Manual cutting tool for EVA filler strip

Abstract

The utility model belongs to the field of photovoltaic module manufacturing, and discloses a manual EVA filler strip cutting tool. The manual EVA filler strip cutting tool comprises a bottom plate; a scale; a handle; the sliding assembly comprises a sliding rail and a sliding block; the tool apron is arranged on the sliding block; the knife pressing block is fixed at the top of the knife holder through an elastic reset structure and is configured to move towards the knife holder under the action of external force; the cutting knife is fixed on the knife pressing block, and the cutting knife and the handle are oppositely arranged on the two sides of the bottom plate in the width direction; the elastic reset structure has a compressed state and a reset state, and in the reset state, the bottom end of the cutting knife is higher than the bottom face of the bottom plate. And by arranging the graduated scale and the sliding assembly, the cutting accuracy and consistency are ensured, and personal errors are reduced. By arranging the elastic reset structure, an operator can press the cutter pressing block to drive the cutter to cut the target material, after external force is removed, the cutter pressing block is reset under the action of the elastic reset structure, in the reset state, the bottom end of the cutter is higher than the bottom face of the bottom plate, and unnecessary contact and damage to the target material can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic component manufacturing, in particular to a manual cutting tool for EVA pads. Background Art

[0002] EVA rubber is made of ethylene and acetic acid copolymer, and its scientific name is ethylene-vinyl acetate copolymer (ethylene-vinyl acetate copolymer). EVA rubber has a wide range of applications, especially in the photovoltaic industry. With the development of the photovoltaic industry, the demand for cost reduction and efficiency improvement is increasing. As a key material for the preparation of photovoltaic modules, especially in the production of TOPCON modules and HJT modules, the weight per square meter of EVA is gradually reduced.

[0003] In order to ensure that the quality of components can be guaranteed while reducing the use of EVA, especially to avoid problems such as component breakage at the customer end, EVA pads need to be added at the bus bar position, especially at the short side bus bar position during the production process.

[0004] In the prior art, the EVA pads are usually cut manually using a utility knife. However, this method has large operating errors, low cutting efficiency, and difficulty in ensuring the uniform size of the pads, thereby affecting the quality of the components. In addition, using a utility knife to cut the EVA pads is prone to injury to the operator and is also less safe. Utility Model Content

[0005] The utility model aims to provide a manual cutting tool for EVA pads, so as to solve the problems in the prior art of manually cutting EVA pads with a utility knife, which has large operation errors and is difficult to ensure the uniformity of the pad size, thus affecting the quality of the components and having low safety. It also realizes the standardization and unification of manual cutting of EVA pads, and improves cutting efficiency and safety.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A manual cutting tool for EVA pads, comprising:

[0008] Base plate;

[0009] A scale is arranged at both ends of the bottom plate in the length direction and extends along the width direction of the bottom plate;

[0010] A handle, disposed on the bottom plate;

[0011] A sliding assembly is arranged on the top of the bottom plate along the length direction, and the sliding assembly includes a sliding rail and a sliding block;

[0012] A knife seat, arranged on the slide block;

[0013] A knife pressing block, fixed to the top of the knife seat by an elastic reset structure and configured to move toward the knife seat under the action of an external force;

[0014] A cutting knife is fixed on the knife pressing block and arranged on both sides of the bottom plate in the width direction opposite to the handle;

[0015] The elastic reset structure has a compression state and a reset state. In the reset state, the bottom end of the cutting knife is higher than the bottom surface of the bottom plate.

[0016] In some embodiments, the cutting knife has a mounting end and a cutting end, and the mounting end is fixed on the cutting block;

[0017] The cutting end has two blades, which are symmetrically arranged on both sides of the central axis of the cutting knife in the height direction, and gradually tilt from the central axis of the cutting knife in the height direction to the two ends of the cutting knife in the width direction toward the mounting end.

[0018] In some embodiments, the mounting end is detachably mounted on the knife pressing block via a connecting piece.

[0019] In some embodiments, the connector is a threaded fastener.

[0020] In some embodiments, the handle is located in the middle of the bottom plate in the length direction.

[0021] In some embodiments, the elastic reset structure includes a telescopic column connected between the knife pressing block and the knife seat and a spring sleeved on the outside of the telescopic column, and two ends of the spring respectively abut against the knife pressing block and the knife seat.

[0022] In some embodiments, limit members are provided at both ends of the slide rail in the length direction, and the limit members are used to limit the sliding block from being separated from the slide rail in the length direction.

[0023] In some embodiments, the slide rail is fixed to the base plate by a first bolt.

[0024] In some embodiments, the tool holder is fixed to the slider by a second bolt.

[0025] Due to the application of the above technical solution, the beneficial effects of the present application compared with the prior art are:

[0026] The EVA pad manual cutting tool of the present application ensures the accuracy and consistency of the size of the EVA pad during the cutting process by setting a scale and a sliding component, reduces the impact of human errors on component quality, and makes the cutting of the EVA pad standardized and unified. It will not be affected by external factors and cause the cutting to deviate from the preset path. Both size and quality are guaranteed, thereby improving production efficiency and the controllability of product quality.

[0027] By setting an elastic reset structure to connect the knife holder and the knife pressing block, the operator only needs to press the knife pressing block to drive the cutting knife to cut the target material. After the external force is removed, the knife pressing block is reset under the action of the elastic reset structure, and in the reset state, the bottom end of the cutting knife is higher than the bottom surface of the base plate, which can prevent the blade from accidentally contacting the working surface and avoid unnecessary contact to damage the target material, thereby protecting the production items and reducing resource waste, and improving the user experience. The operator can focus more on the production task without having to worry about the position of the tool, thereby improving production efficiency and work fluency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the structure of a manual cutting tool for EVA pads in one embodiment of the utility model;

[0030] Figure 2 for Figure 1 An enlarged structural schematic diagram of point A is shown;

[0031] Figure 3 for Figure 1 The schematic diagram of the side structure of the manual cutting tool for EVA pads shown;

[0032] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at point B shown.

[0033] Description of reference numerals:

[0034] 1-base plate; 2-scale; 3-sliding assembly; 31-slide rail; 32-sliding block; 4-knife seat; 5-knife pressure block; 6-cutting knife; 61-blade; 7-handle; 8-elastic reset structure; 81-telescopic column; 82-spring; 9-connecting piece; 10-first bolt; 20-second bolt. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0038] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0039] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] See also Figures 1 to 4 The EVA pad strip manual cutting tool of one embodiment of the present application includes a base plate 1, a ruler 2, a sliding assembly 3 arranged on the top of the base plate 1 along the length direction, a knife seat 4, a knife pressing block 5, a cutting knife 6 fixed on the knife pressing block 5, and handles 7 arranged on both sides of the base plate 1 in the width direction opposite to the cutting knife 6.

[0042] Specifically, the scale 2 is arranged at both ends of the base plate 1 in the length direction and extends along the width direction of the base plate 1. The sliding assembly 3 includes a slide rail 31 and a slider 32. The knife seat 4 is arranged on the slider 32. The knife pressing block 5 is fixed to the top of the knife seat 4 through an elastic reset structure 8, and is configured to move toward the knife seat 4 under the action of an external force. The elastic reset structure 8 has a compressed state and a reset state. In the reset state, the bottom end of the cutting knife 6 is higher than the bottom surface of the base plate 1.

[0043] In some embodiments, the cutting blade 6 has a mounting end and a cutting end, and the mounting end is fixed on the cutting blade block 5. The cutting end has two blades 61, which are symmetrically arranged on both sides of the central axis of the cutting blade 6 in the height direction, and gradually tilt from the central axis of the cutting blade 6 in the height direction to the two ends of the cutting blade 6 in the width direction toward the mounting end, so that both ends of the cutting blade 6 can cut the target material.

[0044] It should be noted that the length direction of the bottom plate 1 is as follows Figure 1 As shown by the arrow a, the width direction of the bottom plate 1 is as follows Figure 1 As shown by arrow b in the figure. The height direction is Figure 2 As shown by the arrow c, the width direction of the cutting blade 6 is as follows: Figure 2 As shown by arrow d.

[0045] In some embodiments, the mounting end is detachably mounted on the knife pressing block 5 via a connecting piece 9 .

[0046] In detail, the connecting member 9 is a threaded fastener. It is a conventional structure and will not be described in detail here.

[0047] In some embodiments, the handle 7 is located in the middle of the length direction of the bottom plate 1. In order to ensure uniformity, the present application does not specifically limit the shape of the handle 7.

[0048] In some embodiments, the elastic reset structure 8 includes a telescopic column 81 connected between the knife pressing block 5 and the knife seat 4 and a spring 82 sleeved on the outside of the telescopic column 81, and two ends of the spring 82 respectively abut against the knife pressing block 5 and the knife seat 4.

[0049] In some embodiments, the slide rail 31 is provided with limit members at both ends in the length direction, and the limit members are used to limit the slider 32 from being separated from the slide rail 31 in the length direction. In detail, the limit members can be protrusions provided on the surface of the slide rail 31.

[0050] In some embodiments, the slide rail 31 is fixed to the bottom plate 1 by means of the first bolts 10. In this embodiment, the above-mentioned stoppers may be arranged on the head ends of the two bolts located at the outermost sides of the slide rail 31 in the length direction.

[0051] In some embodiments, the tool holder 4 is fixed to the slide block 32 by a second bolt 20 .

[0052] When in use, spread the target material flat on the workbench, press the EVA pad manual cutting tool on top of the target material, and make the bottom plate 1 parallel to the edge of the target material. After adjusting the cutting size according to the ruler 2, press the handle 7 with one hand and press the knife block 5 with the other hand to make the blade 61 contact with the target material, and drive the knife block 5 to move along the track of the slide rail 31 to complete the cutting.

[0053] Due to the application of the above technical solution, the beneficial effects of the present application compared with the prior art are:

[0054] The EVA pad manual cutting tool of the present application ensures the accuracy and consistency of the size of the EVA pad during the cutting process by setting a scale and a sliding component, reduces the impact of human errors on component quality, and makes the cutting of the EVA pad standardized and unified. It will not be affected by external factors and cause the cutting to deviate from the preset path. Both size and quality are guaranteed, thereby improving production efficiency and the controllability of product quality.

[0055] By setting an elastic reset structure to connect the knife holder and the knife pressing block, the operator only needs to press the knife pressing block to drive the cutting knife to cut the target material. After the external force is removed, the knife pressing block is reset under the action of the elastic reset structure, and in the reset state, the bottom end of the cutting knife is higher than the bottom surface of the base plate, which can prevent the blade from accidentally contacting the working surface and avoid unnecessary contact to damage the target material, thereby protecting the production items and reducing resource waste, and improving the user experience. The operator can focus more on the production task without having to worry about the position of the tool, thereby improving production efficiency and work fluency.

[0056] Finally, it should be noted that the above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A manual cutting tool for EVA pads, characterized in that: include: Base plate; A scale is arranged at both ends of the bottom plate in the length direction and extends along the width direction of the bottom plate; A handle, disposed on the bottom plate; A sliding assembly is arranged on the top of the bottom plate along the length direction, and the sliding assembly includes a sliding rail and a sliding block; A knife seat, arranged on the slide block; A knife pressing block, fixed to the top of the knife seat by an elastic reset structure and configured to move toward the knife seat under the action of an external force; A cutting knife is fixed on the knife pressing block and arranged on both sides of the bottom plate in the width direction opposite to the handle; The elastic reset structure has a compression state and a reset state. In the reset state, the bottom end of the cutting knife is higher than the bottom surface of the bottom plate.

2. The manual cutting tool for EVA pads as claimed in claim 1, characterized in that: The cutting knife has a mounting end and a cutting end, and the mounting end is fixed on the cutting block; The cutting end has two blades, which are symmetrically arranged on both sides of the central axis of the cutting knife in the height direction, and gradually tilt from the central axis of the cutting knife in the height direction to the two ends of the cutting knife in the width direction toward the mounting end.

3. The manual cutting tool for EVA pad strips as claimed in claim 2, characterized in that: The mounting end is detachably mounted on the knife pressing block via a connecting piece.

4. The manual cutting tool for EVA pad strips as claimed in claim 3, characterized in that: The connecting piece is a threaded fastener.

5. The manual cutting tool for EVA pad strips according to claim 1, characterized in that: The handle is located at the middle of the bottom plate in the length direction.

6. The manual cutting tool for EVA pad strips according to claim 1, characterized in that: The elastic reset structure comprises a telescopic column connected between the knife pressing block and the knife seat and a spring sleeved on the outside of the telescopic column, and two ends of the spring respectively abut against the knife pressing block and the knife seat.

7. The manual cutting tool for EVA pad strips according to claim 1, characterized in that: The slide rail is provided with limiting members at both ends in the length direction, and the limiting members are used to limit the sliding block from being separated from the slide rail in the length direction.

8. The manual cutting tool for EVA pad strips as claimed in claim 7, characterized in that: The slide rail is fixed to the base plate by a first bolt.

9. The manual cutting tool for EVA pad strips as claimed in claim 7, characterized in that: The knife seat is fixed on the slide block by a second bolt.

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