CN112096089A - Reinforcing steel bar binding machine and machine head body and machine head of reinforcing steel bar binding machine - Google Patents
Reinforcing steel bar binding machine and machine head body and machine head of reinforcing steel bar binding machine Download PDFInfo
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- CN112096089A CN112096089A CN202010955951.XA CN202010955951A CN112096089A CN 112096089 A CN112096089 A CN 112096089A CN 202010955951 A CN202010955951 A CN 202010955951A CN 112096089 A CN112096089 A CN 112096089A
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- end part
- rear end
- steel bar
- wire
- bar binding
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/122—Machines for joining reinforcing bars
- E04G21/123—Wire twisting tools
Abstract
The invention relates to a tool adopted in building construction, in particular to a reinforcing steel bar binding machine, and provides a reinforcing steel bar binding machine, a machine head body and a machine head of the reinforcing steel bar binding machine. The machine head body is provided with a shell connecting structure, and the shell connecting structure is used for fixedly assembling the machine head body on a shell of the steel bar binding machine; the aircraft nose body includes: the front end part is used for fixedly assembling a wire guide block of the steel bar binding machine and is used for forming a wire guide channel together with a wire guide groove on the wire guide block so as to bend the binding wire sent by a wire feeding mechanism into a circular shape; a rear portion, the rear portion having the housing connection structure; the front end part and the rear end part are detachably connected through a detachable structure and used for replacing the front end part of the guide wire block with the required specification when in use. Above-mentioned scheme has solved current steel bar binding machine's removable aircraft nose problem with high costs, bulky.
Description
Technical Field
The invention relates to a tool used in building construction, in particular to a reinforcing steel bar binding machine.
Background
The reinforcing bar binding machine is an important tool in building construction, and is used for replacing manual work to bind the intersection points of reinforcing bars so as to form a firm reinforcing bar frame by the reinforcing bars. In use, as shown in fig. 1, the reinforcing bar binding machine can make the binding wire 101 circularly (the binding wire 101 is twisted and deformed in the figure) surround several circles at the intersection of the reinforcing bars 102, and then twist the binding wire 101 wound in a circular shape to tighten the reinforcing bars, thereby completing the binding of the steel wires.
As shown in fig. 2, the electric reinforcing bar binding machine disclosed in chinese patent with an authorization publication No. CN103982043B in the prior art includes a housing (not shown in the figure), a head 200, a switch 207, and a battery 208, wherein the head 200 is disposed at a front end of the housing and includes a head body 201, and a wire guide block 206 and a wire feeding plate 209 are disposed on the head body 201. The shell is provided with a wire feeding mechanism and a wire twisting mechanism, the wire feeding mechanism comprises a wire disc 202, a wire guiding taper pipe 203, a wire feeding wheel set 204 and a wire feeding plate 209, a wire feeding channel is arranged in the wire feeding plate 209, and the wire feeding mechanism is used for conveying a bundled wire to a machine head; the wire twisting mechanism includes a wire twisting head 205 for twisting the round-bent binding wire to tighten the reinforcing bar. The inner side surface of the wire guide block 206 is provided with a curved wire guide groove, and the wire guide groove is buckled to the handpiece body 201 during assembly to form a wire guide channel for rounding, namely bending the binding wire sent by the wire feeding mechanism into a circle. The machine head body 201 is provided with a cutter, and the cutter is used for cutting off the strapping wire after the strapping wire is conveyed out by a set length. During the use, aircraft nose body 201 is fixed the assembly to steel bar binding machine's shell through the shell connection structure on it to with wire feeding mechanism and hank silk mechanism isotructure adaptation in the shell. Overall, the structure of steel bar binding machine is complicated, and the precision to each spare part size and the cooperation precision requirement between the part are very high, especially aircraft nose position, and its spare part is more, accumulates precision error and assembly error easily and causes the strapping silk can't become the circle or can't go out the silk smoothly, therefore whole cost is also higher.
However, in actual construction work, the diameter specifications of the steel bars to be bound are many, the binding wires also need to be correspondingly bent to different diameters and turns, and the tightening force required for the steel bars of different specifications during tightening also differs. However, the steel bar binding machine of one type in the market at present can only be suitable for steel bars of one specification, or can also be used for steel bars of which the specification is close and binding requirements are close, so that a plurality of steel bar binding machines of different specifications need to be prepared when constructors operate, and the steel bar binding machine is high in cost, inconvenient to manage and maintain and inconvenient to carry. These factors also affect the spread of the reinforcing bar binding machine.
Application publication No. is CN110469127A discloses a steel bar binding machine rifle head in the Chinese patent application, steel bar binding machine's aircraft nose promptly, will be fixed to steel bar binding machine's shell through erection column and mounting hole complex mode installation by the rifle head that body, cutter and seal wire body constitute, made things convenient for the dismantlement of rifle head to make the rifle head change according to actual need. Chinese patent No. CN108343250B discloses a reinforcing bar binding machine, a replaceable tip thereof, and a working method thereof, which can satisfy the application of reinforcing bar combination modes of various sizes on construction sites through the replaceable tip.
However, the gun head has many integrated parts and high requirements for manufacturing precision, so that the overall cost of the gun head is high, the overall cost of the steel bar binding machine is still high due to the current scheme for replacing the gun head, the gun head has a large volume, and a plurality of storage spaces are needed when constructors carry a plurality of gun heads, so that the gun head is inconvenient to carry and easily influences the operation.
Disclosure of Invention
The invention aims to provide a reinforcing steel bar binding machine, which solves the problems of high cost and large volume of a replaceable machine head of the conventional reinforcing steel bar binding machine; another object of the present invention is to provide a head body of a reinforcing bar binding machine, which creates conditions for the reinforcing bar binding machine to meet the binding requirements of various reinforcing bar specifications at a low cost; another object of the present invention is to provide a head of a reinforcing bar binding machine, which can meet the binding requirements of various reinforcing bars at a low cost.
The machine head body of the steel bar binding machine adopts the following technical scheme:
the machine head body of the steel bar binding machine is provided with a shell connecting structure, and the shell connecting structure is used for fixedly assembling the machine head body on a shell of the steel bar binding machine;
the aircraft nose body includes:
the front end part is used for fixedly assembling a wire guide block of the steel bar binding machine and is used for forming a wire guide channel together with a wire guide groove on the wire guide block so as to bend the binding wire sent by a wire feeding mechanism into a circular shape;
a rear portion, the rear portion having the housing connection structure;
the front end part and the rear end part are detachably connected through a detachable structure and used for replacing the front end part of the guide wire block with the required specification when in use.
Has the advantages that: according to the technical scheme, the machine head body is divided into the front end part and the rear end part, the rear end part is fixedly assembled on a shell of the steel bar binding machine, the front end part is used as an installation base of the wire guide block to form a wire guide channel together with the wire guide groove on the wire guide block, and the front end part and the rear end part are detachably connected through a detachable structure, so that when steel bars with corresponding specifications need to be bound, the front end part provided with the wire guide block with the corresponding specification can be directly replaced, compared with the prior art, the whole machine head does not need to be replaced, and the steel bar binding machine can meet the binding requirements of multiple steel bar specifications at lower cost; and the volume and the weight of the front end part of the guide wire block with the corresponding specification are greatly smaller than those of the whole machine head, so that the guide wire block is more convenient for constructors to carry and store, and the influence on the steel bar bundling operation is not easy to cause.
As a preferred technical scheme:
one of the front end part and the rear end part is provided with a clamping groove; when the connecting part of the front end part and the rear end part is used, one side close to the steel bar intersection is the inner side, one side back to the steel bar intersection is the outer side, and the notch of the clamping groove faces inwards;
the other one of the front end part and the rear end part is provided with a clamping bulge on the inner side, and the clamping bulge is clamped in the clamping groove;
the front part of the rear end part is provided with a supporting structure, and the supporting structure is at least used for supporting one end of the front end part close to the outside;
the outer side of the connecting part of the front end part and the rear end part is also provided with a locking structure, and the locking structure is at least used for locking the front end part to the rear end part along the front-back direction;
an inner and outer limiting structure is arranged between the front end part and the rear end part and is used for limiting the front end part to move outwards relative to the rear end part.
Has the advantages that: by adopting the technical scheme, the inner end and the outer end of the connecting part of the front end part and the rear end part are respectively fixed through the matching of the clamping protrusion and the clamping groove and the locking structure, the structure is simple, and the replacement is convenient; in addition, because the outward component force is applied to the guide wire block when the binding wire is in a round shape, the arrangement of the inner and outer limiting structures can limit the outward movement of the front end part relative to the rear end part, and the working reliability is ensured.
As a preferred technical scheme: the clamping groove is a long groove and extends along the inner and outer directions;
the clamping bulge is in a strip shape and extends along the inner and outer directions.
Has the advantages that: by adopting the technical scheme, the clamping groove and the clamping protrusion can form rotation stopping fit, so that the connection between the front end part and the rear end part is firmer, and the reliable work of the steel wire bundling machine is ensured.
As a preferred technical scheme: one end of the clamping groove, which faces away from the opening, is a blind end, and the blind end is used for being in stop fit with the clamping protrusion along the inner and outer directions to form the inner and outer limiting structures.
Has the advantages that: by adopting the technical scheme, the structure can be simplified by forming the inner and outer limiting structures by the blind end, and the inner and outer limiting structures do not need to be independently arranged.
As a preferred technical scheme:
the locking structure comprises a locking nose, the locking nose is arranged outside the front end part and protrudes outwards from the front end part;
the lock nose is hooked by the lock catch on the rear end part and is tensioned backwards when the lock catch is locked;
the lock catch comprises:
a lock housing for securing to the rear end portion;
the front end of the lock ring is used for being hooked on the front side of the lock nose, and the rear end of the lock ring is hinged to an operating handle of the lock catch;
and an operating handle hinged on the lock seat and used for tensioning the lock ring towards the back after swinging backwards and exceeding the dead point.
Has the advantages that: adopt above-mentioned technical scheme, the hasp can lock fast and release lock nose, is favorable to the quick replacement of front end portion.
As a preferred technical scheme: the front side of the lock nose is provided with a clamping groove, and the front end part of a locking ring on the lock catch is embedded into the clamping groove;
and the rear end part is provided with a lock ring stopping surface which is used for stopping the lock ring and stopping the lock ring from moving inwards.
Has the advantages that: by adopting the technical scheme, the locking force in the inner and outer directions can be provided after the clamping groove and the locking ring are locked, so that the front end part is fixed more firmly, and the working reliability is improved.
As a preferred technical scheme:
the front end part of the rear end part is provided with an embedded groove, and the rear end part is provided with an adjacent part adjacent to the embedded groove;
the distance between the side walls of the embedding grooves is larger than the thickness of the adjacent parts, so that two front limiting steps are formed on the front end faces of the adjacent parts, each front limiting step is provided with a forward step face, and the supporting structure is formed.
Has the advantages that: by adopting the technical scheme, the embedded groove can play a role in positioning the front end part along the thickness direction of the machine head body, so that the integral connection strength is improved on the premise that the front end part is detachable, and a support structure is conveniently formed to support the front end part.
As a preferred technical scheme:
one end of the embedding groove close to the outer side of the rear end part is a blind end, and the blind end is used for being matched with the front end part in a blocking mode along the inner direction and the outer direction.
Has the advantages that: by adopting the technical scheme, the inner and outer stops are carried out by depending on the blind end of the embedded groove, and the positioning reliability can be improved through a simpler structure.
As a preferred technical scheme:
the front end portion has a first side wall and a second side wall which are arranged at intervals in a thickness direction of the front end portion to form a wire winding space through which a binding wire passes;
the thickness of the first side wall is larger than that of the second side wall, and a wire guide block mounting structure is arranged on the first side wall and used for fixing and assembling the wire guide block;
the rear end of the first side wall is provided with a rear limiting step, and the rear limiting step is provided with a backward step surface for supporting the front end surface of the rear end part.
Has the advantages that: by adopting the technical scheme, the rear limiting step can further improve the connection reliability of the front end part and the rear end part, particularly, the groove wall on one side of the clamping groove can be clamped between the clamping protrusion and the rear limiting step, and the connection strength is better.
The machine head of the steel bar binding machine adopts the following technical scheme:
the machine head of the steel bar binding machine comprises a machine head body, wherein a wire guide block is arranged on the machine head body;
the machine head body is also provided with a shell connecting structure, and the shell connecting structure is used for fixedly assembling the machine head body on a shell of the steel bar binding machine;
the aircraft nose body includes:
the front end part is used for fixedly assembling a wire guide block of the steel bar binding machine and is used for forming a wire guide channel together with a wire guide groove on the wire guide block so as to bend the binding wire sent by a wire feeding mechanism into a circular shape;
a rear portion, the rear portion having the housing connection structure;
the front end part and the rear end part are detachably connected through a detachable structure and used for replacing the front end part of the guide wire block with the required specification when in use.
Has the advantages that: according to the technical scheme, the machine head body is divided into the front end part and the rear end part, the rear end part is fixedly assembled on a shell of the steel bar binding machine, the front end part is used as an installation base of the wire guide block to form a wire guide channel together with the wire guide groove on the wire guide block, and the front end part and the rear end part are detachably connected through a detachable structure, so that when steel bars with corresponding specifications need to be bound, the front end part provided with the wire guide block with the corresponding specification can be directly replaced, compared with the prior art, the whole machine head does not need to be replaced, and the steel bar binding machine can meet the binding requirements of multiple steel bar specifications at lower cost; and the size and the weight of the front end part of the guide wire block with the corresponding specification are greatly smaller than those of the whole machine head, so that the machine head is more convenient for constructors to carry, is convenient to store, is not easy to influence the steel bar binding operation, and solves the problems of high cost and large size of the replaceable machine head of the conventional steel bar binding machine.
As a preferred technical scheme:
one of the front end part and the rear end part is provided with a clamping groove; when the connecting part of the front end part and the rear end part is used, one side close to the steel bar intersection is the inner side, one side back to the steel bar intersection is the outer side, and the notch of the clamping groove faces inwards;
the other one of the front end part and the rear end part is provided with a clamping bulge on the inner side, and the clamping bulge is clamped in the clamping groove;
the front part of the rear end part is provided with a supporting structure, and the supporting structure is at least used for supporting one end of the front end part close to the outside;
the outer side of the connecting part of the front end part and the rear end part is also provided with a locking structure, and the locking structure is at least used for locking the front end part to the rear end part along the front-back direction;
an inner and outer limiting structure is arranged between the front end part and the rear end part and is used for limiting the front end part to move outwards relative to the rear end part.
Has the advantages that: by adopting the technical scheme, the inner end and the outer end of the connecting part of the front end part and the rear end part are respectively fixed through the matching of the clamping protrusion and the clamping groove and the locking structure, the structure is simple, and the replacement is convenient; in addition, because the outward component force is applied to the guide wire block when the binding wire is in a round shape, the arrangement of the inner and outer limiting structures can limit the outward movement of the front end part relative to the rear end part, and the working reliability is ensured.
As a preferred technical scheme: the clamping groove is a long groove and extends along the inner and outer directions;
the clamping bulge is in a strip shape and extends along the inner and outer directions.
Has the advantages that: by adopting the technical scheme, the clamping groove and the clamping protrusion can form rotation stopping fit, so that the connection between the front end part and the rear end part is firmer, and the reliable work of the steel wire bundling machine is ensured.
As a preferred technical scheme: one end of the clamping groove, which faces away from the opening, is a blind end, and the blind end is used for being in stop fit with the clamping protrusion along the inner and outer directions to form the inner and outer limiting structures.
Has the advantages that: by adopting the technical scheme, the structure can be simplified by forming the inner and outer limiting structures by the blind end, and the inner and outer limiting structures do not need to be independently arranged.
As a preferred technical scheme:
the locking structure comprises a locking nose, the locking nose is arranged outside the front end part and protrudes outwards from the front end part;
the lock nose is hooked by the lock catch on the rear end part and is tensioned backwards when the lock catch is locked;
the lock catch comprises:
a lock housing for securing to the rear end portion;
the front end of the lock ring is used for being hooked on the front side of the lock nose, and the rear end of the lock ring is hinged to an operating handle of the lock catch;
and an operating handle hinged on the lock seat and used for tensioning the lock ring towards the back after swinging backwards and exceeding the dead point.
Has the advantages that: adopt above-mentioned technical scheme, the hasp can lock fast and release lock nose, is favorable to the quick replacement of front end portion.
As a preferred technical scheme: the front side of the lock nose is provided with a clamping groove, and the front end part of a locking ring on the lock catch is embedded into the clamping groove;
and the rear end part is provided with a lock ring stopping surface which is used for stopping the lock ring and stopping the lock ring from moving inwards.
Has the advantages that: by adopting the technical scheme, the locking force in the inner and outer directions can be provided after the clamping groove and the locking ring are locked, so that the front end part is fixed more firmly, and the working reliability is improved.
As a preferred technical scheme:
the front end part of the rear end part is provided with an embedded groove, and the rear end part is provided with an adjacent part adjacent to the embedded groove;
the distance between the side walls of the embedding grooves is larger than the thickness of the adjacent parts, so that two front limiting steps are formed on the front end faces of the adjacent parts, each front limiting step is provided with a forward step face, and the supporting structure is formed.
Has the advantages that: by adopting the technical scheme, the embedded groove can play a role in positioning the front end part along the thickness direction of the machine head body, so that the integral connection strength is improved on the premise that the front end part is detachable, and a support structure is conveniently formed to support the front end part.
As a preferred technical scheme:
one end of the embedding groove close to the outer side of the rear end part is a blind end, and the blind end is used for being matched with the front end part in a blocking mode along the inner direction and the outer direction.
Has the advantages that: by adopting the technical scheme, the inner and outer stops are carried out by depending on the blind end of the embedded groove, and the positioning reliability can be improved through a simpler structure.
As a preferred technical scheme:
the front end portion has a first side wall and a second side wall which are arranged at intervals in a thickness direction of the front end portion to form a wire winding space through which a binding wire passes;
the thickness of the first side wall is larger than that of the second side wall, and a wire guide block mounting structure is arranged on the first side wall and used for fixing and assembling the wire guide block;
the rear end of the first side wall is provided with a rear limiting step, and the rear limiting step is provided with a backward step surface for supporting the front end surface of the rear end part.
Has the advantages that: by adopting the technical scheme, the rear limiting step can further improve the connection reliability of the front end part and the rear end part, particularly, the groove wall on one side of the clamping groove can be clamped between the clamping protrusion and the rear limiting step, and the connection strength is better.
The steel bar binding machine adopts the following technical scheme:
the reinforcing steel bar binding machine comprises a shell, wherein the front end of the shell is provided with a machine head;
the machine head comprises a machine head body, and a wire guide block is arranged on the machine head body;
the machine head body is also provided with a shell connecting structure, and the shell connecting structure is used for fixedly assembling the machine head body on a shell of the steel bar binding machine;
the aircraft nose body includes:
the front end part is used for fixedly assembling a wire guide block of the steel bar binding machine and is used for forming a wire guide channel together with a wire guide groove on the wire guide block so as to bend the binding wire sent by a wire feeding mechanism into a circular shape;
a rear portion, the rear portion having the housing connection structure;
the front end part and the rear end part are detachably connected through a detachable structure and used for replacing the front end part of the guide wire block with the required specification when in use.
Has the advantages that: according to the technical scheme, the machine head body is divided into the front end part and the rear end part, the rear end part is fixedly assembled on a shell of the steel bar binding machine, the front end part is used as an installation base of the wire guide block to form a wire guide channel together with the wire guide groove on the wire guide block, and the front end part and the rear end part are detachably connected through a detachable structure, so that when steel bars with corresponding specifications need to be bound, the front end part provided with the wire guide block with the corresponding specification can be directly replaced, compared with the prior art, the whole machine head does not need to be replaced, and the steel bar binding machine can meet the binding requirements of multiple steel bar specifications at lower cost; and the volume and the weight of the front end part of the guide wire block with the corresponding specification are greatly smaller than those of the whole machine head, so that the guide wire block is more convenient for constructors to carry and store, and the influence on the steel bar bundling operation is not easy to cause.
As a preferred technical scheme:
one of the front end part and the rear end part is provided with a clamping groove; when the connecting part of the front end part and the rear end part is used, one side close to the steel bar intersection is the inner side, one side back to the steel bar intersection is the outer side, and the notch of the clamping groove faces inwards;
the other one of the front end part and the rear end part is provided with a clamping bulge on the inner side, and the clamping bulge is clamped in the clamping groove;
the front part of the rear end part is provided with a supporting structure, and the supporting structure is at least used for supporting one end of the front end part close to the outside;
the outer side of the connecting part of the front end part and the rear end part is also provided with a locking structure, and the locking structure is at least used for locking the front end part to the rear end part along the front-back direction;
an inner and outer limiting structure is arranged between the front end part and the rear end part and is used for limiting the front end part to move outwards relative to the rear end part.
Has the advantages that: by adopting the technical scheme, the inner end and the outer end of the connecting part of the front end part and the rear end part are respectively fixed through the matching of the clamping protrusion and the clamping groove and the locking structure, the structure is simple, and the replacement is convenient; in addition, because the outward component force is applied to the guide wire block when the binding wire is in a round shape, the arrangement of the inner and outer limiting structures can limit the outward movement of the front end part relative to the rear end part, and the working reliability is ensured.
As a preferred technical scheme: the clamping groove is a long groove and extends along the inner and outer directions;
the clamping bulge is in a strip shape and extends along the inner and outer directions.
Has the advantages that: by adopting the technical scheme, the clamping groove and the clamping protrusion can form rotation stopping fit, so that the connection between the front end part and the rear end part is firmer, and the reliable work of the steel wire bundling machine is ensured.
As a preferred technical scheme: one end of the clamping groove, which faces away from the opening, is a blind end, and the blind end is used for being in stop fit with the clamping protrusion along the inner and outer directions to form the inner and outer limiting structures.
Has the advantages that: by adopting the technical scheme, the structure can be simplified by forming the inner and outer limiting structures by the blind end, and the inner and outer limiting structures do not need to be independently arranged.
As a preferred technical scheme:
the locking structure comprises a locking nose, the locking nose is arranged outside the front end part and protrudes outwards from the front end part;
the lock nose is hooked by the lock catch on the rear end part and is tensioned backwards when the lock catch is locked;
the lock catch comprises:
a lock housing for securing to the rear end portion;
the front end of the lock ring is used for being hooked on the front side of the lock nose, and the rear end of the lock ring is hinged to an operating handle of the lock catch;
and an operating handle hinged on the lock seat and used for tensioning the lock ring towards the back after swinging backwards and exceeding the dead point.
Has the advantages that: adopt above-mentioned technical scheme, the hasp can lock fast and release lock nose, is favorable to the quick replacement of front end portion.
As a preferred technical scheme: the front side of the lock nose is provided with a clamping groove, and the front end part of a locking ring on the lock catch is embedded into the clamping groove;
and the rear end part is provided with a lock ring stopping surface which is used for stopping the lock ring and stopping the lock ring from moving inwards.
Has the advantages that: by adopting the technical scheme, the locking force in the inner and outer directions can be provided after the clamping groove and the locking ring are locked, so that the front end part is fixed more firmly, and the working reliability is improved.
As a preferred technical scheme:
the front end part of the rear end part is provided with an embedded groove, and the rear end part is provided with an adjacent part adjacent to the embedded groove;
the distance between the side walls of the embedding grooves is larger than the thickness of the adjacent parts, so that two front limiting steps are formed on the front end faces of the adjacent parts, each front limiting step is provided with a forward step face, and the supporting structure is formed.
Has the advantages that: by adopting the technical scheme, the embedded groove can play a role in positioning the front end part along the thickness direction of the machine head body, so that the integral connection strength is improved on the premise that the front end part is detachable, and a support structure is conveniently formed to support the front end part.
As a preferred technical scheme:
one end of the embedding groove close to the outer side of the rear end part is a blind end, and the blind end is used for being matched with the front end part in a blocking mode along the inner direction and the outer direction.
Has the advantages that: by adopting the technical scheme, the inner and outer stops are carried out by depending on the blind end of the embedded groove, and the positioning reliability can be improved through a simpler structure.
As a preferred technical scheme:
the front end portion has a first side wall and a second side wall which are arranged at intervals in a thickness direction of the front end portion to form a wire winding space through which a binding wire passes;
the thickness of the first side wall is larger than that of the second side wall, and a wire guide block mounting structure is arranged on the first side wall and used for fixing and assembling the wire guide block;
the rear end of the first side wall is provided with a rear limiting step, and the rear limiting step is provided with a backward step surface for supporting the front end surface of the rear end part.
Has the advantages that: by adopting the technical scheme, the rear limiting step can further improve the connection reliability of the front end part and the rear end part, particularly, the groove wall on one side of the clamping groove can be clamped between the clamping protrusion and the rear limiting step, and the connection strength is better.
For the subject to be protected by the present patent, each preferred technical solution under the same subject may be adopted alone, and when the preferred technical solutions under the same subject can be combined, two or more preferred technical solutions under the same subject may be arbitrarily combined, and the technical solutions formed by the combination are not specifically described here, and are included in the description of the present patent in this form.
Drawings
FIG. 1 is a schematic view of a rebar binder;
fig. 2 is a schematic view showing an overall structure of a reinforcing bar binding machine according to the related art, in which a housing is not shown;
FIG. 3 is a first perspective view of a first embodiment of a head body of the reinforcing bar binding machine of the present invention;
FIG. 4 is an exploded view of the structure of FIG. 3;
FIG. 5 is a second perspective view of a first embodiment of a head body of the reinforcement bar binding machine of the present invention;
FIG. 6 is an exploded view of the structure of FIG. 5;
FIG. 7 is a perspective view of the front end portion of the handpiece body;
FIG. 8 is a perspective view of a guide wire block;
FIG. 9 is a comparison of a front portion provided with wire guide blocks of different gauges;
the names of the components corresponding to the corresponding reference numerals in the drawings are: 10-a machine head body, 11-a front end part, 12-a rear end part, 13-a first connecting hole, 14-a second connecting hole, 15-a positioning column, 16-a threaded hole, 17-a rear end first side wall, 18-a rear end second side wall, 19-a front end first side wall, 110-a front end second side wall, 111-an embedded groove, 112-a rear limiting step, 113-a clamping groove, 114-a locking nose, 115-a clamping groove, 116-a side wing, 117-a front limiting step, 118-a clamping protrusion, 21-a guide block, 22-a guide groove, 23-a positioning hole, 30-a lock catch, 31-a lock seat, 32-a lock ring and 33-an operating handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of the head body of the reinforcing bar binding machine of the present invention:
as shown in fig. 3, 4 and 5, the head body 10 of the reinforcing bar binding machine includes a front end portion 11 and a rear end portion 12, and the front end portion 11 and the rear end portion 12 are separately provided and detachably connected by a detachable structure. The front end part 11 is used for fixedly installing a guide wire block 21 of the reinforcing steel bar binding machine, and the guide wire block 21 is used for bending the binding wires fed by a wire feeding mechanism into a circular shape; the rear end portion 12 is provided with a housing coupling structure including a first coupling hole 13 and a second coupling hole 14 for fixedly mounting the rear end portion to a housing of the reinforcing bar binding machine. The housing attachment structure is the same as in the prior art and will not be described in detail herein.
The rear end portion 12 includes a housing coupling portion to which a housing of the reinforcing bar binding machine is coupled and a front end coupling portion on which a housing coupling structure is provided; the front end connecting portion is located at the front end of the housing connecting portion for connection of the front end portion 11. After the front end portion 11 of the reinforcing bar binding machine is coupled to the rear end portion 12, the head is formed in an L-shaped structure as a whole. The rear end portion 12 includes a rear first side wall 17 and a rear second side wall 18, the front end portion 11 includes a front first side wall 19 and a front second side wall 110, and the front first side wall 19 and the front second side wall 110 are arranged at intervals in a thickness direction of the front end portion 11 to form a wire winding space through which a binding wire passes; the rear end first side wall 17 and the rear end second side wall 18 are also arranged at intervals in the thickness direction of the front end portion 11, forming a wire winding space through which the binding wire passes. The front first side wall 19 of the front portion 11 is used for fixing the guide wire block 21, and the thickness of the front first side wall is larger than that of the front second side wall 110.
As shown in fig. 3, the connecting portions of the front end portion 11 and the rear end portion 12 respectively form a dividing line on the side surfaces of the two sides of the nose body 10 in the thickness direction, and hereinafter, for the convenience of understanding of the reader, the connecting portion of the front end portion 11 and the rear end portion 12 is taken as the inner side near the intersection of the reinforcing bars in use and the side facing away from the intersection of the reinforcing bars is taken as the outer side, that is, the dividing line is taken as the inner side near the intersection of the reinforcing bars in use of the nose body 10 and the outer side facing away from the intersection of the reinforcing bars in. In this embodiment, the dividing line is perpendicular to the front-rear direction, but in other embodiments, the dividing line may be inclined with respect to the front-rear direction.
As shown in fig. 6, the front end of the rear end portion 12 is provided with an insertion groove 111, and for the sake of convenience of clarity of the structure, a portion of the rear end portion 12 located behind the insertion groove 111 is referred to as an adjacent portion, and the adjacent portion is adjacent to the insertion groove 111; the distance between the side walls of the insertion groove 111 is greater than the thickness of the adjacent portions, so that the front end surfaces of the adjacent portions form two front limiting steps 117, and the front limiting steps 117 have forward step surfaces to form a support structure for supporting the outer end of the front end portion 11. As shown in fig. 4 and 7, the rear end of the front end first side wall 19 of the front end portion 11 is provided with a rear limit step 112, and the rear limit step 112 has a step surface facing rearward and is supported by the front end surface of the rear end portion 12. By the front limit step 117 and the rear limit step 112, the front end portion 11 and the rear end portion 12 can be more stably butted and the connection is more reliable. The end of the fitting groove 111 near the outer side of the rear end portion 12 is a blind end for engaging with the front end portion 11 in a stop manner in the inward and outward directions, which also contributes to improvement in the reliability of positioning in the inward and outward directions of the front end portion 11 and the rear end portion 12.
As shown in fig. 4 and 6, the rear end portion 12 is further provided with two latching grooves 113, and the latching grooves 113 are located on two groove sidewalls of the insertion groove 111, with the notches facing inward. Correspondingly, the front end part 11 is provided with a snap projection 118 on the inner side, and the snap projection 118 is used for being snapped into the snap groove 113. The clamping groove 113 is a long groove and extends along the inner and outer directions; the clamping protrusion 118 is elongated and extends in the inward and outward directions, so that the front end portion 11 can be positioned relative to the rear end portion 12, the front end portion 11 is prevented from swinging relative to the rear end portion 12, and the stability of the overall structure after assembly is improved. To facilitate the engagement of the rear portion 12 along the snap groove 113 into the rear portion 12, the end of the snap projection 118 adjacent to the outer side of the front portion 11 is formed as a circular arc, which is guided when entering the snap groove 113. The end of the clamping groove 113 facing away from the opening is a blind end, and the blind end is used for being in stop fit with the clamping protrusion 118 along the inner and outer directions to form an inner and outer limiting structure for limiting the outward movement of the front end part 11 relative to the rear end part 12. The blind end of the catching groove 113 is also of a circular arc structure in order to fit with the circular arc structure on the catching protrusion 118. The latch groove 113 extends in a direction perpendicular to the front-rear direction for easy processing and assembly.
The outer side of the connection of the front end portion 11 and the rear end portion 12 is further provided with a locking structure for locking the front end portion 11 to the rear end portion 12. Specifically, the outer side of the front end portion 11 is provided with a locking nose 114, and the locking nose 114 protrudes outwards from the front end portion 11; a lock catch 30 is fixed on the outer side of the rear end portion 12, and the lock catch 30 is a structure commonly used in the prior art and comprises a lock seat 31, a lock ring 32 and an operating handle 33. The lock housing 31 is adapted to be secured to the rear end portion 12; the front end of the lock ring 32 is used for hooking the front side of the lock nose 114, and the rear end is used for being hinged on the operating handle 33; an operating handle 33 is hinged on the lock seat 31 for pulling the locking ring 32 backwards after swinging backwards and passing over the dead point. In a preferred embodiment, the front side of the locking nose 114 is provided with a locking groove 115, and the locking groove 115 is used for the front end part 11 of the locking ring 32 to be inserted; the rear end portion 12 is provided with two side wings 116, the side wings 116 form a lock ring stopping surface, and the lock ring stopping surface is used for stopping the lock ring 32 to move inwards, so that the front end portion 11 is tensioned by the clamping groove 115, and the front end portion 11 is prevented from moving inwards and being pulled out of the clamping groove 113.
As shown in fig. 8, a curved guide wire groove 22 is formed on the inner side surface of the guide block 21, and the guide wire groove 22 is fastened to the front end first side wall 19 of the front end portion 11 during assembly to form a guide wire passage for rounding, i.e., bending, the binding wire fed from the wire feeder. A positioning column 15 and a positioning hole 23 are arranged on the corresponding side wall of the front end part 11, the positioning column 15 is a threaded positioning column 15, and a threaded hole 16 is arranged on the threaded positioning column 15; the wire guide block 21 is also provided with a positioning column and a positioning hole, the positioning column is a solid positioning column, and a threaded hole is not formed in the solid positioning column. During assembly, the guide wire block 21 is buckled on the machine head body 10, after the positioning hole 23 is positioned and sleeved on the corresponding positioning column, the screw is arranged in the threaded hole 16 of the positioning column 15 on the front end part 11, and then the guide wire block 21 can be pressed on the front end part 11 of the gun head body. A pair of reference column and the locating hole of mutual adaptation can adopt transition fit, also can adopt interference fit, can satisfy the positioning accuracy requirement can. The location posts and location holes on the front end portion 11 form a guide wire block mounting structure.
As shown in fig. 9, in the present embodiment, 6 leading end portions 11 are arranged corresponding to the rear end portion 12 of the head body 10, and the round diameters of the binding wires corresponding to different leading end portions 11 are different from each other. Of course, in other embodiments, any number of front-end sections 11 with any size may be configured according to the use requirement. Before use, the rear end portion 12 of the nose body 10 is fixed to the housing of the wire binder without disassembly, and a guide block 21 of a corresponding gauge is fixed to each front end portion 11. When construction is required, the front end part 11 is selected according to the specification of the steel bar, the front end part 11 enters the embedded groove 111 from the inner side to the outer side of the rear end part 12, and finally the front end part is installed in place under the stop of the clamping groove 113 and the blind end of the embedded groove 111. At this time, the operating lever 33 of the operating buckle 30 swings forward, the lock ring 32 is made to pass over the lock nose 114 of the front end portion 11 forward, then the lock ring 32 is made to snap into the lock groove 115 in front of the lock nose 114, the operating lever 33 is pulled backward, the operating lever 33 swings backward and pulls the lock ring 32 backward after passing over the dead point, and the mounting of the front end portion 11 is completed. When the reinforcing steel bars with other specifications need to be bundled, the lock catches 30 are operated reversely, the operating handles 33 are separated from the lock noses 114, then the front end parts 11 are moved inwards, the original front end parts 11 can be conveniently and quickly detached, and then the front end parts 11 with the required specifications are mounted, so that the replacement is convenient.
Embodiment 2 of the head body of the reinforcing bar binding machine of the present invention:
the difference between this embodiment and embodiment 1 is that, in embodiment 1, the inner sides of the front end portion 11 and the rear end portion 12 are connected by a clamping groove 113 and a clamping protrusion 118, the clamping groove 113 is a long groove, the clamping protrusion 118 is a long bar shape, and the clamping protrusion 118 slides into the clamping groove 113 along the extending direction of the clamping groove 113 during installation; in this embodiment, the clamping protrusion 118 is a cylindrical protrusion, and the clamping groove 113 can be used for clamping at least half of the radial dimension of the clamping protrusion 118, and during installation, after the clamping protrusion 118 is installed in the clamping groove 113, the front end portion 11 is rotated with the clamping protrusion 118 as a circle center, so that the outer side of the front end portion 11 is supported on the rear end portion 12.
Embodiment 3 of the head body of the reinforcing bar binding machine of the present invention:
this embodiment is different from embodiment 2 in that a click projection 118 is provided on the front end portion 11 and a click groove 113 is provided on the rear end portion 12, and in this embodiment, a click projection 118 is provided on the rear end portion 12 and a click groove 113 is provided on the front end portion 11, and after the click groove 113 on the front end portion 11 is clicked on the click projection 118 at the time of mounting, the front end portion 11 is rotated to be brought into abutment with the rear end portion 12.
Embodiment 4 of the head body of the reinforcing bar binding machine of the present invention:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the snap projection 118 is provided on the front end portion 11 and the snap groove 113 is provided on the rear end portion 12, whereas in this embodiment, the snap projection 118 is provided on the rear end portion 12 and the snap groove 113 is provided on the front end portion 11, when the front end portion 11 is installed in the outside-in direction; meanwhile, in order to avoid the blind end of the fitting groove 111 from affecting the fitting of the tip portion 11, the fitting groove 111 is designed as a through groove that penetrates inside and outside.
Embodiment 5 of the head body of the reinforcing bar binding machine of the present invention:
the present embodiment is different from embodiment 1 in that the click projections 118 are provided on the back surfaces of the front end first side wall 19 and the front end second side wall 110, and the click recesses 113 are projected from the surfaces of the rear end first side wall 17 and the rear end second side wall 18, and in that the rear end portion 12 is fitted on the front end portion 11, unlike embodiment 1 in which the front end portion 11 is fitted on the rear end portion 12.
Embodiment 6 of the head body of the reinforcing bar binding machine of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the outer end of the connection portion between the front end portion 11 and the rear end portion 12 is provided with a locking structure, and the locking structure adopts the matching of the lock catch 30 and the lock nose 114; in the present embodiment, a screw hole 16 is provided on the outer side surface of the front end portion 11, a screw hole is provided on the side wall of the rear end portion 12 on the blind end side of the fitting groove 111, and a screw passing through the screw hole is screwed into the screw hole 16 to detachably fix the front end portion 11.
In a preferred embodiment, the screw is provided with a manual operation portion for directly performing screwing operation by hand, and can be directly attached and detached by hand without using tools. The screw with the manual operation part is the prior art, for example, the screw with the thicker column at the head part can directly apply larger torque to the screw through the column; and holes are arranged on two opposite sides of the head, and a U-shaped operating ring screw is clamped in the holes.
Of course, in another embodiment, a stud may be provided on the outer side surface of the front end portion 11, a stud hole may be provided on the side wall of the rear end portion 12 that is located on the blind end side of the insertion groove 111, and the stud may be directly inserted into the stud hole and detachably fixed to the front end portion 11.
Embodiment 7 of the head body of the reinforcing bar binding machine of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the front side of the lock nose 114 is provided with the locking groove 115, but in this embodiment, the lock nose 114 may not be provided with the locking groove 115, and the lock catch 30 only plays a role of tensioning the lock nose 114 backwards. Since the front end portion 11 is subjected mainly to forward and outward forces during the rounding of the wire and to frictional forces during use of the reinforcement bar binding machine, the front end portion is not easily moved inward to disengage from the rear end portion 12.
Embodiment 8 of the head body of the reinforcing bar binding machine of the present invention:
the difference between this embodiment and the above embodiments is that in the above embodiments, two front limiting steps 117 are formed on the front end surface of the adjacent portion adjacent to the embedding groove 111 on the rear end portion 12 to form a supporting structure for supporting the outer end of the front end portion 11; meanwhile, a rear limit step 112 is arranged on the front end first side wall 19 of the front end part 11; in the embodiment, only the front limit step 117 may be provided, or only the rear limit step 112 may be provided; if only the rear catching step 112 is provided, the rear catching step 112 is preferably provided on both the front first side wall 19 and the front second side wall 110 of the front end portion 11.
Of course, in other embodiments, the support structure for the outer end of the front portion 11 may be formed directly by the front-most end surface of the rear portion 12.
The embodiment of the machine head of the reinforcing steel bar binding machine comprises the following steps: the machine head comprises a machine head body 10, wherein a guide wire block 21 is arranged on the machine head body 10; the machine head body 10 is the machine head body 10 in any embodiment of the machine head of the steel bar binding machine, and is not specifically described here.
The embodiment of the steel bar binding machine of the invention comprises: the steel bar binding machine comprises a shell, wherein the front end of the shell is provided with a machine head, the machine head comprises a machine head body 10, and a wire guide block 21 is arranged on the machine head body 10; the machine head body 10 is the machine head body 10 in any embodiment of the machine head of the steel bar binding machine, and is not specifically described here.
The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.
Claims (10)
1. A machine head body of a steel bar binding machine is provided with a shell connecting structure, and the shell connecting structure is used for fixedly assembling the machine head body on a shell of the steel bar binding machine;
it is characterized in that the machine head body comprises:
the front end part is used for fixedly assembling a wire guide block of the steel bar binding machine and is used for forming a wire guide channel together with a wire guide groove on the wire guide block so as to bend the binding wire sent by a wire feeding mechanism into a circular shape;
a rear portion, the rear portion having the housing connection structure;
the front end part and the rear end part are detachably connected through a detachable structure and used for replacing the front end part of the guide wire block with the required specification when in use.
2. The handpiece body according to claim 1,
one of the front end part and the rear end part is provided with a clamping groove; when the connecting part of the front end part and the rear end part is used, one side close to the steel bar intersection is the inner side, one side back to the steel bar intersection is the outer side, and the notch of the clamping groove faces inwards;
the other one of the front end part and the rear end part is provided with a clamping bulge on the inner side, and the clamping bulge is clamped in the clamping groove;
the front part of the rear end part is provided with a supporting structure, and the supporting structure is at least used for supporting one end of the front end part close to the outside;
the outer side of the connecting part of the front end part and the rear end part is also provided with a locking structure, and the locking structure is at least used for locking the front end part to the rear end part along the front-back direction;
an inner and outer limiting structure is arranged between the front end part and the rear end part and is used for limiting the front end part to move outwards relative to the rear end part.
3. The handpiece body according to claim 2,
the clamping groove is a long groove and extends along the inner and outer directions;
the clamping bulge is in a strip shape and extends along the inner and outer directions.
4. Handpiece body according to claim 2 or 3,
one end of the clamping groove, which faces away from the opening, is a blind end, and the blind end is used for being in stop fit with the clamping protrusion along the inner and outer directions to form the inner and outer limiting structures.
5. Handpiece body according to claim 2 or 3,
the locking structure comprises a locking nose, the locking nose is arranged outside the front end part and protrudes outwards from the front end part;
the lock nose is hooked by the lock catch on the rear end part and is tensioned backwards when the lock catch is locked;
the lock catch comprises:
a lock housing for securing to the rear end portion;
the front end of the lock ring is used for being hooked on the front side of the lock nose, and the rear end of the lock ring is hinged to an operating handle of the lock catch;
and an operating handle hinged on the lock seat and used for tensioning the lock ring towards the back after swinging backwards and exceeding the dead point.
6. The handpiece body according to claim 5,
the front side of the lock nose is provided with a clamping groove, and the front end part of a locking ring on the lock catch is embedded into the clamping groove;
and the rear end part is provided with a lock ring stopping surface which is used for stopping the lock ring and stopping the lock ring from moving inwards.
7. Handpiece body according to claim 2 or 3,
the front end part of the rear end part is provided with an embedded groove, and the rear end part is provided with an adjacent part adjacent to the embedded groove;
the distance between the side walls of the embedding grooves is larger than the thickness of the adjacent parts, so that two front limiting steps are formed on the front end faces of the adjacent parts, each front limiting step is provided with a forward step face, and the supporting structure is formed.
8. Handpiece body according to claim 2 or 3,
the front end portion has a first side wall and a second side wall which are arranged at intervals in a thickness direction of the front end portion to form a wire winding space through which a binding wire passes;
the thickness of the first side wall is larger than that of the second side wall, and a wire guide block mounting structure is arranged on the first side wall and used for fixing and assembling the wire guide block;
the rear end of the first side wall is provided with a rear limiting step, and the rear limiting step is provided with a backward step surface for supporting the front end surface of the rear end part.
9. The machine head of the steel bar binding machine comprises a machine head body, wherein a wire guide block is arranged on the machine head body;
the handpiece body is characterized in that the handpiece body is as claimed in any one of claims 1 to 8.
10. The reinforcing steel bar binding machine comprises a shell, wherein the front end of the shell is provided with a machine head;
the machine head comprises a machine head body, and a wire guide block is arranged on the machine head body;
the handpiece body is characterized in that the handpiece body is as claimed in any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010955951.XA CN112096089B (en) | 2020-09-11 | 2020-09-11 | Reinforcing steel bar binding machine and machine head body and machine head of reinforcing steel bar binding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010955951.XA CN112096089B (en) | 2020-09-11 | 2020-09-11 | Reinforcing steel bar binding machine and machine head body and machine head of reinforcing steel bar binding machine |
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| CN112096089B CN112096089B (en) | 2021-12-24 |
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| CN112096089B (en) | 2021-12-24 |
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