Automatic film feeding positioning device of stretch film packaging machine
The automatic fine-tuning mechanism driven by servo motors and linear guides solves the problem of inaccurate film positioning on stretch film packaging machines, achieving rapid and accurate film positioning and improving production efficiency and packaging quality.
Patent Information
- Application Number
- CN202520570458.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing stretch film packaging machines lack effective automatic positioning mechanisms, which requires frequent manual adjustment of the film position when changing products of different sizes or shapes, affecting production efficiency and packaging quality.
An automatic fine-tuning mechanism consisting of a servo motor-driven strip frame and linear guide rail, along with cylinders and linkages, achieves rapid and accurate positioning of the film through a combination of limit rings and guide wheels, reducing the need for manual adjustment.
It enables rapid and accurate film positioning, improves packaging efficiency and consistency, reduces labor costs, avoids inaccurate positioning, and enhances the automation level of the equipment and packaging quality.
Smart Images
Figure CN223803932U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stretch film packaging machine technical field, concretely is a kind of stretch film packaging machine film automatic positioning device. BACKGROUND
[0002] In modern industrial production, stretch film packaging machine is widely used in the commodity packaging process of food, beverage, medicine and other industries. This machine can not only effectively protect the product from the influence of external environmental factors, but also improve the appearance quality of the product and increase the market competitiveness. In order to ensure the consistency and beauty of the packaging effect, the stretch film must be accurately positioned and attached to the surface of the product during the packaging process.
[0003] The existing stretch film packaging machine has a significant problem, that is, due to the lack of effective automatic positioning mechanism, it is necessary to frequently manually adjust the position of the film when packaging different sizes or shapes of products, which greatly affects the production efficiency and increases the labor cost. In addition, manual adjustment may also cause inaccurate positioning, thereby affecting the final packaging quality. Therefore, it is particularly important to design a film automatic positioning device with simple structure and easy adjustment. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of stretch film packaging machine film automatic positioning device to solve the problem of frequent manual adjustment, low production efficiency and unstable packaging quality caused by lack of effective automatic positioning mechanism in the above background technology.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of stretch film packaging machine film automatic positioning device, including mounting bracket, the outer side of the mounting bracket is equipped with servo motor, the inner side of the mounting bracket is equipped with the bar-shaped solid frame rotated by servo motor, the outer side of the bar-shaped solid frame is driven with positioning frame by linear guide rail, the inner side of the positioning frame is equipped with solid guide wheel and dynamic guide wheel respectively, and one side of the outer part of the positioning frame is equipped with automatic fine adjustment mechanism consisting of cylinder and linkage, the automatic fine adjustment mechanism is used to adjust the relative position of dynamic guide wheel and solid guide wheel, and the outer part of both ends of the solid guide wheel and dynamic guide wheel is equipped with the limiting ring that can be transversely adjusted.
[0006] Preferably, both ends of the dynamic guide wheel are equipped with sliding block, and the inner wall of both sides of the upper end of the positioning frame is equipped with sliding groove matched with sliding block structure.
[0007] Preferably, the cylinder is vertically fixed on the side outer wall of the outer end of the positioning frame, the linkage is fixed on the output end of the cylinder, and the side wall of the outer end of the positioning frame is provided with a strip-shaped movable opening matched with the structure of the linkage, and the inner end of the linkage penetrates through the strip-shaped movable opening on the positioning frame and is fixedly connected with the corresponding sliding block.
[0008] Preferably, the upper and lower ends of the back side of the strip-shaped fixed frame are provided with arc-shaped guide blocks, and the outer side of the mounting bracket is provided with a ring-shaped guide seat matched with the structure of the guide block.
[0009] Preferably, the outer side of the limiting ring is fixed with a fastening ring, and the fastening ring and the limiting ring are designed as an integral structure in concentricity.
[0010] Preferably, the inner wall of the upper and lower ends of the fastening ring is provided with an arc-shaped expansion slot, and the arc-shaped expansion slot of the upper and lower ends of the fastening ring is connected with a clamping piece through an elastic pad, and the middle of the clamping piece is provided with a lifting shaft penetrating through the fastening ring.
[0011] Compared with the prior art, the stretch film packaging machine upper film automatic positioning device realizes rapid and accurate positioning of the film, reduces the need for manual adjustment, and improves the packaging efficiency and consistency. The device drives the strip-shaped fixed frame to rotate through the servo motor, accurately controls the position of the positioning frame through the linear guide, adjusts the relative position between the dynamic guide wheel and the solid guide wheel through the automatic fine adjustment mechanism composed of the cylinder and the linkage, and ensures the stability of the two during work through the limiting ring. The whole system design is compact and easy to operate, not only significantly improves the automation degree of the equipment, but also effectively solves the problem of frequent manual adjustment when replacing products of different sizes in traditional equipment. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a stretch film packaging machine upper film automatic positioning device structure schematic view of the utility model;
[0013] Fig. 2 It is a stretch film packaging machine upper film automatic positioning device fastening ring internal structure schematic view of the utility model;
[0014] Fig. 3 It is a stretch film packaging machine upper film automatic positioning device positioning frame external side view structure schematic view of the utility model.
[0015] In the figure: 1, mounting bracket; 2, servo motor; 3, strip-shaped fixed frame; 4, linear guide; 5, positioning frame; 6, solid guide wheel; 7, dynamic guide wheel; 8, sliding block; 9, sliding groove; 10, cylinder; 11, linkage; 12, limiting ring; 13, fastening ring; 14, ring-shaped guide seat; 15, guide block; 16, clamping piece; 17, lifting shaft. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0017] Please refer to Figs. 1-3The utility model provides a technical scheme: a kind of automatic positioning device of film on stretch film packaging machine, including mounting bracket 1, the upper and lower ends of mounting bracket 1 are equipped with mounting hole, the outside of mounting bracket 1 is fixedly installed with servo motor 2 by bolt, the inside of mounting bracket 1 is equipped with the strip solid frame 3 that is rotated by servo motor 2 drive, the output of servo motor 2 is connected with the middle of the back side of strip solid frame 3 by rotating shaft, the outside of strip solid frame 3 is driven with positioning frame 5 by linear guide rail 4, the inside of positioning frame 5 is equipped with solid guide wheel 6 and dynamic guide wheel 7 respectively, the both ends of solid guide wheel 6 are connected with the both sides inner wall of positioning frame 5 by bearing, and one side outside of positioning frame 5 is equipped with the automatic fine adjustment mechanism that is made of cylinder 10 and linkage 11, the automatic fine adjustment mechanism is used for adjusting the relative position of dynamic guide wheel 7 and solid guide wheel 6, and the outside of both ends of solid guide wheel 6 and dynamic guide wheel 7 is all equipped with the limiting ring 12 that can be transversely adjusted, the servo motor 2 of this structure can be driven by starting in the outside of mounting bracket 1 to drive the rotation of the inside strip solid frame 3, and accurate position adjustment is carried out by linear guide rail 4 drive positioning frame 5, so that solid guide wheel 6 and dynamic guide wheel 7 in positioning frame 5 can be quickly moved to specified position as required, simultaneously, the relative position between dynamic guide wheel 7 and solid guide wheel 6 can be adjusted in real time by the automatic fine adjustment mechanism that is made of cylinder 10 and linkage 11, ensure that the distance between the both is suitable for current packaging demand, and the limiting ring 12 that is equipped in the outside of both ends of solid guide wheel 6 and dynamic guide wheel 7 can ensure that the both remain stable without transverse deviation during working process, the whole process does not need manual intervention, realizes the quick and accurate positioning of film, reduces the demand of manual adjustment, improves packaging efficiency and consistency, solves the problem that frequent manual adjustment film position is caused due to lack of effective automatic positioning mechanism in prior art, thereby improves production efficiency, reduces labor cost, and avoids the inaccuracy of positioning that may be caused by manual adjustment, effectively improves the final packaging quality, the both ends of dynamic guide wheel 7 are all welded and fixed with sliding block 8, the connecting place of sliding block 8 and dynamic guide wheel 7 is also connected by bearing, and the both sides inner wall of positioning frame 5 upper end is equipped with the sliding slot 9 that is matched with the structure of sliding block 8, cylinder 10 is vertically fixed on the side outer wall of the outer end of positioning frame 5 by support block, linkage 11 is fixed on the output end of cylinder 10, and the side wall of the outer end of positioning frame 5 is equipped with the strip movable mouth that is matched with the structure of linkage 11, the inner end of linkage 11 penetrates the strip movable mouth on positioning frame 5 and is fixedly connected with corresponding sliding block 8, when the position of dynamic guide wheel 7 needs to be adjusted, cylinder 10 pushes or pulls corresponding sliding block 8 by linkage 11 fixed on its output end, so that the action of cylinder 10 can be directly converted into the linear motion of sliding block 8 along sliding slot 9, and then drive dynamic guide wheel 7 to carry out accurate position adjustment, which not only ensures the accuracy and stability of dynamic guide wheel 7 position adjustment, but also effectively prevents the deviation or shaking of dynamic guide wheel 7 during movement by the cooperation of sliding block 8 and sliding slot 9,Thus, the rapid response and precise adjustment of different size packaging requirements are realized, and the operation flexibility and automation degree of the equipment are improved. The upper and lower ends of the back side of the strip-shaped fixed frame 3 are welded and fixed with guide blocks 15 in arc structure, and the outer side of the mounting bracket 1 is welded and fixed with a ring-shaped guide seat 14 matched with the structure of the guide block 15. When the servo motor 2 drives the strip-shaped fixed frame 3 to rotate, the guide block 15 can slide along the track of the ring-shaped guide seat 14, ensuring the stability and accuracy of the strip-shaped fixed frame 3 during rotation. Through the close cooperation between the guide block 15 and the ring-shaped guide seat 14, not only can the shaking or deviation of the strip-shaped fixed frame 3 during high-speed rotation be effectively reduced, but also the correct alignment position of the strip-shaped fixed frame 3 during rotation can be ensured. The outer side of the limiting ring 12 is fixed with a fastening ring 13, and the fastening ring 13 and the limiting ring 12 are designed as a concentric integral structure. The inner walls of the upper and lower ends of the fastening ring 13 are provided with arc-shaped expansion slots, and the arc-shaped expansion slots are connected with clamping pieces 16 through elastic pads. The clamping pieces 16 are also in arc structure, and the middle of the clamping pieces 16 is provided with a lifting shaft 17 penetrating through the fastening ring 13. When it is necessary to adjust or fix the position of the limiting ring 12 on the fixed guide wheel 6 or the dynamic guide wheel 7 in the transverse direction, the position of the clamping piece 16 in the arc-shaped expansion slot can be adjusted by operating the lifting shaft 17. The elastic force provided by the elastic pad ensures that the clamping piece 16 can tightly fit the two sides of the wheel, realizing stable clamping effect. This makes the limiting ring 12 not only able to adjust along the axial direction of the wheel to adapt to different packaging requirements, but also further improves the packaging quality of the final product.
[0018] Working principle: When using the film automatic positioning device on the stretch film packaging machine, first, fix the mounting bracket 1 on the appropriate position through the mounting holes at the upper and lower ends, then start the servo motor 2, and the servo motor 2 drives the strip-shaped fixed frame 3 to rotate through the rotating shaft. At the same time, the arc-shaped structure guide block 15 at the upper and lower ends of the back side of the strip-shaped fixed frame 3 slides along the ring-shaped guide seat 14. Then, the positioning frame 5 is driven by the linear guide rail 4 to adjust the position accurately, so that the fixed guide wheel 6 and the dynamic guide wheel 7 in the positioning frame 5 can move to the specified position quickly as needed. Subsequently, the film is guided to pass through the gap between the fixed guide wheel 6 and the dynamic guide wheel 7 for subsequent packaging operation. When it is necessary to adjust the position of the dynamic guide wheel 7, start the air cylinder 10, and the air cylinder 10 drives or pulls the corresponding sliding block 8 through the linkage 11 fixed on the output end, thereby driving the dynamic guide wheel 7 to adjust the position accurately, realizing the rapid and accurate positioning of the film. When it is necessary to adjust the position of the limiting ring 12, the operator can pre-adjust the position of the clamping piece 16 in the arc-shaped expansion slot on the inner wall of the upper and lower ends of the fastening ring 13 by operating the lifting shaft 17. The elastic force provided by the elastic pad ensures that the clamping piece 16 tightly fits the two sides of the fixed guide wheel 6 or the dynamic guide wheel 7, thereby completing a series of work.
[0019] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An automatic film positioning device on a stretch film packaging machine, comprising a mounting bracket (1), characterized in that: The outer side of the mounting bracket (1) is provided with a servo motor (2), the inner side of the mounting bracket (1) is provided with a strip-shaped fixed frame (3) driven to rotate by the servo motor (2), the outer side of the strip-shaped fixed frame (3) is driven with a positioning frame (5) through a linear guide rail (4), the inner side of the positioning frame (5) is respectively provided with a solid guide wheel (6) and a dynamic guide wheel (7), one side of the outer side of the positioning frame (5) is provided with an automatic fine adjustment mechanism composed of a pneumatic cylinder (10) and a linkage (11), the automatic fine adjustment mechanism is used for adjusting the relative position of the dynamic guide wheel (7) and the solid guide wheel (6), and the outer sides of both ends of the solid guide wheel (6) and the dynamic guide wheel (7) are sleeved with a transversely adjustable limiting ring (12).
2. An automatic film positioning device on a stretch film wrapping machine according to claim 1, characterized in that: Both ends of the dynamic guide wheel (7) are provided with sliding blocks (8), and the inner walls of both sides of the upper end of the positioning frame (5) are provided with sliding grooves (9) matched with the structures of the sliding blocks (8).
3. An automatic film positioning device on a stretch film wrapping machine according to claim 2, characterized in that: The pneumatic cylinder (10) is vertically fixed on the side outer wall of the outer end of the positioning frame (5), the linkage (11) is fixed on the output end of the pneumatic cylinder (10), and the side wall of the outer end of the positioning frame (5) is provided with a strip-shaped movable port matched with the structure of the linkage (11), the inner end of the linkage (11) penetrates through the strip-shaped movable port on the positioning frame (5) and is fixedly connected with the corresponding sliding block (8).
4. An automatic film positioning device on a stretch film wrapping machine according to claim 1, characterized in that: Both upper and lower ends of the back side of the strip-shaped fixed frame (3) are provided with arc-shaped guide blocks (15), and the outer side of the mounting bracket (1) is provided with an annular guide seat (14) matched with the structure of the guide block (15).
5. An automatic film positioning device for a stretch film wrapping machine according to claim 1, characterized in that: The outer side of the limiting ring (12) is fixed with a fastening ring (13), and the fastening ring (13) and the limiting ring (12) are designed as a concentric integral structure.
6. An automatic film positioning device on a stretch film wrapping machine according to claim 5, characterized in that: Arc-shaped expansion grooves are formed in the inner walls of both upper and lower ends of the fastening ring (13), clamping pieces (16) are connected in the arc-shaped expansion grooves of both upper and lower ends of the fastening ring (13) through elastic pads, and a lifting shaft (17) penetrating through the fastening ring (13) is arranged in the middle of the clamping piece (16).