A one-time forming device for bamboo chopsticks dedicated to sashimi

Abstract

The present invention discloses a one-time forming device for special bamboo chopsticks for sashimi. The forming mechanism includes a chopstick groove for positioning the blank; a punching rod moving linearly in a reciprocating manner pushes the blank to move along the chopstick groove; an upper and lower knife group and a left and right knife group distributed before and after along the chopstick groove are respectively composed of two forming knives arranged oppositely; during the process of the blank moving along the chopstick groove, four side surfaces of the blank are cut into a square cone shape by the forming knives; two intermittently moving conveyor belts are arranged at the end of the chopstick groove, the axis of the conveyor belt is perpendicular to the axis of the chopstick groove, teeth are evenly distributed on the outer periphery of the conveyor belt, and a pressing strip is arranged between the two conveyor belts; a processing mechanism for conical tips, slopes and chamfered parts is distributed along the conveyor belt: the punching rod pushes the blank to leave the chopstick groove and enter between the teeth and the pressing strip on the two conveyor belts, and a relay positioning component for the blank is arranged at the connection part between the chopstick groove and the conveyor belt. It can automatically form special bamboo chopsticks for sashimi in one time along the production line, effectively improving the production efficiency; moreover, the equipment runs stably and has high working reliability.

Description

Technical Field

[0001] The present invention relates to a bamboo chopstick forming device. Background Art

[0002] In the prior art, the Chinese utility model patent document with the authorization announcement number CN 2796982 Y discloses a "bamboo chopstick forming knife and a bamboo chopstick one-time forming machine", and the Chinese invention patent document with the application publication number CN 104308935 A discloses a "bamboo chopstick machine", which includes a frame, a motor, a power transmission mechanism and a forming mechanism. The motor is placed at the rear side of the lower end inside the frame, the power transmission mechanism is placed at the front side of the lower end inside the frame, the motor is linked with the power transmission mechanism, the forming mechanism is placed at the upper end of the frame, the power transmission mechanism drives the forming mechanism to operate, and the forming mechanism is used for chopstick forming. The forming mechanism includes a chopstick groove with forming cutters arranged correspondingly on the upper, lower, left and right sides. A punch rod pushes a blank to move along the chopstick groove, and during the movement, the blank on the four side surfaces is cut and formed by the forming cutters. It can make ordinary bamboo chopsticks be formed at one time.

[0003] The structure of the bamboo chopsticks for sashimi is different from that of ordinary bamboo chopsticks. For example, Figure 1 as shown, the middle part 104 is processed into a square cone; its bottom end needs to be processed into a slender and sharp conical tip 101, and the top end needs to be processed with a slope surface 102. A chamfered part 103 is arranged at the top of the slope surface 102. The conical tip 101 and the slope surface 102 can meet the functional requirements such as piercing sashimi and separating sashimi.

[0004] However, the existing equipment cannot achieve the one-time forming of the bamboo chopsticks for sashimi. Processing the blank into a square cone, processing the slender and sharp conical tip 101, processing the slope surface 102 and its chamfered part 103 need to be processed step by step in multiple processes, which seriously affects the production efficiency. Summary of the Invention

[0005] In order to solve the above drawbacks, the technical problem to be solved by the present invention is to provide a one-time forming device for bamboo chopsticks for sashimi, which effectively improves its production efficiency. To solve the above technical problem, the technical solution adopted by the present invention is a one-time forming device for bamboo chopsticks for sashimi, which includes a frame and a forming mechanism. The forming mechanism includes a chopstick groove for positioning a blank; a punch rod that moves linearly in a reciprocating manner pushes the blank to move along the chopstick groove. Its characteristics are that,

[0006] The upper and lower knife groups and the left and right knife groups are distributed before and after along the chopstick groove. The upper and lower knife groups and the left and right knife groups are respectively composed of two forming tools arranged oppositely. The four forming tools are respectively arranged corresponding to the four side surfaces of the blank. The forming tools reciprocate driven by the driving mechanism so that the cutting edges of the tools are far from or close to the chopstick groove to change the cutting depth of the blank. During the movement of the blank along the chopstick groove, the four side surfaces of the blank are cut into a square cone by the forming tools.

[0007] Two intermittently moving conveyor belts are arranged at the end of the chopstick groove. The axis of the conveyor belt is perpendicular to the axis of the chopstick groove. The outer periphery of the conveyor belt is evenly distributed with engaging teeth. A pressing strip is arranged between the two conveyor belts. Along the conveyor belt, a conical tip processing mechanism, a slope processing mechanism and a chamfer processing mechanism are distributed:

[0008] The punching rod pushes the blank out of the chopstick groove and into the space between the engaging teeth and the pressing strip on the two conveyor belts. A relay positioning component for the blank is arranged at the connecting part of the chopstick groove and the conveyor belt. The component includes a first rotating elastic pressing piece hinged to one end of the lever, and also includes a second rotating elastic pressing piece and a third rotating elastic pressing piece hinged to the other end of the lever. The first rotating elastic pressing piece acts in the chopstick groove at the rear end of the left and right knife groups, and the second and third rotating elastic pressing pieces act on the two ends of the blank on the conveyor belt respectively.

[0009] The beneficial effects of the present invention are that after the blank is fed into the device, it can automatically complete all the processing of the square cone, conical tip, slope and its chamfer along the production line, and the special bamboo chopsticks for sashimi are formed at one time, effectively improving the production efficiency; moreover, the equipment runs stably and has high working reliability.

[0010] Preferably, the conical tip processing mechanism includes a conical tip die that rotates electrically. The conical tip processing mechanism is installed on a moving rack and reciprocates towards the conveyor belt. When the conical tip processing mechanism approaches the conveyor belt, the conical tip die sleeves on the bottom end of the blank on the conveyor belt and grinds it into a conical tip.

[0011] Preferably, the slope processing mechanism includes a first electric grinding wheel that can be lifted and lowered. When the top end of the blank on the conveyor belt passes under the first electric grinding wheel, it is ground into a slope.

[0012] Preferably, the chamfer processing mechanism includes a second electric grinding wheel. When the slope top end of the blank on the conveyor belt passes by the side of the second electric grinding wheel, it is ground into a chamfer.

[0013] Preferably, the device further includes a feeding mechanism, including a positioning strip that can be lifted and lowered. The positioning strip is located above the feeding area of the chopstick groove. An feeding opening is arranged on the side of the feeding area of the chopstick groove. The end of the feeding conveyor belt of the blank is connected to the feeding opening. It avoids manual feeding and further improves the working efficiency.

[0014] Preferably, the relay positioning assembly includes an arc-shaped lever with a fulcrum hinged to the frame. One end of the arc-shaped lever is hinged to the roots of the second and third rotating elastic pressing pieces, and the free ends of the second and third rotating elastic pressing pieces respectively press on both ends of the blank on the conveyor belt. The other end of the arc-shaped lever is hinged to the root of the first rotating elastic pressing piece, and the free end of the first rotating elastic pressing piece presses on the blank in the chopstick groove at the rear end of the left and right knife groups. The middle parts of the first, second, and third rotating elastic pressing pieces are connected to the frame by springs, ensuring that the blank smoothly enters between the conveyor belt teeth and the pressing strip, and improving the reliability of the work.

[0015] Of course, it is not necessary for any product implementing the present invention to achieve all the above advantages simultaneously.

[0016] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. When an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural view of a special bamboo chopstick for sashimi;

[0018] Figure 2 It is a schematic overall structural view of the forming device (the relay positioning assembly is not shown);

[0019] Figure 3 It is a partially enlarged schematic structural view of the connection part between the chopstick groove and the conveyor belt (showing the first, second, and third rotating elastic pressing pieces);

[0020] Figure 4 It is a schematic overall structural principle view of the relay positioning assembly;

[0021] Figure 5 It is a schematic structural view of the punching rod and its driving mechanism;

[0022] Figure 6 It is a schematic structural view of the feeding conveyor belt and its driving mechanism;

[0023] Figure 7 It is a schematic structural diagram of a conical tip machining mechanism;

[0024] Figure 8 It is a schematic structural diagram of a slope machining mechanism;

[0025] Figure 9 It is a schematic structural diagram of a chamfer machining mechanism;

[0026] Figure 10 It is a schematic structural diagram of the working principle of the variable-diameter drive rod 404. Specific embodiments

[0027] See the appendix Figures 1-9 which reflects a specific structure of the present invention. The one-time forming device for the special bamboo chopsticks for sashimi includes a frame 1 and a forming mechanism. The forming mechanism includes a chopstick groove 3 for positioning a blank 2, and a punching rod 4 that moves linearly reciprocally pushes the blank 2 to move along the chopstick groove 3.

[0028] An upper and lower knife set 6 and a left and right knife set 5 are distributed before and after along the chopstick groove 3. The upper and lower knife set 6 and the left and right knife set 5 are respectively composed of two forming knives arranged oppositely: the forming knives arranged up and down in the upper and lower knife set 6 both include a knife B603, a knife handle B602, and a return spring B601; the knives arranged left and right in the left and right knife set 5 both include a knife A501, a knife handle A503, and a return spring A502; the four forming knives are respectively arranged corresponding to the four side surfaces of the blank 2. One end of the return spring acts on the frame 1, and the other end acts on the knife handle.

[0029] The forming knives reciprocate under the drive of a drive mechanism - the variable-diameter drive rod 404, so that the cutting edges of the knives move away from or close to the chopstick groove 3 to change the cutting depth of the blank 2; in the example, the outer circumference of a flywheel 401 driven by a motor 400 is connected to the middle of a rocker arm 403 through a connecting rod 402. The rocker arm 403 simultaneously drives the punching rod 4 and the variable-diameter drive rod 404 to perform linear reciprocating motion. The punching rod 4 pushes the blank 2 into the chopstick groove 3. The function of the variable-diameter drive rod 404 is as follows:

[0030] The left and right convex block parts 4041 of the variable-diameter drive rod 404 overcome the resistance of the return spring A502 and insert between the two knife handles A503. When passing through, the left and right convex block parts 4041 and the return spring A502 drive the two knives A501 to move left and right reciprocally through the knife handle A503, and the distance between the cutting edges of the two knives A501 first expands and then gradually shrinks;

[0031] Similarly, the upper and lower protrusions 4042 of the variable diameter driving rod 404 overcome the resistance of the return spring B601 and are inserted between the two knife handles B602. When passing through, the upper and lower protrusions 4042 and the return spring B601 drive the two knives B603 to reciprocate up and down through the knife handles B602, and the distance between the cutting edges of the two knives B603 first expands and then gradually shrinks.

[0032] The variable diameter driving rod 404 utilizes its radial thickness change to make the blade edge move away from or close to the chopstick groove 3 to change the cutting depth of the blank 2, so that when the blank 2 moves along the chopstick groove 3, the four sides of the blank 2 are cut by the forming tool into a square cone that gradually decreases from the top to the bottom. In the example, the tail end of the punch rod 4 is provided with a guide roller group 405 that clamps the tail of the rod body in four directions, up, down, left, and right, to ensure reliable operation.

[0033] Two intermittently moving conveyor belts 8 are provided at the end of the chopstick slot 3. The axis of the conveyor belt 8 is perpendicular to the axis of the chopstick slot 3. The outer periphery of the conveyor belt 8 is evenly distributed with latch teeth 801. A pressure strip 7 is provided between the two conveyor belts 8. Cone tip processing mechanisms, slope processing mechanisms and chamfer processing mechanisms are distributed along the conveyor belt 8:

[0034] The punch rod 4 pushes the blank 2 to leave the chopstick groove 3 and enter between the latch teeth 801 and the pressure strip 7 on the two conveyor belts 8. The connecting part of the chopstick groove 3 and the conveyor belt 8 is provided with a relay positioning component of the blank 2. In the example: the relay positioning component includes an arc lever 908 hinged on the frame 1 at a fulcrum 909, and one end of the arc lever 908 is hinged to the third root rotating shaft 902 of the third rotating elastic pressing piece 901 and the second root rotating shaft 904 of the second rotating elastic pressing piece 903 through a bearing. The free ends of the second and third rotating elastic pressing pieces are respectively pressed on the two ends of the blank 2 on the conveyor belt 8;

[0035] The other end of the arc lever 908 is hinged to the first root shaft 906 of the first rotating elastic pressing piece 905, and the free end of the first rotating elastic pressing piece 905 is pressed on the blank 2 in the chopstick groove 3 at the rear end of the left and right knife groups 5; the middle parts of the first, second and third rotating elastic pressing pieces are connected to the frame 1 through springs 907. It is ensured that the blank 2 smoothly transitions from the chopstick groove 3 to between the conveyor belt clamping teeth 801 and the pressure strip 7, and the three elastic pressing pieces are coordinated and linked through the arc lever 908 to improve the reliability and service life of the work.

[0036] In the example, the conical tip processing mechanism includes a conical tip mold 14 rotated by a third motor 15 through a pulley drive assembly 13. The third motor 15, the pulley drive assembly 13, and the conical tip mold 14 are all installed on a moving frame 16 and reciprocate in the direction towards the conveyor belt 8. When the conical tip processing mechanism approaches the conveyor belt 8, the conical tip mold 14 sleevs on the bottom end of the blank 2 on the conveyor belt 8 and grinds it into a conical tip. In the example, a lifting positioning rod 12 is also provided. When the conical tip mold 14 performs grinding operations, the lifting positioning rod 12 presses down to position the blank 2 to facilitate the grinding operation.

[0037] In the example, the slope processing mechanism includes a lifting first electric grinding wheel 10. When the top end of the blank 2 on the conveyor belt 8 passes under the first electric grinding wheel 10, the first electric grinding wheel 10 descends to grind the top end of the blank 2 into a slope.

[0038] In the example, the chamfer processing mechanism includes a second electric grinding wheel 11. When the slope top end of the blank 2 on the conveyor belt 8 passes by the side of the second electric grinding wheel 11, it is ground into a chamfer.

[0039] In the example, the device further includes a feeding mechanism, including a lifting positioning bar 202. The positioning bar 202 is located above the feeding area of the chopstick groove 3. A feeding opening is provided on the side of the feeding area of the chopstick groove 3. The end of the feeding conveyor belt 201 of the blank 2 is connected to the feeding opening. During feeding, the positioning bar 202 rises. The feeding conveyor belt 201 sends the first blank 2 into the chopstick groove 3 through the feeding opening. Then the positioning bar 202 descends to abut against the top of the blank 2 in the chopstick groove 3 for positioning. Then the punching rod 4 acts to push it towards the upper and lower knife sets 6 and the left and right knife sets 5. After the punching rod 4 reversely resets, the positioning bar 202 rises again. After the second blank 2 is fed, the positioning bar 202 descends. The punching rod 4 pushes the second blank 2 to move forward along the chopstick groove 3. The second blank 2 pushes the first blank 2, and so on in a cyclic operation, continuously supplying the blank 2. Avoiding manual feeding further improves the work efficiency.

[0040] As can be seen from the above, after the blank 2 is fed into the device, it can automatically complete all the processing of the square cone, conical tip, slope, and its chamfer along the production line, forming the special bamboo chopsticks for sashimi in one go, effectively improving the production efficiency; moreover, the equipment runs stably and has high working reliability.

[0041] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and combines the accompanying drawings to specifically describe these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is only limited by the claims and their full scope and equivalents, and is not limited by the specific embodiments disclosed.

Claims

1. A one-time forming device for bamboo chopsticks dedicated to sashimi, comprising a frame and a forming mechanism. The forming mechanism includes a chopstick groove for positioning the blank; a punch rod that moves linearly back and forth pushes the blank to move along the chopstick groove. It is characterized in that an upper and lower knife group and a left and right knife group are distributed before and after along the chopstick groove. The upper and lower knife group and the left and right knife group are respectively composed of two forming knives arranged oppositely. The four forming knives are respectively arranged corresponding to the four sides of the blank; the variable-diameter driving rod makes the cutting edge of the knife move away from or close to the chopstick groove by using the change of its radial thickness to change the cutting depth of the blank; during the process of the blank moving along the chopstick groove, the four sides of the blank are cut into a square cone shape by the forming knives. Two intermittently moving conveyor belts are arranged at the end of the chopstick groove. The axis of the conveyor belt is perpendicular to the axis of the chopstick groove. Teeth are evenly distributed on the outer periphery of the conveyor belt. A pressing strip is arranged between the two conveyor belts. A conical tip processing mechanism, a slope processing mechanism and a chamfer processing mechanism are arranged along the conveyor belt The punch rod pushes the blank out of the chopstick groove and into the space between the teeth and the pressing strip on the two conveyor belts. A relay positioning component for the blank is arranged at the connection part between the chopstick groove and the conveyor belt. This component includes a first rotating elastic pressing piece hinged at one end of a lever, and also includes a second rotating elastic pressing piece and a third rotating elastic pressing piece hinged at the other end of the lever; the first rotating elastic pressing piece acts in the chopstick groove at the rear end of the left and right knife groups, and the second and third rotating elastic pressing pieces act on the two ends of the blank on the conveyor belt respectively.

2. The one-time forming device for special bamboo chopsticks for sashimi according to claim 1, characterized in that, The conical tip processing mechanism includes a conical tip mold that rotates electrically. The conical tip processing mechanism is installed on a moving frame and reciprocates towards the conveyor belt. When the conical tip processing mechanism approaches the conveyor belt, the conical tip mold sleeves on the bottom end of the blank on the conveyor belt and grinds it into a conical tip.

3. The one-time forming device for the special bamboo chopsticks for sashimi according to claim 1, wherein, The slope processing mechanism includes a lifting first electric grinding wheel. When the top end of the blank on the conveyor belt passes under the first electric grinding wheel, it is ground into a slope.

4. The one-time forming device for the special bamboo chopsticks for sashimi according to claim 1, characterized in that, The chamfer processing mechanism includes a second electric grinding wheel. When the slope top end of the blank on the conveyor belt passes by the side of the second electric grinding wheel, it is ground into a chamfer.

5. A one-time forming device for special bamboo chopsticks for sashimi according to any one of claims 1-4, characterized in that, The device also includes a feeding mechanism, including a lifting positioning strip. The positioning strip is located above the feeding area of the chopstick groove. An feeding opening is arranged on the side of the feeding area of the chopstick groove. The end of the feeding conveyor belt for the blank is connected to the feeding opening.

6. A one-time forming device for special bamboo chopsticks for sashimi according to any one of claims 1-4, characterized in that, The relay positioning component includes an arc-shaped lever with a fulcrum hinged on the frame. One end of the arc-shaped lever is hinged to the roots of the second and third rotating elastic pressing pieces. The free ends of the second and third rotating elastic pressing pieces respectively press on the two ends of the blank on the conveyor belt; the other end of the arc-shaped lever is hinged to the root of the first rotating elastic pressing piece. The free end of the first rotating elastic pressing piece presses on the blank in the chopstick groove at the rear end of the left and right knife groups; the middle parts of the first, second and third rotating elastic pressing pieces are connected to the frame through springs.

7. An apparatus for one - time forming of special bamboo chopsticks for sashimi according to any one of claims 1 - 4, characterized in that, The forming tool reciprocates driven by the variable-diameter drive rod (404), causing the cutting edge of the tool to move away from or close to the chopstick groove (3) to change the cutting depth of the blank (2); the outer circumference of the flywheel (401) driven by the motor (400) is connected to the middle of the rocker arm (403) through the connecting rod (402). The rocker arm (403) simultaneously drives the punch rod (4) and the variable-diameter drive rod (404) to perform linear reciprocating motion. The punch rod (4) pushes the blank (2) into the chopstick groove (3), and the left and right convex parts (4041) of the variable-diameter drive rod (404) overcome the resistance of the return spring A (502) and are inserted between the two tool holders A (503); when passing through, the left and right convex parts (4041) and the return spring A (502) drive the two knives A (501) to reciprocate left and right through the tool holders A (503), and the distance between the cutting edges of the two knives A (501) first expands and then gradually shrinks; The upper and lower convex parts (4042) of the variable-diameter drive rod (404) overcome the resistance of the return spring B (601) and are inserted between the two tool holders B (602). When passing through, the upper and lower convex parts (4042) and the return spring B (601) drive the two knives B (603) to reciprocate up and down through the tool holders B (602), and the distance between the cutting edges of the two knives B (603) first expands and then gradually shrinks; The variable-diameter drive rod (404) uses its radial thickness change to make the cutting edge of the knife move away from or close to the chopstick groove (3) to change the cutting depth of the blank (2), so that during the process of the blank (2) moving along the chopstick groove (3), the four side surfaces of the blank (2) are cut into a square cone shape that gradually shrinks from the top to the bottom by the forming tool.

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