Anti-jamming shrink disc assembly

Abstract

The present application relates to the technical field of film packaging, and discloses a shrink disc assembly capable of preventing jamming, which comprises a disc body, a guide groove is arranged on the disc body, a folding push plate is arranged on one side of the disc body, a containing groove is arranged on the side of the folding push plate facing the disc body, an operation hole is further arranged on the folding push plate and communicates with the containing groove, a rolling piece is arranged in the guide groove, a quick-change piece comprises a box body and a ball pin, the box body is arranged in the containing groove, the ball pin is arranged on the box body, the movable end of the ball pin is clamped into the operation hole, and the ball pin communicates with the outside through the operation hole, and a fixing piece is rotationally connected with the rolling piece at the middle part, and the front end of the fixing piece is fixedly connected with the box body. The shrink disc assembly capable of preventing jamming greatly improves the problems of shrink disc jamming and high installation difficulty, and the setting of the quick-change piece makes it very convenient to replace the folding push plate of different specifications.

Description

Technical Field

[0001] This invention relates to the field of film packaging technology, and in particular to a shrink tray assembly for preventing jamming. Background Technology

[0002] After production, plastic film is generally stored in roll form. Before storage, to reduce deformation of the film roll edges and corners due to pressure, the edges and corners of the film roll are usually protected with paper covers. When sealing with paper covers, the edges of the paper caps inside the shrink wrap assembly are used to protect the corners of the film roll.

[0003] For example, the snap-fit ​​structure and packaging line disclosed in the utility model patent with patent number CN216805951U recently filed by the applicant, which uses a folding plate pusher to slide along the folding plate guide groove on the first clamping plate to make the protective side plate (paper cap) fold inward to cover the corners of the film roll and protect the film roll.

[0004] The problems with this structure during use include: 1. When the folding plate rotation driver is activated, and the folding plate push plate is driven to slide along the folding plate guide groove via the folding plate connecting rod, the folding plate push plate is prone to jamming; 2. The installation and fixing of the folding plate push plate is relatively complicated, and the replacement of the folding plate push plate requires complete disassembly and assembly, making the replacement operation complicated.

[0005] It is evident that the current shrink disc assembly (the assembly that enables the paper cap to fold inward) still has room for improvement. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the background art.

[0007] This invention provides an anti-jamming shrink disc assembly, comprising:

[0008] The disc body is provided with a guide groove;

[0009] A folding push plate is located on one side of the disc body. The side of the folding push plate facing the disc body is provided with a receiving groove, and the folding push plate is also provided with an operation hole communicating with the receiving groove.

[0010] A rolling element, wherein the rolling element is located within the guide groove;

[0011] A quick-change component, comprising a housing and a ball pin, wherein the housing is disposed within the receiving groove, the ball pin is disposed on the housing, the movable end of the ball pin is engaged in the operating hole and the ball pin communicates with the outside through the operating hole;

[0012] A fixing member, the middle part of which is rotatably connected to the rolling member, and the front end of which is fixedly connected to the box body.

[0013] The beneficial effects of the present invention are as follows: The anti-jamming shrink disc assembly of the present invention is configured with a fixing member, connecting rod, rolling member and quick-change member, which greatly simplifies the connection structure of the anti-jamming shrink disc assembly. In addition, by setting the rolling member in the guide groove, the sliding friction of the folding push plate when sliding along the guide groove is transformed into rolling friction, which greatly reduces the movement resistance of the folding push plate and greatly improves the problems of shrink disc jamming and difficult installation. Furthermore, the quick-change member makes it very convenient to replace folding push plates of different specifications.

[0014] As a sub-solution of the above technical solution, the rolling element is a bearing.

[0015] As some sub-solutions of the above technical solution, the anti-jamming shrink disc assembly further includes a front fixing plate, a rear fixing plate and a connecting shaft. The front fixing plate and the rear fixing plate are both fixedly connected to the folding push plate. The two ends of the connecting shaft are respectively fixedly connected to the front fixing plate and the rear fixing plate. The bearing is mounted on the connecting shaft. The fixing member presses the front fixing plate and the rear fixing plate tightly onto the box body.

[0016] As a sub-solution of the above technical solution, the outer wall of the bearing is provided with a first groove, and the inner wall of the guide groove matches the shape of the first groove.

[0017] As some sub-solutions of the above technical solution, the first groove includes a first conical surface and a second conical surface, the first conical surface and the second conical surface are inclined in opposite directions, and the first conical surface and the second conical surface form a first groove that is integrally "V" shaped.

[0018] As some sub-solutions of the above technical solution, the first groove further includes a cylindrical surface, which is located between the first conical surface and the second conical surface, and the two ends of the cylindrical surface are respectively connected to the first conical surface and the second conical surface.

[0019] As some sub-solutions of the above technical solution, the combination of the rolling element and the connecting shaft is called a rolling group, and the number of the rolling groups is four, and the four rolling groups are arranged in a rectangular shape.

[0020] As some sub-solutions of the above technical solution, the anti-jamming shrink disc assembly further includes a connecting rod, the fixing component includes a first screw and a second screw, the box body has a first screw hole on the side facing the guide groove, the first screw passes through the front fixing plate and the rear fixing plate and is threaded to the first screw hole, the first screw has a second screw hole on the side facing the second screw, the second screw is threaded to the second screw hole, and the connecting rod is located between the second screw and the first screw. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 A schematic diagram of an embodiment of the anti-jamming structure for the shrink disc assembly;

[0023] Figure 2 for Figure 1 A partial view of section AA in the middle;

[0024] Figure 3 A schematic diagram showing the structure behind the folding push plate, designed to prevent jamming in the shrink disc assembly;

[0025] Figure 4 for Figure 3 A magnified view of a section at point D;

[0026] Figure 5 for Figure 1 Cross-sectional view of BB;

[0027] Figure 6 for Figure 5 A magnified view of a section at point C.

[0028] In the attached diagram: 1-Disc body; 11-Guide groove; 111-Sliding surface;

[0029] 2- Folding push plate;

[0030] 3-Rolling element; 31-First conical surface; 32-Cylindrical surface; 33-Second conical surface;

[0031] 41-Front fixing plate; 42-Rear fixing plate; 43-Connecting shaft;

[0032] 5-Linkage;

[0033] 6-Quick-change part; 61-Box body; 62-Pellet pin;

[0034] 7-Fixing element; 71-First screw; 72-Second screw. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0037] In the description of this invention, "several" means an indefinite quantity, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features. The use of "and / or" throughout the text indicates three parallel solutions; for example, A and / or B indicates a solution satisfied by A, a solution satisfied by B, or a solution satisfied by both A and B.

[0038] In the description of this invention, if there is a short phrase containing multiple parallel features, the modifier in the phrase defines the closest feature. For example, "B, C, and E connected to D are set on A" means that B is set on A, E is connected to D, and C is not defined. However, modifiers indicating the relationship between features, such as "interval setting" or "circular arrangement," do not fall into this category. Modifiers preceded by "all" define all features in the short phrase. For example, "B, C, and D are all set on A" means that B, C, and D are all set on A. In statements where the subject is omitted, the omitted subject is the subject of the preceding statement; that is, "A has B and includes C" means that A has B and A includes C.

[0039] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0040] The following is combined with Figures 1 to 6 Embodiments of the present invention will be described.

[0041] This embodiment relates to an anti-jamming shrink disc assembly, which has the advantages of being easy to replace and not prone to jamming.

[0042] The anti-jamming retractable tray assembly includes: a tray body 1, a folding push plate 2, a rolling element 3, a quick-change element 6, and a fixing element 7; the tray body 1 is provided with a guide groove 11; the folding push plate 2 is located on one side of the tray body 1, and the side of the folding push plate 2 facing the tray body 1 is provided with a receiving groove, and the folding push plate 2 is also provided with an operating hole communicating with the receiving groove; the rolling element 3 is located in the guide groove 11; the quick-change element 6 includes a box body 61 and a ball pin 62, the box body 61 is disposed in the receiving groove, the ball pin 62 is disposed on the box body 61, the movable end of the ball pin 62 is engaged in the operating hole and the ball pin 62 communicates with the outside through the operating hole; the middle part of the fixing element 7 is rotatably connected to the rolling element 3, and the front end of the fixing element 7 is fixedly connected to the box body 61.

[0043] The anti-jamming shrink disc assembly of the present invention is configured with a fixing member 7 that connects to the connecting rod 5, the rolling member 3, and the quick-change member 6, which greatly simplifies the connection structure of the anti-jamming shrink disc assembly. In addition, by setting the rolling member 3 in the guide groove 11, the sliding friction of the folding push plate 2 when sliding along the guide groove 11 is transformed into rolling friction, which greatly reduces the movement resistance of the folding push plate 2 and greatly improves the problems of shrink disc jamming and difficult installation. Furthermore, the quick-change member 6 makes it very convenient to replace folding push plates 2 of different specifications.

[0044] When installing the shrink tray assembly, first place the rolling element 3 in the guide groove 11, then use the fixing element 7 to connect the rolling element 3 to the quick-change element 6, and fix the rolling element 3 and the quick-change element 6 together to the tray body 1. When installing the folding push plate 2, fold the receiving groove of the folding push plate 2 into the tray body 61, and push the movable end of the folding pin 62 into the operating hole. When the pin 62 reaches the operating hole, the movable end of the pin 62 extends into the operating hole under its own elastic force, so that the pin 62 is engaged with the folding push plate 2, that is, fix the folding push plate 2 to the tray body 61. When it is necessary to replace a different folding push plate 2, use a pin to push the pin 62 back into the operating hole. At this time, the folding push plate 2 is unlocked, and the folding push plate 2 can be slid out to complete the disassembly. The installation and disassembly of this shrink tray assembly are both relatively convenient.

[0045] Specifically, the rolling element 3 is a bearing. The bearing is a commonly used rolling element 3 available on the market, which has the advantages of being easy to obtain, having low cost, and high precision.

[0046] The anti-jamming shrink tray assembly further includes a front fixing plate 41, a rear fixing plate 42, and a connecting shaft 43. The front fixing plate 41 and the rear fixing plate 42 are both fixedly connected to the folding push plate 2. Both ends of the connecting shaft 43 are fixedly connected to the front fixing plate 41 and the rear fixing plate 42, respectively. The bearing is mounted on the connecting shaft 43, and the fixing member 7 presses the front fixing plate 41 and the rear fixing plate 42 tightly against the box body 61. The shrink tray assembly, with its front fixing plate 41, rear fixing plate 42, and connecting shaft 43, can conveniently support the rolling element 3.

[0047] The bearing has a first groove on its outer wall, and the inner wall of the guide groove 11 matches the shape of the first groove. The matching of the inner wall of the guide groove 11 with the shape of the first groove means that the guide groove 11 and the first groove can interlock, allowing the interior of the guide groove 11 to be engaged within the first groove. When the bearing slides along the guide groove 11, it is limited by the first groove and the guide groove 11. Specifically, a first protrusion corresponding to the first groove extends from the inner wall of the guide groove 11, and the first protrusion extends into the first groove. By providing a first groove on the outer wall of the bearing, and through the cooperation of the first groove with the corresponding first protrusion on the guide groove 11, lubrication can be maintained for a longer period of time under the constraint of the first protrusion during lubrication within the first groove.

[0048] Furthermore, the first groove includes a first conical surface 31 and a second conical surface 33, with the first and second conical surfaces 31 and 33 having opposite inclination directions, forming a first groove that is generally "V" shaped. The first groove forms a "V" shape by configuring the first and second conical surfaces 31 and 33, while the first protrusion on the guide groove 11 correspondingly forms a crater shape, with both side walls of the first protrusion inclined outwards. When installing the rolling element 3, the first and second conical surfaces 31 and 33 can also be used to position the rolling element 3 relative to the guide groove 11, allowing the rolling element 3 to adapt to the position of the sliding surface 111 on the guide groove 11 and slide along the connecting shaft 43, making installation more convenient.

[0049] The first groove also includes a cylindrical surface 32, which is located between the first conical surface 31 and the second conical surface 33. The two ends of the cylindrical surface 32 are connected to the first conical surface 31 and the second conical surface 33, respectively. The cylindrical surface 32 is also arranged between the first conical surface 31 and the second conical surface 33, which can increase the structural strength of the bearing.

[0050] The combination of the rolling element 3 and the connecting shaft 43 forms a rolling group, and there are four rolling groups arranged in a rectangular shape. Configuring multiple rolling groups means configuring multiple rolling elements 3. By configuring multiple rolling elements 3, there are more contact points when the folding push plate 2 slides along the guide groove 11, resulting in smoother movement.

[0051] The anti-jamming shrink disc assembly also includes a connecting rod 5. The fixing member 7 includes a first screw 71 and a second screw 72. The box body 61 has a first screw hole on the side facing the guide groove 11. The first screw 71 passes through the front fixing plate 41 and the rear fixing plate 42 and is threaded into the first screw hole. The first screw 71 has a second screw hole on the side facing the second screw 72. The second screw 72 is threaded into the second screw hole. The connecting rod 5 is located between the second screw 72 and the first screw 71. The first screw 71 passes through the front fixing plate 41 and the rear fixing plate 42 and is threaded into the first screw hole on the box body 61, so that the first screw 71 can lock the front fixing plate 41, the connecting shaft 43 and the rear fixing plate 42 onto the disc body 1 by locking the first screw 71 with the box body 61. The first screw 71 can quickly install the front fixing plate 41, the rear fixing plate 42, the connecting shaft 43 and the bearing. By providing a second screw hole at the head of the first screw 71, the connecting rod 5 can be restricted between the head of the first screw 71 and the head of the second screw 72 through the threaded connection of the second screw 72 and the second screw hole, so that the connecting rod 5 can be kept in a swingable state when mounted on the fixing member 7.

[0052] The operation of the anti-jamming shrink roll assembly is as follows: First, the external driver (not shown in the figure) drives the connecting rod 5 to swing. The connecting rod 5 is hinged to the second screw 72. The connecting rod 5 drives the front fixing plate 41, the rear fixing plate 42 and the connecting shaft 43 to slide along the guide groove 11 through the second screw 72 and the first screw 71. The rolling element 3, i.e. the bearing, which is rotatably set on the connecting shaft 43, also moves accordingly. At this time, the folding push handle, which is fixedly connected to the first screw 71, also swings accordingly. In this way, the paper cap, which is pre-placed inside the folding push plate 2, can be pushed inward by the folding push plate 2, thereby folding up the outer edge of the paper cap and protecting the corner of the film roll.

[0053] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. An anti-jamming shrink disc assembly, characterized in that: include: The disk body (1) is provided with a guide groove (11). Folding push plate (2), the folding push plate (2) is located on one side of the disc body (1), the folding push plate (2) is provided with a receiving groove on the side facing the disc body (1), and the folding push plate (2) is also provided with an operation hole communicating with the receiving groove; Rolling element (3), the rolling element (3) is located in the guide groove (11), and the rolling element (3) is a bearing; Quick-change component (6), the quick-change component (6) includes a box body (61) and a ball pin (62), the box body (61) is disposed in the receiving groove, the ball pin (62) is disposed on the box body (61), the movable end of the ball pin (62) is inserted into the operating hole and the ball pin (62) is connected to the outside through the operating hole; The fixing member (7) is rotatably connected to the rolling member (3) at its middle part, and the front end of the fixing member (7) is fixedly connected to the box body (61). The anti-jamming shrink disc assembly also includes a front fixing plate (41), a rear fixing plate (42), and a connecting shaft (43). The front fixing plate (41) and the rear fixing plate (42) are both fixedly connected to the folding push plate (2). The two ends of the connecting shaft (43) are respectively fixedly connected to the front fixing plate (41) and the rear fixing plate (42). The bearing is mounted on the connecting shaft (43). The fixing member (7) presses the front fixing plate (41) and the rear fixing plate (42) tightly onto the box body (61). The anti-jamming shrink disc assembly also includes a connecting rod (5). The fixing member (7) includes a first screw (71) and a second screw (72). The housing (61) has a first screw hole on the side facing the guide groove (11). The first screw (71) passes through the front fixing plate (41) and the rear fixing plate (42) and is threaded into the first screw hole. The first screw (71) has a second screw hole on the side facing the second screw (72). The second screw (72) is threaded into the second screw hole. The connecting rod (5) is located between the second screw (72) and the first screw (71). The movement of the anti-jamming shrink disc assembly... The process is as follows: First, the external driver drives the connecting rod (5) to swing. The connecting rod (5) is hinged to the second screw (72). The connecting rod (5) drives the front fixing plate (41), the rear fixing plate (42) and the connecting shaft (43) to slide along the guide groove (11) through the second screw (72) and the first screw (71). The rotating rolling element (3) on the connecting shaft (43), i.e. the bearing, also moves. At this time, the folding push handle fixedly connected to the first screw (71) also swings. In this way, the paper cap that is placed inside the folding push plate (2) can be pushed inward by the folding push plate (2) to fold up the outer edge of the paper cap and protect the corner of the film roll.

2. The anti-jamming shrink disc assembly according to claim 1, characterized in that: The bearing has a first groove on its outer wall, and the inner wall of the guide groove (11) matches the shape of the first groove.

3. The anti-jamming shrink disc assembly according to claim 2, characterized in that: The first groove includes a first conical surface (31) and a second conical surface (33), the first conical surface (31) and the second conical surface (33) are inclined in opposite directions, and the first conical surface (31) and the second conical surface (33) form a first groove that is generally "V" shaped.

4. The anti-jamming shrink disc assembly according to claim 3, characterized in that: The first groove also includes a cylindrical surface (32), which is located between the first conical surface (31) and the second conical surface (33). The two ends of the cylindrical surface (32) are respectively connected to the first conical surface (31) and the second conical surface (33).

5. The anti-jamming shrink disc assembly according to claim 1, characterized in that: The combination of the rolling element (3) and the connecting shaft (43) is called a rolling group, and the number of the rolling groups is four, and the four rolling groups are arranged in a rectangular shape.

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