A packaging film opening device for a film laminating machine and a packaging film laminating machine thereof

Abstract

The utility model relates to a packaging film opening device for laminating machine, include: rotating mechanism, the rotating mechanism includes rotatable S support, the S support is driven back and forth reciprocating rotation by first drive source. S support is S -shaped, and this shape design is favorable to stable support clamping mechanism, and provides suitable space for its rotation. Second drive source, rotatable setting in one side of the S support is used for providing power. Clamping mechanism, movable setting in one side of the S support, the second drive source can drive the clamping mechanism to each other or far away. The utility model has realized the automatic clamping, rotation and opening of packaging film bag mouth, does not need manual operation, has improved opening efficiency greatly, has reduced labor intensity, can satisfy the demand of large -scale production. The utility model discloses laminating machine for packaging film.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a packaging film opening device for a laminating machine and the packaging film laminating machine thereof. Background Technology

[0002] In the packaging industry, laminating machines are widely used for packaging and laminating various products. During the lamination process, the opening of the packaging film needs to be opened to allow the product to be placed inside. Currently, many laminating machines still rely on manual operation for opening the packaging film, which is not only inefficient but also labor-intensive, making it difficult to meet the needs of large-scale production. Even some laminating machines equipped with mechanical opening devices suffer from problems such as complex structure, poor opening stability, and limited adaptability to different packaging film specifications, affecting the overall quality and efficiency of packaging lamination. Furthermore, the mechanical opening device disclosed in existing patent CN115072063B struggles to stably open the bag opening after clamping the packaging film, easily leading to bag opening deviation and wrinkles, which affect subsequent product placement and lamination operations. Simultaneously, the existing device has a complex drive structure, a high failure rate, and relatively high maintenance costs. Therefore, there is an urgent need for a packaging film opening device for laminating machines that is structurally sound, highly automated, provides stable opening, and has strong adaptability. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a packaging film opening device and a packaging film laminating machine for a laminating machine, so as to solve the problems of low efficiency, poor stability, complex structure and poor adaptability of the existing packaging film opening devices.

[0004] To achieve the above technical solution, the technical solution of this utility model is as follows: A packaging film opening device for a laminating machine, comprising:

[0005] A rotating mechanism includes a rotatably mounted S-bracket; the S-bracket is driven to reciprocate in a reciprocating manner by a first drive source. The S-bracket is S-shaped, a design that facilitates stable support of the clamping mechanism and provides suitable space for its rotation.

[0006] The second drive source is rotatably mounted on one side of the S-bracket to provide power.

[0007] The clamping mechanism is movably disposed on one side of the S-bracket; the second drive source can drive the clamping mechanism to move closer or further apart.

[0008] Wherein: after the symmetrically arranged clamping mechanisms clamp the opening of the packaging film bag, when the first drive source completes the 180° rotation of the S-bracket, the second drive source drives the adjacent clamping mechanisms to move closer to each other to open the bag opening.

[0009] A hollow, through-hole conduit is inserted at the center of the S-bracket. This conduit can be used to thread cables, making the device layout more rational. The first drive source includes a rotary servo drive motor arranged parallel to the axis of the conduit; the output end of the rotary servo drive motor is connected to a hollow rotating platform; the conduit is inserted into the rotating platform. This transmission structure ensures the accuracy and stability of the S-bracket's rotation.

[0010] The second drive source includes a second servo motor; the output end of the second servo motor is connected to a first lead screw drive assembly; a second lead screw drive assembly and a third lead screw drive assembly are provided on both sides of the first lead screw drive assembly; the second servo motor is connected to the second / third lead screw drive assembly via belt drive. Specifically: when the second servo motor drives the second lead screw drive assembly to rotate and complete the clamping mechanism's convergence, it simultaneously drives the third lead screw drive assembly to open and close the clamping mechanism at the other end.

[0011] The first, second, and third lead screw drive assemblies are all symmetrically provided with threads of opposite directions. This design allows the lead screw drive assemblies to drive the components on both sides to move in opposite directions when they rotate, thereby enabling the clamping mechanism to move closer or further apart.

[0012] The clamping mechanism includes a clamping base slidably mounted on the S-bracket; a second drive source can drive the clamping base to reciprocate; a first inner pressure bag bracket and a second inner pressure bag bracket are movably mounted on both sides of the clamping base; the first inner pressure bag bracket is driven to reciprocate by a first pressing power source; the second inner pressure bag bracket is driven to reciprocate by a second pressing power source; each of the first and second inner pressure bag brackets has an L-shaped clamping plate at its end; a bag-pressing assembly that can press against the clamping plate is provided on the opposite surface of the clamping plate; an outer bag-pressing component is provided in front of the first / second inner pressure bag brackets. Wherein: when the second drive source drives the clamping base, it simultaneously drives the outer bag-pressing component to move in the same direction.

[0013] Both sides of the clamping base are detachably equipped with drive racks; the clamping base is rotatably equipped with gears that mesh with the drive racks; the gears are connected to the first pressing power source / second pressing power source through a regular polygonal rotating shaft. This transmission method makes the power transmission more stable and reliable, and facilitates disassembly and maintenance.

[0014] The bag pressing assembly includes a pen cylinder mounted on a clamping base via a cylinder mounting seat; a first pressing head is detachably mounted on the pen cylinder, facilitating the replacement of the appropriate pressing head according to different specifications of packaging film.

[0015] The external pressure bag component includes an external pressure bag base movably mounted on the S-bracket; a second L-shaped clamping plate is provided on one side of the external pressure bag base; a pressing cylinder is provided on the top of the external pressure bag base; a second pressing head is screwed to the output end of the pressing cylinder; a positioning guide element is provided on one side of the second L-shaped clamping plate, which can ensure the accuracy of the external pressure bag component during movement and improve the pressing effect on the packaging film.

[0016] This utility model also provides a packaging film laminating machine, which uses any of the packaging film opening devices described above.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1) This utility model achieves automatic clamping, rotation and opening of the packaging film bag opening through the synergistic action of the first driving source and the second driving source, without the need for manual operation, which greatly improves the opening efficiency, reduces labor intensity and can meet the needs of large-scale production.

[0019] 2) This utility model provides stable support and suitable rotation space for the clamping mechanism through the S-shaped design of the S-bracket; each transmission component adopts servo motor and lead screw transmission, which ensures the accuracy and stability of the action and reduces the occurrence of bag mouth deviation, wrinkles and other issues.

[0020] 3) The first pressure head of the bag pressing assembly and the second pressure head of the outer bag pressing component are both detachable and replaceable, which can adapt to packaging films of different specifications; at the same time, the power output of each drive source is adjustable, further enhancing the adaptability of the device to different packaging films.

[0021] 4) The present invention features a detachable drive rack on the clamping base, with the gear and power source connected by a regular polygonal rotating shaft, which facilitates the disassembly and replacement of parts and reduces maintenance costs. Attached Figure Description

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] Figure 1 This is a front view of the packaging film opening device;

[0024] Figure 2 A three-dimensional diagram of the packaging film opening device;

[0025] Figure 3A 3D diagram of the clamping mechanism;

[0026] Figure 4 This is a 3D view of the external pressure bag component;

[0027] Figure 5 This is a diagram illustrating the opening of the packaging film.

[0028] Figure 6 This is a 3D diagram of a packaging film laminating machine. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Please see the appendix Figures 1 to 6 The diagram illustrates a packaging film laminating machine, comprising a packaging box conveying mechanism and, sequentially arranged, a packaging film conveying mechanism, a packaging film stretching device, a packaging film opening device, a packaging box bag-feeding mechanism, and a packaging film edge trimming mechanism. These mechanisms are used sequentially for conveying packaging boxes, feeding and conveying packaging film, sealing and trimming the sides of the packaging film, pulling out the packaging film to prepare for filling, tearing open the packaging film opening, pushing the packaging box into the opening, and trimming and sealing the edges of the packaging film. The packaging box bag-feeding mechanism, the packaging film sealing and trimming mechanism, and the packaging film opening mechanism are installed close to the packaging box conveying mechanism, enabling the packaging box to be smoothly pushed into the packaging film and packaged. This configuration enables fully automated production of packaging film rolls into packaging bags and packaging boxes, with final edge trimming of the packaging bags, thus improving overall work efficiency. Since the packaging film conveying mechanism, the packaging film stretching device, the packaging box bag-feeding mechanism, and the packaging film edge trimming mechanism are all existing technologies, well-known to those skilled in the art, they will not be described in detail here.

[0032] Based on the above embodiments, the film opening device includes: a rotating mechanism 1, which includes a rotatably mounted S-bracket 11; the S-bracket 11 is driven by a first driving source 12 to rotate back and forth 180° to achieve rapid switching between the packaging film pulling device and the packaging box bag insertion mechanism; a second driving source 2, rotatably mounted on one side of the S-bracket 11, for providing power for clamping the packaging film bag; and a clamping mechanism 3, movably mounted on one side of the S-bracket 11; the second driving source 2 can drive the clamping mechanism 3 to move closer together or further apart.

[0033] In this invention, after the symmetrically arranged clamping mechanisms 3 clamp the opening of the packaging film bag, the first drive source 12 completes the 180° rotation of the S-support 11, and then the second drive source 2 drives the adjacent clamping mechanisms 3 to move closer together to open the bag opening, with the other end positioned to receive the next incoming film bag. This invention achieves automatic clamping, rotation, and opening of the packaging film bag opening through the coordinated action of the rotating mechanism 1, the second drive source 2, and the clamping mechanisms 3. Specifically, after the symmetrically arranged clamping mechanisms 3 clamp the opening of the packaging film bag, the first drive source 12 drives the S-support 11 to rotate 180°, and then the second drive source 2 drives the adjacent clamping mechanisms 3 to move closer together to open the bag opening. This automated operation requires no manual intervention, greatly improving opening efficiency, reducing labor intensity, and meeting the needs of large-scale production. Simultaneously, the entire process is continuous and stable, reducing bag opening deviation and wrinkles, and improving the quality of the packaging film opening.

[0034] Based on the above embodiments, a hollow through-hole cable conduit is inserted centrally into the S-bracket 11 to provide a passage for cable routing; the first drive source 12 includes a rotary servo drive motor arranged parallel to the axis of the cable conduit; the output end of the rotary servo drive motor is driven and connected to a hollow rotating platform; the cable conduit is inserted into the rotating platform. The hollow through-hole cable conduit inserted centrally into the S-bracket 11 provides a dedicated channel for cables inside the device, avoiding problems such as tangling and pulling of cables during device operation, and ensuring the safety and service life of the cables. The first drive source 12 uses a rotary servo drive motor arranged parallel to the axis of the cable conduit and is driven and connected to the S-bracket 11 through the hollow rotating platform. This structural design makes the rotational movement more stable, the transmission accuracy higher, and can accurately control the rotation angle of the S-bracket 11, further improving the accuracy and stability of the packaging film opening.

[0035] Based on the above embodiments, the second drive source 2 includes a second servo motor 21; the output end of the second servo motor 21 is connected to a first lead screw drive assembly 22; a second lead screw drive assembly 23 and a third lead screw drive assembly 24 are provided on both sides of the first lead screw drive assembly 22; the second servo motor 21 is connected to the second lead screw drive assembly 23 / third lead screw drive assembly 24 via belt drive.

[0036] Wherein: the second servo motor 21 drives the second lead screw transmission assembly 23 to rotate to complete the clamping mechanism 3 to gather, and at the same time drives the third lead screw transmission assembly 24 to drive the clamping mechanism 3 at the other end to open and close.

[0037] The second servo motor 21 of the second drive source 2 simultaneously drives the first lead screw drive assembly 22, the second lead screw drive assembly 23, and the third lead screw drive assembly 24 via belt drive, achieving synchronous operation of the clamping mechanism 3. This transmission method has a compact structure, high transmission efficiency, and can ensure the coordination and consistency of multiple clamping mechanisms 3 during operation. When the second servo motor 21 drives the second lead screw drive assembly 23 to rotate and complete the clamping mechanism 3 gathering, it synchronously drives the third lead screw drive assembly 24 to drive the clamping mechanism 3 at the other end to open and close, making the entire opening process smoother and improving work efficiency.

[0038] Based on the above embodiments, the first lead screw drive assembly 22, the second lead screw drive assembly 23, and the third lead screw drive assembly 24 are all symmetrically provided with threads of opposite directions. This design allows the lead screw to drive the clamping mechanisms 3 on both sides to move in opposite directions when rotating, thereby enabling the clamping mechanisms 3 to move closer together or further apart. Compared to traditional driving methods, this thread design is simpler and more reliable, providing greater driving force and ensuring that the clamping mechanisms 3 have sufficient power when clamping and opening the packaging film bag opening, thus improving the stability and reliability of the device.

[0039] Based on the above embodiments, the clamping mechanism 3 includes a clamping base 31 slidably disposed on the S-bracket; the second driving source 2 can drive the clamping base 31 to move back and forth; a first inner pressure bag bracket 32 ​​and a second inner pressure bag bracket 33 are movably disposed on both sides of the clamping base 31; the first inner pressure bag bracket 32 ​​is driven to move back and forth by a first pressing power source 34; the second inner pressure bag bracket 33 is driven to move back and forth by a second pressing power source 38; an L-shaped clamping plate 35 is provided at the end of both the first inner pressure bag bracket 32 ​​and the second inner pressure bag bracket 33; a bag pressing assembly 36 that can press against the clamping plate 35 is provided on the opposite surface of the clamping plate 35; an outer bag pressing component 37 is provided in front of the first inner pressure bag bracket 32 / second inner pressure bag bracket 33.

[0040] Wherein: the second drive source 2 can drive the clamping base 31 and simultaneously drive the outer pressure bag component 37 to move in the same direction. The clamping base 31 of the clamping mechanism 3 is slidably mounted on the S-bracket. The second drive source 2 can drive the clamping base 31 to move back and forth, and simultaneously drive the outer pressure bag component 37 to move in the same direction. This structural design allows the outer pressure bag component 37 to provide auxiliary positioning and pressing of the packaging film from the outside when the clamping mechanism 3 clamps the opening of the packaging film bag, improving the stability and reliability of the clamping. The first inner pressure bag bracket 32 ​​and the second inner pressure bag bracket 33 are driven by the first pressing power source 34 and the second pressing power source 38, respectively, and can be flexibly adjusted according to the thickness and material of the packaging film, further improving the adaptability of the device to different packaging films.

[0041] Based on the above embodiments, the clamping base 31 is detachably provided with drive racks on both sides; the clamping base 31 is detachably provided with gears that mesh with the drive racks; the gears are connected to the first pressing power source 34 / second pressing power source 38 through a regular polygonal rotating shaft.

[0042] The bag-pressing assembly 36 includes a pen-tube cylinder mounted on the clamping base 31 via a cylinder mounting seat; a first pressing head is detachably mounted on the pen-tube cylinder.

[0043] The external pressure bag component 37 includes an external pressure bag base 371 movably mounted on the S-bracket; a second L-shaped clamping plate 372 is provided on one side of the external pressure bag base 371; a pressing cylinder 373 is provided on the top of the external pressure bag base 372; a second pressing head 374 is screwed onto the output end of the pressing cylinder 373; and a positioning guide element 375 is provided on one side of the second L-shaped clamping plate 372. The detachable drive racks and rotatable gears on both sides of the clamping base 31, along with the transmission connection between the gears and the first pressing power source 34 / second pressing power source 38 via a regular polygonal rotating shaft, make the transmission structure of the clamping mechanism 3 simpler and more reliable, and easier to disassemble and maintain. When the device malfunctions or needs to replace parts, it can be quickly disassembled and installed, reducing maintenance time and costs. A first pressing head is detachably mounted on the pen-shaped cylinder of the pressure bag assembly 36, and a second pressing head is screwed onto the output end of the pressing cylinder of the external pressure bag component 37. This design allows the pressing head to be replaced according to different specifications of packaging film, improving the versatility and adaptability of the device. The positioning guide element on one side of the second L-shaped clamp ensures the accuracy of the outer pressure bag component 37 during movement, further improving the pressing effect on the packaging film.

[0044] Please see the appendix Figures 1 to 5As shown: The working process is as follows: When the packaging film bag opening is in position A, the second drive source 2 drives the clamping mechanism (3) to move closer together, so that the L-shaped clamping plate 35 at the end of the first inner pressure bag bracket 32 ​​and the second inner pressure bag bracket 33 cooperates with the bag pressing assembly 36 to clamp the packaging film bag opening. At the same time, the outer pressure bag component 37 also presses and positions the packaging film. Then the first drive source 12 is activated, driving the S bracket 11 to complete a 180° rotation. During the rotation, the adjacent clamping mechanisms 3 move closer together from position A to position B and finally to position C. When it reaches position C, under the action of external air blowing, the overall bag opening action is completed. At the same time as the bag opening is completed, the other end completes the next bag opening docking and clamping. This process is repeated, which effectively improves production efficiency.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments by making some changes or modifications to the above-disclosed technical content without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A packaging film opening device for a laminating machine, characterized in that, The packaging film opening device includes: A rotating mechanism (1) includes an S-bracket (11) that is rotatably mounted; the S-bracket (11) is driven to reciprocate by a first driving source (12); A second drive source (2) is rotatably mounted on one side of the S-bracket (11) to provide power; A clamping mechanism (3) is movably disposed on one side of the S-bracket (11); the second driving source (2) can drive the clamping mechanisms (3) to move closer to each other or further apart; Wherein: after the clamping mechanism (3) clamps the opening of the packaging film bag, when the first drive source (12) completes the action of the S bracket (11) to rotate 180°, the second drive source (2) drives the adjacent clamping mechanism (3) to move closer to each other to complete the opening of the bag.

2. The packaging film opening device as described in claim 1, characterized in that: The S-bracket (11) is fitted with a hollow through-hole conduit at its center position; The first driving source (12) includes a rotary servo drive motor arranged parallel to the axis of the threading pipe; the output end of the rotary servo drive motor is connected to a hollow rotary platform; the threading pipe is inserted into the rotary platform.

3. The packaging film opening device as described in claim 1, characterized in that: The second drive source (2) includes a second servo motor (21); the output end of the second servo motor (21) is connected to a first lead screw drive assembly (22); the first lead screw drive assembly (22) is provided with a second lead screw drive assembly (23) and a third lead screw drive assembly (24) on both sides; the second servo motor (21) is connected to the second lead screw drive assembly (23) / third lead screw drive assembly (24) by belt drive; Wherein: the second servo motor (21) drives the second lead screw transmission assembly (23) to rotate and complete the clamping mechanism (3) to gather the cloth, and at the same time drives the third lead screw transmission assembly (24) to drive the clamping mechanism (3) at the other end to open and close.

4. The packaging film opening device as described in claim 3, characterized in that: The first lead screw drive assembly (22), the second lead screw drive assembly (23), and the third lead screw drive assembly (24) are all symmetrically provided with threads of opposite directions.

5. The packaging film opening device as described in claim 1, characterized in that: The clamping mechanism (3) includes a clamping base (31) slidably disposed on the S-bracket; the second driving source (2) can drive the clamping base (31) to move back and forth; the clamping base (31) is movably provided with a first inner pressure bag bracket (32) and a second inner pressure bag bracket (33) on both sides; the first inner pressure bag bracket (32) is driven to move back and forth by a first pressing power source (34); the second inner pressure bag bracket (33) is driven to move back and forth by a second pressing power source (38); the first inner pressure bag bracket (32) and the second inner pressure bag bracket (33) are both provided with L-shaped clamping plates (35) at their ends; the clamping plates (35) are provided with a bag pressing assembly (36) that can press against them on their opposite surfaces; an outer bag pressing component (37) is provided in front of the first inner pressure bag bracket (32) / the second inner pressure bag bracket (33); Wherein: the second driving source (2) can drive the clamping base (31) and simultaneously drive the outer pressure bag component (37) to move in the same direction.

6. The packaging film opening device as described in claim 5, characterized in that: The clamping base (31) is detachably provided with a drive rack on both sides; the clamping base (31) is provided with a gear that meshes with the drive rack; the gear is connected to the first pressing power source (34) / second pressing power source (38) through a regular polygonal rotating shaft; The bag pressing assembly (36) includes a pen cylinder mounted on the clamping base (31) via a cylinder mounting seat; a first pressing head is detachably mounted on the pen cylinder; The external pressure bag component (37) includes an external pressure bag base (371) movably mounted on the S-bracket; a second L-shaped clamping plate (372) is provided on one side of the external pressure bag base (371); a pressing cylinder (373) is provided on the top of the external pressure bag base (371); a second pressing head (374) is screwed to the output end of the pressing cylinder (373); a positioning guide element (375) is provided on one side of the second L-shaped clamping plate (372).

7. A packaging film laminating machine, characterized in that, The packaging film opening device described in any one of 1-6 above is used.

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