CN214523101U

CN214523101U - Tool bit structure of graver

Info

Publication number: CN214523101U
Application number: CN202022590641.0U
Authority: CN
Inventors: 高红涛
Original assignee: Zhejiang Xingda Stationery Co ltd
Current assignee: Zhejiang Xingda Stationery Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-10-29
Anticipated expiration: 2030-11-10

Abstract

The utility model provides a tool bit structure of carving tool, includes tool bit and blade, and wherein the tool bit adopts plastics integrated into one piece, and the blade groove that supplies the blade to plant is seted up at tool bit front end middle part, and the tool bit rear end passes through the tool bit connecting rod and can dismantle with the cutter arbor and be connected, and the tool bit connecting rod is the metal pole, and the grafting of tool bit connecting rod front end is fixed in the tool bit, and the tool bit connecting rod rear end is planted and is connected fixedly through the mode that the buckle is connected in the cutter arbor and cutter arbor. The tool bit has simple structure and lower manufacturing cost; the cutter head is spliced with the cutter bar through the metal cutter head connecting rod through the buckle, so that the assembly is convenient, the connection of the metal connecting rod is reliable, and the strength of the cutter body is improved; the inclined plane of the knife edge of the ceramic blade is parallel to the inclined plane of the knife head, and the inclined plane of the knife edge is parallel to the inclined plane of the knife head after the blade is inserted, so that the size of the knife tip exposed out of the knife head is accurate and stable; the whole graver is in a pen shape and is convenient to carry. Has the advantages of simple and reasonable structure, convenient assembly, low cost, stable tool tip size and safe and convenient use.

Description

Tool bit structure of graver

Technical Field

The utility model relates to a cutter, concretely relates to tool bit structure of carving tool.

Background

The carving tool is a steel carving (ENGRAVING) tool with various tips and is used for carving various wood, jade and other handicraft articles. The rear portion has a wood handle, which is generally round for palm comfort. The graver has an elliptic section and a rhombic section, and the top ends of the gravers are oblique points. The top end of the cutter with the rectangular cross section is an inclined surface and has a blunt shape, a round shape and a pointed shape. The tip and width of the edge are determined by the depth and width of the line to be engraved. Gravers come in various sizes and shapes, and there are many kinds, which are basically classified into two main categories. One is a blank cutter in the shape of a Chinese character 'Weng' tube, commonly called as a 'big block cutting' or a 'blank cutter', and the other is a polishing cutter in the shape of a 'drill bar', and is mainly used for digging fine blanks and polishing. In order to carve vivid images, the requirements on the cutter head are high. The existing tool bit comprises a circular knife, a flat knife, an inclined knife and the like. With more and more people liking engraving art, the design requirement of the graver is higher and higher.

Through the investigation, chinese patent "multi-functional carving tool" that current patent number is CN201920469364.2, including the body of rod and the carving tool bit, the carving tool bit sets up the one end at the body of rod, the surface of the body of rod is close to carving tool bit one end fixedly connected with sweat-absorbing skid resistant course, body of rod surface is kept away from carving tool bit one end and is provided with anti-skidding line, the inside of the body of rod is provided with the cavity, the inside regulation pole that is provided with of cavity, be provided with the internal thread on the inner wall of cavity, fixedly connected with external screw thread on the regulation pole outer wall, it passes through external screw thread and internal thread and body of rod screwed connection to adjust the pole, the body of rod is close to anti-skidding line one end and still is connected with locking mechanism, it is connected with coupling mechanism to adjust pole one end, the carving tool bit passes through coupling mechanism and connects on adjusting the pole, it still is connected with the tool bit storage mechanism to adjust pole one end of keeping away from coupling mechanism. The graver has the advantages that the graver is telescopic, but the structure is complex, an adjusting rod and a connecting mechanism are required to be arranged, the manufacturing cost is high, and the assembly is troublesome.

Disclosure of Invention

The utility model aims to solve the first technical problem that provide a simple structure, convenient assembling are firm carving tool's tool bit structure to foretell technical current situation.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: the utility model provides a tool bit structure of carving tool which characterized in that: the tool bit structure comprises a tool bit and a blade, wherein the tool bit is integrally formed by plastic, a blade groove for inserting the blade is formed in the middle of the front end of the tool bit, the rear end of the tool bit is detachably connected with the tool bar through a tool bit connecting rod, the tool bar connecting rod is a metal rod, the front end of the tool bar connecting rod is inserted and fixed in the tool bit, and the rear end of the tool bar connecting rod is inserted and fixed in the tool bar through a buckle connection mode and is connected with the tool bar fixedly.

As an improvement, the tool bit connecting rod is a cylindrical rod and is divided into three sections, wherein the front section is a first insertion section inserted with the tool bit, the rear section is a second insertion section inserted with the tool bar, and an annular clamping groove matched with the tool bar in a buckling mode is concavely arranged between the first insertion section and the second insertion section on the tool bit connecting rod.

The middle part of the rear end of the cutter head is provided with a positioning jack for inserting and fixing the first inserting section of the cutter head connecting rod, and the front end of the cutter head connecting rod is inserted and fixed in the cutter head through size matching; the middle part of the front end of the cutter bar is provided with a positioning hole for the insertion of the rear end of the cutter head connecting rod.

Furthermore, the positioning hole is a stepped hole with the front end expanded, the annular clamping groove in the middle part is just right positioned in the expanded hole after the tool bit connecting rod is inserted into the stepped hole, and a buckle matched and clamped with the annular clamping groove in the middle section of the tool bit connecting rod is convexly arranged on the inner wall of the expanded hole.

Still further, the buckle is the elasticity buckle that the hoop interval set up, and both ends are the inclined plane of inserting or extracting for being convenient for around the ring groove in tool bit connecting rod middle section.

And furthermore, a circle of annular convex rib which is abutted against the rear end surface of the cutter head is formed at the rear end of the first inserting section of the cutter head connecting rod.

Furthermore, the blade is a ceramic blade with an inclined front end edge, and the rear end of the blade is inserted into the blade groove in an inserting mode for positioning.

And finally, the front end of the cutter head is in a flat shape corresponding to the left side and the right side of the blade groove and is in a reducing structure, an inclined plane for trimming is formed on the lower side of the front end face of the cutter head, the inclination angle of the inclined plane is consistent with the inclination angle of the blade edge of the blade, the blade edge groove is formed in the middle of the front end face of the cutter head and the inclined plane, after the blade is inserted and positioned, the upper end of the blade edge of the blade extends out of the cutter head to form a cutter point, and the lower end of the blade edge of the blade is just positioned in the blade groove and is basically flush with the inclined plane.

Compared with the prior art, the utility model has the advantages of: the cutter head is integrally formed by plastic, so that the structure is simple, and the manufacturing cost is low; the cutter head is spliced with the cutter bar through the metal cutter head connecting rod through the buckle, so that the assembly is convenient, the connection of the metal connecting rod is reliable, and the strength of the cutter body is improved; the inclined plane of the knife edge of the ceramic blade is parallel to the inclined plane of the knife head, and the inclined plane of the knife edge is parallel to the inclined plane of the knife head after the blade is inserted, so that the size of the knife tip exposed out of the knife head is accurate and stable. The utility model has the advantages of simple and reasonable structure, convenient assembling is firm and knife tip stable in size, and the cost is also lower simultaneously.

Drawings

Fig. 1 is a schematic structural view of an engraving knife according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an embodiment of the present invention;

fig. 3 is an exploded view of an embodiment of the present invention;

fig. 4 is another exploded perspective view of an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1-4, a tool bit structure of carving tool, this tool bit structure includes tool bit 1 and blade 3, wherein tool bit 1 adopts plastics integrated into one piece, simple structure, it is convenient and with low costs to make, the rear end of tool bit 1 passes through tool bit connecting rod 5 and can dismantle with cutter arbor 2 and be connected, the blade groove 11 that supplies blade 3 to plant is seted up at the front end middle part of tool bit 1, blade 3 is the ceramic blade of front end edge of a knife slope, the rear end of blade 3 plants through the mode of pegging graft and locates in blade groove 11. The front end of tool bit 1 is flat while reducing the structure corresponding to the left and right sides in blade groove 11, and the preceding terminal surface downside shaping of tool bit 1 has the inclined plane 12 of cutting edge, and blade groove 11 sets up the intermediate position at the preceding terminal surface of tool bit 1 and inclined plane 12, and the inclination of inclined plane 12 is unanimous with the edge of a knife inclination of blade 3, and the back is fixed a position in the grafting of blade 3, and the edge of a knife upper end of blade 3 stretches out tool bit 1 appearance and becomes the knife tip, and the edge of a knife lower extreme of blade 3 just in time lies in blade groove 11, flushes with inclined plane 12 mutually basically.

The cutter bar connecting rod 5 is a cylindrical metal rod, the front end of the cutter bar connecting rod 5 is inserted and fixed in the cutter head 2, and the rear end of the cutter bar connecting rod 5 is inserted in the cutter bar 2 and is fixedly connected with the cutter bar 2 in a buckling connection mode; has the structure as follows: the tool bit connecting rod 5 is divided into three sections, wherein the front section is a first inserting section 51 inserted with the tool bit 1, the rear section is a second inserting section 52 inserted with the tool bar 2, and an annular clamping groove 53 in snap fit with the tool bar 1 is concavely arranged between the first inserting section 51 and the second inserting section 52 on the tool bit connecting rod 5. The middle part of the rear end of the cutter head 1 is provided with a positioning jack 13 for inserting and fixing a first inserting section 51 of the cutter head connecting rod 5, and the front end of the cutter head connecting rod 5 is inserted and fixed in the cutter head 1 through size matching. The middle part of the front end of the cutter bar 2 is provided with a positioning hole for inserting the rear end of the cutter head connecting rod 5, the positioning hole is a stepped hole with the front end expanded, the annular clamping groove 53 in the middle part of the cutter head connecting rod 5 after being inserted is just positioned in the expanded hole, and the inner wall of the expanded hole is convexly provided with a buckle 21 which is matched and clamped with the annular clamping groove 53 in the middle section of the cutter head connecting rod 5. The buckles 21 are three to four with certain elasticity and are arranged at intervals in the circumferential direction, and the front end and the rear end of the annular clamping groove 53 in the middle section of the cutter head connecting rod 5 are inclined planes which are convenient to insert or pull out. The rear end of the first insertion section 51 of the cutter head connecting rod 5 is formed with a ring-shaped convex rib 54 which is abutted against the rear end surface of the cutter head 1.

In addition, a knife sleeve 4 is further arranged outside the knife head 1, the knife sleeve 4 is sleeved outside the knife head 1 and plays a role in protecting the blade 3, and the knife sleeve 4 is connected with the knife bar 2 in a clamping mode.

When in use, the blade 3 is inserted into the blade groove 11, so that the lower end of the blade edge of the blade 3 is basically flush with the inclined plane 12 at the front end of the tool bit 1, thus the dimension of the tool bit exposed out of the tool bit 1 is accurate and stable, and the engraving is convenient; when the cutter is not used, the cutter sleeve 4 is sleeved on the cutter bar 2, so that the damage of the blade 3 or the potential safety hazard is avoided; the whole graver is in a pen shape and is convenient to carry.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a tool bit structure of carving tool which characterized in that: the tool bit structure comprises a tool bit and a blade, wherein the tool bit is integrally formed by plastic, a blade groove for inserting the blade is formed in the middle of the front end of the tool bit, the rear end of the tool bit is detachably connected with the tool bar through a tool bit connecting rod, the tool bar connecting rod is a metal rod, the front end of the tool bar connecting rod is inserted and fixed in the tool bit, and the rear end of the tool bar connecting rod is inserted and fixed in the tool bar through a buckle connection mode and is connected with the tool bar fixedly.

2. The cutter head structure of claim 1 wherein: the tool bit connecting rod is a cylindrical rod and is divided into three sections, wherein the front section is a first insertion section inserted with the tool bit, the rear section is a second insertion section inserted with the tool bar, and an annular clamping groove matched with the tool bar in a buckling mode is concavely arranged between the first insertion section and the second insertion section on the tool bit connecting rod.

3. The cutter head structure of claim 2 wherein: the middle part of the rear end of the cutter head is provided with a positioning jack for the first insertion section of the cutter head connecting rod to be inserted and fixed, and the front end of the cutter head connecting rod is inserted and fixed in the cutter head through size matching; the middle part of the front end of the cutter bar is provided with a positioning hole for the insertion of the rear end of the cutter head connecting rod.

4. The cutter head structure of claim 3 wherein: the positioning hole is a stepped hole with the front end expanded, the annular clamping grooves in the middle part are just positioned in the expanded hole after the tool bit connecting rod is inserted into the stepped hole, and a buckle matched and clamped with the annular clamping groove in the middle section of the tool bit connecting rod is convexly arranged on the inner wall of the expanded hole.

5. The cutter head structure of claim 4 wherein: the buckle is an elastic buckle arranged at intervals in the circumferential direction, and the front end and the rear end of the annular clamping groove in the middle section of the tool bit connecting rod are inclined planes which are convenient to insert or pull out.

6. The cutter head structure of claim 2 wherein: the rear end of the first inserting section of the cutter head connecting rod is provided with a circle of annular convex ribs which are abutted against the rear end face of the cutter head.

7. The cutter head structure of any one of claims 1 to 6 wherein: the blade is a ceramic blade with an inclined front-end edge, and the rear end of the blade is inserted in the blade groove in an inserting mode for positioning.

8. The cutter head structure of claim 7 wherein: the front end of tool bit is flat while undergauge structure corresponding to the left and right sides in blade groove, and the preceding terminal surface downside shaping of tool bit has the inclined plane of side cut, and the inclination of inclined plane is unanimous with the edge of a knife inclination of blade, and the edge of a knife groove is seted up in the preceding terminal surface of tool bit and the intermediate position on inclined plane, and after the blade grafting location, the edge of a knife upper end of blade stretches out the tool bit appearance and becomes the knife tip, and the edge of a knife lower extreme of blade just in time lies in the blade inslot, substantially flushes mutually with the inclined plane.