Two-section type lifting stand column structure

Abstract

The utility model relates to the technical field of winding machines, and discloses a two-section type lifting stand column structure which comprises a first stand column, a second stand column vertically arranged in the first stand column in a sliding mode and a film frame vertically connected with the second stand column in a sliding mode. A power mechanism is arranged at the bottom of the first stand column and comprises a screw rod, a screw seat in threaded connection with the screw rod and a power source for driving the screw rod to rotate, the screw seat is fixedly arranged on the second stand column, the screw rod penetrates through the screw seat in the sliding direction of the second stand column and extends into the second stand column, and a linkage mechanism is arranged between the screw rod and the film frame; when the lead screw drives the second stand column to ascend, the linkage mechanism drives the film frame to ascend synchronously, and when the lead screw drives the second stand column to descend, the linkage mechanism drives the film frame to descend synchronously. The lifting mechanism has the advantages of being small in overall occupied space and large in membrane frame lifting stroke.

Description

Technical Field

[0001] This utility model relates to the field of winding machine technology, and in particular to a two-section lifting column structure. Background Technology

[0002] A wrapping machine is a type of packaging equipment. The film frame is mounted on a column. During use, the film frame needs to be raised and lowered to meet the wrapping requirements of items of different heights. In existing wrapping machines, the film frame is raised and lowered along the column, so the overall height of the column is relatively large and it occupies a lot of space. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, this utility model provides a two-section lifting column structure with a compact structure, small overall column height, and large membrane frame lifting stroke.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A two-section lifting column structure includes a first column, a second column vertically slidably disposed within the first column, and a membrane frame vertically slidably connected to the second column. A power mechanism is provided at the bottom of the first column, comprising a lead screw, a lead screw seat threadedly connected to the lead screw, and a power source for driving the lead screw to rotate. The lead screw seat is fixed to the second column, and the lead screw extends into the second column through the lead screw seat along the sliding direction of the second column. A linkage mechanism is provided between the lead screw and the membrane frame. When the lead screw drives the second column to rise, the linkage mechanism drives the membrane frame to rise synchronously; when the lead screw drives the second column to fall, the linkage mechanism drives the membrane frame to fall synchronously.

[0006] By adopting the above technical solution: the lead screw drives the second column to rise and fall simultaneously, while the linkage mechanism drives the membrane frame to rise and fall synchronously, thereby increasing the stroke of the membrane frame; when the second column descends, the overall height is small, the space occupied is small, the structure is compact, and the handling and transfer are more convenient.

[0007] Preferably, the linkage mechanism includes a sleeve slidably mounted on the lead screw and a connecting seat connected to the membrane frame. The sleeve is rotatably connected to the second column and configured to rotate synchronously with the lead screw. The sleeve is threadedly connected to the connecting seat. The lead screw drives the lead seat and the second column to rise and fall, and simultaneously drives the sleeve to rotate synchronously. The sleeve, in turn, drives the membrane frame to rise and fall through the connecting seat. The overall structure is compact and stable.

[0008] Preferably, the sleeve is disposed inside the second column, the upper end of the sleeve is rotatably connected to the second column via a rotating seat, and the lower end of the sleeve is rotatably connected to the thread seat on the same axis.

[0009] Preferably, the surface of the lead screw is provided with grooves distributed parallel to the axis, and the inner wall of the sleeve is provided with a protrusion that slides and engages with the groove. The protrusion engages with the groove to achieve axial sliding and synchronous circumferential rotation between the sleeve and the lead screw.

[0010] Preferably, the bottom of the first column is provided with a mounting bracket, and the power source is disposed within the mounting bracket. The power source is configured as a geared motor. Placing the power source at the bottom of the first column lowers the overall center of gravity and improves stability.

[0011] Preferably, the first column has a U-shaped cross-section, a slide rail is provided on the side wall of the first column, the second column is disposed inside the first column, and a slider is provided on the side of the second column that is slidably connected to the slide rail.

[0012] Preferably, the two sides of the membrane frame are slidably connected to the second column via sliding seats, and a connecting frame is provided on the rear side of the membrane frame, the connecting frame being fixedly connected to the connecting seats.

[0013] Preferably, the second column is provided with a partition that passes between the membrane frame and the connecting frame.

[0014] Therefore, this utility model has the advantages of small overall space occupation and large membrane frame lifting stroke. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0016] Figure 2 for Figure 1 Rear view.

[0017] Figure 3 This is a schematic diagram showing the membrane frame separated from the second column.

[0018] Figure 4 for Figure 1 Exploded view. Detailed Implementation

[0019] To make the technical problem to be solved, the technical solution, and the beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model.

[0020] It should be understood that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly specifying the number of technical features indicated. Features specified as "first" or "second" may expressly or implicitly indicate that at least one of those features is included.

[0021] like Figures 1-4 The diagram shows a two-section lifting column structure, including a first column 10, a second column 20 vertically slidably disposed within the first column 10, and a membrane frame 30 vertically slidably connected to the second column 20. A power mechanism 4 is provided at the bottom of the first column 10. The power mechanism 4 includes a lead screw 40, a lead screw seat 41 threadedly connected to the lead screw 40, and a power source 42 driving the lead screw 40 to rotate. The lead screw seat 41 is fixed to the second column 20. The lead screw 40 extends into the second column 20 through the lead screw seat 41 along the sliding direction of the second column 20. A linkage mechanism 43 is provided between the lead screw 40 and the membrane frame 30. When the lead screw 40 drives the second column 20 to rise, the linkage mechanism 43 drives the membrane frame 30 to rise synchronously. When the lead screw 40 drives the second column 20 to fall, the linkage mechanism 43 drives the membrane frame 30 to fall synchronously.

[0022] Specifically, such as Figure 4 As shown, the linkage mechanism 43 includes a sleeve 430 slidably sleeved on the lead screw 40 and a connecting seat 431 connected to the membrane frame 30. The sleeve 430 is rotatably connected to the second column 20 and is configured to rotate synchronously with the lead screw 40. The sleeve 430 is threadedly connected to the connecting seat 431. The sleeve 430 is disposed inside the second column 20, and its upper end is rotatably connected to the second column 20 through a rotating seat 432. The lower end of the sleeve 430 is coaxially rotatably connected to the lead screw seat 41. The surface of the lead screw 40 is provided with grooves 400 distributed parallel to the axis, and the inner wall of the sleeve 430 is provided with a protrusion (not shown in the figure) that slides and engages with the grooves 400.

[0023] The bottom of the first column 10 is provided with a mounting bracket 50, and the power source 42 is disposed within the mounting bracket 50. The power source 42 is configured as a geared motor. In some embodiments, the geared motor is a right-angle geared motor, that is, the motor shaft is perpendicular to the output shaft, which further reduces the dimension in the height direction.

[0024] The first column 10 has a U-shaped cross-section and a slide rail 11 on its side wall. The second column 20 is disposed inside the first column 10, and a slider 21 that is slidably connected to the slide rail is provided on the side of the second column 20. The two sides of the membrane frame 30 are slidably connected to the second column 20 via sliding seats 31. A connecting frame 32 is provided on the rear side of the membrane frame 30, and the connecting frame 32 is fixedly connected to the connecting seat 431. A partition 22 is provided inside the second column 20, and the partition 22 passes through the space between the membrane frame 30 and the connecting frame 32.

[0025] Referring to the accompanying drawings, the principle of this utility model is as follows: The second column is located inside the first column, the membrane frame is slidably mounted on the second column, and the power mechanism is located within the mounting bracket 50 at the bottom of the first column. When the power source 42 (gear motor) drives the lead screw to rotate, the lead screw 40 drives the second column 20 to rise through the lead screw seat, and simultaneously drives the sleeve 430 to rotate synchronously. When the sleeve rotates, it drives the membrane frame 30 to rise through the connecting seat 431, greatly increasing the stroke of the membrane frame. Similarly, when the lead screw reverses, it can drive the membrane frame and the second column to descend. After the second column descends, the overall height is small and the space occupied is small. Moreover, since the power mechanism is located at the bottom of the first column, and the lead screw, sleeve, etc. are all located inside the second column, the overall structure is more compact and stable.

[0026] In the description of this utility model, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, and the other end are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the purpose of more clearly describing the technical solution of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0027] Although specific embodiments of the present invention are described in detail herein, they are given for illustrative purposes only and should not be construed as limiting the scope of the present invention. Various substitutions, alterations, and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A two-section lifting column structure, characterized in that, It includes a first column (10), a second column (20) that is vertically slidably disposed within the first column (10), and a membrane frame (30) that is vertically slidably connected to the second column (20). The bottom of the first column (10) is provided with a power mechanism (4). The power mechanism (4) includes a lead screw (40), a lead screw seat (41) threadedly connected to the lead screw (40), and a power source (42) for driving the lead screw (40) to rotate. The lead screw seat (41) is fixed on the second column (20). The lead screw (40) passes through the lead screw seat (41) and extends into the second column (20) along the sliding direction of the second column (20). A linkage mechanism (43) is provided between the lead screw (40) and the membrane frame (30). When the lead screw (40) drives the second column (20) to rise, the linkage mechanism (43) drives the membrane frame (30) to rise synchronously. When the lead screw (40) drives the second column (20) to fall, the linkage mechanism (43) drives the membrane frame (30) to fall synchronously.

2. The two-section lifting column structure according to claim 1, characterized in that, The linkage mechanism (43) includes a sleeve (430) slidably sleeved on the lead screw (40) and a connecting seat (431) connected to the membrane frame (30). The sleeve (430) is rotatably connected to the second column (20). The sleeve (430) is configured to rotate synchronously with the lead screw (40). The sleeve (430) is threadedly connected to the connecting seat (431).

3. The two-section lifting column structure according to claim 2, characterized in that, The sleeve (430) is disposed inside the second column (20). The upper end of the sleeve (430) is rotatably connected to the second column (20) through a rotating seat (432), and the lower end of the sleeve (430) is rotatably connected to the thread seat (41) on the same axis.

4. The two-section lifting column structure according to claim 2, characterized in that, The surface of the lead screw (40) is provided with a sliding groove (400) distributed parallel to the axis, and the inner wall of the sleeve (430) is provided with a protrusion that slides in cooperation with the sliding groove (400).

5. The two-section lifting column structure according to claim 1, characterized in that, The bottom of the first column (10) is provided with a mounting bracket (50), and the power source (42) is located inside the mounting bracket (50). The power source (42) is configured as a geared motor.

6. The two-section lifting column structure according to claim 1, characterized in that, The first column (10) has a U-shaped cross-section and a slide rail (11) is provided on the side wall of the first column (10). The second column (20) is located inside the first column (10) and a slider (21) is provided on the side of the second column (20) to slide in connection with the slide rail.

7. A two-section lifting column structure according to claim 2, characterized in that, The two sides of the membrane frame (30) are slidably connected to the second column (20) via sliding seats (31). A connecting frame (32) is provided on the rear side of the membrane frame (30), and the connecting frame (32) is fixedly connected to the connecting seat (431).

8. The two-section lifting column structure according to claim 7, characterized in that, The second column (20) is provided with a partition (22) that passes between the membrane frame (30) and the connecting frame (32).

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