Controllable self-adaptive punching tool for chippings of filter cloth of polydimethylsilane washing kettle

Abstract

The utility model discloses a controllable self-adaptive punching tool for filter cloth chippings of a polydimethylsilane washing kettle, which structurally comprises a conical cutter body and a positioning needle, the positioning needle is detachably connected to the bottom of the conical cutter body, a hollow air cavity is arranged inside the conical cutter body, and the hollow air cavity is communicated with the positioning needle. The two sides of the conical cutter body are provided with two sets of symmetrically-arranged double-blade blades, the two sets of double-blade blades are communicated with the hollow air cavity, and the conical cutter body is further provided with an air inlet hole communicated with the hollow air cavity. After the technical scheme is adopted, the controllable self-adaptive punching tool for the filter cloth chippings of the polydimethylsilane washing kettle has the characteristics of pneumatic chipping collection, self-adaptive aperture matching, convenience in operation and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chemical industry machinery technical field especially relates to a polydimethylsilane washing kettle filter cloth scrap controllable self -adaptation punching tool. BACKGROUND

[0002] In the washing kettle process of polydimethylsilane (PDMS) production device, filter cloth as the core filter medium needs to be frequently installed and replaced, and the installation mode of laying filter cloth on the metal base plate and then fixing by screw is generally adopted. Since the screw holes preset on the base plate are covered by the filter cloth, through holes need to be opened in the corresponding position of the filter cloth. The conventional operation in the industry at present is to use a awl to directly pierce the filter cloth, which has the following defects:

[0003] 1. Quality defect of opening hole: single-point impact type hole breaking causes tearing of cloth surface, forming irregular polygonal holes (actual measurement of ellipticity deviation reaches 15%-22%), which cannot meet the assembly requirement of hole diameter tolerance ±0.2mm;

[0004] 2. Uncontrolled contamination of debris: about 30% of broken fiber debris (size 0.5-3mm) will invade the base plate screw hole, causing screw assembly jamming (failure rate ≥17%) and abnormal wear of screw threads;

[0005] 3. Lack of hole diameter adaptability: the tool structure is fixed, and cannot adapt to hole diameters of different specifications such as M6-M10, and a single diameter tool causes material waste rate of 12%-15%;

[0006] 4. Defect of fiber treatment: the friction between the awl and the flexible material produces a winding effect (torque fluctuation ±18N·m), causing hole diameter shrinkage rate of 4%-7%;

[0007] 5. Obstacle of residual removal: the filter cloth fibers that are not completely cut off are pressed into the hole wall with the awl, forming an embedded burr (residual amount >0.5g / m 2 ), which needs to be cleaned twice and the cleaning efficiency is less than 60%.

[0008] In summary, the conventional operation of using an awl tool in the industry cannot meet the efficient, safe and convenient punching requirements of filter cloth, which causes the operators to face problems such as long operation time, high physical consumption and difficult installation. Therefore, there is an urgent need for a tool that can solve the above problems. UTILITY MODEL CONTENTS

[0009] The utility model aims to provide a polydimethylsilane washing kettle filter cloth scrap controllable self-adaptive punching tool to solve the problems raised in the background technology.

[0010] The utility model provides a polydimethylsilane washing cauldron filter cloth scrap controllable self -adaptation punching tool, its structure includes the conical tool body, the locating needle, the locating needle is detachably connected on the bottom of conical tool body, the inside of conical tool body has the hollow air chamber, two groups of symmetrical setting double -edged blade are seted up in the both sides of conical tool body, two groups double -edged blade are linked together with the hollow air chamber, still be provided with the air inlet hole that communicates with the hollow air chamber on conical tool body, to make the closed scrap temporary storage area between the hollow air chamber and air inlet hole.

[0011] Preferably, the top of the locating needle is provided with external threads, and the bottom of the conical tool body is provided with internal threads which form a threaded structure with the external threads of the locating needle.

[0012] Preferably, the conical tool body has a gradually increasing tapering conical surface from the root to the end, and the tapering angle is 5-15°, the outer diameter of the root of the conical tool body is 5.0 mm, the outer diameter of the middle part of the conical tool body is 8.5 mm, and the outer diameter of the end of the conical tool body is 10.2 mm.

[0013] Preferably, the blade angle of the double-edged blade is 25-35°, and the surface of the double-edged blade is coated with a TiAIN nano coating with a thickness of 3-5 um.

[0014] Preferably, the air inlet hole is arranged on the upper part of the conical tool body.

[0015] Preferably, the rotating handle is further arranged on the top of the conical tool body.

[0016] Preferably, the handle of the rotating handle is provided with an anti-skid sleeve.

[0017] Preferably, the anti-skid sleeve is a silicone anti-skid sleeve.

[0018] Preferably, the end of the handle of the rotating handle has a round head.

[0019] Preferably, the locating needle is provided with a clamping position on both sides for spanner dismounting.

[0020] From the above description of the structure of the utility model, compared with the prior art, the utility model has the following advantages:

[0021] 1. The utility model provides a kind of polydimethylsilane washing kettle filter cloth scrap controllable self-adapting punching tool, by the double-edged blade of the symmetry distribution of conical cutter body two sides and blade angle (25~35 °) design, make fiber receive bidirectional shearing force in cutting process, effectively offset unilateral stress concentration;Double-edged blade synchronous cutting can avoid the cloth surface tear caused by traditional single-point impact, combined with the tapered taper conical surface (root→end diameter: 5.0mm→10.2mm, taper angle 5~15 °), form uniform circumferential cutting track when progressive reaming, reduce ellipticity deviation from 15% to 22% to ±0.2mm within, meet high-precision assembly requirement.

[0022] 2, the utility model provides a kind of polydimethylsilane washing kettle filter cloth scrap controllable self-adapting punching tool, conical cutter body inside hollow air cavity (volume 5-8cm 3 ) and top air inlet hole constitute closed scrap temporary storage area, and cutting stage scrap enters hollow air cavity by double-edged blade gap;Chip removal stage is injected into high-pressure airflow (0.3-0.5MPa) to air inlet hole by external air pump, and scrap is forced to discharge from the channel of bottom positioning needle after disassembly using airflow impact, and scrap removal rate is greater than or equal to 98%, and traditional tool residual burr (>0.5g / m 2 ) and screw hole jamming problem is completely solved.

[0023] 3, the utility model provides a kind of polydimethylsilane washing kettle filter cloth scrap controllable self-adapting punching tool, and the taper design of conical cutter body allows operator to realize stepless adjustment (M6-M10) of hole diameter by controlling down pressure;For example, the 5.0mm outer diameter of conical cutter body root is adapted to M6 screw hole, and the 10.2mm outer diameter of conical cutter body end is adapted to M10 screw hole, and intermediate region is continuously transitioned, avoid material waste (material utilization rate is improved by 12%-15%) of traditional fixed diameter cutter;At the same time, reduce the torque fluctuation caused by flexible fiber winding, further ensure the consistency of hole diameter. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings constituting a part of this application are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation to the utility model.In the drawings:

[0025] Figure 1 It is the structure diagram of the utility model a kind of polydimethylsilane washing kettle filter cloth scrap controllable self-adapting punching tool Figure 1 ;

[0026] Figure 2 It is the structure diagram of the utility model a kind of polydimethylsilane washing kettle filter cloth scrap controllable self-adapting punching tool Figure 2 ;

[0027] Figure 3 Figure 1 is a front view of the self-adapting punching tool for filter cloth scraps of a polydimethylsilane washing kettle according to the present application;

[0028] Figure 4 Figure 2 is a sectional view of A-A in Figure 1; Figure 3

[0029] Figure 5 Figure 3 is a left view of the self-adapting punching tool for filter cloth scraps of a polydimethylsilane washing kettle according to the present application;

[0030] Figure 6 Figure 4 is a sectional view of B-B in Figure 3; Figure 5

[0031] Figure 7 Figure 5 is a right view of the self-adapting punching tool for filter cloth scraps of a polydimethylsilane washing kettle according to the present application. DETAILED DESCRIPTION

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0034] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0035] ​​The utility model discloses below will refer to the drawing and combine the embodiment to explain in detail.

[0036] Embodiment

[0037] Reference Figures 1 to 7 A polydimethylsilane washing kettle filter cloth scrap controllable self-adaptive punching tool, which comprises a conical cutter body 1 and a positioning needle 2, the positioning needle 2 is detachably connected to the bottom of the conical cutter body 1, the conical cutter body 1 has a hollow air cavity 3 in the inside, the volume of the hollow air cavity 3 is 5-8cm 3 For temporarily storing the cuttings generated by cutting; two groups of symmetrical double-edged blades 4 are arranged on the two sides of the conical cutter body 1, the two groups of double-edged blades 4 are communicated with the hollow air cavity 3, and an air inlet hole 5 communicated with the hollow air cavity 3 is further arranged on the conical cutter body 1, wherein the volume of the hollow air cylinder is 5-8cm3, so that a closed cutting temporary storage area is formed between the hollow air cavity and the air inlet hole. By adopting the structure, the double-edged blades symmetrically distributed on the two sides of the conical cutter body and the blade angle (25-35°) are designed, so that the fibers are subjected to bidirectional shearing force in the cutting process, and the unilateral stress concentration is effectively offset; the synchronous cutting of the double-edged blades can avoid the tearing of the cloth surface caused by the traditional single-point impact, and the gradually tapered conical surface (outer diameter from the root to the end: 5.0mm to 10.2mm, taper angle 5-15°) of the conical cutter body is combined, so that a uniform circumferential cutting track is formed when the hole is gradually expanded, the ovality deviation is reduced from 15%-22% to within ±0.2mm, and the high-precision assembly requirement is met; the hollow air cavity (volume 5-8cm 3 ) in the conical cutter body and the air inlet hole at the top form a closed cutting temporary storage area, the cuttings enter the hollow air cavity through the gap between the double-edged blades in the cutting stage; in the cutting removal stage, high-pressure airflow (0.3-0.5MPa) is injected into the air inlet hole through the external air pump, the cuttings are forced to be discharged from the channel after the positioning needle at the bottom is detached by using airflow impact, the cutting removal rate is greater than or equal to 98%, and the problems of residual burrs (>0.5g / m 2 ) and screw hole jamming in the traditional tool are solved; the gradually tapered design of the conical cutter body allows the operator to realize stepless adjustment of the hole diameter (M6-M10) by controlling the pressing force; for example, the conical cutter body with a root diameter of 5.0mm is matched with an M6 screw hole, the conical cutter body with an end diameter of 10.2mm is matched with an M10 screw hole, and the intermediate region is continuously transitioned, so that the material waste of the traditional fixed-diameter tool is avoided (material utilization rate is improved by 12%-15%); at the same time, the torque fluctuation caused by the winding of flexible fibers is reduced, and the hole diameter consistency is further ensured; so that the punching tool has the characteristics of pneumatic cutting collection, self-adaptive hole diameter matching and convenient operation.

[0038] The top of the positioning needle 2 is provided with external threads, and the bottom of the conical cutter body 1 is provided with internal threads which form a threaded structure with the external threads of the positioning needle 2. With this structure, the positioning needle 2 and the conical cutter body 1 form a detachable threaded structure with internal and external threads, which can be adapted to M6-M10 standard threaded holes, and after disassembly, the hollow air cavity 3 can be cleaned through the top air inlet hole 5.

[0039] The conical cutter body 1 has a gradually increasing tapering conical surface from the root to the end, with a taper angle of 5-15°, an outer diameter of 5.0 mm at the root of the conical cutter body 1, an outer diameter of 8.5 mm at the middle of the conical cutter body 1, and an outer diameter of 10.2 mm at the end of the conical cutter body 1. With this structure, the hole diameter roundness is improved, greatly improving the fitting accuracy.

[0040] The edge angle of the double-edged blade 4 is 25-35°, and the surface is coated with a TiAIN nano coating with a thickness of 3-5um. With this structure, the TiAIN nano coating can significantly improve the hardness of the double-edged blade 4.

[0041] The air inlet hole 5 is provided on the upper part of the conical cutter body 1. With this structure, the air inlet hole 5 is in communication with the hollow air cavity 3, and after connecting the air pump to the air inlet hole 5, the shredded cloth in the hollow air cavity 3 can be discharged by high-pressure airflow.

[0042] It also includes a rotating handle 6 provided on the top of the conical cutter body 1; a non-slip sleeve 62 is provided on the outer side of the handle of the rotating handle 6; the non-slip sleeve 62 is a silicone non-slip sleeve 62; the handle edge of the rotating handle 6 adopts a round head 61, which can prevent the operator from being injured. With this structure, the non-slip design of the rotating handle 6 reduces the fatigue of the operator and meets the requirements of ergonomics.

[0043] The positioning needle 2 is provided with a clamping position 21 on both sides for the wrench to disassemble. With this structure, the clamping position 21 is beneficial for the wrench to disassemble the positioning needle 2.

[0044] Work flow:

[0045] 1. Positioning stage: insert the positioning needle 2 into the filter cloth and align the metal substrate threaded hole;

[0046] 2. Cutting stage: rotate the rotating handle 6 to drive the rotation of the conical cutter body 1, so that the double-edged blades 4 on both sides of the conical cutter body 1 can synchronously shear the filter cloth fibers, and in the process of shearing, the shredded cloth will enter the hollow air cavity 3;

[0047] 3. Hole expansion stage: continuously press down, and the conical cutter body gradually expands the hole to the target diameter;

[0048] 4. The chip removal stage: rotating the positioning needle 2 to disassemble the positioning needle 2, and then injecting compressed air through the air inlet hole 5 at the top of the conical cutter body 1, and then the injected compressed air will discharge the broken cloth placed in the hollow air cavity 3 from the bottom, and the cleaning is completed.

[0049] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A polydimethylsilane wash kettle filter cloth chip controlled adaptive piercing tool, characterized by: The structure comprises a conical cutter body, a positioning needle, the positioning needle is detachably connected on the bottom of the conical cutter body, the inside of the conical cutter body has a hollow air cavity, two groups of symmetrical double-edged blades are arranged on the two sides of the conical cutter body, the two groups of double-edged blades are communicated with the hollow air cavity, and an air inlet hole communicated with the hollow air cavity is further arranged on the conical cutter body, so that a closed scrap temporary storage area is formed between the hollow air cavity and the air inlet hole.

2. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 1, characterized in that: The top of the positioning needle is provided with external threads, and the bottom of the conical cutter body is provided with internal threads which form a threaded structure with the external threads of the positioning needle.

3. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 1, characterized in that: The conical cutter body has a gradually increasing tapering conical surface from the root to the end, and the tapering angle is 5-15°, the outer diameter of the root of the conical cutter body is 5.0 mm, the outer diameter of the middle part of the conical cutter body is 8.5 mm, and the outer diameter of the end of the conical cutter body is 10.2 mm.

4. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 1, characterized in that: The blade angle of the double-edged blade is 25-35°, and the surface of the double-edged blade is coated with a TiAIN nano coating with a thickness of 3-5 um.

5. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 1, characterized in that: The air inlet hole is arranged on the upper part of the conical cutter body.

6. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 1, characterized in that: A rotating handle is further arranged on the top of the conical cutter body.

7. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 6, characterized in that: The outer side of the handle of the rotating handle is provided with an anti-skid sleeve.

8. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 7, characterized in that: The anti-skid sleeve is a silicon rubber anti-skid sleeve.

9. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 6, characterized in that: The end of the handle of the rotating handle has a round head.

10. A controllable self-adapting piercing tool for polydimethylsilane washing kettle filter cloth debris according to claim 1, characterized in that: The two sides of the positioning needle are provided with clamping positions for spanner disassembly.

Images