Packaging production line for push-pull cover type packaging box

Abstract

The utility model relates to a packaging production line for a push-pull cover type packaging box. The conveying line is arranged on a packaging production line and used for conveying packaging boxes, the box pushing mechanism is used for pushing box bodies of the packaging boxes to the conveying line, and the capping mechanism is used for fixing box covers above the conveying line and pushing the box bodies into the box covers to complete packaging when the box bodies are conveyed to the side lower portions of the box covers. According to the packaging production line for the push-and-pull cover type packaging box, for the special-shaped structure of the push-and-pull cover type packaging box, the box cover is positioned in the direction perpendicular to the conveying direction through the stop belt arranged on the conveying line; and through cooperation of the stopping back and the flexible stopping part, positioning of the box cover in the conveying direction is achieved, and positioning preparation is made in advance for product packaging and covering. Meanwhile, the cover pushing mechanism is provided with a pushing plate and a protruding part, so that the cover pushing accuracy and the cover pushing efficiency can be guaranteed, and meanwhile, the box cover in the box cover bin can be effectively prevented from falling and being stuck.

Description

Technical Field

[0001] The utility model relates to the technical field of product packaging equipment, in particular to a packaging production line for push-pull cover type packaging boxes. Background Art

[0002] like Figure 1 As shown, the push-pull lid packaging box is a commonly used packaging box, which is opened and closed by moving the lid and the box body towards each other. Figure 1 (shown in a) and the box cover ( Figure 1 The packaging box can be opened by pulling it in two directions (as shown in b); when closing, it is necessary to push the lid toward the box body, the box body toward the lid, or both in opposite directions at the same time. In the closed state, the flange a1 at the opening of the box body a is inserted into the side groove b1 of the box lid b, and the raised buckle on the flange a1 of the box body a is snapped into the buckle on the side groove b1 of the box lid b. During the packaging process, the flange a1 of the separated box body needs to be aligned with the side groove b1 of the box lid before the packaging box can be closed. In addition, the thickness of the box lid is only 1 to 2 mm ( Figure 1 The side height is about 5 to 6 mm ( Figure 1 Therefore, the effective surface is relatively small during packaging. Moreover, since the box cover and the box body are tightly matched, the positioning operation must be very precise. Therefore, most of the prior art uses manual packaging. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a packaging production line for push-pull lid packaging boxes, including a conveyor line arranged on the packaging production line for conveying packaging boxes, a box pushing mechanism for pushing the box body of the packaging box onto the conveyor line, and a lid installing mechanism for fixing the box cover above the conveyor line and pushing the box body into the box cover to complete the packaging when the box body is conveyed to the side and bottom of the box cover.

[0004] On the basis of the above scheme, the cover-installing mechanism includes a transverse fixing part for fixing the suction cup, a rotating cylinder for driving the transverse fixing part to rotate so that the suction cup rotates between a cover-sucking position for sucking up the box cover and an assembly position for assembling the box cover to the box body, and a lifting cylinder for driving the transverse fixing part to move up and down so that the suction cup at the cover-sucking position sucks the box cover and at the same time the suction cup at the assembly position carries the box cover to be assembled on the moving box body.

[0005] Based on the above scheme, stop backs for positioning the packaging box body are arranged at fixed intervals on the conveyor line, and a positioning part is provided above the conveyor line for flexibly stopping the packaging box body when the packaging box body passes by so that the packaging box body rests on the stop back and continues to be conveyed forward.

[0006] On the basis of the above solution, a stop belt is provided on the side of the conveyor line for stopping the box body pushed onto the conveyor line by the box pushing mechanism.

[0007] Based on the above solution, the positioning portion includes a flexible stop portion for stopping the box body and a fixing portion for fixing the flexible stop portion; in use, the flexible stop portion extends downwardly from the side close to the box body to below the upper horizontal surface of the box body.

[0008] Based on the above solution, the flexible stopping portion is a rubber sheet or a brush.

[0009] On the basis of the above solution, it also includes a cover pushing mechanism for pushing the box cover in the box cover bin to the cover suction position.

[0010] On the basis of the above solution, the cover pushing mechanism includes a push plate for pushing the box cover and a push rod for driving the push plate to perform reciprocating motion.

[0011] On the basis of the above solution, a protrusion is provided on the upper portion of the push plate for vibrating the box covers stacked in the box cover bin when the push plate moves.

[0012] The present invention's packaging production line for push-pull lid packaging boxes addresses the unusual structure of push-pull lid packaging boxes by positioning the lid perpendicular to the conveying direction via a stop belt installed on the conveyor line. The stop back cooperates with the flexible stop portion to achieve positioning of the lid in the conveying direction, preparing for product packaging and lid installation. Furthermore, the lid-pushing mechanism, through the provision of a push plate and raised portion, ensures accuracy and efficiency in lid-pushing, while effectively preventing the lid from falling and getting stuck within the lid compartment. The lid-installing mechanism also allows the lid to be lifted up during installation, preparing for the next installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic structural diagram of the push-pull lid packaging box described in this application;

[0015] Figure 2 This is a three-dimensional structural diagram of the packaging production line in Example 1 of the present application (excluding the assembly line);

[0016] Figure 3 for Figure 2Schematic diagram of the enlarged structure of part A;

[0017] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B;

[0018] Figure 5 This is a structural diagram of the capping mechanism in the packaging production line of Example 1 of the present application;

[0019] Figure 6 This is a schematic diagram of the structure of the packaging production line in Example 1 of the present application from a top view (excluding the robot);

[0020] Figure 7 for Figure 2 Schematic diagram of the enlarged structure of part C;

[0021] Figure 8 for Figure 3 Schematic diagram of the enlarged structure of part D;

[0022] Figure 9 This is a schematic diagram of the structure of the chain plate in the packaging production line of Example 1 of the present application;

[0023] Figure 10 This is a schematic structural diagram of the cover pushing mechanism in the packaging production line of Example 1 of the present application;

[0024] Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure along the BB direction;

[0025] Figure 12 for Figure 11 Schematic diagram of the enlarged structure of part A;

[0026] Figure 13 for Figure 11 Schematic diagram of the enlarged structure of part B. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 2As shown, the utility model provides a packaging production line for push-pull lid packaging boxes, comprising a conveyor line 1 provided on the packaging production line for conveying packaging boxes; a box pushing mechanism 2 for pushing the box body of the packaging box onto the conveyor line 1;

[0030] A lid-installing mechanism 3 is used to fix the box cover above the conveyor line 1 and to push the box body into the box cover to complete the packaging when the box body is conveyed to the side and bottom of the box cover.

[0031] Specifically, the conveyor line 1 is constantly moving forward ( Figure 2 The box body is moved forward along with the conveyor line 1. After that, the robot arm puts the product to be packaged into the box body. When the product is installed, the box body continues to move forward along with the conveyor line 1. When it moves to the lower side of the box cover fixed on the mounting mechanism 3, the flange a1 of the box body is aligned with the side groove b1 of the box cover. The box body continues to move forward along with the conveyor line 1, and the flange a1 is inserted into the side groove b1 of the box cover, and the raised buckle on the flange a1 of the box body a is snapped into the buckle on the side groove b1 of the box cover b, and the covering process is completed.

[0032] In the packaging production line of the present application, the positioning of the packaging box body is very critical. In order to fix the position of the box body pushed onto the conveyor line 1, as shown in FIG. Figure 8 As shown, the present application is provided with a stop belt 1-1 on the side of the conveyor line 1 for stopping the boxes pushed onto the conveyor line 1 by the box pushing mechanism 2. The provision of the stop belt 1-1 ensures that the boxes pushed onto the conveyor line 1 by the box pushing mechanism 2 rest against the stop belt 1-1, thereby maintaining a fixed position in the box pushing direction.

[0033] Specifically, such as Figure 9 As shown, the stop belt 1 - 1 is formed on both sides of the chain plate of the conveyor line 1 , that is, the two sides of the chain plate are high and the middle part is low, and the low part is just placed into the box body.

[0034] In addition to the positioning of the box pushing direction, the positioning of the box body along the conveying line direction is also very critical. For this purpose, this application provides a specific implementation method, such as Figure 3 and 4 As shown, the conveyor line 1 is provided with stop backs 1-2 for positioning the packaging box body at fixed intervals (specifically, the stop backs 1-2 are provided on the chain plate of the conveyor line 1), and a positioning part 4 is provided above the conveyor line 1 for flexibly stopping the packaging box body when the packaging box body passes by so that the packaging box body rests on the stop back 1-2 and continues to be conveyed forward.

[0035] The use of the stop back 1-2 and the positioning part 4 enables the boxes leaning on the stop belt 1-1 to be conveyed forward at the same position on the conveyor line 1, thus preparing for positioning for the next step of product boxing and capping.

[0036] As a specific implementation scheme, Figure 3 As shown, the positioning portion 4 includes a flexible stop portion 4-1 for stopping the box body and a fixing portion 4-2 for fixing the flexible stop portion 4-1; in use, the flexible stop portion 4-1 extends downward from one side of the box body to below the upper horizontal plane of the box body.

[0037] Specifically, when the box body resting on the stop belt 1-1 hits the flexible stop portion 4-1, the flexible stop portion 4-1 blocks the box body from moving forward, thereby keeping the box body stationary relative to the conveyor line 1. When the stop back 1-2 provided on the conveyor line 1 hits the box body, it gives the box body a forward thrust, causing it to pass through the stop of the flexible stop portion 4-1. The box body that has passed through the flexible stop portion 4-1 is now completely positioned on the conveyor line 1.

[0038] Specifically, the flexible stopping portion 4 - 1 may be made of a rubber sheet or a brush.

[0039] like Figure 4 and Figure 5 As shown, the cover-installing mechanism 3 includes a transverse fixing part 3-2 with suction cups 3-1 fixed at both ends, a rotating cylinder 3-3 for driving the transverse fixing part 3-2 to rotate so that the suction cup 3-1 can rotate between a cover-sucking position for sucking up the box cover and an assembly position for assembling the box cover to the box body, and a lifting cylinder 3-4 for driving the transverse fixing part 3-2 to move up and down so that the suction cup 3-1 at the cover-sucking position sucks the box cover and at the same time the suction cup 3-1 at the assembly position can be assembled with the box cover to the moving box body.

[0040] Specifically, the cover suction position refers to the position where the box cover is placed before packaging, that is, Figure 4 The position shown in b, at this position, the suction cup 3-1 will suck up the box cover, and then the lifting cylinder 3-4 will drive it to rise, and then the rotating cylinder 3-3 will rotate 180 degrees, driving it to rotate above the conveyor line 1, that is, the assembly position ( Figure 4 position shown in a).

[0041] The function of the lifting cylinder 3-4 is to make the suction cup 3-1 at the cover suction position suck the box cover and at the same time make the suction cup 3-1 at the assembly position carry the box cover to be assembled on the moving box body. Figure 4In the state shown, the lifting cylinder 3-4 drives the transverse fixing part 3-2 to move downward. At this time, the suction cup at the cover suction position (position b) presses down on the surface of the box cover so that the suction cup 3-1 sucks the box cover. At the same time, the suction cup 3-1 at the assembly position presses down, so that the front end of the box cover without a side groove rests on the flange a1 of the box body, so that the side groove b1 of the box cover naturally aligns with the flange a1 of the box body moving in the direction of the box cover, and the raised buckle on the flange a1 of the box body a is locked into the buckle on the side groove b1 of the box cover b, so that the box cover is firmly assembled to the box body. After being assembled to the box body, the suction cup 3-1 at the assembly position is released, and the box cover and the box body are pushed forward by the stopper 1-2, completing the cover installation action. Afterwards, the lifting cylinder 3-4 drives the transverse fixing part 3-2 upward again, raises the suction cup 3-1, and the rotating cylinder 3-3 rotates 180° to enter the next cover installation process.

[0042] Based on the above technical solution, in order to facilitate the placement of the box cover in the cover suction position, such as Figure 2 and Figure 6 As shown, the packaging production line of the present application further comprises a cover pushing mechanism 5 for pushing the box covers in the box cover bin 7 to the cover sucking position.

[0043] Specifically, such as Figure 10 、 Figure 11 As shown, the cover pushing mechanism 5 includes a push plate 5-1 for pushing the box cover and a push rod 5-2 for driving the push plate 5-1 to do reciprocating motion.

[0044] like Figure 1 As shown, because the side wall thickness of the box lid is very thin, only 1 to 2 mm (the same thickness as the box lid), natural stacking usually cannot be arranged neatly. When placing the box lid in the box lid compartment 7, manual sorting will greatly reduce production efficiency. Therefore, natural stacking is usually adopted. This method can only make the overall direction of the box lid consistent, but it cannot achieve neat stacking. Therefore, there will be overlap between the box lids, which reduces the effective surface of the push plate on the side of the box lid. In order to ensure that only one box lid is pushed at a time. The present application provides a specific implementation scheme of the push plate 5-1. Specifically, the thickness of the push plate 5-1 is less than the overall thickness of the box lid. The overall thickness of the box lid refers to Figure 1 and Figure 13 Specifically, the thickness of the push plate 5-1 is one third to one half of the overall thickness of the box cover.

[0045] At the same time, since the box lids are not a regular structure, when they are placed in the box lid bin 7, they are not arranged in a regular up-down manner. Therefore, after the push plate 5-1 pushes out a box lid, the stacked box lids above may get stuck in the box lid bin 7, which will cause the box lid bin to be pushed empty the next time. In order to solve this technical problem, based on the above technical solution, as Figure 11 and Figure 12As shown, the upper portion of the push plate 5-1 is provided with a raised portion 5-3 for vibrating the stacked lids in the lid compartment 7 when the push plate 5-1 moves. The provision of the raised portion 5-3 can generate an up-and-down vibration on the entire stacked lids when the push plate 5-1 pushes the lowest lid, thereby preventing the stacked lids from getting stuck in the lid compartment 7 and being unable to fall.

[0046] The packaging method based on the above packaging production line has the following steps:

[0047] (1) The conveyor line 1 is turned on, and the box pushing mechanism 2 pushes the box body of the packaging box onto the conveyor line 1;

[0048] (2) The robot on the assembly line 10 puts the product into the packaging box;

[0049] (3) The lid-loading mechanism 3 fixes the box lid above the conveyor line 1. The box body containing the product on the conveyor line 1 continuously moves toward the box lid along the conveyor line 1. When it moves to the side and bottom of the box lid, the box body pushes into the box lid and the packaging is completed.

[0050] The manipulator described in step (2) is no longer shown in the figure. The assembly line 10 is used to convey the products to be packaged. The products are conveyed on the assembly line 10 and are loaded into the packaging box body by the manipulator.

[0051] As a specific implementation, in step (1), after the box pushing mechanism 2 pushes the packaging box body onto the conveyor line 1, the box body moves forward together with the conveyor line 1. When the box body hits the lower edge of the flexible stop part 4-1 of the positioning part 4, the flexible stop part 4-1 will prevent the box body from continuing to move forward, thereby keeping the box body stationary relative to the conveyor line 1; when the stop back 1-2 set on the conveyor line 1 hits the box body, it will give the box body a forward thrust, so that it passes through the stop of the flexible stop part 4-1; the box body that passes through the flexible stop part 4-1 now leans on the conveyor line 1 and continues to move forward.

[0052] Based on the above method, as a preferred embodiment, in step (1), when the box pushing mechanism 2 pushes the box body of the packaging box to the conveyor line 1, the box body is positioned in the pushing direction by the stop belt 1-1 provided on the side of the conveyor line 1;

[0053] The box body is positioned in two directions, ready for the next step of product boxing and lid installation.

[0054] As a specific embodiment, in step (3), the lifting cylinder 3-4 of the lid installation mechanism 3 drives the horizontal fixing portion 3-2 to move downward. At this time, the suction cup 3-1 located at the assembly position presses down, so that the edge groove of the box lid carried by the suction cup 3-1 is aligned with the flange of the box body moving in the direction of the box lid, thereby smoothly assembling the box lid to the box body. After the assembly is completed, the suction cup 3-1 at the assembly position is released, and the assembled box lid and box body are pushed forward by the stopper 1-2. Specifically, while the suction cup 3-1 located at the assembly position presses down, the suction cup 3-1 located at the lid suction position presses down on the surface of the box lid so that the suction cup 3-1 sucks the box lid.

[0055] When the assembly is completed, the lifting cylinder 3-4 drives the horizontal fixing part 3-2 to move upward, lifts the suction cup 3-1, and the rotating cylinder 3-3 rotates 180 degrees. At this time, the suction cup 3-1 rotated from the assembly position to the cover suction position does not carry the box cover; the suction cup 3-1 rotated from the cover suction position to the assembly position carries the box cover.

[0056] In step (3), when the sensor 8 disposed next to the assembly position detects that the packaging box body is about to move to the assembly position, the control system controls the lifting cylinder 3-4 of the lid installation mechanism 3 to drive the horizontal fixing portion 3-2 to move downward. The sensor and the control system are both conventional technical means for those skilled in the art. In addition, the timing of pushing the box by the box pushing mechanism 2 and the timing of pushing the lid by the lid pushing mechanism 5 are all controlled by the control system and will not be further described here.

[0057] Each embodiment in this specification is described in a related manner. Similar parts between the embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A packaging production line for push-pull lid packaging boxes, characterized in that: The invention comprises a conveyor line (1) provided on a packaging production line for conveying packaging boxes, a box pushing mechanism (2) for pushing the box body of the packaging box onto the conveyor line (1), and a cover mounting mechanism (3) for fixing the box cover above the conveyor line (1) and pushing the box body into the box cover to complete the packaging when the box body is conveyed to the side and below the box cover.

2. The packaging production line for push-pull lid packaging boxes according to claim 1, characterized in that: The cover-installing mechanism (3) comprises a transverse fixing portion (3-2) with suction cups (3-1) fixed at both ends, a rotating cylinder (3-3) for driving the transverse fixing portion (3-2) to rotate so that the suction cups (3-1) rotate between a cover-sucking position for sucking up the box cover and an assembly position for assembling the box cover to the box body, and a lifting cylinder (3-4) for driving the transverse fixing portion (3-2) to move up and down so that the suction cups (3-1) at the cover-sucking position suck the box cover and simultaneously the suction cups (3-1) at the assembly position carry the box cover to be assembled on the moving box body.

3. The packaging production line for push-pull lid packaging boxes according to claim 1, characterized in that: Stop backs (1-2) for positioning the packaging box body are arranged at fixed intervals on the conveyor line (1), and a positioning portion (4) is arranged above the conveyor line (1) for flexibly stopping the packaging box body when the packaging box body passes by so that the packaging box body rests on the stop backs (1-2) and continues to be conveyed forward.

4. The packaging production line for push-pull lid packaging boxes according to claim 1, characterized in that: A stop belt (1-1) is provided on the side of the conveyor line (1) for stopping the box body pushed onto the conveyor line (1) by the box pushing mechanism (2).

5. The packaging production line for push-pull lid packaging boxes according to claim 3, characterized in that: The positioning portion (4) comprises a flexible stop portion (4-1) for stopping the box body and a fixing portion (4-2) for fixing the flexible stop portion (4-1); in a use state, the flexible stop portion (4-1) extends downwardly from a side close to the box body to below the upper horizontal surface of the box body.

6. The packaging production line for push-pull lid packaging boxes according to any one of claims 1 to 5, characterized in that: It also comprises a cover pushing mechanism (5) for pushing the box cover in the box cover bin (7) to a cover sucking position.

7. The packaging production line for push-pull lid packaging boxes according to claim 6, characterized in that: The cover pushing mechanism (5) comprises a push plate (5-1) for pushing the box cover and a push rod (5-2) for driving the push plate (5-1) to perform reciprocating motion.

8. The packaging production line for push-pull lid packaging boxes according to claim 7, characterized in that: The upper part of the push plate (5-1) is provided with a protrusion (5-3) for vibrating the box covers stacked in the box cover bin (7) when the push plate (5-1) moves.

9. The packaging production line for push-pull lid packaging boxes according to claim 5, characterized in that: The flexible stopping part (4-1) is a rubber sheet or a brush.

10. The packaging production line for push-pull lid packaging boxes according to claim 7, characterized in that: The thickness of the push plate (5-1) is one third to one half of the overall thickness of the box cover.

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