Belt supporting mechanism for packing machine

Abstract

The utility model relates to the technical field of packaging equipment, in particular to a belt supporting mechanism for a packaging machine, which comprises two groups of belt supporting rods which are oppositely arranged, rotationally connected with a rack and arranged on two sides of a belt track; and the positioning mechanism is connected with the belt supporting rod and is used for positioning the rotation angle of the belt supporting rod. According to the strapping tape supporting mechanism, the rotating angle of the strapping tape supporting rod is positioned through the positioning mechanism, the opening angle of the strapping tape supporting rod can be adjusted according to the size of a strapping article, falling of the strapping tape is limited, and the strapping position is prevented from becoming poor when the strapping tape straps the article.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a strapping mechanism for a packing machine. Background Technology

[0002] A baling machine, also known as a strapping machine or bundling machine, is a machine that uses strapping tape to wrap around products or packages, then tightens it and connects the ends by heat welding or using buckles or other materials. Its function is to ensure that the strapping tape adheres tightly to the surface of the bundled goods, preventing the goods from scattering during transportation and storage due to loose strapping, while also ensuring neat and aesthetically pleasing bundling. Existing baling machines place the items on a worktable and pass them through a square door equipped with strapping tape. A motor on the square door rapidly pulls back the strapping tape, causing it to detach from the door and retract, thus securing the square-shaped items. However, the items being bundled vary in size, and for smaller items, the distance the strapping tape travels from the square door to the item is longer, making it prone to misalignment when it finally lands. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a strapping mechanism for a packing machine that can limit and straighten the strapping during the process of strapping detachment.

[0004] The purpose of this utility model is achieved in the following manner: a strapping mechanism for a packing machine, comprising:

[0005] Two sets of guide rods are arranged opposite each other and rotatably connected to the frame. The guide rods are located on both sides of the belt track.

[0006] A positioning mechanism, connected to the handrail, is used to position the rotation angle of the handrail.

[0007] The strapping mechanism of this utility model uses a positioning mechanism to position the rotation angle of the strapping rod. It can adjust the opening angle of the strapping rod according to the size of the bundled items, and limit the falling of the strapping strap to prevent the binding position from deteriorating when the strapping strap is used to bind the items.

[0008] As an optional solution to the technical solution of this utility model, the positioning mechanism includes:

[0009] Mounted base, for connection to the frame;

[0010] A locking gear is mounted on the fixed base, and the two support rods are rotatably connected to the center of the locking gear via a first connecting shaft.

[0011] A locking block is located inside the handrail and is slidably connected to the inner wall of the handrail.

[0012] A pushing component, connected to the locking block, is used to push the locking block to engage with the locking gear and lock the guide rod.

[0013] The positioning mechanism of this utility model engages with the locking gear through the locking block, thereby locking the arm lever at any angle. It is convenient and flexible to use and has a wide range of applications.

[0014] As an optional solution to the technical solution of this utility model, the driving component includes:

[0015] The force-adding rod is rotatably connected to the side wall of the support rod via a second connecting shaft;

[0016] A cam is located inside the support rod and is connected to the other end of the second connecting shaft;

[0017] The locking rod has one end connected to the locking block and the other end in contact with the cam.

[0018] The locking block is moved by rotating a cam, and the structure is simple and easy to operate.

[0019] As an optional solution to the technical solution of this utility model, the driving component further includes:

[0020] A fixing block is located inside the handrail and connected to the side wall of the handrail. The locking rod is slidably connected to the fixing block. This makes the movement of the handrail more stable.

[0021] As an optional solution of the present utility model, the end of the locking rod that contacts the cam is provided with a connecting block with a horizontal bottom surface. The lowest surface of the cam is a horizontal surface. When the locking block is in an unpushed state, the horizontal surface of the connecting block contacts the horizontal surface of the cam, resulting in a tighter contact and a more stable structure.

[0022] As an optional solution to the technical solution of this utility model, the driving component further includes:

[0023] A cam fixing seat is connected to the side wall of the guide rod, and the second connecting shaft is threadedly connected to the cam fixing seat.

[0024] The beneficial effects of this utility model are:

[0025] (1) The support mechanism of this utility model can position the rotation angle of the support rod through the positioning mechanism. It can adjust the opening angle of the support rod according to the size of the bundled items, limit the falling of the strap, and prevent the binding position from deteriorating when the strap is binding the items.

[0026] (2) The locking gear is engaged by the locking block, thereby locking the opening angle of the guide rod. It is convenient and flexible to use, has a wide range of applications, and is driven by a practical cam push mechanism. It is a pure mechanical structure with simple structure, good stability, and is not prone to failure. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the strapping mechanism of the baling machine of this utility model when it is closed;

[0029] Figure 2 This is a schematic diagram of the structure of the strapping mechanism of the packaging machine of this utility model when it is opened;

[0030] Figure 3 This is a schematic diagram of a single side of the strapping mechanism for the baling machine of this utility model;

[0031] Figure 4 This is a partial sectional view of a single handrail.

[0032] Figure label:

[0033] 1-Guide rod; 2-Positioning mechanism; 201-Fixed seat; 202-Locking gear; 203-Locking block; 204-Push assembly; 2041-Forcer rod; 2042-Cam; 2043-Locking rod; 2044-Second connecting shaft; 2045-Connecting block; 2046-Cam fixed seat; 205-First connecting shaft; 3-Frame; 4-Belt. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] like Figure 1-2 As shown, a strapping mechanism for a strapping machine includes two opposing strapping rods 1, rotatably connected to the machine frame. The two sets of strapping rods 1 are located on both sides of the strapping conveyor. When the strapping tape falls from the conveyor on both sides of the machine frame, it passes through the middle of the two sets of strapping rods 1 and lands under the bundled item. A positioning mechanism 2 is connected to the strapping rods 1 and is used to position the rotation angle of the strapping rods 1. This strapping mechanism, by positioning the rotation angle of the strapping rods 1 through the positioning mechanism 2, can adjust the opening angle of the strapping rods 1 according to the size of the bundled item, limiting the fall of the strapping tape and preventing deviation in the binding position when binding the item.

[0038] Specifically, such as Figure 3-4 As shown, the positioning mechanism 2 includes: a fixed base 201, a locking gear 202, a locking block 203, and a pushing assembly 204, wherein: the fixed base 201 is connected to the frame; the locking gear 202 is mounted on the fixed base 201, and two sets of support rods 1 are rotatably connected to the center of the locking gear 202 through a first connecting shaft 205; the locking block 203 is located inside the support rod 1 and is slidably connected to the inner wall of the support rod 1; the pushing assembly 204 is connected to the locking block 203 and is used to push the locking block 203 to engage with the locking gear 202 to lock the support rod 1. The positioning mechanism 2 engages with the locking gear 202 through the locking block 203, thereby locking the handrail 1 at any opening angle. It is convenient and flexible to use and has a wide range of applications. The two sets of handrails 1 can be respectively equipped with the positioning mechanism 2 to position the two sets of handrails 1. At this time, the first connecting shaft 205 is rotatably connected to the two sets of handrails 1. Of course, the two sets of handrails 1 can be equipped with one positioning mechanism 2, and the positioning angles of the two sets of handrails 1 are the same. At this time, the first connecting shaft 205 is fixedly connected to the two sets of handrails 1.

[0039] The pushing component 204 can be driven by a screw motor screw connected to the locking block 203, or by a cylinder for pushing and pulling. In this embodiment, the pushing component 204 adopts a cam structure, specifically including: a force-applying rod 2041, a cam 2042, and a locking rod 2043. The force-applying rod 2041 is rotatably connected to the side wall of the support rod 1 through a second connecting shaft 2044. The connection end between the second connecting shaft 2044 and the force-applying rod 2041 is a square structure. The cam 2042 is located inside the support rod 1 and is connected to the other end of the second connecting shaft 2044. One end of the locking rod 2043 is connected to the locking block 203, and the other end contacts the cam 2042.

[0040] In this embodiment, as Figure 4 As shown, the moving component 204 achieves the movement of the locking block 203 by rotating the cam 2042. The structure is simple, easy to operate, and not prone to failure.

[0041] To make the movement of the handrail 1 more stable, the pushing assembly 204 further includes: a fixing block 2044 disposed inside the handrail 1, the fixing block 2044 being connected to the side wall of the handrail 1, and a locking rod 2043 being slidably connected to the fixing block 2044.

[0042] As a further embodiment of this invention, the end of the locking rod 2043 that contacts the cam 2042 is provided with a connecting block 2045 whose bottom surface is horizontal. The lowest surface of the cam 2042 is horizontal. In this embodiment, the cam 2042 is semi-circular. When the locking block 203 is in an unpushed state, the horizontal surface of the connecting block 2045 contacts the horizontal surface of the cam 2042, resulting in tighter contact and a more stable structure.

[0043] In addition, the push assembly 204 also includes: a cam fixing seat 2046, which is connected to the side wall of the support rod 1. The second connecting shaft 2044 is threadedly connected to the cam fixing seat 2046. When the force rod 2041 rotates, it drives the cam 2042 to rotate, causing the cam 2042 to push the locking block 203 to move upward and engage with the locking gear 202, thereby locking the support rod 1.

[0044] When using the strapping mechanism of this utility model, the operator opens the strap rod 1 to the required position, then rotates the force-applying rod 2041. The force-applying rod 2041 drives the cam 2042 to rotate, and the arc surface of the cam 2042 lifts the locking block 203 to the locking gear 202, where it meshes with the locking gear 202, thereby fixing the force-applying rod 2041. When it is necessary to close the force-applying rod 2041, the force-applying rod 2041 is rotated, and the force-applying rod 2042 drives the cam 2042 to rotate, so that the horizontal surface of the cam 2042 contacts the connecting block 2045. The locking block 2045 descends, disengages from the locking gear 202, and pulls the force-applying rod 2044 back to its original position.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A strapping mechanism for a packing machine, characterized in that, include: Two sets of support rods (1) are arranged opposite to each other and rotatably connected to the frame (3). The support rods (1) are located on both sides of the belt track (4). The positioning mechanism (2) is connected to the handrail (1) and is used to position the rotation angle of the handrail (1); The positioning mechanism (2) includes: The mounting base (201) is connected to the frame (3); A locking gear (202) is provided on the fixed base (201), and the two support rods (1) are rotatably connected to the center of the locking gear (202) through the first connecting shaft (205); A locking block (203) is provided inside the handrail (1) and is slidably connected to the inner wall of the handrail (1); The push assembly (204) is connected to the locking block (203) and is used to push the locking block (203) to engage with the locking gear (202) to lock the guide rod (1).

2. The strapping mechanism for a packing machine according to claim 1, characterized in that, The actuating component (204) includes: The force-adding rod (2041) is rotatably connected to the side wall of the support rod (1) via the second connecting shaft (2044); A cam (2042) is located inside the support rod (1) and is connected to the other end of the second connecting shaft (2044); The locking rod (2043) is connected at one end to the locking block (203) and at the other end to the cam (2042).

3. The strapping mechanism for a packing machine according to claim 2, characterized in that, The actuation component (204) further includes: The fixing block (2047) is located inside the handrail (1) and is connected to the side wall of the handrail (1). The locking rod (2043) is slidably connected to the fixing block (2047).

4. The strapping mechanism for a packing machine according to claim 3, characterized in that, The locking rod (2043) has a connecting block (2045) with a horizontal bottom surface at one end that contacts the cam (2042). The lowest surface of the cam (2042) is a horizontal surface. When the locking block (203) is in an unpush state, the horizontal surface of the connecting block (2045) contacts the horizontal surface of the cam (2042).

5. A strapping mechanism for a packing machine according to claim 3, characterized in that, The actuation component (204) further includes: The cam fixing seat (2046) is connected to the side wall of the support rod (1), and the second connecting shaft (2044) is threadedly connected to the cam fixing seat (2046).

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