CN219434035U - Wire feeding closed loop detection structure - Google Patents
Wire feeding closed loop detection structure Download PDFInfo
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- CN219434035U CN219434035U CN202320654660.6U CN202320654660U CN219434035U CN 219434035 U CN219434035 U CN 219434035U CN 202320654660 U CN202320654660 U CN 202320654660U CN 219434035 U CN219434035 U CN 219434035U
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Abstract
The utility model provides a wire feeding closed loop detection structure which is arranged on the feeding side of a stepping wire feeding mechanism and is used for detecting whether the wire feeding amount is synchronous with the output amount of the stepping wire feeding mechanism or not and ensuring that correction operation is performed in time when the wire feeding amount is not matched. It comprises the following steps: a housing assembly; the cantilever moving shaft structure comprises a cantilever, a pressing bearing and a spring; the fixed shaft structure comprises a rotating shaft, a code disc and positioning bearings at two ends, wherein the rotating shaft comprises a shaft end and a rotating ring, the rotating ring is positioned at one position in the length direction of the shaft end, the code disc is fixedly arranged on the rotating shaft, the code disc and the rotating shaft synchronously rotate, and the positioning bearings are respectively arranged at two ends of the rotating shaft in the length direction; a digital code acquisition head; and a guide mechanism for guiding the wire to move in a guiding manner; the wire feeding device is characterized in that a guiding mechanism is arranged in an inner cavity of the shell assembly, a wire passes through a wire passing hole in the shell and the inner cavity of the guiding mechanism to perform wire feeding action, and a spacing cavity is arranged in the guiding mechanism and used for detecting the wire.
Description
Technical Field
The utility model relates to the technical field of wire feeding structures, in particular to a wire feeding closed loop detection structure.
Background
The FDM technology is also called a fused deposition modeling technology, which is to heat and melt a filiform hot-melt material, and simultaneously, a three-dimensional spray head selectively coats the material on a workbench according to the profile information of the cross section under the control of a computer, and a layer of cross section is formed after the material is rapidly cooled. The technology has high requirement on the feeding progress of the wire materials, so that the wire feeding operation needs to be carried out through the wire feeding mechanism, the existing wire feeding mechanism only adopts the stepping wire feeding mechanism to finish the wire feeding operation, and does not have a detection structure for feeding back whether the stepping wire feeding is accurate, so that in the actual wire feeding process, the condition that the wire feeding quantity is inaccurate to influence the product quality is often found, and therefore, the wire feeding closed loop detection structure needs to be developed urgently, and the correction operation can be carried out by ensuring that the wire feeding quantity is wrong in the stepping wire feeding process.
Disclosure of Invention
In order to solve the problems, the utility model provides a wire feeding closed loop detection structure which is arranged on the feeding side of a stepping wire feeding mechanism and is used for detecting whether the wire feeding amount is synchronous with the output amount of the stepping wire feeding mechanism or not and ensuring that correction operation is performed in time when the wire feeding amount is not matched.
Wire feeding closed loop detection structure, characterized in that it includes:
a housing assembly;
the cantilever moving shaft structure comprises a cantilever, a pressing bearing and a spring;
the fixed shaft structure comprises a rotating shaft, a code disc and positioning bearings at two ends, wherein the rotating shaft comprises a shaft end and a rotating ring, the rotating ring is positioned at one position in the length direction of the shaft end, the code disc is fixedly arranged on the rotating shaft, the code disc and the rotating shaft synchronously rotate, and the positioning bearings are respectively arranged at two ends of the rotating shaft in the length direction;
a digital code acquisition head;
and a guide mechanism for guiding the wire to move in a guiding manner;
a guide mechanism is arranged in the inner cavity of the shell assembly, the silk thread passes through the thread passing hole on the shell and the inner cavity of the guide mechanism to carry out thread feeding action, and a spacing cavity is arranged in the guide mechanism and used for detecting the silk thread;
a cantilever moving shaft structure is arranged in a cavity at one side of the guide mechanism, one end of the cantilever is pivoted at a corresponding position of an inner cavity of the shell assembly through a fastener, the pressing bearing is fixedly arranged in the middle of the length direction of the cantilever, the outer ring of the pressing bearing faces to a silk thread in the spacing cavity, one end of the spring is propped against the inner wall of the shell assembly, and the other end of the spring presses the other end of the cantilever and drives the outer ring of the pressing bearing to face to the silk thread in the spacing cavity;
the two ends of the fixed shaft structure are respectively positioned and installed in corresponding positioning holes of the shell assembly through positioning bearings, and the rotating circular ring faces the spacing cavity and is tightly attached to the silk thread;
the digital coding acquisition head is fixedly arranged in the inner cavity of the shell assembly and is arranged towards the code disc, and the digital coding acquisition head acquires the rotation value of the code disc and acquires the actual stepping feeding quantity of the silk thread.
It is further characterized by:
the shell assembly comprises an upper shell and a lower shell, and the lower shell is fixedly connected with the upper shell;
preferably, the guide mechanism is formed by assembling and combining guide grooves corresponding to the upper shell and the lower shell, and a spacing cavity is arranged at the position corresponding to the rotary ring and the press-attached bearing, and the outer ends of the guide grooves are respectively arranged corresponding to the wire passing holes on the shell assembly;
preferably, the guide mechanism is formed by combining two groups of guide pipes, a spacing cavity is arranged between the two groups of guide pipes in the length direction, and the outer ends of the guide pipes are respectively arranged corresponding to the wire passing holes on the shell assembly;
the upper shell is downwards convex at the position corresponding to the two guide pipes to form a guide pipe positioning structure, and the lower surface of the guide pipe positioning structure is profiled on the outer surface of the guide pipe to form a guide pipe positioning groove;
the upper surface of the bottom plate of the lower shell is preset with a cantilever threaded hole, a first bearing positioning hole and a collecting head mounting threaded hole, one end of the cantilever is mounted in the cantilever threaded hole through a fastener, a lower positioning bearing of the fixed shaft structure is mounted in the first bearing positioning hole in a positioning manner, and the mounting end of the digital code collecting head is fixedly mounted in the cantilever threaded hole through a fastener;
the lower shell is provided with an auxiliary supporting structure at a position corresponding to the guide pipe, the upper surface of the auxiliary supporting structure is profiled on the outer surface of the guide pipe, and the guide pipe is arranged at the upper surface of the auxiliary supporting structure;
the side wall of the lower shell, which corresponds to the auxiliary supporting structure, is also provided with a guide chute, so that the guide pipe is convenient to install;
the upper shell is provided with a second bearing positioning hole, and the upper positioning bearing of the fixed shaft structure is positioned and installed in the second bearing positioning hole.
After the utility model is adopted, the stepping wire feeding mechanism passes through the stepping signal detection structure, the wires simultaneously pass through the wire feeding closed loop detection mechanism, the stepping signal of the stepping wire feeding mechanism is synchronously matched with the detection signal acquired by the digital code acquisition head of the wire feeding closed loop detection mechanism, the main control system carries out matching judgment on the two signals, and when the two signals are not matched, the fault is judged; the device is arranged on the yarn feeding side of the stepping yarn feeding mechanism and is mainly used for detecting whether the yarn feeding amount is synchronous with the output quantity of the stepping yarn feeding mechanism or not: when the wire feeding amount is detected to be not matched with the set value, a feedback signal is sent out, the main control system receives the feedback signal and performs operation, corrects the wire feeding amount and drives the stepping wire feeding mechanism to operate according to the corrected wire feeding amount; when the wire feeding amount is detected to be more than a certain proportion with the set value, the machine pauses operation and gives an alarm, and after abnormality is eliminated, whether the machine continues to execute is manually confirmed.
Drawings
Fig. 1 is a perspective view of an embodiment of the present utility model (upper housing in an open state);
FIG. 2 is a perspective view of a dead axle structure of the present utility model;
FIG. 3 is an exploded view of the dead axle structure of the present utility model;
FIG. 4 is a perspective view of a cantilever moving shaft structure of the present utility model;
FIG. 5 is an exploded view of the cantilever moving axle structure of the present utility model;
FIG. 6 is a perspective view of the lower housing of the present utility model;
FIG. 7 is a perspective view of the upper housing of the present utility model;
FIG. 8 is a working assembly block diagram of a combination post-construction and stepper wire feeder and main control system incorporating the present utility model;
FIG. 9 is a schematic diagram of the operation of the combination of the present utility model with a stepper wire feeder and a main control system.
Detailed Description
1-7, the wire feeding closed loop detection structure comprises a shell component, a cantilever moving shaft structure 1-1, a fixed shaft structure 1-2, a digital coding acquisition head 1-3 and a guide tube component;
the shell assembly comprises an upper shell 1-7 and a lower shell 1-6, wherein the upper shell 1-7 and the lower shell 1-6 are fixedly connected, in the figure, the lower shell 1-6 and the upper shell 1-7 are fixedly meshed through a buckle 1-6-7 and a clamping groove 1-7-1, in a feasible alternative embodiment, internal threads are arranged inside the lower shell 1-6 and the upper shell 1-7, or lugs with internal threaded through holes are arranged at joints, and the screws are connected with the internal threads to fix the lower shell 1-6 and the upper shell 1-7;
the cantilever moving shaft structure 1-1 comprises a cantilever 1-1-1, a press-attached bearing 1-1-4 and a spring 1-1-6; the spring 1-1-6 is arranged at the position of a positioning bulge spigot at one end of the cantilever 1-1, the press-attached bearing 1-1-3 is screwed up above a middle hole position of the cantilever 1-1-1 through a pin shaft screw 1-1-4 and is locked through a nut 1-1-5, and the whole cantilever moving shaft structure 1-1 is arranged in a cantilever threaded hole 1-6-4 of the lower shell 1-6 through a screw 1-1-2;
the fixed shaft structure comprises a rotating shaft 1-2-4, a code wheel 1-2-3 and positioning bearings 1-2-1 at two ends, wherein the rotating shaft 1-2-4 comprises a shaft end and a rotating ring, the rotating ring is positioned at the middle area position of the shaft end in the length direction, the code wheel 1-2-3 is fixed in the middle of the rotating shaft 1-2-4 through a set screw 1-2-2, the positioning bearings 1-2-1 are arranged at two ends of the rotating shaft 1-2-4, and the whole fixed shaft structure 1-2 is respectively arranged in a first bearing hole site 1-6-5 of a lower shell 1-6 and a second bearing hole site 1-7-3 of an upper shell 1-7 through the positioning bearings 1-2-1;
in the specific embodiment, the guide mechanism is a guide tube assembly, and the guide tube assembly is formed by combining two groups of guide tubes 1-5;
the middle part of the inner cavity of the shell assembly is provided with a guide pipe assembly, the outer ends of the two groups of guide pipes 1-5 are respectively butted with a wire passing hole 1-6-3 on the shell assembly, and a wire 3 passes through the wire passing hole 1-6-3 and the inner cavity of the guide pipe 1-5 to carry out wire feeding action;
a spacing cavity is arranged between the two groups of guide pipes 1-5 in the length direction, a cantilever moving shaft structure 1-1 is arranged in a cavity on one side of the two groups of guide pipes 1-5, the outer ring of the pressing bearing 1-1-3 faces towards the silk thread 3 in the spacing cavity, one end of the spring 1-1-6 is propped against the inner wall of the lower shell 1-6, the other end of the spring 1-1-6 presses the other end of the cantilever 1-1-1, and the outer ring of the driving pressing bearing 1-1-3 faces towards the silk thread 3 in the spacing cavity;
the two ends of the fixed shaft structure 1-2 are respectively positioned and installed in corresponding positioning holes of the shell component through positioning bearings 1-2-1, and the rotating ring faces the spacing cavity and is tightly attached to the silk thread 3;
the digital coding acquisition head 1-3 is fixed on the threaded hole 1-6-1 of the lower shell 1-6 through the screw 1-4 and is arranged towards the code wheel 1-2-3, and the digital coding acquisition head 1-3 acquires the rotation value of the code wheel 1-2-3 and acquires the actual stepping feeding quantity of the silk thread 3.
In the concrete implementation, the positions of the upper shell 1-7 corresponding to the two guide pipes 1-5 are downwards convex to form a guide pipe positioning structure, and the lower surface of the guide pipe positioning structure is arranged on the outer surface of the guide pipe in a copying way to form guide pipe positioning grooves 1-7-2;
the lower shell 1-6 is provided with an auxiliary supporting structure 1-6-6 at a position corresponding to the guide pipe, the upper surface of the auxiliary supporting structure 1-6-6 is profiled on the outer surface of the guide pipe 1-5, and the guide pipe 1-5 is arranged at the upper surface position of the auxiliary supporting structure 1-6-6;
the side wall of the lower shell 1-6 corresponding to the auxiliary supporting structure 1-6-6 is also provided with a guide chute 1-6-2, so that the installation of a guide pipe is facilitated.
After the utility model is adopted, the wire 3 passes through the guide tube 1-5, and when passing through the rotating shaft 1-2-4, the pressing bearing 1-1-3 on the cantilever moving shaft structure 1-1 is extruded for a distance, the compression spring 1-1-6 deforms, when the wire 3 continues to move downwards, the extrusion force drives the fixed shaft structure 1-2 with the bearing 1-2-1 arranged at two ends to rotate, the code disc 1-2-3 fixed on the rotating shaft 1-2-4 synchronously rotates along with the rotating shaft 1-2-4, and the digital code acquisition head 1-3 arranged on the lower shell 1-6 acquires a stepping signal.
Referring to fig. 8 and 9, the stepping wire feeding mechanism 2 inputs a constant stepping signal by the system, and drives the wire 3 to perform linear motion according to a constant speed, at this time, the digital code acquisition head 1-3 in the wire feeding closed loop detection structure 1 acquires the stepping signal, and transmits the stepping signal to the main control system to compare with the input constant stepping signal of the stepping wire feeding mechanism 2, and determines a fault when the main control system is not matched with the input constant stepping signal of the stepping wire feeding mechanism 2, and the fault is arranged on the feeding side of the stepping wire feeding mechanism, and is mainly used for detecting whether the wire feeding amount is synchronous with the output quantity of the stepping wire feeding mechanism: when the wire feeding amount is detected to be not matched with the set value, a feedback signal is sent out, the main control system receives the feedback signal and performs operation, corrects the wire feeding amount and drives the stepping wire feeding mechanism to operate according to the corrected wire feeding amount; when the ratio of the wire feeding amount to the set value exceeds 30% is detected, the machine is stopped to operate, and a warning is sent out, and after abnormality is removed, whether the machine is continuously executed is manually confirmed.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. A wire feed closed loop detection structure, comprising:
a housing assembly;
the cantilever moving shaft structure comprises a cantilever, a pressing bearing and a spring;
the fixed shaft structure comprises a rotating shaft, a code disc and positioning bearings at two ends, wherein the rotating shaft comprises a shaft end and a rotating ring, the rotating ring is positioned at one position in the length direction of the shaft end, the code disc is fixedly arranged on the rotating shaft, the code disc and the rotating shaft synchronously rotate, and the positioning bearings are respectively arranged at two ends of the rotating shaft in the length direction;
a digital code acquisition head;
and a guide mechanism for guiding the wire to move in a guiding manner;
a guide mechanism is arranged in the inner cavity of the shell assembly, the silk thread passes through the thread passing hole on the shell and the inner cavity of the guide mechanism to carry out thread feeding action, and a spacing cavity is arranged in the guide mechanism and used for detecting the silk thread;
a cantilever moving shaft structure is arranged in a cavity at one side of the guide mechanism, one end of the cantilever is pivoted at a corresponding position of an inner cavity of the shell assembly through a fastener, the pressing bearing is fixedly arranged in the middle of the length direction of the cantilever, the outer ring of the pressing bearing faces to a silk thread in the spacing cavity, one end of the spring is propped against the inner wall of the shell assembly, and the other end of the spring presses the other end of the cantilever and drives the outer ring of the pressing bearing to face to the silk thread in the spacing cavity;
the two ends of the fixed shaft structure are respectively positioned and installed in corresponding positioning holes of the shell assembly through positioning bearings, and the rotating circular ring faces the spacing cavity and is tightly attached to the silk thread;
the digital coding acquisition head is fixedly arranged in the inner cavity of the shell assembly and is arranged towards the code disc, and the digital coding acquisition head acquires the rotation value of the code disc and acquires the actual stepping feeding quantity of the silk thread.
2. The wire feed closed loop detection structure of claim 1, wherein: the shell assembly comprises an upper shell and a lower shell, and the lower shell is fixedly connected with the upper shell.
3. A wire feed closed loop detection structure as defined in claim 2, wherein: the guide mechanism is formed by assembling and combining guide grooves corresponding to the upper shell and the lower shell, a spacing cavity is formed at the position corresponding to the rotary ring and the press-attached bearing, and the outer ends of the guide grooves are respectively arranged corresponding to the wire passing holes on the shell assembly.
4. A wire feed closed loop detection structure as defined in claim 2, wherein: the guide mechanism is formed by combining two groups of guide pipes, a spacing cavity is arranged between the length directions of the two groups of guide pipes, and the outer ends of the guide pipes are respectively arranged corresponding to the wire passing holes on the shell assembly.
5. The wire feed closed loop detection structure of claim 4, wherein: the upper shell is downwards convex at the position corresponding to the two guide pipes to form a guide pipe positioning structure, and the lower surface of the guide pipe positioning structure is profiled on the outer surface of the guide pipe to form a guide pipe positioning groove.
6. The wire feed closed loop detection structure of claim 5, wherein: the upper surface of the bottom plate of the lower shell is preset with a cantilever threaded hole, a first bearing positioning hole and a collecting head mounting threaded hole, one end of the cantilever is mounted in the cantilever threaded hole through a fastener, a lower positioning bearing of the fixed shaft structure is mounted in the first bearing positioning hole in a positioning mode, and the mounting end of the digital code collecting head is fixedly mounted in the cantilever threaded hole through the fastener.
7. The wire feed closed loop detection structure of claim 6, wherein: the lower shell is provided with an auxiliary supporting structure corresponding to the position of the guide tube, the upper surface of the auxiliary supporting structure is profiled on the outer surface of the guide tube, and the guide tube is arranged on the upper surface of the auxiliary supporting structure.
8. The wire feed closed loop detection structure of claim 7, wherein: the side wall of the lower shell corresponding to the auxiliary supporting structure is also provided with a guide chute, so that the guide tube is convenient to install.
9. A wire feed closed loop detection structure as defined in claim 2, wherein: the upper shell is provided with a second bearing positioning hole, and the upper positioning bearing of the fixed shaft structure is positioned and installed in the second bearing positioning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320654660.6U CN219434035U (en) | 2023-03-29 | 2023-03-29 | Wire feeding closed loop detection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320654660.6U CN219434035U (en) | 2023-03-29 | 2023-03-29 | Wire feeding closed loop detection structure |
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| CN219434035U true CN219434035U (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320654660.6U Active CN219434035U (en) | 2023-03-29 | 2023-03-29 | Wire feeding closed loop detection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116652334A (en) * | 2023-07-31 | 2023-08-29 | 苏芯物联技术(南京)有限公司 | Wire feeding sensor structure for submerged arc welding and use method |
-
2023
- 2023-03-29 CN CN202320654660.6U patent/CN219434035U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116652334A (en) * | 2023-07-31 | 2023-08-29 | 苏芯物联技术(南京)有限公司 | Wire feeding sensor structure for submerged arc welding and use method |
| CN116652334B (en) * | 2023-07-31 | 2023-09-22 | 苏芯物联技术(南京)有限公司 | Wire feeding sensor structure for submerged arc welding and use method |
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