Stretch film winding tool

Abstract

This utility model provides a stretch film winding fixture, belonging to the field of stretch film winding equipment. It includes a handle, with a sleeve rotatably mounted in the middle of the handle, and stretch film wound around the outside of the sleeve. Support beam one and support beam two are mounted at both ends of the handle. A cross brace is installed between the ends of support beam one and support beam two. A sliding guide rail is mounted on the surface of the cross brace, and a groove is formed on the surface of the sliding guide rail. A blade is slidably mounted in the groove, and a sliding button is provided at one end of the blade extending out of the groove. The length of the sliding button is greater than the length of the blade. The beneficial effect of this utility model is that it adopts an embedded blade structure, which can improve the safety of the cutting operation and simplify the tool structure and cutting steps to a certain extent, thereby improving the overall work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of stretch film winding, and specifically relates to a stretch film winding tooling. Background Technology

[0002] In modern industrial production and logistics transportation, stretch film is widely used in the packaging of various products due to its excellent flexibility, stretchability and self-adhesion, so as to protect products, stabilize goods and facilitate transportation.

[0003] Currently, traditional stretch film winding relies heavily on manual operation. Operators must hold the stretch film roll in one hand and pull the film around the object to be packaged with the other, making this purely manual method extremely inefficient. Especially when dealing with large workpieces, it's often difficult for one person to complete the winding operation alone, requiring multiple people to work together. Therefore, if the operators lack coordination, problems such as misalignment and uneven film tension are prone to occur, significantly increasing the difficulty and reducing efficiency. Furthermore, the traditional manual method also has significant drawbacks when cutting the stretch film: if operators rely on brute force to tear the film, the cuts will be uneven, severely affecting the packaging's appearance; if a utility knife is used, the operation is cumbersome as it requires opening the knife separately and interrupting the winding process. Additionally, the sharp blade can easily cause cuts, thus creating a double constraint on production efficiency and operational safety.

[0004] To address these issues, technicians in related fields have actively explored and developed a series of automated or semi-automated stretch film winding equipment. For example, Chinese patent CN216548733U discloses a stretch film structure that addresses some of the drawbacks of traditional manual winding. However, this technical solution employs a relatively complex cutting action design in the stretch film cutting process, still requiring operators to manually open the cutter for cutting. Therefore, it still suffers from problems such as complex equipment structure, cumbersome operation, and low safety. Utility Model Content The purpose of this invention is to address the problems of complex equipment structure, cumbersome operation, and low safety factor of existing stretch film winding equipment by proposing and designing a new type of stretch film winding fixture. It adopts an embedded blade structure, which can not only improve the safety of cutting operations, but also simplify the blade structure and cutting operation steps to a certain extent, thereby improving the overall operation efficiency.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: a stretch film winding fixture, comprising a handle, a sleeve rotatably mounted in the middle of the handle, and a stretch film wound around the outside of the sleeve; a support beam one and a support beam two are mounted at both ends of the handle, a cross brace is mounted between the ends of the support beam one and the support beam two, a sliding guide rail is mounted on the surface of the cross brace, a groove is opened on the surface of the sliding guide rail, a blade is slidably mounted in the groove, a sliding button is provided after one end of the blade extends out of the groove, and the length of the sliding button is greater than the length of the blade. At this point, because the present invention uses an embedded structure to install the blade and positions the blade's cutting edge below the sliding button, the blade can be shielded by the sliding button, which is longer than the blade, preventing the operator from accidentally touching the blade and thus improving the safety of the entire cutting operation. At the same time, when using the present invention for cutting operations, only a light press of the sliding button with a finger is needed to drive the blade located between the sliding button and the sliding guide rail to perform the cutting operation, thereby smoothly achieving the cutting of the stretch film. Moreover, the end is flat and aesthetically pleasing, and there is no need for other operations such as removing the protective cover, effectively ensuring the continuity of the entire operation process.

[0006] Furthermore, an abutment is provided on the side of the sliding button near the slide groove. The abutment abuts against the surface of the sliding guide rail to prevent the blade from falling completely into the slide groove, thus preventing the cutting operation from being completed.

[0007] Furthermore, a locking block is installed after the end of the blade extends into the groove, and the locking block prevents the blade from falling out of the groove.

[0008] Furthermore, the handle is provided with an external thread section one and an external thread section two at its two ends respectively. One end of the handle is threaded to the threaded hole at the end of the support beam one through the external thread section one, and the other end of the handle passes through the smooth hole at the end of the support beam two and is threaded to a nut through the external thread section two, and the nut is used to axially tighten the support beam two.

[0009] Furthermore, a mounting seat 1 is provided between the support beam 1 and the sleeve. The mounting seat 1 is rotatably mounted on the handle via a bearing 1. A stepped stop 1 is provided on the end of the mounting seat 1 facing the sleeve, and the stepped stop 1 abuts against the sleeve. A mounting seat 2 is provided between the support beam 2 and the sleeve. The mounting seat 2 is rotatably mounted on the handle via a bearing 2. A stepped stop 2 is provided on the end of the mounting seat 2 facing the sleeve, and the stepped stop 2 abuts against the sleeve. Thus, the sleeve can be rotatably mounted on the handle through the mounting seats 1 and 2.

[0010] Furthermore, a retaining ring 1 is provided between bearing 1 and support beam 1, and a retaining ring 2 is provided between bearing 2 and support beam 2. Bearing 1 and bearing 2 are axially positioned by retaining ring 1 and retaining ring 2 at the two positions, respectively.

[0011] Furthermore, the end of the first support beam is detachably connected to the end of the cross brace via a first fastener, and the end of the second support beam is detachably connected to the end of the cross brace via a second fastener. Both the first and second fasteners are preferably screws.

[0012] Furthermore, the handle is a hollow tube to reduce the overall weight of the handle and make it easier for operators to hold the handle with one hand for operation.

[0013] Furthermore, the materials for support beam one, support beam two, and cross brace are aluminum to ensure that the overall structure is relatively lightweight.

[0014] Furthermore, mounting base one and mounting base two are made of polyurethane to ensure a lighter overall structure.

[0015] As can be seen from the above technical solutions, this utility model has the following advantages: First, this utility model can realize single-person operation, thereby changing the traditional multi-person operation mode of box making and reducing labor costs; Second, this utility model can not only solve the aesthetic problem of uneven fracture when the stretch film is broken, but also simplify the cutting process and effectively avoid safety problems during the use of the cutting tool. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model; Figure 2 This is a schematic diagram of the installation of the blade in this utility model; Figure 3 This is a schematic diagram of the handle structure in this utility model; Figure 4 This is a structural schematic diagram of the support beam one in this utility model; Figure 5 This is a schematic diagram of the structure of the second supporting beam in this utility model; Figure 6 This is a schematic diagram of the cross brace structure in this utility model; Figure 7 This is a schematic diagram of the structure of the retaining ring one in this utility model; Figure 8 This is a schematic diagram of the structure of mounting base two in this utility model.

[0018] In the diagram: 1. Handle; 2. Support beam one; 3. Cross brace; 4. Sliding guide rail; 5. Sliding button; 6. Support beam two; 7. Fastener one; 8. Fastener two; 9. Nut; 10. Retaining ring two; 11. Mounting base two; 12. Bearing two; 13. Mounting base one; 14. Bearing one; 15. Retaining ring one; 16. Sleeve; 17. Stretch membrane; 18. Blade; 19. Clamping block; 20. Slide groove; 21. External thread section one; 22. External thread section two; 23. Threaded hole; 24. Plain hole; 25. Stepped stop two; 26. Abutment part. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] like Figures 1 to 8 As shown, this utility model provides a stretch film winding fixture, which includes a handle 1. The handle 1 is preferably a hollow tube made of lightweight metal such as aluminum. The two ends of the handle 1 are respectively provided with an external thread section 21 and an external thread section 22. The middle part of the handle 1 is sequentially fitted with a support beam 2, a mounting seat 13, a sleeve 16, a mounting seat 11, a support beam 6, and a nut 9.

[0021] One end of the support beam 2 has a threaded hole 23, which is threaded to the external thread section 21 at the end of the handle 1. The mounting base 13 is rotatably mounted on the handle 1 via a bearing 14, and a retaining ring 15 is provided between the bearing 14 and the support beam 2, so that the retaining ring 15 abuts against both the bearing 14 and the support beam 2 to axially position the bearing 14. The end of the mounting base 13 facing the sleeve 16 has a stepped stop, which abuts against the end of the sleeve 16. The second mounting base 11 is rotatably mounted on the handle 1 via a bearing 12, and the end of the second mounting base 11 facing the sleeve 16 has a stepped stop 25, which abuts against the sleeve 16 to axially tighten the sleeve 16. A retaining ring 10 is provided between the bearing 12 and the support beam 6, and the retaining ring 10 abuts against both the bearing 12 and the support beam 6 to axially position the bearing 12. One end of the support beam 6 has a hole 24, through which it is slidably mounted on the handle 1. The nut 9 is threaded onto the external thread section 22 of the handle 1, and axially presses the support beam 6.

[0022] Meanwhile, this utility model also installs a cross brace 3 between the end of the first support beam 2 and the end of the second support beam 6. One end of the cross brace 3 is detachably connected to the first support beam 2 away from the handle 1 by a fastener such as a screw 7, and the other end of the cross brace 3 is detachably connected to the second support beam 6 away from the handle 1 by a fastener such as a screw 8. Furthermore, a sliding guide rail 4 is installed in the middle of the cross brace 3. The sliding guide rail 4 is preferably a C-shaped rail. A groove 20 is provided on the surface of the sliding guide rail 4. A blade 18 is slidably installed in the groove 20 along the length of the handle 1. One end of the blade 18 extends into the groove 20 and is fitted with a locking block 19 to prevent the blade 18 from falling out of the groove 20. A sliding button 5 is provided at the other end of the blade 18 after it extends out of the groove 20. The length of the sliding button 5 is greater than the length of the blade 18. An abutting part 26 is provided on the side of the sliding button 5 near the groove 20. The abutting part 26 abuts against the surface of the sliding guide rail 4. In this way, the contact between the abutment part 26 at the end of the sliding button 5 and the slide groove 20 can prevent the blade 18 from falling completely into the slide groove 20, thus preventing the cutting operation from being completed. At the same time, the narrow part on the blade 18 located between the sliding guide rail 4 and the sliding button 5 can ensure that the blade 18 can perform the cutting function. The sliding button 5, which is longer than the blade 18 and whose edges extend to the outside of the blade 18, can protect the blade 18 and prevent the operator from accidentally touching the blade 18, thereby improving the safety of the entire cutting operation.

[0023] Based on this, in actual operation, a single person can first hold the handle 1 to pick up the fixture and spread the stretch film 17 onto the workpiece to be wrapped. Then, the person holds the fixture and rotates it along the workpiece until the workpiece is completely wrapped. Next, the person lightly presses the sliding button 5 and slides it within the sliding guide rail 4 to smoothly cut the stretch film 17. Moreover, since the cutting edge of the blade 18 is between the sliding guide rail 4 and the sliding button 5, it can both cut the stretch film 17 and protect the operator and the blade from injury, making the operation safe and reliable. At the same time, this utility model also has the characteristics of reasonable overall structure, convenient installation, simple structure, high reliability, and easy daily operation and maintenance.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stretch film winding fixture, comprising a handle (1), a sleeve (16) rotatably mounted on the middle of the handle (1), and a stretch film (17) wound around the outside of the sleeve (16); characterized in that, The handle (1) is equipped with a support beam 1 (2) and a support beam 2 (6) at both ends. A cross brace (3) is installed between the end of the support beam 1 (2) and the end of the support beam 2 (6). A sliding guide rail (4) is installed on the surface of the cross brace (3). A sliding groove (20) is opened on the surface of the sliding guide rail (4). A blade (18) is slidably installed at the sliding groove (20). A sliding button (5) is set after one end of the blade (18) extends out of the sliding groove (20). The length of the sliding button (5) is greater than the length of the blade (18).

2. The stretch film winding fixture according to claim 1, characterized in that, A contact part (26) is provided on the side of the sliding button (5) near the slide groove (20), and the contact part (26) abuts against the surface of the sliding guide rail (4).

3. The stretch film winding fixture according to claim 2, characterized in that, The end of the blade (18) extends into the groove (20) and is fitted with a locking block (19).

4. The stretch film winding fixture according to claim 1, characterized in that, The handle (1) has an external thread section one (21) and an external thread section two (22) at its two ends respectively. One end of the handle (1) is threaded to the threaded hole (23) at the end of the support beam one (2) through the external thread section one (21). The other end of the handle (1) passes through the light hole (24) at the end of the support beam two (6) and is threaded to the nut (9) through the external thread section two (22).

5. The stretch film winding fixture according to claim 1, characterized in that, A mounting seat 1 (13) is provided between the support beam 1 (2) and the sleeve (16). The mounting seat 1 (13) is rotatably mounted on the handle (1) via the bearing 1 (14). A stepped stop 1 is provided on the end of the mounting seat 1 (13) facing the sleeve (16), and the stepped stop 1 abuts against the sleeve (16). A mounting seat 2 (11) is provided between the support beam 2 (6) and the sleeve (16). The mounting seat 2 (11) is rotatably mounted on the handle (1) via the bearing 2 (12). A stepped stop 2 (25) is provided on the end of the mounting seat 2 (11) facing the sleeve (16), and the stepped stop 2 (25) abuts against the sleeve (16).

6. The stretch film winding fixture according to claim 5, characterized in that, A retaining ring 1 (15) is provided between bearing 1 (14) and support beam 1 (2), and a retaining ring 2 (10) is provided between bearing 2 (12) and support beam 2 (6).

7. The stretch film winding fixture according to claim 1, characterized in that, The end of support beam 1 (2) is detachably connected to the end of cross brace (3) by fastener 1 (7), and the end of support beam 2 (6) is detachably connected to the end of cross brace (3) by fastener 2 (8).

8. The stretch film winding fixture according to claim 1, characterized in that, The handle (1) is a hollow tube.

9. The stretch film winding fixture according to claim 1, characterized in that, The materials of support beam 1 (2), support beam 2 (6), and cross brace (3) are aluminum.

10. The stretch film winding fixture according to claim 5, characterized in that, Mounting base one (13) and mounting base two (11) are made of polyurethane.

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