Mechanical assembly for film-free alarm of stretch film

Abstract

The utility model relates to the technical field of stretch film packaging machines, in particular to a mechanical assembly with a stretch film no-film alarm function, which comprises a support plate and a stretch film fixing roller. The supporting plate is welded and fixed to the end of the packaging machine. One end of each swing arm is hinged to the upper portion of the end of the packaging machine, and the two swing arms are arranged at the ends of the packaging machine. The support is fixed to the outer side of the end, hinged to the packaging machine, of the swing arm through a screw. The adjusting block is fixed on the outer side of the bracket through a screw; the ejector rod is installed in the adjusting block in an inserted mode and is a sliding device, and the ejector rod and the adjusting block are fixed through a screw. According to the utility model, through the improvement of a mechanical component for alarming the absence of the stretching film, the stretching film alarm device has the advantages of being capable of giving an alarm when the residual quantity of the stretching film is adjusted as required, stopping a machine by a user at a proper time, reducing waste, being convenient to use and facilitating the replacement of the stretching film, so that the problems and defects in the prior art and equipment are effectively solved and overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch film packaging machines, and more specifically, to a mechanical component for a stretch film no-film alarm. Background Art

[0002] Stretch film packaging machine, also known as stretch film vacuum packaging machine or laminating machine, is a packaging equipment with a high degree of automation; its main function is to stretch the lower film into shape as required, then put the package into the formed lower film cavity, then vacuum or vacuum inflate the package in the sealing box, and finally heat-seal the upper film and the lower film in the sealing box, and divide the package by cross-cutting and longitudinal cutting.

[0003] With current stretch film packaging machines, when the stretch film is used up, a photoelectric device is used to sense the mark at the end of the stretch film. When the photoelectric device senses the mark on the stretch film, the machine stops running. Due to the random stop position, some products are not packaged, resulting in a certain amount of waste.

[0004] In view of this, research and improvement are conducted on the existing problems, and a mechanical component with a stretch film without film alarm is provided, aiming to achieve the purpose of solving the problem and improving the practical value through this technology. Utility Model Content

[0005] The utility model aims to provide a mechanical component for a stretched film without film alarm to solve the problems and shortcomings in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a mechanical component for a stretched film without film alarm, which is achieved by the following specific technical means:

[0007] A mechanical assembly for a stretch film no-film alarm, comprising: a support plate, a stretch film fixing roller, a swing arm, a support roller, a guide roller, a bracket, an adjustment block, a push rod, a travel switch, an auxiliary support plate, a fixing plate, a guide column, a slider, a tensioning roller, and an alarm; the support plate is welded and fixed to the end of a packaging machine, and the stretch film fixing roller is installed on one side of the end of the support plate; one end of the swing arm is hingedly installed above the end of the packaging machine, and the swing arm is provided at two locations at the end of the packaging machine; the support roller is rotatably installed at the other end of the swing arm, and the guide roller is rotatably installed near the middle of the swing arm; the bracket is fixed to the outer side of one end of the swing arm hinged to the packaging machine by screws; the adjustment block is fixed to the outer side of the bracket by screws; The push rod is inserted and installed in the adjustment block as a sliding device, and the push rod and the adjustment block are fixed by screws; the travel switch is fixed to the end of the packaging machine by screws, and the travel switch is arranged on the movement trajectory of the push rod; one end of the auxiliary support plate is hingedly arranged at the end of the packaging machine, and the other end of the auxiliary support plate is abutted against the guide roller, and when the auxiliary support plate abuts against the guide roller, the support roller is away from the stretch film fixing roller; the fixed plate is symmetrically welded and fixed below the end swing arm of the packaging machine; the guide column is fixed below the fixed plate, and the slider is slidably installed on the guide column, and the two ends of the tensioning roller are rotatably connected to the slider; the alarm is fixed on one side of the end of the packaging machine, and the alarm is electrically connected to the travel switch.

[0008] As a further optimization of the technical solution, the utility model provides a mechanical component for a stretch film without a film alarm, wherein the bracket is a plate-like structure with a waist-shaped groove in the middle.

[0009] As a further optimization of the technical solution, the utility model provides a mechanical component for stretch film without film alarm, wherein the adjustment block is a cylindrical structure, and a through hole perpendicular to its central axis is opened on the outer wall of the adjustment block, and a threaded hole is opened through the axis of the adjustment block.

[0010] As a further optimization of the technical solution, the push rod of the mechanical component of the stretch film without film alarm of the utility model is a cylindrical structure in the shape of the English letter "T" as a whole.

[0011] As a further optimization of the technical solution, the auxiliary support plate of the mechanical component of the stretch film without film alarm of the utility model is a rectangular plate structure with one end in a semicircular arc shape.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] 1. The utility model bracket is fixed to the outer side of one end of the swing arm and the packaging machine by screws, the adjusting block is fixed to the outer side of the bracket by screws, the push rod is inserted and installed in the adjusting block as a sliding device, and the push rod and the adjusting block are fixed by screws, the travel switch is fixed to the end of the packaging machine by screws, and the travel switch is arranged on the movement track of the push rod. After the stretch film is used, the swing arm descends, driving the bracket to move, so that the end of the push rod presses the travel switch to start the alarm. The structure is simple and the reliability is high. By adjusting the length of the push rod extending out of the adjusting block, the swing arm can be controlled to rotate to a certain angle when the push rod turns on the switch, which is convenient for users to prepare in advance and shut down at the appropriate time to reduce material waste.

[0014] 2. The auxiliary support plate of the utility model is a rectangular plate structure with one end in a semicircular arc shape. One end of the auxiliary support plate is hingedly arranged at the end of the packaging machine, and the other end of the auxiliary support plate is in contact with the guide roller. When the auxiliary support plate is in contact with the guide roller, the support roller is away from the stretch film fixing roller. When the stretch film is replaced, the guide roller is supported by the auxiliary support plate to keep the support roller away from the stretch film fixing roller, so that the stretch film can be easily installed on the stretch film fixing roller.

[0015] 3. The utility model improves the mechanical components of the stretch film no film alarm, and has the advantages of being able to adjust the amount of stretch film remaining as needed to issue an alarm, allowing the user to stop the machine at an appropriate time, reducing waste, being easy to use, and facilitating the replacement of the stretch film, thereby effectively solving the problems and shortcomings of the prior art and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0020] Figure 4 It is a schematic diagram of the exploded structure of the regulating block part of the utility model.

[0021] In the figure: support plate 1, stretch film fixing roller 2, swing arm 3, support roller 4, guide roller 5, bracket 6, adjustment block 7, push rod 8, travel switch 9, auxiliary support plate 10, fixing plate 11, guide column 12, slider 13, tensioning roller 14, warning device 15. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figures 1 to 4 The utility model provides a specific technical implementation scheme of a mechanical component of a stretch film without film alarm:

[0024] A mechanical assembly for a stretch film no-film alarm, comprising: a support plate 1, a stretch film fixing roller 2, a swing arm 3, a support roller 4, a guide roller 5, a bracket 6, an adjustment block 7, a push rod 8, a travel switch 9, an auxiliary support plate 10, a fixing plate 11, a guide column 12, a slider 13, a tensioning roller 14, and an alarm 15; the support plate 1 is welded and fixed to the end of the packaging machine, and the stretch film fixing roller 2 is installed on one side of the end of the support plate 1; one end of the swing arm 3 is hingedly installed above the end of the packaging machine, and the swing arm 3 is provided at two locations at the end of the packaging machine; the support roller 4 is rotatably installed at the other end of the swing arm 3, and the guide roller 5 is rotatably installed near the middle of the swing arm 3; the bracket 6 is a plate-like structure with a waist-shaped groove in the middle; the bracket 6 is fixed to the outer side of the hinged end of the swing arm 3 and the packaging machine by screws; the adjustment block 7 is a cylindrical structure, and a through hole perpendicular to its central axis is opened on the outer wall of the adjustment block 7, And the axis of the adjusting block 7 is provided with a threaded hole for fixing the push rod 8 and the adjusting block 7; the adjusting block 7 is fixed to the outer side of the bracket 6 by screws; the push rod 8 is inserted and installed in the adjusting block 7 as a sliding device, and the push rod 8 and the adjusting block 7 are fixed by screws; the push rod 8 is a cylindrical structure in the shape of the English letter "T" as a whole, and the push rod 8 has better contact with the travel switch 9; by adjusting the length of the push rod 8 extending out of the adjusting block 7, it is possible to control the angle to which the swing arm 3 rotates when the push rod 8 turns on the switch 9, thereby controlling the remaining amount of the stretch film, facilitating the user to prepare in advance and reducing downtime; the travel switch 9 is fixed to the end of the packaging machine by screws, and the travel switch 9 is set on the movement trajectory of the push rod 8; after the stretch film is used up, the swing arm 3 descends, driving the bracket 6 to move, so that the end of the push rod 8 presses the travel switch 9, and the alarm 15 is activated to indicate that the stretch film is insufficient, with a simple structure and high reliability.

[0025] The auxiliary support plate 10 is a rectangular plate structure with one end in a semicircular arc shape; one end of the auxiliary support plate 10 is hingedly arranged at the end of the packaging machine, and the other end of the auxiliary support plate 10 abuts against the guide roller 5, and when the auxiliary support plate 10 abuts against the guide roller 5, the support roller 4 is away from the stretch film fixing roller 2; when replacing the stretch film, the guide roller 5 is supported by the auxiliary support plate 10 to make the support roller 4 away from the stretch film fixing roller 2, so as to facilitate the installation of the stretch film on the stretch film fixing roller 2; the fixed plate 11 is symmetrically welded and fixed under the end swing arm 3 of the packaging machine; the guide column 12 is fixed under the fixed plate 11, and the slider 13 is slidably installed on the guide column 12, and the two ends of the tensioning roller 14 are rotatably connected to the slider 13; the alarm 15 is fixed on one side of the end of the packaging machine, and the alarm 15 is electrically connected to the travel switch 9.

[0026] Specific implementation steps:

[0027] When installing the stretch film, pull the supporting roller 4 to lift the swing arm 3, and make the end of the auxiliary supporting plate 10 abut against the guide roller 5. The swing arm 3 cannot rotate, and the stretch film can be installed on the stretch film fixing roller 2. During the use of the stretch film, as the stretch film decreases, the swing arm 3 continues to rotate downward, and the bracket 6 follows the movement until the push rod 8 contacts the travel switch 9, and the alarm 15 is turned on, indicating that the stretch film is insufficient. By adjusting the length of the push rod 8 extending out of the adjusting block 7, the swing arm 3 can be controlled to rotate to a certain angle when the travel switch 9 is turned on, thereby controlling the remaining amount of the stretch film, facilitating the staff to find out in time, and stopping production at an appropriate position to reduce material waste.

[0028] To sum up: this mechanical component of a stretch film no-film alarm is fixed to the outer side of one end of the swing arm and the packaging machine by screws through a bracket, the adjusting block is fixed to the outer side of the bracket by screws, the push rod is inserted and installed in the adjusting block as a sliding device, and the push rod and the adjusting block are fixed by screws, the travel switch is fixed to the end of the packaging machine by screws, and the travel switch is set on the movement trajectory of the push rod. After the stretch film is used, the swing arm descends, driving the bracket to move, so that the end of the push rod presses the travel switch to start the alarm. It has a simple structure and high reliability. By adjusting the length of the push rod extending out of the adjusting block, it is possible to control the angle at which the swing arm rotates to turn on the switch, which is convenient for users to prepare in advance and shut down at the appropriate time to reduce material waste. The auxiliary support plate is a rectangular plate structure with a semicircular arc at one end, one end of the auxiliary support plate is hingedly arranged at the end of the packaging machine, and the other end of the auxiliary support plate abuts against the guide roller, and when the auxiliary support plate abuts against the guide roller, the support roller is away from the stretch film fixing roller. When replacing the stretch film, the guide roller is supported by the auxiliary support plate to keep the support roller away from the stretch film fixing roller, which is convenient for installing the stretch film on the stretch film fixing roller. The utility model improves the mechanical components of the stretch film no film alarm, has the advantages of being able to adjust the remaining stretch film as needed to issue a warning, the user can stop the machine at an appropriate time, reduce waste, and is easy to use and convenient for replacing the stretch film, thereby effectively solving the problems and shortcomings in the existing technology and equipment.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical assembly for a stretched film no-film alarm, comprising: A support plate (1), a stretch film fixing roller (2), a swing arm (3), a support roller (4), a guide roller (5), a bracket (6), an adjustment block (7), a push rod (8), a travel switch (9), an auxiliary support plate (10), a fixing plate (11), a guide column (12), a slider (13), a tensioning roller (14), and an alarm (15); characterized in that: the support plate (1) is welded and fixed to the end of the packaging machine, and the stretch film fixing roller (2) is installed on one side of the end of the support plate (1); one end of the swing arm (3) is hingedly installed above the end of the packaging machine, and the swing arm (3) is provided at two locations at the end of the packaging machine; the support roller (4) is rotatably installed at the other end of the swing arm (3), and the guide roller (5) is rotatably installed near the middle of the swing arm (3); the bracket (6) is fixed to the outer side of the hinged end of the swing arm (3) and the packaging machine by screws; the adjustment block (7) is fixed to the outer side of the bracket (6) by screws; the push rod (8) is a sliding device inserted and installed in the adjustment block (7), and the push rod (8) and the adjustment block (7) are fixed by screws; the travel switch (9) is fixed to the end of the packaging machine by screws, and the travel switch (9) is arranged on the movement track of the push rod (8); one end of the auxiliary support plate (10) is hingedly arranged at the end of the packaging machine, and the other end of the auxiliary support plate (10) is in contact with the guide roller (5), and when the auxiliary support plate (10) is in contact with the guide roller (5), the support roller (4) is away from the stretch film fixing roller (2); the fixing plate (11) is symmetrically welded and fixed below the end swing arm (3) of the packaging machine; the guide column (12) is fixed below the fixing plate (11), and the slider (13) is slidably installed on the guide column (12), and the two ends of the tensioning roller (14) are rotatably connected to the slider (13); the alarm (15) is fixed to one side of the end of the packaging machine, and the alarm (15) is electrically connected to the travel switch (9).

2. A mechanical assembly for a stretched film no-film alarm according to claim 1, characterized in that: The bracket (6) is a plate-shaped structure with a waist-shaped groove in the middle.

3. The mechanical assembly for the stretched film non-film alarm according to claim 1, characterized in that: The adjusting block (7) is a cylindrical structure, and a through hole perpendicular to the central axis of the adjusting block (7) is provided on the outer wall of the adjusting block (7), and a threaded hole is provided through the axis of the adjusting block (7).

4. The mechanical assembly for the stretched film non-film alarm according to claim 1, characterized in that: The top rod (8) is a cylindrical structure that is in the shape of the English letter "T" as a whole.

5. The mechanical assembly for the stretched film non-film alarm according to claim 1, characterized in that: The auxiliary support plate (10) is a rectangular plate structure with one end in a semicircular arc shape.

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