Deviation rectifying device of plate and strip instant freezer

Abstract

The utility model discloses a plate strip instant freezer deviation rectifying device which is characterized in that the device comprises a deviation rectifying air cylinder, a cylinder barrel part of the deviation rectifying air cylinder is fixedly connected to a machine frame of a plate strip instant freezer, a driving roller and a driven roller are rotationally supported on the machine frame, and a circulating plate strip is jointly supported between the driving roller and the driven roller. The driven roller is rotationally supported on the rack through a supporting shaft, one end of the supporting shaft is hinged to the rack, the other end of the supporting shaft is sleeved with a bearing seat, the working end of the deviation rectifying air cylinder is fixedly connected with the bearing seat, two symmetrically-distributed guide sleeves are arranged on the rack, guide rods are movably connected into the guide sleeves, and the deviation rectifying air cylinder is fixedly connected with the guide rods. The axial direction of the guide rod is perpendicular to the moving direction of the circulating plate strip, detection supports are arranged at the two ends of the guide rod respectively, idler wheels are arranged at the top ends of the detection supports, the height of the idler wheels is consistent with the height of the upper-layer circulating plate strip, and a detection rod is further arranged on the guide rod and perpendicular to the guide rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of refrigeration equipment, especially a plate strip quick freezer deviation rectifying device. BACKGROUND

[0002] At present, the plate strip quick freezer adopts stainless steel plate as product conveying belt, and it mainly works in the environment of -30 DEG C low temperature and 20 DEG C normal temperature alternately, and the steel plate (i.e. plate strip) for conveying frozen goods often appears deviation to one side due to temperature change, product adhesion, moisture icing and other factors, if the deviation of the plate strip is too large, the side will rub with the support frame, if it cannot be found and corrected in time, it can cause the deformation, wear and even tearing of the plate strip.

[0003] In order to avoid the above problems, the traditional plate strip quick freezer is provided with position adjusting lead screws on both sides of the driving wheel, the position of the center shaft of the plate strip roller can be adjusted through the adjusting lead screw, so that the plate strip rollers at the inlet and outlet of the quick freezer remain parallel, thereby ensuring the smooth running of the plate strip. However, for the quick freezer, the states of normal temperature operation and low temperature operation are different, the running states of having products and no products are also different, and even the running states of conveying different products are also different, which leads to the fact that the maintenance personnel need to frequently adjust and correct the center shaft of the plate strip, which is large in workload and seriously affects the production rhythm.

[0004] Therefore, a method or device capable of solving the above problems is needed. SUMMARY

[0005] The utility model discloses in order to solve the above insufficient of prior art, propose a simple structure, clever design, the layout is reasonable, can automatic detection plate strip running condition, and in the discovery plate strip deflection after self -control rectification device.

[0006] The technical solution of the utility model is: a plate strip quick freezer deviation rectifying device, characterized in that: the device includes deviation rectifying cylinder 1, the cylinder part of deviation rectifying cylinder 1 is fixedly connected on the frame of plate strip quick freezer, the frame is rotatably supported with driving roller 2 and passive roller 3, and the circulating plate strip 4 is commonly supported between driving roller 2 and passive roller 3, passive roller 3 is rotatably supported on the frame through support shaft 5, one end of support shaft 5 is hinged with the frame, and the other end is externally sleeved with bearing seat, the working end of deviation rectifying cylinder 1 is fixedly connected with bearing seat,

[0007] The rack is provided with two symmetrically distributed guide sleeves 6, a guide rod 7 is movably connected in the guide sleeve 6, the axial direction of the guide rod 7 is perpendicular to the movement direction of the circulating plate belt 4, detection supports 8 are arranged at the two ends of the guide rod 7 respectively, and rollers 9 are arranged at the top ends of the detection supports 8 and are kept in line with the height of the upper circulating plate belt 4, meanwhile, the rotation shafts of the rollers 9 are longitudinally distributed, detection rods 10 are further arranged on the guide rod 7, the detection rods 10 are perpendicular to the guide rod 7,

[0008] The rack is provided with a first sensor group and a second sensor group, the first sensor group is composed of two first sensors 11 which are symmetrically distributed with the detection rod 10 as the axis, the distance between the first sensor 11 and the detection rod 10 is H1, the second sensor group is composed of two second sensors 12 which are symmetrically distributed with the detection rod 10 as the axis, the distance between the second sensor 12 and the detection rod 10 is H2, and H1 < H2,

[0009] The deviation rectifying cylinder 1, the first sensor 11 and the second sensor 12 are all controlled by the control system.

[0010] Compared with the prior art, the plate belt quick freezer deviation rectifying device has the following advantages:

[0011] The plate belt quick freezer deviation rectifying device has the advantages of simple structure, ingenious design, reasonable layout, real-time monitoring of the plate belt deviation, real-time detection of the plate belt deviation through the mechanical structure and the two groups of sensors, corresponding actions of the deviation rectifying cylinder according to the detection result, correction of the plate belt through the rollers, reduction of the labor of the workers, effective protection of the plate belt, simple manufacturing process, low manufacturing cost, wide market prospect and the like. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a top view of the embodiment of the utility model.

[0013] Figure 2 is a front view of the embodiment of the utility model. DETAILED DESCRIPTION

[0014] The specific implementation of the utility model will be described below with reference to the drawings. As shown in the drawings, Figure 1 、 Figure 2The utility model discloses a plate strip quick freezer deviation rectifying device, it includes deviation rectifying cylinder 1, the cylinder barrel part of deviation rectifying cylinder 1 is fixedly connected on the frame of plate strip quick freezer, the frame is rotatably supported with driving roller 2 and passive roller 3, and the circulating plate strip 4 is supported between driving roller 2 and passive roller 3, passive roller 3 is rotatably supported on the frame through support shaft 5, one end of support shaft 5 is hinged with the frame, and the outside of the other end is then sleeved with bearing seat, the working end of deviation rectifying cylinder 1 is fixedly connected with bearing seat,

[0015] Two symmetrical distribution guide sleeves 6 are arranged on the frame, and guide rod 7 is movably connected in guide sleeve 6, the axial direction of guide rod 7 is perpendicular to the movement direction of circulating plate strip 4, detection support 8 is arranged at the both ends of guide rod 7 respectively, and roller 9 is arranged at the top end of detection support 8, the height of roller 9 is consistent with the upper circulating plate strip 4, and the rotation shaft of roller 9 is longitudinally distributed, detection rod 10 is further arranged on guide rod 7, and detection rod 10 is perpendicular to guide rod 7,

[0016] The frame is provided with a first sensor group and a second sensor group, the first sensor group is composed of two first sensors 11 which are symmetrically distributed with detection rod 10 as the shaft, the distance between first sensor 11 and detection rod 10 is H1, the second sensor group is composed of two second sensors 12 which are symmetrically distributed with detection rod 10 as the shaft, the distance between second sensor 12 and detection rod 10 is H2, and H1 < H2,

[0017] The deviation rectifying cylinder 1, the first sensor 11 and the second sensor 12 are all controlled by the control system.

[0018] The working process of the plate strip quick freezer deviation rectifying device is as follows: when the plate strip quick freezer works normally, the driving motor drives driving roller 2 to rotate, and the circulating plate strip 4 starts to move, conveying the goods from the inlet end to the outlet end, in the conveying process, the quick freezer blows low-temperature air to the goods, realizing the freezing operation of the conveyed goods.

[0019] Under normal working condition, driving roller 2 and passive roller 3 are in the state of mutual parallelism, the axial direction of circulating plate strip 4 is coaxial with the central axis of the length direction of the frame, and the two side edges of circulating plate strip 4 maintain a reasonable spacing with the frame,

[0020] When the circulating plate belt 4 is deformed due to temperature change, product adhesion on the circulating plate belt 4 causes deflection, ice on the circulating plate belt 4 causes deflection, etc., the circulating plate belt 4 is deflected, and the side edge of one side thereof moves outward. Taking the case that the circulating plate belt 4 moves to the left as an example, when the side edge of the circulating plate belt 4 contacts the left roller 9, the roller 9 is driven to move to the left, and in turn drives the guide rod 7 and the detection rod 10 thereon to move to the left relative to the rack. When the detection rod 10 moves to the left, it triggers the first sensor 11 on the left side. The first sensor 11 sends a signal to the control system, and the control system senses that the first sensor 11 on the left side is triggered, and then sends a signal to the correction air cylinder 1 to control the correction air cylinder 1 to extend (or be retracted). The action of the correction air cylinder 1 drives the support shaft 5 of the driven roller 3 to swing, and the driven roller 3 returns to the normal working state parallel to the driving roller 2 from the inclined state. After correction, the circulating plate belt 4 moves to the right and drives the roller 9 on the right to move to the right. When the circulating plate belt 4 returns to the normal working state, the correction device also returns to the initial state, waiting for the next detection and correction operation.

[0021] Since the device works in a low-temperature environment, its actuator is prone to failure. If the correction air cylinder 1 fails to work normally and drive the circulating plate belt 4 to return to the normal working state, the circulating plate belt 4 will continue to move in the deflected direction, i.e., the detection rod 10 will continue to move and trigger the second sensor 12 on the left side after triggering the first sensor 11 on the left side. When the second sensor 12 is triggered, it means that the edge of the circulating plate belt 4 is about to contact the rack. At this time, the control system controls the sound and light warning mechanism (such as a buzzer and a flashing light) connected thereto to work, reminding the worker to intervene in time and perform manual processing.

Claims

1. A belt conveyor quick-freezing machine correction device, characterized in that: The device includes a correction cylinder (1), the cylinder barrel of which is fixedly connected to the frame of the strip freezer. A drive roller (2) and a driven roller (3) are rotatably supported on the frame. A circulating strip (4) is supported between the drive roller (2) and the driven roller (3). The driven roller (3) is rotatably supported on the frame via a support shaft (5). One end of the support shaft (5) is hinged to the frame, and a bearing seat is fitted onto the outside of the other end. The working end of the correction cylinder (1) is fixedly connected to the bearing seat. The frame is provided with two symmetrically distributed guide sleeves (6), and a guide rod (7) is movably connected inside the guide sleeve (6). The axial direction of the guide rod (7) is perpendicular to the movement direction of the circulating belt (4). Detection brackets (8) are provided at both ends of the guide rod (7), and rollers (9) are provided at the top of the detection brackets (8). The rollers (9) are at the same height as the upper circulating belt (4), and the rotation axis of the rollers (9) is longitudinally distributed. A detection rod (10) is also provided on the guide rod (7), and the detection rod (10) is perpendicular to the guide rod (7). The frame is equipped with a first sensor group and a second sensor group. The first sensor group consists of two first sensors (11) symmetrically distributed about the detection rod (10) as an axis, and the distance between the first sensor (11) and the detection rod (10) is H1. The second sensor group consists of two second sensors (12) symmetrically distributed about the detection rod (10) as an axis, and the distance between the second sensor (12) and the detection rod (10) is H2, and H1 < H2. The correction cylinder (1), the first sensor (11), and the second sensor (12) are all controlled by the control system.

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