Rolling cloth winding and unwinding mechanism and food rolling equipment

Abstract

The utility model belongs to the technical field of food processing machinery, and particularly relates to a rolling cloth winding and unwinding mechanism and food rolling equipment, and the rolling cloth winding and unwinding mechanism is used for enabling the rear end of rolling cloth to move forwards in the process that a rolling part of the food rolling mechanism moves forwards to roll food so as to prevent the situation that the rolling part is tightened due to the fact that the diameter of the rolled food is increased. The rolled cloth winding and unwinding mechanism comprises a first rod piece arranged on the rear side of the rolling part and an electric push-pull mechanism. The electric push-pull mechanism comprises an electric driver and two rotary-to-linear motion assemblies, the two rotary-to-linear motion assemblies are distributed left and right at intervals, the first rod piece is arranged on the two rotary-to-linear motion assemblies, and the electric driver is used for driving the two linear motion assemblies to drive the first rod piece to move front and back. According to the scheme, the rolling part pushing mechanism can be more accurately matched to act, it is guaranteed that stress is uniform and the shape is stable when food is rolled, the problems that rolling cloth slides or is unevenly tightened and the like are solved, and the rolling quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to food processing machinery technical field, concretely relates to a cloth winding and unwinding mechanism and food winding equipment thereof. BACKGROUND

[0002] Traditional fruit leather, bean roll and the like are wound by workers manually in the production process. Although this traditional method can retain the traditional flavor and taste of food, it has many disadvantages. On the one hand, manual winding is inefficient, requires a large amount of labor, and the winding speed of workers is limited, which is difficult to meet the demand of large-scale production. On the other hand, the labor cost is high, and with the continuous rise of labor cost, its economy gradually decreases.

[0003] To improve this situation, the applicant's prior patents / patent applications (such as application number: CN202422044148.7, CN202422044482.2, etc.) provide related food winding equipment, which improves the production efficiency and reduces the cost to a certain extent. However, there are still some improvements in actual use. For example, the cloth winding and unwinding mechanism is not accurate in controlling the winding and unwinding stroke, which affects the winding tightness of fruit leather and cannot fully meet the demand of high-quality production.

[0004] The methods described in this section can not have been previously conceived or made. Unless otherwise indicated, nothing in this section should be assumed to be prior art merely because of its inclusion in this section. Similarly, any problems mentioned in this section should not be assumed to have been recognized in any prior art unless otherwise indicated. SUMMARY

[0005] To overcome the problems in the related art, the utility model discloses a cloth winding and unwinding mechanism and food winding equipment. The traditional food winding equipment has the problems of inaccurate winding and unwinding control, poor cooperation with the winding part, affecting the winding precision and quality, inconvenient assembly and maintenance, and difficulty in adapting to various working conditions. The utility model aims to solve these problems, improve the winding effect and production efficiency, and meet the diversified production demand.

[0006] To achieve the above-mentioned purpose, one technical scheme of the utility model is as follows:

[0007] A cloth winding and unwinding mechanism is used to move the rear end of the cloth forward during the forward movement of the winding part of the food winding mechanism to prevent the wound food from being tightened by the winding part due to the increase in diameter. The cloth winding and unwinding mechanism comprises a first rod member arranged at the rear side of the winding part and an electric push-pull mechanism for driving the forward and backward displacement of the first rod member, and the rear end of the cloth is fixedly connected with the first rod member.

[0008] The electric push-pull mechanism includes an electric drive and a rotary-to-linear motion component. The rotary-to-linear motion component has two components and is spaced apart on the left and right. The first rod is arranged on the two rotary-to-linear motion components. The electric drive is used to drive the two rotary-to-linear motion components to drive the first rod to move forward and backward.

[0009] Furthermore, the rotary-to-linear motion assembly includes a threaded rod and a slide, the electric drive is used to drive the threaded rod to rotate, the threaded rod is rotatably connected to the frame and its length extends in the front-to-back direction, the first rod is connected to the slide, the slide is slidably connected to the frame and is threadedly connected to the threaded rod.

[0010] Furthermore, the rotation-to-linear motion assembly also includes a sliding rod and a first mounting seat, and the first mounting seats are provided with two, and the two first mounting seats are fixed to the frame at a front and rear interval, and the front and rear ends of the sliding rod are respectively fixed to the two first mounting seats, and the sliding rod is slidably connected to the sliding seat, and the threaded rod is rotatably connected to the two first mounting seats on both sides of the axis.

[0011] Furthermore, the sliding seat is fixed with a sliding cylinder whose axis extends in the front-to-back direction, and the sliding rod is slidably assembled in the sliding cylinder.

[0012] Furthermore, the slide seat is fixedly connected to a threaded barrel with an axis extending in the front-to-back direction, and the threaded rod is threadably assembled in the threaded barrel.

[0013] Furthermore, the electric drive includes a motor, a transmission shaft, a synchronous wheel, a synchronous belt and a rotary transmission assembly. The motor is arranged on the frame, the transmission shaft is rotatably connected to the frame and its length extends in the left and right directions, the middle part of the transmission shaft and the output end of the transmission shaft are provided with synchronous wheels, the synchronous belt is transmission-connected to the two synchronous wheels, the rotary transmission assembly has two groups, the two ends of the transmission shaft are respectively transmission-connected to the input ends of the two rotary transmission assemblies, and the output ends of the two rotary transmission assemblies are respectively transmission-connected to the two threaded rods.

[0014] Furthermore, the electric drive further comprises a second mounting seat, two second mounting seats are fixedly connected to the frame at intervals on the left and right sides, and the transmission shaft is axially connected to the two frames for rotation on both sides respectively.

[0015] Furthermore, the rotation transmission assembly includes a first helical gear and a second helical gear, the first helical gear is coaxially connected to the end of the transmission shaft, the second helical gear is coaxially rotatably connected to the end of the threaded rod, and the first helical gear is meshed with the second helical gear.

[0016] Furthermore, the slide seat is provided with an insertion hole for inserting the first rod, and the slide seat is threadedly connected with a fastening screw for fastening the first rod in the insertion hole.

[0017] A food rolling device comprises the cloth rolling and releasing mechanism described in any one of the above.

[0018] The solution provided by this application brings about significant beneficial effects in many aspects. A substantial improvement is achieved in rolling accuracy. By optimizing the cloth winding and releasing mechanism, it can more accurately cooperate with the rolling part's pushing mechanism to ensure that the food is evenly stressed and has a stable shape when rolled, avoiding problems such as cloth sliding or uneven tension, and improving the rolling quality. In terms of equipment operation stability, the precise transmission system and stable structural design reduce component shaking and offset, enhance the stability and consistency of cloth winding and releasing, reduce the probability of equipment failure, and extend the service life of the equipment. From the perspective of production efficiency, the adjustable parameter settings can better adapt to different food materials and processes. Combined with the optimized automatic control logic, a more efficient rolling process is achieved, which effectively shortens the production cycle and increases production capacity. It has significant advantages in large-scale food production and brings higher economic benefits to enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic cross-sectional view of an embodiment of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure at point A in the middle;

[0023] Figure 4 It is a structural diagram of an embodiment of the present invention.

[0024] The meanings of the reference numerals in the accompanying drawings are:

[0025] Frame 1, loading platform 2, groove 21, first bearing area 22, cloth rolling 3, second bearing area 31, rolling part 32, cloth rolling and retracting mechanism 4, first rod 41, electric drive 44, motor 441, transmission shaft 442, synchronous wheel 443, synchronous belt 444, first bevel gear 4451, second bevel gear 4452, second mounting seat 446, rotation-to-linear motion component 45, threaded rod 451, slide 452, slide cylinder 4521, threaded cylinder 4522, jack 4523, slide rod 453, first mounting seat 454, rolling part pushing mechanism 5, second rod 51, second driving mechanism 52, driving motor 525. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Reference Figures 1-4 As shown, the cloth winding and releasing mechanism 4 of this embodiment is used to move the rear end of the cloth winding 3 forward when the rolling portion 32 of the food rolling mechanism moves forward to roll the food, so as to prevent the rolled food from tightening the rolling portion 32 due to the increase in diameter.

[0028] In this embodiment, the cloth winding and retracting mechanism 4 includes a first rod 41 provided at the rear side of the winding portion 32 and an electric push-pull mechanism for driving the first rod 41 to move forward and backward. The rear end of the cloth winding 3 is fixedly connected to the first rod 41 .

[0029] In this embodiment, the electric push-pull mechanism includes an electric drive 44 and a rotary-to-linear motion component 45. The rotary-to-linear motion component 45 has two components and is spaced apart on the left and right. The first rod 41 is arranged on the two rotary-to-linear motion components 45. The electric drive 44 is used to drive the two rotary-to-linear motion components 45 to drive the first rod 41 to move forward and backward.

[0030] In addition to the implementation of this embodiment, other structural forms of the electric push-pull mechanism can be considered in other embodiments to drive the forward and backward displacement of the first rod 41. For example, a hydraulic drive system can be used, including a hydraulic pump, a hydraulic cylinder, and corresponding hydraulic pipelines and control valves. Alternatively, a pneumatic drive system can be used, consisting of an air compressor, an air cylinder, and a pneumatic control valve. Both of these methods are suitable for food rolling equipment that does not require particularly high rolling precision.

[0031] In this embodiment, the rotary-to-linear motion assembly 45 includes a threaded rod 451 and a slide 452. The electric driver 44 is used to rotate the threaded rod 451. The threaded rod 451 is rotatably connected to the frame 1 and extends longitudinally in the front-to-back direction. The first rod 41 is connected to the slide 452, which is slidably connected to the frame 1 and threadedly connected to the threaded rod 451.

[0032] Further, the rotating-to-linear motion assembly 45 further comprises a slide rod 453 and a first mounting base 454. The first mounting base 454 has two first mounting bases 454 which are spaced apart front-to-rear and fixed to the rack 1, and the slide rod 453 is fixed to the front and rear ends of the two first mounting bases 454, and the slide rod 453 is in sliding connection with the slide base 452, and the threaded rod 451 is in rotational connection with the two first mounting bases 454 on both sides in the axial direction. The slide base 452 is fixed with a slide cylinder 4521 extending in the front-to-rear direction, and the slide rod 453 is slidingly assembled in the slide cylinder 4521; the slide base 452 is further fixed with a threaded cylinder 4522 extending in the front-to-rear direction, and the threaded rod 451 is threadedly assembled in the threaded cylinder 4522.

[0033] The rotating-to-linear motion assembly 45 can also consider different structural designs to realize the function of converting rotary motion into linear motion and driving the first rod 41 in other embodiments.

[0034] For example, a gear and rack transmission mechanism can be used. The gear is connected with the output shaft of the electric drive 44, is mounted on the rack 1 and can rotate about its own axis, and the rack is fixedly connected with the first rod 41 and is in engagement with the gear. When the electric drive 44 drives the gear to rotate, the gear drives the rack to move linearly, thereby realizing the front-to-rear displacement of the first rod 41. These different structural forms can be used as alternative solutions for the rotating-to-linear motion assembly 45, and provide diversified choices for the food rolling equipment according to actual needs.

[0035] In this embodiment, the electric drive 44 comprises a motor 441, a transmission shaft 442, a synchronous wheel 443, a synchronous belt 444 and a rotary transmission assembly. The motor 441 is arranged on the rack 1, the transmission shaft 442 is in rotational connection with the rack 1 and extends in the left-to-right direction in the length direction, the transmission shaft 442 is provided with a synchronous wheel 443 at the middle portion and the output end of the transmission shaft 442, and the synchronous belt 444 is in transmission connection with the two synchronous wheels 443. The rotary transmission assembly has two groups, the transmission shaft 442 is in transmission connection with the input ends of the two rotary transmission assemblies at both ends, and the output ends of the two rotary transmission assemblies are in transmission connection with the two threaded rods 451. The electric drive 44 further comprises a second mounting base 446, the two second mounting bases 446 are spaced apart left-to-right and fixed to the rack 1, and the transmission shaft 442 is in rotational connection with the two racks 1 on both sides in the axial direction.

[0036] In addition to the embodiment of the electric drive 44, various different driving forms can be considered in other embodiments to meet the power requirements of the food rolling equipment for the cloth winding and unwinding mechanism.

[0037] Specifically, a chain drive combined with a reduction motor can be considered. The reduction motor serves as a power source, and a driving sprocket is installed on the output shaft of the reduction motor. The driving sprocket is connected to a driven sprocket installed at the end of the threaded rod 451 in the rotary-to-linear motion assembly 45 through a chain. The chain drive has the advantages of accurate transmission ratio, high transmission efficiency, large carrying capacity, and good working performance in harsh environments. The reduction motor can be selected according to actual needs to obtain appropriate torque and speed to drive the threaded rod 451 to rotate and achieve forward and backward displacement control of the first rod 41. This driving mode has certain application advantages in some food production workshops with complex industrial environments. These different electric drive 44 design schemes can be selected and optimized according to the specific application scenarios and performance requirements of the food rolling equipment.

[0038] In this embodiment, the rotary transmission assembly includes a first helical gear 4451 coaxially connected to the end of the transmission shaft 442 and a second helical gear 4452 coaxially connected to the end of the threaded rod 451. The first helical gear 4451 is engaged with the second helical gear 4452.

[0039] In addition to the embodiment of the rotary transmission assembly, various different structures can be considered in other embodiments to achieve power transmission from the transmission shaft 442 to the threaded rod 451 and conversion of rotary motion.

[0040] For example, a universal joint transmission assembly. The universal joint can achieve power transmission between two shafts that are not in the same straight line, and can maintain transmission efficiency and stability within a certain angle range. In this design, the transmission shaft 442 is connected to the intermediate transmission shaft through a universal joint, and the intermediate transmission shaft is connected to the shaft coaxially connected to the end of the threaded rod 451 through another universal joint. This transmission mode is suitable for cases where the relative position of the rotary-to-linear motion assembly 45 and the electric drive 44 in the food rolling equipment is flexible, and can effectively transmit power under different installation layouts to ensure the normal operation of the rolling and unrolling mechanism.

[0041] In addition, the sliding seat 452 is provided with a insertion hole 4523 for inserting the first rod 41, and the sliding seat 452 is threadedly connected with a fastening screw for fastening the first rod 41 in the insertion hole 4523. This design adopts a detachable connection method, which facilitates assembly and maintenance. During assembly, the operator can insert the first rod 41 into the insertion hole 4523 of the sliding seat 452, and then tighten the fastening screw to quickly connect the first rod 41 and the sliding seat 452. This connection method does not require complex installation tools and tedious operation steps, effectively improving the assembly efficiency. In addition, in other embodiments, other connection methods that can achieve detachable connection between the sliding seat 452 and the first rod 41 can also be considered.

[0042] When the cloth roll retracting and unwinding mechanism 4 is used in a food rolling machine for rolling operations, the structure of the food rolling machine can refer to the prior application. The food rolling machine provided in the prior application includes a food rolling mechanism and a control mechanism, wherein the food rolling mechanism includes a frame 1, a loading platform 2, a cloth roll 3, a rolling unit pushing mechanism 5, etc.

[0043] In the prior application, the frame 1 serves as the structural foundation, providing a stable support framework for the entire food rolling mechanism. It typically consists of a rectangular frame, side panels, and a platform. The rectangular frame is often welded from square steel, and adjustable height pads at the bottom ensure the frame is level when placed on the ground, providing a flat and stable foundation for the installation and operation of other components.

[0044] In the prior application, a loading platform 2, mounted on a frame 1, is used to carry food. It has a first loading area 22 and a groove 21 extending left and right behind it, with an arc-shaped longitudinal cross-section. The loading platform is used to hold food to be rolled, such as thin sheets of fruit leather, bean curd sheets, or egg rolls. The food is placed on the first loading area 22, while the groove 21 cooperates with the rolling cloth 3 to form a rolling portion 32, guiding the food's shape during the rolling process.

[0045] In the prior application, the roll cloth 3 is placed over the loading platform, with its front end fixed to the front side of the loading platform 2. The portion covering the first loading area 22 forms a second loading area 31 for loading food. The portion covering the groove 21 forms a rolling portion 32 of a matching shape. Under the action of the rolling portion pushing mechanism 5, the rolling portion 32 moves forward to roll up the food, completing the food rolling operation.

[0046] In the prior application, the rolling section pushing mechanism 5 is mounted on the frame 1 and comprises a pushing portion (second rod 51) and a second driving mechanism 52. The pushing portion is located behind the rolling section 32 and on the lower surface of the cloth roll 3. The second driving mechanism 52 drives the pushing portion forward and backward. During operation, the pushing portion moves forward, pushing the rolling section 32 forward, thereby rolling the food placed on the second supporting area 31 forward, gradually wrapping the food to conform to the shape of the rolling section 32, and completing the food rolling process.

[0047] In the prior application, the control mechanism is electrically connected to each drive mechanism and can control the operation of each drive mechanism. This control mechanism can achieve automated control of the entire food rolling process of the food rolling machine, including starting, stopping, and coordinating the operation of each mechanism, so that the equipment operates according to preset programs and parameters.

[0048] During the specific rolling operation, the food to be rolled (such as danpi, thousand sheets, egg rolls, and other thin sheet foods) is placed on the second bearing area 31 of the loading platform 2, and then the rolling operation is started. The control mechanism first controls the second rod 51 of the rolling section pushing mechanism 5 to push the rolling section 32 forward. When the rolling section 32 begins to move forward, the control mechanism controls the electric drive 44 of the cloth winding and unwinding mechanism 4 in a timely manner according to the preset program or the information fed back by the position sensor. The motor 441 is started, driving the transmission shaft 442 to rotate. Through the transmission of the synchronous wheel 443 and the synchronous belt 444, the rotary transmission components at both ends of the transmission shaft 442 (such as the meshing transmission of the first bevel gear 4451 and the second bevel gear 4452) transmit power to the threaded rod 451 in the two rotary-to-linear motion components 45, causing them to rotate. The slide 452, threadedly connected to the threaded rod 451 and slidably connected to the slide 453 (via the cooperation of the slide 4521 and the slide 453), drives the first rod 41 forward, thereby loosening the rear end of the cloth roll 3 forward, leaving room for the diameter of the rolling portion 32 to expand, ensuring that the food does not become tightened by the increased diameter of the rolling portion 32 during the rolling process. During the rolling process, the control mechanism continuously monitors the rolling progress and precisely adjusts the forward and backward displacement of the first rod 41 in the cloth roll retraction and unwinding mechanism 4 as needed to ensure that the retraction and unwinding of the cloth roll 3 is perfectly coordinated with the advancement of the rolling portion 32, thereby achieving the ideal rolling tightness. For example, when rolling a fruit leather, multiple tests determine that when the rolling portion 32 is rolled to a certain degree (e.g., a specific pulse signal from the drive motor 525 of the second drive mechanism 52) the first rod 41 is controlled to move forward an appropriate distance to prevent the fruit leather from being squeezed and to ensure the tightness of the roll.

[0049] As the rolling portion 32 continues to move forward, the food is gradually rolled up and wrapped together from back to front under the action of the rolling portion 32. The rolling portion 32 continuously transmits the rolling action forward until the food is completely wrapped.

[0050] When the food is completely rolled, the control mechanism controls the second drive mechanism 52 of the rolling unit's pushing mechanism 5 to drive the second rod 51 backward, returning it to its initial position. Simultaneously, the control mechanism controls the electric drive 44 of the cloth winding and retracting mechanism 4 to synchronously return the first rod 41 backward, pulling the rear end of the cloth winding 3 back to the appropriate position for the next roll.

[0051] In summary, the solution of the present application can achieve more precise position control. The electric driver 44 can precisely control the speed, direction, and angle of the rotational motion according to the control signal, and then accurately convert the rotational motion into linear motion through the rotation-to-linear motion component 45, driving the first rod 41 to move back and forth, making the retraction and release of the rear end of the cloth roll 3 more precise and coordinating with the rolling portion pushing mechanism 5 more coordinated, thereby improving the rolling accuracy. In this way, during the rolling process, the amount of relaxation of the rear end of the cloth roll 3 can be precisely controlled according to the progress of the food rolling and the change in diameter, avoiding problems such as loose rolling or food being squeezed due to the cloth roll 3 being too loose or too tight.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A cloth winding and releasing mechanism, configured to move the rear end of the cloth forward as the rolling portion of a food rolling mechanism moves forward to roll food, thereby preventing the rolled portion from being tightened due to an increase in the diameter of the rolled food, characterized in that: The cloth winding and retracting mechanism includes a first rod provided at the rear side of the winding portion and an electric push-pull mechanism for driving the first rod to move forward and backward, and the rear end of the cloth winding is fixedly connected to the first rod; The electric push-pull mechanism includes an electric drive and a rotary-to-linear motion component. The rotary-to-linear motion component has two components and is spaced apart on the left and right. The first rod is arranged on the two rotary-to-linear motion components. The electric drive is used to drive the two rotary-to-linear motion components to drive the first rod to move forward and backward.

2. The cloth winding and releasing mechanism according to claim 1, characterized in that: The rotary-to-linear motion assembly includes a threaded rod and a slide. The electric drive is used to drive the threaded rod to rotate. The threaded rod is rotatably connected to the frame and its length extends in the front-to-back direction. The first rod is connected to the slide. The slide is slidably connected to the frame and is threadedly connected to the threaded rod.

3. The cloth winding and releasing mechanism according to claim 2, characterized in that: The rotary-to-linear motion assembly also includes a sliding rod and a first mounting seat. The first mounting seats are provided with two, and the two first mounting seats are fixed to the frame at a front-to-back interval. The front and rear ends of the sliding rod are respectively fixed to the two first mounting seats. The sliding rod is slidably connected to the sliding seat, and the threaded rod is rotatably connected to the two first mounting seats on both axial sides.

4. The cloth winding and releasing mechanism according to claim 3, characterized in that: The sliding seat is fixed with a sliding cylinder whose axis extends in the front-back direction, and the sliding rod is slidably assembled in the sliding cylinder.

5. The cloth winding and releasing mechanism according to claim 3, characterized in that: The slide seat is fixedly connected with a threaded cylinder whose axis extends in the front-back direction, and the threaded rod is threadably assembled in the threaded cylinder.

6. The cloth winding and releasing mechanism according to claim 3, characterized in that: The electric drive includes a motor, a transmission shaft, a synchronous wheel, a synchronous belt and a rotary transmission assembly. The motor is arranged on the frame. The transmission shaft is rotatably connected to the frame and its length extends in the left and right directions. Synchronous wheels are provided in the middle of the transmission shaft and at the output end of the transmission shaft. The synchronous belt is transmission-connected to the two synchronous wheels. The rotary transmission assembly has two groups. The two ends of the transmission shaft are respectively transmission-connected to the input ends of the two rotary transmission assemblies, and the output ends of the two rotary transmission assemblies are respectively transmission-connected to the two threaded rods.

7. The cloth winding and releasing mechanism according to claim 6, characterized in that: The electric drive further includes a second mounting base, wherein two second mounting bases are fixed to the frame at intervals on the left and right sides, and the transmission shaft is axially connected to the two frames for rotation respectively.

8. The cloth winding and releasing mechanism according to claim 6, characterized in that: The rotary transmission assembly includes a first helical gear and a second helical gear, the first helical gear is coaxially connected to the end of the transmission shaft, the second helical gear is coaxially connected to the end of the threaded rod, and the first helical gear is meshed with the second helical gear.

9. The cloth winding and releasing mechanism according to claim 3, characterized in that: The sliding seat is provided with an insertion hole for inserting the first rod, and the sliding seat is threadedly connected with a fastening screw for fastening the first rod in the insertion hole.

10. A food rolling device, characterized in that: It comprises a cloth rolling and retracting mechanism as described in any one of claims 1 to 9.

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