Signature Control Agency

Abstract

The present invention relates to a control mechanism for the lowering of skewers of a stringing machine, comprising a skewers wheel and a control wheel, wherein the skewers wheel and the control wheel are rotatably arranged below a hopper in a linkage manner, the control wheel is arranged on one side of the axial direction of the skewers wheel and is arranged close to a lower die; a plurality of material grooves are arranged at intervals on the wheel surface of the skewers wheel, and a loading position and a unloading position are arranged at the skewers wheel near the hopper and near the lower die respectively, at the loading position, the skewers in the hopper are inserted into the material groove of the skewers wheel, and at the unloading position, the skewers in the material groove of the skewers wheel will fall into the lower die; a plurality of tooth grooves are provided along the circumferential direction of the control wheel, and the material groove of the skewers wheel rotating to the unloading position and a tooth groove of the control wheel rotating to the unloading position are arranged along the same straight line. The present invention arranges a control wheel on one side of the skewers wheel to bend and straighten the bent skewers, so that the skewers fall accurately into the grooves of the lower die, thereby improving the loading accuracy of the skewers, and the skewers are bent in sequence by three control wheels with different tooth shapes, thereby improving the straightening accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of stringing machines, and in particular to a string-threading machine's lowering control mechanism. Background Art

[0002] The Chinese food market is booming, among which skewers are popular among customers because of their unique taste and self-service convenience. Ingredients are pierced with skewers to make skewers of food. There are automatic skewering machines on the market. For example, China invented a new skewering machine for tension spring-shaped ingredients (application number CN201910762027.7). The Chinese invention patent with application number 202010936344.9 discloses a skewer feeding device and an automatic skewering machine. The skewers are placed on the hopper and then conveyed to the limiting fixture (lower mold) through the skewering wheel. Because some skewers will be bent during the production and transportation process, the bent skewers cannot completely fall into the limiting groove on the limiting fixture when they fall from the skewering wheel into the limiting fixture. In the subsequent skewering process of the skewering machine, it is easy for the skewers to fail to penetrate the ingredients and be pushed out of the limiting fixture. Therefore, it is necessary to improve the skewering and lowering mechanisms of the skewers. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides a skewer lowering control mechanism for a skewer threading machine.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a skewer lowering control mechanism, which is arranged on the stringing machine, between the skewer hopper and the lower mold for loading the skewers to be stringed, and includes a skewer wheel and at least one control wheel, the skewer wheel and the control wheel are rotatably arranged below the hopper in a linkage manner, and the control wheel is arranged on one side of the axial direction of the skewer wheel and close to the lower mold; a plurality of axially extending material grooves are arranged at intervals on the wheel surface of the skewer wheel, and a loading position and a unloading position are respectively arranged at the hopper and the lower mold of the skewer wheel. At the loading position, the skewers in the hopper are stuck in the material groove of the skewer wheel, and at the unloading position, the skewers in the material groove of the skewer wheel will fall into the lower mold; a plurality of tooth grooves are opened on the control wheel in the circumferential direction, and the material groove of the skewer wheel rotated to the unloading position and a tooth groove when the control wheel rotates to the unloading position are arranged along the same straight line.

[0005] In the above technical solution, the maximum diameter of the control wheel is smaller than the maximum diameter of the lottery wheel.

[0006] In the above technical solution, the axial direction of the control wheel is parallel to the axial direction of the lottery wheel.

[0007] In the above technical solution, the rotation speeds of the control wheel and the lottery wheel are different, and the rotation directions of the control wheel and the lottery wheel are the same.

[0008] In the above technical solution, at least one group of control wheel groups is arranged on the outside of the lottery wheel, each group of control wheel groups has three control wheels, and the three control wheels are respectively a first control wheel, a second control wheel and a third control wheel. The first control wheel, the second control wheel and the third control wheel are coaxially arranged, the first control wheel is arranged close to the lottery wheel, the third control wheel is arranged far away from the lottery wheel, and the second control wheel is located between the first control wheel and the second control wheel.

[0009] In the above technical solution, the first control wheel, the second control wheel and the third control wheel are three gears with different tooth shapes, the first control wheel, the second control wheel and the third control wheel are arranged on the same rotating shaft, and fixing bolts are also arranged between the first control wheel, the second control wheel and the third control wheel, and the fixing bolts are parallel to the rotating shaft.

[0010] In the above technical solution, the first control wheel, the second control wheel and the third control wheel have the same number of teeth, and the base circle diameters of the first control wheel, the second control wheel and the third control wheel are the same.

[0011] In the above technical solution, the tooth top circle diameters of the first control wheel, the second control wheel and the third control wheel decrease successively, and the tooth thicknesses of the first control wheel, the second control wheel and the third control wheel decrease successively.

[0012] In the above technical solution, the tooth surface of the first control wheel in contact with the skewers is an arc surface, the tooth surface of the second control wheel in contact with the skewers is a partial arc surface, and the tooth surface of the third control wheel in contact with the skewers is an inclined plane.

[0013] In the above technical solution, supporting arms are provided on both sides of the axial direction of the selection wheel, the supporting arms are located between the control wheel and the lower mold, and the material unloading position is located at the end of the supporting arms.

[0014] The beneficial effects of the present invention are that the present invention has a reasonable structure, a novel design and strong practicality. By arranging a control wheel on one side of the skewer separating wheel, the bent skewers are bent and straightened, so that the skewers can be accurately dropped into the grooves of the lower mold, thereby improving the feeding accuracy of the skewers. The skewers are bent in turn by three control wheels with different tooth shapes, thereby improving the straightening accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view of the structure of the present invention (without the bearing plate and the bracket).

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the control wheel group.

[0018] Figure 4 It is a schematic diagram of the side structure of the control wheel group.

[0019] Figure 5 This is a schematic diagram comparing the structures of the three control wheels of the control wheel group (same scale).

[0020] Figure 6 This is a schematic diagram of the spatial structure between the stick and the control wheel before it is straightened.

[0021] In the figure: 1. sorting wheel; 11. material trough; 2. control wheel group; 21. first control wheel; 22. second control wheel; 23. third control wheel; 24. tooth groove; 25. tooth surface; 26. fixing hole; 27. bolt; 3. support arm; 4. lower die; 41. groove; 5. rotating shaft; 6. bearing plate; 61. bracket; 10. hopper; 101. loading position; 102. unloading position; 103. pick. DETAILED DESCRIPTION

[0022] Specific embodiments of the present invention will be described with reference to the accompanying drawings.

[0023] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed by the present invention, some changes such as design, manufacturing or production based on the technical contents disclosed by the present invention are only conventional technical means, and should not be understood as insufficient contents disclosed by the present invention.

[0024] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present invention may be combined with other embodiments without conflict.

[0025] Unless otherwise defined, the technical terms or scientific terms involved in the present invention shall be the common meanings understood by people with ordinary skills in the technical field to which the present invention belongs. The words "one", "an", "the" and the like involved in the present invention do not indicate a quantity limitation and may indicate the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in the present invention are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in the present invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in the present invention refers to greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" may indicate: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present invention are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0026] like Figure 1 As shown, the figure is a side view structure of the lottery control mechanism. It can be seen that the diameters of the lottery wheel 1 and the control wheel are quite different, and the end of the carriage is the unloading position 102.

[0027] like Figure 1-6 As shown, a control mechanism for lowering skewers is provided on the stringing machine, between a skewer hopper 10 for skewers 103 and a lower die 4 for loading the skewers 103 to be stringed, and includes a skewer wheel 1 and at least one control wheel, wherein the skewer wheel 1 and the control wheel are rotatably provided below the hopper 10, and the control wheel is provided on one side of the axial direction of the skewer wheel 1 and close to the lower die 4; a plurality of axially extending material grooves 11 are provided on the wheel surface of the skewer wheel 1 at intervals, and a loading position 101 and a unloading position 102 are provided on the skewer wheel 1 near the hopper 10 and near the lower die 4, respectively. At the loading position 101, the sticks 103 in the hopper 10 are inserted into the material groove 11 of the lottery wheel 1. At the unloading position 102, the sticks 103 in the material groove 11 of the lottery wheel 1 will fall into the lower mold 4. The unloading position 102 is a line position, not a point position, or the sticks 103 fall horizontally from the lottery wheel 1 to the lower mold 4. The control wheel is provided with a plurality of tooth grooves 24 along the circumference. The material groove 11 of the lottery wheel 1 rotated to the unloading position 102 and the tooth groove 24 of the control wheel rotated to the unloading position 102 are arranged along the same straight line. In terms of space, when the base circle of the lottery wheel 1 and the base circle of the control wheel are projected onto the same axial plane, the two are tangent at the unloading position 102.

[0028] like Figure 1 As shown, specifically, the maximum diameter of the control wheel is smaller than the maximum diameter of the lottery wheel 1. The axial direction of the control wheel is parallel to the axial direction of the lottery wheel 1. The rotation speed of the control wheel is different from that of the lottery wheel 1, and the control wheel and the lottery wheel 1 have the same rotation direction. When each material slot 11 on the lottery wheel 1 is rotated to the unloading position 102, the tooth groove 24 is in the same straight line with it, so as to ensure that the picks 103 running through the material slot 11 will not be missed for correction.

[0029] like Figure 2 As shown, two groups of control wheel groups 2 are arranged on the outer side of the lottery wheel 1, and the two groups of control wheel groups 2 are arranged on both sides of the axial direction of the lottery wheel 1. There are three control wheels in each group of control wheel groups 2, and the three control wheels are a first control wheel 21, a second control wheel 22 and a third control wheel 23. The first control wheel 21, the second control wheel 22 and the third control wheel 23 are coaxially arranged, the first control wheel 21 is arranged close to the lottery wheel 1, the third control wheel 23 is arranged far away from the lottery wheel 1, and the second control wheel 22 is located between the first control wheel 21 and the second control wheel 22.

[0030] In the present embodiment, the stringing machine adopts a picking wheel 1, and two control wheel groups 2 are arranged on both sides of the axial direction of the picking wheel 1. The material groove 11 of the picking wheel 1 is stuck in the middle of the pick 103, and the control wheel tooth groove 24 is stuck in the position of the pick 103 near the end; but a picking wheel 1 and a control wheel group 2 can also be used, the material groove 11 of the picking wheel 1 is stuck in the middle part of the pick 103, and the control wheel tooth groove 24 is stuck in the middle part of the pick 103. The end position.

[0031] Specifically, Figure 3-5 As shown, the first control wheel 21, the second control wheel 22 and the third control wheel 23 are three gears with different tooth shapes, and the first control wheel 21, the second control wheel 22 and the third control wheel 23 are arranged on the same rotating shaft 5, and a fixing bolt 27 is further arranged between the first control wheel 21, the second control wheel 22 and the third control wheel 23, and the fixing bolt 27 is parallel to the rotating shaft 5. The first control wheel 21, the second control wheel 22 and the third control wheel 23 are each provided with 8 fixing holes 26, and the 8 fixing holes 26 can pass through the fixing bolts 27. In practice, the first control wheel 21, the second control wheel 22 and the third control wheel 23 need at least 3 fixing bolts 27 to fix them.

[0032] In this embodiment, the rotating shaft 5 and the lottery wheel 1 are connected by the same transmission mechanism, and transmission wheels are respectively provided at the ends of the rotating shaft 5 and the ends of the shafts of the lottery wheel 1. A fixed transmission ratio is provided between the two transmission wheels, so that the lottery wheel 1 is linked with the control wheel, and the rotation speeds of the lottery wheel 1 and the control wheel are different. Among them, the transmission mechanism can be a gear transmission or a sprocket chain transmission. Of course, the control wheel and the lottery wheel 1 can be controlled separately by two different transmission mechanisms. By precise control, the rotation speeds of the two can be different, and it can be ensured that each material slot 11 of the lottery wheel 1 has a corresponding control wheel tooth groove 24 at the unloading position 102.

[0033] like Figure 6 As shown, the rotation speeds of the lottery wheel 1 and the control wheel are different. Specifically, the rotation speed of the control wheel is greater than that of the lottery wheel 1, and the control wheel rotates faster. During the rotation process from when the tooth surface 25 of the control wheel contacts the skewer 103 to when the skewer 103 falls at the unloading position 102, the speed difference between the control wheel and the lottery wheel 1 is utilized so that the control wheel has a torque to act on the skewer 103, thereby straightening the skewer 103.

[0034] The first control wheel 21, the second control wheel 22 and the third control wheel 23 have the same number of teeth, and the base circle diameters of the first control wheel 21, the second control wheel 22 and the third control wheel 23 are the same. It is ensured that the tooth grooves 24 of each control wheel and the material grooves 11 of the lottery wheel 1 are in the same straight line at the unloading position 102.

[0035] like Figure 4 It is shown that the tooth top circle diameter of the first control wheel 21, the tooth top circle diameter of the second control wheel 22 and the tooth top circle diameter of the third control wheel 23 decrease in sequence, and the tooth thickness of the first control wheel 21, the tooth thickness of the second control wheel 22 and the tooth thickness of the third control wheel 23 decrease in sequence. The full tooth height of the first control wheel 21 is greater than the full tooth height of the second control wheel 22, and the full tooth height of the second control wheel 22 is greater than the full tooth height of the third control wheel 23. The first control wheel 21 is relatively close to the picking wheel 1, and the first control wheel 21 with a relatively high and long tooth ratio can easily catch the bent pick 103, and then straighten the pick 103 a little, and the straightened pick 103 is then caught by the second control wheel 22 with the second highest teeth, and further straightened, and then caught and straightened by the third control wheel 23, and finally when approaching the unloading position 102, the pick 103 is forcibly straightened by the two groups of control wheels, and then can fall at the unloading position 102 and accurately fall into the groove 41 of the lower mold 4. Among them, in this embodiment, the straightening mentioned does not mean absolute straightening. The original intention is to bend the skewer 103 with excessive curvature to be relatively straight. The range of relative straightness is determined by the groove width of the lower mold 4. After straightening, the skewer 103 with reduced curvature can fall completely and accurately into the groove 41 of the lower mold 4.

[0036] like Figure 3As shown, the tooth surface 25 of the first control wheel 21 in contact with the skewer 103 is an arc surface, the tooth surface 25 of the second control wheel 22 in contact with the skewer 103 is a partial arc surface, and the tooth surface 25 of the third control wheel 23 in contact with the skewer 103 is an inclined plane. During the rotation process, the arc surface can better exert pressure on the skewer 103 to straighten it.

[0037] It should be noted that, in addition to the above, the three control wheels may also have the same tooth shape, size and dimension.

[0038] like Figure 2 As shown, the two sides of the skewer wheel 1 are provided with supporting arms 3, which are fixed on the machine platform of the stringing machine, and are located between the control wheel and the lower mold 4, and the unloading position 102 is located at the end of the supporting arms 3. The supporting arms 3 are used to guide the skewers 103 to the unloading position 102 to prevent the skewers 103 from falling in the middle, so that the skewers 103 cannot fall into the groove 41 of the lower mold 4 accurately.

[0039] Specifically, the control wheel group 2 is set on the same rotating shaft 5, and bearing plates 6 are set at both ends of the rotating shaft 5. The control wheel group 2 and the rotating shaft 5 can be rotatably set between the two bearing plates 6. In this embodiment, the bearing plate 6 is installed obliquely below the hopper 10 through a bracket 61.

[0040] During use, workers put many picks 103 into the hopper 10. Under the action of gravity, the picks 103 slide between the hopper 10 and the pick wheel 1. During the counterclockwise rotation of the pick wheel 1, the picks 103 slide into the trough 11 and get stuck. The pick wheel 1 drives the picks 103 to rotate to the support arm 3 and the control wheel. In this process, the support arm 3 supports the picks 103 at the bottom, and the pick wheel 1 presses the picks 103 at the top and gradually approaches the control wheel. First, the first control wheel 21 presses the picks 103 and bends the picks 103 toward the bottom of the tooth groove 24 under the action of the control wheel's own rotational torque, and then the second control wheel 22 and the third control wheel 23 bend the picks 103 into the tooth groove 24 in turn. If the skewers 103 are not bent, the skewers 103 are directly driven by the skewers wheel 1 to rotate from the loading position 101 to the unloading position 102 and fall into the groove of the lower mold 4. The tooth surface 25 of the control wheel will not contact and bend these straight skewers 103.

[0041] The present invention has a reasonable structure, novel design and strong practicality. By arranging a control wheel on one side of the scoring wheel 1, the bent skewers 103 are bent and straightened, so that the skewers 103 are accurately dropped into the grooves 41 of the lower mold 4, thereby improving the feeding accuracy of the skewers 103. The skewers 103 are bent in turn by three control wheels with different tooth shapes, thereby improving the straightening accuracy.

[0042] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A skewer lowering control mechanism, which is arranged on the skewer threading machine and is located between the skewer hopper and the lower die for loading the skewers to be threaded, and is characterized in that: The invention comprises a lottery wheel and at least one control wheel, wherein the lottery wheel and the control wheel are rotatably arranged below the hopper, and the control wheel is arranged on one side of the axial direction of the lottery wheel and close to the lower mold; a plurality of material grooves extending in the axial direction are arranged at intervals on the wheel surface of the lottery wheel, and a loading position and a unloading position are arranged at the lottery wheel near the hopper and near the lower mold respectively, at the loading position, the skewers in the hopper are inserted into the material groove of the lottery wheel, and at the unloading position, the skewers in the material groove of the lottery wheel will fall into the lower mold; a plurality of tooth grooves are opened on the control wheel in the circumferential direction, and the material groove of the lottery wheel rotating to the unloading position and a tooth groove of the control wheel rotating to the unloading position are arranged along the same straight line; the maximum diameter of the control wheel is smaller than the maximum diameter of the lottery wheel; the axial direction of the control wheel is parallel to the axial direction of the lottery wheel; the rotation speed of the control wheel is different from that of the lottery wheel, and the rotation direction of the control wheel is the same as that of the lottery wheel; supporting arms are arranged on both sides of the axial direction of the lottery wheel, and the supporting arms are located between the control wheel and the lower mold, and the unloading position is located at the end of the supporting arms.

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