A multi-station carton sealing mechanism

Abstract

The application discloses a multi-station paper box sealing mechanism, characterized by comprising a two-axis linear gantry, a mounting rack being detachably connected to the lower end of a Z-axis sliding table of the two-axis linear gantry through a connecting assembly, and a plurality of paper box sealing clamps being uniformly distributed on the mounting rack; the paper box sealing clamp comprises a base plate being uniformly hung below the mounting rack through a connecting frame, two suction cups being symmetrically arranged at the front end of the base plate and used for sucking one side of the upper cover of the paper box, a folding pressing plate being hingedly connected to the front side of the base plate, and a folding cylinder being arranged between the base plate and the folding pressing plate and used for driving the folding pressing plate to turn over to realize folding of the upper cover of the paper box; the folding pressing plate is L-shaped, pressure tongue cylinders are symmetrically arranged on the vertical plate at the front end of the bottom surface of the folding pressing plate, and the pressure tongue cylinders are used for pasting the front tongue of the upper cover coated with glue on the other side of the box body. The multi-station paper box sealing mechanism has the beneficial effects that automatic folding and sealing of the upper cover of a plurality of packaging paper boxes can be realized at the same time, the working efficiency is high, and accurate pressing of the glue point of the front tongue of the upper cover can be realized.

Description

Technical Field

[0001] This invention pertains to packaging machinery, and specifically relates to a multi-station paper box sealing mechanism. Background Technology

[0002] Packaging boxes are widely used for packaging various products, especially medical devices such as syringes. Figure 7 As shown, a common syringe packaging box has inner tongues 191 at both ends of the upper opening of the box body 19 and a top cover 192 with a front tongue 193 on one side. Before the product is inserted, the inner tongues 191 at both ends are folded inward to a horizontal state. When the product is inserted, it contacts the inner tongues 191 at both ends and is pressed into the box body. The inner tongues play a supporting and protective role for the product. Finally, the top cover 192 is folded inward to cover the upper opening of the box body. After the cover is closed, it is fixed to the front of the box body by the front tongue 193.

[0003] Currently, box-sealing machines on the market generally work well for cardboard boxes with small edges. They typically fold the box by swinging a lever or oscillating plate. However, this type of mechanism can only fold and seal the boxes one by one, resulting in low work efficiency. Furthermore, the front flap of the sealed box is glued to the front of the packaging box, making it difficult for end users to open the box and wasting glue. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-station carton sealing mechanism that can simultaneously realize the automatic folding and sealing of multiple packaging carton lids and has high working efficiency.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A multi-station paper box sealing mechanism includes a two-axis linear gantry. A mounting frame is detachably connected to the lower end of the Z-axis slide of the two-axis linear gantry via a connecting component. Multiple sealing clamps are evenly distributed on the mounting frame for simultaneously folding and sealing the top covers of multiple packaging paper boxes.

[0007] The sealing fixture includes a base plate evenly suspended below the mounting frame via a connecting frame. Two suction cups are symmetrically arranged at the front end of the base plate to hold one side of the top cover of the carton. A folding pressure plate is hinged to the front side of the base plate. A folding cylinder is provided between the base plate and the folding pressure plate to drive the folding pressure plate to flip and fold the top cover of the carton. The folding pressure plate is L-shaped and has tongue-pressing cylinders symmetrically arranged on the upright plate at the front end of the bottom of the folding pressure plate to stick the glued top cover tongue to the other side of the carton.

[0008] The mounting frame is composed of an upper plate, a lower plate, and two vertical plates fixed between the upper and lower plates. A grooved enclosure is fixedly fitted on the outside of the mounting frame for installing solenoid valves that control the action of each cylinder and the on / off state of the suction cup air pipe.

[0009] As a further preferred embodiment, the connecting assembly includes a connecting column and a connecting seat. The connecting column is fixed to the lower end of the Z-axis slide. The connecting seat consists of a connecting base plate and two connecting blocks symmetrically fixed to the connecting base plate. The lower end of the connecting column is a cube, which is inserted between the two connecting blocks and connected to each other by a thumb-type locking device, so as to facilitate the quick disassembly and replacement of the mounting bracket and the sealing clamp.

[0010] As a further preferred option, a locking plate is fixed at the lower end of the connecting column, and a pair of limiting blocks are provided between the two ends of the locking plate and the two connecting blocks to reduce the load on the thumb-type locking device.

[0011] As a further preferred embodiment, support arms are symmetrically fixed on both sides of the folding pressure plate. The folding pressure plate overlaps with the substrate through the support arms on both sides and is hinged to the substrate by pins and bearings.

[0012] As a further preferred option, the tongue-pressing cylinder is a bolt cylinder.

[0013] As a further preferred embodiment, a positioning plate is fixed at the front end of the substrate, and the suction cups are led out from the through holes on the positioning plate to abut against the surface of the box body on the top cover side of the positioning cardboard box.

[0014] The beneficial effects of this invention are:

[0015] 1. Because multiple sealing clamps are evenly distributed on the mounting frame, two suction cups symmetrically arranged at the front end of the base plate of each sealing clamp can be used to hold the surface of the box body on one side of the top cover of the carton; the folding cylinder arranged between the base plate and the folding pressure plate can drive the folding pressure plate to flip and fold the top cover of the carton; the tongue pressing cylinder symmetrically arranged on the front upright plate at the bottom of the folding pressure plate can stick the glued top cover tongue to the other side of the box body. Therefore, the automatic folding and sealing of the top covers of multiple packaging cartons can be realized at the same time, with high work efficiency.

[0016] 2. Because the front plate of the folding pressure plate is symmetrically equipped with pressure cylinders, the glued front tongue of the top cover can be pasted to the other side of the box body, so as to accurately press the glued point of the front tongue of the top cover. This can avoid the problem of the front tongue of the top cover of the cardboard box being pasted to the front of the packaging box, which would cause difficulties for the end user in opening the box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 yes Figure 1 The left view.

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 4 yes Figure 1 AA sectional view.

[0021] Figure 5 yes Figure 1 BB cross-sectional view.

[0022] Figure 6 This is a three-dimensional structural diagram of the present invention after removing the straight gantry.

[0023] Figure 7 This is a schematic diagram of a syringe packaging box according to the present invention.

[0024] In the diagram: 1. Two-axis linear gantry; 2. Connecting column; 3. Connecting seat; 301. Connecting base plate; 302. Connecting clip; 4. Mounting frame; 5. Connecting frame; 6. Sealing clamp; 7. Base plate; 8. Folding cylinder; 9. Folding pressure plate; 901. Vertical plate; 10. Tongue-pressing cylinder; 11. Suction cup; 12. Hinge seat; 13. Positioning plate; 14. Support arm; 15. Groove-shaped surrounding plate; 16. Thumb-type locking device; 17. Limiting clip; 18. Clip plate; 19. Box body; 191. Inner tongue; 192. Top cover; 193. Front tongue. Detailed Implementation

[0025] like Figures 1-6 As shown, the present invention relates to a multi-station paper box sealing mechanism, including a two-axis linear gantry 1, which is a two-axis electric slide with an X-axis and a Z-axis. A mounting frame 4 is detachably connected to the lower end of the Z-axis slide 102 of the two-axis linear gantry 1 via a connecting assembly. Multiple sealing clamps 6 are evenly distributed on the mounting frame 4. In this embodiment, four sealing clamps are used as an example to simultaneously fold and seal the top covers of multiple packaging paper boxes.

[0026] The connecting assembly includes a connecting post 2 and a connecting seat 3. The connecting post 2 is fixed to the lower end of the Z-axis slide by screws. The connecting seat 3 is composed of a connecting base plate 301 and two L-shaped connecting blocks 302 that are symmetrically fixed to the connecting base plate 301 by screws. A stepped groove is formed between the two connecting blocks 302. The lower end of the connecting post 2 is cubic in shape and is inserted between the two connecting blocks 302 and connected to each other by two symmetrically arranged thumb-shaped locking devices 16, so as to facilitate the quick disassembly and replacement of the mounting bracket 4 and the sealing clamp 6.

[0027] The lower end of the connecting post 2 is inserted into the stepped slot. A locking plate 18 is fixed at the lower end of the connecting post 2. A pair of limiting blocks 17 are fixed between the two ends of the locking plate 18 and the two connecting blocks 302. The pair of limiting blocks 17 are fixed on the connecting blocks 302 and the locking plate 18 respectively and are superimposed on each other, so that the lower end of the connecting post 2 is locked in the stepped slot by the locking plate 18 and the two pairs of limiting blocks 17, thereby reducing the load on the thumb-type locking device 16.

[0028] The mounting frame 4 is composed of an upper plate, a lower plate, and two vertical plates connected by screws between the upper and lower plates, wherein the length of the upper plate is shorter than that of the lower plate. A grooved enclosure 15 is fixedly fitted on the outside of the mounting frame 4 for installing solenoid valves that control the action of each cylinder and the on / off state of the suction cup air pipe.

[0029] The sealing clamp 6 includes a base plate 7 that is evenly suspended below the mounting frame 4 by screws through a connecting frame 5. Two suction cups 11 are symmetrically installed at the front end of the base plate 7, which are used to connect to an external air pipe and use negative pressure to suction the top cover of the carton. A folding pressure plate 9 is hinged to the front side of the base plate 7. Support arms 14 are symmetrically fixed on both sides of the folding pressure plate 9 by screws. The folding pressure plate 9 overlaps with the hinge seats 12 fixed at both ends of the base plate 7 through the support arms 14 on both sides and is hinged to the hinge seats 12 at both ends of the base plate 7 by pins and bearings, so that the folding pressure plate 9 is initially in a vertical state.

[0030] A folding cylinder 8 is provided between the substrate 7 and the folding pressure plate 9. The cylinder body and one end of the piston rod of the folding cylinder 8 are respectively hinged to the upper middle part of the substrate 7 and the folding pressure plate 9, and are used to drive the folding pressure plate 9 to flip and realize the folding of the top cover of the carton. The folding pressure plate 9 is L-shaped and two tongue-pressing cylinders 10 are symmetrically installed on the upright plate 901 at the front end of the bottom of the folding pressure plate 9. When the tongue-pressing cylinder 10 is activated, its piston rod can extend out from the through hole on the inner side of the upright plate 901, and is used to stick the glued top cover tongue to the other side of the box body.

[0031] The upright plate 901 and the folding pressure plate 9 are vertically connected by screws or are an integral structure. The pressure tongue cylinder 10 is a bolt cylinder. A positioning plate 13 is fixed to the front end of the base plate 7. The suction cups 11 are led out from the through holes on the positioning plate 13 and are used to abut against the surface of the top cover of the positioning cardboard box. The bottom surface of the folding pressure plate 9 is flush with the outer end surface of the positioning plate 13 in the initial state.

[0032] During operation, the sealing mechanism is mounted on the frame of the cartoning machine via the X-axis slide 101 of the two-axis linear gantry 1. When the packaging carton located in the forming mold moves along the conveyor belt to below the four sealing clamps 6, the Z-axis slide of the two-axis linear gantry 1 is controlled to start moving downward, driving the four sealing clamps 6 downward and attaching them to the outer side of the top cover of the corresponding carton. The suction cups 11 then use negative pressure to hold the top cover of the carton to the surface of the carton.

[0033] Then, control the folding cylinder 8 to start, push the folding pressure plate 9 to flip and fold the top cover of the carton until the folding pressure plate 9 flips to a horizontal state. At this time, the top cover of the carton covers the top of the box body and the glued top cover front tongue is pressed and folded to the other side of the box body by the vertical plate at the front end of the folding pressure plate 9.

[0034] Then, the control valve cylinder 10 is activated, pushing the adhesive dots on the front tongue of the upper cover to stick to the other side surface of the box, thus sealing the box; finally, the Z-axis slide of the two-axis linear gantry 1 is controlled to move upward, taking the sealed cardboard box out of the forming mold and sending it to the next process through the X-axis slide of the two-axis linear gantry 1.

[0035] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A multi-station paper box sealing mechanism, characterized in that: It includes a two-axis linear gantry, and a mounting frame is detachably connected to the lower end of the Z-axis slide of the two-axis linear gantry via a connecting component. Multiple sealing clamps are evenly distributed on the mounting frame for simultaneously folding and sealing the top covers of multiple packaging boxes. The sealing fixture includes a base plate evenly suspended below the mounting frame via a connecting frame. Two suction cups are symmetrically arranged at the front end of the base plate for holding the top cover of the cardboard box on one side. A folding pressure plate is hinged to the front side of the base plate, and a folding cylinder is provided between the base plate and the folding pressure plate for driving the folding pressure plate to flip and fold the top cover of the cardboard box. The folding pressure plate is L-shaped, and tongue-pressing cylinders are symmetrically arranged on the upright plate at the front end of the bottom of the folding pressure plate for attaching the glued top cover tongue to the other side of the box body. A positioning plate is fixed at the front end of the base plate, and the suction cups are led out from the through holes on the positioning plate for abutting against the surface of the top cover of the positioning cardboard box. The mounting frame is composed of an upper plate, a lower plate, and two vertical plates fixed between the upper and lower plates. A grooved enclosure is fixedly fitted on the outside of the mounting frame for installing solenoid valves that control the action of each cylinder and the on / off state of the suction cup air pipe.

2. The multi-station paper box sealing mechanism according to claim 1, characterized in that: The connecting assembly includes a connecting column and a connecting seat. The connecting column is fixed to the lower end of the Z-axis slide. The connecting seat consists of a connecting base plate and two connecting blocks symmetrically fixed to the connecting base plate. The lower end of the connecting column is a cube, which is inserted between the two connecting blocks and connected to each other by a thumb-type locking device, so as to facilitate the quick disassembly and replacement of the mounting bracket and the sealing clamp.

3. The multi-station paper box sealing mechanism according to claim 2, characterized in that: A locking plate is fixed at the lower end of the connecting column, and a pair of limiting blocks are provided between the two ends of the locking plate and the two connecting blocks to reduce the load on the thumb-type locking device.

4. The multi-station paper box sealing mechanism according to claim 1, characterized in that: Support arms are symmetrically fixed on both sides of the folding pressure plate. The folding pressure plate overlaps with the base plate through the support arms on both sides and is hinged to the base plate through pins and bearings.

5. A multi-station paper box sealing mechanism according to claim 1, characterized in that: The tongue-pressing cylinder is a bolt cylinder.

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