Tool accessory shell with elastic soft processing layer

Abstract

The utility model discloses a tool accessory shell with an elastic soft processing layer, and belongs to the technical field of tool accessories. The utility model comprises a shell, an elastic soft treatment layer is arranged on the shell, the elastic soft treatment layer is an elastic soft coating or an elastic soft rubber layer arranged on the shell, and the elastic soft treatment layer is at least provided with a surface treatment coating made of a resin material or at least provided with a surface treatment rubber layer made of an elastic material. And the shore hardness of the elastic soft treatment layer is 50-85 HA. The tool accessory shell is simple in structure, and the elastic soft processing layer is arranged on the surface of the shell, so that the friction coefficient and the anti-skid and anti-vibration performance of the tool accessory shell are improved, the holding comfort and touch feeling of the tool accessory are improved, and the anti-skid capacity is improved; and due to the proper shore hardness, the adaptive capacity of the tool accessory in complex environments such as humid environments, high-temperature environments and low-temperature environments is improved, so that enough holding force can be kept, and the operation precision of the tool accessory is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tool accessories, and more specifically relates to a tool accessory shell with an elastic soft processing layer. Background Art

[0002] Tool accessories are used to be detachably mounted on machining tool machines and have an accessory housing. Common tool accessories include drill chucks, sleeves, anglers, offset devices, etc. Take drill chucks as an example. Drill chucks are one of the main accessories in the power tool industry and machine tool industry and are widely used in hand drills and drilling machines.

[0003] In the prior art, due to the complex and changeable working environment of tool accessories such as drill chucks, when tool accessories are in a complex environment such as humidity, low temperature, high temperature, dryness, dust, chemicals (such as lubricating oil, grease, rust-proof oil, cutting fluid, etc.), water, etc., they are not only easily affected by heat, oxygen, ozone, variable valence metal ions, mechanical stress, light, high-energy rays, and erosion by other chemicals and molds during long-term storage and use, but their surfaces are also easily oxidized, rusted, and corroded, and their performance will gradually decrease, resulting in a complete loss of use value; moreover, the hand feel is uncomfortable, and the complex environment is not conducive to holding the smooth shell of the tool accessory by hand to rotate and operate the tool accessory, making it difficult to apply sufficient gripping force, resulting in inadequate operation, affecting the rotation of the tool accessory to clamp or release the tool. Utility Model Content

[0004] The utility model aims at solving the technical problems existing in the prior art and provides a tool accessory shell with an elastic soft processing layer.

[0005] In order to solve the above technical problems, the utility model includes a shell, on which an elastic soft treatment layer is arranged. The elastic soft treatment layer is an elastic soft coating or an elastic soft rubber layer arranged on the shell, and the elastic soft treatment layer is provided with at least one surface treatment coating composed of a resin material or at least one surface treatment rubber layer composed of an elastic material, and the Shore hardness of the elastic soft treatment layer is 50-85HA.

[0006] Preferably, the elastic soft treatment layer includes at least one post-treatment layer, and the components of the post-treatment layer include one or more of polyester resin, polyurethane resin, acrylic resin, thermoplastic elastomer, thermoplastic rubber, thermoplastic polyvinyl chloride, thermoplastic polyethylene, and silicone.

[0007] Preferably, the post-treatment layer of the elastic soft coating is a surface treatment layer whose ingredients include one or more of elastic powder, anti-aging agent and matting powder.

[0008] Preferably, the post-treatment layer of the elastic soft coating is a surface treatment layer whose components include an adhesion agent.

[0009] Preferably, the post-treatment layer of the elastic soft coating includes a post-treatment soft layer and a base paint layer, the post-treatment layer includes a post-treatment soft coating or a post-treatment soft glue layer, and the post-treatment layer of the elastic soft coating is arranged outside the base paint layer; the components of the post-treatment soft coating include one or more of polyester resin, polyurethane resin, and acrylic resin, the components of the post-treatment soft glue layer include one or more of thermoplastic elastomer, thermoplastic rubber, thermoplastic polyvinyl chloride, thermoplastic polyethylene, and silicone, and the components of the base paint layer include one or more of polyester resin and polyurethane resin.

[0010] Preferably, the components of the post-soft treatment layer of the elastic soft coating further include one or more of elastic powder, anti-aging agent, and matting powder, and the components of the base paint layer further include an adhesion agent.

[0011] Preferably, the film thickness of the post-soft treatment layer of the elastic soft coating is 10-50 microns, and / or the film thickness of the base paint layer is 10-35 microns.

[0012] Preferably, the elastic soft treatment layer further includes a pre-treatment layer, which is arranged on the inner side of the post-treatment layer. The pre-treatment layer of the elastic soft coating is a surface coating whose components include one or more of polyurethane resin and modified acrylic polymer.

[0013] Preferably, the shell is made of metal or structural plastic. When the shell is made of metal, the thickness of the pre-treatment layer of the elastic soft coating is 6-12 microns; when the shell is made of structural plastic, the thickness of the pre-treatment layer of the elastic soft coating is 3-5 microns.

[0014] Preferably, the elastic soft treatment layer is a surface coating or adhesive layer provided on a partial area or the entire area of ​​the surface of the shell body.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model has a simple structure. By setting an elastic soft treatment layer on the surface of the shell, the elastic soft treatment layer can be an elastic soft coating or an elastic soft rubber layer set on the shell, thereby improving the friction coefficient and anti-skid and anti-vibration performance of the tool accessory shell, making the tool accessory have a soft texture, and it slightly deforms in response to the pressure applied by the user's hand, thereby providing a softer grip and facilitating the user to grip the shell, increasing the comfort and touch of the tool accessory, and significantly increasing the anti-skid ability. In addition, the appropriate Shore hardness improves the adaptability of the tool accessory in complex environments such as humidity, high and low temperatures, so that sufficient grip can be maintained, making it easy to hold and reliably rotate the shell to rotate, clamp or release the tool, and improving the operating accuracy of the tool accessory. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] Explanation of symbols in the figure:

[0021] 1. Drill body; 2. Nut; 3. Clamping jaws; 4. Outer jacket; 5. Elastic soft treatment layer; 501. Elastic soft coating layer; 51. Pre-treatment layer; 52. Base paint layer; 53. Post-soft treatment layer. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] See also Figure 1 The utility model provides a tool accessory shell with an elastic soft treatment layer, including a shell, on which an elastic soft treatment layer 5 is arranged, the elastic soft treatment layer 5 is an elastic soft coating or an elastic soft rubber layer arranged on the shell, and the elastic soft treatment layer 5 is provided with at least one surface treatment coating composed of a resin material or at least one surface treatment rubber layer composed of an elastic material, and the Shore hardness of the elastic soft treatment layer 5 is 50-85HA.

[0024] The utility model has a simple structure. By setting an elastic soft processing layer 5 on the surface of the shell, the elastic soft processing layer 5 can be an elastic soft coating or an elastic soft rubber layer set on the shell, thereby improving the friction coefficient and anti-skid and anti-vibration performance of the tool accessory shell, making the tool accessory have a soft texture, and it slightly deforms in response to the pressure applied by the user's hand, thereby providing a softer grip and facilitating the user to grip the shell, increasing the comfort and touch of the tool accessory, and significantly increasing the anti-skid ability. In addition, the appropriate Shore hardness improves the adaptability of the tool accessory in complex environments such as humidity, high and low temperatures, so that sufficient grip can be maintained, making it easy to hold and reliably rotate the shell to rotate, clamp or release the tool, and improving the operating accuracy of the tool accessory.

[0025] The following takes a drill chuck as an embodiment of a tool accessory, and further describes a tool accessory housing with an elastic soft processing layer provided by the utility model by providing an elastic soft processing layer on the outer shell of the drill chuck.

[0026] Example

[0027] See also Figure 1 The present embodiment provides a drill chuck with an elastic soft treatment layer, including a drill body 1, a nut 2, a clamping jaw 3 and a sleeve 4, on which an elastic soft treatment layer 5 is arranged. The elastic soft treatment layer 5 is an elastic soft coating or an elastic soft rubber layer arranged on the sleeve 4, and the elastic soft treatment layer 5 is provided with at least one surface treatment coating composed of a resin material or at least one surface treatment rubber layer composed of a thermoplastic elastomer material, and the Shore hardness of the elastic soft treatment layer 5 is 50-85HA.

[0028] This embodiment has a simple structure. By arranging an elastic soft treatment layer 5 on the surface of the outer shell, the friction coefficient and the anti-skid and anti-shock performance of the drill chuck outer shell are improved, so that the drill chuck has a soft texture, the comfort and touch of the drill chuck are increased, and the anti-skid ability is significantly increased. In addition, the appropriate Shore hardness improves the adaptability of the drill chuck in complex environments such as humidity, high and low temperatures, so that sufficient holding force can be maintained, which is convenient for holding and reliably turning the outer shell to rotate and clamp or release the tool, thereby improving the operating accuracy of the drill chuck.

[0029] Specifically, Figure 1 , Figure 2 As shown, the elastic soft treatment layer 5 is coated on the outer surface of the outer jacket 4. The elastic soft treatment layer 5 is an elastic soft coating 501 arranged on the outer jacket 4. The elastic soft coating 501 includes a pre-treatment layer 51 and a post-treatment layer. The pre-treatment layer 51 is arranged on the inner side of the post-treatment layer. The pre-treatment layer 51 is a new generation of environmentally friendly thin film coating pre-treatment layer. Since the pre-treatment layer 51 has good wettability and high permeability to the substrate, it can greatly improve the bonding performance of the surface of organic and inorganic materials, and has excellent affinity with the surface of workpieces of different materials and the base paint layer, thereby providing excellent surface adhesion conditions for the coating of the post-treatment layer.

[0030] In this embodiment, the post-processing layer of the elastic soft coating 501 includes a base paint layer 52 and a post-soft processing layer 53, and the post-soft processing layer 53 includes a post-processing soft coating, and the post-soft processing layer 53 is arranged outside the base paint layer 52. The post-soft processing layer 53 has the characteristics of softness, comfort, elasticity, etc., and is comfortable to touch, which increases the comfort of holding the drill chuck; and the post-soft processing layer 53 has good density and impermeability, is durable, and has good weather resistance, oil resistance, water resistance, corrosion resistance and other properties. The paint film has no defects such as pinholes, wrinkles, cracks, etc., and primers of various colors can be prepared to form a variety of color appearances.

[0031] The base paint layer 52 plays the role of setting off the post-soft treatment layer 53, adding color, decoration and protection in the elastic soft treatment layer 5, and the base paint layer 52 creates a good base for the post-soft treatment layer 53, improves the softness and texture of the elastic soft treatment layer 5, and can improve the coating or adhesive layer properties of the post-soft treatment layer 53, such as scratch resistance, wear resistance, image vividness, fullness, corrosion resistance, weather resistance, bonding strength and adhesion.

[0032] Furthermore, in the present embodiment, the base paint layer 52 is arranged between the pre-treatment layer 51 and the post-soft treatment layer 53. The pre-treatment layer 51 is a microscopically rough and uneven porous structure, which can double the contact surface area between the base paint layer 52 and the substrate, and the mechanical bite force at the connection between the two is stronger, and the bonding can be firm; and the pre-treatment layer 51 can also play a connecting role, significantly enhancing the adhesion and bonding force between the substrate and the base paint layer 52, improving the scratch resistance, water resistance, gasoline resistance, wear resistance and heat resistance of the coating or adhesive layer, and at the same time can also improve the corrosion resistance of the metal jacket substrate.

[0033] As a preferred embodiment of the utility model, a sealant is provided in the base paint layer 52, which can greatly improve the bonding performance between the base paint layer 52 and the post-softening layer 53, and significantly improve the adhesion, moisture resistance, salt spray resistance and heat resistance.

[0034] In this embodiment, one or more of elastic powder, anti-aging agent, matting powder and the like are disposed in the post-softening treatment layer 53 .

[0035] By adding elastic powder to the post-softening layer 53, which is highly elastic, it can provide the surface of the jacket 4 with an extremely comfortable grip and touch. It deforms slightly in response to the pressure applied by the user's hand, thereby providing a softer grip and facilitating the user's grip on the shell, significantly enhancing the friction coefficient, weather resistance, anti-adhesion, scratch resistance, anti-slip and shock resistance of the post-softening layer 53; by adding an anti-aging agent to the post-softening layer 53, the aging process of the coating can be inhibited, solving the problems of easy stickiness and falling off, reduced elasticity, and cracking in traditional coatings, thereby extending the storage period and service life of the coating.

[0036] Furthermore, as a preferred embodiment of the utility model, the elastic soft processing layer 5 includes at least one post-processing layer, and the components of the post-processing layer include one or more of polyester resin, polyurethane resin, acrylic resin, thermoplastic elastomer (TPE), thermoplastic rubber (TPR), thermoplastic polyvinyl chloride (PVC), thermoplastic polyethylene (PE), silicone, etc.

[0037] Furthermore, preferably, the elastic soft treatment layer 5 is an elastic soft rubber layer provided on the outer cover 4, and the elastic soft rubber layer is a surface-treated single rubber layer structure composed of an elastic material.

[0038] When the elastic soft treatment layer 5 is an elastic soft coating, the elastic soft coating includes at least a post-treatment layer composed of one or more of polyester resin, polyurethane resin, acrylic resin, etc.; when the elastic soft treatment layer 5 is an elastic soft rubber layer, the elastic soft rubber layer includes at least a post-treatment layer composed of one or more of thermoplastic elastomer (TPE), thermoplastic rubber (TPR), thermoplastic polyvinyl chloride (PVC), thermoplastic polyethylene (PE), silicone, etc.

[0039] Furthermore, as a preferred embodiment of the utility model, the pre-treatment layer 51 of the elastic soft coating 501 is composed of a high molecular interfacial polymer, and its main components include but are not limited to modified acrylic polymers, polyurethane substances, additives, etc., and the film thickness of the pre-treatment layer 51 varies according to the material of the drill chuck jacket. The conventional lower jacket 4 is made of metal or structural plastic, and the structural plastic includes but is not limited to rigid polymers such as polycarbonate, filled polypropylene such as glass-filled polypropylene, nylon or polyaniline materials or other suitable materials. When the jacket 4 is made of structural plastic material, the film thickness of the pre-treatment layer 51 is 3-5 microns; when the jacket 4 is made of metal materials such as carbon steel, zinc alloy, magnesium alloy, stainless steel, etc., the film thickness of the pre-treatment layer 51 is 6-12 microns.

[0040] Furthermore, as a preferred embodiment of the utility model, the post-soft treatment layer 53 of the elastic soft coating 501 includes but is not limited to leather paint, velvet paint, elastic paint, hand-feel paint, rubber paint, fingerprint-resistant coating, etc., and raw materials with other sensory effects can also be selected to form the elastic soft treatment layer.

[0041] Moreover, the post-soft treatment layer 53 of the elastic soft coating 501 is mainly composed of one or more of polyester resin, polyurethane resin, acrylic resin, etc., and the film thickness of the post-soft treatment layer 53 is 10-50 microns. In the thick film state, it has a particularly soft texture, which improves the comfort and touch of the drill chuck jacket. In addition, since elastic powder, anti-aging agent, matting powder and other materials are added to the post-soft treatment layer 53, the post-soft treatment layer 53 has excellent wear resistance, scratch resistance, corrosion resistance, weather resistance, water resistance, alcohol resistance, anti-slip and shock resistance, and also has the characteristics of delicate touch, softness, elasticity, elegant and delicate appearance, flexibility, smoothness, etc.

[0042] In this embodiment, the base paint layer 52 of the elastic soft coating 501 includes one or more of polyester resin, polyurethane resin, etc., and the film thickness of the base paint layer is 10-35 microns.

[0043] Furthermore, in actual operation, the specific number of coatings or adhesive layers of the elastic soft treatment layer 5 can be set according to the use requirements of the drill chuck, the number of coatings or adhesive layers can be appropriately increased or decreased accordingly, and other surface treatment processes can also be selected.

[0044] Furthermore, as a preferred embodiment of the utility model, the elastic soft processing layer 5 can be set to be transparent or translucent, or matte or semi-matte. With the addition of matting powder, the appearance can be a completely matte state with an extremely soft matte sand surface luster and high-grade texture, which improves the grade and added value of the drill chuck product and enhances the international market competitiveness of the product.

[0045] Furthermore, as a preferred embodiment of the utility model, the base paint layer 52 in the elastic soft coating 501 can be set to a specific color according to different requirements such as the type, specification, and applicable occasions of the drill chuck, so as to facilitate distinction and selection in use or management. At the same time, different colors can also be configured according to the different base materials of the outer jacket to present different appearance effects.

[0046] Furthermore, as a preferred embodiment of the present invention, according to actual use requirements, the area where the elastic soft treatment layer is provided can be a partial area or the entire area of ​​the surface of the outer jacket body.

[0047] Furthermore, as a preferred embodiment of the present invention, the outside of the tool accessory shell can be covered with a soft rubber layer, and the soft rubber material used for the soft rubber layer can be TPE, TPR, PVC, PE, silicone or other soft rubber materials.

[0048] In this embodiment, the process of coating the elastic soft coating on the surface of the drill chuck shell is as follows:

[0049] First, the drill chuck jacket to be coated with an elastic soft coating is surface treated to thoroughly remove surface oil, release agent, dust, debris, etc.; then a matching pre-treatment layer is sprayed on the drill chuck jacket, and left to dry or baked for drying; then a matching base paint layer is sprayed on the drill chuck jacket, and left to dry or baked for drying; finally, a matching post-treatment soft coating is sprayed, and after being left to dry or baked for drying, a finished product can be obtained.

[0050] During the treatment process, baking, leveling and curing operations can be carried out at a certain temperature and time depending on the temperature conditions.

[0051] Furthermore, the elastic soft rubber layer can be obtained by a variety of process methods, such as double injection molding, liquid dipping molding, two-color liquid dipping molding, liquid dipping molding elastic soft rubber protective cap (sleeve), powder dipping molding or other process methods.

[0052] Furthermore, as a preferred embodiment of the utility model, the elastic soft rubber layer is molded from an elastic polymer around the outer circumferential surface of the tool accessory shell, and the elastic soft rubber layer is fully adhered to the shell by adopting a double injection molding process or other processing methods.

[0053] Furthermore, the elastic soft rubber layer can also be obtained through a liquid dipping process.

[0054] Specifically, in this embodiment, the process of obtaining the elastic soft rubber layer on the surface of the tool accessory shell by liquid dipping process is as follows:

[0055] Since plastics such as thermoplastic polyvinyl chloride (PVC) have the characteristics of softening when heated and solidifying into film after cooling, a physical melt plasticization film-forming process is formed. The workpiece is preheated to above the melting temperature of the plastisol (plastics sol), and then immersed in the plastisol at a certain speed and stays for a period of time. At this time, the coating is melted and evenly adhered to the surface of the workpiece, and then it leaves the plastisol at a certain speed. Finally, the coated object is placed in a baking oven for heating, melting, leveling or cross-linking to solidify into a film, and a uniform, insulating, colorful elastic soft rubber layer is obtained. In addition, before the workpiece is dipped in liquid plastic, it is first pre-treated, such as sandblasting, degreasing, rust removal, phosphating, bluing (black) or electroplating.

[0056] Furthermore, the elastic soft rubber layer can also be made by a two-color liquid dipping process. By controlling the height of the dipping liquid, two elastic soft rubber layers of different colors can be obtained on the surface of the same product, which set off each other, have good decorative properties, and are very beautiful in appearance. The appearance of the product is quite attractive to consumers, which increases its added value. Moreover, through two dippings, the thickness of the elastic soft rubber layer is increased. In the thick film state, it has high elasticity, a unique soft feel and a special soft plastic texture, which can increase the surface friction, thereby greatly improving the grip of the product surface. Compared with a single-color dipping layer, it has better physical and mechanical strength and good corrosion resistance.

[0057] Furthermore, the utility model can also adopt the method of liquid dipping molding to prepare the elastic soft rubber protective cap (sleeve) of the tool accessory shell, and its process flow is: mold preheating → dipping → plastic molding → cooling (air cooling or water cooling) → demoulding → post-processing.

[0058] Furthermore, as a preferred embodiment of the present invention, the elastic soft rubber layer can also be obtained by a powder dipping process, usually using a fluidized bed dipping method or an electrostatic fluidized bed dipping method.

[0059] In this embodiment, the processing technology of the elastic soft rubber layer includes but is not limited to the above process methods, and raw materials or other process methods with other sensory effects can also be selected to form the elastic soft rubber layer. In addition, the elastic soft rubber layer can be set to a specific color according to different needs such as the type, specification, and applicable occasion of the tool accessory, so as to facilitate differentiation and selection in use or management. At the same time, the tool accessory shell and the elastic soft rubber layer are configured with different colors (such as black and red, black and orange, or red and green, etc.), presenting different appearance effects.

[0060] Furthermore, the comparative examples and embodiments of the elastic soft coating are listed below to describe in detail the inventive points and beneficial effects of the utility model.

[0061] Specific test parameters of the elastic soft coating embodiment and comparative example

[0062]

[0063]

[0064] The above embodiments and comparative examples all use a steel drill chuck jacket, and the surface of the jacket is first treated with black electrophoretic coating, and then the corresponding matching coating is sprayed and the film thickness is set. The sprayed product is tested for Shore hardness, and the coating touch and wear resistance are tested with reference to relevant standards, methods, etc.; the drill chuck is then placed in a programmable constant temperature and humidity chamber, -20°C, 72h, and the outer shell of the drill chuck is held by hand to rotate the drill chuck to experience friction and holding force; the drill chuck is then placed in a programmable constant temperature and humidity chamber, 48.9±5°C, humidity 100%, 72h, and the outer shell of the drill chuck is held by hand to rotate the drill chuck to experience friction and holding force; then according to the standard GB / T 9286-2021 "Paint and Varnish Scratch Test", the adhesion of the elastic soft coating is tested; according to the standard GB / T10125-2021 "Artificial Atmosphere Corrosion Test Salt Spray Test", the corrosion resistance of the elastic soft coating is tested, and the rust time of the product is tested according to the neutral salt spray test.

[0065] Through the above analysis, it can be known that the drill chucks of Example 1, Example 2, and Example 3 are comfortable to hold and touch, have unique softness, elasticity, etc., and have good scratch resistance and wear resistance; the drill chuck is placed in a programmable constant temperature and humidity chamber, and the outer shell of the drill chuck is held by hand to rotate the drill chuck. The elastic soft coating is soft and comfortable, and has very good anti-slip properties, which is conducive to applying sufficient holding force. A large torque is input by a tool, and it is found that the coating is intact. The test results of Example 4 and Example 5 are different from the above. The drill chuck is placed in a programmable constant temperature and humidity chamber, and the outer shell of the drill chuck is held by hand to rotate the drill chuck. The elastic soft coating is soft and comfortable, and has good anti-slip properties, which is conducive to applying sufficient holding force. A large torque is input by a tool, and it is found that the coating is partially detached. The other test results are the same.

[0066] Moreover, the film thickness of the pre-treatment layer, the film thickness of the base paint layer, the film thickness of the post-treatment soft coating, and the number of coatings will also affect the rusting time of the drill chuck.

[0067] The drill chuck of comparative example 1 is uncomfortable to hold and touch, and has very poor scratch resistance and wear resistance. When the drill chuck is placed in a programmable constant temperature and humidity chamber, the drill chuck is rotated by holding the outer shell of the drill chuck by hand, and the elastic soft coating is very slippery, making it difficult to apply sufficient holding force. A large torque is input by a tool, and it is found that the coating is severely peeled off. However, in the drill chuck of comparative example 2, although the elastic soft coating is very slippery and it is difficult to apply sufficient holding force in a complex environment, a large torque is input by a tool, and it is found that the coating is basically intact.

[0068] Furthermore, the following examples of elastic soft rubber layers and comparative examples are listed to describe in detail the inventive features and beneficial effects of the present invention.

[0069] Specific test parameters of the elastic soft rubber layer embodiment and comparative example

[0070]

[0071]

[0072] Through the analysis of the above embodiments and comparative examples, it can be seen that the drill chucks of Embodiments 1 to 6 using different processes are comfortable to hold and touch, have unique softness and elasticity, and have good scratch resistance and wear resistance; the drill chuck is placed in a programmable constant temperature and humidity chamber, and the drill chuck is rotated by holding the outer shell of the drill chuck. The elastic soft rubber layer is soft and comfortable, and has very good anti-slip properties, which is conducive to applying sufficient holding force. When a large torque is input by using a tool, it is found that the rubber layer is intact.

[0073] However, the drill chucks of Comparative Examples 1 and 2 are uncomfortable to hold and touch, and have very poor scratch resistance and wear resistance. The drill chuck is placed in a programmable constant temperature and humidity chamber, and the drill chuck is rotated by holding the outer shell of the drill chuck. The elastic soft rubber layer is very slippery, and it is difficult to apply sufficient holding force. A large torque is input by using a tool, and it is found that the rubber layer is basically intact.

[0074] The utility model has a simple structure. By arranging an elastic soft processing layer 5 on the surface of the shell, the elastic soft processing layer 5 can be an elastic soft coating or an elastic soft rubber layer arranged on the shell, which provides a comfortable hand feel, a gripping feeling, a gripping force and an operating experience. It deforms slightly in response to the pressure applied by the user's hand, thereby providing a softer grip and facilitating the user to grip the shell, thereby enhancing the use experience, safety and reliability of the drill chuck, while also absorbing shock and vibration and providing additional shockproof protection; the elastic soft processing layer 5 can improve the friction coefficient and anti-slip and shockproof performance of the drill chuck jacket, and can provide Good gripping force makes the operation more comfortable and easy, and it is easy to hold and reliably turn the outer sleeve to rotate and clamp or loosen the tool, thereby increasing the input torque of the drill chuck, transmitting greater torque, and clamping or locking the drill bit more securely; while improving the comfort and touch of the drill chuck, the anti-slip ability of the drill chuck is significantly increased, and the appropriate Shore hardness improves the adaptability of the drill chuck in complex environments such as humidity, high and low temperatures, so that sufficient gripping force can be maintained, making it easy to hold and reliably turn the outer sleeve to rotate and clamp or loosen the tool, thereby improving the operating accuracy of the drill chuck.

[0075] The utility model can make up for the manufacturing defects of the tool accessory shell to a certain extent, improve the appearance of the tool accessory, and the elastic soft treatment layer has very good corrosion resistance, can resist the erosion of acids, alkalis, solvents and other chemicals, and effectively protect the substrate under the coating or adhesive layer. The elastic soft treatment layer has self-healing ability, which can effectively reduce the impact of surface bumps or scratches, play a role in protecting tool accessories, maintain the beauty and durability of the coating or adhesive layer, and thus extend the service life of tool accessories such as drill chucks.

[0076] In the description of the present invention, it should be understood that terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0077] In addition, in the description of the present application, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0078] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A tool accessory housing with an elastic soft processing layer, comprising a housing, wherein the housing is provided with an elastic soft processing layer, characterized in that: The elastic soft treatment layer is an elastic soft coating or an elastic soft rubber layer arranged on the shell, and the elastic soft treatment layer is provided with at least one surface treatment coating composed of a resin material or at least one surface treatment rubber layer composed of an elastic material, and the Shore hardness of the elastic soft treatment layer is 50-85HA.

2. A tool accessory housing with an elastic soft processing layer according to claim 1, characterized in that: The elastic soft treatment layer includes at least one post-treatment layer, and the components of the post-treatment layer include one or more of polyester resin, polyurethane resin, acrylic resin, thermoplastic elastomer, thermoplastic rubber, thermoplastic polyvinyl chloride, thermoplastic polyethylene, and silicone.

3. The tool accessory housing with an elastic soft processing layer according to claim 2, characterized in that: The post-treatment layer of the elastic soft coating is a surface treatment layer whose ingredients include one or more of elastic powder, anti-aging agent and matting powder.

4. The tool accessory housing with an elastic soft processing layer according to claim 2, characterized in that: The post-treatment layer of the elastic soft coating is a surface treatment layer whose components include an adhesion agent.

5. The tool accessory housing with an elastic soft processing layer according to claim 2, characterized in that: The post-processing layer of the elastic soft coating layer includes a post-processing soft layer and a base paint layer, the post-processing soft layer includes a post-processing soft coating layer or a post-processing soft rubber layer, and the post-processing soft layer of the elastic soft coating layer is arranged outside the base paint layer; The components of the post-processed soft coating layer include one or more of polyester resin, polyurethane resin, and acrylic resin; the components of the post-processed soft rubber layer include one or more of thermoplastic elastomer, thermoplastic rubber, thermoplastic polyvinyl chloride, thermoplastic polyethylene, and silicone; the components of the base paint layer include one or more of polyester resin and polyurethane resin.

6. The tool accessory housing with an elastic soft processing layer according to claim 5, characterized in that: The components of the post-soft treatment layer of the elastic soft coating further include one or more of elastic powder, anti-aging agent, and matting powder, and the components of the base paint layer further include an adhesion agent.

7. The tool accessory housing with an elastic soft processing layer according to claim 5, characterized in that: The film thickness of the post-soft treatment layer of the elastic soft coating is 10-50 microns, and / or the film thickness of the base paint layer is 10-35 microns.

8. A tool accessory housing with an elastic soft processing layer according to any one of claims 2 to 7, characterized in that: The elastic soft treatment layer also includes a pre-treatment layer, which is arranged on the inner side of the post-treatment layer. The pre-treatment layer of the elastic soft coating is a surface coating whose components include one or more of polyurethane resin and modified acrylic polymer.

9. The tool accessory housing with an elastic soft processing layer according to claim 8, characterized in that: The shell is made of metal or structural plastic. When the shell is made of metal, the thickness of the pre-treatment layer of the elastic soft coating is 6-12 microns; when the shell is made of structural plastic, the thickness of the pre-treatment layer of the elastic soft coating is 3-5 microns.

10. The tool accessory housing with an elastic soft processing layer according to claim 1, characterized in that: The elastic soft treatment layer is a surface coating or adhesive layer arranged on a partial area or the entire area of ​​the surface of the shell body.

Images