Fresh-keeping box cover laminating machine and use method thereof

Abstract

The present invention relates to the field of film coating processing of fresh-keeping box lids. The present invention discloses a film coating machine for fresh-keeping box lids and a method for using the same. The problem to be solved by the present invention is that when the ear folding operation is performed on the fresh-keeping box lid, the ears of the fresh-keeping box lid are folded one by one, resulting in a slow ear folding efficiency, and after the ears are folded, the lock of the fresh-keeping box lid will rebound due to its own toughness, and then after the folding device completes the ear folding operation on the fresh-keeping box lid, it is unable to continuously press down the lock of the fresh-keeping box lid to fold the ears, resulting in the lock part of the fresh-keeping box lid being unable to effectively fit with the film, affecting the coating effect. The present invention is composed of an ear folding device and a film coating device. The ear folding device can simultaneously open four groups of ears on the fresh-keeping box lid without folding them one by one, effectively improving the working efficiency of the ear folding of the fresh-keeping box lid, and can provide short-term and continuous pressure on the ears of the fresh-keeping box lid, thereby preventing the ears on the fresh-keeping box lid from shrinking back due to their own toughness and being unable to effectively fit with the film.

Description

Technical Field

[0001] The invention relates to the field of film coating processing of fresh-keeping box covers, in particular to a film coating machine for fresh-keeping box covers and a use method thereof. Background Art

[0002] At present, people are accustomed to using fresh-keeping boxes to store food that needs to be kept fresh in daily life and to carry meals. Therefore, high-quality and convenient fresh-keeping boxes have become the needs of most consumers.

[0003] The fresh-keeping box cover generally includes a cover plate and a locking unit, and the junction between the locking unit and the cover plate is a connecting portion. The fresh-keeping box covers sold on the market generally have a film, and merchants usually print patterns and advertising slogans on the film.

[0004] The existing patent (publication number: CN215095934U) discloses an integrated machine for folding and laminating the fresh-keeping box lid, including a frame, a feeding conveyor, a feeding device, a laminating machine and a folding device, wherein the feeding conveyor, the feeding device and the laminating machine are sequentially installed on the frame along the feeding direction of the fresh-keeping box lid; the folding device includes a feeding table, a fixing frame, a clamp and a linear telescopic device; compared with the prior art, the folding device of the utility model is located below the feeding device, including a feeding table, a fixing frame, a clamp and a linear telescopic device, the clamp fixes the fresh-keeping box lid on the upper surface of the feeding table from the diagonal direction of the fresh-keeping box lid, the linear telescopic device repeatedly telescopes and retracts, and drives the fresh-keeping box lid on the feeding table to move up and down; since the horizontal projection of the rotating drum partially overlaps with the horizontal projection of the locking unit of the fresh-keeping box lid, and the rotating drum is located above the locking unit, the rotating drum repeatedly bends the locking unit during the up and down movement of the fresh-keeping box lid to complete automatic folding. In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art that have not been solved: when the ears of the fresh-keeping box lid are folded, the ears are folded one by one, resulting in a slow efficiency of folding the ears, and after the ears are folded, the lock of the fresh-keeping box lid will rebound due to its own toughness, and then after the folding device completes the folding operation of the ears of the fresh-keeping box lid, the lock of the fresh-keeping box lid cannot be continuously pressed down to fold the ears, resulting in the lock part of the fresh-keeping box lid being unable to effectively fit with the film, affecting the lamination effect. Summary of the invention

[0005] The purpose of the present invention is to provide a fresh-keeping box cover laminating machine and its use method to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a fresh-keeping box cover laminating machine, comprising a conveyor belt and a processing laminating table, the processing laminating table is horizontally placed on the ground, the conveyor belt is fixedly arranged on the side wall of the processing laminating table, the processing laminating table is provided with an ear folding device and a laminating device, the ear folding device is arranged on the top of the processing laminating table, and the laminating device is arranged on the top of the processing laminating table and is located below the ear folding device.

[0006] Preferably, the folding ear device includes a supporting frame, a driving electric cylinder, and a folding ear unfolding ball. The supporting frame is arranged on the top of the processing coating table, the driving electric cylinder is fixedly arranged on the supporting frame and the telescopic end of the driving electric cylinder is slidably matched with the supporting frame, and the folding ear unfolding ball is arranged at the telescopic end of the driving electric cylinder and is arranged toward the coating device.

[0007] Preferably, the folding ear expanding ball comprises two annular disks, both of which are fixedly connected with four-petal arc-shaped fan blades, the four-petal arc-shaped fan blades form a semicircle around the center of the annular disks, the four-petal arc-shaped fan blades on the two annular disks are arranged opposite to each other, and a folding ear protrusion is provided between each group of arc-shaped fan blades arranged opposite to each other, and the folding ear protrusion is hingedly connected to the two arc-shaped fan blades arranged opposite to each other.

[0008] Preferably, an elastic spring is provided between the two annular disks, and two ends of the elastic spring are respectively connected to the two annular disks. Oppositely arranged adsorption nozzles are also provided on the two annular disks.

[0009] Preferably, the coating device includes a placement rack, two clamping seats, two return springs and two clamping rods. The two clamping seats are symmetrically fixed on the outer wall of the processing coating table. The two clamping rods are respectively arranged on the two clamping seats and slidingly cooperate with the clamping seats. The placement rack is fixedly connected to one end of the two clamping rods, and the two return springs are respectively mounted on the two clamping rods and the two ends of the return springs are respectively connected to the clamping seats and the placement rack.

[0010] Preferably, the placement rack is provided with a slot of the same size as the unfolded fresh-keeping box cover, and the placement rack is provided with four groups of wedge-shaped blocks at the position of the slot, and the slot is provided with grooves that slide with the four groups of wedge-shaped blocks, and a pressure spring connected to the wedge-shaped blocks is provided in the groove, and a plurality of conveying rollers are also provided on the processing laminating table below the slot.

[0011] Preferably, two groups of clamping and flipping devices are also provided on the inner walls on both sides of the processing coating table, and the two groups of clamping and flipping devices include an electric slide, a slider, a clamping wheel, a rotating frame, a rotating rod, an adsorption plate and a plurality of suction nozzles. The electric slide is fixedly arranged on the inner wall of the processing coating table, the slider is arranged on the electric slide and slidably cooperates with the electric slide, the rotating rod is rotatably arranged on the slider, the rotating frame is connected to one end of the rotating rod, the clamping wheel is rotatably arranged on the rotating frame, a flipping groove is opened on the inner wall of the processing coating table, the clamping wheel slidably cooperates with the flipping groove, the adsorption plate is connected to the other end of the rotating rod, a telescopic electric pole is arranged in the adsorption plate to enable the adsorption plate to have a telescopic function, and a plurality of suction nozzles are arranged on the adsorption plate at equal intervals.

[0012] Preferably, an adhesive cleaning roller is provided on the processing and coating table next to the adsorption plate, and a film roll and a clamping frame are also provided on the processing and coating table. The film roll is rotatably arranged on the processing and coating table, and the clamping frame is fixedly arranged on the processing and coating table and parallel to the film roll. The placement frame is also provided with a cutter for cutting the film on the film roll.

[0013] Preferably, the method for using the fresh-keeping box cover laminating machine comprises the following steps:

[0014] S1: The operator places the fresh-keeping box cover on the conveyor belt, and the conveyor belt conveys the fresh-keeping box cover. When it is conveyed to the bottom of the two sets of clamping and flipping devices, the side of the fresh-keeping box cover that needs to be coated is adsorbed by a number of suction nozzles, and then the electric slide drives the slider to move toward the coating device. When the slider moves, it drives the rotating rod to move the rotating frame, and the clamping wheel on the rotating frame moves in the flip chute. Under the limit of the flip chute, the clamping wheel will gradually drive the rotating frame to rotate. The rotation of the rotating frame will drive the rotating rod to rotate the adsorption plate, and then when the suction nozzle on the adsorption plate drives the fresh-keeping box cover to move to the slot, When the fresh-keeping box cover is at the top, the side to be coated with the film faces downward, and then the telescopic pole on the adsorption plate retracts the adsorption plate to drop the fresh-keeping box cover into the slot on the placement rack, so that the ear folding device folds the ears of the fresh-keeping box cover on the back of the fresh-keeping box cover, thereby preventing the side of the fresh-keeping box cover to be coated from being adhered to dust and impurities, and when the adsorption plate drives the fresh-keeping box cover to move, the fresh-keeping box cover contacts the adhesion cleaning roller to clean the surface of the side of the fresh-keeping box cover to be coated, remove impurities and dust, so that the side of the fresh-keeping box cover to be coated is kept clean and tidy, and the moving and conveying work of the fresh-keeping box cover is completed;

[0015] S2: When the gripping and flipping device grips and conveys the fresh-keeping box cover on the conveyor belt, the operator pulls the film on the film roll to the clamping rack. At this time, the pulled film is horizontally located between the placement rack and the conveyor roller to facilitate the subsequent lamination of the fresh-keeping box cover. When the fresh-keeping box cover falls into the slot on the placement rack, the driving electric cylinder drives the folding ear unfolding ball to press down, and the telescopic end of the driving electric cylinder drives the annular disk to press down the fresh-keeping box cover in the slot. After the annular disk contacts the fresh-keeping box cover in the slot, the driving electric cylinder Under the continuous downward pressure of the cylinder, the four-petal arc-shaped fan blades on the two annular disks will unfold, and the unfolded arc-shaped fan blades will drive the folding ear protrusions to extend outward, and then the four groups of folding ear protrusions can extend outward to correspond to the four groups of folding ears of the fresh-keeping box cover, and the four groups of folding ears can be pushed outward at the same time to unfold, so that the folding ears are parallel to the cover surface of the fresh-keeping box cover. Through this setting, the four groups of folding ears on the fresh-keeping box cover can be opened at the same time without folding the ears one by one, which effectively improves the work efficiency of folding the ears of the fresh-keeping box cover and completes the folding work of the fresh-keeping box cover;

[0016] S3: When the electric cylinder drives the circular disk to press down to complete the folding of the fresh-keeping box cover, the suction nozzles between the two circular disks will be adsorbed together, and the elastic spring will be in a compressed state at this time. After a short time, the suction nozzles between the two circular disks will be separated under the action of the elastic spring. When the two suction nozzles are adsorbed, the four-petal arc-shaped fan blades are in an unfolded state, so that the folding ear protrusions can provide short-term and continuous pressure on the folding ears of the fresh-keeping box cover, thereby preventing the folding ears on the fresh-keeping box cover from shrinking due to their own toughness and failing to effectively fit with the film;

[0017] S4: The fresh-keeping box lid falls into the slot on the placement rack. When the ear-folding unfolding ball presses down the fresh-keeping box lid in the slot, the four groups of wedge-shaped blocks will block the fresh-keeping box lid. Under the downward pressure of the ear-folding unfolding ball, the placement rack gradually moves downward on the two holders. At this time, the arc-shaped fan plate on the ear-folding unfolding ball has not yet been unfolded. When the fresh-keeping box lid in the slot contacts the film, the cutter on the placement rack cuts the film to achieve the film cutting work. When the placement rack presses down to make the fresh-keeping box lid in the slot contact the film, the conveyor roller can make the film contact the fresh-keeping box lid in the slot to make the film and the fresh-keeping box lid effectively fit. Then, under the continuous downward pressure of the driving electric cylinder, the ear-folding unfolding ball unfolds to fold the ears of the fresh-keeping box lid. After the lid completes the ear folding work, when the suction nozzles on the two ring disks are about to separate, the ear folding expansion ball will instantly bounce up and reset under the pressure of the elastic spring. At this time, the force generated by the elastic spring when resetting the ear folding expansion ball will cause the ring disk in contact with the fresh-keeping box lid to instantly press the fresh-keeping box lid down from the slot, and the four groups of wedge-shaped blocks will retract in the groove, so that the fresh-keeping box lid can fall down from the slot, thereby realizing the unloading work of the fresh-keeping box lid. After completing the unloading work of the fresh-keeping box lid, the reset spring will raise the placement rack, so that the fresh-keeping box lid can be transported and unloaded on the conveyor roller. Through this arrangement, the fresh-keeping box lid can quickly realize the ear folding and laminating work, thereby improving the overall efficiency of the fresh-keeping box lid laminating.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, the operator places the fresh-keeping box cover on the conveyor belt, and the conveyor belt conveys the fresh-keeping box cover. When it is conveyed to the bottom of the two sets of clamping and turning devices, the side of the fresh-keeping box cover that needs to be coated is adsorbed by a plurality of suction nozzles, and then the electric slide table drives the slider to move in the direction of the coating device. When the slider moves, it drives the rotating rod to move the rotating frame, and the clamping wheel on the rotating frame moves in the turning chute. Under the limit of the turning chute, the clamping wheel will gradually drive the rotating frame to rotate, and the rotation of the rotating frame will drive the rotating rod to rotate the adsorption plate, and then when the suction nozzle on the adsorption plate drives the fresh-keeping box cover to move to the slot When the suction plate drives the fresh-keeping box cover to move, the fresh-keeping box cover contacts with the adhesion cleaning roller, which can clean the surface of the side of the fresh-keeping box cover that needs to be coated, remove impurities and other dust, so as to keep the side of the fresh-keeping box cover that needs to be coated clean and tidy, thereby completing the moving and conveying work of the fresh-keeping box cover.

[0020] In the present invention, when the gripping and flipping device grips and conveys the fresh-keeping box cover on the conveyor belt, the operator pulls the film on the film roll to the clamping rack. At this time, the pulled film is horizontally located between the placement rack and the conveying roller, which is convenient for subsequent coating of the fresh-keeping box cover. When the fresh-keeping box cover falls into the slot on the placement rack, the driving electric cylinder drives the folding ear expansion ball to press down, and the telescopic end of the driving electric cylinder drives the annular disk to press down the fresh-keeping box cover in the slot. After the annular disk contacts the fresh-keeping box cover in the slot, the driving electric cylinder Under the continuous downward pressure of the electric cylinder, the four-petal arc-shaped fan blades on the two circular ring disks will unfold, and the unfolded arc-shaped fan blades will drive the folding ear protrusions to extend outward, and then the four groups of folding ear protrusions can extend outward to correspond to the four groups of folding ears of the fresh-keeping box lid, and the four groups of folding ears can be pushed outward at the same time to unfold, so that the folding ears are parallel to the cover surface of the fresh-keeping box lid. Through this setting, the four groups of folding ears on the fresh-keeping box lid can be opened at the same time without the need to fold the ears one by one, which effectively improves the working efficiency of the folding ears of the fresh-keeping box lid and completes the folding work of the fresh-keeping box lid.

[0021] In the present invention, when the electric cylinder is driven to push the circular ring disk downward to complete the ear folding work of the fresh-keeping box cover, the suction nozzles between the two circular ring disks will be adsorbed together, and the elastic spring is in a compressed state at this time. After a short time, the suction nozzles between the two circular ring disks will be separated under the action of the elastic spring. When the two suction nozzles are adsorbed, the four-petal arc-shaped fan blades are in an unfolded state, so that the ear folding protrusions can provide short-term and continuous pressure to the folding ears of the fresh-keeping box cover, thereby preventing the folding ears on the fresh-keeping box cover from shrinking back due to their own toughness and being unable to effectively fit with the film.

[0022] In the present invention, the fresh-keeping box cover falls into the slot on the placement rack, and when the folding ear unfolding ball presses down the fresh-keeping box cover in the slot, the four groups of wedge-shaped blocks will block the fresh-keeping box cover, and under the downward pressure of the folding ear unfolding ball, the placement rack gradually moves downward on the two holders, at this time, the arc-shaped fan plate on the folding ear unfolding ball has not yet been unfolded, and when the fresh-keeping box cover in the slot contacts the film, the cutter on the placement rack cuts the film to achieve the film cutting work, and when the placement rack presses down to make the fresh-keeping box cover in the slot contact the film, the conveying roller can make the film contact with the fresh-keeping box cover in the slot so that the film and the fresh-keeping box cover are effectively fitted, and then under the continuous downward pressure of the driving electric cylinder, the folding ear unfolding ball unfolds to fold the ears of the fresh-keeping box cover, and the fresh-keeping box cover is kept in a closed position. After the box cover completes the ear folding work, when the suction nozzles on the two ring disks are about to separate, the ear folding expansion ball will instantly bounce up and reset under the pressure of the elastic spring. At this time, the force generated by the elastic spring when resetting the ear folding expansion ball will cause the ring disk in contact with the fresh-keeping box cover to instantly press the fresh-keeping box cover down from the slot, and the four groups of wedge-shaped blocks will retract in the groove, so that the fresh-keeping box cover can fall down from the slot, thereby realizing the unloading work of the fresh-keeping box cover. After completing the unloading work of the fresh-keeping box cover, the reset spring will raise the placement rack, so that the fresh-keeping box cover can be transported and unloaded on the conveyor roller. Through this arrangement, the fresh-keeping box cover can quickly realize the ear folding and laminating work, thereby improving the overall efficiency of the fresh-keeping box cover laminating. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the ear folding device of the present invention;

[0026] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the ear folding device of the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the film coating device of the present invention;

[0028] Figure 6 It is a partial three-dimensional structural cross-sectional view of the film coating device of the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the clamping and flipping device of the present invention;

[0030] Figure 8 It is a partial three-dimensional structural sectional view of the clamping and flipping device of the present invention;

[0031] Fig. 9 A partial three-dimensional structural sectional view of the present invention.

[0032] In the figure: 1. conveyor belt; 2. processing laminating table; 21. flip slide; 3. folding ear device; 31. load-bearing frame; 32. driving electric cylinder; 4. folding ear unfolding ball; 41. annular disk; 42. arc-shaped fan blade; 43. folding ear protrusion; 44. elastic spring; 45. suction nozzle; 5. laminating device; 51. placement rack; 511. slotting; 512. wedge-shaped card block; 513. groove; 514. pressure spring; 515. cutter; 52. card seat; 53. reset spring; 54. card rod; 55. conveying roller; 6. clamping and flipping device; 61. electric slide; 62. slider; 63. card wheel; 64. rotating frame; 65. rotating rod; 66. suction plate; 67. telescopic electric pole; 68. suction nozzle; 7. adhesion cleaning roller; 8. film roll; 81. card rack. DETAILED DESCRIPTION

[0033] 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 9 The present invention provides a technical solution: a fresh-keeping box cover laminating machine, comprising a conveyor belt 1 and a processing laminating table 2, the processing laminating table 2 is horizontally placed on the ground, the conveyor belt 1 is fixedly arranged on the side wall of the processing laminating table 2, the processing laminating table 2 is provided with an ear folding device 3 and a laminating device 5, the ear folding device 3 is arranged on the top of the processing laminating table 2, and the laminating device 5 is arranged on the top of the processing laminating table 2 and is located below the ear folding device 3.

[0035] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the ear folding device 3 includes a carrier frame 31, a driving electric cylinder 32, and an ear folding expansion ball 4. The carrier frame 31 is arranged on the top of the processing film coating table 2, the driving electric cylinder 32 is fixedly arranged on the carrier frame 31, and the telescopic end of the driving electric cylinder 32 is slidably matched with the carrier frame 31, and the ear folding expansion ball 4 is arranged at the telescopic end of the driving electric cylinder 32 and is arranged toward the film coating device 5;

[0036] The folding ear expansion ball 4 includes two annular disks 41, and the two annular disks 41 are fixedly connected with four-petal arc-shaped fan blades 42, and the four-petal arc-shaped fan blades 42 form a semicircle around the center of the annular disk 41. The four-petal arc-shaped fan blades 42 on the two annular disks 41 are arranged opposite to each other, and a folding ear protrusion 43 is provided between each group of arc-shaped fan blades 42 arranged opposite to each other, and the folding ear protrusion 43 is hingedly connected to the two arc-shaped fan blades 42 arranged opposite to each other;

[0037] When the fresh-keeping box cover falls into the slot 511 on the placement rack 51, the driving electric cylinder 32 drives the folding ear unfolding ball 4 to press down, and the telescopic end of the driving electric cylinder 32 drives the annular disk 41 to press down the fresh-keeping box cover in the slot 511. After the annular disk 41 contacts the fresh-keeping box cover in the slot 511, under the continuous downward pressure of the driving electric cylinder 32, the four-petal arc-shaped fan blades 42 on the two annular disks 41 will unfold, and the unfolded arc-shaped fan blades 42 will drive the folding ear protrusions 43 to extend outward, and then the four groups of folding ear protrusions 43 can extend outward to correspond to the four groups of folding ears of the fresh-keeping box cover, and the four groups of folding ears can be pushed outward at the same time to expand, so that the folding ears are parallel to the cover surface of the fresh-keeping box cover. Through this arrangement, the four groups of folding ears on the fresh-keeping box cover can be opened at the same time without the need to fold the ears one by one, which effectively improves the working efficiency of the folding ears of the fresh-keeping box cover and completes the folding ear work of the fresh-keeping box cover.

[0038] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, an elastic spring 44 is provided between the two annular disks 41, and the two ends of the elastic spring 44 are respectively connected to the two annular disks 41, and the two annular disks 41 are also provided with relatively arranged suction nozzles 45; when the driving electric cylinder 32 drives the annular disk 41 to press down to complete the ear folding work of the fresh-keeping box cover, the suction nozzles 45 between the two annular disks 41 will be adsorbed together, and the elastic spring 44 is in a compressed state at this time, and after a short time, the suction nozzles 45 between the two annular disks 41 will be separated under the action of the elastic spring 44, and when the two suction nozzles 45 are adsorbed, the four-petal arc-shaped fan blades 42 are in an expanded state, so that the ear folding protrusions 43 can provide short-term and continuous pressure on the ears of the fresh-keeping box cover, thereby preventing the ears on the fresh-keeping box cover from shrinking back due to their own toughness and being unable to effectively fit with the film.

[0039] In this embodiment, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Fig. 9As shown, the film coating device 5 includes a placement rack 51, two clamping seats 52, two return springs 53 and two clamping rods 54. The two clamping seats 52 are symmetrically fixed on the outer wall of the processing film coating table 2. The two clamping rods 54 are respectively arranged on the two clamping seats 52 and slide with the clamping seats 52. The placement rack 51 is fixedly connected to one end of the two clamping rods 54. The two return springs 53 are respectively sleeved on the two clamping rods 54 and the two ends of the return spring 53 are respectively connected to the clamping seat 52 and the placement rack 51; the fresh-keeping box cover falls on the placement rack When the folding ear unfolding ball 4 presses down the fresh-keeping box cover in the slot 511, the four groups of wedge-shaped blocks 512 will block the fresh-keeping box cover, and under the downward pressure of the folding ear unfolding ball 4, the placement rack 51 gradually moves downward on the two blocks 52. At this time, the arc-shaped fan plate on the folding ear unfolding ball 4 has not yet been unfolded. When the fresh-keeping box cover in the slot 511 contacts the film, the cutter 515 on the placement rack 51 cuts the film to achieve the film cutting work, and the placement rack 51 presses down to make the fresh-keeping box cover in the slot 511 When the fresh-keeping box cover contacts the film, the conveying roller 55 can make the film contact with the fresh-keeping box cover in the slot 511 so that the film and the fresh-keeping box cover are effectively fitted, and then the ear-folding and unfolding balls 4 are unfolded under the continuous downward pressure of the driving electric cylinder 32 to fold the ears of the fresh-keeping box cover. After the fresh-keeping box cover completes the ear-folding work, when the suction nozzles 45 on the two circular disks 41 are about to separate, under the pressure of the elastic spring 44, the ear-folding and unfolding balls 4 will instantly bounce back and reset, and at this time, the force generated by the elastic spring 44 when resetting the ear-folding and unfolding balls 4 will make the fresh-keeping box cover close to the ear-folding and unfolding balls 4. The circular disk 41 that contacts the fresh-keeping box cover instantly presses the fresh-keeping box cover down from the slot 511, and the four groups of wedge-shaped blocks 512 will retract in the groove 513, so that the fresh-keeping box cover can fall downward from the slot 511, thereby realizing the unloading work of the fresh-keeping box cover. After the unloading work of the fresh-keeping box cover is completed, the reset spring 53 will raise the placement rack 51, so that the fresh-keeping box cover can be transported and unloaded on the conveying roller 55. Through this arrangement, the fresh-keeping box cover can quickly realize the folding ear laminating and bonding work, thereby improving the overall work efficiency of the fresh-keeping box cover laminating.

[0040] In this embodiment, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Fig. 9As shown, the placement rack 51 is provided with a slot 511 of the same size as the unfolded fresh-keeping box cover, and the placement rack 51 is provided with four groups of wedge-shaped blocks 512 at the position of the slot 511, and the slot 511 is provided with a groove 513 that slidably cooperates with the four groups of wedge-shaped blocks 512, and a pressure spring 514 connected to the wedge-shaped blocks 512 is provided in the groove 513, and a plurality of conveying rollers 55 are also provided below the slot 511 on the processing laminating table 2; the arrangement of the four groups of wedge-shaped blocks 512 enables the four groups of wedge-shaped blocks 512 to block the fresh-keeping box cover when the fresh-keeping box cover falls into the slot 511, and when the pressure applied to the fresh-keeping box cover is large enough, the four groups of wedge-shaped blocks 512 will retract in the groove 513 to make the fresh-keeping box cover fall from the slot 511.

[0041] In this embodiment, Figure 1 , Figure 2 , Figure 7 , Figure 8 and Fig. 9As shown, two groups of gripping and flipping devices 6 are also provided on the inner walls of both sides of the processing and coating table 2. The two groups of gripping and flipping devices 6 include an electric slide 61, a slider 62, a clamping wheel 63, a rotating frame 64, a rotating rod 65, an adsorption plate 66 and a plurality of suction nozzles 68. The electric slide 61 is fixedly arranged on the inner wall of the processing and coating table 2, the slider 62 is arranged on the electric slide 61 and slidably cooperates with the electric slide 61, the rotating rod 65 is rotatably arranged on the slider 62, the rotating frame 64 is connected to one end of the rotating rod 65, and the clamping wheel 63 rotates The rotating frame 64 is arranged, and a turnover chute 21 is provided on the inner wall of the processing film-coating table 2. The clamping wheel 63 is slidably matched with the turnover chute 21. The adsorption plate 66 is connected to the other end of the rotating rod 65. A telescopic pole 67 is provided in the adsorption plate 66 to enable the adsorption plate 66 to have a telescopic function. A plurality of suction nozzles 68 are arranged on the adsorption plate 66 at equal intervals. The operator places the fresh-keeping box cover on the conveyor belt 1, and the conveyor belt 1 conveys the fresh-keeping box cover. When it is conveyed to the bottom of the two sets of clamping and flipping devices 6, the side of the fresh-keeping box cover to be coated is covered by a plurality of suction nozzles 68. The suction nozzle 68 is sucked, and then the electric slide 61 drives the slider 62 to move in the direction of the film coating device 5. When the slider 62 moves, it drives the rotating rod 65 to move the rotating frame 64. The clamping wheel 63 on the rotating frame 64 moves in the flip chute 21. Under the limit of the flip chute 21, the clamping wheel 63 will gradually drive the rotating frame 64 to rotate. The rotation of the rotating frame 64 will drive the rotating rod 65 to rotate the suction plate 66. Then, when the suction nozzle 68 on the suction plate 66 drives the fresh-keeping box cover to move to the top of the slot 511, the side of the fresh-keeping box cover to be coated is set downward, and then the suction nozzle 68 on the suction plate 66 drives the fresh-keeping box cover to move to the top of the slot 511. The telescopic pole 67 on the attached plate 66 retracts the adsorption plate 66 to drop the fresh-keeping box cover into the slot 511 on the placement rack 51, so that the folding ear device 3 folds the ears of the fresh-keeping box cover on the back side of the fresh-keeping box cover, thereby preventing the side of the fresh-keeping box cover that needs to be coated from sticking to dust and impurities, and when the adsorption plate 66 drives the fresh-keeping box cover to move, the fresh-keeping box cover contacts the adhesion cleaning roller 7 to clean the surface of the side of the fresh-keeping box cover that needs to be coated, remove impurities and dust, thereby keeping the side of the fresh-keeping box cover that needs to be coated clean and tidy, completing the moving and conveying work of the fresh-keeping box cover.

[0042] In this embodiment, Figure 1 and Fig. 9As shown, an adhesive cleaning roller 7 is provided on the processing and laminating table 2 beside the adsorption plate 66, and a film roll 8 and a clamping frame 81 are also provided on the processing and laminating table 2. The film roll 8 is rotatably set on the processing and laminating table 2, and the clamping frame 81 is fixedly set on the processing and laminating table 2 and is parallel to the film roll 8. The placement frame 51 is also provided with a cutter 515 for cutting the film on the film roll 8; when the clamping and flipping device 6 clamps and conveys the fresh-keeping box cover on the conveyor belt 1, the operator pulls the film on the film roll 8 to the clamping frame 81. At this time, the pulled film is horizontally located between the placement frame 51 and the conveying roller 55, and then when the fresh-keeping box cover is folded from the slot 511 on the placement frame 51, it can be quickly fitted with the film to achieve lamination, thereby improving the overall processing efficiency of the fresh-keeping box cover lamination.

[0043] The use method and advantages of the present invention: The use method of the fresh-keeping box cover laminating machine, the working process is as follows:

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown:

[0045] S1: The operator places the fresh-keeping box cover on the conveyor belt 1, and the conveyor belt 1 conveys the fresh-keeping box cover. When it is conveyed to the bottom of the two sets of clamping and turning devices 6, the side of the fresh-keeping box cover that needs to be coated is sucked by a plurality of suction nozzles 68, and then the electric slide 61 drives the slider 62 to move in the direction of the coating device 5. When the slider 62 moves, it drives the rotating rod 65 to move the rotating frame 64, and the clamping wheel 63 on the rotating frame 64 moves in the turning chute 21. Under the limit of the turning chute 21, the clamping wheel 63 will gradually drive the rotating frame 64 to rotate, and the rotation of the rotating frame 64 will drive the rotating rod 65 to rotate the adsorption plate 66, and then when the suction nozzle 68 on the adsorption plate 66 brings When the fresh-keeping box cover is moved to the top of the slot 511, the side of the fresh-keeping box cover that needs to be coated is set downward, and then the telescopic pole 67 on the adsorption plate 66 retracts the adsorption plate 66 to drop the fresh-keeping box cover into the slot 511 on the placement rack 51, so that the folding ear device 3 folds the ears of the fresh-keeping box cover on the back of the fresh-keeping box cover, thereby preventing the side of the fresh-keeping box cover that needs to be coated from sticking to dust and impurities, and when the adsorption plate 66 drives the fresh-keeping box cover to move, the fresh-keeping box cover contacts the adhesion cleaning roller 7 to clean the surface of the side of the fresh-keeping box cover that needs to be coated, remove impurities and dust, so that the side of the fresh-keeping box cover that needs to be coated is kept clean and tidy, and the moving and conveying work of the fresh-keeping box cover is completed;

[0046] S2: When the gripping and flipping device 6 grips and conveys the fresh-keeping box cover on the conveyor belt 1, the operator pulls the film on the film roll 8 to the clamping frame 81. At this time, the pulled film is horizontally located between the placement frame 51 and the conveying roller 55 to facilitate the subsequent coating of the fresh-keeping box cover. When the fresh-keeping box cover falls into the slot 511 on the placement frame 51, the driving electric cylinder 32 drives the folding ear unfolding ball 4 to press down, and the telescopic end of the driving electric cylinder 32 drives the annular disk 41 to press down the fresh-keeping box cover in the slot 511. After the contact, under the continuous downward pressure of the driving electric cylinder 32, the four-petal arc-shaped fan blades 42 on the two annular disks 41 will unfold, and the unfolded arc-shaped fan blades 42 will drive the folding ear protrusions 43 to extend outward, and then the four groups of folding ear protrusions 43 can extend outward to correspond to the four groups of folding ears of the fresh-keeping box cover, and the four groups of folding ears can be pushed outward at the same time to unfold, so that the folding ears are parallel to the cover surface of the fresh-keeping box cover. Through this setting, the four groups of folding ears on the fresh-keeping box cover can be opened at the same time without folding the ears one by one, which effectively improves the working efficiency of the folding ears of the fresh-keeping box cover and completes the folding work of the fresh-keeping box cover;

[0047] S3: When the driving electric cylinder 32 drives the annular disk 41 to press down to complete the ear folding work of the fresh-keeping box cover, the suction nozzles 45 between the two annular disks 41 will be sucked together, and the elastic spring 44 is in a compressed state at this time. After a short time, the suction nozzles 45 between the two annular disks 41 will be separated under the action of the elastic spring 44. When the two suction nozzles 45 are sucked, the four-petal arc-shaped fan blades 42 are in an unfolded state, so that the ear folding protrusions 43 can provide short-term and continuous pressure on the ears of the fresh-keeping box cover, thereby preventing the ears on the fresh-keeping box cover from shrinking back due to their own toughness and failing to effectively fit with the film;

[0048] S4: The fresh-keeping box cover falls into the slot 511 on the placement rack 51. When the folding ear unfolding ball 4 presses down the fresh-keeping box cover in the slot 511, the four groups of wedge-shaped blocks 512 will block the fresh-keeping box cover, and under the downward pressure of the folding ear unfolding ball 4, the placement rack 51 gradually moves downward on the two holders 52. At this time, the arc-shaped fan plate on the folding ear unfolding ball 4 has not yet been unfolded. When the fresh-keeping box cover in the slot 511 contacts the film, the cutter 515 on the placement rack 51 cuts the film to achieve the film cutting work. When the placement rack 51 is pressed down to make the fresh-keeping box cover in the slot 511 contact the film, the conveying roller 55 can make the film contact the fresh-keeping box cover in the slot 511 so that the film and the fresh-keeping box cover are effectively fitted. Then, under the continuous downward pressure of the driving electric cylinder 32, the folding ear unfolding ball 4 unfolds the fresh-keeping box cover to fold the ears. After the fresh-keeping box cover completes the ear folding work, when the suction nozzles 45 on the two circular ring disks 41 are about to separate, the ear folding expansion ball 4 will instantly bounce up and reset under the pressure of the elastic spring 44. At this time, the force generated by the elastic spring 44 when resetting the ear folding expansion ball 4 will cause the circular ring disk 41 in contact with the fresh-keeping box cover to instantly press the fresh-keeping box cover down from the slot 511, and the four groups of wedge-shaped blocks 512 will retract in the groove 513, so that the fresh-keeping box cover can fall downward from the slot 511, realizing the unloading work of the fresh-keeping box cover. After completing the unloading work of the fresh-keeping box cover, the reset spring 53 will raise the placement rack 51, so that the fresh-keeping box cover can be transported and unloaded on the conveying roller 55. Through this arrangement, the fresh-keeping box cover can quickly realize the ear folding laminating and bonding work, thereby improving the overall work efficiency of the fresh-keeping box cover laminating.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fresh-keeping box cover laminating machine, comprising a conveyor belt (1) and a laminating processing platform (2), wherein the laminating processing platform (2) is horizontally placed on the ground, and the conveyor belt (1) is fixedly arranged on the side wall of the laminating processing platform (2). Features: The processing and laminating platform (2) is provided with an ear folding device (3) and a laminating device (5), wherein the ear folding device (3) is arranged on the top of the processing and laminating platform (2), and the laminating device (5) is arranged on the top of the processing and laminating platform (2) and is located below the ear folding device (3); The ear folding device (3) comprises a carrier frame (31), a driving electric cylinder (32), and an ear folding unfolding ball (4); the carrier frame (31) is arranged on the top of the processing film coating table (2); the driving electric cylinder (32) is fixedly arranged on the carrier frame (31) and the telescopic end of the driving electric cylinder (32) is slidably matched with the carrier frame (31); the ear folding unfolding ball (4) is arranged at the telescopic end of the driving electric cylinder (32) and is arranged toward the film coating device (5); The folding ear expansion ball (4) comprises two annular disks (41), and the two annular disks (41) are fixedly connected with four-petal arc-shaped fan blades (42), and the four-petal arc-shaped fan blades (42) form a semicircle around the center of the annular disk (41). The four-petal arc-shaped fan blades (42) on the two annular disks (41) are arranged opposite to each other, and an ear folding protrusion (43) is provided between each group of the arc-shaped fan blades (42) arranged opposite to each other, and the ear folding protrusion (43) is hingedly connected to the two arc-shaped fan blades (42) arranged opposite to each other. An elastic spring (44) is also provided between the two annular disks (41).

2. A fresh-keeping box cover laminating machine according to claim 1, Features: The two ends of the elastic spring (44) are respectively connected to two annular disks (41), and the two annular disks (41) are also provided with adsorption nozzles (45) arranged opposite to each other.

3. A fresh-keeping box cover laminating machine according to claim 1, Features: The coating device (5) comprises a placement rack (51), two clamping seats (52), two return springs (53) and two clamping rods (54); the two clamping seats (52) are symmetrically fixedly arranged on the outer side wall of the processing coating table (2); the two clamping rods (54) are respectively arranged on the two clamping seats (52) and slidably cooperate with the clamping seats (52); the placement rack (51) is fixedly connected to one end of the two clamping rods (54); the two return springs (53) are respectively sleeved on the two clamping rods (54) and the two ends of the return springs (53) are respectively connected to the clamping seats (52) and the placement rack (51).

4. A fresh-keeping box cover laminating machine according to claim 3, Features: The placement rack (51) is provided with a slot (511) of the same size as the unfolded fresh-keeping box cover; four groups of wedge-shaped blocks (512) are provided on the placement rack (51) at the position of the slot (511); the slot (511) is provided with a groove (513) that slidably cooperates with the four groups of wedge-shaped blocks (512); and a pressure spring (514) connected to the wedge-shaped blocks (512) is provided in the groove (513); and a plurality of conveying rollers (55) are also provided on the processing laminating table (2) below the slot (511).

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