Paper cutlery and spoon production equipment

Abstract

The present invention discloses a production equipment for paper cutlery and fork spoons, which is mainly characterized in that a blank storage mechanism comprises a first side plate, a second side plate and a bottom plate, the bottom plate can be lifted and arranged between the first side plate and the second side plate, a third manipulator that can be moved and lifted is arranged at the tail end of the discharging mechanism, and a clamping device with a circulating transmission is arranged at the tail end of the discharging mechanism, the clamping device comprises a first clamping plate and a second clamping plate, a connecting rod is fixed on the second clamping plate, the first clamping plate is movably arranged on the connecting rod, and a flange is arranged on the connecting rod, a spring is sleeved between the flange of the connecting rod and the first clamping plate, and a retractable strut is arranged at the clamping end of the clamping device, the strut can open the first clamping plate and the second clamping plate, and an oiling device and a drying device are arranged in sequence on the transmission path of the clamping device. The production equipment with this structure occupies a small area, has a high degree of automation and production efficiency, and has a good application effect.

Description

Technical Field

[0001] The invention relates to a processing technology for paper tableware, in particular to production equipment for paper cutlery, fork and spoon. Background Art

[0002] With the accelerated pace of life, convenient and fast disposable tableware has emerged. In particular, the current catering and takeaway industries have an increasing demand for disposable tableware. In addition to disposable packaging containers, the use of disposable knives, forks and spoons is also increasing. The most common disposable tableware on the market is mostly plastic. Although plastic tableware is economical, its biggest problem is that the material is not recyclable and non-degradable, and a large amount of discarded tableware is increasingly polluting the environment. In order to solve the problem of environmental pollution, paper tableware is used more and more. Paper tableware, especially knives, forks and spoons, is made by pressing multiple layers of paper into cardboard with a certain hardness, punching them into blanks, and then forming them. Because it is a paper material, in order to prevent it from being soaked in liquid and easily damaged during use, the formed knives, forks and spoons are often oiled. By checking the Chinese patent database, we get an invention patent application with application publication number CN113276482A and name “A varnishing production line for paper cutlery and spoons”, which discloses the following content: A varnishing production line for paper cutlery and spoons, characterized in that: the varnishing production line comprises: a frame; a conveying device, which is arranged on the frame and is used to convey the paper cutlery and spoons from one end of the frame to the other end of the frame; a clamping device, which is arranged on the conveying device and is used to fix the paper cutlery and spoons on the conveying device, and the paper cutlery and spoons are separated from the conveying device at the corresponding position; an oil immersion tank, which is arranged on the frame and is used to immerse the paper cutlery and spoons; a drying device, which is arranged on the frame and is used to quickly dry the paper cutlery and spoons after being immersed in oil. The invention also discloses a clamping device including a clamp, a clamp connection block, a fixing block, a bottom plate, a first paper clamp auxiliary opening block and a second clamp auxiliary opening block. During the transmission process of the conveyor chain, the clamp can rotate with the clamp connection block relative to the conveyor chain to realize the change of the position relationship of the paper cutlery and spoon on the clamp 5 from vertical to horizontal. The change of the position relationship from vertical to horizontal is realized by the first guide rod and the second guide rod. As shown in the attached drawings, the clamp of the varnishing oil production line with this structure can only clamp one cutlery and spoon at a time, and the production efficiency is very low. Moreover, the oil immersion tank is on the outside of the machine body and is horizontally transmitted by a conveyor chain. During the transmission process of the conveyor chain, the clamp is converted from a vertical to a horizontal position. This structure increases the floor space of the equipment and is very inconvenient to immerse in oil. Summary of the invention

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide a production equipment for paper cutlery and spoon with high production efficiency and small footprint.

[0004] To this end, the present invention is implemented by adopting the following technical scheme: a production device for paper cutlery and fork spoon, comprising a blank storage mechanism, a molding mechanism and a discharging mechanism, a movable first manipulator is provided above the blank storage mechanism, the first manipulator can transfer the blank from the blank storage mechanism to the molding mechanism, the discharging mechanism is arranged on one side of the molding mechanism, and a movable second manipulator is provided above the discharging mechanism, the second manipulator can transfer the formed blank to the discharging mechanism, characterized in that the blank storage mechanism comprises a first side plate, a second side plate and a bottom plate, the bottom plate can be lifted and lowered between the first side plate and the second side plate, and a movable and liftable third manipulator is provided at the tail end of the discharging mechanism. , and a circulating transmission clamping device is provided at the tail end of the discharging mechanism, the third manipulator transfers the knife, fork and spoon to the clamping device, the clamping device includes a first clamping plate, a second clamping plate and a mounting plate, a connecting rod is fixed on the second clamping plate, the first clamping plate is movably inserted into the connecting rod, and a flange is provided on the connecting rod, the second clamping plate is fixed to the mounting plate, both ends of the mounting plate are installed on two parallel chains that are synchronously circulated and transmitted, a spring is sleeved between the flange of the connecting rod and the first clamping plate, and a retractable strut is provided at the clamping end of the clamping device, the strut can open the first clamping plate and the second clamping plate, and an oiling device and a drying device are sequentially provided on the transmission path of the clamping device.

[0005] The first side plate and the second side plate are provided with positioning grooves corresponding to each other.

[0006] The oiling device comprises an oil tank, and the oil tank is arranged to be raised and lowered.

[0007] The drying device is an oven, and a heating device is arranged inside the oven.

[0008] Symmetrical forming mechanisms are provided on both sides of the discharging mechanism.

[0009] An oil drain tank is arranged behind the oil tank.

[0010] An oil suction device is arranged between the oil drain tank and the drying device. The oil suction device has a suction head, and the suction head moves back and forth.

[0011] The first manipulator and the second manipulator have the same structure, and both include a plurality of first suction nozzles, a first beam, and a first guide rail. The first suction nozzles are mounted on the first beam, and the first beam moves on the first guide rail.

[0012] The third robot comprises a plurality of second suction nozzles, a second beam and a second guide rail, the second suction nozzles are mounted on the second beam, the second beam is mounted on a column in a liftable manner, and the column is movably mounted on the second guide rail.

[0013] A fourth manipulator is provided at the tail end of the drying device, and the fourth manipulator transfers the material after the clamping device moves to the tail end of the drying device to the conveying mechanism.

[0014] The structure of the present invention adopts a clamping device, which can clamp multiple knives, forks and spoons at one time, and oil and dry them at the same time, which greatly improves the production efficiency. In addition, the oil immersion tank, the oil draining tank and the drying device are all arranged inside the machine body, which greatly reduces the floor space of the equipment. The present invention is used in the production line of knives, forks and spoons and has good application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention has the following accompanying drawings:

[0016] Figure 1 It is the overall structure diagram of the production line equipment of the present invention;

[0017] Figure 2 For the present invention Figure 1 The enlarged view of point A in the middle;

[0018] Figure 3 It is an assembly structure diagram of the forming machine and the blank storage structure of the present invention;

[0019] Figure 4 For the present invention Figure 2 Structural diagram of another direction;

[0020] Figure 5 This is a structural diagram of the present invention in which the forming mechanism is distributed on both sides of the discharging mechanism;

[0021] Figure 6 is a structural diagram of the clamp device of the present invention;

[0022] Figure 7 It is a structural diagram of the oiling device of the present invention;

[0023] Figure 8 It is a structural diagram of the third and fourth manipulators of the present invention;

[0024] Fig. 9 This is a structural diagram of an oil suction device arranged in the body of the present invention. DETAILED DESCRIPTION

[0025] As shown in the figure, the production equipment of paper cutlery and fork spoon of the present invention includes a blank storage mechanism 1, a forming mechanism 3 and a discharging mechanism 4, a movable first manipulator 2 is provided above the blank storage mechanism 1, wherein the blank storage mechanism 1 is for placing the cutlery and fork spoon blanks formed by punching paper with a composite layer therein, the first manipulator 2 can transfer the blanks from the blank storage mechanism 1 to the forming mechanism 3, the discharging mechanism 4 is arranged on one side of the forming mechanism 3, and a movable second manipulator 14 is provided above the discharging mechanism 4, the second manipulator 14 can transfer the formed blanks to the discharging mechanism 4. The blank storage mechanism 1 comprises a first side plate 112, a second side plate 113 and a bottom plate 111. The first side plate 112 and the second side plate 113 are provided with corresponding positioning grooves 1121 and 1131, so that when the cutlery, fork and spoon blanks are placed therein, the two ends of the cutlery, fork and spoon are respectively located in the positioning grooves 1121 and 1131 of the first side plate 112 and the second side plate 113 for limiting, and no displacement occurs when the first manipulator 2 transfers them. The bottom plate 111 can be lifted and lowered between the first side plate 112 and the second side plate 113. Specifically, the two ends of the bottom plate 111 are driven by a lifting drive device. In this embodiment, the two ends of the bottom plate 111 are respectively screwed to the first screw rods 114 on both sides. After the first screw rods 114 on both sides are driven, the driving mechanism can be a motor. The first screw rods 114 on both sides are linked by chains and sprockets. The motor only needs to drive one of the first screw rods to lift the bottom plate 111. Each time the first transfer manipulator 2 takes away the knife, fork and spoon, the bottom plate 111 rises a little bit until the knife, fork and spoon are completely taken away, then the bottom plate 111 returns to its original position and the knife, fork and spoon blanks are placed again. The molding mechanism 2 is composed of an upper mold 31 and a lower mold 32, wherein the lower mold 32 is fixed and the upper mold 31 can be raised and lowered, and a cavity 321 for placing the knife, fork and spoon is provided on the lower mold 32, and the upper mold 31 is a convex mold. After the flat knife, fork and spoon blanks are transferred to the cavity 321 of the lower mold 32 by the first manipulator 2, the first manipulator 2 is reset, and the upper mold 31 is driven downward by a hydraulic cylinder or a pneumatic cylinder, and after being fitted with the lower mold 32, the knife, fork and spoon blanks are molded to form a semi-finished product in the shape of a knife, fork and spoon. The discharging mechanism 4 is a circulating conveyor belt or conveyor chain 41, on which a plurality of levers 42 are arranged, and a receiving groove for placing the cutlery and fork is formed between every two levers 42; when the second manipulator 2 takes out the cutlery and fork formed into a semi-finished product from the receiving cavity 321 of the lower mold 32 and transfers it to the discharging mechanism 4, the cutlery and fork are placed in the corresponding receiving groove and conveyed by the conveyor belt or conveyor chain 41.A third manipulator 5 that can be moved and lifted is provided at the tail end of the discharging mechanism 4, and a clamping device 6 with a circulating transmission is provided at the tail end of the discharging mechanism 4. The third manipulator 5 transfers the knife, fork and spoon to the clamping device 6. The clamping device 6 includes a first clamping plate 61, a second clamping plate 62 and a mounting plate 66. A connecting rod 65 is fixed on the second clamping plate 62. The first clamping plate 61 is movably inserted into the connecting rod 65, and a flange 651 is provided on the connecting rod 65. The second clamping plate 62 is fixed on the mounting plate 66. Both ends of the mounting plate 66 are installed on two parallel chains 8 that are synchronously and cyclically driven. A spring 64 is sleeved between the flange 651 of the connecting rod 65 and the first clamping plate 61, and a spring 64 is provided at the clamping device 6. A retractable strut 67 is provided at the end, and the strut 67 can open the first clamping plate 61 and the second clamping plate 62; corresponding rollers 69 are provided at both ends of the first clamping plate 61 and the second clamping plate 62, and the strut 67 has an inclined surface so that the strut is arranged from thin to thick, and the strut 67 is connected to a cylinder 68. When the cylinder 68 is actuated, the thinner part of the strut 67 is inserted between the two rollers 69 of the first clamping plate 61 and the second clamping plate 62. As the push rod of the cylinder 68 is pushed in, the first clamping plate 61 and the second clamping plate 62 are opened. At this time, the knife and fork transferred by the third manipulator 5 are placed between the first clamping plate 61 and the second clamping plate 62, and then, the push rod of the cylinder 68 contracts, and the first clamping plate 61 is attached to the second clamping plate 62 under the action of the spring 64, and the knife and fork are clamped. An oiling device 7 and a drying device 11 are sequentially arranged on the transmission path of the clamping device 6, wherein the oiling device 7 has an oil groove 71, and the oil groove 71 is arranged to be raised and lowered; specifically, the oil groove 71 is screwed onto the second screw rod 72, and the second screw rod 72 is driven and connected to the motor 73. Similar to the lifting and lowering of the above-mentioned blank storage structure, the second screw rod 72 is also linked through a chain sprocket. As long as one of the second screw rods is driven by the motor 73, the oil groove 71 can be raised or lowered. Therefore, the motor generally adopts a servo motor. An oil suction device is provided between the oil drain tank 9 and the drying device 11, and the oil suction device has a suction head 15, and the suction head 15 moves back and forth; specifically, the suction head 15 is connected to a connecting rod 17, and the connecting rod 17 is eccentrically connected to a transmission wheel 18, and the suction head 15 is movably arranged on the suction head track 16. After the transmission wheel 18 is driven by a driving motor 19, the suction head 15 can move back and forth, and the suction head 15 is connected to a negative pressure fan, so that the suction head generates negative pressure; when the cutlery and fork spoon drips oil after passing through the oil drain tank 9, it pauses between the oil drain tank 9 and the drying device 11, and the suction head 15 moves back and forth, and after the varnish on the cutlery and fork spoon is adsorbed, the varnish on the cutlery and fork spoon becomes uniform. Of course, this reciprocating movement can be moved by a cylinder and a combination of a motor and a screw.The drying device 11 is an oven, and a heating device is provided in the oven. After being heated by the heating device, the cutlery, fork and spoon passing through the oven are dried. The oven has two sections. The first section is the section where the cutlery, fork and spoon enter, and is heated by the heating device. In the second section of the oven, there is not only a heating device but also a hair dryer (not shown in the figure). The hair dryer blows the heated air to make the temperature in the second section of the oven uniform, so that the cutlery, fork and spoon are heated and dried at a uniform temperature.

[0026] In order to improve production efficiency, symmetrical forming mechanisms 3 are provided on both sides of the discharging mechanism 4. Each forming mechanism 3 is equipped with a first manipulator 2 and a blank storage mechanism 1. Its second manipulator 14 can repeatedly take the formed cutlery, fork and spoon semi-finished products from the left and right forming mechanisms 3 and place them on the discharging mechanism 4.

[0027] An oil draining tank 9 is provided behind the oil tank 71, and the oil draining tank 9 is used to collect the oil dripping from the cutlery, fork and spoon after being immersed in oil, and reuse it.

[0028] The first manipulator 2 and the second manipulator 14 have the same structure, and both include a plurality of first suction nozzles 22 , a first beam 21 and a first guide rail 23 . The first suction nozzles 22 are mounted on the first beam 21 , and the first beam 21 moves on the first guide rail 23 . Among them, the first of the first beam 21 is provided with a mounting plate 27. After the first beam 21 and the mounting plate 27 are connected, they are slidably matched with the first guide rail 23 at the same time. A second motor 24 is installed on the mounting plate 2, and a gear 26 is installed on the output shaft of the second motor 24. A rack 25 meshing with the gear 26 is provided on the frame. After the second motor 24 of the first manipulator 2 works, it drives the gear 26 to make the gear 26 roll on the rack 25 to drive the first beam 21 to move back and forth, so that the first suction nozzle 22 on the first beam 21 sucks the cutlery and fork spoon blanks and puts them into the cavity 321 of the lower mold 32; the second manipulator 14 sucks and transfers the cutlery and fork spoon formed in the cavity 321 of the lower mold 32 to the discharge mechanism 4 and puts them down, wherein the second manipulator 14 shares the first guide rail 23 with the first manipulator.

[0029] The third manipulator 5 includes a plurality of second suction nozzles 51, a second crossbeam 52 and a second guide rail 53. The second suction nozzle 51 is mounted on the second crossbeam 52. The second crossbeam 52 is mounted on a column 54 via a slider 55 so as to be movable. The column 54 is mounted on the second guide rail 53 movably via a slide 56. The slider 55 can be lifted and lowered and the slide 56 can be moved by screwing the slider or the slide onto a lead screw, which can be driven by a motor.

[0030] The tail end of the drying device 11 is provided with a fourth manipulator 12, which transfers the material after the clamping device 6 is moved to the tail end of the drying device 11 to the conveying mechanism 13. The structure of the fourth manipulator 12 is the same as that of the third manipulator 5. The same retractable support rod 67 as described above is also provided at the tail end of the chain 8. When the clamping device 6 is conveyed to the tail end by the chain 8, the retractable support rod 67 also spreads the first clamping plate 61 and the second clamping plate 62 apart. After the suction nozzle of the fourth manipulator 12 sucks the finished cutlery, fork and spoon, it is transferred to the conveying mechanism 13.

[0031] The present invention works as follows: the first manipulator 2 transfers the cutlery, fork and spoon blanks in the blank storage mechanism 1 to the forming mechanism 3 for forming, the second manipulator 14 transfers the formed cutlery, fork and spoon semi-finished products to the discharging mechanism 4, the cutlery, fork and spoon semi-finished products are transferred to the tail end by the discharging mechanism 4, and the third manipulator 3 transfers the cutlery, fork and spoon semi-finished products to the clamping device 6, and the clamping device 6 transforms the horizontally placed cutlery, fork and spoon semi-finished products into a vertical state under the transmission of the chain 8, and transmits them to the inside of the machine body 10 to reach the oiling device 7 When the cutlery is removed from the oven 11, the fourth robot 12 transfers the finished cutlery to the conveying mechanism 13, which conveys the finished cutlery to the next step for packaging.

Claims

1. A production device for paper cutlery and spoon, comprising a blank storage mechanism (1), a forming mechanism (3) and a discharging mechanism (4), wherein a movable first manipulator (2) is provided above the blank storage mechanism (1), and the first manipulator (2) can transfer the blank from the blank storage mechanism (1) to the forming mechanism (3), the discharging mechanism (4) is arranged on one side of the forming mechanism (3), and a movable second manipulator (14) is provided above the discharging mechanism (4), and the second manipulator (14) can transfer the formed blank to the discharging mechanism (4), characterized in that The blank storage mechanism (1) comprises a first side plate (112), a second side plate (113) and a bottom plate (111); the bottom plate (111) can be raised and lowered between the first side plate (112) and the second side plate (113); a third manipulator (5) which can be moved and raised is provided at the tail end of the discharging mechanism (4); and a clamping device (6) with a circulating transmission is provided at the tail end of the discharging mechanism (4); the third manipulator (5) transfers the knife, fork and spoon to the clamping device (6); the clamping device (6) comprises a first clamping plate (61), a second clamping plate (62) and a mounting plate (66); a connecting rod (65) is fixed to the second clamping plate (62); the first clamping plate (61) is movably inserted into the connecting rod (65) and a flange (651) is provided on the connecting rod (65); the second clamping plate (62) is fixed to the mounting plate (66); The mounting plate (66) is mounted on two parallel chains (8) with synchronously circulating transmission at both ends of the mounting plate (66). A spring (64) is sleeved between the flange (651) of the connecting rod (65) and the first clamping plate (61). A retractable support rod (67) is provided at the clamping end of the clamping device (6). The support rod (67) can open the first clamping plate (61) and the second clamping plate (62). An oiling device (7) and a drying device (11) are sequentially provided on the transmission path of the clamping device (6). The first manipulator (2) and the second manipulator (14) have the same structure and both include a plurality of first suction nozzles (22), a first beam (21) and a first guide rail (23). The first suction nozzle (22) is mounted on the first beam (21), and the first beam (21) moves on the first guide rail (23).

2. The production equipment of paper cutlery and spoon according to claim 1, characterized in that The first side plate (112) and the second side plate (113) are provided with mutually corresponding positioning grooves (1121, 1131).

3. The production equipment of paper cutlery and spoon according to claim 1, characterized in that The oiling device (7) comprises an oil tank (71), and the oil tank (71) is arranged to be lifted.

4. The production equipment of paper cutlery and spoon according to claim 1, characterized in that The drying device (11) is an oven, and a heating device is provided inside the oven.

5. The production equipment of paper cutlery and spoon according to claim 2, characterized in that Symmetrical forming mechanisms (3) are provided on both sides of the discharging mechanism (4).

6. The production equipment of paper cutlery and spoon according to claim 3, characterized in that An oil drain tank (9) is provided behind the oil tank (71).

7. The production equipment of paper cutlery and spoon according to claim 6, characterized in that An oil suction device is provided between the oil drain tank (9) and the drying device, the oil suction device having a suction head, and the suction head moves back and forth.

8. The production equipment of paper cutlery and spoon according to claim 1, characterized in that The third robot (5) comprises a plurality of second suction nozzles (51), a second crossbeam (52) and a second guide rail (53); the second suction nozzles (51) are mounted on the second crossbeam (52); the second crossbeam (52) is mounted on a column (54) in a liftable manner; and the column (54) is movably mounted on the second guide rail (53).

9. The production equipment of paper cutlery and spoon according to claim 1, characterized in that A fourth manipulator (12) is provided at the tail end of the drying device (11), and the fourth manipulator (12) transfers the knife, fork and spoon after the clamping device (6) is moved to the tail end of the drying device (11) to the conveying mechanism (13).

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