Transverse grooving and creasing assembly of carton machine

Abstract

The utility model discloses a transverse grooving and creasing assembly of a carton machine. The roller is connected with the bracket; the at least one cutter shaft is connected to the bracket and is parallel to the roller; the grooving cutter is arranged on the periphery of the cutter shaft and is arranged in the axial direction of the cutter shaft; the creasing cutter holder comprises an upper creasing cutter holder and a lower creasing cutter holder which are distributed on the bracket in parallel, and the upper creasing cutter holder and the lower creasing cutter holder can do relative up-down translation action through an upper eccentric transmission structure and a lower eccentric transmission structure respectively; and the upper creasing knife and the lower creasing knife are respectively connected to the upper creasing knife holder and the lower creasing knife holder and do relative up-down translation motion along with the upper creasing knife holder and the lower creasing knife holder. The distance between the two cutter shafts can be adjusted, and therefore the requirement for grooving at different positions is met.

Description

Technical Field

[0001] The utility model relates to the technical field of carton machines, in particular to a transverse slotting and creasing component of a carton machine. Background Art

[0002] Cartons are the most widely used packaging products, usually used as wrapping materials for commodities or as outer protective materials for articles. Cartons are formed by bending cardboard during production, and in order to make the carton completely closed, several grooves need to be opened at the upper and lower ends of the cardboard to facilitate folding the cardboard to close the carton. The structure for slotting the cardboard is a slotting assembly, which usually consists of an upper knife shaft and a roller. The upper knife shaft is provided with a slotting knife, and the cardboard is slotted by rolling the upper knife shaft. There are two main slotting mechanisms on the market. One is a vertical slotting mechanism. The disadvantage of this slotting mechanism is that it cannot cooperate with horizontal indentation, and indentation and slotting cannot be completed on the same mechanism. The other is long knife slotting, which is driven by a driving device to move the long knife up and down to achieve slotting, but the disadvantage of this structure is that it is too inefficient compared to the rolling slotting method. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the above-mentioned technology and is designed to be a transverse slotting and creasing component for a carton machine.

[0004] The utility model designs a transverse slotting and creasing component of a carton machine, comprising a bracket; a roller connected to the bracket; at least one knife shaft connected to the bracket and arranged parallel to the roller; a slotting knife arranged on the outer periphery of the knife shaft and arranged along the axial direction of the knife shaft; a creasing knife seat, comprising an upper creasing knife seat and a lower creasing knife seat distributed in parallel on the bracket, and the upper creasing knife seat and the lower creasing knife seat can move up and down relatively; an upper creasing knife and a lower creasing knife are respectively connected to the upper creasing knife seat and the lower creasing knife seat, and the upper creasing knife and the lower creasing knife move up and down relatively.

[0005] Preferably, it further includes a slide rail, in which a slider is provided, and the slider is fixedly connected to the knife shaft. When the knife shaft moves, the slide rail limits the movement direction of the slider so that the knife shaft reciprocates along the slide rail with the slider.

[0006] Further preferably, a screw pair is provided on the bracket, a screw in the screw pair is arranged along the slide rail, and the screw pair is connected to a slider, so that the slider reciprocates along the slide rail under the drive of the screw pair, and the knife shaft reciprocates with the slider.

[0007] Preferably, the transmission structure includes a positioning part, a connecting part connected to the positioning part for sliding up and down, and a driving mechanism for driving the connecting part to slide, the upper indentation knife seat is connected to the connecting part, the lower indentation knife seat is connected to the positioning part, and the connecting part drives the upper indentation knife seat to move up and down along the positioning part

[0008] Further optimized, the driving mechanism includes a rotating shaft, a driving member for driving the rotating shaft to rotate, and an eccentric structure installed on the rotating shaft, the eccentric structure includes an eccentric wheel and a mounting portion fixed to the eccentric wheel and rotating with the eccentric wheel, and the mounting portion is movably connected to the connecting portion.

[0009] Further optimized, the transmission structures are symmetrically distributed on both sides or ends of the two creasing knife seats, and the two transmission structures synchronously drive the upper creasing knife seat to move up and down.

[0010] Preferably, the outer wall surface of the cutter shaft is provided with at least one axial groove or hole arranged along the circumference of the cutter shaft, and the number of the groove cutters is multiple, and the multiple groove cutters are arranged at intervals in the axial groove or hole.

[0011] Preferably, the groove cutter comprises a base and a blade located on the base, the base is installed in the axial groove or hole, and the bottom surface shape of the base is matched with the bottom wall shape of the axial groove or hole.

[0012] Further optimization, the blade is in the shape of an elongated strip, fixedly connected to the base in an integral manner, and evenly distributed buffer blocks are provided on both sides of the blade.

[0013] Preferably, there are two knife shafts, and the two knife shafts are correspondingly arranged at two ends of the roller.

[0014] The technical effect of the utility model is that it includes a roller and a knife shaft above, a groove knife is arranged on the knife shaft, and the cardboard between the two is grooved by relative rotation of the knife shaft and the roller. One roller is adapted to have two knife shafts, and the two knife shafts are respectively arranged near the two end portions of the roller. The two knife shafts are slidably connected to the bracket through a transmission method combining a guide rail and a lead screw pair, so that the two knife shafts can move back and forth relative to each other, that is, the distance between the two knife shafts can be adjusted, thereby meeting the groove requirements at different positions, without stopping the machine to adjust the cardboard, and improving the groove efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a rear view of the overall structure of the utility model.

[0016] Figure 2 This is an axial view of the overall structure of the roller and the cutter shaft in the utility model;

[0017] Figure 3 This is a front view of the overall structure of the roller and the cutter shaft in the utility model;

[0018] Figure 4 It is a side view of the overall structure of the roller and the cutter shaft in the utility model;

[0019] Figure 5It is the overall structural axial view of the indentation knife holder and the indentation knife (when the upper indentation knife and the lower indentation knife are separated);

[0020] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0021] Figure 7 It is a side view of the overall structure of the creasing knife holder and the creasing knife;

[0022] Figure 8 It is a partial structural diagram of the upper indentation knife and the lower indentation knife.

[0023] In the figure: 1, upper indentation knife seat; 2, lower indentation knife seat; 11, upper indentation knife; 111, first knife seat; 112, baffle plate; 113, groove; 21, lower indentation knife; 211, second knife seat; 212, blade plate; 213, convex blade;

[0024] 30, roller; 31, knife shaft; 32, slotting knife; 321, base; 322, blade; 34, slide rail; 35, slider; 36, lead screw pair;

[0025] 37. Positioning part; 38. Connecting part; 381. Movable shaft; 382. Connecting piece; 39. Rotating shaft; 40. Driving piece; 41. Eccentric structure; 411. Eccentric wheel; 412. Mounting part; 42. Reducer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0027] The utility model comprises a bracket, on which a transverse slotting component and a transverse creasing knife structure are arranged. The transverse slotting component and the transverse creasing knife structure respectively perform transverse slotting and transverse creasing on cartons, and the two are arranged in parallel. In actual work, the transverse slotting can be performed first and then the transverse creasing, or the transverse creasing can be performed first and then the transverse slotting.

[0028] The horizontal indentation knife structure includes an indentation knife seat, which includes an upper indentation knife seat 1 and a lower indentation knife seat 2 which are horizontally distributed on the bracket and arranged parallel to each other. The upper indentation knife seat 1 and the lower indentation knife seat 2 are both square tube structures, and transmission structures are provided at both ends of the upper indentation knife seat 1;

[0029] Specifically, the upper indentation knife 11 and the lower indentation knife 21 are respectively arranged in parallel along the length of the upper indentation knife seat 1 and the lower indentation knife seat 2, the upper indentation knife 11 includes a first knife seat 111 connected and fixed to the upper indentation knife seat 1, the first knife seat 111 is a plate-shaped structure, and symmetrical baffles 112 are arranged on the front and rear sides of the first knife seat 111, the baffles 112 are fixed to the first knife seat 111 by fasteners, the baffles 112 extend along the length direction of the first knife seat 111, and the bottoms of the two baffles 112 exceed the bottom of the first knife seat 111, so that the opposite surfaces of the two baffles 112 and the top surface of the first knife seat 111 are formed. A groove 113 is formed to form a concave blade; the lower creasing knife 21 includes a second knife seat 211 connected to the lower creasing knife knife seat 2. The second knife seat 211 has the same structure as the first knife seat 111. A blade plate 212 is provided on one side of the second knife seat 211. The blade plate 212 is also a plate-shaped structure. The blade plate 212 is connected to one of the front and rear sides of the second knife seat 211 through a fastener. The top of the blade plate 212 is higher than the top of the second knife seat 211. A convex blade 213 is formed on the top of the blade plate 212. When the upper creasing knife 11 and the lower creasing knife 21 move relative to each other, the convex blade 213 is inserted into the concave blade to form a concave-convex fit, so that the cardboard located in the middle is indented.

[0030] The surfaces of the first tool seat 111 and the second tool seat 211 are both hollowed out, so that the first tool seat 111 and the second tool seat 211 are lighter.

[0031] The bracket is also provided with a transverse slotting assembly, which includes a roller 30 arranged on the bracket and a knife shaft 31 located above the roller 30. There is at least one knife shaft 31, and usually two knife shafts 31 are provided. The two knife shafts 31 are respectively arranged near the two ends of the roller 30. The knife shaft 31 and the roller 30 are coaxially arranged. A groove cutter 32 is axially provided on the outer periphery of the knife shaft 31. The cardboard is transmitted between the knife shaft 31 and the roller 30. The groove cutter 32 grooves the cardboard as the knife shaft 31 rotates. The two knife shafts 31 are combined by belts, gears and rotating shafts to achieve synchronous rotation. The outer wall of the roller 30 is made of elastic material, such as a soft rubber pad, so that the groove cutter 32 of the knife shaft 31 will not cut the surface of the roller 30 when grooving, and will not cause damage to the groove cutter 32 itself, and can also stably convey the cardboard, or the roller 30 is a rubber roller.

[0032] In this embodiment, the roller 30 is a long roller with a relatively long length, and the blade shaft 31 is an axial roller 30 with a relatively small length.

[0033] A bracket is provided above the knife shaft 31, and the bracket is provided with an axial slide rail 34, and a slider 35 is slidably matched on the slide rail 34. A screw pair 36 is also provided on the bracket, and the screw in the screw pair 36 is set along the slide rail 34. The nut in the screw pair 36 is connected to the slider 35, so that the slider 35 can reciprocate along the slide rail 34 under the drive of the screw pair 36, and the knife shaft 31 is rotatably connected to the slider 35 and reciprocates with the slider 35, so that the two knife shafts 31 can reciprocate relative to each other. In this embodiment, the number of slide rails 34 and screw pairs 36 are both one, and the two sliders 35 are slidably matched to the same slide rail 34 and screw pair 36. The screw in the screw pair 36 is a left-right rotating screw, so that the two knife shafts 31 can move relative to or oppositely with the corresponding sliders 35.

[0034] There are two slide rails 34, and accordingly, there are two sliders 35 and two lead screw pairs 36, which are arranged one by one with the two knife shafts 31. The two slide rails 34 are coaxially arranged in parallel on the bracket, and the lead screws in the lead screw pair 36 are also coaxially arranged in parallel. Since there are two lead screw pairs 36, the two slide rails 35 correspond to the lead screw pair 36 separately, so the lead screw in the lead screw pair 36 can be a common single-head lead screw, so that the two slide rails 35 can be controlled separately through the corresponding slide rails 34 and lead screw pair 36, so that the two knife shafts 31 can be translated at the same time or moved separately, which is very flexible. In addition, the driving device that drives the lead screw, knife shaft 31 and roller 30 to rotate is a conventional belt gear transmission structure, which will not be repeated here.

[0035] An axial groove or hole is provided on the surface of the knife shaft 31, and positioning holes are provided at both ends of the axial groove or hole. The groove cutter 32 is embedded in the axial groove or hole and fixed by the positioning holes. It should be noted that the groove cutter 32 includes a base 321 and a blade 322 located on the base 321. The base 321 is a plate-like structure and one side is a concave arc surface adapted to the arc circumferential surface of the knife shaft 31. The blade 322 is installed on the other side of the base 321. The base 321 is installed in the axial groove or hole and forms a limit. The base 321 is provided with mounting holes on both sides of the blade 322. Fasteners are installed in the mounting holes to realize that the groove cutter 32 is installed on the axial groove or hole, thereby realizing that the groove cutter 32 can be detachably connected to the knife shaft 31.

[0036] The blade 322 is a long strip structure, and its blade path can be a U-shape with one end open, or a rectangle with one end open, or a straight strip, etc.

[0037] In this embodiment, there are multiple axial grooves or holes, and they are distributed in a circular array along the outer circumference of the knife shaft 31. The groove cutters 32 are arranged one by one corresponding to the axial grooves or holes, that is, there are multiple groove cutters 32, which are evenly distributed on the circumferential surface of the knife shaft 31. When the knife shaft 31 rolls, evenly spaced grooves can be opened on the cardboard.

[0038] The knife shaft 31 is rotatably connected to the bracket through a belt gear transmission structure, and is driven to rotate by a driving device, so that the two knife shafts 31 rotate synchronously.

[0039] The transmission structure includes a positioning part 37, a connecting part 38 and a driving mechanism. The positioning part 37 is a fixed block structure fixed on the bracket. The positioning part 37 is provided with a vertical axial through hole. The connecting part 38 includes a movable shaft 381 and a connecting member 382. The movable shaft 381 is directly inserted into the axial through hole of the positioning part 37 and can slide up and down along the axial through hole. The connecting member 382 is also a block structure. The connecting member 382 is used to connect the upper indentation knife seat 1 and the movable shaft 381. The driving mechanism includes a driving member 40. The driving member 40 usually adopts a fine-tuning motor. The fine-tuning motor is a forward and reverse fine-tuning motor. A rotating shaft 39 is connected to the output shaft of the driving member 40. The rotating shaft 39 is parallel to the indentation knife seat, one end of the rotating shaft 39 is connected to the driving member 40, and the other end is connected to an eccentric structure 41, the eccentric structure 41 includes an eccentric wheel 411 and a mounting portion 412, an eccentric hole is provided in the center of the eccentric wheel 411, the rotating shaft 39 is passed through the eccentric hole, the mounting portion 412 is fixed on the eccentric wheel 411 and rotates with the eccentric wheel 411, in this embodiment, the eccentric wheel 411 and the mounting portion 412 adjust the motor to drive the rotating shaft 39 to rotate forward and reverse, the rotating shaft 39 drives the eccentric structure 41 to swing forward and reverse, the eccentric structure 41 drives the movable shaft 381 to move up and down along the positioning portion 37, and the movable shaft 381 drives the upper indentation knife seat 1 to move up and down. Since the driving member 40 is a fine-tuning motor, the fine-tuning motor is connected to the eccentric structure 41 through the rotating shaft 39, and the eccentric structure 41 is directly and movably connected to the movable shaft 381. The eccentric structure 41 as a whole is an eccentric bearing structure, and its eccentric swing transmission error is very small, which makes the rotation transmission of the fine-tuning motor more precise, and finally makes the upper indentation knife seat 1 move up and down more precisely.

[0040] In this embodiment, the connecting member 382 includes two symmetrical mounting blocks, and half mounting holes are provided on the opposite surfaces of the two mounting blocks. The two mounting holes are embraced on the movable shaft 381 to achieve fixation on the movable shaft 381. The two mounting blocks are combined and fixed by fasteners. The connecting member 382 moves up and down with the movable shaft 381. The purpose of this design is that the connecting member 382 can be detachably fixed to the movable shaft 381, and the position of the connecting member 382 on the movable shaft 381 is adjustable, that is, the height position of the upper indentation knife seat 1 can be adjusted through the connecting member 382, ​​so that the height position of the upper indentation knife seat 1 can be adjusted.

[0041] It should be noted that there are two driving devices, which are symmetrically distributed on both sides or ends of the creasing knife seat. Correspondingly, there are two fine-tuning motors, that is, driving components 40, which synchronously drive the creasing knife seat to move up and down.

[0042] Furthermore, the movable shaft 381 is axially distributed with a plurality of positioning portions 37, so that the movable shaft 381 can move up and down more stably. In this embodiment, each movable shaft 381 is provided with three positioning portions 37, one positioning portion 37 is located at the top of the movable shaft 381, and two positioning portions 37 are located at the bottom of the movable shaft 381. The bottom of the movable shaft 381 is connected to the eccentric structure 41, so that the eccentric structure 41 can drive the movable shaft 381 to move up and down more stably.

[0043] It should be noted that the driving member 40 is a fine-tuning motor, and a reducer 42 is provided between the rotating shaft 39 and the driving member 40. The reducer 42 is conventional technology, and the specific structure and working principle are not described in detail here.

[0044] The lead screw pair can also be replaced by other mechanical transmission structures, such as a gear-rack transmission method, a slide-rail transmission method, etc., which will not be elaborated here.

[0045] The bracket serves as the supporting structure of the entire assembly. The roller 1, the slide rail 5 and the lead screw pair 7 are directly connected to the bracket, and the knife shaft 2 is indirectly connected to the bracket through a transmission structure. The specific form is not repeated here.

[0046] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention. For example, the screw pair in the present invention is a common transmission structure, and it can also be other mechanical transmission connections. In addition, the terms "install", "connect" and "connect" should be understood in a broad sense, and can be mechanical connection or electrical connection, or the internal connection of two components, or direct connection. "Up", "down", "left" and "right" are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

Claims

1. The transverse slotting and creasing component of the carton machine is characterized by: include: Bracket; A roller (30) connected to the bracket; At least one knife shaft (31), connected to the bracket and arranged parallel to the roller (30); A groove cutter (32) is arranged on the outer periphery of the cutter shaft (31) and along the axial direction of the cutter shaft (31); The indentation knife seat comprises an upper indentation knife seat (1) and a lower indentation knife seat (2) which are parallelly distributed on a bracket, and the upper indentation knife seat (1) and the lower indentation knife seat (2) can move up and down relative to each other; The upper indentation knife (11) and the lower indentation knife (21) are connected to the upper indentation knife seat (1) and the lower indentation knife seat (2) respectively, and the upper indentation knife (11) and the lower indentation knife (21) perform relative up-and-down movements.

2. The carton machine transverse slotting and creasing assembly according to claim 1, characterized in that: The invention also comprises a slide rail (34), wherein a slider (35) is arranged in the slide rail (34), and the slider (35) is connected to the knife shaft (31). When the knife shaft (31) moves, the slide rail (34) limits the movement direction of the slider (35), so that the knife shaft (31) moves back and forth along the slide rail (34) along with the slider (35).

3. The carton machine transverse slotting and creasing assembly according to claim 2, characterized in that: The bracket (33) is also provided with a screw pair (36), the screw in the screw pair (36) is arranged along the slide rail (34), and the screw pair (36) is connected to the slider (35), so that the slider (35) moves back and forth along the slide rail (34) under the drive of the screw pair (36), and the knife shaft (31) moves back and forth along the slider (35).

4. The carton machine transverse slotting and creasing assembly according to claim 1, characterized in that: The upper indentation knife (11) and the lower indentation knife (21) are both connected to the upper indentation knife seat (1) and the lower indentation knife seat (2) via a transmission structure, wherein the transmission structure comprises a positioning portion (37), a connecting portion (38) connected to the positioning portion (37) in an up-and-down sliding manner, and a driving mechanism for driving the connecting portion (38) to slide, wherein the upper indentation knife seat (1) is connected to the connecting portion (38), and the lower indentation knife seat (2) is connected to the positioning portion (37), and the connecting portion (38) drives the upper indentation knife seat (1) to move up and down along the positioning portion (37).

5. The carton machine transverse slotting and creasing assembly according to claim 4, characterized in that: The driving mechanism comprises a rotating shaft (39), a driving member (40) for driving the rotating shaft (39) to rotate, and an eccentric structure (41) mounted on the rotating shaft (39); the eccentric structure (41) comprises an eccentric wheel (411) and a mounting portion (412) fixed to the eccentric wheel (411) and rotating with the eccentric wheel (411); the mounting portion (412) is movably connected to the connecting portion (38).

6. The carton machine transverse slotting and creasing assembly according to claim 4, characterized in that: The transmission structures are symmetrically distributed on both sides or ends of the two creasing knife seats, and the two transmission structures synchronously drive the upper creasing knife seat (1) to move up and down.

7. The carton machine transverse slotting and creasing assembly according to claim 1, characterized in that: The outer wall surface of the cutter shaft (31) is provided with at least one axial groove or hole arranged along the circumference of the cutter shaft (31), and the groove cutters (32) are multiple, and the multiple groove cutters (32) are arranged at intervals in the axial groove or hole.

8. The carton machine transverse slotting and creasing assembly according to claim 7, characterized in that: The groove cutter (32) comprises a base (321) and a blade (322) located on the base (321); the base (321) is installed in the axial groove or hole; the bottom surface shape of the base (321) is matched with the bottom wall shape of the axial groove or hole.

9. The carton machine transverse slotting and creasing assembly according to claim 8, characterized in that: The blade (322) is in the shape of an elongated strip and is fixedly connected to the base (321) in an integral manner. Evenly distributed buffer blocks are provided on both sides of the blade (322).

10. The carton machine transverse slotting and creasing assembly according to claim 1, characterized in that: There are two knife shafts (31), and the two knife shafts (31) are correspondingly arranged at two ends of the roller (30).

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