Chain link pinch type line pressing device

Abstract

The utility model relates to the field of line pressing devices, in particular to a chain link pinch type line pressing device. The clamping and conveying mechanism comprises two groups of clamping and conveying linkage assemblies which are oppositely distributed up and down, each clamping and conveying linkage assembly comprises two chain wheels which are distributed side by side front and back and a chain which is arranged on the two chain wheels in a meshed and sleeved mode, each chain comprises a plurality of connecting chain links and a plurality of branch chain links, and the connecting chain links and the branch chain links are annularly and alternately distributed and sequentially hinged; the middle of a connecting chain link in the upper clamping and conveying linkage assembly is in a flat plate shape. The middle part of a connecting chain link in the lower clamping and conveying linkage assembly protrudes outwards; and the two groups of clamping and conveying linkage assemblies form a clamping and conveying line pressing channel between the upper connecting chain link and the lower connecting chain link. According to the paperboard line pressing device, line pressing treatment can be conducted on paperboards in the paperboard conveying process, the contact time is long, concave indentations are not prone to rebounding, the line pressing effect is good, and the overall cost is low.

Description

Technical Field

[0001] This utility model relates to the field of wire pressing devices, and in particular to a chain-link clamping wire pressing device. Background Technology

[0002] In the process of producing cardboard boxes, one step is to crimp the cardboard to facilitate folding along the crimped lines. Existing cardboard crimping machines require multiple rolling processes, that is, using various different rollers to roll the same crimp line.

[0003] Chinese Patent Publication No. CN112192894B discloses a cardboard creasing device, including at least one set of initial pressing mechanisms arranged sequentially along the movement direction of the cardboard for external creasing and internal creasing pre-pressing, and a shaping mechanism located behind the last set of initial pressing mechanisms for external creasing and internal creasing forming. The cardboard creasing device also includes an anti-warping mechanism, which is constructed at the outer side of the cardboard creasing. As the cardboard passes through the initial pressing mechanism and the shaping mechanism, the cardboard gradually passes through the anti-warping mechanism, solving the problems of cardboard creasing lines being too narrow, causing breakage during folding, or creasing lines being too wide, resulting in poor appearance and small volume of the formed carton.

[0004] However, the above technical solution has the following shortcomings: each crease on the cardboard requires multiple sets of rollers for rolling, resulting in high overall cost. Furthermore, the cardboard can only be creased when it is in contact with the outer circumference of the rollers, which results in a short contact time. After the contact is broken, the crease may rebound (the indentation depth becomes shallower), and the creased effect needs to be further improved. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a chain-link clamping creasing device that can creasing paperboard during the paperboard conveying process. It has a long contact time, the concave indentation is not easy to rebound, the creasing effect is good, and the overall cost is low.

[0006] The technical solution of this utility model is a chain-link clamping and pressing device, comprising two sets of clamping and pressing linkage components distributed vertically and horizontally. Each clamping and pressing linkage component includes two sprockets arranged side by side and a chain meshing on the two sprockets. The chain includes multiple connecting links and multiple sub-links, which are arranged in a ring and alternately and are hinged sequentially. The connecting links in the upper clamping and pressing linkage component have a flat plate shape in the middle, while the connecting links in the lower clamping and pressing linkage component protrude outward in the middle. The two sets of clamping and pressing linkage components form a clamping and pressing channel between the upper and lower connecting links.

[0007] Preferably, the connecting link in the upper clamping linkage assembly is a flat link, which includes a straight plate portion and two first connecting plate portions respectively connected to both ends of the straight plate portion, with the two first connecting plate portions being distributed opposite to each other. The connecting link in the lower clamping linkage assembly is a pressing link, which includes a V-shaped plate portion and two second connecting plate portions respectively connected to both ends of the V-shaped plate portion, with the two second connecting plate portions being distributed opposite to each other.

[0008] Preferably, the connecting link in the upper clamping linkage assembly is an oblique link, which includes an oblique plate portion and two third connecting plates respectively connected to both ends of the oblique plate portion. The two third connecting plates are staggered and hinged to both sides of two adjacent sub-links. The connecting link in the lower clamping linkage assembly is an oblique convex link, which includes an obliquely distributed V-shaped plate portion and two fourth connecting plates respectively connected to both ends of the V-shaped plate portion. The two fourth connecting plates are staggered and hinged to both sides of two adjacent sub-links.

[0009] Preferably, an additional connecting link is installed on each sub-link.

[0010] Preferably, a connecting piece is hinged between two adjacent chain segments.

[0011] Preferably, the outer end of the V-shaped plate is a pointed tip or a flat surface.

[0012] Preferably, it further includes a mounting sleeve integrally connected or detachably connected to the sprocket and a mounting shaft for mounting the mounting sleeve. The outer circumferential surface of the mounting shaft has a limiting groove distributed in a direction parallel to the central axis, and the inner circumferential surface of the mounting sleeve has a keyway that engages with the limiting groove. A key is installed at the limiting groove and the keyway.

[0013] Preferably, the mounting sleeve has a through hole facing the limiting groove, and a bolt that is threadedly connected to the key thread passes through the through hole.

[0014] Preferably, it further includes two movable plates and two connecting blocks respectively disposed at the two transverse ends of the movable plates. The outer periphery of the mounting sleeve has an annular groove distributed coaxially, and the connecting blocks extend into the annular groove.

[0015] Preferably, an intermediate sprocket is rotatably mounted on the movable plate. The size of the intermediate sprocket is smaller than that of the sprocket, and the distance from the central axis of the intermediate sprocket to the clamping and pressing channel is smaller than the distance from the central axis of the sprocket to the clamping and pressing channel.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention can use creasing chain links or oblique convex chain links to creasing the paperboard during the paperboard conveying process. Multiple creasing chain links or oblique convex chain links contact the paperboard in sequence, with a long contact time and a large range. The concave indentation is not easy to rebound and can be effectively maintained at the level after creasing. The creasing effect is good and the overall cost is low. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0018] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 3 A partial sectional view of the mounting sleeve mounted on the mounting shaft;

[0020] Figure 4 This is a schematic diagram of the structure when the present utility model is applied in an embodiment;

[0021] Figure 5 This is a schematic diagram of the structure of the crimping chain link;

[0022] Figure 6 This is a partial structural cross-sectional view of Embodiment 2 of this utility model.

[0023] Reference numerals in the attached drawings: 1. Sprocket; 2. Split link; 21. Connecting piece; 31. Flat link; 32. Pressed link; 33. Oblique link; 34. Oblique convex link; 4. Intermediate sprocket; 5. Mounting sleeve; 501. Through hole; 502. Annular groove; 6. Connecting block; 7. Moving plate; 8. Mounting shaft; 801. Limiting groove. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-5 As shown, this embodiment proposes a chain-link clamping creasing device, comprising two sets of clamping linkage components distributed vertically and horizontally. Each clamping linkage component includes two sprockets 1 arranged side-by-side and a chain meshing on the two sprockets 1. The chain includes multiple connecting links and multiple sub-links 2, each sub-link 2 having four hinge points arranged in a rectangular pattern. The multiple connecting links and multiple sub-links 2 are arranged in a circular alternating pattern and hinged sequentially, meaning each sub-link 2 is hinged to two adjacent connecting links. The connecting links in the upper clamping linkage component are flat links 31, each including a straight plate portion and two first connecting plates respectively connected to both ends of the straight plate portion. The two first connecting plates are distributed opposite each other and hinged to two adjacent sub-links 2. The straight plate portion clamps the cardboard, providing a large contact area with the cardboard below, facilitating the movement of the cardboard. The connecting link in the lower clamping linkage assembly is a creasing link 32. The creasing link 32 includes a V-shaped plate portion and two second connecting plates respectively connected to both ends of the V-shaped plate portion. The two second connecting plates are distributed opposite each other and are hinged to two adjacent sub-links 2. The outer end of the V-shaped plate portion is a pointed tip or a flat surface. The creasing link 32 can clamp and convey the cardboard during movement in cooperation with the flat link 31, and the V-shaped plate portion in the middle of the creasing link 32 is used to creasing the cardboard during conveying.

[0026] Two sets of clamping linkage components form a clamping and creasing channel between the flat chain link 31 and the creasing chain link 32. The cardboard passes through the clamping and creasing channel and is clamped and creasing by the flat chain link 31 and the creasing chain link 32.

[0027] This embodiment utilizes creasing chain links 32 to creasing the cardboard during the cardboard conveying process. The sprocket 1 in the upper clamping linkage assembly rotates in the opposite direction to the sprocket 1 in the lower clamping linkage assembly, and the two chains move in opposite directions. At the clamping creasing channel, the flat chain links 31 and creasing chain links 32 in both chains move in the same direction, creasing the cardboard during the clamping process. Multiple creasing chain links 32 sequentially contact the cardboard, resulting in a long contact time and a large contact area. The concave indentation is not easily rebounded and can be effectively maintained at the creasing level, resulting in good creasing effect and low overall cost.

[0028] Example 2

[0029] This embodiment proposes a chain-link clamping wire pressing device, such as... Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that the connecting link in the upper clamping linkage assembly is an oblique link 33. The oblique link 33 includes an oblique plate portion and two third connecting plates respectively connected to both ends of the oblique plate portion. The two third connecting plates are staggered and hinged to both sides of two adjacent sub-links 2, that is, one third connecting plate of the oblique link 33 is hinged to one side of a sub-link 2, and the other third connecting plate is hinged to the other side of the adjacent sub-link 2. The connecting link in the lower clamping linkage assembly is an oblique convex link 34. The oblique convex link 34 includes an obliquely distributed V-shaped plate portion and two fourth connecting plates respectively connected to both ends of the V-shaped plate portion. The two fourth connecting plates are staggered and hinged to both sides of two adjacent sub-links 2, and the V-shaped plate portion of the oblique convex link 34 can still be used to press the cardboard.

[0030] Furthermore, a connecting link is added to each sub-link 2. This connecting link is only connected to that sub-link 2 and not to adjacent sub-link 2. A total of multiple connecting links are added. These connecting links are distributed at intervals with the connecting links that hinge two sub-link 2, and the arrangement is consistent. This makes the distribution density of the oblique link 33 and the oblique convex link 34 greater than the distribution density of the flat link 31 and the pressure link 32 in Embodiment 1, which is more conducive to pressing out regular indentations.

[0031] To improve the reliability of the hinged connection of the chain structure, a connecting piece 21 is hinged between two adjacent chain links 2. The connecting piece 21 is located outside the oblique chain link 33 and the oblique convex chain link 34. The chain link 2, the connecting piece 21 and the oblique chain link 33 (or oblique convex chain link 34) share the hinge center axis, so that the chain can smoothly mesh and transmit power with the sprocket 1.

[0032] Example 3

[0033] like Figures 1-5 As shown, this embodiment of the chain-link clamping creasing device, compared to Embodiments 1 and 2, further includes a mounting sleeve 5 integrally connected to or detachably connected to the sprocket 1, and a mounting shaft 8 for mounting the mounting sleeve 5. The mounting sleeve 5 is fitted onto the mounting shaft 8, which is rotatably mounted on the outer frame and driven by a drive mechanism on the frame, thereby driving the mounting sleeve 5 and the sprocket 1 to rotate, and thus driving the chain to clamp and creasing the cardboard. The outer circumferential surface of the mounting shaft 8 has limiting grooves 801 distributed along a direction parallel to the central axis. The inner circumferential surface of the mounting sleeve 5 is provided with a keyway that engages with the limiting grooves 801, and keys are installed at the limiting grooves 801 and the keyway. The adjustment of the mounting sleeve 5 is divided into the following two methods:

[0034] 1. When the key is long, the key is directly fixed at the limiting groove 801, and the mounting sleeve 5 slides on the key through the key groove to achieve position adjustment.

[0035] 2. When the key is short, the mounting sleeve 5 has a through hole 501 facing the limiting groove 801. A bolt threaded to the key is inserted through the through hole 501. The mounting sleeve 5 slides on the limiting groove 801 via the key.

[0036] The chain-link clamping wire pressing device also includes two movable plates 7 and two connecting blocks 6 respectively disposed at the lateral ends of the movable plates 7. The lateral position of the movable plates 7 is adjusted by an external adjustment mechanism, such as an existing lead screw mechanism disposed on the outer frame, which enables the linear movement of the movable plates 7, thereby driving the mounting sleeves 5 to move through the connecting blocks 6. The connecting blocks 6 can also limit the movement of the mounting sleeves 5 during operation to prevent the mounting sleeves 5 from shifting. Specifically, the outer periphery of the mounting sleeves 5 has coaxially distributed annular grooves 502, and the connecting blocks 6 extend into the annular grooves 502. When adjusting the position of the mounting sleeves 5 and the clamping linkage component, by adjusting the position of one movable plate 7, the two connecting blocks 6 at both ends can be used to drive the two mounting sleeves 5 to move respectively, synchronously adjusting the two sprockets 1 in the clamping linkage component. This ensures that the two sprockets 1 are in a flush state after the clamping linkage component is adjusted, which is beneficial to the smooth meshing between the chain and the sprockets 1.

[0037] like Figure 1 As shown, a middle sprocket 4 is rotatably mounted on the movable plate 7. The size of the middle sprocket 4 is smaller than that of the sprocket 1, and the distance from the central axis of the middle sprocket 4 to the clamping and pressing channel is smaller than the distance from the central axis of the sprocket 1 to the clamping and pressing channel. For the lower area of ​​the upper chain and the upper area of ​​the lower chain, the addition of the middle sprocket 4 helps to ensure that the flat chain links 31 and pressing chain links 32 in these two areas are relatively straight, which is beneficial for neat pressing on the cardboard.

[0038] This embodiment can achieve synchronous adjustment of the clamping linkage component and the two mounting sleeves 5 along the mounting shaft 8, and can use the intermediate sprocket 4 to improve the straightness of the flat chain link 31 and the pressing chain link 32 moving to the clamping and pressing channel area, thereby improving the pressing regularity.

[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A chain-link clamping wire pressing device, characterized in that, It includes two sets of clamping linkage components distributed in opposite directions. Each clamping linkage component includes two sprockets (1) arranged side by side and a chain meshing on the two sprockets (1). The chain includes multiple connecting links and multiple sub-links (2). The multiple connecting links and multiple sub-links (2) are arranged in a ring and are hinged in sequence. The connecting links in the upper clamping linkage component are flat in the middle. The connecting links in the lower clamping linkage component protrude outward in the middle. The two sets of clamping linkage components form a clamping and pressing channel between the upper connecting links and the lower connecting links.

2. The chain-link clamping wire pressing device according to claim 1, characterized in that, The connecting link in the upper clamping linkage assembly is a flat link (31). The flat link (31) includes a straight plate part and two first connecting plate parts respectively connected to both ends of the straight plate part. The two first connecting plate parts are distributed opposite to each other. The connecting link in the lower clamping linkage assembly is a pressing link (32). The pressing link (32) includes a V-shaped plate part and two second connecting plate parts respectively connected to both ends of the V-shaped plate part. The two second connecting plate parts are distributed opposite to each other.

3. The chain-link clamping wire pressing device according to claim 1, characterized in that, The connecting link in the upper clamping linkage assembly is an oblique link (33). The oblique link (33) includes an oblique plate portion and two third connecting plates portion respectively connected to both ends of the oblique plate portion. The two third connecting plates portion are staggered and are respectively hinged to both sides of two adjacent sub-links (2). The connecting link in the lower clamping linkage assembly is an oblique convex link (34). The oblique convex link (34) includes an obliquely distributed V-shaped plate portion and two fourth connecting plates portion respectively connected to both ends of the V-shaped plate portion. The two fourth connecting plates portion are staggered and are respectively hinged to both sides of two adjacent sub-links (2).

4. The chain-link clamping wire pressing device according to claim 3, characterized in that, An additional connecting link is installed on each sub-link (2).

5. A chain-link clamping wire pressing device according to claim 4, characterized in that, A connecting piece (21) is hinged between two adjacent chain segments (2).

6. A chain-link clamping wire pressing device according to claim 2 or 3, characterized in that, The outer end of the V-shaped plate is either pointed or flat.

7. The chain-link clamping wire pressing device according to claim 1, characterized in that, It also includes a mounting sleeve (5) that is integrally or detachably connected to the sprocket (1) and a mounting shaft (8) for mounting the mounting sleeve (5). The outer circumferential surface of the mounting shaft (8) has a limiting groove (801) distributed in a direction parallel to the central axis. The inner circumferential surface of the mounting sleeve (5) has a keyway that connects with the limiting groove (801). A key is installed at the limiting groove (801) and the keyway.

8. A chain-link clamping wire pressing device according to claim 7, characterized in that, The mounting sleeve (5) has a through hole (501) facing the limiting groove (801), and a bolt that is threaded to the key is inserted through the through hole (501).

9. A chain-link clamping wire pressing device according to claim 7, characterized in that, It also includes two movable plates (7) and two connecting blocks (6) respectively set at the two transverse ends of the movable plates (7). The outer periphery of the mounting sleeve (5) has an annular groove (502) distributed coaxially, and the connecting block (6) extends into the annular groove (502).

10. A chain-link clamping wire pressing device according to claim 9, characterized in that, A middle sprocket (4) is rotatably mounted on the movable plate (7). The size of the middle sprocket (4) is smaller than that of the sprocket (1). The distance from the central axis of the middle sprocket (4) to the clamping and pressing channel is smaller than the distance from the central axis of the sprocket (1) to the clamping and pressing channel.

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