing machine with a production capacity of 1000 kg / h, the length is generally about 20 m, and the width is about 6 m, occupying a large area.

[0004] The spiral quick-freezing machine mainly consists of a feeding port, a spiral conveying device, a cooling system, a control system and an outlet, etc. The spiral quick-freezing machine introduces foods into the quick-freezing machine through the feeding port. The spiral conveying device conveys the foods from the feeding port to the outlet. That is, when the foods enter the quick-freezing machine from the feeding port, the spiral conveying device conveys the foods forward along the spiral track and ensures that the items can pass through the quick-freezing machine evenly and continuously. The cooling system enables the foods to quickly cool down during the conveying process through the circulating flow of the refrigerant, realizing efficient freezing. The control system is responsible for the monitoring and adjustment of the entire quick-freezing process to ensure the consistency and safety of each device and the quick-freezing effect. The outlet outputs the frozen foods from the inside of the quick-freezing machine. The spiral quick-freezing machine is compact in structure, widely used, small in floor area, large in freezing capacity and energy-saving. However, there is space waste in the center of its rotating hub, and the conveyor belt is prone to turning over when surrounding the rotating hub, and the structure operation is not reliable.

[0005] Therefore, the problems that the existing quick-freezing machines occupy a large area and have an unreliable structure during operation are urgent problems to be solved in this field. Summary of the Utility Model

[0006] The utility model aims to solve the problems that the existing quick-freezing machine has a large floor area and an unreliable structure during operation, and provides a quick-freezing machine with a three-dimensional circular operation structure that is safe and reliable, can reduce the floor area of the equipment, has a high output per unit area, and can avoid the phenomenon of belt turnover during transmission. The quick-freezing machine replaces the existing conveyor belt for carrying food to be frozen with multiple platform modules that can perform three-dimensional circular operation, and can make the feeding conveyor belt, the discharging conveyor belt and the conveyor belt in the platform module be in the same plane and achieve synchronous linkage, that is, loading and unloading food at the same time, so as to realize continuous and automatic quick-freezing operation. In addition, through the limit guide rail, the stability of the platform module during three-dimensional circular operation can be ensured to prevent tipping and causing the food to slide out.

[0007] A quick-freezing machine provided by the utility model includes a quick-freezing cold storage, a feeding conveyor mechanism and a discharging conveyor mechanism, and is characterized in that it further includes multiple platform modules that can perform three-dimensional circular operation in the quick-freezing cold storage. When the platform module runs to the loading and unloading positions, it can be synchronously linked with the feeding conveyor mechanism and the discharging conveyor mechanism to realize synchronous loading and unloading or release the linkage and enter the next three-dimensional circular operation.

[0008] Preferably, a bracket is provided in the quick-freezing cold storage, a transmission mechanism for driving the platform module to perform three-dimensional circular operation is provided on the bracket, a driving mechanism of the transmission mechanism, and a detection and control device for controlling the platform module to be synchronously linked with the feeding conveyor mechanism and the discharging conveyor mechanism through a clutch device.

[0009] Preferably, the bracket is arranged on both sides, the feeding conveyor mechanism and the discharging conveyor mechanism are respectively arranged on both sides of the lower part of the bracket, the transmission mechanism drives the platform module to perform the three-dimensional circular operation between the two side brackets, and the synchronous linkage is realized when the platform module is between the feeding conveyor mechanism and the discharging conveyor mechanism.

[0010] Preferably, the transmission mechanism includes a pair of synchronously linked sprocket transmission devices oppositely arranged on the bracket, the driving mechanism is connected with one sprocket in the sprocket transmission device, and multiple platform modules are connected between the opposite sprocket transmission devices and perform the three-dimensional circular operation along with the chain transmission.

[0011] Preferably, the sprocket transmission device includes a pair of large pitch sprockets with the same size arranged vertically, and chain transmission is realized by connecting with a large pitch chain. Synchronous transmission is realized by connecting between the horizontally opposite large pitch sprockets through a sprocket transmission shaft.

[0012] Preferably, a plurality of platform support plates extending outward are arranged around the large pitch chain, and the platform modules are connected between the opposite platform support plates on both sides.

[0013] Preferably, the platform module comprises: a platform base, a platform conveyor belt arranged on the platform base, respectively connected to platform hangers at both ends of the platform base, a balancing shaft for keeping the platform module stable is arranged between the cross beams on the platform hangers at both ends, and both ends of the balancing shaft are respectively connected to the platform support plates on both sides through seat bearings; one end of the two conveyor belt shafts in the platform conveyor belt is provided with a first bevel gear.

[0014] Preferably, the driving mechanism comprises a circulating motor, which is connected to a large-pitch sprocket at the lower part of the sprocket transmission device through a variable speed transmission mechanism.

[0015] Preferably, the speed change transmission mechanism is a sprocket transmission mechanism, in which the driven sprocket and the large pitch sprocket are double sprockets to achieve connection transmission with the large pitch sprocket.

[0016] Preferably, the loading conveying mechanism includes a loading conveyor belt, a master and a slave conveying shaft, the master conveying shaft is connected to the conveyor belt motor, and a first bevel gear is provided at one end of the slave conveying shaft; it also includes a clutch device, so that the loading conveyor belt and the platform conveyor belt in the same plane are linked together; the unloading conveying mechanism includes a unloading conveyor belt, two conveying shafts, one end of one conveying shaft is provided with a first bevel gear, and also includes a clutch device, so that the platform conveyor belt and the unloading conveyor belt in the same plane are linked together; and the two sets of clutch devices act synchronously.

[0017] Preferably, the clutch device includes a cylinder, a transmission shaft rotatably mounted on the cylinder shaft, and two second bevel gears sequentially arranged on the transmission shaft; when the cylinder shaft is pushed out, one second bevel gear of the transmission shaft meshes with the first bevel gear of the conveyor shaft in the platform module, and the other second bevel gear meshes with the first bevel gear of the conveyor shaft, so that the loading conveyor belt, platform conveyor belt and unloading conveyor belt are synchronously linked.

[0018] Preferably, the detection control device includes a controller, a detection probe connected to the controller for detecting whether the platform module has moved to the loading and unloading position, a QR code label provided on the outer side of the platform support plate for detection by the detection probe, and an induction switch connected to the controller for detecting whether the engagement or disengagement of the bevel gear of the clutch device is completed.

[0019] Preferably, the bracket is symmetrically provided with limiting guide rails; four limiting columns are respectively provided at both ends of the platform module, two of which are respectively provided at both ends of the crossbeam of the platform hanger, and the other two are respectively provided at both ends of the platform base; with the transmission of the large-pitch chain, the limiting columns at both ends of the platform module will slide into or out of the limiting guide rails accordingly.

[0020] The quick-freezing machine provided by the utility model replaces the traditional conveyor belt with multiple platform modules, and drives the platform modules to perform a three-dimensional circular operation in the vertical direction. During the circular operation, the plane of the platform modules remains stable, and at the same time, the food loaded on the platform modules is quick-frozen. In this way, the quick-freezing method of circular motion upward into the air can greatly reduce the floor area of the equipment, while maintaining a high output of quick-frozen food per unit area. When it is necessary to increase the output of quick-frozen food, only the height of the equipment needs to be increased, which is convenient for production expansion and the floor area remains unchanged.

[0021] When the platform module runs between the loading conveyor mechanism and the unloading conveyor mechanism, the platform conveyor belt, the loading conveyor belt, and the unloading conveyor belt are in the same plane. That is, when the platform module moves to the loading and unloading position, through the operation of the clutch device, the loading conveyor belt, the unloading conveyor belt, and the conveyor belt in the platform module can be synchronously linked, that is, the same speed and the same direction of transmission of the three are realized, so as to realize the simultaneous loading and unloading of food. That is, the platform conveyor belt unloads the quick-frozen food on it through the unloading conveyor belt; at the same time, the loading conveyor belt spreads the food to be quick-frozen on the emptied platform conveyor belt. Then the platform module enters the next circular operation, thus realizing a continuous and automatic quick-freezing cycle.

[0022] The utility model also symmetrically arranges limiting guide rails on the brackets on both sides. With the transmission of the large pitch chain, the limiting columns respectively arranged at both ends of the platform module can correspondingly slide into or out of the limiting guide rails. The platform module is hung and connected to the platform support plates on both sides through the middle balance shaft. When the platform module runs upward, the limiting columns on the same side of the two end faces of the platform module slide into one side guide groove of the limiting guide rail; when the platform module turns and runs downward, the limiting columns are disengaged from the matching guide groove, and the limiting columns on the other side of the two end faces of the platform module slide into the other side guide groove of the limiting guide rail. In this way, during the up and down circular motion of the platform module, on the one hand, the platform module is hung and connected through the middle balance shaft, and on the other hand, the limiting columns on the same side of both ends of the platform module are also embedded in one side guide groove of the limiting guide rail. Through the support of these two aspects, the stability of the platform module during the circular operation can be ensured to prevent tipping and causing the food to slide out.

[0023] Compared with the existing quick-freezing machines, the utility model not only saves the floor area of the equipment and is convenient for expanding production, but also has a simple structure, stable operation, safe and reliable, effectively avoiding the problem of conveyor belt turnover. And its control is accurate, continuous and automatic, with high production efficiency. Description of the Drawings

[0024] Figure 1 It is a three-dimensional external view schematic diagram of an embodiment of the quick-freezing machine provided by the utility model;

[0025] Figure 2 For Figure 1Schematic three-dimensional view of the shown quick-freezing machine after removing the outer shell;

[0026] Figure 3 is Figure 2 Schematic three-dimensional view of the shown quick-freezing machine after removing the platform module;

[0027] Figure 4 is Figure 2 Left view of the shown quick-freezing machine;

[0028] Figure 5 is Figure 2 Enlarged view of part A in

[0029] Figure 6 is Figure 3 Enlarged view of the A100 drive mechanism in

[0030] Figure 7 Schematic diagram of the platform module structure in the quick-freezing machine of the present utility model;

[0031] Figure 8 Schematic diagram of the structure of the platform conveyor belt, the loading conveyor belt and the unloading conveyor belt in the quick-freezing machine of the present utility model during loading and unloading;

[0032] Figure 9 is Figure 8 Enlarged view of the C100 clutch device in

[0033] Figure 10 Flowchart of the control method for the operation of the quick-freezing machine of the present utility model.

[0034] In the figure: 001 - loading conveyor mechanism; 002 - unloading conveyor mechanism; 003 - quick-freezing cold storage; 004 - sprocket drive shaft; 005 - large pitch sprocket; 006 - large pitch chain; 007 - platform support plate; 008 - bracket; 009 - limit guide rail; 010 - QR code label; 011 - detection probe; 012 - first pedestal bearing; 013 - conveyor belt motor; 014 - coupling; 015 - conveyor rotating shaft; 016 - loading conveyor belt; 017 - unloading conveyor belt;

[0035] A100 - drive mechanism;

[0036] A101 - circulation motor; A102 - small sprocket; A103 - chain; A104 - large sprocket;

[0037] B100 - platform module;

[0038] B101 - platform base; B102 - cross beam; B103 - conveyor belt rotating shaft; B104 - conveyor belt gear;

[0039] B105 - Platform conveyor belt; B106 - Platform hanger; B107 - Balance shaft; B108 - Second bearing seat for belt;

[0040] B109 - Limit post;

[0041] C100 - Clutch device;

[0042] C101 - Cylinder; C102 - Transmission shaft; C103 - Second bevel gear; C104 - First bevel gear;

[0043] C105 - Inductive switch. Detailed implementation mode

[0044] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present utility model and do not constitute a limitation to the present utility model.

[0045] A quick-freezing machine provided by the present utility model includes a food transmission part and a refrigeration part for freezing food. The refrigeration part does not involve the improved and innovative part of the present utility model, so no special description will be made. The following mainly describes the structure and operation of the food transmission part.

[0046] Please refer to Figure 1 、 Figure 2 、 Figure 7 、 Figure 8As shown in the figure, the first embodiment of the quick-freezing machine provided by the present utility model includes a quick-freezing cold storage 003, a feeding conveyor mechanism 001, and a discharging conveyor mechanism 002. It also includes a plurality of platform modules B100 that can perform three-dimensional circular operation in the vertical direction within the quick-freezing cold storage, that is, the plane of the platform module is in a horizontal state and performs three-dimensional circular operation along the vertical circular path. When the quick-freezing machine is working, the food to be quick-frozen is transferred to the platform module through the feeding conveyor mechanism. The platform module undergoes three-dimensional circular operation inside the quick-freezing cold storage for a period of time for quick-freezing. When the platform module runs to the loading and unloading position, it realizes synchronous linkage with the feeding conveyor mechanism and the discharging conveyor mechanism. That is, the platform conveyor belt B105 of the platform module, the feeding conveyor belt 016, and the discharging conveyor belt 017 in the feeding and discharging conveyor mechanisms are driven at the same speed and in the same direction. In this way, the platform conveyor belt unloads the already quick-frozen food on it through the discharging conveyor belt to complete quick-freezing. At the same time, the feeding conveyor belt spreads the food to be quick-frozen over the already emptied platform conveyor belt. Then, the synchronous linkage between the platform module and the loading and unloading conveyor mechanism is released, and it enters the next three-dimensional circular operation, thus realizing continuous and automatic quick-freezing cycle. The quick-freezing machine provided by the present utility model replaces the traditional conveyor belt with a plurality of platform modules, and drives the platform modules to perform three-dimensional circular operation in the vertical direction. During the circular operation, the plane of the platform module remains stable, and at the same time, the food loaded on the platform module is quick-frozen. Such a quick-freezing method of upward circular movement can greatly reduce the floor area of the equipment while maintaining a high output of quick-frozen food per unit area. To increase the output of quick-frozen food, only the height of the equipment needs to be increased, which is convenient for production expansion and the floor area remains unchanged. In addition, when the platform module moves to the loading and unloading position, it is driven at the same speed and in the same direction as the feeding conveyor mechanism and the discharging conveyor mechanism to realize simultaneous discharging and feeding, thus realizing continuous and automatic quick-freezing cycle.

[0047] Please combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 、 Figure 9, the quick-freezing cold storage 003 includes a bracket 008, a transmission mechanism disposed on the bracket to drive the platform module B100 to perform a three-dimensional circular operation, and a driving mechanism for driving the transmission mechanism to transmit. A detection and control device that controls the synchronous linkage of the platform module B100 with the loading conveyor 001 and the unloading conveyor 002 through the clutch device C100. Further, the bracket 008 is divided into two lateral sides and disposed in the quick-freezing cold storage 003. The loading conveyor and the unloading conveyor are respectively disposed on both sides of the lower part of the bracket. For example, the loading conveyor 001 is disposed on the left side, and the unloading conveyor 002 is disposed on the right side. A space for the platform module B100 to stay for loading and unloading is left between the loading conveyor and the unloading conveyor. The transmission mechanism drives the platform module B100 to perform the above-mentioned three-dimensional circular operation between the two side brackets 008. When the platform module B100 is between the loading conveyor 001 and the unloading conveyor 002, the above-mentioned synchronous linkage can be achieved. The transmission mechanism and the driving mechanism disposed on the bracket are used to drive the platform module B100 to perform a three-dimensional circular operation, with a simple structure and accurate transmission. The loading conveyor and the unloading conveyor are respectively disposed on both sides of the lower part of the bracket, so that the platform module B100 can be located in the space between the loading conveyor and the unloading conveyor, and the clutch device can be used to conveniently control the platform module to be flush with the loading conveyor and the unloading conveyor, and food can be loaded and unloaded smoothly and conveniently.

[0048] As Figure 2 , Figure 3 shown, the transmission mechanism in this embodiment includes a pair of synchronously linked sprocket transmission devices oppositely disposed on the bracket, that is, a set of sprocket transmission devices is disposed on each side of the bracket 008, and the pair of oppositely disposed sprocket transmission devices are linked at the same speed and in the same direction. The driving mechanism is connected and transmitted to one sprocket in the sprocket transmission device. Multiple platform modules B100 are connected between the oppositely disposed sprocket transmission devices and perform the above-mentioned three-dimensional circular operation along with the chain transmission. Both the transmission mechanism and the driving mechanism adopt chain transmission mechanisms, with simple structures, convenient selection, flexible adjustment of the transmission ratio, and convenient installation and maintenance.

[0049] As Figure 3 shown, the sprocket transmission device in this embodiment includes a pair of large-pitch sprockets 005 of the same size disposed vertically, and chain transmission is achieved through the connection of a large-pitch chain 006. Synchronous transmission is achieved through the connection of a sprocket transmission shaft 004 between the two horizontally opposite large-pitch sprockets 005. That is, there are two upper and lower sprocket transmission shafts between the pair of oppositely disposed sprocket transmission devices, and both ends of the sprocket transmission shaft 004 are respectively installed on the bracket 008 through a first pedestal bearing 012 to ensure the flexible rotation of the sprocket transmission shaft 004. Further, please refer to Figure 2, around the large pitch chain 006, there are multiple platform support plates 007 extending outward. The platform module B100 is connected between the platform support plates opposite to the two side brackets 008. The transmission mechanism uses a pair of large pitch sprocket drive devices arranged horizontally opposite to each other with the same size, which has strong load-bearing capacity, stable and reliable transmission, and is convenient for synchronous operation. Due to the large chain pitch, it is convenient to install and connect the platform support plates extending outward. By adjusting the length of the platform support plates, the width of the platform module can be adjusted to control the loading capacity of the platform module. The connection between the two large pitch sprockets 005 arranged horizontally opposite to each other through a sprocket drive shaft 004 facilitates the quick realization of the synchronous transmission of a pair of sprocket drive devices.

[0050] As Figure 7 shown, the platform module B100 of this embodiment includes: a frame-type platform base B101, a platform conveyor belt B105 provided on the platform base, platform hangers B106 respectively connected to the two transverse ends of the platform base. A balance shaft B107 is sleeved between the cross beams B102 on the two platform hangers. The two ends of the balance shaft are respectively connected to the platform support plates 007 on both sides through a second pedestal bearing B108 (as Figure 2 , Figure 5 shown). In this embodiment, the base plane of the second pedestal bearing B108 is fixedly connected to the inner surface of the platform support plate and is perpendicular to the axis of the balance shaft. Moreover, the balance shaft B107 can rotate around its own axis relative to the cross beam B102 and the second pedestal bearing B108, that is, the entire platform module can swing around the axis of the balance shaft B107. Therefore, when installing the balance shaft B107, it is necessary to consider keeping the platform module B100 stable. Generally, the balance shaft passes through the middle of the cross beam. That is, try to make the plane of the platform conveyor belt B105 not rotate and tilt relative to the axis of the balance shaft B107 when the platform module is running in a three-dimensional cycle. The two ends of the main and driven conveyor belt rotating shafts B103 that drive the platform conveyor belt B105 are respectively provided on the platform base B101 through a first pedestal bearing 012, and a first bevel gear C104 for clutch is provided at one end of each of the main and driven conveyor belt rotating shafts B103. These two first bevel gears can be provided at the ends on the same side or on different sides (as Figure 8As shown in the figure. The platform conveyor belt is driven by a synchronous toothed belt, that is, the driving and driven conveyor belt rotating shafts drive the platform conveyor belt B105 through the conveyor belt gear B104. According to needs, ordinary belt drive can also be used as long as sufficient frictional force for transmission is ensured. The platform conveyor belt is arranged on the frame-type platform base, strengthening the stiffness of the platform module and improving the load-bearing capacity. The balance shaft can rotate around its own axis relative to the cross beam and the second belt seat bearing, that is, the entire platform module can swing around the axis of the balance shaft B107, facilitating automatic balance. When the two ends of the balance shaft are fixed to the platform support plates on both sides through bearings for three-dimensional circular operation, the plane of the platform conveyor belt B105 does not rotate and tilt relative to the axis of the balance shaft B107. In this way, the operation of the platform module can be ensured to be stable and not prone to tilting, which will not affect the quality of frozen food.

[0051] As Figure 3 、 Figure 6 As shown in the figure, the driving mechanism A100 includes a circulating motor A101, which is connected and driven to a large pitch sprocket 005 below the sprocket transmission device through a speed change transmission mechanism. Preferably, the speed change transmission mechanism is a sprocket transmission mechanism composed of a small sprocket A102, a chain A103, and a large sprocket A104, and the large sprocket A104 and the large pitch sprocket 005 are designed as a double sprocket. After the circulating motor A101 is started, it first drives the large pitch sprocket 005 of the double sprocket through the sprocket transmission mechanism. The large pitch sprocket 005 can make a pair of horizontally opposite sprocket transmission devices achieve synchronous linkage through the large pitch chain 006 and the upper and lower two sprocket transmission shafts 004, that is, achieve the same speed and the same direction of transmission. The circulating motor is connected to the transmission mechanism through a sprocket transmission structure, with a simple structure and convenient adjustment of the output speed. And directly manufacturing the driven sprocket of the sprocket transmission mechanism and a large pitch sprocket in the transmission mechanism into a double sprocket has a simple structure and accurate transmission.

[0052] As Figure 3 、 Figure 8 As shown in the figure, it is a schematic structural diagram when the feeding conveyor belt 016, the discharging conveyor belt 017, and the platform conveyor belt B105 in the quick-freezing machine provided by the present utility model are in the same plane. The feeding conveyor mechanism 001 includes a feeding conveyor belt 016 and two main and driven conveyor rotating shafts 015. The driving conveyor rotating shaft is connected to the conveyor belt motor 013 through a coupling 014, and a first bevel gear C104 for meshing is provided at one end of the driven conveyor rotating shaft. As Figure 9As shown in the figure, it further includes a clutch device C100, which enables the feeding conveyor belt 016 and the platform conveyor belt B105 on the same plane to be linked. The discharging conveying mechanism 002 includes a discharging conveyor belt 017 and two conveying rotating shafts. One end of a conveying rotating shaft is provided with a first bevel gear C104 for meshing. It also includes a clutch device C100, which enables the platform conveyor belt B105 and the discharging conveyor belt 017 on the same plane to be linked. Among them, the feeding and discharging conveying mechanisms adopt synchronous toothed belt transmission, and ordinary belt transmission can also be adopted according to needs. The structures of the above two sets of clutch devices C100 are the same, and the operations of connection and disconnection are carried out synchronously. The toothed belt transmission is quiet and has high transmission accuracy. It is convenient and fast to synchronously realize the linkage or disconnection between relevant rotating shafts through the clutch device.

[0053] As Figure 9 shown, the clutch device C100 provided near the feeding conveying mechanism 001 includes a cylinder C101 and a transmission shaft C102 sleeved on the cylinder shaft. Moreover, the transmission shaft can rotate around the cylinder shaft, and two second bevel gears C103 are sequentially arranged on the transmission shaft. When the cylinder shaft is pushed out, the second bevel gear C103 in front of the transmission shaft meshes with the first bevel gear C104 at the end of the conveyor belt rotating shaft B103 in the platform module B100, and the second bevel gear C103 behind the transmission shaft meshes with the first bevel gear C104 at the end of the driven conveying rotating shaft in the feeding conveying mechanism 001, so that the driven conveying rotating shaft of the feeding conveying mechanism is connected and driven with the driving conveyor belt rotating shaft of the platform module. At the same time, the clutch device C100 provided near the discharging conveying mechanism 002 also enables the driven conveyor belt rotating shaft of the platform module to be connected and driven with the driving conveying rotating shaft of the discharging conveying mechanism. When the conveyor belt motor 013 is started, through the operations of the above two sets of clutch devices, the feeding conveyor belt 016, the platform conveyor belt B105 and the discharging conveyor belt 017 are linked at the same speed and in the same direction.

[0054] As Figure 8 、 Figure 9As shown in the figure, the transmission path is as follows: the conveyor belt motor 013 starts to drive the feeding conveyor mechanism 001 to transmit. The driven conveyor rotating shaft 015 drives the transmission shaft C102 on the clutch device to rotate through a pair of bevel gears meshed at the ends. At the same time, a pair of meshed bevel gears at the front end of the transmission shaft drive the driving conveyor rotating shaft B103 of the platform module to rotate, thereby driving the platform conveyor belt B105 to transmit. Similarly, the clutch device provided near the discharging conveyor mechanism 002 connects the driven conveyor rotating shaft of the platform module with the driving conveyor rotating shaft of the discharging conveyor mechanism for transmission. It realizes that the feeding conveyor belt 016, the platform conveyor belt B105 and the discharging conveyor belt 017 rotate at the same speed and in the same direction, and all move to the right. Two sets of clutch devices are set to control the feeding conveyor belt 016, the platform conveyor belt B105 and the discharging conveyor belt 017 to rotate at the same speed and in the same direction simultaneously. The clutch device can conveniently and accurately make the relevant belt-driven rotating shafts linked or disengaged by controlling the engagement or disengagement of a corresponding pair of bevel gears.

[0055] As Figure 3 , Figure 4 shown, the detection and control device includes a controller (not shown in the figure), a detection probe 011 communicatively connected to the controller for detecting whether the platform module B100 has reached the loading and unloading position, and a two-dimensional code label 010 provided on the outer side of each platform support plate 007 for the detection probe to detect. When the detection probe 011 scans the two-dimensional code label, it indicates that the platform module B100 has reached the loading and unloading position, that is, the platform module B100 is located between the feeding conveyor mechanism 001 and the discharging conveyor mechanism 002. It also includes an induction switch C105 communicatively connected to the controller for detecting whether the operation connection or disengagement of the clutch device C100 is completed. That is, it detects whether the engagement or disengagement of the second bevel gear C103 and the first bevel gear C104 of the clutch device C100 is completed. Usually, the detection probe 011 is provided on the bracket 008 near the loading and unloading position. When the detection probe detects the two-dimensional code label 010, the controller turns off the circulating motor and operates the cylinder shaft of the clutch device to push out for connection. When it detects that the connection is completed, the conveyor belt motor is started, so that the feeding conveyor belt 016, the platform conveyor belt B105 and the discharging conveyor belt 017 are linked at the same speed and in the same direction to realize synchronous loading and unloading. When the loading and unloading are completed, the cylinder shaft of the clutch device is operated to retract and disconnect. When it detects that the disconnection is completed, the conveyor belt motor is turned off and the circulating motor is started, and the platform module B100 performs the next cycle operation. By setting the detection probe 011, the two-dimensional code label 010 and the induction switch C105 to be communicatively connected to the controller, the detected information can be accurately and quickly fed back to the controller for control operation, which is safe and reliable and convenient for realizing continuous automated quick-freezing production.

[0056] Please combine Figure 2 , Figure 3As shown, the second embodiment provided by the present utility model has the same main structure as the first embodiment, namely the support structure, the loading and unloading transmission mechanism, the platform module, the driving mechanism, the transmission mechanism, the clutch device, the detection and control device, etc. The difference is that a set of limiting guide rails 009 are symmetrically arranged on the bracket 008. In this embodiment, each set of limiting guide rails is arranged on both sides of the symmetrical sprocket transmission device, and both the upper and lower ends of the limiting guide rails are bifurcated structures, and the limiting guide rails are groove-type structures.

[0057] Four limit posts B109 are provided on each end face of the platform module B100, and the four limit posts are respectively arranged at the four corners of the end face. Among them, two limit posts are respectively arranged at both ends of the cross beam B102 of the platform hanger, and the other two limit posts are respectively arranged on both sides of the platform base B101. With the transmission of the large pitch chain 006 in the sprocket transmission device, the limit posts B109 at both ends of the platform module B100 will respectively slide into or out of the limiting guide rail 009. Please refer to Figure 2 As shown, when the platform module B100 is driven by the large pitch chain 006, that is, the platform module is lifted or lowered by the balance shaft B107. When the platform module is located on both sides of the large pitch sprocket 005, the limit posts B109 on the outer side of the platform module are just embedded in the limiting guide rail 009. Then, on the one hand, the platform module is lifted by the balance shaft B107, and on the other hand, it is supported by the limiting guide rail 009 on one side to run smoothly and is not prone to tilting, which affects the quality of the quick-freezing operation.

[0058] The quick-freezing machine of the present utility model can be operated according to the following control method. Please refer to Figures 1 - 10 :

[0059] Turn on the circulating motor A101, and first drive the large pitch sprocket 005 of the double sprocket through the sprocket transmission mechanism. The large pitch sprocket 005 can make a pair of horizontally opposite sprocket transmission devices achieve synchronous and co-directional linkage through the large pitch chain 006 and the upper and lower two sprocket drive shafts 004, so as to drive the platform module B100 to perform a three-dimensional circular operation around the large pitch sprocket 005. At the same time, the detection probe 011 scans and detects whether there is a two-dimensional code label 010 on the outer side of the platform support plate 007.

[0060] When the detection probe detects the two-dimensional code label, it indicates that a platform module is in the loading and unloading position between the loading transmission mechanism and the unloading transmission mechanism. The detection probe transmits the detected information to the controller, and the controller shuts down the circulating motor and stops the three-dimensional circulation operation of the platform module, and controls the cylinder shafts of the two clutch devices C100 to be synchronously pushed out, so that the corresponding first bevel gear C104 and the second bevel gear C103 enter the meshing state, that is, the rotating shafts of the corresponding belt transmissions in the loading and unloading conveyor mechanism and the platform module enter the connected linkage state. At the same time, the inductive switch C105 detects whether the rotating shaft of the corresponding belt transmission is connected.

[0061] If it is detected that the advancement and meshing of the clutch device are completed, it indicates that the rotating shaft of the corresponding belt transmission is connected and the clutch device is in the linkage state. Then the controller starts the conveyor belt motor 013, so that the loading conveyor belt 016, the platform conveyor belt B105 and the unloading conveyor belt 017 are synchronously linked to implement simultaneous food loading and unloading. That is, the platform conveyor belt unloads the already frozen food on it through the unloading conveyor belt from the right side; at the same time, the loading conveyor belt spreads the food to be frozen from the left side on the already emptied platform conveyor belt. At the same time, the detection probe starts timing.

[0062] When the detection probe 011 times out to reach the time T for loading and unloading, that is, at this time, the platform conveyor belt has completed the unloading of the already frozen food and synchronously completed the spreading of the food to be frozen. The conveyor belt motor is turned off, and the cylinder shafts in the two clutch devices contract synchronously, so that the meshing bevel gears are disengaged, that is, the rotating shafts of the corresponding belt transmissions are disconnected. At the same time, the inductive switch C105 detects whether the rotating shaft of the corresponding belt transmission is disconnected.

[0063] Among them, the time T for loading and unloading is the travel L of the platform conveyor belt divided by the speed V of the platform conveyor belt, that is, T = L / V. According to the requirements of frozen food, the speed V of the platform conveyor belt B105 is adjustable.

[0064] When all the platform modules B100 in the quick-freezer have experienced a three-dimensional circulation operation once, the cumulative time spent is T1 = T * the number of platform modules. Figure 2 As shown, there are ten platform modules in this embodiment. If the time T for loading and unloading is two minutes, then the cumulative time T1 is twenty minutes. This cumulative time T1 is the freezing time of the food. The number of platform modules can be selected according to needs.

[0065] When the inductive switch C105 detects that the corresponding rotating shaft is disconnected, the controller turns on the circulating motor A101 again, so that the platform module B100 performs the next three-dimensional circulation operation. The unit runs continuously in a cycle, thus completing the quick-freezing of food.

[0066] The utility model makes full use of the detection and control device to closely detect the operation state of the platform module, and controls the clutch device to work so that the feeding conveyor belt 016, the platform conveyor belt B105 and the discharging conveyor belt 017 are synchronously linked to implement the simultaneous loading and unloading of food. By recording the running time of the platform conveyor belt, the relevant conveyor belts are accurately controlled to be disengaged from the linkage, and the transmission device is started to enable the platform module B100 to enter the next three-dimensional cyclic operation. It realizes continuous automatic quick-freezing production accurately, quickly, safely and reliably.

[0067] In this specification, the techniques known to those of ordinary skill in the relevant art are not discussed in detail. However, where appropriate, the relevant prior art, methods and devices should be regarded as part of this specification. Any specific value in this specification should be construed as merely exemplary and not as a limitation of the utility model. The terms "first", "second", etc. used in the specification are only for differentiating similar components and do not have a sequential order, so they cannot be construed as limiting the protection scope of the utility model.

[0068] The above is only the specific implementation manner of the utility model. Any modification, equivalent replacement and change made within the spirit and framework of the conception of the utility model should be included in the protection scope of the utility model.

Claims

1. A quick freezing machine, comprising a quick freezing cold storage, a loading conveying mechanism and a unloading conveying mechanism, characterized in that: It also includes multiple platform modules for three-dimensional circulation operation in the quick-freezing cold storage. When the platform module runs to the loading and unloading position, it can be synchronized with the loading and unloading conveying mechanism and the unloading conveying mechanism to achieve synchronous loading and unloading or release the linkage to enter the next three-dimensional circulation operation.

2. The quick freezer according to claim 1, characterized in that: The quick freezing cold storage includes a bracket, a transmission mechanism arranged on the bracket to drive the platform module to perform the three-dimensional circulation operation, a driving mechanism of the transmission mechanism, and a detection control device that controls the platform module and the loading and unloading conveying mechanisms through a clutch device to realize the synchronous linkage.

3. The quick freezer according to claim 2, characterized in that: The bracket is arranged on both sides, and the loading conveying mechanism and the unloading conveying mechanism are respectively arranged on both sides of the lower part of the bracket. The transmission mechanism drives the platform module to perform the three-dimensional circulation operation between the brackets on both sides. When the platform module is between the loading conveying mechanism and the unloading conveying mechanism, the synchronous linkage is realized.

4. The quick freezer according to claim 3, characterized in that: The transmission mechanism includes a pair of synchronously linked sprocket transmission devices arranged relatively on the bracket, the driving mechanism is connected to a sprocket in the sprocket transmission device, and the multiple platform modules are connected between the relative sprocket transmission devices and operate in the three-dimensional cycle along with the chain transmission.

5. The quick freezer according to claim 4, characterized in that: The sprocket transmission device comprises a pair of vertically arranged large-pitch sprockets of the same size, which are connected by a large-pitch chain to realize chain transmission, and the large-pitch sprockets opposite to each other in the horizontal direction are connected by a sprocket transmission shaft to realize synchronous transmission.

6. The quick freezer according to claim 5, characterized in that: A plurality of platform support plates extending outward are arranged around the large pitch chain, and the platform modules are connected between the platform support plates opposite to each other on two sides.

7. The quick freezer according to claim 6, characterized in that: The platform module includes: a platform base, a platform conveyor belt arranged on the platform base, platform hangers respectively connected to the two ends of the platform base, a balancing shaft for keeping the platform module stable is inserted between the cross beams on the two platform hangers, and the two ends of the balancing shaft are respectively fixed to the surface of the platform support plates on both sides through a belt seat bearing; one end of the two conveyor belt rotating shafts in the platform conveyor belt is provided with a first bevel gear.

8. The quick freezer according to claim 5, characterized in that: The driving mechanism comprises a circulating motor, which is connected to a large-pitch sprocket at the lower part of the sprocket transmission device through a speed-changing transmission mechanism.

9. The quick freezer according to claim 8, characterized in that: The speed change transmission mechanism is a sprocket transmission mechanism, in which the driven sprocket and the large pitch sprocket are double sprockets to achieve connection transmission with the large pitch sprocket.

10. The quick freezer according to claim 7, characterized in that: The loading conveying mechanism includes a loading conveyor belt and two conveying rotating shafts, one conveying rotating shaft is connected to the conveyor belt motor, and one end of the other conveying rotating shaft is provided with a first bevel gear; it also includes a clutch device, so that the loading conveyor belt and the platform conveyor belt are linked or disengaged; the unloading conveying mechanism includes a unloading conveyor belt and two conveying rotating shafts, one end of which is provided with a first bevel gear; it also includes a clutch device, so that the platform conveyor belt and the unloading conveyor belt are linked or disengaged; and the two sets of clutch devices act synchronously.

11. The quick freezer according to claim 10, characterized in that: The clutch device includes a cylinder, a transmission shaft rotatably sleeved on the cylinder shaft, and two second bevel gears sequentially arranged on the transmission shaft; when the cylinder shaft is pushed out, one second bevel gear of the transmission shaft meshes with the first bevel gear of the conveyor shaft in the platform module, and the other second bevel gear meshes with the first bevel gear of the conveyor shaft, so that the loading conveyor belt, platform conveyor belt and unloading conveyor belt are synchronously linked.

12. The quick freezer according to claim 10, characterized in that: The detection control device includes a controller, a detection probe connected to the controller for detecting whether the platform module has run to the loading and unloading position, a QR code label provided on the outer side of the platform support plate for detection by the detection probe, and an induction switch connected to the controller for detecting whether the engagement or disengagement of the bevel gear of the clutch device is completed.

13. The quick freezer according to claim 7, characterized in that: The bracket is symmetrically provided with limiting guide rails; four limiting columns are respectively provided at both ends of the platform module, two of which are respectively provided at the two ends of the crossbeam of the platform hanger, and the other two limiting columns are respectively provided on both sides of the platform base; with the transmission of the large-pitch chain, the limiting columns at both ends of the platform module will slide into or out of the limiting guide rails accordingly.

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