Polyethylene foam gasket cutter

Abstract

The utility model relates to the technical field of tools and cutters, in particular to a polyethylene foam gasket cutter. The polyethylene foam gasket cutter comprises a cutter holder assembly, a cutting assembly and a pushing assembly, the cutter holder assembly comprises a holder body part and a fixing part, the fixing part is fixedly arranged at one end of the holder body part, and a mounting part is arranged at the end, away from the fixing part, of the holder body part; the cutting assembly at least comprises two blades which are coaxially arranged, and the blades are fixedly mounted on the mounting part; the pushing assembly at least comprises two springs, and the springs are fixedly mounted on the mounting part; and the spring is used for pushing out the gasket or the waste material cut by the blade. The gasket cutting device realizes efficient and accurate cutting of gaskets.

Description

Technical Field

[0001] The present application relates to the technical field of tools and cutters, in particular to a polyethylene foam gasket cutting knife. Background Art

[0002] Polyethylene foam is commonly known as pearl cotton, EPE, which is a closed-pore foam with strong anti-seismic performance and surface protection function. The placement of small precision stainless steel ring workpieces requires good anti-seismic and anti-surface scratch protection measures, and a large number of soft washers are needed to protect the workpieces. Traditional rubber washers, silicone washers, polyethylene washers, etc. have excellent surface protection and anti-seismic performance, but the packaging cost is high. Therefore, in order to reduce the packaging cost, washers made of polyethylene foam are used to package the workpieces.

[0003] Polyethylene foam has been widely used in packaging, protection and other fields due to its unique anti-seismic and surface protection properties. In the field of tool and cutter technology, cutting tools for polyethylene foam (EPE) are rare. At present, the market mainly uses manual scissors or general-purpose knives for cutting. Specifically, the main problems of the existing technology include: low cutting efficiency, manual scissor cutting requires a lot of manual operation, and can only cut one or a few layers of polyethylene foam at a time, which cannot meet the needs of large-scale production; poor cutting accuracy, manual operation is difficult to ensure the accuracy and consistency of each cut, resulting in unstable product quality. Due to its special material and performance, traditional knives are often difficult to cut effectively and efficiently, which limits the application scope and market competitiveness of polyethylene foam gaskets.

[0004] In order to quickly and efficiently produce polyethylene foam gaskets in batches, a tool is urgently needed to cut multiple layers of polyethylene foam, cut the gasket size in one step, and automatically push the gasket out of the cutter to achieve efficient production of polyethylene foam gaskets. Utility Model Content

[0005] In order to solve the problems of low production efficiency and poor cutting precision of polyethylene foam gaskets, a special cutting knife is designed to achieve efficient and accurate cutting of gaskets. The present application provides a polyethylene foam gasket cutting knife.

[0006] The polyethylene foam gasket cutter provided in this application adopts the following technical solution:

[0007] A polyethylene foam gasket cutting knife comprises a knife seat component, a cutting component and a pushing component.

[0008] The knife seat assembly comprises a seat body part and a fixing part, wherein the fixing part is fixedly arranged at one end of the seat body part, and a mounting part is arranged at one end of the seat body part away from the fixing part;

[0009] The cutting assembly comprises at least two coaxially arranged blades, and the blades are fixedly mounted on the mounting portion;

[0010] The pushing assembly comprises at least two springs, and the springs are fixedly mounted on the mounting portion; the springs are used to push out the gasket or waste material cut by the blade.

[0011] Further, the mounting portion includes at least two mounting cavities opened on the seat body portion;

[0012] The blade of the cutting assembly is fixedly installed in the installation cavity.

[0013] Furthermore, an annular support wall is constructed between adjacent installation cavities of the seat body, and the outer edge of the seat body forms an inner side wall concentric with the annular support wall;

[0014] The blade is fixedly bonded to the inner side wall of the outer edge of the seat body, and / or,

[0015] The inner side wall and / or outer side wall of the annular support wall.

[0016] Furthermore, a fixed spring cavity is provided inside the installation cavity;

[0017] One end of the spring of the pushing assembly can extend into the fixed spring cavity and be fixed in the fixed spring cavity.

[0018] Furthermore, an annular convex wall is constructed on the inner side wall of the outer edge of the seat body, and the annular convex wall is arranged between the fixed spring cavity and the installation cavity.

[0019] Furthermore, a T-shaped boss integrally formed with the seat body is formed in the innermost installation cavity, and a transverse wall of the T-shaped boss is away from the seat body.

[0020] Optionally, the installation cavity of the installation cavity includes a first installation cavity and a second installation cavity, the blade of the cutting assembly includes a first circular blade and a second circular blade; the spring of the pushing assembly includes a first compression spring and a second compression spring;

[0021] The first circular knife and the second circular knife are coaxially arranged, and the end surfaces of the first circular knife and the second circular knife are flush;

[0022] The first compression spring is fixedly installed in the first installation cavity; the second compression spring is fixedly installed in the second installation cavity.

[0023] Optionally, the first circular knife and the second circular knife are respectively installed on two sides of the first installation cavity.

[0024] Optionally, the first circular knife is installed in the first installation cavity;

[0025] The second circular knife is installed in the second installation cavity.

[0026] Optionally, the tool holder assembly is fixedly connected to the power device via the fixing portion.

[0027] The present application has at least one of the following beneficial effects.

[0028] The present application adopts at least two coaxially arranged blades (such as a first circular knife and a second circular knife) and combines them with a precisely positioned compression spring system (such as a first compression spring and a first compression spring). This design breaks through the limitations of traditional single-knife cutting and achieves simultaneous cutting of multiple layers of polyethylene foam materials, greatly improving operating efficiency and overcoming the inefficiency of manual scissors.

[0029] The present application uses a built-in pushing component (such as a first compression spring and a first compression spring) in the design to automatically push out the cut gasket using spring force, thereby reducing manual intervention, simplifying the process, reducing labor intensity, and making the production process more consistent and automated.

[0030] The present application ensures the stable positioning of the compression spring by designing the radial rectangular boss and the axial T-shaped boss in the tool holder assembly, thereby avoiding displacement and falling off during use. At the same time, the overall structural strength is enhanced by filling with solidified colloid, thereby significantly improving the durability and long-term stability of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the general assembly diagram of the polyethylene foam gasket cutter described in the utility model.

[0032] Figure 2 This is a cross-sectional view of the polyethylene foam gasket cutter described in the utility model.

[0033] Figure 3 It is a partial structural schematic diagram of the knife holder assembly of the utility model.

[0034] Figure 4 It is a partial cross-sectional structural schematic diagram of the knife holder assembly of the utility model.

[0035] Description of reference numerals:

[0036] 1. Knife seat assembly; 11. Seat body; 12. Fixing part; 13. Annular support wall; 14. Annular convex wall; 15. T-shaped boss; 16. Fixed spring cavity; 17. First installation cavity; 18. Second installation cavity; 19. Solidified colloid;

[0037] 2. Cutting assembly; 21. First circular knife; 22. Second circular knife;

[0038] 3. Pushing assembly; 31. First compression spring; 32. Second compression spring. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-4 This application is described in further detail.

[0040] The embodiments of the present application disclose a polyethylene foam gasket cutter.

[0041] The polyethylene foam gasket cutting knife includes a knife seat assembly 1, a cutting assembly 2, and a pushing assembly 3. The knife seat assembly 1 includes a seat body 11 and a fixing portion 12. The fixing portion 12 is fixedly arranged at one end of the seat body 11. A mounting portion is configured at one end of the seat body 11 away from the fixing portion 12. The cutting assembly 2 includes at least two coaxially arranged blades, which are fixedly mounted on the mounting portion. The pushing assembly 3 includes at least two springs, which are fixedly mounted on the mounting portion. The springs are used to push out the gasket or waste material cut by the blades. The mounting portion includes at least two mounting cavities opened on the seat body 11. The blades of the cutting assembly 2 are fixedly mounted in the mounting cavities. An annular support wall 13 is configured between adjacent mounting cavities of the seat body. The outer edge of the seat body forms an inner side wall concentric with the annular support wall 13. The blade is fixedly bonded to the inner side wall of the outer edge of the seat body, and / or the inner side wall and / or outer side wall of the annular support wall 13. A fixed spring cavity 16 is provided inside the installation cavity; one end of the spring of the pushing assembly 3 can extend into the fixed spring cavity 16 and be fixed in the fixed spring cavity 16 . Example

[0042] In this embodiment, the installation cavity includes a first installation cavity 17 and a second installation cavity 18, and the blade of the cutting assembly 2 includes a first circular knife 21 and a second circular knife 22; the spring of the pushing assembly 3 includes a first compression spring 31 and a second compression spring 32; the first circular knife 21 and the second circular knife 22 are coaxially arranged, and the end surfaces of the first circular knife 21 and the second circular knife 22 are flush; the first compression spring 31 is fixedly installed in the first installation cavity 17; the second compression spring 32 is fixedly installed in the second installation cavity 18. The first circular knife 21 and the second circular knife 22 are respectively installed on both sides of the first installation cavity 17. The first circular knife 21 and the second circular knife 22 are fixedly bonded by AB glue, and of course, they can also be connected by bolts, welding, etc. Example

[0043] The present embodiment is different from the first embodiment in that the first circular knife 21 is installed in the first installation cavity 17 ; the second circular knife 22 is installed in the second installation cavity 18 . Example

[0044] In this embodiment, the installation cavity of the installation cavity includes a first installation cavity 17, a second installation cavity 18, and a third installation cavity which are arranged concentrically, and the blade of the cutting assembly 2 includes a first circular knife 21, a second circular knife 22, a third circular knife, and a fourth circular knife; the spring of the pushing assembly 3 includes a first compression spring 31, a second compression spring 32, and a third compression spring; all circular knives and compression springs are arranged coaxially, and the end faces of all circular knives are flush. An annular support wall 13 is formed between the first installation cavity 17 and the second installation cavity 18, and between the second installation cavity 18 and the third installation cavity, and the thickness of the annular support wall 13 is different. The first compression spring 31 is fixedly installed in the first installation cavity 17, the second compression spring 32 is fixedly installed in the second installation cavity 18, and the third compression spring is fixedly installed in the third installation cavity. The first circular knife 21 and the second circular knife 22 are fixedly bonded to the inner side wall of the outer edge of the seat body and the inner side wall of the first installation cavity 17, respectively, and the third circular knife is installed on the outer side wall in the second installation cavity 18; the fourth circular knife is installed on the outer side wall in the third installation cavity. Example

[0045] As a further optimization, in the above embodiment, an annular convex wall 14 is constructed on the inner side wall of the outer edge of the seat body, and the annular convex wall 14 is arranged between the fixed spring cavity 16 and the installation cavity. A T-shaped boss 15 integrally formed with the seat body 11 is constructed in the innermost installation cavity, and the transverse wall of the T-shaped boss 15 is away from the seat body 11.

[0046] After the compression spring is fixedly installed in the fixed spring cavity 16 , curing glue is added to form a solidified glue 19 after a period of time. The solidified glue 19 is constrained by the annular convex wall 14 or the transverse wall of the T-shaped boss 15 .

[0047] The present application proposes a polyethylene foam gasket cutter, which integrates a knife seat assembly 1, a cutting assembly 2 and a pushing assembly 3, aiming to achieve efficient and accurate gasket cutting and automatic waste discharge functions, improve work efficiency and ensure the convenience of operation. Specifically, the knife seat assembly 1 builds a solid basic framework for the entire device through the stable combination of the fixing part 12 and the seat body part 11, and a mounting part is designed at one end thereof. This layout facilitates the integration and adjustment of the cutting assembly 2 and the pushing assembly 3, and enhances the overall stability and durability of the equipment.

[0048] The cutting assembly 2 uses at least two coaxially arranged blades, which are precisely installed in a special installation cavity of the seat body 11. This coaxial arrangement and end face flush design ensures high precision and consistency in the cutting process, and can achieve ideal processing effects whether it is the fine segmentation of foam gaskets or the rapid removal of waste.

[0049] The push assembly 3 is equipped with at least two springs, which are fixed in the fixed spring cavity 16 below the blade. Through elastic force, the cut gasket or waste is actively pushed away from the working area, reducing the need for manual cleaning and improving the continuity and efficiency of the operation. This dynamic response mechanism of the spring, combined with the design of the annular support wall 13 between different installation cavities, not only strengthens the stability of the overall structure, but also ensures the smooth progress of the cutting operation and reduces the risk of jamming or blocking.

[0050] In a further embodiment, as shown in Example 3, by increasing the number of mounting cavities and the corresponding blade and spring configuration, not only the cutting range is expanded, but also the adaptive cutting of different washers is achieved through the different thickness designs of the annular support wall 13, which reflects a high degree of flexibility and versatility. In addition, the annular convex wall 14 and T-shaped boss 15 structure introduced in Example 4 not only strengthen the fixation of key components, but also utilize the solidification effect of the curing glue to further consolidate the firmness of the connection between components, prevent displacement or loosening under long-term use, extend the service life of the equipment, and ensure the reliable performance of long-term operation.

[0051] The blades are made of high-performance materials such as high-carbon steel or carbide, combined with precision grinding and polishing processes to ensure sharp and long-lasting cutting, reducing the need for frequent tool replacement and further optimizing cost-effectiveness.

[0052] The design of the fixed part 12 of the knife holder assembly 1 allows integration with external power devices such as pneumatic or electric equipment to achieve automatic drive, which not only improves cutting efficiency, but also ensures cutting consistency and quality control. By adding sensors and control systems, key parameters in the cutting process, such as force, speed and tool wear, can be monitored in real time, and cutting parameters can be automatically adjusted according to feedback information, ensuring high stability and reliability of the cutting process, further improving production efficiency and product quality.

[0053] The solution of the present application effectively reduces the overall production cost by improving production efficiency and reducing manpower dependence, while reducing material waste and increasing production benefits.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A polyethylene foam gasket cutter, characterized in that: Including knife seat assembly, cutting assembly, pushing assembly, The knife seat assembly comprises a seat body part and a fixing part, wherein the fixing part is fixedly arranged at one end of the seat body part, and a mounting part is arranged at one end of the seat body part away from the fixing part; The cutting assembly comprises at least two coaxially arranged blades, and the blades are fixedly mounted on the mounting portion; The pushing assembly comprises at least two springs, and the springs are fixedly mounted on the mounting portion; the springs are used to push out the gasket or waste material cut by the blade.

2. A polyethylene foam gasket cutter according to claim 1, characterized in that: The mounting portion at least includes two mounting cavities opened on the seat body portion; The blade of the cutting assembly is fixedly installed in the installation cavity.

3. A polyethylene foam gasket cutter according to claim 2, characterized in that: An annular support wall is constructed between adjacent installation cavities of the seat body, and the outer edge of the seat body forms an inner side wall concentric with the annular support wall; The blade is fixedly bonded to the inner side wall of the outer edge of the seat body, and / or, The inner side wall and / or outer side wall of the annular support wall.

4. A polyethylene foam gasket cutter according to claim 3, characterized in that: A fixed spring cavity is provided inside the installation cavity; One end of the spring of the pushing assembly can extend into the fixed spring cavity and be fixed in the fixed spring cavity.

5. A polyethylene foam gasket cutter according to claim 4, characterized in that: An annular convex wall is constructed on the inner side wall of the outer edge of the seat body, and the annular convex wall is arranged between the fixed spring cavity and the installation cavity.

6. A polyethylene foam gasket cutter according to claim 5, characterized in that: A T-shaped boss integrally formed with the seat body is formed in the innermost installation cavity, and a transverse wall of the T-shaped boss is away from the seat body.

7. A polyethylene foam gasket cutter according to any one of claims 2 to 6, characterized in that: The installation cavity of the installation cavity includes a first installation cavity and a second installation cavity, the blade of the cutting assembly includes a first circular blade and a second circular blade; the spring of the pushing assembly includes a first compression spring and a second compression spring; The first circular knife and the second circular knife are coaxially arranged, and the end surfaces of the first circular knife and the second circular knife are flush; The first compression spring is fixedly installed in the first installation cavity; the second compression spring is fixedly installed in the second installation cavity.

8. A polyethylene foam gasket cutter according to claim 7, characterized in that: The first circular knife and the second circular knife are respectively installed at two sides of the first installation cavity.

9. A polyethylene foam gasket cutter according to claim 7, characterized in that: The first circular knife is installed in the first installation cavity; The second circular knife is installed in the second installation cavity.

10. A polyethylene foam gasket cutter according to claim 7, characterized in that: The tool holder assembly is fixedly connected to the power device via the fixing portion.

Images