Lifting film winding limiting device of film winding machine

Abstract

The utility model relates to a lifting film winding limiting device of a film winding machine. The lifting film winding limiting device comprises a supporting rod, a limiting block, a bolt I and a shifting piece. The supporting rod is vertically placed and fixed to the lifting table. A through hole I is formed in the limiting block, and the supporting rod penetrates through the through hole I and is in clearance fit with the through hole I; a threaded hole I is formed in the limiting block, one end of the threaded hole I is communicated with the outside, and the other end is communicated with the through hole I; the bolt I is in threaded connection with the threaded hole I and is used for controlling the connecting mode of the limiting block and the supporting rod; the shifting piece is horizontally placed and is fixedly connected with the limiting block; when the travel switch is horizontally placed, the lifting table moves upwards, the vertical projection of the travel switch is overlapped with the vertical projection of the shifting piece, and the maximum distance between the shifting piece and the travel switch is smaller than or equal to the lifting range of the lifting table; when the shifting piece touches the travel switch, the travel switch is changed from a horizontal state to a vertical state, and the lifting table is changed from upward movement to downward movement. The automatic reciprocating film winding device is simple in structure and realizes automatic reciprocating film winding action.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment and relates to a lifting and film-wrapping limiting device for a film-wrapping machine. Background Art

[0002] A film-wrapping machine is a special packaging machine for realizing mechanized film wrapping and is an essential packaging machine for some products that need moisture-proof and dust-proof during long-distance transportation or export. For some existing old-fashioned film-wrapping machines, the film lifting body needs to manually toggle the travel switch to make it descend and perform reciprocating movements, and it cannot well meet the packaging and film-wrapping requirements of products with different heights.

[0003] For example, Patent CN 202728602 U discloses a three-dimensional film-wrapping machine, which includes a film-wrapping machine column, a lifting groove, a film-wrapping machine base, a rotating disc, a sleeve rotating shaft, a guiding rotating shaft, and a rotating shaft support beam. The surface of the film-wrapping machine column is provided with a longitudinal lifting groove. The lifting groove is fixedly connected to the rotating shaft support beam. One sleeve rotating shaft and one guiding rotating shaft are fixedly connected to the outer end of the rotating shaft support beam. The surface of the film-wrapping machine base is provided with a rotating disc. This utility model can make the packaging and film-wrapping of large items more convenient and fast. The lifting groove provides height support for packaging different items, and the rotating disc provides rotating support for packaging items, greatly reducing the inconvenience brought by manual packaging and being not easily damaged. However, for the film lifting body of this patent, it needs to manually toggle the travel switch to make it descend and perform reciprocating movements, and it cannot well meet the packaging and film-wrapping requirements of products with different heights.

[0004] Therefore, it is of great significance to research a lifting and film-wrapping limiting device for a film-wrapping machine to solve the problems existing in the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art and provide a lifting and film-wrapping limiting device for a film-wrapping machine.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A lifting and winding film limiting device for a film winding machine. The film winding machine includes a base, a column main body, a lifting table, a travel switch, a lifting motor, and a stretching roller. The column main body and the lifting table are located on the base, and the lifting motor is located on the lifting table. The lifting motor is used to control the vertical movement of the lifting table and the distance from the base. The stretching roller is vertically fixed on the lifting table, and a winding film is sleeved on the stretching roller. The winding film is used to wind the products (the products include glass products, chemical fibers, auto parts, refractory materials, papermaking, chemicals, ceramic products, electronic products, etc.). The products are placed on a rotating disk. When the products rotate on the rotating disk, the winding film winds the products. The travel switch is arranged on the column and is used to control the forward and reverse rotation of the lifting motor. The lifting and winding film limiting device of the film winding machine includes a support rod, a limit block, bolt I, and a dial.

[0008] The support rod is placed vertically and fixed on the lifting table.

[0009] A through hole I is provided on the limit block. The support rod passes through the through hole I and has a clearance fit with the through hole I. A threaded hole I is provided on the limit block. One end of the threaded hole I communicates with the outside, and the other end communicates with the through hole I. Bolt I is threadedly connected to the threaded hole I. Bolt I is used to control the connection method between the limit block and the support rod. The connection methods include fixed connection and sliding connection. When bolt I presses the support rod against the inner wall of the through hole I, the limit block is fixedly connected to the support rod. When bolt I does not press the support rod against the inner wall of the through hole I, the limit block is slidably connected to the support rod.

[0010] The dial is placed horizontally and fixedly connected to the limit block.

[0011] When the travel switch is placed horizontally and the lifting table moves upward, the vertical projection of the travel switch overlaps with the vertical projection of the dial. The maximum distance between the dial and the travel switch is less than or equal to the lifting range of the lifting table, so as to ensure that the dial and the travel switch will definitely touch.

[0012] After the dial touches the travel switch, the travel switch changes from a horizontal state to a vertical state. At this time, the lifting motor rotates in the opposite direction, and the lifting table changes from moving upward to moving downward.

[0013] As a preferred technical solution:

[0014] For the lifting and winding film limiting device of a film winding machine as described above, the lifting and winding film limiting device of the film winding machine further includes a dial holder. The dial holder is fixed on the upper surface of the limit block. The dial is rotatably and fixedly connected to the side surface of the dial holder. When there is no need to limit the rising height of the lifting table, the dial is rotated so that when the travel switch is placed horizontally, the vertical projection of the travel switch does not overlap with the vertical projection of the dial.

[0015] An up-and-down film wrapping limiting device of a film wrapping machine as described above, the up-and-down film wrapping limiting device of the film wrapping machine further includes bolt II and a fixing nut; the paddle holder is a block structure, and a through hole II is provided on the paddle holder; bolt II sequentially passes through through hole II and one end of the paddle and is connected to the fixing nut, thereby fixedly connecting one end of the paddle to the paddle holder.

[0016] An up-and-down film wrapping limiting device of a film wrapping machine as described above, the paddle is located above the limit block; when the paddle is placed horizontally, the lower surface of the paddle fits with the upper surface of the limit block, thereby obtaining a supporting force to better toggle the travel switch.

[0017] An up-and-down film wrapping limiting device of a film wrapping machine as described above, when the travel switch is placed horizontally, the vertical projection of the travel switch is perpendicular to the vertical projection of the paddle.

[0018] An up-and-down film wrapping limiting device of a film wrapping machine as described above, a scale is provided on the support rod, so that the rising height of the lifting table can be limited, thereby limiting the rising height of the stretching roller, and the film wrapping height of the rolled film on the product can be limited.

[0019] An up-and-down film wrapping limiting device of a film wrapping machine as described above, the up-and-down film wrapping limiting device of the film wrapping machine further includes a support rod base and bolt III; the support rod is fixedly connected to the support rod base; a through hole III is provided on the support rod base; a threaded hole II is provided on the upper surface of the lifting table, and bolt III passes through through hole III and is in threaded connection with threaded hole II to fix the support rod base on the lifting table.

[0020] Beneficial effects:

[0021] For the up-and-down film wrapping limiting device of a film wrapping machine of the present utility model, according to the number of product layers, before starting the film wrapping machine, the position of the paddle is adjusted. When the paddle rises to the travel switch along with the lifting table, the travel switch is toggled because of the position intersection with the paddle, and the information of the travel switch controls the lifting motor to reverse, realizing the process of the stretching roller automatically descending, thereby completing an automatic reciprocating film wrapping action. Description of the drawings

[0022] Figure 1 It is a schematic structural diagram of an up-and-down film wrapping limiting device of a film wrapping machine of the present utility model;

[0023] Figure 2 It is a schematic diagram of the overall use of an up-and-down film wrapping limiting device of a film wrapping machine of the present utility model;

[0024] Wherein 1 - paddle, 2 - support rod, 3 - support rod base, 4 - paddle holder, 5 - bolt II, 6 - limit block, 7 - travel switch, 8 - column main body, 9 - lifting motor, 10 - stretching roller, 11 - lifting table. Detailed implementation manners

[0025] The following further elaborates on the present utility model in conjunction with specific implementation manners. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0026] As Figure 2 shown, the film wrapping machine includes a base, a column main body 8, a lifting table 11, a travel switch 7, a lifting motor 9, and a stretching roller 10;

[0027] The column main body 8 and the lifting table 11 are located on the base, the lifting motor 9 is located on the lifting table 11, and the lifting motor 9 is used to control the up and down movement of the lifting table 11; the stretching roller 10 is vertically fixed on the lifting table 11, a roll of film is sleeved on the stretching roller 10, and the roll of film is used to wrap the product. The product is placed on a rotating disk. When the product rotates on the rotating disk, the roll of film wraps the product; the travel switch 7 is arranged on the column and is used to control the forward and reverse rotation of the lifting motor 9;

[0028] As Figure 1 shown, the lifting and film wrapping limiting device of the film wrapping machine includes a support rod 2, a limit block 6, bolt I, a dial 1, a dial fixer 4, bolt II 5, a fixing nut, a support rod base 3, and bolt III;

[0029] The support rod 2 is provided with scales; the support rod 2 is placed vertically;

[0030] The support rod 2 is fixedly connected to the support rod base 3; the support rod base 3 is provided with a through hole III; a threaded hole II is provided on the upper surface of the lifting table 11, and bolt III passes through the through hole III and is in threaded connection with the threaded hole II to fix the support rod base 3 on the lifting table 11;

[0031] The limit block 6 is provided with a through hole I, the support rod 2 passes through the through hole I and has a clearance fit with the through hole I; the limit block 6 is provided with a threaded hole I, one end of the threaded hole I communicates with the outside, and the other end communicates with the through hole I; bolt I is in threaded connection with the threaded hole I, and bolt I is used to control the connection manner between the limit block 6 and the support rod 2. The connection manners include fixed connection and sliding connection. When bolt I presses the support rod against the inner wall of the through hole I, the limit block 6 is fixedly connected to the support rod 2. When bolt I does not press the support rod against the inner wall of the through hole I, the limit block 6 is slidably connected to the support rod 2;

[0032] The paddle holder 4 is a block structure, and a through hole II is provided on the paddle holder 4; the paddle holder 4 is fixed to the upper surface of the limit block 6; the paddle 1 is placed horizontally, and the bolt II 5 passes through the through hole II and one end of the paddle 1 is connected to the fixing nut in sequence, so that one end of the paddle 1 is fixedly connected to the side of the paddle holder 4; the paddle 1 is located above the limit block 6, and the lower surface of the paddle 1 is in contact with the upper surface of the limit block 6;

[0033] When the travel switch 7 is placed horizontally, the lifting platform 11 moves upward, the vertical projection of the travel switch 7 overlaps and is perpendicular to the vertical projection of the paddle 1, and the maximum distance between the paddle 1 and the travel switch 7 is less than or equal to the lifting range of the lifting platform;

[0034] When the paddle 1 touches the travel switch 7, the travel switch 7 changes from a horizontal state to a vertical state. At this time, the lifting motor 9 rotates in the opposite direction, and the lifting platform 11 changes from an upward movement to a downward movement.

[0035] Specific usage process: before the film wrapping machine works, adjust the positions of the paddle holder 4 and the limit block 6 according to the product height requirements, and adjust the position of the paddle 1 so that the vertical projection of the travel switch 7 overlaps and is perpendicular to the vertical projection of the paddle 1. After the lifting platform 11 rises, the paddle 1 contacts the travel switch 7, and the travel switch 7 changes from a horizontal state to a vertical state, realizing the reverse control of the lifting motor 9, and then the lifting platform 11 starts to descend, thereby completing a reciprocating film wrapping action.

Claims

1. A lifting and film-wrapping limiting device for a film-wrapping machine. The film-wrapping machine includes a base, a column main body (8), a lifting table (11), a travel switch (7), a lifting motor (9), and a stretching roller (10); the column main body (8) and the lifting table (11) are located on the base, the lifting motor (9) is located on the lifting table (11), and the lifting motor (9) is used to control the up and down movement of the lifting table (11); the stretching roller (10) is vertically fixed on the lifting table (11), a roll of film is sleeved on the stretching roller (10), and the roll of film is used to wrap the product. The product is placed on a rotating disk. When the product rotates on the rotating disk, the roll of film wraps the product; the travel switch (7) is arranged on the column and is used to control the forward and reverse rotation of the lifting motor (9), and it is characterized in that, The lifting and winding film limiting device of the film winding machine includes a support rod (2), a limit block (6), bolt I, and a dial (1); The support rod (2) is vertically placed and fixed on the lifting table (11); A through hole I is provided on the limit block (6), and the support rod (2) passes through the through hole I and has a clearance fit with the through hole I; a threaded hole I is provided on the limit block (6), one end of the threaded hole I communicates with the outside, and the other end communicates with the through hole I; bolt I is threadedly connected to the threaded hole I, and bolt I is used to control the connection method between the limit block (6) and the support rod (2), and the connection methods include fixed connection and sliding connection; The dial (1) is horizontally placed and fixedly connected to the limit block (6); When the travel switch (7) is horizontally placed, the lifting table (11) moves upward, the vertical projection of the travel switch (7) overlaps with the vertical projection of the dial (1), and the maximum distance between the dial (1) and the travel switch (7) is less than or equal to the lifting range of the lifting table; When the dial (1) touches the travel switch (7), the travel switch (7) changes from a horizontal state to a vertical state, and the lifting table (11) changes from moving upward to moving downward.

2. The lifting and winding film limiting device of a film winding machine according to claim 1, characterized in that, The lifting and winding film limiting device of the film winding machine further includes a dial holder (4); the dial holder (4) is fixed on the upper surface of the limit block (6), and the dial (1) is rotatably and fixedly connected to the side surface of the dial holder (4).

3. The lifting and winding film limiting device of a film winding machine according to claim 2, characterized in that, The lifting and winding film limiting device of the film winding machine further includes bolt II (5) and a fixing nut; the dial holder (4) is a block structure, and a through hole II is provided on the dial holder (4); bolt II (5) sequentially passes through the through hole II and one end of the dial (1) and is connected to the fixing nut, thereby fixedly connecting one end of the dial (1) to the dial holder (4).

4. The lifting and winding film limiting device of a film winding machine according to claim 3, characterized in that, The dial (1) is located above the limit block (6); when the dial (1) is horizontally placed, the lower surface of the dial (1) fits with the upper surface of the limit block (6).

5. The lifting and winding film limiting device of a film winding machine according to claim 4, characterized in that, When the travel switch (7) is horizontally placed, the vertical projection of the travel switch (7) is perpendicular to the vertical projection of the dial (1).

6. The lifting and winding film limiting device of a film winding machine according to claim 5, characterized in that, Scales are provided on the support rod (2).

7. The lifting and winding film limiting device of a film winding machine according to claim 1, characterized in that, The lifting and winding film limiting device of the film winding machine further includes a support rod base (3) and bolt III; the support rod (2) is fixedly connected to the support rod base (3); a through hole III is provided on the support rod base (3); a threaded hole II is provided on the upper surface of the lifting table (11), and bolt III passes through the through hole III and is in fit connection with the threaded hole II to fix the support rod base (3) on the lifting table (11).

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