Film feeding deviation correcting device of full-automatic stretch film packaging machine

Abstract

The utility model relates to the technical field of stretch film packaging machines, in particular to a full-automatic stretch film packaging machine film feeding deviation correcting device. Comprising a first U-shaped support, a first limiting roller, a second limiting roller and a third limiting roller are rotationally installed in the first U-shaped support, the first limiting roller, the second limiting roller and the third limiting roller are wound with the same stretching film, a second U-shaped support is arranged in the first U-shaped support, a deviation rectifying roller is rotationally installed in the second U-shaped support, and a deviation rectifying roller is arranged in the deviation rectifying roller. The deviation rectifying roller is in contact with one side of the stretching film, a third U-shaped support is fixedly installed on one side of the second U-shaped support, a lead screw penetrates through the third U-shaped support in a threaded mode, and rectangular through holes penetrate through the inner walls of the two sides of the first U-shaped support. Through the simple stretching film deviation rectifying structure, the problem that the stretching film is damaged in the surface deviation rectifying process can be effectively solved, the operation of cutting off the damaged stretching film and feeding the film again is avoided, and the food packaging work efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch film packaging machines, in particular to a film feeding deviation correction device for a full-automatic stretch film packaging machine. Background Art

[0002] With the continuous development of the economy, the process of industrialization is accelerating, especially in the food industry. After the food is produced, it needs to be packaged using a packaging machine. The fully automatic stretch film packaging machine is a very popular packaging machine, which can realize the automatic stretch film covering packaging operation of the food packaging box. The film feeding and deviation correction mechanism, as an important structure of the packaging machine, can effectively prevent the stretch film from deflecting. The prior art discloses a fully automatic stretch film packaging machine film feeding and deviation correction device with an authorization announcement number of CN116573229A, which relates to the technical field of stretch film packaging machines, including a load-bearing roller rod, a positioning reduction device, a reset device and a transmission assembly movably connected at one end thereof, wherein the two ends of the load-bearing roller rod are movably connected to one side of the positioning reduction device, the transmission assembly is movably installed on one side of the positioning reduction device, and the transmission assembly is located between the load-bearing roller rod and the positioning reduction device. The present invention utilizes a transmission device to push the stretch film limiting shell on the other side of the load-bearing roller rod to move to both sides of the stretch film when the sausage causes the shape and moving direction of the stretch film to change, and utilizes the rotation of the pressing reset belt to achieve the purpose of resetting the position of the stretch film. This device can immediately trigger the reset device when the stretch film is offset, thereby speeding up the reset efficiency and avoiding the situation where the offset gradually increases over time, thereby ensuring that the packaging machine can adapt to different types of sausages.

[0003] However, it was found in use that the reset structure of the above design could easily cause the stretch film to be deformed or damaged during the correction process, and the damaged stretch film needed to be cut off and re-fed, which brought a lot of trouble to the food packaging work. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a film feeding and correction device for a fully automatic stretch film packaging machine, which can effectively solve the problem of damaged stretch film during the surface correction process, avoid the operation of cutting off the damaged stretch film and re-feeding the film, which is conducive to improving the efficiency of food packaging work and solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a film feeding and deviation correction device for a fully automatic stretch film packaging machine, comprising a first U-shaped bracket, a first limiting roller, a second limiting roller and a third limiting roller being rotatably installed in the first U-shaped bracket, the first limiting roller, the second limiting roller and the third limiting roller being wound with the same stretch film, a second U-shaped bracket being provided in the first U-shaped bracket, a deviation correction roller being rotatably installed in the second U-shaped bracket, the deviation correction roller being in contact with one side of the stretch film, a third U-shaped bracket being fixedly installed on one side of the second U-shaped bracket, a screw rod being threaded through the third U-shaped bracket, rectangular through holes being penetrated on the inner walls on both sides of the first U-shaped bracket, a slider being slidably penetrated in the rectangular through hole, two ends of the screw rod being rotatably installed on corresponding sliders respectively, one of the sliders being provided with a motor, the output shaft of the motor being fixed on one end of the screw rod, and two limiting slide plates being fixedly installed on the second U-shaped bracket, the limiting slide plates slidably passing through the corresponding rectangular through holes.

[0006] To ensure that the stretch film is taut:

[0007] As a further improvement of the above technical solution: the first U-shaped bracket also includes a horizontal plate, which is fixed on one side of the first U-shaped bracket, and two electric cylinders are fixedly installed on the side of the horizontal plate away from the deviation correction roller, and a connecting plate is slidably installed on one side of the third U-shaped bracket, and the output rod of the electric cylinder slides through the horizontal plate and is fixed on the connecting plate.

[0008] The beneficial effect of this improvement is that, through such an arrangement, it is convenient to quickly adjust the position of the deviation-correcting roller, and it is convenient to adjust the contact force between the deviation-correcting roller and the stretch film, so as to ensure that the stretch film is tensioned and prevent the stretch film from loosening.

[0009] In order to facilitate the installation and fixation of the first U-shaped bracket:

[0010] As a further improvement of the above technical solution: two fixing feet are fixedly installed on both sides of the first U-shaped bracket, and bolt holes penetrate through the fixing feet.

[0011] The beneficial effect of this improvement is that by providing the fixing feet, it is convenient to install and fix the first U-shaped bracket.

[0012] To prevent the limit slide from falling off the rectangular through hole:

[0013] As a further improvement of the above technical solution: a limiting plate is fixedly mounted on one end of the limiting slide away from the second U-shaped bracket.

[0014] The beneficial effect of this improvement is that by providing a limit plate, the limit slide plate can be prevented from being separated from the rectangular through hole.

[0015] In order to facilitate the limiting of the screw rod:

[0016] As a further improvement of the above technical solution: a circular hole is passed through the sliding block, and both ends of the screw rod are rotatably installed in the corresponding circular holes respectively.

[0017] The beneficial effect of this improvement is that the circular hole is provided to facilitate the positioning of the screw rod.

[0018] In order to facilitate the screw rod to drive the third U-shaped bracket to move:

[0019] As a further improvement of the above technical solution: the third U-shaped bracket is penetrated by two threaded through holes, and the screw thread penetrates the two threaded through holes.

[0020] The beneficial effect of this improvement is that by providing the threaded through hole, it is convenient for the screw rod to drive the third U-shaped bracket to move.

[0021] To facilitate the sliding connection between the third U-shaped bracket and the connecting plate:

[0022] As a further improvement of the above technical solution: a slide groove is provided on one side of the connecting plate, and two limit blocks are slidably installed in the slide groove, and the limit blocks are fixed on the third U-shaped bracket.

[0023] The beneficial effect of this improvement is that by providing the sliding groove and the limit block, the third U-shaped bracket is facilitated to be slidably connected to the connecting plate.

[0024] To prevent the limit block from falling out of the slide:

[0025] As a further improvement of the above technical solution: a limit rod is fixedly installed in the slide groove, and the limit rod slides through the two limit blocks.

[0026] The beneficial effect of this improvement is that by setting the limit rod, it is convenient to limit the limit block and prevent the limit block from falling out of the slide groove.

[0027] The beneficial effects of the utility model are as follows: through a simple stretch film correction structure, the problem of stretch film damage during the surface correction process can be effectively solved, the operation of cutting off the damaged stretch film and re-feeding the film is avoided, which is beneficial to improving the efficiency of food packaging work. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0029] Figure 2 It is a schematic diagram of a top view and cross-section structure of the utility model;

[0030] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A;

[0031] Figure 4 It is a schematic diagram of a three-dimensional cross-sectional assembly structure of the second U-shaped bracket, the third U-shaped bracket, the limiting slide plate and the connecting plate in the utility model;

[0032] Figure 5 It is a schematic cross-sectional structural diagram of the sliding block in the utility model.

[0033] In the figure: 1. first U-shaped bracket; 2. first limiting roller; 3. second limiting roller; 4. third limiting roller; 5. stretching film; 6. second U-shaped bracket; 7. deviation correction roller; 8. third U-shaped bracket; 9. screw rod; 10. rectangular through hole; 11. slider; 12. motor; 13. limiting slide plate; 14. cross plate; 15. electric cylinder; 16. connecting plate. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0035] like Figure 1-5As shown, a film feeding and deviation correction device for a fully automatic stretch film packaging machine comprises a first U-shaped bracket 1, in which a first limiting roller 2, a second limiting roller 3 and a third limiting roller 4 are rotatably installed, and the first limiting roller 2, the second limiting roller 3 and the third limiting roller 4 are wound with the same stretch film 5, a second U-shaped bracket 6 is arranged in the first U-shaped bracket 1, in which a deviation correction roller 7 is rotatably installed, and the deviation correction roller 7 contacts one side of the stretch film 5, a third U-shaped bracket 8 is fixedly installed on one side of the second U-shaped bracket 6, a screw rod 9 is threaded through the third U-shaped bracket 8, rectangular through holes 10 are penetrated on the inner walls on both sides of the first U-shaped bracket 1, and a slider 11 is slidably penetrated in the rectangular through hole 10 , the two ends of the screw rod 9 are rotatably mounted on the corresponding sliders 11 respectively, one of the sliders 11 is provided with a motor 12, and the output shaft of the motor 12 is fixed to one end of the screw rod 9, and two limiting slides 13 are fixedly mounted on the second U-shaped bracket 6, and the limiting slides 13 slide through the corresponding rectangular through holes 10. Through a simple deviation correction structure of the stretch film 5, the problem of damaging the stretch film 5 during the deviation correction process can be effectively avoided, and the operation of cutting off the damaged stretch film 5 and re-feeding the film can be avoided, which is beneficial to improving the efficiency of food packaging work. The first U-shaped bracket 1 also includes a transverse plate 14, which is fixed on one side of the first U-shaped bracket 1, and two electric cylinders 15 are fixedly mounted on the side of the transverse plate 14 away from the deviation correction roller 7. A connecting plate 16 is slidably installed on one side of the third U-shaped bracket 8, and the output rod of the electric cylinder 15 slides through the cross plate 14 and is fixed on the connecting plate 16. Through such an arrangement, it is convenient to quickly adjust the position of the correcting roller 7, and it is convenient to adjust the contact force between the correcting roller 7 and the stretching film 5, which can ensure the tension of the stretching film 5 and prevent the stretching film 5 from loosening. Two fixing feet are fixedly installed on both sides of the first U-shaped bracket 1, and the fixing feet are penetrated with bolt holes. By setting the fixing feet, it is convenient to install and fix the first U-shaped bracket 1, and a limiting plate is fixedly installed on one end of the limiting slide away from the second U-shaped bracket 6. By setting the limiting plate, it is possible to prevent the limiting slide from detaching from the rectangular through hole 10. The slider 11 is penetrated with a round hole. The two ends of the screw rod 9 are rotatably installed in the corresponding circular holes respectively. By setting the circular holes, it is convenient to limit the screw rod 9. The third U-shaped bracket 8 is penetrated by two threaded through holes, and the screw rod 9 is threaded through the two threaded through holes. By setting the threaded through holes, it is convenient for the screw rod 9 to drive the third U-shaped bracket 8 to move. A sliding groove is opened on one side of the connecting plate 16, and two limit blocks are slidably installed in the sliding groove. The limit block is fixed on the third U-shaped bracket 8. By setting the sliding groove and the limit block, it is convenient to slide and connect the third U-shaped bracket 8 with the connecting plate 16. A limit rod is fixedly installed in the sliding groove, and the limit rod slides through the two limit blocks. By setting the limit rod, it is convenient to limit the limit block to prevent the limit block from leaving the sliding groove.

[0036] The working principle of the utility model is as follows: when in use, the stretching film 5 is first wound around the first limiting roller 2, the second limiting roller 3 and the third limiting roller 4. When the stretching film 5 deviates during the release process, the two electric cylinders 15 are first turned on. The output rod of the electric cylinder 15 drives the connecting plate 16 to move laterally, so that the third U-shaped bracket 8 is driven to move laterally. The third U-shaped bracket 8 drives the screw rod 9, the two sliders 11, the motor 12 and the second U-shaped bracket 6 to move laterally. The slider 11 slides in the corresponding rectangular through hole 10. At the same time, the second U-shaped bracket 6 drives the deviation correction roller 7 and the limiting slide plate 13 to move laterally until the deviation correction roller 7 contacts the stretching film 5. The limiting slide plate 13 slides in the corresponding rectangular through hole 10. At this time, the deviation correction roller 7 is in close contact with the stretching film 5, and the deviation correction roller 7 is driven by the stretching film 5. Rotation. Through such an arrangement, it is convenient to quickly adjust the position of the deflection correction roller 7, and it is convenient to adjust the contact force between the deflection correction roller 7 and the stretch film 5, so as to ensure that the stretch film 5 is tensioned and prevent the stretch film 5 from being loose. Then, the motor 12 is turned on, and the output shaft of the motor 12 drives the screw 9 to rotate, so that the third U-shaped bracket 8 is driven to slide on the connecting plate 16, and at the same time, the third U-shaped bracket 8 drives the second U-shaped bracket 6 to move, so that the deflection correction roller 7 is driven to move, and the deflection correction roller 7 moves while dragging the stretch film 5 to move horizontally, thereby eliminating the offset of the stretch film 5. Through such an arrangement, the problem of damage to the stretch film 5 during the surface deflection correction process can be effectively solved, and the operation of cutting off the damaged stretch film 5 and re-feeding the film is avoided, which is beneficial to improving the efficiency of food packaging work.

[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A film feeding deviation correction device for a fully automatic stretch film packaging machine, comprising a first U-shaped bracket (1), characterized in that: A first limiting roller (2), a second limiting roller (3) and a third limiting roller (4) are rotatably mounted in the first U-shaped bracket (1); a same stretching film (5) is wound around the first limiting roller (2), the second limiting roller (3) and the third limiting roller (4); a second U-shaped bracket (6) is rotatably mounted in the first U-shaped bracket (1); a deviation correction roller (7) is rotatably mounted in the second U-shaped bracket (6); the deviation correction roller (7) is in contact with one side of the stretching film (5); a third U-shaped bracket (8) is fixedly mounted on one side of the second U-shaped bracket (6); and the third U-shaped bracket ( 8) A screw rod (9) is threaded through the upper thread, and rectangular through holes (10) are passed through the inner walls of both sides of the first U-shaped bracket (1), and a slider (11) is slidably passed through the rectangular through hole (10), and the two ends of the screw rod (9) are rotatably mounted on the corresponding sliders (11), and one of the sliders (11) is provided with a motor (12), and the output shaft of the motor (12) is fixed to one end of the screw rod (9), and two limiting slide plates (13) are fixedly installed on the second U-shaped bracket (6), and the limiting slide plates (13) slide through the corresponding rectangular through holes (10).

2. The film feeding deviation correction device of the fully automatic stretch film packaging machine according to claim 1, characterized in that: The first U-shaped bracket (1) further comprises a transverse plate (14), wherein the transverse plate (14) is fixed on one side of the first U-shaped bracket (1), and two electric cylinders (15) are fixedly mounted on the side of the transverse plate (14) away from the deviation correction roller (7), and a connecting plate (16) is slidably mounted on one side of the third U-shaped bracket (8), and an output rod of the electric cylinder (15) slides through the transverse plate (14) and is fixed on the connecting plate (16).

3. The film feeding deviation correction device of the fully automatic stretch film packaging machine according to claim 1, characterized in that: Two fixing feet are fixedly mounted on both sides of the first U-shaped bracket (1), and bolt holes penetrate through the fixing feet.

4. The film feeding deviation correction device of the fully automatic stretch film packaging machine according to claim 1, characterized in that: A limiting plate is fixedly mounted on one end of the limiting slide plate away from the second U-shaped bracket (6).

5. The film feeding deviation correction device of the fully automatic stretch film packaging machine according to claim 1, characterized in that: The slider (11) is penetrated by a circular hole, and the two ends of the screw rod (9) are rotatably mounted in the corresponding circular holes.

6. The film feeding deviation correction device of the fully automatic stretch film packaging machine according to claim 1, characterized in that: The third U-shaped bracket (8) is penetrated by two threaded through holes, and the screw rod (9) is threadedly penetrated by the two threaded through holes.

7. The film feeding deviation correction device of the fully automatic stretch film packaging machine according to claim 2, characterized in that: A sliding groove is provided on one side of the connecting plate (16), and two limit blocks are slidably installed in the sliding groove, and the limit blocks are fixed on the third U-shaped bracket (8).

8. The film feeding deviation correction device of the fully automatic stretch film packaging machine according to claim 7, characterized in that: A limit rod is fixedly installed in the slide groove, and the limit rod slides through two limit blocks.

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