Protective frame for plastic packaging material processing

Abstract

The utility model relates to the technical field of protective frames, and discloses a protective frame for processing plastic packaging materials, which comprises a protective plate, a window is arranged on the protective plate, a protective cover is arranged on the rear side of the window, the upper end of the protective cover is rotatably hinged with the rear side wall of the protective plate, and an arc-shaped limiting strip is mounted at the top of the protective cover. A clamping groove is formed in the inner side of the arc-shaped limiting strip, and an abutting plate is arranged on the lower side of the protective cover. When materials in equipment are subjected to casual inspection, after the equipment is stopped, the protective cover is pushed inwards, the protective cover is overturned upwards, at the moment, a limiting rod in a limiting sleeve on the front side of a protective plate moves upwards under limiting of a limiting bolt and abutting of a spring, a clamping plate at the upper end of the limiting rod is connected with a clamping groove in an arc-shaped limiting strip in a clamped mode, and the overturned protective cover is limited; after materials needing to be subjected to spot check are taken out, the pressing plate can be pressed to enable the clamping plate to be disengaged from clamping of the clamping groove, at the moment, the protective cover automatically turns over and falls down under the dead weight, and then clamping and limiting are conducted through the clamping plate again.

Description

Technical Field

[0001] This utility model relates to the field of protective frame technology, specifically a protective frame for processing plastic packaging materials. Background Technology

[0002] In the packaging process of manufacturing, plastic packaging materials are widely used due to their lightweight, durability, and low cost. However, because plastic packaging material blanks come in various shapes, they often need to be cut, segmented, and trimmed to meet specific packaging requirements. These processes can generate debris and other flying particles, necessitating the use of protective frames during the processing of plastic packaging materials.

[0003] In the actual processing of plastic packaging materials, random inspection of the materials is required. Existing protective frames typically include sliding rails and sliding doors, allowing for inspection of materials through a temporary window created by the sliding doors. However, as flying debris enters the sliding rails, or larger particles collide with the rails and sliding doors, causing deformation, the sliding doors become stiff and difficult to open and close. Therefore, those skilled in the art have provided a protective frame for processing plastic packaging materials to solve the problems mentioned in the background. Utility Model Content

[0004] (1) Technical problems solved

[0005] To address the shortcomings of existing technologies, this utility model provides a protective frame for processing plastic packaging materials. This solves the problem that existing protective frames typically include sliding rails and sliding doors, with the temporary window formed by the sliding door used for random inspection of materials on the equipment. However, problems arise when flying debris enters the sliding rails, or when larger particles collide with the rails and sliding doors, causing rail deformation. This results in the sliding door moving awkwardly within the rails and being difficult to open and close.

[0006] (2) Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a protective frame for processing plastic packaging materials, comprising a protective plate, a window on the protective plate, a protective cover on the rear side of the window, the upper end of the protective cover being rotatably hinged to the rear side wall of the protective plate, an arc-shaped limiting strip installed on the top of the protective cover, a slot on the inner side of the arc-shaped limiting strip, a pressure plate on the lower side of the protective cover, a limiting sleeve installed on the front side wall of the protective plate, a limiting rod slidably sleeved inside the limiting sleeve, a clamping plate installed on the top of the limiting rod, a pressure plate installed at the bottom of the limiting rod, a limiting bolt installed below the pressure plate, and a spring sleeved on the limiting bolt.

[0008] Preferably, the bottom end of the limiting bolt is fixedly connected to the protective plate, and a limiting through hole is provided on the pressure plate, through which the limiting bolt is slidably sleeved with the pressure plate.

[0009] Preferably, the upper end of the spring is in contact with the bottom side of the pressure plate, the lower end of the spring is in contact with the lower end of the limiting bolt, the protective plate has an arc-shaped through hole, the arc-shaped limiting strip is rotatably inserted into the arc-shaped through hole, the locking plate is inserted into the slot on the arc-shaped limiting strip, and the locking plate on the limiting rod is lifted by the spring and the limiting rod so that it is engaged with the slot in the arc-shaped limiting strip, thereby limiting the protective cover after it is flipped.

[0010] Preferably, a rubber strip is installed on the end of the pressure plate facing the protective cover. The protective cover is in contact with the rubber strip under pressure. When the protective cover flips and falls on its own, the rubber strip can cushion and protect the protective cover.

[0011] Preferably, a support plate is rotatably hinged to the front side of the protective plate, and a support block is installed on the bottom side of the support plate near one end of the protective plate. One end of the support block is in abutting contact with the protective plate. A first magnetic sheet is installed on the support plate, and a second magnetic sheet is installed on the protective plate. The first magnetic sheet and the second magnetic sheet are magnetically connected. When the support plate is not in use, it can be flipped over and fitted with the protective plate, thereby reducing the space occupied by the support plate and preventing workers from bumping into it.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a protective frame for processing plastic packaging materials, which has the following beneficial effects:

[0014] By designing a system for sampling materials inside the equipment, after stopping the equipment, the protective cover is pushed inward and flipped upward. At this time, the limiting rod in the limiting sleeve on the front side of the protective plate moves upward under the limiting bolt and the pressure of the spring. The locking plate at the upper end of the limiting rod engages with the slot in the arc-shaped limiting strip, limiting the flipped protective cover. After the materials to be sampled are removed, the pressure plate can be pressed to disengage the locking plate from the slot. At this time, the protective cover flips down by its own weight and is then locked again by the locking plate. In this structure, the flipping mechanism enables the opening and closing of the window, avoiding the problem of stiff sliding doors and difficulty in opening and closing windows that occurs with traditional track-operated windows. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a protective frame for processing plastic packaging materials provided in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the structure of the protective cover in a protective frame for processing plastic packaging materials provided in an embodiment of this application.

[0017] Figure 3 This is a schematic diagram of the flipping of the protective cover in a protective frame for processing plastic packaging materials provided in an embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the structure of the pressure plate in a protective frame for processing plastic packaging materials provided in an embodiment of this application.

[0019] Figure 5 This is a schematic diagram of the structure of a pressure plate in a protective frame for processing plastic packaging materials, provided in an embodiment of this application.

[0020] In the diagram: 1. Protective plate; 2. Support plate; 3. First magnetic piece; 4. Support block; 5. Second magnetic piece; 6. Window; 7. Protective cover; 8. Arc-shaped limiting strip; 9. Slot; 10. Pressure plate; 11. Rubber strip; 12. Arc-shaped through hole; 13. Limiting sleeve; 14. Limiting rod; 15. Card plate; 16. Pressure plate; 161. Limiting through hole; 17. Limiting bolt; 18. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0022] This utility model provides a technical solution: a protective frame for processing plastic packaging materials. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The system includes a protective plate 1, a window 6 on the protective plate 1, a protective cover 7 on the rear side of the window 6, the upper end of the protective cover 7 being rotatably hinged to the rear side wall of the protective plate 1, an arc-shaped limiting strip 8 installed on the top of the protective cover 7, a slot 9 on the inner side of the arc-shaped limiting strip 8, a pressure plate 10 on the lower side of the protective cover 7, a limiting sleeve 13 installed on the front side wall of the protective plate 1, a limiting rod 14 slidably sleeved inside the limiting sleeve 13, a clamping plate 15 installed on the top of the limiting rod 14, a pressure plate 16 installed at the bottom end of the limiting rod 14, a limiting bolt 17 below the pressure plate 16, and a spring 18 sleeved on the limiting bolt 17.

[0023] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5The bottom end of the limiting bolt 17 is fixedly connected to the protective plate 1. The pressure plate 16 has a limiting through hole 161. The limiting bolt 17 is slidably sleeved with the pressure plate 16 through the limiting through hole 161. The upper end of the spring 18 is pressed against the bottom side of the pressure plate 16, and the bottom end of the spring 18 is pressed against the bottom end of the limiting bolt 17. The protective plate 1 has an arc-shaped through hole 12. The arc-shaped limiting strip 8 is rotatably inserted into the arc-shaped through hole 12. The locking plate 15 is inserted into the locking groove 9 on the arc-shaped limiting strip 8. The locking plate 15 on the limiting rod 14 is lifted by the spring 18 and the limiting rod 14, so that it is locked into the locking groove 9 in the arc-shaped limiting strip 8, thereby limiting the flipped protective cover 7. A rubber strip 11 is installed on one end of the pressure plate 10 facing the protective cover 7. The protective cover 7 is pressed against the rubber strip 11. When the protective cover 7 flips and falls by itself, the rubber strip 11 can buffer and protect the protective cover 7.

[0024] Please see Figure 1 The front side of the protective plate 1 is rotatably hinged to a support plate 2. A support block 4 is installed on the bottom side of the support plate 2 near the protective plate 1. One end of the support block 4 is in abutting contact with the protective plate 1. A first magnetic sheet 3 is installed on the support plate 2, and a second magnetic sheet 5 is installed on the protective plate 1. The first magnetic sheet 3 and the second magnetic sheet 5 are magnetically connected. When the support plate 2 is not in use, it can be flipped over and fitted with the protective plate 1, thereby reducing the space occupied by the support plate 2 and preventing workers from bumping into it.

[0025] The protective frame for processing plastic packaging materials in this utility model is plate-shaped and includes a protective plate 1. A window 6 is provided on one side of the protective plate 1, and a protective cover 7 is provided behind the window 6. The upper end of the protective cover 7 is rotatably hinged to the protective plate 1. An arc-shaped limiting strip 8 is installed on the top of the protective cover 7. The arc-shaped limiting strip 8 is slidably inserted into an arc-shaped through hole 12 on the protective plate 1. A slot 9 is provided on the arc-shaped limiting strip 8. A pressure plate 10 is provided on the lower side of the protective cover 7. A rubber strip 11 is installed at the end of the pressure plate 10.

[0026] When random inspection of materials inside the equipment is required, after stopping the equipment, push the protective cover 7 inward, causing it to flip upward. Then, limit sleeves 13 are installed on both sides of the front wall of the protective plate 1 near the window 6. Limit rods 14 are inserted into the limit sleeves 13, and a clamping plate 15 is installed at the upper end of the limit rods 14. A pressure plate 16 is installed at the bottom of the limit rods 14, with a limit through hole 161 on the pressure plate 16. A limit bolt 17 is installed on the lower side of the pressure plate 16, and the limit bolt 17 is fixedly installed to the protective plate 1. The limit bolt 17 passes through... The limiting through hole 161 is slidably sleeved with the pressure plate 16. The spring 18 sleeved on the limiting bolt 17 presses against the pressure plate 16 at one end and against the bottom side of the limiting bolt 17 at the other end. Thus, the limiting rod 14 lifts the clamping plate 15 so that it engages with the groove 9 in the arc-shaped limiting strip 8, thereby limiting the flipped protective cover 7. After the material to be inspected is taken out, the pressure plate 16 can be pressed to disengage the clamping plate 15 from the groove 9. At this time, the protective cover 7 flips down by its own weight and is then engaged and limited again by the clamping plate 15.

[0027] The material can be placed on the support plate 2 outside the protective cover 7 for testing. The support plate 2 is rotatably hinged to the protective plate 1. A support block 4 is installed on the bottom side of the support plate 2 near the protective plate 1 to press and limit the support plate 2. A second magnetic sheet 5 is installed on the protective plate 1, and a first magnetic sheet 3 is installed on the support plate 2. When the support plate 2 is not in use, it can be flipped and attached to the protective plate 1 to reduce the space occupied by the support plate 2 and prevent workers from bumping into it.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective frame for processing plastic packaging materials, comprising a protective plate (1), characterized in that: The protective plate (1) has a window (6) and a protective cover (7) is provided on the rear side of the window (6). The upper end of the protective cover (7) is rotatably hinged to the rear side wall of the protective plate (1). An arc-shaped limiting strip (8) is installed on the top of the protective cover (7). A slot (9) is provided on the inner side of the arc-shaped limiting strip (8). A pressure plate (10) is provided on the lower side of the protective cover (7). A limiting sleeve (13) is installed on the front side wall of the protective plate (1). A limiting rod (14) is slidably sleeved in the limiting sleeve (13). A clamping plate (15) is installed on the top of the limiting rod (14). A pressure plate (16) is installed at the bottom of the limiting rod (14). A limiting bolt (17) is provided below the pressure plate (16). A spring (18) is sleeved on the limiting bolt (17).

2. The protective frame for processing plastic packaging materials according to claim 1, characterized in that: The bottom end of the limiting bolt (17) is fixedly connected to the protective plate (1), and a limiting through hole (161) is provided on the pressure plate (16). The limiting bolt (17) is slidably sleeved with the pressure plate (16) through the limiting through hole (161).

3. The protective frame for processing plastic packaging materials according to claim 1, characterized in that: The upper end of the spring (18) is in contact with the bottom side of the pressure plate (16), and the lower end of the spring (18) is in contact with the lower end of the limiting bolt (17).

4. The protective frame for processing plastic packaging materials according to claim 1, characterized in that: The protective plate (1) has an arc-shaped through hole (12), the arc-shaped limiting strip (8) is rotatably inserted into the arc-shaped through hole (12), and the card plate (15) is inserted into the card slot (9) on the arc-shaped limiting strip (8).

5. A protective frame for processing plastic packaging materials according to claim 1, characterized in that: A rubber strip (11) is installed on one end of the pressure plate (10) facing the protective cover (7), and the protective cover (7) and the rubber strip (11) are pressed together.

6. The protective frame for processing plastic packaging materials according to claim 1, characterized in that: The front side of the protective plate (1) is rotatably hinged to a support plate (2). A support block (4) is installed on the bottom side of one end of the support plate (2) near the protective plate (1). One end of the support block (4) is in abutting contact with the protective plate (1).

7. A protective frame for processing plastic packaging materials according to claim 6, characterized in that: A first magnetic sheet (3) is installed on the support plate (2), and a second magnetic sheet (5) is installed on the protective plate (1). The first magnetic sheet (3) and the second magnetic sheet (5) are magnetically connected.

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