Folding box closing device

Abstract

The application provides a folding and covering device, which is suitable for folding and covering a packaging box from a flat unfolded state to a three-dimensional open-covering state and then to a three-dimensional covering state. The folding and covering device comprises a base plate, a folding device and a covering device. The folding device and the covering device are arranged on the base plate. The folding device folds and forms the packaging box from the flat unfolded state to the three-dimensional open-covering state. The covering device covers the packaging box from the three-dimensional open-covering state to the three-dimensional covering state. The folding and covering device has the advantages of being capable of completing the folding and covering operations in the same station, simple structure, low manufacturing cost, small floor area, fast operation beat speed and high efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging machinery, in particular to a folding and covering device. BACKGROUND

[0002] With the continuous rapid development of industrial production, a large number of packaging boxes are often needed in industrial production to package the products produced, to facilitate operation and protect the products. The application range of packaging boxes is becoming more and more extensive, and it has become an important role in the packaging industry.

[0003] In the prior art, the flatly unfolded corrugated paperboard is generally folded by a folding device to form an open-cover packaging box, and after the product is put in, the covering operation of the packaging box is performed. However, the folding operation of the folding device to form the open-cover packaging box and the covering operation of the packaging box need to be completed separately in different workstations, which makes the device structure too complex, the manufacturing cost is high, the floor area is large, and the operation beat speed is slow and the efficiency is low, which is difficult to match the high-speed production line.

[0004] Therefore, there is an urgent need for a folding and covering device to overcome the above problems. SUMMARY

[0005] The purpose of the embodiment of the present application is to provide a folding and covering device which has the advantages of being able to complete folding and covering operations in the same workstation, simple structure, low manufacturing cost, small floor area, fast operation beat speed and high efficiency.

[0006] To achieve the above purpose, the first aspect of the embodiment of the present application provides a folding and covering device suitable for folding and forming a packaging box from a flatly unfolded state to a three-dimensional open-cover state and then covering it to a three-dimensional covered state, wherein the folding and covering device comprises a base plate, a folding device and a covering device, the folding device and the covering device are arranged on the base plate, the folding device folds and forms the packaging box from the flatly unfolded state to the three-dimensional open-cover state; the covering device covers the packaging box from the three-dimensional open-cover state to the three-dimensional covered state.

[0007] Optionally, the folding device comprises a box bottom bearing and adsorbing mechanism, a left limiting guide plate, a right limiting guide plate, a left lower pad folding mechanism and a right lower pad folding mechanism,

[0008] The box bottom bearing adsorption mechanism comprises: a bearing plate and a plurality of first suction cups, the bearing plate is integrally formed or fixedly connected to the base plate, the first suction cups are fixed on the bearing plate, and the first suction cups are exposed upward on the bearing plate; the left limiting guide plate and the right limiting guide plate are fixed vertically in front and back directions on the base plate, the left limiting guide plate is spaced apart on the left side of the right limiting guide plate, and the bearing plate is located between the bottom of the left limiting guide plate and the bottom of the right limiting guide plate in the left-right direction;

[0009] The left lower pad surface folding mechanism comprises: a first linear driver, a first guide baffle and a first fixed baffle, the first guide baffle moves on the back side of the left limiting guide plate in the left-right direction, the first guide baffle is arranged vertically in the left-right direction, the first linear driver is fixed on the base plate in the left-right direction, and the first guide baffle is fixedly connected to the driving end of the first linear driver; the first fixed baffle is fixed vertically on the base plate in the left-right direction, and the first fixed baffle is located directly below the first guide baffle;

[0010] The right lower pad surface folding mechanism comprises: a second linear driver, a second guide baffle and a second fixed baffle, the second guide baffle moves on the back side of the right limiting guide plate in the left-right direction, the second guide baffle is arranged vertically in the left-right direction, the second linear driver is fixed on the base plate in the left-right direction, and the second guide baffle is fixedly connected to the driving end of the second linear driver; the second fixed baffle is fixed vertically on the base plate in the left-right direction, and the second fixed baffle is located directly below the second guide baffle.

[0011] Optionally, the folding device further comprises: a left box surface folding mechanism and a right box surface folding mechanism,

[0012] The left box surface folding mechanism comprises: a third linear driver and a third guide baffle, the third linear driver is fixed vertically on the base plate, the third guide baffle is fixedly connected to the driving end of the third linear driver, the third guide baffle is arranged vertically in the front-back direction, and the third guide baffle is located on the back side of the left limiting guide plate;

[0013] The right box surface folding mechanism comprises: a fourth linear driver and a fourth guide baffle, the fourth linear driver is fixed vertically on the base plate, the fourth guide baffle is fixedly connected to the driving end of the fourth linear driver, and the fourth guide baffle is arranged vertically in the front-back direction, and the fourth guide baffle is located on the back side of the right limiting guide plate.

[0014] Optionally, the folding device further comprises: a left front side ear folding mechanism and a right front side ear folding mechanism,

[0015] The left front ear folding mechanism comprises a fifth linear driver and a fifth guide baffle, the fifth linear driver is fixed on the base plate along the left-right direction, the fifth guide baffle is fixedly connected to the driving end of the fifth linear driver, the fifth guide baffle is vertically arranged along the front-rear direction, and the fifth guide baffle is located on the front side of the left limiting guide plate.

[0016] The right front ear folding mechanism comprises a sixth linear driver and a sixth guide baffle, the sixth linear driver is fixed on the base plate along the left-right direction, the sixth guide baffle is fixedly connected to the driving end of the sixth linear driver, the sixth guide baffle is vertically arranged along the front-rear direction, and the sixth guide baffle is located on the front side of the right limiting guide plate.

[0017] Optionally, the folding device further comprises a rear box face folding mechanism, the rear box face folding mechanism comprises a seventh linear driver and a seventh guide baffle, the seventh linear driver is vertically fixed on the base plate, the seventh guide baffle is vertically fixed on the driving end of the seventh linear driver, and the seventh guide baffle is located on the rear side of the bearing plate.

[0018] Optionally, the folding device further comprises a front box face folding mechanism, the front box face folding mechanism comprises a first rotary driver, a first rotating baffle and a plurality of second suction cups, the first rotary driver is fixed on the base plate, the first rotating baffle is pivoted on the base plate about a first axis line, the first axis line is arranged along the left-right direction, the first rotating baffle is drivingly connected to the output end of the first rotary driver, and the first axis line is located on the front side of the bearing plate; the second suction cups are fixed on the first rotating baffle, and the second suction cups are exposed upward on the first rotating baffle.

[0019] Optionally, the folding device further comprises a left inner tongue folding mechanism and a right inner tongue folding mechanism,

[0020] The left inner tongue folding mechanism comprises a second rotary driver, a first rotary mounting base, an eighth linear driver, a second rotary baffle and a first pressing plate. The second rotary driver is fixed on the base plate. The first rotary mounting base is pivotally connected to the base plate about a fifth axis line. The fifth axis line is arranged along the front-rear direction and above the left side edge of the bearing plate. The first rotary mounting base is drivingly connected to the output end of the second rotary driver. The second rotary baffle is vertically fixed on the first rotary mounting base. The eighth linear driver is fixed on the first rotary mounting base along a direction perpendicular to the fifth axis line. The first pressing plate is fixedly connected to the driving end of the eighth linear driver. The first pressing plate is perpendicular to the eighth linear driver. The top of the first pressing plate is bent to form a first pressing protrusion. The first pressing protrusion can extend rightward or retract into the second rotary baffle.

[0021] The right inner tongue folding mechanism comprises a third rotary driver, a second rotary mounting base, a ninth linear driver, a third rotary baffle and a second pressing plate. The third rotary driver is fixed on the base plate. The second rotary mounting base is pivotally connected to the base plate about a sixth axis line. The sixth axis line is arranged along the front-rear direction and above the right side edge of the bearing plate. The second rotary mounting base is drivingly connected to the output end of the third rotary driver. The third rotary baffle is vertically fixed on the second rotary mounting base. The ninth linear driver is fixed on the second rotary mounting base along a direction perpendicular to the sixth axis line. The second pressing plate is fixedly connected to the driving end of the ninth linear driver. The second pressing plate is perpendicular to the ninth linear driver. The top of the second pressing plate is bent to form a second pressing protrusion. The second pressing protrusion can extend leftward or retract into the third rotary baffle.

[0022] Optionally, the folding device further comprises an upper flat tongue folding mechanism. The upper flat tongue folding mechanism comprises a tenth linear driver, a rotary seat and a fourth rotary baffle. The tail end of the tenth linear driver is pivotally connected to the first rotary baffle about a second axis line. The rotary seat sequentially has an upper connecting end, a pivot portion and a lower connecting end. The pivot portion is pivotally connected to the first rotary baffle about a third axis line. The driving end of the tenth linear driver is pivotally connected to the lower connecting end about a fourth axis line. The second axis line, the third axis line and the fourth axis line are arranged along the left-right direction. The fourth rotary baffle is fixedly connected to the upper connecting end and arranged along the left-right direction.

[0023] Optionally, the lid closing device comprises a lid folding mechanism, the lid folding mechanism comprises a fourth rotary driver, a fifth rotary baffle and a plurality of third suction cups, the fourth rotary driver is fixed on the seventh guide baffle, the fifth rotary baffle is pivoted on the seventh guide baffle about a seventh axis line, the seventh axis line is arranged along the left-right direction, the fifth rotary baffle is drivingly connected to the output end of the fourth rotary driver, and the seventh axis line is located on the top side of the seventh guide baffle; the third suction cups are fixed on the fifth rotary baffle, and the third suction cups are exposed upward on the fifth rotary baffle.

[0024] Optionally, the lid closing device further comprises an inner plug ear folding mechanism and a plug pressing insertion mechanism, the inner plug ear folding mechanism comprises a tenth linear driver, a connecting seat and an eighth guide baffle, the tenth linear driver is fixed on the first rotary baffle and perpendicular to the first rotary baffle, the connecting seat is fixedly connected to the driving end of the tenth linear driver, and the eighth guide baffle is fixedly connected to the connecting seat and arranged along the left-right direction.

[0025] The plug pressing insertion mechanism comprises a twelfth linear driver and a ninth guide baffle, the twelfth linear driver is fixed on the connecting seat and parallel to the tenth linear driver, the ninth guide baffle is fixedly connected to the driving end of the twelfth linear driver and arranged along the left-right direction.

[0026] Since the folding device and the lid closing device of the folding box and lid closing device are arranged on the base plate, the folding device folds and forms the packaging box from the planar unfolded state to the three-dimensional open lid state, and the lid closing device closes the packaging box from the three-dimensional open lid state to the three-dimensional closed lid state. Therefore, only the folding device is needed to fold and form the packaging box from the planar unfolded state to the three-dimensional open lid state at the same station on the base plate, and then the lid closing device is used to close the packaging box from the three-dimensional open lid state to the three-dimensional closed lid state, so that the folding box operation and the lid closing operation can be completed at the same station, without the need for multiple transfers of the packaging box to complete the folding and forming operation and the lid closing operation at different stations, the structure is simpler, the manufacturing cost is greatly reduced, the occupied area is smaller, the operation cycle speed is faster, the efficiency is greatly improved, and the folding box and lid closing device can better match the high-speed production line. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a combined three-dimensional schematic view of the folding box and lid closing device before folding of the present application.

[0028] Figure 2 It is a combined three-dimensional schematic view of the folding box and lid closing device before folding of the present application. Figure 1 It is a combined three-dimensional schematic view of the folding box and lid closing device before folding of the present application.

[0029] Figure 3 is Figure 1 schematic view from another perspective.

[0030] Figure 4 is a combined perspective view of the folding and covering device in the folding process of the box.

[0031] Figure 5 is Figure 4 schematic view from another perspective.

[0032] Figure 6 is a combined perspective view of the front box surface folding mechanism, the upper flat tongue folding mechanism, the inner insertion lug folding mechanism and the pressing insertion mechanism of the folding and covering device.

[0033] Figure 7 is Figure 6 schematic view from another perspective.

[0034] Figure 8 is a top view of the packaging box in the folding and covering device of the present application in the planar unfolded state.

[0035] Figure 9 is a process state schematic view of the packaging box in the folding and covering device of the present application being folded and formed from the planar unfolded state to the three-dimensional open cover state and then being covered to the three-dimensional covered state. DETAILED DESCRIPTION

[0036] The present application will be further described below in conjunction with the drawings and preferred embodiments, but the embodiments of the present application are not limited thereto.

[0037] Please refer to Figures 1 to 5 and Figures 8 to 9 , the folding and covering device 100 of the present application is suitable for folding and forming the packaging box 200 from the planar unfolded state to the three-dimensional open cover state (such as Figure 9 G state diagram in the middle) and then covering to the three-dimensional covered state (such as Figure 9The folding and covering device 100 of the present application comprises a base plate 10, a folding device (not labeled in the figure) and a covering device (not labeled in the figure), both of which are arranged on the base plate 10. The folding device folds the packaging box 200 from a flat unfolded state to a three-dimensional open-covering state. The covering device covers the packaging box 200 from the three-dimensional open-covering state to a three-dimensional covered state. Therefore, the folding operation and the covering operation can be completed in the same station on the base plate 10, without the need for multiple transfers of the packaging box 200 to complete the folding operation and the covering operation in different stations. The structure is simpler, the manufacturing cost is greatly reduced, the floor space is smaller, the operation cycle is faster, the efficiency is greatly improved, and the high-speed production line can be better matched. Specifically, as follows:

[0038] In the embodiment, as shown in the figure, Figure 8 The packaging box 200 in the flat unfolded state comprises a box bottom 201, a box cover 202, a front box face 203, a rear box face 204, a left box face 205, a right box face 206, a left lower pad face 207, a right lower pad face 208, a left inner tongue 209, a right inner tongue 211, a left front side ear 212, a right front side ear 213, an upper flat tongue 214 and a plurality of inner insertion ears 215. The front side edge of the rear box face 204 is connected to the rear side edge of the box bottom 201. The front side edge of the box cover 202 is connected to the rear side edge of the rear box face 204. The rear side edge of the front box face 203 is connected to the front side edge of the box bottom 201. The right side edge of the left box face 205 is connected to the left side edge of the rear box face 204. The left side edge of the right box face 206 is connected to the right side edge of the rear box face 204. The rear side edge of the left lower pad face 207 is connected to the front side edge of the left box face 205. The rear side edge of the right lower pad face 208 is connected to the front side edge of the right box face 206. The front side edge of the left inner tongue 209 is connected to the rear side edge of the left box face 205. The front side edge of the right inner tongue 211 is connected to the rear side edge of the right box face 206. The right side edge of the left front side ear 212 is connected to the left side edge of the front box face 203. The left side edge of the right front side ear 213 is connected to the right side edge of the front box face 203. The rear side edge of the upper flat tongue 214 is connected to the lower side edge of the front box face 203. The lower side edge of the inner insertion ear 215 is connected to the rear side edge of the box cover 202. Moreover, all the above-mentioned connecting parts are formed with creases for facilitating folding.

[0039] As shown in the figure, Figure 9As shown in the middle A state diagram to the G state diagram, the folding device folds the packaging box 200 from a flat unfolded state to a three-dimensional open cover state, the rear box face 204 is folded upward to be perpendicular to the box bottom 201, the front box face 203 is folded upward to be perpendicular to the box bottom 201, the left box face 205 is folded to be perpendicular to the box bottom 201, the front box face 203 and the rear box face 204, the right box face 206 is folded to be perpendicular to the box bottom 201, the front box face 203 and the rear box face 204, the left lower pad face 207 is folded to be stacked on the left end of the box bottom 201, the right lower pad face 208 is folded to be stacked on the right end of the box bottom 201, the left front side ear 212 is folded to be close to the right side of the left box face 205, the left inner tongue 209 is folded to be close to the right side of the left front side ear 212, that is, the left front side ear 212 is clamped between the left box face 205 and the left inner tongue 209; the right front side ear 213 is folded to be close to the left side of the right box face 206, the right inner tongue 211 is folded to be close to the left side of the right front side ear 213, that is, the right front side ear 213 is clamped between the right box face 206 and the right inner tongue 211; the upper flat tongue 214 is folded to be perpendicular to the front box face 203 (that is, located on the horizontal position), the box cover 202 and the inner insertion ear 215 are only folded synchronously with the rear box face 204, and are still in an unclosed state, so that the packaging box 200 is closed to a three-dimensional open cover state as shown in the middle G state diagram. Figure 9 As shown in the middle G state diagram.

[0040] As shown in the middle G state diagram. Figure 9 As shown in the middle G state diagram. Figure 9 As shown in the middle G state diagram.

[0041] As shown in the middle G state diagram. Figures 1 to 3 As shown in the middle G state diagram. Figure 9In the embodiment, the folding device comprises a box bottom bearing and adsorbing mechanism 11, a left limiting guide plate 12a, a right limiting guide plate 12b, a left lower pad surface folding mechanism 13 and a right lower pad surface folding mechanism 14. The box bottom bearing and adsorbing mechanism 11 comprises a bearing plate 111 and a plurality of first suction cups 112. In the embodiment, the bearing plate 111 is integrally formed on the base plate 10 to simplify the mounting and fixing structure of the bearing plate 111. Of course, in other embodiments, the bearing plate 111 can also be selectively fixedly connected to the base plate 10 in a separate connection and fixing installation structure, which is within the protection scope of the present application, and thus will not be described in detail here. The first suction cups 112 are fixed on the bearing plate 111 and exposed upward on the bearing plate 111. The first suction cups 112 are connected to an external vacuum device, so that the first suction cups 112 can generate negative pressure to play a vacuum adsorbing role, and the box bottom 201 is adsorbed and fixed by the first suction cups 112. The left limiting guide plate 12a and the right limiting guide plate 12b are vertically fixed on the base plate 10 in front and back directions. The left limiting guide plate 12a is located on the left side of the right limiting guide plate 12b in a spaced manner. The bearing plate 111 is located between the bottom of the left limiting guide plate 12a and the bottom of the right limiting guide plate 12b in the left-right direction. The upper end of the left limiting guide plate 12a is bent to the left, and the upper end of the right limiting guide plate 12b is bent to the right, so as to more smoothly guide the box bottom 201 to enter the area between the left limiting guide plate 12a and the right limiting guide plate 12b and fall onto the bearing plate 111 to be adsorbed by the first suction cups 112. Furthermore, the left lower pad surface folding mechanism 13 comprises a first linear driver 131, a first guide baffle 132 and a first fixed baffle 133. The first guide baffle 132 moves on the back side of the left limiting guide plate 12a in the left-right direction and is vertically arranged in the left-right direction. The first linear driver 131 can be a gas cylinder, but is not limited thereto. The first linear driver 131 is fixed on the base plate 10 in the left-right direction. The first guide baffle 132 is fixedly connected to the driving end of the first linear driver 131, so that the first guide baffle 132 is driven to move in the left-right direction by the first linear driver 131. The first fixed baffle 133 is vertically fixed on the base plate 10 in the left-right direction and is located directly below the first guide baffle 132. The right lower pad surface folding mechanism 14 comprises a second linear driver 141, a second guide baffle 142 and a second fixed baffle 143. The second guide baffle 142 moves on the back side of the right limiting guide plate 12b in the left-right direction and is vertically arranged in the left-right direction. The second linear driver 141 can be a gas cylinder, but is not limited thereto. The second linear driver 141 is fixed on the base plate 10 in the left-right direction. The second guide baffle 142 is fixedly connected to the driving end of the second linear driver 141, so that the second guide baffle 142 is driven to move in the left-right direction by the second linear driver 141.The second fixed baffle 143 is vertically fixed on the base plate 10 along the left-right direction and is located directly below the second guide baffle 142. When the right side of the first guide baffle 132 moves to be flush with the right side of the left limiting guide plate 12a and the left side of the first guide baffle 132 moves to be flush with the left side of the right limiting guide plate 12b, the first guide baffle 132 and the second guide baffle 142 are in the A state shown in FIG. 6. Figure 8 When the box bottom 201 of the packaging box 200 in the flat unfolded state is aligned and moved downward into the area between the left limiting guide plate 12a and the right limiting guide plate 12b and falls onto the bearing plate 111, the packaging box 200 in the flat unfolded state is pushed by the first guide baffle 132 to fold the left lower pad surface 207 upward to the vertical state and is pushed by the second guide baffle 142 to fold the right lower pad surface 208 upward to the vertical state during the downward movement. When the box bottom 201 falls onto the bearing plate 111 and is adsorbed by the first suction cup 112, the left lower pad surface 207 is maintained in the vertical state by the first fixed baffle 133 and the right lower pad surface 208 is maintained in the vertical state by the second fixed baffle 143, so that the left lower pad surface 207 and the right lower pad surface 208 are folded to the B state shown in FIG. 7. Figure 9 The A state diagram.

[0042] Please refer to Figures 1 to 5 and FIGS. 8 to Figure 9In the embodiment, the folding device further comprises a left box face folding mechanism 15 and a right box face folding mechanism 16. The left box face folding mechanism 15 comprises a third linear actuator 151 and a third guide baffle 152. The third linear actuator 151 can be a cylinder, but is not limited to this. The third linear actuator 151 is vertically fixed to the base plate 10. The third guide baffle 152 is fixedly connected to the driving end of the third linear actuator 151. The third guide baffle 152 is vertically arranged along the front-rear direction and is located at the rear side of the left limiting guide plate 12a. The third linear actuator 151 can drive the third guide baffle 152 to move upwardly out of the base plate 10 or to move downwardly to be retracted below the base plate 10. The upper end of the third guide baffle 152 is bent to the left, so as to conveniently guide the left box face 205 to be folded upwardly. The right box face folding mechanism 16 comprises a fourth linear actuator 161 and a fourth guide baffle 162. The fourth linear actuator 161 can be a cylinder, but is not limited to this. The fourth linear actuator 161 is vertically fixed to the base plate 10. The fourth guide baffle 162 is fixedly connected to the driving end of the fourth linear actuator 161. The fourth guide baffle 162 is vertically arranged along the front-rear direction and is located at the rear side of the right limiting guide plate 12b. The fourth linear actuator 161 can drive the fourth guide baffle 162 to move upwardly out of the base plate 10 or to move downwardly to be retracted below the base plate 10. The upper end of the fourth guide baffle 162 is bent to the right, so as to conveniently guide the right box face 206 to be folded upwardly. When the third linear actuator 151 drives the third guide baffle 152 to move upwardly out of the base plate 10, the third guide baffle 152 can push the left box face 205 to be folded upwardly. When the fourth linear actuator 161 drives the fourth guide baffle 162 to move upwardly out of the base plate 10, the fourth guide baffle 162 can push the right box face 206 to be folded upwardly, so that the left box face 205 and the right box face 206 are folded to the state shown in FIG. 8. Figure 9

[0043] Please refer to Figures 1 to 5 and FIGS. 8 to Figure 9 ​In the embodiment, the folding device further comprises a left front ear folding mechanism 17 and a right front ear folding mechanism 18. The left front ear folding mechanism 17 comprises a fifth linear actuator 171 and a fifth guide baffle 172. The fifth linear actuator 171 can be a cylinder, but is not limited to this. The fifth linear actuator 171 is fixed on the base plate 10 in the left-right direction. The fifth guide baffle 172 is fixedly connected to the driving end of the fifth linear actuator 171. The fifth guide baffle 172 is vertically arranged in the front-rear direction and is located in front of the left limiting guide plate 12a. The right front ear folding mechanism 18 comprises a sixth linear actuator 181 and a sixth guide baffle 182. The sixth linear actuator 181 can be a cylinder, but is not limited to this. The sixth linear actuator 181 is fixed on the base plate 10 in the left-right direction. The sixth guide baffle 182 is fixedly connected to the driving end of the sixth linear actuator 181. The sixth guide baffle 182 is vertically arranged in the front-rear direction and is located in front of the right limiting guide plate 12b. During the downward movement of the flat unfolded state of the packaging box 200, the fifth linear actuator 171 drives the fifth guide baffle 172 to move to be flush with the right side surface of the left limiting guide plate 12a, and the sixth linear actuator 181 drives the sixth guide baffle 182 to move to be flush with the left side surface of the right limiting guide plate 12b, so that the fifth guide baffle 172 pushes the left front ear 212 to be folded upward to the vertical state, and the sixth guide baffle 182 pushes the right front ear 213 to be folded upward to the vertical state, so that the left front ear 212 and the right front ear 213 are folded to the state shown in FIG. 8. Figure 9 the middle C state diagram.

[0044] Please refer to Figures 1 to 5 and FIGS. 8 to Figure 9 In the embodiment, the folding device further comprises a rear box face folding mechanism 19. The rear box face folding mechanism 19 comprises a seventh linear actuator 191 and a seventh guide baffle 192. The seventh linear actuator 191 can be a cylinder, but is not limited to this. The seventh linear actuator 191 is vertically fixed on the base plate 10. The seventh guide baffle 192 is vertically fixed on the driving end of the seventh linear actuator 191 and is located on the rear side of the bearing plate 111. When the box bottom 201 is carried on the bearing plate 111 and is adsorbed by the first suction cup 112, the seventh linear actuator 191 drives the seventh guide baffle 192 to move vertically upward to push the rear box face 204 to be folded upward to the vertical state, and at the same time drives the left lower pad face 207 to be rotated to be stacked on the left end of the box bottom 201, and drives the right lower pad face 208 to be rotated to be stacked on the right end of the box bottom 201, so that the rear box face 204 is folded to the state shown in FIG. 8. Figure 9The middle D state diagram. At this time, the first guide baffle 132 moves to the right and extends from the right side of the left limiting guide plate 12a, and the second guide baffle 142 moves to the left and extends from the left side of the right limiting guide plate 12b, so as to block and limit the box cover 202 in a vertical state, preventing the box cover 202 from being bent accidentally, and the structure is more safe and reasonable.

[0045] Please refer to Figures 1 to 9 In the embodiment, the folding device further comprises a front box face folding mechanism 22, the front box face folding mechanism 22 comprising a first rotary driver 221, a first rotating baffle 222 and a plurality of second suction cups 223. The first rotary driver 221 can be selected as a motor, but is not limited thereto. The first rotary driver 221 is fixed on the base plate 10. The first rotating baffle 222 is pivotally connected to the base plate 10 about a first axis line, and the first axis line is arranged in the left-right direction. The first rotating baffle 222 is drivingly connected to the output end of the first rotary driver 221, and the first axis line is located on the front side of the bearing plate 111. Alternatively, in the embodiment, the first rotating baffle 222 is directly fixedly connected to the output end of the first rotary driver 221 through a rotating shaft, and the structure is more simple and compact. The second suction cups 223 are fixed on the first rotating baffle 222, and the second suction cups 223 are exposed upward on the first rotating baffle 222. The second suction cups 223 are connected to an external vacuum device, so that the second suction cups 223 can generate negative pressure to play a role of vacuum adsorption, and the second suction cups 223 are used to adsorb and fix the front box face 203. The first rotary driver 221 drives the first rotating baffle 222 to rotate upward by 90° from the horizontal state shown in Figure 1 to the vertical state shown in Figure 4 , so as to push the front box face 203 upward to fold to the vertical state through the first rotating baffle 222, and at the same time drive the left front side ear 212 to rotate to tightly abut the right side of the left box face 205, drive the right front side ear 213 to rotate to tightly abut the left side of the right box face 206, and drive the upper flat tongue 214 to rotate to the vertical state, so as to make the front box face 203 fold to the state shown in Figure 9 , and keep the front box face 203 in the vertical state through the second suction cups 223.

[0046] Please refer to Figures 1 to 5 and Figures 8 to Figure 9In the embodiment, the folding device further comprises a left inner tongue folding mechanism 23 and a right inner tongue folding mechanism 24. The left inner tongue folding mechanism 23 comprises a second rotary driver 231, a first rotary mounting base 232, an eighth linear driver 233, a second rotary baffle 234, and a first pressing plate 235. The second rotary driver 231 can be a motor, but is not limited to a motor. The second rotary driver 231 is fixed on the base plate 10. The first rotary mounting base 232 is pivotally connected to the base plate 10 about a fifth axis line. The fifth axis line is arranged in the front-rear direction and above the left side edge of the bearing plate 111. The first rotary mounting base 232 is drivingly connected to the output end of the second rotary driver 231. In the embodiment, the first rotary mounting base 232 is drivingly connected to the output end of the second rotary driver 231 through a crank linkage assembly plus a synchronous belt transmission structure, which is a conventional technical means familiar to those skilled in the art, and thus will not be described in detail herein. The second rotary baffle 234 is vertically fixed on the first rotary mounting base 232. The eighth linear driver 233 can be a pneumatic cylinder, but is not limited to a pneumatic cylinder. The eighth linear driver 233 is fixed on the first rotary mounting base 232 in the direction perpendicular to the fifth axis line. The first pressing plate 235 is fixedly connected to the driving end of the eighth linear driver 233. The first pressing plate 235 is perpendicular to the eighth linear driver 233. The top of the first pressing plate 235 is bent to form a first pressing protrusion 2351. The first pressing protrusion 2351 can extend to the right or retract into the second rotary baffle 234. Then, the second rotary driver 231 drives the first rotary mounting base 232 to drive the second rotary baffle 234 to flip to the right side from the position above the left side edge of the bearing plate 111. The second rotary baffle 234 pushes the left inner tongue 209 to the right and down to the right side of the left front side ear 212. The eighth linear driver 233 drives the first pressing plate 235 to press the left inner tongue 209 to be tightly pressed against the right side of the left front side ear 212, thereby further strengthening the folding of the left inner tongue 209 in place, as shown in the F state diagram in FIG. 8. Figure 1 Figure 9

[0047] ​​Furthermore, the right inner tongue folding mechanism 24 comprises a third rotary driver 241, a second rotary mounting base 242, a ninth linear driver 243, a third rotary baffle 244 and a second pressing plate 245. The third rotary driver 241 can be a motor, but is not limited to a motor. The third rotary driver 241 is fixed on the base plate 10. The second rotary mounting base 242 is pivotally connected to the base plate 10 about a sixth axis line. The sixth axis line is arranged along the front-rear direction and above the right side edge of the bearing plate 111. The second rotary mounting base 242 is drivingly connected to the output end of the third rotary driver 241. In this embodiment, the second rotary mounting base 242 is drivingly connected to the output end of the third rotary driver 241 through a crank linkage assembly plus a synchronous belt transmission structure, which is a conventional technical means familiar to those skilled in the art, and thus will not be described in detail herein. The third rotary baffle 244 is vertically fixed on the second rotary mounting base 242. The ninth linear driver 243 can be a pneumatic cylinder, but is not limited to a pneumatic cylinder. The ninth linear driver 243 is fixed on the second rotary mounting base 242 along the vertical direction of the sixth axis line. The second pressing plate 245 is fixedly connected to the driving end of the ninth linear driver 243. The second pressing plate 245 is perpendicular to the ninth linear driver 243. The top of the second pressing plate 245 is bent to form a second pressing protrusion 2451. The second pressing protrusion 2451 can extend leftward or retract into the third rotary baffle 244. Then, the third rotary driver 241 drives the second rotary mounting base 242 to rotate about the sixth axis line to the left to drive the third rotary baffle 244 to rotate to the left, which in turn pushes the right inner tongue 211 to fold to the left below the left side of the right front side ear 213. Then, the ninth linear driver 243 drives the second pressing plate 245 to press the right inner tongue 211 to be tightly pressed against the left side of the right front side ear 213, which further enhances the folding of the right inner tongue 211 in place, as shown in the F state diagram in FIG. 8. Figure 1 The right front side ear 213 is clamped between the right box surface 206 and the right inner tongue 211. Figure 9

[0048] Please refer to Figures 1 to 9 ​In this embodiment, the folding device further includes an upper flat tongue folding mechanism 25, which includes a tenth linear actuator 251, a rotating seat 252, and a fourth rotating baffle 253. The tenth linear actuator 251 can be a cylinder, but is not limited thereto. The tail end of the tenth linear actuator 251 is pivotally connected to the first rotating baffle 222 around a second axis. The rotating seat 252 has an upper connecting end (not shown in the figure), a pivot part (not shown in the figure), and a lower connecting end (not shown in the figure) sequentially formed. The pivot part is pivotally connected to the first rotating baffle 222 around a third axis. The driving end of the tenth linear actuator 251 is pivotally connected to the lower connecting end around a fourth axis. The second, third, and fourth axes are all arranged in the left-right direction. The fourth rotating baffle 253 is fixedly connected to the upper connecting end and is arranged in the left-right direction. Therefore, when the first rotary actuator 221 drives the first rotating baffle 222 from... Figure 1 Rotate upwards 90° from the horizontal position shown. Figure 4 In the vertical position shown, the upper flat tongue folding mechanism 25 also rotates upward by 90° along with the first rotating baffle 222, that is, the fourth rotating baffle 253 rotates synchronously with the first rotating baffle 222 to the vertical position, and the upper flat tongue 214 also rotates with the front box surface 203 to the vertical position. Figure 9 The vertical state shown in the E and F state diagrams is then driven by the tenth linear actuator 251 to rotate the rotating seat 252, which in turn drives the fourth rotating baffle 253 from the vertical state to the horizontal state. Figures 4 to 7 The horizontal position shown indicates that the upper flat tongue 214 is pushed and rotated by the fourth rotating baffle 253 to the horizontal position. Figure 9 The horizontal state shown in the G state diagram.

[0049] Please see Figures 1 to 5 and Figures 8 to 9In the present embodiment, the cover closing device comprises a cover closing folding mechanism 31, which comprises a fourth rotary driver 311, a fifth rotary baffle 312 and a plurality of third suction cups 313. The fourth rotary driver 311 can be a motor, but is not limited thereto. The fourth rotary driver 311 is fixed to the seventh guide baffle 192. The fifth rotary baffle 312 is pivotally connected to the seventh guide baffle 192 about a seventh axis line. The seventh axis line is arranged along the left-right direction. The fifth rotary baffle 312 is drivingly connected to the output end of the fourth rotary driver 311. The seventh axis line is located at the top side of the seventh guide baffle 192. In the present embodiment, the fifth rotary baffle 312 is drivingly connected to the output end of the fourth rotary driver 311 through a transmission structure of a crank linkage assembly, which is a conventional technical means known to those skilled in the art, and thus will not be described in detail herein. The third suction cups 313 are fixed to the fifth rotary baffle 312 and exposed upward on the fifth rotary baffle 312. The third suction cups 313 are connected to an external vacuum device, so that the third suction cups 313 can generate negative pressure to play a role of vacuum adsorption, and the box cover 202 is adsorbed and fixed by the third suction cups 313. Then, the fourth rotary driver 311 drives the fifth rotary baffle 312 to rotate forward, and the box cover 202 is pushed forward by the fifth rotary baffle 312 to fold forward to the inclined state shown in the middle H state diagram, waiting for the folding of the inner ear 215. Figure 9

[0050] Please refer to Figures 1 to 9 ​In the embodiment, the cover closing device further comprises an ear folding mechanism 32 and a pressing insertion mechanism 33. The ear folding mechanism 32 comprises a tenth linear actuator 321, a connecting seat 322 and an eighth guide baffle 323. The tenth linear actuator 321 can be a cylinder, but is not limited to this. The tenth linear actuator 321 is fixed to the first rotating baffle 222 and is perpendicular to the first rotating baffle 222. The connecting seat 322 is fixedly connected to the driving end of the tenth linear actuator 321. The eighth guide baffle 323 is fixedly connected to the connecting seat 322 and is arranged in the left-right direction. The eighth guide baffle 323 is driven by the tenth linear actuator 321 to reciprocate in the direction perpendicular to the first rotating baffle 222. Furthermore, the pressing insertion mechanism 33 comprises a twelfth linear actuator 331 and a ninth guide baffle 332. The twelfth linear actuator 331 can be a cylinder, but is not limited to this. The twelfth linear actuator 331 is fixed to the connecting seat 322 and is parallel to the tenth linear actuator 321. The ninth guide baffle 332 is fixedly connected to the driving end of the twelfth linear actuator 331 and is arranged in the left-right direction. The ninth guide baffle 332 is driven by the twelfth linear actuator 331 to reciprocate in the direction parallel to the eighth guide baffle 323. When the first rotating baffle 222 is driven by the first rotating driver 221 to rotate 90° upward from the horizontal state shown in FIG. 16A to the vertical state shown in FIG. 16B, the ear folding mechanism 32 and the pressing insertion mechanism 33 rotate 90° upward along with the first rotating baffle 222, that is, the eighth guide baffle 323 and the ninth guide baffle 332 rotate synchronously with the first rotating baffle 222 to the vertical state shown in FIG. 16B. The eighth guide baffle 323 is located above the front side of the bearing plate 111 and the ninth guide baffle 332 is located above the eighth guide baffle 323. When the fifth rotating baffle 312 pushes the box cover 202 to fold forward to the inclined state shown in FIG. 16C (at this time, the ear 215 is located directly below the eighth guide baffle 323), the box cover 202 is adsorbed and fixed by the third suction cup 313 to prevent the box cover 202 from falling downward. The tenth linear actuator 321 drives the eighth guide baffle 323 to move vertically downward. The eighth guide baffle 323 pushes the ear 215 to fold downward to be perpendicular to the box cover 202. The fifth rotating baffle 312 continues to push the box cover 202 to fold forward. When the box cover 202 is folded to be directly below the ninth guide baffle 332, the twelfth linear actuator 331 drives the ninth guide baffle 332 to move vertically downward. The ninth guide baffle 332 pushes the connection between the box cover 202 and the ear 215 to push the ear 215 to be inserted into the corresponding insertion hole 216 until the packaging box 200 is closed as shown in FIG. 16D. Figure 1 Figure 4 Figures 4 to 7 Figure 9 ​​​​Figure 9 The three-dimensional cover closing state shown in the middle J state diagram.

[0051] The working principle of the folding box cover closing device 100 of the present application is described in detail in combination with the drawings:

[0052] When the right side edge of the first guide baffle 132 moves flush with the right side of the left limiting guide plate 12a, and the left side edge of the first guide baffle 132 moves flush with the left side of the right limiting guide plate 12b, the left lower pad surface 207 is pushed up by the first guide baffle 132 to the vertical state, and the right lower pad surface 208 is pushed up by the second guide baffle 142 to the vertical state. Figure 8 The folding box 200 in the planar unfolded state shown in the figure is carried by an external handling robot to the area between the left limiting guide plate 12a and the right limiting guide plate 12b by aligning the box bottom 201 and pushing it down to fall onto the bearing plate 111. During the downward movement of the folding box 200 in the planar unfolded state, the first guide baffle 132 pushes the left lower pad surface 207 to fold up to the vertical state, and the second guide baffle 142 pushes the right lower pad surface 208 to fold up to the vertical state. When the box bottom 201 falls onto the bearing plate 111 and is adsorbed by the first suction cup 112, the left lower pad surface 207 is maintained in the vertical state by the first fixed baffle 133, and the right lower pad surface 208 is maintained in the vertical state by the second fixed baffle 143, so that the left lower pad surface 207 and the right lower pad surface 208 are folded up to the state shown in the middle A state diagram. Figure 9 The middle A state diagram.

[0053] Then, the left box surface folding mechanism 15 and the right box surface folding mechanism 16 are used for folding, that is, when the third guide baffle 152 is driven by the third linear actuator 151 to move vertically upward and extend out of the base plate 10, the third guide baffle 152 can push the left box surface 205 to fold up; when the fourth guide baffle 162 is driven by the fourth linear actuator 161 to move vertically upward and extend out of the base plate 10, the fourth guide baffle 162 can push the right box surface 206 to fold up, so that the left box surface 205 and the right box surface 206 are folded up to the state shown in the middle B state diagram. Figure 9 The middle B state diagram.

[0054] At the same time, during the downward movement of the folding box 200 in the planar unfolded state, the left front ear folding mechanism 17 and the right front ear folding mechanism 18 are used for folding, that is, the fifth guide baffle 172 is driven by the fifth linear actuator 171 to move flush with the right side of the left limiting guide plate 12a, and the sixth guide baffle 182 is driven by the sixth linear actuator 181 to move flush with the left side of the right limiting guide plate 12b, so that the fifth guide baffle 172 pushes the left front ear 212 to fold up to the vertical state, and the sixth guide baffle 182 pushes the right front ear 213 to fold up to the vertical state, so that the left front ear 212 and the right front ear 213 are folded up to the state shown in the middle C state diagram. Figure 9 The middle C state diagram.

[0055] Then, the rear box folding mechanism 19 folds the box. When the bottom of the box 201 is supported on the support plate 111 and held by the first suction cup 112, the seventh linear actuator 191 drives the seventh guide baffle 192 to move vertically upward to push the rear box surface 204 upward to a vertical position. At the same time, it drives the lower left pad 207 to rotate to the left end of the bottom of the box 201 and the lower right pad 208 to rotate to the right end of the bottom of the box 201, thereby causing the rear box surface 204 to fold upward to a vertical position. Figure 9 The diagram shows the state of the box cover 202. At this time, the first guide baffle 132 moves to the right and extends to the right side of the left limiting guide plate 12a, and the second guide baffle 142 moves to the left and extends to the left side of the right limiting guide plate 12b, so as to block and limit the box cover 202 in a vertical state and prevent the box cover 202 from bending accidentally.

[0056] Next, the front box folding mechanism 22 folds the box, and the first rotary driver 221 drives the first rotating baffle 222 to fold. Figure 1 Rotate upwards 90° from the horizontal position shown. Figure 4 The vertical position shown is achieved by pushing the front box surface 203 upwards to a vertical position via the first rotating baffle 222, simultaneously causing the left front side ear 212 to rotate to the right side of the left box surface 205 and the right front side ear 213 to rotate to the left side of the right box surface 206, and causing the upper flat tongue 214 to rotate to a vertical position, thereby causing the front box surface 203 to fold upwards to a vertical position. Figure 9 The E state diagram shows that the front box surface 203 is fixed in a vertical state by the second suction cup 223.

[0057] Then, the left inner tongue folding mechanism 23 and the right inner tongue folding mechanism 24 cooperate to fold it, that is, the first rotating mounting base 232 is driven by the second rotary driver 231. Figure 1 The position located on the left outer side of the support plate 111 drives the second rotating baffle 234 to flip to the right. The second rotating baffle 234 pushes the left inner tongue 209 to fold downward and to the right side of the left front ear 212. Then, the eighth linear actuator 233 drives the first pressure plate 235 to press the left inner tongue 209 tightly against the right side of the left front ear 212, further reinforcing the folding of the left inner tongue 209 into place. Figure 9 As shown in the F state diagram, the left front side ear 212 is positioned between the left box surface 205 and the left inner tongue 209. And the second rotating mounting base 242 is driven by the third rotating actuator 241. Figure 1 The position located on the right outer side of the bearing plate 111 drives the third rotating baffle 244 to flip to the left. The third rotating baffle 244 pushes the right inner tongue 211 to fold downwards and to the left side of the right front ear 213. Then, the ninth linear actuator 243 drives the second pressure plate 245 to press the right inner tongue 211 tightly against the left side of the right front ear 213, further reinforcing the folding of the right inner tongue 211 into place.Figure 9 The right front side ear 213 is clamped between the right box face 206 and the right inner tongue 211 as shown in the middle F state diagram.

[0058] Then, the upper tongue folding mechanism 25 is used to fold the upper tongue 214. The first rotary driver 221 drives the first rotary baffle 222 to rotate 90° upward from the horizontal state shown in the middle E state diagram to the vertical state shown in the middle F state diagram. Figure 1 The upper tongue folding mechanism 25 also rotates 90° upward with the first rotary baffle 222, i.e., the fourth rotary baffle 253 rotates synchronously with the first rotary baffle 222 to the vertical state, and the upper tongue 214 rotates with the front box face 203 to the vertical state shown in the middle F state diagram. Figure 4 The tenth linear driver 251 drives the rotary seat 252 to drive the fourth rotary baffle 253 to rotate from the vertical state to the horizontal state shown in the middle G state diagram, so that the fourth rotary baffle 253 pushes the upper tongue 214 to rotate to the horizontal state shown in the middle G state diagram. Figure 9 The tenth linear driver 251 drives the rotary seat 252 to drive the fourth rotary baffle 253 to rotate from the vertical state to the horizontal state shown in the middle G state diagram, so that the fourth rotary baffle 253 pushes the upper tongue 214 to rotate to the horizontal state shown in the middle G state diagram. Figures 4 to 7 The tenth linear driver 251 drives the rotary seat 252 to drive the fourth rotary baffle 253 to rotate from the vertical state to the horizontal state shown in the middle G state diagram, so that the fourth rotary baffle 253 pushes the upper tongue 214 to rotate to the horizontal state shown in the middle G state diagram. Figure 9 The tenth linear driver 251 drives the rotary seat 252 to drive the fourth rotary baffle 253 to rotate from the vertical state to the horizontal state shown in the middle G state diagram, so that the fourth rotary baffle 253 pushes the upper tongue 214 to rotate to the horizontal state shown in the middle G state diagram.

[0059] Then, the upper tongue folding mechanism 25 is used to fold the upper tongue 214. The first rotary driver 221 drives the first rotary baffle 222 to rotate 90° upward from the horizontal state shown in the middle E state diagram to the vertical state shown in the middle F state diagram. Figure 9 The tenth linear driver 251 drives the rotary seat 252 to drive the fourth rotary baffle 253 to rotate from the vertical state to the horizontal state shown in the middle G state diagram, so that the fourth rotary baffle 253 pushes the upper tongue 214 to rotate to the horizontal state shown in the middle G state diagram.

[0060] Then, the upper tongue folding mechanism 25 is used to fold the upper tongue 214. The first rotary driver 221 drives the first rotary baffle 222 to rotate 90° upward from the horizontal state shown in the middle E state diagram to the vertical state shown in the middle F state diagram. Figure 1 The tenth linear driver 251 drives the rotary seat 252 to drive the fourth rotary baffle 253 to rotate from the vertical state to the horizontal state shown in the middle G state diagram, so that the fourth rotary baffle 253 pushes the upper tongue 214 to rotate to the horizontal state shown in the middle G state diagram. Figure 4 The tenth linear driver 251 drives the rotary seat 252 to drive the fourth rotary baffle 253 to rotate from the vertical state to the horizontal state shown in the middle G state diagram, so that the fourth rotary baffle 253 pushes the upper tongue 214 to rotate to the horizontal state shown in the middle G state diagram. Figures 4 to 7 The tenth linear driver 251 drives the rotary seat 252 to drive the fourth rotary baffle 253 to rotate from the vertical state to the horizontal state shown in the middle G state diagram, so that the fourth rotary baffle 253 pushes the upper tongue 214 to rotate to the horizontal state shown in the middle G state diagram. Figure 9When the package 200 is in the inclined state shown in the middle H state diagram (at this time, the insertion lug 215 is located directly below the eighth guide baffle 323), the box cover 202 is fixed by the third suction cup 313 to prevent the box cover 202 from falling downward, the eighth guide baffle 323 is vertically moved downward by the tenth linear actuator 321, the insertion lug 215 is pushed downward by the eighth guide baffle 323 to fold vertically to the box cover 202, the fifth rotating baffle 312 pushes the box cover 202 to continue to fold forward, when the box cover 202 is folded to be directly below the ninth guide baffle 332, the ninth guide baffle 332 is vertically moved downward by the twelfth linear actuator 331, the connection between the box cover 202 and the insertion lug 215 is pushed by the ninth guide baffle 332 to push the insertion lug 215 to be inserted into the corresponding insertion hole 216, until the package 200 is closed as shown in the middle J state diagram. Figure 9 The package 200 is in the three-dimensional closed state shown in the middle J state diagram, so that the folding operation and the closing operation are completed at the same station.

[0061] Since the folding device and the box closing device of the folding and closing device 100 of the present application are arranged on the base plate 10, the folding device folds the package 200 from the planar unfolded state to the three-dimensional open state, and the closing device closes the package 200 from the three-dimensional open state to the three-dimensional closed state. Therefore, only the folding device is needed to fold the package 200 from the planar unfolded state to the three-dimensional open state at the same station on the base plate 10, and then the closing device is used to close the package 200 from the three-dimensional open state to the three-dimensional closed state, so that the folding operation and the closing operation can be completed at the same station. The folding operation and the closing operation do not need to be completed separately at different stations by moving the package 200 multiple times, the structure is simpler, the manufacturing cost is greatly reduced, the occupied area is smaller, the operation speed is faster, the efficiency is greatly improved, and the high-speed production line can be better matched.

[0062] The present application has been described in conjunction with the embodiments above, but the present application is not limited to the embodiments disclosed above, but should cover various modifications, equivalent combinations made according to the essence of the present application.

Claims

1. A box folding and closing device, suitable for folding a packaging box from a flat unfolded state to a three-dimensional open state and then closing it to a three-dimensional closed state, characterized in that, The folding and closing device includes a base plate, a folding device, and a closing device. The folding device and the closing device are both disposed on the base plate. The folding device folds the packaging box from the planar unfolded state to the three-dimensional open state. The closing device closes the packaging box from the three-dimensional open state to the three-dimensional closed state. The folding device includes: a bottom support and adsorption mechanism, a left limiting guide plate, a right limiting guide plate, a left lower pad folding mechanism, and a right lower pad folding mechanism. The box bottom bearing adsorption mechanism includes: a bearing plate and a plurality of first suction cups. The bearing plate is integrally formed or fixedly connected to the substrate. The first suction cups are fixed to the bearing plate and exposed on the bearing plate with the first suction cups facing upward. The left limiting guide plate and the right limiting guide plate are both fixed to the substrate in a vertical direction. The left limiting guide plate is located on the left side of the right limiting guide plate at a distance. The bearing plate is located between the bottom of the left limiting guide plate and the bottom of the right limiting guide plate in a left-right direction. The lower left pad folding mechanism includes: a first linear actuator, a first guide baffle, and a first fixed baffle. The first guide baffle moves in the left-right direction behind the left limiting guide plate and is vertically arranged in the left-right direction. The first linear actuator is fixed to the substrate in the left-right direction, and the first guide baffle is fixedly connected to the driving end of the first linear actuator. The first fixed baffle is vertically fixed to the substrate in the left-right direction, and the first fixed baffle is located directly below the first guide baffle. The lower right pad folding mechanism includes: a second linear actuator, a second guide baffle, and a second fixed baffle. The second guide baffle moves in the left-right direction behind the right limiting guide plate and is vertically arranged in the left-right direction. The second linear actuator is fixed to the substrate in the left-right direction, and the second guide baffle is fixedly connected to the driving end of the second linear actuator. The second fixed baffle is vertically fixed to the substrate in the left-right direction and is located directly below the second guide baffle.

2. The folding and closing device as described in claim 1, characterized in that, The folding device further includes: a left box folding mechanism and a right box folding mechanism. The left box folding mechanism includes: a third linear actuator and a third guide baffle. The third linear actuator is vertically fixed on the base plate, and the third guide baffle is fixedly connected to the driving end of the third linear actuator. The third guide baffle is vertically arranged in the front-back direction and is located behind the left limiting guide plate. The right box folding mechanism includes a fourth linear driver and a fourth guide baffle. The fourth linear driver is vertically fixed on the base plate, and the fourth guide baffle is fixedly connected to the driving end of the fourth linear driver. The fourth guide baffle is arranged vertically in the front-back direction and is located behind the right limiting guide plate.

3. The folding and closing device as described in claim 1, characterized in that, The folding device further includes: a left anterior ear folding mechanism and a right anterior ear folding mechanism. The left anterior ear folding mechanism includes: a fifth linear actuator and a fifth guide baffle. The fifth linear actuator is fixed on the base plate in the left-right direction. The fifth guide baffle is fixedly connected to the driving end of the fifth linear actuator. The fifth guide baffle is arranged vertically in the front-back direction and is located in front of the left limiting guide plate. The right anterior ear folding mechanism includes a sixth linear actuator and a sixth guide baffle. The sixth linear actuator is fixed to the base plate in the left-right direction. The sixth guide baffle is fixedly connected to the driving end of the sixth linear actuator. The sixth guide baffle is arranged vertically in the front-back direction and is located in front of the right limiting guide plate.

4. The folding and closing device as described in claim 1, characterized in that, The folding device further includes a rear box folding mechanism, which includes a seventh linear driver and a seventh guide baffle. The seventh linear driver is vertically fixed on the substrate, and the seventh guide baffle is vertically fixed to the driving end of the seventh linear driver, and the seventh guide baffle is located on the rear side of the support plate.

5. The folding and closing device as described in claim 1, characterized in that, The folding device further includes a front box folding mechanism, which includes a first rotary driver, a first rotating baffle, and a plurality of second suction cups. The first rotary driver is fixed to the substrate, and the first rotating baffle is pivotally connected to the substrate around a first axis. The first axis is arranged in a left-right direction, and the first rotating baffle is tractively connected to the output end of the first rotary driver. The first axis is located on the front side of the support plate. The second suction cups are fixed to the first rotating baffle, and the second suction cups are exposed upward on the first rotating baffle.

6. The folding and closing device as described in claim 1, characterized in that, The folding device further includes: a left inner tongue folding mechanism and a right inner tongue folding mechanism. The left inner tongue folding mechanism includes: a second rotary driver, a first rotary mounting base, an eighth linear driver, a second rotary baffle, and a first pressure plate. The second rotary driver is fixed to the base plate. The first rotary mounting base is pivotally connected to the base plate around a fifth axis. The fifth axis is arranged in the front-rear direction and is located above the left side of the support plate. The first rotary mounting base is driven to the output end of the second rotary driver. The second rotary baffle is vertically fixed to the first rotary mounting base. The eighth linear driver is fixed to the first rotary mounting base in a direction perpendicular to the fifth axis. The first pressure plate is fixedly connected to the drive end of the eighth linear driver. The first pressure plate is perpendicular to the eighth linear driver. The top of the first pressure plate is bent to form a first pressing protrusion. The first pressing protrusion can extend to the right or retract into the second rotary baffle. The right inner tongue folding mechanism includes: a third rotary driver, a second rotary mounting base, a ninth linear driver, a third rotary baffle, and a second pressure plate. The third rotary driver is fixed to the base plate. The second rotary mounting base is pivotally connected to the base plate around a sixth axis. The sixth axis is arranged in the front-rear direction and is located above the right side of the support plate. The second rotary mounting base is drivenly connected to the output end of the third rotary driver. The third rotary baffle is vertically fixed to the second rotary mounting base. The ninth linear driver is fixed to the second rotary mounting base in a direction perpendicular to the sixth axis. The second pressure plate is fixedly connected to the drive end of the ninth linear driver. The second pressure plate is perpendicular to the ninth linear driver. The top of the second pressure plate is bent to form a second pressing protrusion. The second pressing protrusion can extend to the left or retract into the third rotary baffle.

7. The folding and closing device as described in claim 5, characterized in that, The folding device further includes an upper flat tongue folding mechanism, which includes a tenth linear actuator, a rotating base, and a fourth rotating baffle. The tail end of the tenth linear actuator is pivotally connected to the first rotating baffle around a second axis. The rotating base has an upper connecting end, a pivot part, and a lower connecting end formed sequentially. The pivot part is pivotally connected to the first rotating baffle around a third axis. The driving end of the tenth linear actuator is pivotally connected to the lower connecting end around a fourth axis. The second axis, the third axis, and the fourth axis are all arranged in the left-right direction. The fourth rotating baffle is fixedly connected to the upper connecting end and is arranged in the left-right direction.

8. The folding and closing device as described in claim 4, characterized in that, The lid closing device includes a lid closing and flipping mechanism, which includes a fourth rotary driver, a fifth rotating baffle, and a plurality of third suction cups. The fourth rotary driver is fixed to the seventh guide baffle. The fifth rotating baffle is pivotally connected to the seventh guide baffle around a seventh axis, which is arranged in a left-right direction. The fifth rotating baffle is driven to the output end of the fourth rotary driver, and the seventh axis is located on the top side of the seventh guide baffle. The third suction cups are fixed to the fifth rotating baffle and are exposed upward on the fifth rotating baffle.

9. The folding and closing device as described in claim 5, characterized in that, The closing device further includes: an inner ear folding mechanism and a pressing insertion mechanism. The inner ear folding mechanism includes: an eleventh linear driver, a connecting seat, and an eighth guide baffle. The eleventh linear driver is fixed on the first rotating baffle and is perpendicular to the first rotating baffle. The connecting seat is fixedly connected to the driving end of the eleventh linear driver. The eighth guide baffle is fixedly connected to the connecting seat and is arranged in the left-right direction. The pressing insertion mechanism includes a twelfth linear actuator and a ninth guide baffle. The twelfth linear actuator is fixed on the connecting seat and is parallel to the eleventh linear actuator. The ninth guide baffle is fixedly connected to the driving end of the twelfth linear actuator and is arranged in the left-right direction.

Images