Belt track mechanism

Abstract

The utility model provides a belt track mechanism, which is characterized in that the interval length L between the bottom surfaces of belt tracks on two sides of a corner is greater than or equal to 20mm and less than or equal to 80mm, and the height H of a packing belt outlet of the adjacent belt track on the upstream of the corner is greater than or equal to 1.1 mm and less than or equal to 3.5 mm. According to the belt track mechanism, the problem that when a thin packing belt is used, the packing belt bulges inwards to form a corner in the belt feeding ending process, and the smoothness during belt withdrawing is influenced can be solved in the simplest mode, and the belt track mechanism has considerable adaptability to inconsistency of working conditions caused by part errors of the belt track mechanism, installation errors and uneven thickness of the packing belt, and is suitable for large-scale popularization and application. And normal use of the packer is ensured.

Description

Technical Field

[0001] The utility model relates to a belt track mechanism, which is a belt track mechanism in a baling machine. Background Art

[0002] A baler is a machine that uses strapping to tie items. The frame device guides and supports the strapping before it ties items. The frame device houses a belt track mechanism. This track mechanism includes a lower left belt track, a lower left corner, a left vertical belt track, an upper left corner, a top horizontal belt track, an upper right corner, a right vertical belt track, a lower right corner, and a lower right belt track, forming a rectangular belt track with a corner. The mechanism is located between the lower left and right belt tracks.

[0003] The lower left belt path, the left vertical belt path, the top horizontal belt path, the right vertical belt path and the lower right belt path are provided with openable and closable belt path doors facing the inner side of the rectangle. When the belt is transported and unwound, the belt door is pushed open by the recovered strapping tape and the strapping tape is tied tightly to the articles.

[0004] The strapping is fed forward by a tape feed mechanism located at the bottom of the frame. The feed mechanism includes a drive motor and a feed pulley assembly. The strapping route is as follows: the strapping tape passes through the mechanism, enters the lower left belt path, and then exits the lower right belt path and enters the mechanism. When the strapping tape completes a circle and the lead reaches the lead limit, it is sensed by a sensing device and the motor stops. The motor's rotation has inertia, so even when the motor stops, the feed pulley assembly will still rotate for a short time. When thick strapping tape is used, it has a certain hardness and will resist the lead limit. The strapping tape itself is not prone to wrinkling, and the feed pulley assembly will slip to avoid overfeeding. When the strapping tape is relatively thin, it is soft and will continue to be fed forward due to inertia. This can cause the strapping tape to bulge out at the corners, affecting the smoothness of the strapping during withdrawal. In severe cases, it can cause strapping failure. Utility Model Content

[0005] The purpose of this utility model is to provide a belt channel mechanism that can prevent the corners from bulging inwards during the feeding process of thin strapping tape, which would affect the smoothness of the strapping when it is unwound. To this end, this utility model adopts the following technical solutions:

[0006] A beltway mechanism comprises a lower left beltway, a lower left corner, a left vertical beltway, an upper left corner, a top horizontal beltway, an upper right corner, a right vertical beltway, a lower right corner and a lower right beltway connected in sequence, each beltway comprises a beltway bottom surface, each beltway is provided with an openable and closable beltway door facing the inner side of the belt path, the corner comprises a strapping belt turning guide bottom wall, the planar portion of the openable and closable beltway door constitutes an inner side supporting beltway wall of the strapping belt's belt path in the beltway mechanism, and is characterized in that the interval length L between the beltway bottom surfaces of the beltways on both sides of the corner is greater than or equal to 20 mm and less than or equal to 80 mm, and the strapping belt outlet height H of the adjacent beltway upstream of the corner is greater than or equal to 1.1 mm and less than or equal to 3.5 mm.

[0007] Furthermore, the interval length L is greater than or equal to 35 mm.

[0008] Furthermore, the interval length L is less than or equal to 70 mm.

[0009] Furthermore, the thickness of the strapping tape is T, in mm, and H / T is greater than or equal to 1.1 and less than or equal to 14.

[0010] Furthermore, L / T is greater than or equal to 20; L / T is less than or equal to 320. L / T is greater than or equal to 35; L / T is less than or equal to 280.

[0011] Furthermore, at the strapping belt entrance of the belt path adjacent to the downstream of the corner, the bottom surface of the belt path is slightly lower than the height of the strapping belt turning guide bottom wall located in front of it.

[0012] Furthermore, for the corner, the width of the strapping tape turning guide bottom wall at its inlet is wider than the width of the strapping tape turning guide bottom wall at its outlet, and the width of the strapping tape turning guide bottom wall at the corner outlet is narrower than the width of the belt path at its downstream belt path inlet.

[0013] Furthermore, part or all of the strapping belt turning guide bottom wall is formed by extending from the belt path bottom surface of the belt path.

[0014] Furthermore, the running direction of the strapping tape is to enter the belt path mechanism from the lower left belt path and pass through the belt path mechanism from the lower right belt path. At least the belt paths on both sides of the lower left corner and the belt paths on both sides of the upper left corner have an interval length L greater than or equal to 20 mm and less than or equal to 80 mm, and the outlet height H of the adjacent belt paths upstream of the corner is greater than or equal to 1.1 mm and less than or equal to 3.5 mm.

[0015] Due to the adoption of the technical solution of the present invention, the present invention can solve in the simplest way the problem that when using thin strapping tape, the strapping tape bulges out at the corner at the end of the tape feeding process, thereby affecting the smoothness of the tape withdrawal. The present invention can also have considerable adaptability to the inconsistency of working conditions caused by errors in the parts of the belt track mechanism, installation errors, and uneven thickness of the strapping tape, thereby ensuring the normal use of the strapping machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of an embodiment of the baling machine frame device provided by the utility model.

[0017] Figure 2 for Figure 1 Main view of the middle belt road mechanism.

[0018] Figure 3 A roadmap for threading the strapping tape.

[0019] Figure 4 For the general Figure 2 Magnified view of part A.

[0020] Figure 5 This is an enlarged schematic diagram of the corner.

[0021] Figure 6 Schematic diagram of the strapping outlet of the adjacent belt track upstream of the corner.

[0022] Figure 7 The present invention provides an exploded view of another embodiment of the belt track mechanism. DETAILED DESCRIPTION

[0023] Refer to the attached Figure 1-7The belt path mechanism provided by the present invention is a belt path mechanism in the frame device of the baling machine, including the lower left belt path 1, the lower left corner 2, the left vertical belt path 3, the upper left corner 4, the top horizontal belt path 5, the upper right corner 6, the right vertical belt path 7, the lower right corner 8 and the lower right belt path 9 connected in sequence, each belt path includes a belt path bottom surface 101, each belt path is provided with an openable and closable belt path door facing the inner side of the belt path, the openable and closable belt path door can be made of metal plates, and is rotatably connected to the fixed structure in the frame device through a hinge 104 with a return spring, each The corner includes a strapping guide bottom wall 103, the flat portion of the openable and closable belt channel door constitutes the inner support belt channel wall 102 of the strapping strap 200 in the belt channel mechanism. The belt channels on both sides of the corner have a spacing length L between their belt channel bottom surfaces 101 greater than or equal to 20 mm and less than or equal to 80 mm. The height H of the strapping strap outlet 300 of the belt channel upstream of the corner, that is, the spacing between the belt channel bottom surface 101 and the inner support belt channel wall 102 at the outlet 300, is greater than or equal to 1.1 mm and less than or equal to 3.5 mm. Thus, by coordinating the spacing length and the outlet height, the possibility of the strap bulging out of the inside of the corner due to inertia when the strapping stops can be reduced and prevented, while increasing the rigidity of the strap during the strapping process. Even in the case of slight bulging, the strapping wheel group can be prevented from slipping with the strapping strap 200 during the inertial rotation of the motor.

[0024] Furthermore, the interval length L is greater than or equal to 35 mm; the interval length L is less than or equal to 70 mm.

[0025] Furthermore, with the thickness of the strapping tape 200 being T in mm, H / T is greater than or equal to 1.1 and less than or equal to 14. L / T is greater than or equal to 20; L / T is less than or equal to 320. Furthermore, L / T is greater than or equal to 35; L / T is less than or equal to 280.

[0026] As shown in the figure, at the strapping entrance 500 of the belt path adjacent to the downstream corner, the belt path bottom surface 101 is slightly lower than the height of the strapping strap turning guide bottom wall 103 located in front of it, ensuring the smoothness of entering the entrance 500 and improving the inward pressure effect when opening the openable and closable belt path door when withdrawing the strap.

[0027] The upstream and downstream are based on the feeding direction of the strapping belt.

[0028] For the corner, the width of the strapping tape turning guide bottom wall 1032 at the inlet is wider than the width of the strapping tape turning guide bottom wall 1031 at the outlet, and the strapping tape turning guide bottom wall width 1031 at the corner outlet is narrower than the belt path width of the inlet 500.

[0029] Preferably, the running direction of the strapping belt is to enter the belt guide mechanism from the lower left belt guide 1 and pass through the belt guide mechanism from the lower right belt guide 8. At least the belt guides on both sides of the lower left corner 2 and the belt guides on both sides of the upper left corner 4, the interval length L between the inner supporting belt guide walls 102 adopts the above-mentioned scheme, and the outlet height H of the adjacent belt guides upstream of the corner, i.e., the lower left belt guide 1 and the left vertical belt guide 3, is greater than or equal to 1.1 mm and less than or equal to 3.5 mm.

[0030] Reference numeral 400 denotes an outer frame of the frame device of the baling machine.

[0031] Reference Figure 7 , the strapping belt turns to guide bottom wall 103 and is extended to form by the belt road bottom surface 101 of belt road. This can be that the strapping belt of one of them angle, two angles, three angles or four angles turns to guide bottom wall and adopts this scheme.

[0032] Unless otherwise specified, in this utility model, if there are terms such as "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial" and the like indicating orientations or positional relationships, they are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing orientations or positional relationships in this utility model are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, they can understand the specific meanings of the above terms in conjunction with the accompanying drawings and according to specific circumstances.

[0033] Unless otherwise specified or limited, the terms "disposed," "clamped," and "connected" in this utility model should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0034] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the field of the present invention are included in the protection scope of the present invention.

Claims

1. A beltway mechanism, comprising a lower left beltway, a lower left corner, a left vertical beltway, an upper left corner, a top transverse beltway, an upper right corner, a right vertical beltway, a lower right corner and a lower right beltway connected in sequence, each beltway comprising a beltway bottom surface, each beltway being provided with an openable and closable beltway door facing the inner side of a belt path, the corner comprising a strapping belt turning guide bottom wall, the flat portion of the openable and closable beltway door constituting an inner side supporting beltway wall of the strapping belt path in the beltway mechanism, characterized in that The interval length L between the bottom surfaces of the belt paths on both sides of the corner is greater than or equal to 20 mm and less than or equal to 80 mm, and the strapping tape outlet height H of the adjacent belt paths upstream of the corner is greater than or equal to 1.1 mm and less than or equal to 3.5 mm.

2. A belt track mechanism according to claim 1, characterized in that: The interval length L is greater than or equal to 35 mm.

3. A belt track mechanism according to claim 1 or 2, characterized in that: The interval length L is less than or equal to 70 mm.

4. A belt track mechanism according to claim 1 or 2, characterized in that: The thickness of the strapping tape is T, the unit is mm, and H / T is greater than or equal to 1.1 and less than or equal to 14.

5. A belt track mechanism according to claim 4, characterized in that: L / T is greater than or equal to 20; L / T is less than or equal to 320.

6. A belt track mechanism according to claim 4, characterized in that: L / T is greater than or equal to 35; L / T is less than or equal to 280.

7. A belt track mechanism according to claim 1, characterized in that: At the strapping belt entrance of the belt path adjacent to the downstream of the corner, the bottom surface of the belt path is slightly lower than the height of the strapping belt turning guide bottom wall located in front of it.

8. A belt track mechanism according to claim 1, characterized in that: For the corner, the width of the strapping tape turning guide bottom wall at its inlet is wider than the width of the strapping tape turning guide bottom wall at its outlet, and the width of the strapping tape turning guide bottom wall at the corner outlet is narrower than the width of the belt path at its downstream belt path inlet.

9. A belt track mechanism according to claim 1, characterized in that: Part or all of the strapping belt turning guide bottom wall is formed by extending the belt path bottom surface of the belt path.

10. A belt track mechanism according to claim 1, characterized in that: The running direction of the strapping tape is to enter the belt path mechanism from the lower left belt path and pass through the belt path mechanism from the lower right belt path. At least the belt paths on both sides of the lower left corner and the belt paths on both sides of the upper left corner have an interval length L greater than or equal to 20 mm and less than or equal to 80 mm, and the outlet height H of the adjacent belt paths upstream of the corner is greater than or equal to 1.1 mm and less than or equal to 3.5 mm.

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