A film picking rod quick dismounting device

Abstract

The utility model discloses a kind of quick dismounting devices of film picking rod, relate to automatic film package production line, including the film picking chain on the film picking device of winding film package machine, including the connecting shaft of plug-in fixed in the one side of fixed block, the connecting shaft is fixed in the film picking chain;The other side of the fixed block is equipped with the plug-in interface for the film picking rod insertion, the plug-in interface with the one side of the fixed block is equipped with slideway intercommunication, still include baffle, it is slidably assembled in the fixed block, its side surface is fixedly provided with protruding portion through the slideway to contact with the lateral wall of film picking rod;The pressing block is slidably arranged in the trapezoidal hole groove of the one side of fixed block, the lateral wall of the pressing block is lower than the lateral wall of the film picking rod.The utility model realizes the tool-free dismounting of film picking rod.

Description

Technical Field

[0001] This utility model relates to an automatic film wrapping production line, specifically a quick disassembly device for a film picking rod. Background Technology

[0002] The application of the film-picking device in an automated film wrapping production line is crucial. Its detailed structure can be found in Chinese Patent No. CN202557861U, published on 2012-02-01-01, which discloses a film wrapping device for a film wrapping machine. In this patent, the circulation direction of the film-picking crossbar is the same as the circulation direction of the conveyor belt. The circulation route of the film-picking crossbar is: from bottom to top, passing before the starting point of the conveyor belt, then gradually moving upwards and downwards, and finally from top to bottom, passing after the ending point of the conveyor belt. The film-picking device immediately lifts the film after it enters the wrapping device, reducing the length of the film in the conveying direction, thereby shortening the distance between items and improving the wrapping efficiency.

[0003] The main actuating component of the aforementioned film-picking device is the film-picking crossbar (film-picking rod). In short, the performance of the film-picking rod directly determines the tension, alignment accuracy, and overall packaging efficiency of the stretch film. However, in actual production operations, due to the need to adapt to different packaging specifications or due to normal wear and tear, the film-picking rod in the film-picking assembly needs to be replaced frequently.

[0004] Current technologies use three-point or two-point screw fixing for the film-lifting rod. While this makes disassembly and assembly simple, it still requires tools corresponding to the screw type. Eliminating the need for tools during disassembly and assembly would further simplify the process. Utility Model Content

[0005] The purpose of this invention is to provide a quick disassembly device for the film-picking rod, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick disassembly device for a film-picking rod, comprising a film-picking chain on a film-picking device of a wrapping machine, and a connecting shaft inserted and fixed to one side of a fixing block, wherein the connecting shaft is fixed to the film-picking chain;

[0007] The other side of the fixing block is provided with an insertion interface for inserting the film-picking rod. The insertion interface is connected to a slide rail on one side of the fixing block. It also includes a baffle that is slidably mounted on the fixing block. A protrusion is fixedly provided on its side, which passes through the slide rail to contact the side wall of the film-picking rod.

[0008] A pressure block is slidably disposed in the trapezoidal slot on one side of the fixing block, and the side wall of the pressure block is lower than the side wall of the film-picking rod.

[0009] Preferably, a pin hole is provided on one side of the fixing block, and a plane is distributed in the side wall of the connecting shaft located in the pin hole, and the pin inserted in the hole contacts the plane to form a fixation.

[0010] Preferably, the number of connecting shafts is two, and the pins are distributed between the two.

[0011] Preferably, a pressure plate is also included, which is fixed to the fixing block by screw threads and used to press the pressure block and the pin.

[0012] Preferably, a recessed groove is provided on the end face of the pressure block, and an equidistant spring is provided in the recessed groove to contact the pressure block.

[0013] Preferably, the fixing block is fixedly installed with a sliding shaft that slides with the baffle, and the baffle is pushed and held at the location near the insertion port by a compression spring sleeved on the sliding shaft.

[0014] Preferably, one side of the pressure block extends into the insertion interface as a contact surface.

[0015] Preferably, the contact surface is divided into a contact plane and an inclined plane, with the contact plane located at a high position on the inclined plane, while the inclined plane is distributed towards the insertion interface.

[0016] Preferably, the port of the connector has a chamfered edge.

[0017] Preferably, the slide rail includes a receiving groove that is not connected to the insertion interface, and the specifications of the receiving groove are the same as those of the protrusion.

[0018] In the above technical solution, the quick disassembly device for the film-picking rod provided by this utility model has the following beneficial effects: by moving the baffle along the guide rail, it disengages from the insertion interface. At this time, the contact between the baffle and the side of the film-picking rod is released, and then the new film-picking rod can be directly inserted and removed. After the baffle is reset, it abuts and locks the side of the film-picking rod, while the pressure block abuts against the other side wall of the film-picking rod, so that the other two side walls of the film-picking rod abut against the insertion interface, thereby completing the limiting and locking operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0021] Figure 2 A cross-sectional structural schematic diagram provided for an embodiment of this utility model;

[0022] Figure 3 This is a top view structural diagram provided for an embodiment of the present utility model;

[0023] Figure 4 This is a side view structural diagram provided for an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Fixing block; 1-1. Insertion interface; 1-2. Slide rail; 2. Pressure plate; 3. Equidistant spring; 4. Pressure block; 4-1. Contact surface; 5. Pin; 6. Baffle; 7. Sliding shaft; 8. Compression spring; 9. Connecting shaft; 10. Set screw; 11. Screw. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] See Figures 1 to 4 This embodiment provides the core basic structure of a quick disassembly device for a film-lifting rod. This device aims to achieve tool-free, quick assembly and disassembly of the film-lifting rod, and its core components include a fixing block 1, a connecting shaft 9, a baffle 6, and a pressure block 4.

[0029] The fixing block 1 is the main structure of the device. One side of it is welded and fixed to the film-picking chain of the wrapping machine via a connecting shaft 9, thereby installing the entire device on the production line. The other side of the fixing block 1 has an insertion interface 1-1 for inserting the film-picking rod. The main body of the film-picking rod is circular, but its end that mates with the insertion interface 1-1 is a long rectangular structure to ensure that it does not rotate after insertion.

[0030] To achieve rapid locking and releasing of the film-lifting rod, a slide 1-2 communicating with the insertion interface 1-1 is provided on the fixing block 1. A baffle 6 is slidably mounted on the fixing block 1, and a protrusion is fixedly provided on its side. This protrusion passes through the slide 1-2 and extends into the insertion interface 1-1, thus contacting the side wall of the film-lifting rod. A pressure block 4 is slidably disposed in a trapezoidal slot on one side of the fixing block 1, and the side wall height of the pressure block 4 is lower than the side wall of the film-lifting rod to ensure no interference. The baffle 6 and the pressure block 4 are located on adjacent sides of the insertion interface 1-1, thereby constraining the inserted film-lifting rod from different directions.

[0031] Working principle: When it is necessary to replace the film-picking rod, the operator only needs to slide the baffle 6 by hand, causing its protrusion to move along the slide rail 1-2, thereby disengaging from the side wall of the film-picking rod. At this time, the lock is released, and the old film-picking rod can be directly pulled out of the insertion interface 1-1 by hand. After inserting the new film-picking rod, the baffle 6 is released, and it automatically returns to its original position under the action of the reset mechanism, with its protrusion again abutting against one side of the film-picking rod; at the same time, the pressure block 4 abuts against the other side wall of the film-picking rod under the action of its own structure or elastic element. In this way, the other two side walls of the film-picking rod are firmly abutted against the inner wall of the insertion interface 1-1, and the limiting lock is completed through multi-point contact.

[0032] Example 2

[0033] Based on Embodiment 1, this embodiment further optimizes and specifies the fixing and elastic clamping structure of the device to improve overall stability and ease of operation.

[0034] like Figure 1 and Figure 2 As shown, to ensure a secure connection between the connecting shaft 9 and the fixing block 1 without relative rotation, a pin hole is provided on one side of the fixing block 1. A flat surface is machined into the side wall of the connecting shaft 9, directly facing the pin hole. A pin 5 is inserted into the pin hole and contacts this flat surface, effectively preventing rotation of the connecting shaft 9 through surface contact, thus forming a reliable fixation. Preferably, there are two connecting shafts 9 to provide more stable support, and the pin 5 is located between these two connecting shafts 9.

[0035] To further integrate and secure the internal components, a pressure plate 2 is added in this embodiment. The pressure plate 2 is threaded onto the fixing block 1 by screws 11, which simultaneously presses the internal pressure block 4 and pin 5 into the fixing block 1 to prevent them from loosening during operation.

[0036] Regarding the elastic clamping function of the pressure block 4, this embodiment provides a specific implementation method: a recessed groove is provided on the end face of the pressure block 4, and an equidistant spring 3 is provided in the recessed groove. One end of the equidistant spring 3 acts on the bottom of the recessed groove, and the other end acts on the trapezoidal hole groove wall of the fixing block 1, thereby providing the pressure block 4 with a continuous elastic pre-tightening force towards the insertion interface 1-1, so that it can automatically adapt and tightly abut against the side wall of the film lifting rod.

[0037] Example 3

[0038] This embodiment is a further improvement on the aforementioned embodiment, particularly in the specific design of the reset mechanism of the baffle 6, the contact surface shape of the pressure block 4, and the guiding details of the insertion interface 1-1.

[0039] See Figure 1To achieve automatic reset of the baffle 6, a sliding shaft 7 is fixedly installed on the fixed block 1. The baffle 6 and the sliding shaft 7 form a sliding fit. A set of compression springs 8 is provided on the sliding shaft 7, with its two ends acting on the fixed block 1 and the baffle 6 respectively, thereby providing a continuous pushing force to the baffle 6, so that it always remains in the position of its protrusion near the insertion interface 1-1 port when not in operation, thus achieving normal locking of the film lifting rod.

[0040] To optimize the contact between the pressure block 4 and the film-picking rod, this embodiment features a specially designed contact surface 4-1 for the pressure block 4. This contact surface 4-1 consists of two surface profiles: a high-level contact plane near the port side, and an inclined plane extending towards the interior of the insertion interface 1-1. This design allows the film-picking rod to smoothly push aside the pressure block 4 along the inclined plane during insertion, and provides stable surface contact after positioning via the contact plane, resulting in a better locking effect.

[0041] In addition, to facilitate the insertion of the film-picking rod, the port of the insertion interface 1-1 is chamfered, serving as a guide. Meanwhile, the slide rail 1-2 also includes a receiving groove that is not connected to the insertion interface 1-1; the specifications of this receiving groove are consistent with the specifications of the protrusion on the baffle 6. When the film-picking rod needs to be disassembled and the baffle 6 is slid, the protrusion can slide completely into this receiving groove, thereby completely opening the space of the insertion interface 1-1 and ensuring that the film-picking rod can be removed without obstruction.

[0042] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quick-release device for a film-picking rod, comprising a film-picking chain on a film-picking device of a wrapping machine, characterized in that, Includes a connecting shaft (9) that is plugged into and fixed to one side of the fixing block (1), the connecting shaft (9) being fixed to the film picking chain; The fixed block (1) has an insertion interface (1-1) on the other side for inserting the film-picking rod. The insertion interface (1-1) is connected to a slide (1-2) on one side of the fixed block (1). It also includes a baffle (6), which is slidably mounted on the fixed block (1). A protrusion is fixedly provided on its side, which passes through the slide (1-2) to contact the side wall of the film-picking rod. A pressure block (4) is slidably disposed in the trapezoidal slot on one side of the fixing block (1), and the side wall of the pressure block (4) is lower than the side wall of the film lifting rod.

2. The quick disassembly device for the film-picking rod according to claim 1, characterized in that, The fixing block (1) has a pin hole on one side, and the side wall of the connecting shaft (9) has a plane located in the pin hole, and the pin (5) inserted in the pin hole contacts the plane to form a fixation.

3. The quick disassembly device for the film-picking rod according to claim 2, characterized in that, The number of connecting shafts (9) is two, and the pins (5) are distributed between the two.

4. The quick disassembly device for the film-picking rod according to claim 3, characterized in that, It also includes a pressure plate (2), which is fixed to the fixing block (1) by screws (11) and used to press the pressure block (4) and the pin (5).

5. A quick disassembly device for a film-picking rod according to claim 4, characterized in that, A recessed groove is provided on the end face of the pressure block (4), and an equidistant spring (3) is provided in the recessed groove to contact the pressure block (4).

6. The quick disassembly device for the film-picking rod according to claim 1, characterized in that, The fixing block (1) is fixedly installed with a sliding shaft (7) that is in sliding fit with the baffle (6), and the baffle (6) is pushed and held at the port of the adjacent insertion interface (1-1) by a compression spring (8) sleeved on the sliding shaft (7).

7. The quick disassembly device for the film-picking rod according to claim 1, characterized in that, One side of the pressure block (4) extends into the insertion interface (1-1) as the contact surface (4-1).

8. A quick disassembly device for a film-picking rod according to claim 7, characterized in that, The contact surface (4-1) is divided into a contact plane and an inclined plane according to its formation. The contact plane is located at the high position of the inclined plane, while the inclined plane is distributed towards the insertion interface (1-1).

9. A quick-release device for a film-picking rod according to claim 1, characterized in that, The port of the connector (1-1) has a chamfered edge.

10. A quick-release device for a film-picking rod according to claim 1, characterized in that, The slide (1-2) includes a receiving groove that is not connected to the insertion interface (1-1), and the specifications of the receiving groove are the same as those of the protrusion.

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