An automatic conveying device for producing degradable and environmentally friendly lunch boxes

Abstract

The present invention discloses an automatic conveying device for producing degradable and environmentally friendly lunch boxes, which relates to the technical field of producing environmentally friendly lunch boxes and comprises a conveying mechanism, wherein the conveying mechanism comprises a conveying support frame, wherein the right side surface of the conveying support frame is fixedly connected with an auxiliary conveying frame, wherein the interior of the conveying support frame is rotatably connected with a driving shaft and a driven shaft, respectively, wherein the outer surface of the driving shaft and the outer surface of the driven shaft are jointly sleeved with a conveying belt, wherein the conveying belt is rotatably connected to the interior of the conveying support frame, and the automatic conveying device for producing degradable and environmentally friendly lunch boxes clamps and fixes the environmentally friendly lunch boxes during transportation by arranging a stable clamping unit, thereby reducing the problem that the environmentally friendly lunch boxes may be offset or even dropped due to the irresistible influence of the external environment, thereby improving the processing quality of the degradable and environmentally friendly lunch boxes, saving manpower for calibrating the environmentally friendly lunch boxes, reducing the danger of manual operation, and improving the conveying production efficiency of the conveying device for conveying the environmentally friendly lunch boxes.

Description

Technical Field

[0001] The invention relates to the technical field of environmentally friendly lunch box production, and in particular to an automatic conveying device for producing degradable environmentally friendly lunch boxes. Background Art

[0002] Environmentally friendly lunch boxes are food containers made of materials that are harmless to the human body, the production process does not cause pollution to the environment, the product quality fully meets the national food hygiene requirements, and the products are easy to recycle, dispose of or consume after use. Environmentally friendly lunch boxes are mainly made of degradable plastic materials mixed with plant fibers, starch, gypsum powder, etc. During production, the degradable plastic material needs to be injected into the mold through an injection molding machine. The mold is opened after the injection molding is completed, and then the environmentally friendly lunch box production and processing conveying device is used to assist in transporting the environmentally friendly lunch box to the packing location for packing.

[0003] When the existing automatic conveying device for producing degradable and environmentally friendly lunch boxes is in use, since the degradable and environmentally friendly lunch boxes to be conveyed are light in texture, it is not convenient to clamp and fix the conveyed environmentally friendly lunch boxes during the process of conveying the injection-molded environmentally friendly lunch boxes by the automatic conveying device. The environmentally friendly lunch boxes may shift or even fall due to the irresistible influence of the external environment. Not only does it require manual correction of the environmentally friendly lunch boxes, which wastes manpower and increases the risk of manual operation, but the deviation of the environmentally friendly lunch boxes will also affect the packaging quality of the environmentally friendly lunch boxes, thereby reducing the conveying production efficiency of the automatic conveying device for conveying the degradable and environmentally friendly lunch boxes.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing automatic conveying devices for lunch box production on the market, and even if they can be solved, they need to be solved through external tools, which makes it impossible to achieve the desired effect. Therefore, we propose an automatic conveying device for the production of degradable and environmentally friendly lunch boxes. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic conveying device for producing degradable and environmentally friendly lunch boxes to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic conveying device for producing degradable and environmentally friendly lunch boxes, comprising a conveying mechanism, the conveying mechanism comprising a conveying support frame, the right side surface of the conveying support frame is fixedly connected to an auxiliary conveying frame, the interior of the conveying support frame is rotatably connected to a driving shaft and a driven shaft, the outer surface of the driving shaft and the outer surface of the driven shaft are jointly sleeved with a conveying conveyor belt, the conveying conveyor belt is rotatably connected to the interior of the conveying support frame, the surface of the conveying conveyor belt is provided with a processing lunch box group arranged at equal distances, the right end of the driving shaft is fixedly connected to a driving motor, and the left side of the auxiliary conveying frame is provided with a conveying stabilization mechanism;

[0007] The conveying stabilization mechanism includes a stabilization clamping unit, which is located on the left side of the auxiliary conveying frame and is used to stably clamp the conveyed processed meal box group;

[0008] The conveying stabilization mechanism also includes a self-locking circulation unit, which is located on the left side of the auxiliary conveying frame. The self-locking circulation unit is used in conjunction with the stabilizing clamping unit, and is used to cyclically lock and clamp the conveyed processed meal box group;

[0009] A conveying auxiliary mechanism is arranged on the right side of the stable clamping unit. The conveying auxiliary mechanism is used in conjunction with the conveying stabilizing mechanism. The conveying auxiliary mechanism is used to assist in conveying and stably clamping the processed lunch box group.

[0010] Preferably, the stable clamping unit includes two groups of circulating movable frames, each group of the circulating movable frames has three circulating movable frames, and the side surfaces of the two groups of circulating movable frames that are close to each other are respectively in contact with the upper surface and the bottom surface of the conveying support frame, and the interior of each group of the circulating movable frames is slidably connected with an extrusion slide plate, and the right side surface of each group of the circulating movable frames is fixedly inlaid with two telescopic springs, and the right ends of several groups of the telescopic springs are respectively fixedly connected to the left sides of the two groups of extrusion slide plates, and the left side surface of each group of the extrusion slide plates is fixedly connected with a moving slide bar, and the two groups of the moving slide bars are respectively slidably connected to the interior of the two groups of circulating movable frames, and each The interior of each group of the moving slide rods is rotatably connected with four first balls, the interior of each group of the circulating moving frames is rotatably connected with a rotating sleeve, several groups of the moving slide rods are slidably connected to the interior of several rotating sleeves, the inner wall of each rotating sleeve is provided with four first spiral grooves, several groups of the first balls slide along the interior of several groups of first spiral grooves, the outer surface of each group of the rotating sleeves is fixedly connected with a first bevel gear, the side surfaces of the two groups of the circulating moving frames away from each other are fixedly connected with mounting bearings, the inner ring of each group of the mounting bearings is fixedly connected with a transmission rod, and the two groups of transmission The ends of the moving rods close to each other are fixedly connected with the second bevel gears, the two groups of the first bevel gears are respectively meshed with the two groups of the second bevel gears, the outer surface of each group of the transmission rods is provided with four second spiral grooves, the outer surface of each group of the transmission rods is sleeved with sliding blocks, the two groups of sliding blocks are respectively slidably connected to the inside of the two groups of circulating moving frames, the inside of each group of the sliding blocks is rotatably connected with four second balls, several groups of the second balls slide along the inside of several groups of the second spiral grooves, the right side of each group of the sliding blocks is fixedly connected with a mounting block, and the right side of each group of the mounting blocks is fixedly connected There is a baffle, and each group of the mounting blocks is rotatably connected to two adjustment sleeves inside, and the outer surface of each group of the adjusting sleeves is fixedly connected to a clamping plate, wherein the upper surfaces of the two clamping plates are respectively in contact with the bottom surfaces of the two baffles, and the bottom surfaces of the two clamping plates are respectively in contact with the upper surfaces of the two processed lunch box groups, and the side surfaces of the two groups of mounting bearings close to each other are fixedly connected with a pulling elastic rope, and the end of each group of pulling elastic ropes close to the clamping plate is fixedly connected to an extension elastic rope, and the ends of several groups of extension elastic ropes close to the clamping plate are respectively fixedly connected to the outer surfaces of the two groups of clamping plates.

[0011] Preferably, the left side surface of each group of the circulating movable frames is fixedly connected to a gear box, and the two groups of rotating sleeves, two groups of first bevel gears, two groups of second bevel gears and two groups of transmission rods are respectively rotatably connected to the inside of the two groups of gear boxes.

[0012] Preferably, the side surfaces of the two groups of sliding blocks away from each other and the side surfaces of the two groups of mounting blocks away from each other are fixedly connected to two limiting rings, and the two groups of pulling elastic ropes and several groups of extending pulling elastic ropes are respectively slidably connected to the inside of several groups of limiting rings.

[0013] Preferably, the outer surface of each group of the extended elastic ropes is fixedly connected to a reinforcement block, and the outer surfaces of several groups of the reinforcement blocks are respectively fixedly connected to the outer surfaces of the two groups of clamping plates.

[0014] Preferably, the self-locking circulation unit comprises two groups of sliding rods, each group of the sliding rods has six sliding rods, the ends of the two groups of sliding rods close to each other are respectively fixedly connected to the front and back sides of the two groups of sliding blocks, the inner wall of each group of the circulating movable frame is provided with two sliding grooves, the two groups of sliding rods are respectively slidably connected to the inside of the two groups of sliding grooves, the bottom end of one group of the sliding rods is fixedly connected with a wedge-shaped self-locking buckle, the inner bottom wall of one group of the sliding grooves is provided with an L-shaped groove, wherein two of the wedge-shaped self-locking buckles are respectively clamped in the inside of two of the L-shaped grooves, and the An elastic extension frame is fixedly connected to the left side of the conveying support frame, and an extrusion rod is fixedly connected to the upper surface of the elastic extension frame. The extrusion rod is slidably connected to the inside of one of the L-shaped slots, and the front of the extrusion rod is in contact with the back of one of the wedge-shaped self-locking buckles. The left ends of the active rotating shaft and the driven rotating shaft are fixedly connected to rotating gears, and the outer surfaces of the two rotating gears are jointly sleeved with a conveying toothed belt, and each of the rotating gears is meshed with the conveying toothed belt, and the side surfaces of the two groups of circulating movable frames that are close to each other are fixedly connected to the outer surface of the conveying toothed belt.

[0015] Preferably, the conveying auxiliary mechanism includes an auxiliary bracket, the bottom surface of the auxiliary bracket is fixedly connected to the upper surface of the auxiliary conveying bracket, the inner wall of the auxiliary bracket is fixedly connected with a rotating motor, the output end of the rotating motor is fixedly connected with a rotating screw, the rotating screw is rotatably connected to the inside of the auxiliary bracket, the outer surface of the rotating screw is threadedly connected with a threaded sleeve block, the upper surface of the threaded sleeve block contacts the inner top wall of the auxiliary bracket, the bottom surface of the threaded sleeve block is fixedly connected with a moving block, the bottom surface of the moving block is fixedly connected with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected with a concave pushing plate, the bottom surface of the concave pushing plate contacts the upper surface of the conveying support frame and the outer surface of the conveying conveyor belt, the concave pushing plate is slidably connected to the inside of one of the circulating moving frames, the left side surface of the concave pushing plate contacts the right side surface of one of the extrusion slides, the front and back sides of one of the clamping plates are in contact with the inner wall of the concave pushing plate, and the outer surface of one of the processed lunch box groups contacts the inner wall of the concave pushing plate.

[0016] Preferably, the inner top wall of the auxiliary bracket is fixedly connected to two limit guide rails, the upper surface of the moving block is fixedly connected to two limit sliders, and the two limit sliders are respectively slidably connected to the inside of the two limit guide rails.

[0017] Preferably, a reinforcement ring is fixedly connected to the outer surface of the electric telescopic rod, and the upper surface of the reinforcement ring is fixedly connected to the bottom surface of the moving block.

[0018] Preferably, the telescopic end of the electric telescopic rod is fixedly connected to reinforcement rods that are equidistantly arranged in a circumference, and the left end of each reinforcement rod is fixedly connected to the right side surface of the concave push plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention can clamp and fix the degradable and environmentally friendly lunch boxes during transportation by providing a stable clamping unit, thereby reducing the problem that the environmentally friendly lunch boxes may be offset or even dropped due to the irresistible influence of the external environment, and can position the degradable and environmentally friendly lunch boxes during the process, thereby reducing the problem that the degradable and environmentally friendly lunch boxes cannot be properly packaged when they are transported to the packaging machine through the automatic conveying device due to the offset of the lunch boxes, thereby improving the processing quality of the degradable and environmentally friendly lunch boxes, saving manpower for calibrating the environmentally friendly lunch boxes, reducing the danger of manual operation, and further improving the conveying production efficiency of the automatic conveying device for conveying the degradable and environmentally friendly lunch boxes.

[0021] The present invention is provided with a self-locking circulation unit, which can lock the clamping plate for clamping the degradable and environmentally friendly lunch box into the L-shaped slot through the wedge-shaped self-locking buckle, so that the degradable and environmentally friendly lunch box can be clamped and fixed more stably during the transportation process, and the wedge-shaped self-locking buckle in the L-shaped slot is squeezed by the squeezing rod, and the clamping plate is synchronously driven to move by the conveying toothed belt, so that the clamping plate can be circulated to clamp the degradable and environmentally friendly lunch box in each transportation process, so that the degradable and environmentally friendly lunch boxes can be stably transported in large quantities, further improving the processing quality of the degradable and environmentally friendly lunch boxes, and improving the transportation production efficiency of the automatic conveying device for conveying the degradable and environmentally friendly lunch boxes.

[0022] The present invention provides a conveying auxiliary mechanism, which can cooperate with the stable clamping unit and the self-locking circulation unit, utilize the power provided by the rotating motor and the electric telescopic rod, and can push the degradable and environmentally friendly lunch box to a suitable position through the concave pushing plate, and utilize the concave pushing plate to push the extrusion slide plate, so as to facilitate the use of the clamping plate to descend to squeeze the degradable and environmentally friendly lunch box, and further facilitate the use of the automatic conveying device to convey and produce the degradable and environmentally friendly lunch boxes, and further reduce the problem that the environmentally friendly lunch box may be offset or even dropped due to the irresistible influence of the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a rear view structural schematic diagram of the conveying support frame of the present invention;

[0025] Figure 3 It is a schematic cross-sectional structural diagram of the conveyor belt of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the electric telescopic rod of the present invention when viewed from above;

[0027] Figure 5 It is a rear view structural schematic diagram of the threaded sleeve block of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the transmission rod of the present invention;

[0029] Figure 7 It is a rear view structural schematic diagram of the clamping plate of the present invention;

[0030] Figure 8 It is a rear structural schematic diagram of the circulating movable frame of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the extrusion slide plate of the present invention;

[0032] Fig.10 It is a schematic cross-sectional structural diagram of the gearbox of the present invention;

[0033] Fig.11 It is a structural schematic diagram of the sliding block of the present invention;

[0034] Fig.12 It is a schematic cross-sectional structural diagram of the circulating movable rack of the present invention.

[0035] In the figure: 1. conveying mechanism; 11. conveying support frame; 12. driving shaft; 13. driven shaft; 14. conveying conveyor belt; 15. driving motor; 16. auxiliary conveying frame; 17. processing lunch box group; 2. conveying stabilization mechanism; 21. stable clamping unit; 2101. circulating mobile frame; 2102. extrusion slide plate; 2103. moving slide bar; 2104. first ball; 2105. telescopic spring; 2106. gear box; 2107. rotating sleeve; 2108. first spiral slide groove; 2109. first bevel gear; 2110. second bevel gear; 2111. transmission rod; 2112. second spiral slide groove; 2113. mounting bearing; 2114. sliding block; 2115. second ball; 2116. clamping plate; 2117. Baffle; 2118, pull elastic rope; 2119, reinforcement block; 2120, extend and pull elastic rope; 2121, installation block; 2122, adjustment sleeve; 2123, limit ring; 22, self-locking circulation unit; 2201, sliding rod; 2202, wedge-shaped self-locking buckle; 2203, L-shaped slot; 2204, rotating gear; 2205, conveying toothed belt; 2206, elastic extension frame; 2207, extrusion rod; 2208, sliding slot; 3, conveying auxiliary mechanism; 301, auxiliary bracket; 302, limit guide rail; 303, limit slider; 304, threaded sleeve block; 305, rotating motor; 306, rotating screw; 307, moving block; 308, electric telescopic rod; 309, concave push plate; 310, reinforcement rod; 311, reinforcement ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1-Figure 3 and Figure 6-Figure 12 The present invention provides a technical solution: an automatic conveying device for producing degradable and environmentally friendly lunch boxes, comprising a conveying mechanism 1, the conveying mechanism 1 comprising a conveying support frame 11, the right side of the conveying support frame 11 is fixedly connected with an auxiliary conveying frame 16, the interior of the conveying support frame 11 is rotatably connected with a driving shaft 12 and a driven shaft 13, the outer surface of the driving shaft 12 and the outer surface of the driven shaft 13 are jointly sleeved with a conveying conveyor belt 14, the conveying conveyor belt 14 is rotatably connected to the interior of the conveying support frame 11, and the surface of the conveying conveyor belt 14 is provided with a processing lunch box group 17 arranged at equal distances, the right end of the driving shaft 12 is fixedly connected with a driving motor 15, and the left side of the auxiliary conveying frame 16 is provided with a conveying stabilization mechanism 2;

[0038] The conveying stabilization mechanism 2 includes a stabilization clamping unit 21 , which is located on the left side of the auxiliary conveying frame 16 . The stabilization clamping unit 21 is used to stably clamp the conveyed processed lunch box group 17 .

[0039] As a further limitation of the conveying stabilization mechanism 2 of the present invention, the stabilizing clamping unit 21 includes two groups of circulating movable frames 2101, each group of circulating movable frames 2101 has three members, and the side surfaces of the two groups of circulating movable frames 2101 that are close to each other are in contact with the upper surface and the bottom surface of the conveying support frame 11 respectively, and the interior of each group of circulating movable frames 2101 is slidably connected with an extrusion slide 2102, and the right side surface of each group of circulating movable frames 2101 is fixedly inlaid with two telescopic springs 2105, and the right ends of several groups of telescopic springs 2105 are respectively fixedly connected to the left sides of the two groups of extrusion slides 2102, and the left side surface of each group of extrusion slides 2102 is fixedly connected with a moving slide bar 2103, and the two groups of moving slide bars 2103 are respectively slidably connected to the two The inside of each group of circulating moving frames 2101 is rotatably connected with four first balls 2104, the inside of each group of moving slide bars 2103 is rotatably connected with a rotating sleeve 2107, several groups of moving slide bars 2103 are respectively slidably connected to the inside of several rotating sleeves 2107, the inner wall of each rotating sleeve 2107 is provided with four first spiral grooves 2108, several groups of first balls 2104 slide along the inside of several groups of first spiral grooves 2108, the outer surface of each group of rotating sleeves 2107 is fixedly connected with a first bevel gear 2109, and the side surfaces of the two groups of circulating moving frames 2101 away from each other are fixedly connected with a mounting bearing 2113, and each group of mounting bearings 2113 is fixedly connected with a first bevel gear 2109. The inner rings of the two transmission rods 2111 are fixedly connected to the transmission rods 2111, and the ends of the two transmission rods 2111 close to each other are fixedly connected to the second bevel gears 2110, and the two first bevel gears 2109 are respectively meshed with the two second bevel gears 2110, and the outer surface of each transmission rod 2111 is provided with four second spiral grooves 2112, and the outer surface of each transmission rod 2111 is sleeved with a sliding block 2114, and the two sliding blocks 2114 are respectively slidably connected to the inside of the two circulating moving frames 2101, and the inside of each sliding block 2114 is rotatably connected with four second balls 2115, and the plurality of second balls 2115 slide along the inside of the plurality of second spiral grooves 2112, and the right side of each sliding block 2114 The side surfaces are fixedly connected with mounting blocks 2121, the right side surfaces of each group of mounting blocks 2121 are fixedly connected with baffle plates 2117, the interior of each group of mounting blocks 2121 are rotatably connected with two adjustment sleeves 2122, the outer surface of each group of adjustment sleeves 2122 are fixedly connected with clamping plates 2116, wherein the upper surfaces of the two clamping plates 2116 are respectively in contact with the bottom surfaces of the two baffle plates 2117, wherein the bottom surfaces of the two clamping plates 2116 are respectively in contact with the upper surfaces of the two processed lunch box groups 17, the side surfaces of the two groups of mounting bearings 2113 close to each other are fixedly connected with pulling elastic ropes 2118, and the end of each group of pulling elastic ropes 2118 close to the clamping plate 2116 is fixedly connected with an extension pulling elastic rope 2120,One end of a plurality of groups of extended elastic ropes 2120 close to the clamping plate 2116 is fixedly connected to the outer surface of the two groups of clamping plates 2116 respectively. By setting the stable clamping unit 21, the processed lunch box group 17 in the transportation process can be clamped and fixed, thereby reducing the problem that the processed lunch box group 17 may be offset or even dropped due to the irresistible influence of the external environment, and positioning the processed lunch box group 17 in the process, reducing the problem that the processed lunch box group 17 cannot be properly packaged due to the offset of the lunch box when it is transported to the packaging machine through the automatic conveying device, thereby improving the processing quality of the processed lunch box group 17, saving manpower for correcting the processed lunch box group 17, reducing the danger of manual operation, and thus improving the conveying production efficiency of the automatic conveying device for conveying the processed lunch box group 17;

[0040] The left side of each group of circulating mobile racks 2101 is fixedly connected with a gear box 2106, and two groups of rotating sleeves 2107, two groups of first bevel gears 2109, two groups of second bevel gears 2110 and two groups of transmission rods 2111 are respectively rotatably connected to the inside of the two groups of gear boxes 2106. The gear box 2106 can make the two groups of rotating sleeves 2107, two groups of first bevel gears 2109, two groups of second bevel gears 2110 and two groups of transmission rods 2111 rotate more stably on one side of the circulating mobile rack 2101, so that the processed lunch box group 17 can be stably clamped and transported;

[0041] Two limiting rings 2123 are fixedly connected to the side faces of the two sets of sliding blocks 2114 that are away from each other and the side faces of the two sets of mounting blocks 2121 that are away from each other. The two sets of pulling elastic ropes 2118 and the plurality of extending elastic ropes 2120 are respectively slidably connected to the interiors of the plurality of limiting rings 2123. The sliding pulling elastic ropes 2118 and the extending elastic ropes 2120 can be limited by the limiting rings 2123, so as to facilitate stable adjustment of the position of the clamping plate 2116.

[0042] The outer surface of each group of extension elastic ropes 2120 is fixedly connected to a reinforcement block 2119, and the outer surfaces of several groups of reinforcement blocks 2119 are respectively fixedly connected to the outer surfaces of two groups of clamping plates 2116. The reinforcement blocks 2119 are used to improve the connection stability between the extension elastic ropes 2120 and the clamping plates 2116, so that the position of the clamping plates 2116 can be further stably adjusted.

[0043] The specific implementation method of this embodiment is as follows: when it is necessary to use the automatic conveying device to convey and produce degradable and environmentally friendly lunch boxes, the automatic conveying device for producing degradable and environmentally friendly lunch boxes is first installed in the workshop manually, and the input side of the automatic conveying device is set at the output end of the semi-finished product of the degradable and environmentally friendly lunch box, and the output side of the degradable and environmentally friendly lunch box is set at the input end of the finished product packaging machine of the degradable and environmentally friendly lunch box, which can facilitate the production, conveying and processing of the degradable and environmentally friendly lunch boxes. By controlling the power supply of the driving motor 15, the driving motor 15 can be used to drive the active rotating shaft 12 to rotate in the conveying support frame 11, and through the cooperation of the active rotating shaft 12 and the driven rotating shaft 13, the conveying conveyor belt 14 can be used to drive the semi-finished product processing lunch box group 17 to the degradable The finished product packaging machine of the environmentally friendly lunch box is conveyed by the auxiliary conveying frame 16 fixed on one side of the conveying support frame 11, so that the processed lunch box group 17 on the conveying conveyor belt 14 can be easily supplemented, so that a large number of processed lunch box groups 17 can be conveyed and processed. Then, when the conveying conveyor belt 14 is used to convey the processed lunch box group 17 to the position directly opposite to the auxiliary conveying frame 16, the concave pushing plate 309 in the conveying auxiliary mechanism 3 squeezes the squeezing slide plate 2102 in the circulating movable frame 2101, so that the squeezing slide plate 2102 slides in the circulating movable frame 2101, and the moving slide bar 2103 fixed on one side of the squeezing slide plate 2102 can slide in the circulating movable frame 2101, and at the same time, the circulating movable frame 2101 and the squeezing slide plate 2103 can be adjusted. The telescopic spring 2105 between 102 is squeezed and compressed. Since a plurality of first balls 2104 rotate inside the movable slide bar 2103, and a rotating sleeve 2107 rotates inside the circulating movable frame 2101, the first balls 2104 rotating inside the movable slide bar 2103 can slide along the first spiral groove 2108 provided on the inner wall of the rotating sleeve 2107. The spiral cooperation between the first balls 2104 and the first spiral groove 2108 can enable the movable slide bar 2103 to move inside the rotating sleeve 2107 and drive the rotating sleeve 2107 to rotate inside the circulating movable frame 2101. The first bevel gear 2109 fixed outside the rotating sleeve 2107 and the second bevel gear 2109 fixed at the bottom end of the transmission rod 2111 can be driven to rotate. The gear 2110 is meshed, thereby driving the transmission rod 2111 to rotate in the gear box 2106. Since a sliding block 2114 that can move up and down is arranged outside the transmission rod 2111, the multiple second balls 2115 rolling inside the sliding block 2114 can slide in the multiple second spiral grooves 2112 opened outside the transmission rod 2111, so that the sliding block 2114 can move downward along the transmission rod 2111 through the spiral cooperation between the second spiral grooves 2112 and the second balls 2115. When the sliding block 2114 moves downward, the pulling elastic rope 2118 fixed to the bottom surface of the mounting bearing 2113 is stretched, so that the pulling elastic rope 2118 and the extended pulling elastic rope 2120 slide along the limiting ring 2123.Thus, the clamping plate 2116 and the sleeve 2122 can be pulled upward by extending the elastic rope 2120 and pulling the elastic rope 2118 until the upper surface of the clamping plate 2116 is blocked by the baffle 2117, and the downward movement of the sliding block 2114 can make the clamping plate 2116 squeeze and clamp the processed lunch box group 17 on the conveyor belt 14, thereby reducing the problem that the processed lunch box group 17 may deviate or even fall due to the irresistible influence of the external environment, and positioning the processed lunch box group 17 in the process, reducing the problem that the processed lunch box group 17 cannot be properly packaged due to the deviation of the lunch box when it is transported to the packaging machine through the automatic conveying device, thereby improving the processing quality of the processed lunch box group 17, saving manpower for correcting the processed lunch box group 17, reducing the danger of manual operation, and thus improving the conveying production efficiency of the automatic conveying device for conveying the processed lunch box group 17.

[0044] Example 2: Please refer to Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig.11 and Fig.12 The present invention provides a technical solution: an automatic conveying device for producing degradable and environmentally friendly lunch boxes. The present invention makes corresponding improvements to the technical problems mentioned in the background technology.

[0045] As a further limitation of the conveying stabilization mechanism 2 of the present invention, the conveying stabilization mechanism 2 also includes a self-locking circulation unit 22, which is located on the left side of the auxiliary conveying frame 16, and the self-locking circulation unit 22 is used in conjunction with the stabilization clamping unit 21, and the self-locking circulation unit 22 is used to cyclically lock and clamp the conveyed processed meal box group 17;

[0046] The self-locking circulation unit 22 includes two groups of sliding rods 2201, each group of sliding rods 2201 has six in number, and the ends of the two groups of sliding rods 2201 close to each other are fixedly connected to the front and back sides of the two groups of sliding blocks 2114, respectively. The inner wall of each group of circulating movable frames 2101 is provided with two sliding grooves 2208, and the two groups of sliding rods 2201 are respectively slidably connected to the inside of the two groups of sliding grooves 2208, wherein the bottom end of one group of sliding rods 2201 is fixedly connected with a wedge-shaped self-locking buckle 2202, and the inner bottom wall of one group of sliding grooves 2208 is provided with an L-shaped groove 2203, wherein Two wedge-shaped self-locking buckles 2202 are respectively connected to the inside of two L-shaped slots 2203. The two wedge-shaped self-locking buckles 2202 refer to the wedge-shaped self-locking buckles 2202 on the circulating movable frame 2101 that clamps the processed lunch box group 17. The left side of the conveying support frame 11 is fixedly connected with an elastic extension frame 2206. The upper surface of the elastic extension frame 2206 is fixedly connected with an extrusion rod 2207. The extrusion rod 2207 is slidably connected to the inside of one of the L-shaped slots 2203. The front of the extrusion rod 2207 contacts the back of one of the wedge-shaped self-locking buckles 2202. The left end of the active rotating shaft 12 and the left end of the driven rotating shaft 13 are both fixedly connected with a rotating gear 2204, and the outer surfaces of the two rotating gears 2204 are jointly sleeved with a conveyor toothed belt 2205, and each rotating gear 2204 is meshed with the conveyor toothed belt 2205. The side surfaces of the two sets of circulating movable frames 2101 close to each other are fixedly connected with the outer surface of the conveyor toothed belt 2205. By setting a self-locking circulation unit 22, the wedge-shaped self-locking buckle 2202 can be clamped into the L-shaped groove 2203, so as to lock the clamping plate 2116 for clamping the processed lunch box group 17, so as to prevent the clamping plate 2116 from being locked. The processed meal box group 17 in the transportation process can be clamped and fixed more stably, and the wedge-shaped self-locking buckle 2202 in the L-shaped slot 2203 is squeezed by the squeezing rod 2207, and the clamping plate 2116 is synchronously driven to move by the conveying toothed belt 2205, so that the clamping plate 2116 can be recycled to clamp the processed meal box group 17 in each transportation process, so that the processed meal box group 17 can be stably transported in large quantities, further improving the processing quality of the processed meal box group 17, and improving the conveying production efficiency of the processed meal box group 17 by the automatic conveying device;

[0047] The specific implementation method of this embodiment is as follows: while the clamping plate 2116 is used to clamp and position the processed lunch box group 17, the sliding rods 2201 fixed on both sides of the sliding block 2114 can slide in the sliding grooves 2208 opened on the inner wall of the circulating movable frame 2101. While the clamping plate 2116 is used to clamp and position the processed lunch box group 17, the wedge-shaped self-locking buckle 2202 at the bottom end of the sliding rod 2201 can be clamped into the L-shaped slot 2203 connected to the sliding slot 2208. The special shape of the wedge-shaped self-locking buckle 2202 and the L-shaped slot 2203 can make the wedge-shaped self-locking buckle 2202 stable. The L-shaped card slot 2203 is firmly clamped inside, so that the structure of clamping and positioning the processing lunch box group 17 by the clamping plate 2116 can be locked, so that by controlling the power supply of the driving motor 15, the rotating active shaft 12 and the driven shaft 13 can be used to drive the rotating gear 2204 to rotate, and the two rotating gears 2204 are engaged to drive the conveyor belt 2205 to rotate, and by fixing multiple circulating moving frames 2101 at equal distances to the outer surface of the conveyor belt 2205, the multiple structures of clamping and positioning the processing lunch box group 17 can be synchronized with the conveyor belt 14, so that the conveyor belt 14 can be used to move. 4, the processed lunch box group 17 after clamping and positioning is stably conveyed until the squeezing rod 2207 squeezes the wedge-shaped self-locking buckle 2202 in the movable L-shaped slot 2203, so that the wedge-shaped self-locking buckle 2202 in the L-shaped slot 2203 can be pushed out of the L-shaped slot 2203. Since a compressed telescopic spring 2105 is fixed between the squeezing slide plate 2102 and the circulating movable frame 2101, the elastic force in the telescopic spring 2105 can be released, so that the squeezing slide plate 2102 squeezed in the circulating movable frame 2101 can slide toward the outside of the circulating movable frame 2101, thereby repeating the above-mentioned clamping operation. The step of clamping and positioning the processing lunch box group 17 by the plate 2116 is that the clamping plate 2116 does not clamp and position the processing lunch box group 17, but retracts the clamping plate 2116 into the circulating movable frame 2101, so that through the conveying action of the conveyor toothed belt 2205, the structure of clamping and positioning multiple processing lunch box groups 17 can be circulated to clamp and position the processing lunch box group 17 transported on the conveyor belt 14, so that the processing lunch box group 17 can be stably conveyed in large quantities, further improving the processing quality of the processing lunch box group 17, and improving the conveying production efficiency of the processing lunch box group 17 of the automatic conveying device.

[0048] Example 3: Please refer to Figure 1-Figure 5 The present invention provides a technical solution: an automatic conveying device for producing degradable and environmentally friendly lunch boxes. The present invention makes corresponding improvements to the technical problems mentioned in the background technology.

[0049] As a further limitation of the conveying stabilization mechanism 2 of the present invention, a conveying auxiliary mechanism 3 is provided on the right side of the stabilization clamping unit 21, and the conveying auxiliary mechanism 3 is used in conjunction with the conveying stabilization mechanism 2, and the conveying auxiliary mechanism 3 is used to assist in conveying and stably clamping the processed lunch box group 17;

[0050] The conveying auxiliary mechanism 3 includes an auxiliary bracket 301, the bottom surface of the auxiliary bracket 301 is fixedly connected to the upper surface of the auxiliary conveying frame 16, the inner wall of the auxiliary bracket 301 is fixedly connected with a rotating motor 305, the output end of the rotating motor 305 is fixedly connected with a rotating screw 306, the rotating screw 306 is rotatably connected to the inside of the auxiliary bracket 301, the outer surface of the rotating screw 306 is threadedly connected with a threaded sleeve 304, the upper surface of the threaded sleeve 304 is in contact with the inner top wall of the auxiliary bracket 301, the bottom surface of the threaded sleeve 304 is fixedly connected with a moving block 307, the bottom surface of the moving block 307 is fixedly connected with an electric telescopic rod 308, the telescopic end of the electric telescopic rod 308 is fixedly connected with a concave pushing plate 309, the bottom surface of the concave pushing plate 309 is in contact with the upper surface of the conveying support frame 11 and the outer surface of the conveying conveyor belt 14, the concave pushing plate 309 is slidably connected to the inside of one of the circulating moving frames 2101, and the concave pushing plate 309 is slidably connected to the inside of one of the circulating moving frames 2101. The left side of the plate 309 contacts the right side of one of the extrusion slide plates 2102, the front and back sides of one of the clamping plates 2116 contact the inner wall of the concave push plate 309, and the outer surface of one of the processed lunch box groups 17 contacts the inner wall of the concave push plate 309. By setting the conveying auxiliary mechanism 3, the processing lunch box group 17 can be pushed to a suitable position by the concave push plate 309 through the cooperation with the stable clamping unit 21 and the self-locking circulation unit 22, and the power provided by the rotating motor 305 and the electric telescopic rod 308, and the concave push plate 309 is used to push the extrusion slide plate 2102, so as to facilitate the use of the clamping plate 2116 to descend and squeeze the processing lunch box group 17, and then it can be further convenient to use the automatic conveying device to convey the processing lunch box group 17 for production, and further reduce the problem that the processing lunch box group 17 may be offset or even fall due to the irresistible influence of the external environment;

[0051] The inner top wall of the auxiliary bracket 301 is fixedly connected to two limiting guide rails 302, and the upper surface of the moving block 307 is fixedly connected to two limiting sliders 303. The two limiting sliders 303 are respectively slidably connected to the inside of the two limiting guide rails 302. By sliding the limiting sliders 303 in the limiting guide rails 302, the moving block 307 can slide along the rotating screw 306, thereby improving the movement stability of the moving block 307.

[0052] The outer surface of the electric telescopic rod 308 is fixedly connected with a reinforcement ring 311, and the upper surface of the reinforcement ring 311 is fixedly connected to the bottom surface of the moving block 307. Since the connection between the electric telescopic rod 308 and the moving block 307 is subject to a large shear force, the reinforcement ring 311 is used to fix it at this position, thereby improving the movement stability of the concave push plate 309;

[0053] The telescopic end of the electric telescopic rod 308 is fixedly connected to reinforcement rods 310 that are arranged in a circle at equal distances. The left end of each reinforcement rod 310 is fixedly connected to the right side surface of the concave push plate 309. By fixing multiple reinforcement rods 310 outside the telescopic end of the electric telescopic rod 308 and the concave push plate 309, the electric telescopic rod 308 can stably drive the concave push plate 309 to move, thereby further improving the movement stability of the concave push plate 309.

[0054] The specific implementation of this embodiment is as follows: when the stably clamped processed meal box group 17 is transported by the conveyor belt 14, the auxiliary conveyor frame 16 can be used to transport the supplementary processed meal box group 17 to the conveyor belt 14, thereby improving the conveying efficiency of the automatic conveying device. The power supply of the rotating motor 305 and the electric telescopic rod 308 can be controlled to drive the concave push plate 309 to move downward until the bottom of the concave push plate 309 can contact the upper surface of the auxiliary conveyor frame 16, and the power supply of the rotating motor 305 can be controlled to drive the rotating screw 306 to rotate in the auxiliary bracket 301, and the rotating screw 306 is threadedly matched with the threaded sleeve block 304 fixed on the moving block 307. By rotating the rotating screw 306, the threaded sleeve block 304 can move along the rotating screw 306 with the moving block 307 and the concave pushing plate 309, so that the concave pushing plate 309 can be used to push the processed lunch box group 17 transported on the auxiliary conveying frame 16 to a suitable position on the conveying conveyor belt 14. At the same time, the extrusion slide plate 2102 in the circulating movable frame 2101 can be squeezed by the moving concave pushing plate 309, so that the clamping plate 2116 can be used to clamp and position the processed lunch box group 17, and then the automatic conveying device can be used to further facilitate the conveying and production of the processed lunch box group 17, and further reduce the problem that the processed lunch box group 17 may be offset or even fall due to the irresistible influence of the external environment.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic conveying device for producing biodegradable and environmentally friendly lunch boxes, comprising a conveying mechanism (1), characterized in that: The conveying mechanism (1) comprises a conveying support frame (11), the right side surface of the conveying support frame (11) is fixedly connected to an auxiliary conveying frame (16), the interior of the conveying support frame (11) is rotatably connected to a driving shaft (12) and a driven shaft (13), the outer surface of the driving shaft (12) and the outer surface of the driven shaft (13) are jointly sleeved with a conveying conveyor belt (14), the conveying conveyor belt (14) is rotatably connected to the interior of the conveying support frame (11), and the surface of the conveying conveyor belt (14) is provided with a processing lunch box group (17) arranged at equal distances, the right end of the driving shaft (12) is fixedly connected to a driving motor (15), and the left side of the auxiliary conveying frame (16) is provided with a conveying stabilization mechanism (2); The conveying stabilization mechanism (2) comprises a stabilization clamping unit (21), the stabilization clamping unit (21) being located on the left side of the auxiliary conveying frame (16), and the stabilization clamping unit (21) being used to stably clamp the conveyed processed lunch box group (17); The conveying stabilization mechanism (2) further comprises a self-locking circulation unit (22), the self-locking circulation unit (22) being located on the left side of the auxiliary conveying frame (16), the self-locking circulation unit (22) being used in conjunction with the stabilization clamping unit (21), the self-locking circulation unit (22) being used to cyclically lock and clamp the conveyed processed lunch box group (17); A conveying auxiliary mechanism (3) is provided on the right side of the stable clamping unit (21), and the conveying auxiliary mechanism (3) is used in conjunction with the conveying stable mechanism (2). The conveying auxiliary mechanism (3) is used to assist in conveying and stably clamping the processed lunch box group (17); The stable clamping unit (21) comprises two groups of circulating movable frames (2101), each group of the circulating movable frames (2101) comprises three circulating movable frames (2101), the side surfaces of the two groups of circulating movable frames (2101) being close to each other are in contact with the upper surface and the bottom surface of the conveying support frame (11), respectively, and the interior of each group of the circulating movable frames (2101) is slidably connected to a squeezing slide plate (2102); The conveying auxiliary mechanism (3) comprises an auxiliary bracket (301), the bottom surface of the auxiliary bracket (301) is fixedly connected to the upper surface of the auxiliary conveying bracket (16), the inner wall of the auxiliary bracket (301) is fixedly connected to a rotating motor (305), the output end of the rotating motor (305) is fixedly connected to a rotating screw (306), the rotating screw (306) is rotatably connected to the inside of the auxiliary bracket (301), the outer surface of the rotating screw (306) is threadedly connected to a threaded sleeve (304), the upper surface of the threaded sleeve (304) is in contact with the inner top wall of the auxiliary bracket (301), and the The bottom surface of the threaded sleeve block (304) is fixedly connected to a moving block (307), the bottom surface of the moving block (307) is fixedly connected to an electric telescopic rod (308), the telescopic end of the electric telescopic rod (308) is fixedly connected to a concave push plate (309), the bottom surface of the concave push plate (309) is in contact with the upper surface of the conveying support frame (11) and the outer surface of the conveying conveyor belt (14), the concave push plate (309) is slidably connected to the inside of one of the circulating moving frames (2101), and the left side surface of the concave push plate (309) is in contact with the right side surface of one of the extrusion slide plates (2102).

2. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 1 is characterized by: The right side of each group of the circulating movable frames (2101) is fixedly inlaid with two telescopic springs (2105); the right ends of several groups of the telescopic springs (2105) are respectively fixedly connected to the left sides of the two groups of extrusion slides (2102); the left side of each group of the extrusion slides (2102) is fixedly connected with a moving slide bar (2103); the two groups of the moving slide bars (2103) are respectively slidably connected to the inside of the two groups of circulating movable frames (2101); the inside of each group of the moving slide bars (2103) is rotatably connected with four first balls (2104); the inside of each group of the circulating movable frames (2101) is rotatably connected with a rotating sleeve (2107); several groups of the moving slide bars (2103) are respectively fixedly connected to the left sides of the two groups of extrusion slides (2102); The first and second rotating sleeves (2107) are slidably connected to the inside of a plurality of rotating sleeves (2107), the inner wall of each rotating sleeve (2107) is provided with four first spiral grooves (2108), a plurality of groups of the first balls (2104) slide along the inside of the plurality of groups of the first spiral grooves (2108), the outer surface of each group of the rotating sleeves (2107) is fixedly connected with a first bevel gear (2109), the side surfaces of the two groups of the circulating moving frames (2101) away from each other are fixedly connected with a mounting bearing (2113), the inner ring of each group of the mounting bearing (2113) is fixedly connected with a transmission rod (2111), and the ends of the two groups of the transmission rods (2111) close to each other are fixedly connected with a second bevel gear (2109). The two groups of the first bevel gears (2109) are respectively meshed with the two groups of the second bevel gears (2110), the outer surface of each group of the transmission rods (2111) is provided with four second spiral grooves (2112), the outer surface of each group of the transmission rods (2111) is sleeved with a sliding block (2114), the two groups of the sliding blocks (2114) are respectively slidably connected to the inside of the two groups of circulating movable frames (2101), the inside of each group of the sliding blocks (2114) is rotatably connected with four second balls (2115), and the plurality of groups of the second balls (2115) slide along the inside of the plurality of groups of the second spiral grooves (2112), and the right side of each group of the sliding blocks (2114) The surfaces are fixedly connected with mounting blocks (2121), the right side surfaces of each group of mounting blocks (2121) are fixedly connected with baffles (2117), the interior of each group of mounting blocks (2121) are rotatably connected with two adjustment sleeves (2122), the outer surface of each group of adjustment sleeves (2122) are fixedly connected with clamping plates (2116), the upper surfaces of the two clamping plates (2116) are respectively in contact with the bottom surfaces of the two baffles (2117), the bottom surfaces of the two clamping plates (2116) are respectively in contact with the upper surfaces of the two processed lunch box groups (17), and the side surfaces of the two groups of mounting bearings (2113) close to each other are fixedly connected with pulling elastic ropes (2118),One end of each group of the pulling elastic ropes (2118) close to the clamping plate (2116) is fixedly connected to an extension elastic rope (2120), and one end of several groups of the extension elastic ropes (2120) close to the clamping plate (2116) is fixedly connected to the outer surfaces of the two groups of clamping plates (2116).

3. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 2 is characterized by: The left side surface of each set of the circulating movable frames (2101) is fixedly connected to a gear box (2106), and the two sets of rotating sleeves (2107), the two sets of first bevel gears (2109), the two sets of second bevel gears (2110) and the two sets of transmission rods (2111) are respectively rotatably connected to the inside of the two sets of gear boxes (2106).

4. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 2 is characterized by: The side surfaces of the two groups of sliding blocks (2114) that are away from each other and the side surfaces of the two groups of mounting blocks (2121) that are away from each other are fixedly connected to two limiting rings (2123), and the two groups of pulling elastic ropes (2118) and the plurality of extending pulling elastic ropes (2120) are respectively slidably connected to the inside of the plurality of limiting rings (2123).

5. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 2 is characterized by: The outer surface of each group of the extending elastic ropes (2120) is fixedly connected to a reinforcement block (2119), and the outer surfaces of several groups of the reinforcement blocks (2119) are respectively fixedly connected to the outer surfaces of the two groups of clamping plates (2116).

6. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 2 is characterized by: The self-locking circulation unit (22) comprises two groups of sliding rods (2201), each group of the sliding rods (2201) has six sliding rods, the ends of the two groups of sliding rods (2201) close to each other are respectively fixedly connected to the front and back sides of the two groups of sliding blocks (2114), the inner wall of each group of the circulating movable frame (2101) is provided with two sliding grooves (2208), the two groups of sliding rods (2201) are respectively slidably connected to the inside of the two groups of sliding grooves (2208), the bottom end of one group of the sliding rods (2201) is fixedly connected with a wedge-shaped self-locking buckle (2202), the inner bottom wall of one group of the sliding grooves (2208) is provided with an L-shaped buckle (2203), two of the wedge-shaped self-locking buckles (2202) are respectively clamped in the inside of two of the L-shaped buckles (2203), and the conveying support frame ( The left side of the driving shaft (11) is fixedly connected to an elastic extension frame (2206), the upper surface of the elastic extension frame (2206) is fixedly connected to an extrusion rod (2207), the extrusion rod (2207) is slidably connected to the inside of one of the L-shaped slots (2203), the front of the extrusion rod (2207) is in contact with the back of one of the wedge-shaped self-locking buckles (2202), the left end of the driving shaft (12) and the left end of the driven shaft (13) are both fixedly connected to a rotating gear (2204), the outer surfaces of the two rotating gears (2204) are jointly sleeved with a conveying toothed belt (2205), each of the rotating gears (2204) is meshed with the conveying toothed belt (2205), and the side surfaces of the two groups of the circulating movable frames (2101) that are close to each other are fixedly connected to the outer surface of the conveying toothed belt (2205).

7. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 2 is characterized by: The front and back surfaces of one of the clamping plates (2116) are in contact with the inner wall of the concave push plate (309), and the outer surface of one of the processed lunch box sets (17) is in contact with the inner wall of the concave push plate (309).

8. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 7 is characterized by: The inner top wall of the auxiliary bracket (301) is fixedly connected to two limit guide rails (302), the upper surface of the moving block (307) is fixedly connected to two limit sliders (303), and the two limit sliders (303) are respectively slidably connected to the inside of the two limit guide rails (302).

9. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 7, characterized in that: A reinforcement ring (311) is fixedly connected to the outer surface of the electric telescopic rod (308), and the upper surface of the reinforcement ring (311) is fixedly connected to the bottom surface of the moving block (307).

10. The automatic conveying device for producing degradable and environmentally friendly lunch boxes according to claim 7, characterized in that: The telescopic end of the electric telescopic rod (308) is fixedly connected to reinforcing rods (310) arranged in a circumferential manner at equal distances, and the left end of each reinforcing rod (310) is fixedly connected to the right side surface of the concave push plate (309).

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