CN214446702U - Paper-plastic cutting tool - Google Patents
Paper-plastic cutting tool Download PDFInfo
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- CN214446702U CN214446702U CN202022588844.6U CN202022588844U CN214446702U CN 214446702 U CN214446702 U CN 214446702U CN 202022588844 U CN202022588844 U CN 202022588844U CN 214446702 U CN214446702 U CN 214446702U
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Abstract
The utility model discloses a paper-plastic cutting tool, which comprises a tool handle and a blade, wherein the tool handle is tightly connected with the blade through threads, an internal thread hole is arranged in the tool handle, a circular mounting hole is arranged in the middle of the blade, the blade is locked at the end part of the tool handle through a screw, a positioning groove is arranged in the tool handle at the advancing end of the internal thread hole, and the inner diameter of the positioning groove is coincided with the outer diameter of the internal thread hole; and a positioning lug matched with the positioning groove is arranged at the advancing tail end of the screw, and the outer end surface of the positioning lug is tightly attached to the inner end surface of the positioning groove. This patent is in order to improve the steadiness of blade and handle of a knife locking, so set up different connected mode, come blade and handle of a knife locking through hexagon socket countersunk screw or the flat button head screw of hexagon socket promptly. The positioning boss arranged on the screw rod is tightly matched with the positioning groove in the cutter handle so as to fully ensure the coaxiality of the blade and the cutter handle. The two modes are good, so that the vibration knife lines are solved, and the cutting quality is greatly improved.
Description
Technical Field
The utility model relates to a cutting tool, in particular to cutting tool is moulded to paper belongs to automation equipment technical field.
Background
In the production process of the paper-plastic product, in order to guarantee the strength of the product and the convenience of die drawing, the waste edge is provided in the production process, and the waste edge is cut off by an edge cutter for a finished product. And its cutter arbor of cutter structure of present bead cutter is the internal thread, fixes cutting blade in the cutter arbor below through the nut, takes place the unstable problem of tool bit easily like this when cutting the waste material limit, influences the cutting accuracy and the integrality on waste material limit. Therefore, a new connection method between the blade and the handle is needed to be provided to better solve the problem of stability of the blade during cutting.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a paper plastic cutting tool, this blade and handle of a knife have multiple connected mode, greatly increased the stability and the convenience of blade installation, strengthened the stability of cutting.
In order to achieve the purpose, the technical scheme adopted by the utility model is that the paper-plastic cutting tool comprises a tool handle and a blade, wherein the tool handle is in threaded fastening connection with the blade, an internal thread hole is formed in the tool handle, a mounting hole is formed in the middle of the blade, the blade is locked at the end part of the tool handle through a screw, a positioning groove is formed in the tool handle at the advancing end of the internal thread hole, and the inner diameter of the positioning groove is coincided with the outer diameter of the internal thread hole; and a positioning lug matched with the positioning groove is arranged at the advancing tail end of the screw, and the outer end surface of the positioning lug is tightly attached to the inner end surface of the positioning groove.
Preferably, when the screw is a countersunk head screw, the positioning lug is connected with a conical surface of the countersunk head screw, the diameter of the positioning lug is larger than that of a screw rod part of the countersunk head screw, and the conical surface, the positioning lug and the screw rod part are integrally formed; the blade is provided with a conical groove, and the conical surface is tightly attached to the conical groove.
Preferably, the bottom of the conical surface of the countersunk head screw is also provided with an inner hexagonal tightening groove, and the inner hexagonal tightening groove facilitates the locking of the countersunk head screw.
In this patent, be provided with the location lug on the countersunk screw, the location lug passes the blade and advances to the constant head tank of handle of a knife in, carries out accurate location, has fully guaranteed the axiality of blade and handle of a knife, can realize the accurate location of blade and handle of a knife through to the countersunk screw, need not to carry out the structure setting again to the blade, the cost that has significantly reduced, it is more convenient to fix a position moreover.
As another technical solution of the present invention, when the screw is a flat round head screw, the positioning bump is integrally formed with the screw portion of the flat round head screw, and the diameter of the positioning bump is larger than the diameter of the screw portion of the flat round head screw and smaller than the diameter of the base of the flat round head screw; the positioning lug penetrates through the mounting hole of the blade and moves into the positioning groove, and the outer end face of the positioning lug is tightly attached to the inner end face of the positioning groove.
Preferably, the base of the flat round head screw is provided with an inner hexagonal tightening groove; the mounting hole of the blade is a circular through hole.
In this patent second kind of technical scheme, flat button head screw can be changed into to the countersunk head screw, and flat button head screw is the same with the countersunk head screw, directly passes the blade through the location lug and advances to the constant head tank in the handle of a knife and reach accurate location.
Simultaneously, this patent has still given another kind of paper and has moulded cutting tool's technical scheme, promptly:
the utility model provides a paper plastic cutting tool, includes handle of a knife and blade, handle of a knife and blade screw thread fastening connection, be provided with the internal thread hole in the handle of a knife, the blade passes through countersunk screw or flat button head screw locking at the tip of handle of a knife, with be provided with the locating pin on the terminal surface of the handle of a knife of blade contact, the locating pin is located the both sides in internal thread hole, just be provided with on the blade with locating pin assorted locating hole.
Preferably, the positioning pins are cylindrical positioning pins or waist-shaped positioning pins, and the corresponding positioning holes are cylindrical through holes or waist-shaped key grooves respectively.
Preferably, when the positioning pin is a cylindrical positioning pin or a waist-shaped positioning pin, the blade is locked by a countersunk head screw or a flat round head screw, the blade is provided with a tapered groove attached to the tapered surface of the countersunk head screw, at the moment, the tapered groove passes through a cylindrical through hole or a waist-shaped key groove on the upper part of the blade to enable the tapered groove to be provided with an inclined part, and the lower part of the cylindrical through hole or the waist-shaped key groove is flat attached to the end surface of the handle.
Preferably, the countersunk head screw or the flat round head screw is further provided with a positioning lug, the positioning lug passes through the mounting hole of the blade and advances into a positioning groove of the knife handle, and the positioning groove is positioned at the front end of the internal thread hole.
Preferably, a positioning bump is arranged on the flat round head screw, and the waist-shaped positioning pin is arranged on the edge of the positioning groove and extends to the end face of the cutter handle.
Preferably, the opening edge of the waist-shaped positioning pin extends to the mounting hole of the blade and is communicated with the mounting hole.
The threads on the shank portion of the screw are contra-threaded in this patent, the overall structure of which is tighter the further the output shaft is rotated.
The utility model has the advantages that: this patent is in order to improve the steadiness of blade and handle of a knife locking, so set up different connected mode, come blade and handle of a knife locking through hexagon socket countersunk screw or the flat button head screw of hexagon socket promptly. The positioning boss arranged on the screw rod is tightly matched with the positioning groove in the cutter handle so as to fully ensure the coaxiality of the blade and the cutter handle. The screw rod part of the screw is matched with the internal thread hole by adopting reverse threads, and when the output shaft rotates, the integral structure of the screw is more and more compact. The two modes are good, so that the vibration knife lines are solved, and the cutting quality is greatly improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of the structure in the direction A-A in FIG. 2;
FIG. 4 is an exploded view of FIG. 1;
FIG. 5 is a partial cross-sectional view of FIG. 4;
fig. 6 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 7 is a cross-sectional view of FIG. 6;
FIG. 8 is an exploded view of FIG. 6;
FIG. 9 is a partial cross-sectional view of FIG. 6;
FIG. 10 is a schematic partial exploded view of the third embodiment;
FIG. 11 is a cross-sectional view of FIG. 10;
FIG. 12 is a schematic partial exploded view of the fourth embodiment;
FIG. 13 is a cross-sectional view of FIG. 12;
FIG. 14 is a schematic partial exploded view of the fifth embodiment;
FIG. 15 is a cross-sectional view of FIG. 14;
FIG. 16 is a schematic partial exploded view of the sixth embodiment;
FIG. 17 is a cross-sectional view of FIG. 16;
FIG. 18 is a schematic partially exploded view of the seventh embodiment;
FIG. 19 is a cross-sectional view of FIG. 18;
in the figure: 1. the tool comprises a tool handle, 1a end face, 2a blade, 2a conical groove, 3 an internal threaded hole, 4 a circular mounting hole, 5 positioning grooves, 5a inner end face, 6 positioning lugs, 6a outer end face, 7 countersunk head screws, 71 conical faces, 72 screw portions, 73 inner hexagonal tightening grooves, 8 flat round head screws, 81 bases, 9 positioning pins, 9a cylindrical positioning pins, 9b kidney-shaped positioning pins, 10 positioning holes, 10a cylindrical through holes, 10b kidney-shaped key grooves and 10b-1 inclined portions.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the present application will be clearly and completely described below with reference to the embodiments.
The utility model discloses a paper-plastic cutting tool, including handle of a knife 1 and blade 2, handle of a knife 1 and blade 2 screw fastening are connected, be provided with internal thread hole 3 in the handle of a knife 2, be provided with circular mounting hole 4 in the middle of the blade 2, blade 2 passes through the screw locking at the tip of handle of a knife 1, is located the handle of a knife 2 of internal thread hole 3 end of marcing and is provided with constant head tank 5, the internal diameter of constant head tank 5 and the external diameter coincidence of internal thread hole 3; the advancing tail end of the screw is provided with a positioning lug 6 matched with the positioning groove 5, and the outer end surface 6a of the positioning lug 6 is tightly attached to the inner end surface 5a of the positioning groove 5.
The first embodiment is as follows:
as shown in fig. 1-5, when the screw is a countersunk head screw 7, the positioning protrusion 6 is engaged with the tapered surface 71 of the countersunk head screw 7, the diameter of the positioning protrusion 6 is greater than the diameter of the screw portion 72 of the countersunk head screw 7, and the tapered surface 71, the positioning protrusion 6 and the screw portion 72 are integrally formed.
The blade 2 is provided with a conical groove 2a, and the conical surface 71 is tightly attached to the conical groove 2a, so that uniform stress of the countersunk head screw 7 in the screwing process is facilitated.
The bottom of the conical surface 71 of the countersunk head screw 7 is also provided with an inner hexagonal tightening groove 73, and the inner hexagonal tightening groove facilitates the locking of the countersunk head screw.
In this patent, be provided with the location lug on the countersunk screw, the location lug passes the blade and advances to the constant head tank of handle of a knife in, carries out accurate location, has fully guaranteed the axiality of blade and handle of a knife, can realize the accurate location of blade and handle of a knife through to the countersunk screw, need not to carry out the structure setting again to the blade, the cost that has significantly reduced, it is more convenient to fix a position moreover.
Example two:
as shown in fig. 6-9, another technical solution of the present invention is disclosed, when the screw is a flat round head screw 8, the positioning bump 6 is integrally formed with the screw shaft of the flat round head screw, and the diameter of the positioning bump 6 is larger than the diameter of the screw shaft of the flat round head screw and smaller than the diameter of the flat round head screw base 81; the positioning lug 6 passes through the circular mounting hole 4 of the blade 2 and advances into the positioning groove 5, and the outer end surface 6a of the positioning lug 6 is tightly attached to the inner end surface 5a of the positioning groove 5.
The base 81 of the flat round head screw 8 is provided with an inner hexagonal tightening groove.
The circular mounting hole of the blade is a circular through hole. When the screw is a flat round head screw, the positioning lug of the screw directly passes through the round through hole of the blade and advances to the positioning groove of the knife handle 1, the base 81 is provided with a plane which is tightly attached to the bottom surface of the blade 2, and the blade does not need to be provided with other structures, so that the screw is very convenient.
In this patent second kind of technical scheme, flat button head screw can be changed into to the countersunk head screw, and flat button head screw is the same with the countersunk head screw, directly passes the blade through the location lug and advances to the constant head tank in the handle of a knife and reach accurate location.
Example three:
as shown in fig. 10-11, a paper-plastic cutting tool is disclosed, including handle of a knife 1 and blade 2, handle of a knife 1 and blade 2 threaded fastening connection, be provided with internal thread hole 3 in the handle of a knife 1, blade 2 passes through the tip of button head screw 8 locking at handle of a knife 1, with be provided with locating pin 9 on the terminal surface 1a of handle of a knife 1 that blade 2 contacted, locating pin 9 is located the both sides of internal thread hole 3, just be provided with on the blade 2 with locating hole 10 with locating pin 9 assorted.
In the third embodiment, the positioning pins 9 are cylindrical positioning pins 9a, and the corresponding positioning holes 10 are cylindrical through holes 10a respectively, when the blade 2 is installed, the blade 2 is installed on the cylindrical positioning pins 9a of the tool holder 1, the blade is positioned and coaxially calibrated through the cylindrical positioning pins 9a, and then the blade is locked through the round head screws 8.
Example four:
as shown in fig. 12-13, this patent discloses another technical solution of a paper-plastic cutter, which is different from the third embodiment in that the positioning pin already provides another technical solution of the positioning pin, i.e. the positioning pin is different from the screw, and the specific solution is as follows:
the utility model provides a paper cutting tool, includes handle of a knife 1 and blade 2, 2 threaded fastening of handle of a knife 1 and blade are connected, be provided with internal thread hole 3 in the handle of a knife 1, blade 2 through countersunk screw 7 locking at the tip of handle of a knife 1, with be provided with locating pin 9 on the terminal surface 1a of the handle of a knife 1 of 2 contacts of blade, locating pin 9 is located the both sides in internal thread hole 3, just be provided with on the blade 2 with 9 assorted locating holes 10 of locating pin.
In the fourth embodiment, the positioning pin 9 is a waist-shaped positioning pin 9b, and the corresponding positioning hole 10 is a waist-shaped key slot 10b, when the blade 2 is mounted, the blade 2 is mounted on the waist-shaped positioning pin 9b of the tool holder 1, the blade is positioned and coaxially calibrated by the waist-shaped positioning pin 9b, and then the blade is locked by the countersunk head screw 7. In the scheme, the blade 2 is provided with a tapered groove 2a attached to the tapered surface 71 of the countersunk screw 7, at this time, the tapered groove 2a passes through a waist-shaped key groove 10b at the upper part of the blade 2 to form an inclined part 10b-1, and the lower part of the waist-shaped key groove 10b is attached to the end surface 1a of the tool holder 1. The opening edge of the waist-shaped positioning pin 9b extends to the mounting hole 4 of the blade 2 and is communicated with the mounting hole 4.
Example five:
as shown in fig. 14-15, in another embodiment of the present invention, the difference between the fifth embodiment and the fourth embodiment is that the blade 2 of the present embodiment is locked by the flat round head screw 8, the positioning pin 9 is a waist-shaped positioning pin 9b, and the corresponding positioning hole 10 is a waist-shaped key slot 10b, when the blade 2 is installed, the blade 2 is installed on the waist-shaped positioning pin 9b of the tool holder 1, at this time, the waist-shaped key slot 10b is clamped on the waist-shaped positioning pin 9b, the blade is positioned and coaxially aligned by the waist-shaped positioning pin 9b, and then locked by the flat round head screw 8. The opening edge of the waist-shaped positioning pin 9b extends to the mounting hole 4 of the blade 2 and is communicated with the mounting hole 4.
Example six:
as shown in fig. 16-17, for the sixth embodiment of the present invention, in the sixth embodiment, the main structure of the present invention is similar to that of the fifth embodiment, except that a positioning protrusion 6 is further disposed on the flat round-head screw 8, the positioning protrusion 6 passes through the mounting hole 4 of the blade and travels to the positioning groove 5 of the handle 1, the positioning groove 5 is located at the front end of the internal thread hole 3, and the waist-shaped positioning pin 9b is disposed on the edge of the positioning groove 5 and extends to the end surface 1a of the handle 1.
Example seven:
as shown in fig. 18 to 19, for the seventh implementation manner of the present invention, in the seventh implementation manner, the main body of the third implementation manner is the same as that of the third implementation manner, that is, the positioning pin 9 is a cylindrical positioning pin 9a, and the corresponding positioning holes 10 are cylindrical through holes 10a, respectively, when the blade 2 is mounted, the blade 2 is mounted on the cylindrical positioning pin 9a of the tool holder 1, the blade is positioned and coaxially calibrated by the cylindrical positioning pin 9a, and then locked by the round head screw 8.
The difference is that the screw is locked by a countersunk head screw 7, the upper part of the blade 2 is provided with a conical groove 2a which is tightly attached to the conical surface 71 of the countersunk head screw 7, at this time, the conical groove 2a passes through a cylindrical through hole 10a on the upper part of the blade 2 to enable the blade to be provided with an inclined part 10b-1, and the lower part of the cylindrical through hole 10a is attached to the end surface 1a of the tool holder 1.
In each of the above embodiments, the screw thread on the screw shaft portion of the screw is reversed, and the overall structure thereof is made tighter as the output shaft rotates.
This patent is in order to improve the steadiness of blade and handle of a knife locking, so set up different connected mode, come blade and handle of a knife locking through hexagon socket countersunk screw or the flat button head screw of hexagon socket promptly. The positioning boss arranged on the screw rod is tightly matched with the positioning groove in the cutter handle so as to fully ensure the coaxiality of the blade and the cutter handle. The screw rod part of the screw is matched with the internal thread hole by adopting reverse threads, and when the output shaft rotates, the integral structure of the screw is more and more compact. The two modes are good, so that the vibration knife lines are solved, and the cutting quality is greatly improved.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (10)
1. A paper-plastic cutting tool comprises a tool handle (1) and a blade (2), and is characterized in that the tool handle (1) and the blade (2) are in threaded fastening connection, an internal thread hole (3) is formed in the tool handle (1), a mounting hole (4) is formed in the middle of the blade (2), the blade (2) is locked at the end of the tool handle (1) through a screw, a positioning groove (5) is formed in the tool handle at the advancing tail end of the internal thread hole (3), and the inner diameter of the positioning groove (5) is overlapped with the outer diameter of the internal thread hole (3); the screw is characterized in that a positioning lug (6) matched with the positioning groove (5) is arranged at the advancing tail end of the screw, and the outer end face (6a) of the positioning lug (6) is tightly attached to the inner end face (5a) of the positioning groove (5).
2. The paper-plastic cutting tool according to claim 1, characterized in that when the screw is a countersunk head screw (7), the positioning lug (6) is engaged with a conical surface (71) of the countersunk head screw (7), the diameter of the positioning lug (6) is larger than that of a screw part (72) of the countersunk head screw (7), and the conical surface (71), the positioning lug (6) and the screw part (72) are integrally formed; the blade (2) is provided with a conical groove (2a), and the conical surface (71) is tightly attached to the conical groove (2 a); the bottom of the conical surface (71) of the countersunk head screw (7) is also provided with an inner hexagonal screwing groove (73).
3. The paper-plastic cutting tool according to claim 1, characterized in that when the screw is a flat round head screw (8), the positioning lug (6) is integrally formed with the screw shaft of the flat round head screw (8), and the diameter of the positioning lug (6) is larger than that of the screw shaft of the flat round head screw (8) and smaller than that of the base (81) of the flat round head screw (8); the positioning lug (6) penetrates through the mounting hole (4) of the blade (2) and moves into the positioning groove (5), and the outer end face (6a) of the positioning lug (6) is tightly attached to the inner end face (5a) of the positioning groove (5).
4. The paper-plastic cutting tool according to claim 3, characterized in that the base (81) of the flat round head screw (8) has a hexagonal socket (73), and the circular mounting hole (4) of the blade (2) is a circular through hole.
5. The utility model provides a paper cutting tool, includes handle of a knife (1) and blade (2), handle of a knife (1) and blade (2) screw thread fastening connection, be provided with internal thread hole (3) in handle of a knife (1), blade (2) are through countersunk screw (7) or flat button head screw (8) locking at the tip of handle of a knife (1), its characterized in that, with be provided with locating pin (9) on terminal surface (1a) of handle of a knife (1) of blade (2) contact, locating pin (9) are located the both sides in internal thread hole (3), just be provided with on blade (2) with locating pin (9) assorted locating hole (10).
6. The paper-plastic cutting tool according to claim 5, characterized in that the positioning pin (9) is a cylindrical positioning pin (9a) or a kidney-shaped positioning pin (9b), and the corresponding positioning hole (10) is a cylindrical through hole (10a) or a kidney-shaped key slot (10b), respectively.
7. The paper-plastic cutting tool according to claim 6, characterized in that when the positioning pin (9) is a cylindrical positioning pin (9a) or a kidney-shaped positioning pin (9b), and the blade (2) is locked by the countersunk head screw (7) or the flat round head screw (8), the blade (2) is provided with a tapered groove (2a) which is attached to the tapered surface (71) of the countersunk head screw (7), at this time, the tapered groove (2a) passes through the cylindrical through hole (10a) or the kidney-shaped key groove (10b) on the upper part of the blade (2) to form an inclined part (10b-1), and the lower part of the cylindrical through hole (10a) or the kidney-shaped key groove (10b) is attached to the end surface (1a) of the handle (1).
8. The paper-plastic cutting tool according to any one of claims 5-7, characterized in that a positioning bump (6) is further provided on the countersunk head screw (7) or the flat round head screw (8), the positioning bump (6) travels through the mounting hole (4) of the blade into a positioning groove (5) of the handle (1), and the positioning groove (5) is located at the front end of the internal threaded hole (3).
9. The paper-plastic cutting tool according to claim 6 or 7, characterized in that the flat round head screw (8) is provided with a positioning bump (6), and the kidney-shaped positioning pin (9b) is arranged on the edge of the positioning groove (5) and extends to the end surface (1a) of the tool holder (1).
10. The paper-plastic cutting tool according to claim 6, characterized in that the opening edge of the kidney-shaped positioning pin (9b) extends to the mounting hole (4) of the blade (2) and communicates with the mounting hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588844.6U CN214446702U (en) | 2020-11-10 | 2020-11-10 | Paper-plastic cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588844.6U CN214446702U (en) | 2020-11-10 | 2020-11-10 | Paper-plastic cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214446702U true CN214446702U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022588844.6U Active CN214446702U (en) | 2020-11-10 | 2020-11-10 | Paper-plastic cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214446702U (en) |
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2020
- 2020-11-10 CN CN202022588844.6U patent/CN214446702U/en active Active
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