Cross beam structure

Abstract

The utility model discloses a cross beam structure which comprises a carton machine body and a cross beam, and sliding assemblies are arranged between the two ends of the cross beam and the carton machine body, so that the cross beam can reciprocate up and down relative to the carton machine body through the sliding assemblies. The sliding assembly comprises installation bases arranged at the two ends of the cross beam and a first transmission rod parallel to the cross beam, a cam set is arranged on the first transmission rod and eccentrically connected with the first transmission rod, the lower end of the cam set is connected with a push rod, the push rod is vertically arranged, and the other end of the push rod is connected with the installation bases. The cross beam can stably move up and down in a reciprocating manner.

Description

Technical Field

[0001] The utility model relates to the technical field of carton machines, in particular to a crossbeam structure. Background Art

[0002] Cartons are the most widely used packaging products, usually used as wrapping for goods or as outer protective layers for items. Cartons are formed by bending cardboard during production, and in order to make the carton completely closed, it is necessary to indent the cardboard to facilitate folding the cardboard to close the carton. The transverse grooving and indentation of the cardboard requires a transverse indentation assembly. Common transverse indentation assemblies include a crossbeam with a creasing knife installed on the crossbeam. Transmission structures are provided at both ends of the crossbeam, and synchronization is achieved through a transmission rod, thereby achieving up and down reciprocating translation of the crossbeam. The transmission structure usually adopts a sliding rail slider combination method, that is, a sliding method is used to achieve up and down reciprocating translation, and then a coupling and a transmission shaft are provided on the transmission rod to achieve synchronization. This method is not only complex in structure, but also makes the accuracy and stability of the up and down reciprocating translation of the crossbeam poor. Therefore, there is an urgent need for a crossbeam transmission structure with a simple structure and stable up and down translation. Utility Model Content

[0003] The purpose of the utility model is to provide a beam structure designed to solve the deficiencies of the above-mentioned technology.

[0004] The utility model designs a beam structure, including a carton machine body and a beam, a sliding assembly is provided between the two ends of the beam and the carton machine body, so that the beam can move back and forth up and down relative to the carton machine body through the sliding assembly, the sliding assembly includes a mounting seat arranged at both ends of the beam and a first transmission rod arranged parallel to the beam, a cam group is provided on the first transmission rod, the cam group is eccentrically connected to the first transmission rod, the lower end of the cam group is connected to a push rod, the push rod is vertically arranged and the other end is connected to the mounting seat.

[0005] Preferably, cam groups are provided at both ends of the first transmission rod, wherein one cam group is connected to a first driving member, and the first driving member includes a first motor, a transmission wheel and a transmission belt. The transmission wheels are respectively provided on the output shaft of the cam group and the first motor, and the two transmission wheels are connected by a transmission belt.

[0006] Further optimized, the sliding assembly includes a slide rail and a slider, the slide rail is arranged on the carton machine body and extends along the vertical direction, and the slider is arranged on the mounting seat and slides with the slide rail.

[0007] Further optimization is that the number of the sliding components is two, which are located on both sides of the mounting seat, and the push rod is connected to the mounting seat near the middle position.

[0008] Preferably, a creasing knife is provided on the crossbeam, and a lifting assembly is provided between the two ends of the creasing knife and the mounting seat, so that the creasing knife can move up and down relative to the crossbeam through the lifting assembly.

[0009] Further optimization, the lifting assembly includes a base body, a worm gear structure, a screw pair and a lifting block. The screw of the screw pair is arranged perpendicular to the extension direction of the beam. The screw is rotatably connected to the base body through the worm gear structure. The nut of the screw pair is connected to the lifting block, and the lifting block is connected to the indentation knife.

[0010] Further optimization is carried out, where one of the lifting assemblies also includes a second driving member, the second driving member includes a power assembly, the output end of the power assembly is connected to the corresponding worm gear structure, and the power assembly and the worm gear structure cooperate to promote the rotation of the screw, and the two lifting assemblies are also provided with a second transmission rod parallel to the crossbeam, and the worm gear structures of the two lifting assemblies are connected by the second transmission rod.

[0011] The technical effect of the utility model is that mounting seats are respectively fixed at both ends of the cross beam, and sliding components and cam structures are also provided at both ends of the cross beam, which are guided by the sliding components and driven by the cam structure. The cam structure includes a cam group and a push rod hinged on the cam group, and the convex part of the cam group is set downward, that is, the cam of the cam group is set upside down, and the push rod is set vertically, one end of the push rod is connected to the lower end of the cam group, and the other end is connected to the mounting seat. The cam groups at both ends of the cross beam are connected by a transmission rod, and the transmission rod is eccentrically connected to the cam group, and the push rod is driven up and down by the rotation of the cam group, and the push rod drives the mounting seat up and down, and the mounting seat is also guided by the sliding component, so that the cross beam can stably reciprocate up and down with the mounting seat, and the structure is simple and easy to implement; an indentation knife is provided at the bottom of the cross beam, and a lifting component is provided on the indentation knife. The lifting component includes a screw pair and a worm gear structure, so that the indentation knife can fine-tune the up and down height position relative to the cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall structural diagram of the utility model after removing the carton machine body;

[0013] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0015] Figure 4 This is another perspective view of the overall structure after removing the transmission rod;

[0016] Figure 5 yes Figure 4 Enlarged view of point C in the middle.

[0017] In the figure: 1. Crossbeam; 3. Mounting seat; 4. First transmission rod; 5. Cam group; 6. Push rod; 7. First motor; 8. Transmission wheel; 9. Transmission belt; 10. Slide rail; 11. Slider; 12. Indentation knife; 13. Base; 14. Screw; 15. Worm gear structure; 16. Screw pair; 17. Lifting block; 18. Power assembly; 19. Second transmission rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the 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 are within the scope of protection of the present invention.

[0019] The utility model includes a carton machine body 1 and a crossbeam 2. The crossbeam 2 is arranged horizontally. The carton machine body 1 is located at both ends of the crossbeam 2. Sliding components are provided between the ends of the crossbeam 2 and the carton machine body 1. The crossbeam 2 can move back and forth up and down relative to the carton machine body 1 through the sliding component. The sliding component includes a mounting seat 3. A mounting seat 3 is provided at each end of the crossbeam 2. The mounting seat 3 is fixed on the corresponding carton machine body 1. A cam structure is provided between the mounting seat 3 and the carton machine body 1. The cam structure includes a cam group 5 and a push rod 6. The cam group 5 is rotatably connected to the carton machine body 1. One end of the push rod 6 is hinged to the cam group 5, and the other end is connected to the mounting seat 3. It should be noted that the cam group 5 is arranged in an upside-down manner. One end of the push rod 6 is hinged to the lower end of the cam group 5, and the other end is connected to the mounting seat 3, that is, the push rod 6 is arranged vertically.

[0020] The two cam groups 5 are connected by a first transmission rod 4. The first transmission rod 4 is parallel to the crossbeam 2. That is, the mounting seat 3 is connected to the end of the corresponding first transmission rod 4 through a cam structure. One of the cam groups 5 is connected to a first driving member. In this embodiment, the first driving member includes a first motor 7, a transmission wheel 8, and a transmission belt 9. The transmission wheel 8 is respectively arranged on the rotating shaft of the cam group 5 and the output shaft of the first motor 7. The two transmission wheels 8 are connected by a transmission belt 9. The first motor 7 drives the cam group 5 to rotate, and the cam group 5 drives the mounting seat 3 to move up and down. The end of the first transmission rod 4 is rotatably connected to the cam group 5. The two are eccentrically connected. The first motor 7 drives the corresponding cam group 5 to rotate. The cam group 5 is transmitted to the other cam group 5 through the first transmission rod 4 to drive the rotation of the cam group 5, thereby achieving synchronous rotation of the two cam groups 5. Ultimately, the two mounting seats 3 are synchronously moved up and down through the rotation of the cam structure.

[0021] The transmission wheel 8 can be a gear or a sprocket, and the transmission belt 9 can be a belt or a chain belt accordingly.

[0022] In this embodiment, the sliding assembly includes a slide rail 10 and a slider 11. The slide rail 10 is arranged on the carton machine body 1 and extends in the vertical direction. The slider 11 is arranged on the mounting seat 3 and slides with the slide rail 10, so that the mounting seat 3 can slide back and forth along the slide rail 10 under the drive of the cam structure. The sliding assembly plays a guiding role for the mounting seat 3.

[0023] The crossbeam 2 is provided with a creasing knife 12 and a slotting knife. Both the creasing knife 12 and the slotting knife are arranged along the extension direction of the crossbeam 2. The slotting knife is slidably connected to the crossbeam 2 through a sliding structure. The sliding direction of the slotting knife is the same as the extension direction of the crossbeam 2. An avoidance groove is provided on the top of the slotting knife. The avoidance groove is arranged along the extension direction of the slotting knife. The creasing knife 12 is connected to the crossbeam 2 and extends into the avoidance groove. When the slotting knife moves back and forth along the creasing knife 12 driven by the sliding structure, the slotting knife slides along the crossbeam 2 to slot, and the creasing knife 12 moves up and down through the crossbeam 2 to indent. The creasing knife 12 is installed on the crossbeam 2, and a lifting assembly is provided between the two ends of the creasing knife 12 and the mounting seat 3. The creasing knife 12 moves up and down synchronously relative to the crossbeam 2 through the lifting assembly to achieve fine adjustment of the height position of the creasing knife 12 relative to the crossbeam 2.

[0024] Specifically, each lifting assembly includes a base 13, a worm gear structure 15, a screw pair 16 and a lifting block 17. The screw 14 of the screw pair 16 is arranged perpendicular to the extension direction of the beam 2. The worm gear structure 15 includes a turbine and a worm. In this embodiment, one of the lifting assemblies also includes a second driving member, which is a power assembly 18. An electric motor can be used. The output end of the power assembly 18 is connected to the turbine to drive the turbine to rotate. The turbine and the worm cooperate with each other, and the turbine drives the worm to rotate, thereby rotating the screw 14. The nut of the rod pair 16 is connected to the lifting block 17, and the screw rod 14 drives the nut to move up and down, and the nut drives the lifting block 17 to move. The lifting block 17 is connected to the indentation knife 12, so that the indentation knife 12 can move up and down, that is, the worm gear structure 15 and the screw rod pair 16 cooperate to drive the indentation knife 12 to move up and down. The screw rod pair 16 and the worm gear structure 15 cooperate to make the lifting block 17 move up and down with very high accuracy and transmission efficiency and can ensure the smooth movement, thereby realizing fine adjustment of the height position of the indentation knife 12 relative to the beam 2.

[0025] The two lifting assemblies are also provided with a second transmission rod 19 parallel to the crossbeam 2. The worm gear structures 15 of the two lifting assemblies are connected by the second transmission rod 19. One of the lifting assemblies is connected to the second driving member, and the second driving member drives the lifting assembly to perform lifting movement. The second driving member includes a power assembly 18. The power assembly 18 can be an electric motor. The output end of the power assembly 18 is connected to the corresponding worm gear structure 15. The power assembly 18 and the worm gear structure 15 cooperate to promote the rotation of the screw 14. The two lifting assemblies are also provided with a second transmission rod 19 parallel to the crossbeam 2. The worm gear structures 15 of the two lifting assemblies are connected by the second transmission rod 19, that is, through the second transmission rod 19, the other lifting assembly performs synchronous lifting movement.

[0026] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.

Claims

1. A beam structure, characterized in that: The invention comprises a carton machine body (1) and a crossbeam (2), wherein sliding components are provided between the two ends of the crossbeam (2) and the carton machine body (1), so that the crossbeam (2) can move back and forth up and down relative to the carton machine body (1) through the sliding components, and the sliding components comprise mounting seats (3) provided at the two ends of the crossbeam (2) and a first transmission rod (4) provided in parallel with the crossbeam (2), a cam group (5) is provided on the first transmission rod (4), the cam group (5) is eccentrically connected to the first transmission rod (4), and the lower end of the cam group (5) is connected to a push rod (6), and the push rod (6) is vertically provided and the other end is connected to the mounting seat (3).

2. A beam structure according to claim 1, characterized in that: Cam groups (5) are provided at both ends of the first transmission rod (4), wherein one cam group (5) is connected to a first driving member, the first driving member comprising a first motor (7), a transmission wheel (8) and a transmission belt (9), the transmission wheel (8) being respectively provided on the output shafts of the cam group (5) and the first motor (7), and the two transmission wheels (8) being connected by a transmission belt (9).

3. A beam structure according to claim 2, characterized in that: The sliding assembly comprises a slide rail (10) and a slider (11); the slide rail (10) is arranged on the carton machine body (1) and extends in a vertical direction; the slider (11) is arranged on the mounting seat (3) and slidably cooperates with the slide rail (10).

4. A beam structure according to claim 3, characterized in that: There are two sliding components, which are respectively located on both sides of the mounting seat (3), and the push rod (6) is connected to the mounting seat (3) near the middle position.

5. The beam structure according to claim 1, characterized in that: A creasing knife (12) is provided on the crossbeam (2), and a lifting assembly is provided between the two ends of the creasing knife (12) and the mounting seat (3), so that the creasing knife (12) can move up and down reciprocatingly relative to the crossbeam (2) through the lifting assembly.

6. The beam structure according to claim 5, characterized in that: The lifting assembly comprises a base (13), a worm gear structure (15), a screw pair (16) and a lifting block (17); the screw (14) of the screw pair (16) is arranged perpendicular to the extension direction of the crossbeam (2); the screw (14) is rotatably connected to the base (13) through the worm gear structure; the nut of the screw pair (16) is connected to the lifting block (17); and the lifting block (17) is connected to the indentation knife (12).

7. The beam structure according to claim 6, characterized in that: One of the lifting assemblies further includes a second driving member, the second driving member includes a power assembly (18), the output end of the power assembly (18) is connected to the corresponding worm gear structure (15), and the power assembly (18) and the worm gear structure cooperate to promote the rotation of the screw (14), and the two lifting assemblies are also provided with a second transmission rod (19) parallel to the crossbeam (2), and the worm gear structures (15) of the two lifting assemblies are connected by transmission via the second transmission rod (19).

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