CN216182268U - Positioning mechanism and centering device for nozzle and positioning ring of injection molding machine - Google Patents
Positioning mechanism and centering device for nozzle and positioning ring of injection molding machine Download PDFInfo
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- CN216182268U CN216182268U CN202122483724.4U CN202122483724U CN216182268U CN 216182268 U CN216182268 U CN 216182268U CN 202122483724 U CN202122483724 U CN 202122483724U CN 216182268 U CN216182268 U CN 216182268U
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Abstract
A positioning mechanism and a centering device for a nozzle and a positioning ring of an injection molding machine are disclosed, wherein the positioning mechanism comprises a cylindrical center seat with an opening at one end, and a through hole is formed in the side wall of the center seat; a cylindrical positioning sleeve is arranged in the inner cavity of the central seat along the central axis direction, and the front part of the positioning sleeve is matched with the wall of the inner cavity of the central seat through a second bearing; the outer side wall of the central seat is fixedly connected with a dial indicator bracket, the dial indicator bracket is fixedly connected with at least two dial indicators, and measuring heads of the dial indicators respectively penetrate through holes formed in the side wall of the central seat to be contacted with the outer side wall of the positioning sleeve; a sliding rod with adaptive size is arranged in the inner cavity of the positioning sleeve in a penetrating mode, a spring is sleeved on the front portion of the sliding rod, and a conical head is arranged at the front end of the sliding rod; the position measuring mechanism provided by the utility model can convert the offset of any angle of the part to be measured into the degree of the dial indicator, so that the accuracy and the adjustment are convenient to carry out, the offset degree of the center of the nozzle is displayed in real time through the two gauge needles, and the concentric state is convenient to adjust; the centering device for the nozzle and the positioning ring of the injection molding machine comprises the positioning mechanism.
Description
The technical field is as follows:
the utility model relates to the technical field of auxiliary centering devices, in particular to a position measuring mechanism and an injection molding machine nozzle and positioning ring centering device comprising the same.
Background art:
in industrial production, two objects are often required to be matched, and in order to match accurately, the center is required, and if the component is slightly shifted, if a lateral instrument for measuring the position of the component is not provided, the component is not easy to detect, and even if the component is detected, the shift is difficult to quantify, namely, accurate calibration is required.
Specifically, in the debugging process of injection molding machine, the nozzle center of plastify part and the holding ring center of mode locking part need just relatively, all mass production in the general factory of small-size model, and the distance of nozzle hole lateral wall and holding ring is all measured with slide caliper rule to the debugging at every turn, and the waste time, the operation is inconvenient, and the probability of error appearing is also than higher moreover. Debugging staff needs an auxiliary tool which is convenient to operate and can quickly adjust the centering to improve the efficiency.
The utility model has the following contents:
in order to solve the problems and overcome the defects of the prior art, the utility model aims to provide a positioning mechanism with convenient operation and high accuracy and a centering device for a nozzle and a positioning ring of an injection molding machine.
In order to achieve the purpose, the position measuring mechanism provided by the utility model comprises a cylindrical center seat with an open end, wherein the side wall of the center seat is provided with a through hole; a cylindrical positioning sleeve is arranged in the inner cavity of the central seat along the central axis direction, and the front part of the positioning sleeve is matched with the wall of the inner cavity of the central seat through a second bearing; the outer side wall of the central seat is fixedly connected with a dial indicator bracket, the dial indicator bracket is fixedly connected with at least two dial indicators, and measuring heads of the dial indicators respectively penetrate through holes formed in the side wall of the central seat to be contacted with the outer side wall of the positioning sleeve; the inner cavity of the positioning sleeve is provided with a sliding rod in a penetrating mode, the size of the sliding rod is matched with that of the sliding rod, a spring is sleeved on the front portion of the sliding rod, and a conical head is arranged at the front end of the sliding rod.
Furthermore, the center of the outer wall of the rear end of the central seat is fixedly connected with a plug connector.
Furthermore, the side wall of the central seat is provided with a wave bead positioning screw which keeps the positioning sleeve concentric with the central seat under the state of no external force.
Injection molding machine nozzle and holding ring centering device includes: the fixing seat is provided with through holes perpendicular to the side faces, the side face of one end of each through hole is fixedly connected with a preset number of first connecting claws, and the first connecting claws are arranged around the through holes at equal intervals; the first connecting claw is connected with a fixed supporting rod in a hinged mode, and the middle part of the fixed supporting rod is connected with a connecting rod in a hinged mode; a central screw rod penetrates through the through hole, and the rear part of the central screw rod is connected with the fixed seat through a first bearing; the front part of the central screw rod is provided with an adaptive power nut, the outside of the power nut is connected with second connecting claws the number of which is the same as that of the first connecting claws, and the second connecting claws are arranged around the outside of the power nut at equal intervals; the second connecting claw is hinged with the other end of the connecting rod; the front end of the central screw rod is connected with the central part of the rear end of the position measuring mechanism.
Furthermore, a hand wheel is fixedly connected to the rear end of the central screw rod.
Further, the first connecting claw and the second connecting claw are provided with 3 connecting claws.
Furthermore, the middle part of the front end of the central screw is provided with a jack along the central axis direction of the central screw, and the central screw is in plug-in connection with the position measuring mechanism through the jack and the plug.
Furthermore, one end of the fixed supporting rod, which is far away from the first connecting claw, is of a spherical structure.
The utility model has the beneficial effects that: the positioning mechanism provided by the utility model can convert the offset of any angle of the part to be measured into the degree of the dial indicator, so that the calibration and adjustment are convenient to carry out; adopt injection molding machine nozzle and holding ring centring means of position finding mechanism, when the injection molding machine carries out the seat and advances, nozzle centre bore cover is on the conical head of slide bar tip, slide bar and location cover are slidable within a definite time, compression spring, if the nozzle center is decentered with the mode locking holding ring, can lead to the afterbody of position fixing sleeve to take place to deflect, the percentage table measuring head that contacts the position fixing sleeve excircle can transmit inside the percentage table with the skew size, and then the pointer takes place to deflect, nozzle center skew degree shows through two gauge needles in real time, be convenient for adjust back concentric state.
Description of the drawings:
FIG. 1 is a schematic view showing the construction of a position measuring mechanism according to the present invention;
FIG. 2 is a schematic view of a positioning mechanism according to the present invention in a partially cut-away configuration;
FIG. 3 is a schematic view of the centering device of the present invention;
in the drawings: 1. pressing plates of hand wheels; 2. a hand wheel; 3. a bearing gland; 4. a first bearing; 5. a central screw rod; 6. a fixed seat; 7. fixing the support rod; 8. a connecting rod; 9. a power nut; 10. a dial indicator; 11 a center seat; 12. a second bearing; 13. a positioning sleeve; 14. a spring; 15 sliding bar; 16. a dial indicator bracket; 17. wave ball set screw.
The specific implementation mode is as follows:
in order to make the implementation objects, technical solutions and advantages of the present invention clearer, the present invention will be described in more detail below with reference to the accompanying drawings of the present invention.
In the description of the present invention, it is to be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the position measuring mechanism includes a cylindrical center base 11 with an opening at one end, and a through hole is formed in the side wall of the center base 11; a cylindrical positioning sleeve 13 is arranged in the inner cavity of the central seat 11 along the central axis direction, and the front part of the positioning sleeve 13 is matched with the inner cavity wall of the central seat 11 through a second bearing 12; the outer side wall of the central seat 11 is fixedly connected with a dial indicator bracket 16, the dial indicator bracket 16 is fixedly connected with at least two dial indicators 10, and measuring heads of the dial indicators 10 respectively penetrate through holes formed in the side wall of the central seat 11 to be contacted with the outer side wall of the positioning sleeve 13; a sliding rod 15 with adaptive size is arranged in the inner cavity of the positioning sleeve 13 in a penetrating mode, a spring 14 is sleeved on the front portion of the sliding rod 15, and a conical head is arranged at the front end of the sliding rod 15.
The center of the outer wall of the rear end of the central seat 11 is fixedly connected with a plug connector.
And the side wall of the central seat 11 is provided with a wave bead positioning screw 17 which keeps the positioning sleeve 13 concentric with the central seat 11 in a no-external-force state.
As shown in fig. 3, the centering device for the nozzle and the positioning ring of the injection molding machine comprises: the fixing seat 6 is provided with a through hole perpendicular to the side surface, the side surface of one end of the through hole is fixedly connected with a preset number of first connecting claws, and the first connecting claws are arranged around the through hole at equal intervals; the first connecting claw is connected with a fixed supporting rod 7 in a hinged mode, and the middle part of the fixed supporting rod 7 is connected with a connecting rod 8 in a hinged mode; a central screw rod 5 penetrates through the through hole, and the rear part of the central screw rod 5 is connected with a fixed seat 6 through a first bearing 4; the front part of the central screw rod is provided with a power nut 9 which is adaptive, the outside of the power nut 9 is connected with second connecting claws which have the same number with the first connecting claws, and the second connecting claws are arranged around the outside of the power nut 9 at equal intervals; the second connecting claw is hinged with the other end of the connecting rod 8; the front end of the central screw rod 5 is connected with the central part of the rear end of the position measuring mechanism in a mutually rotatable mode.
The rear end of the central screw rod 5 is fixedly connected with a hand wheel 2.
The first connecting claw and the second connecting claw are provided with 3 connecting claws.
The middle part of the front end of the central screw is provided with a jack along the central axis direction of the central screw, and the central screw is connected with the position measuring mechanism through the jack and the plug.
Specifically, the second bearing 12 of the position measuring mechanism is an angular contact ball bearing, can deflect at a small angle, can bear axial force, meets the requirement of the angle when the positioning sleeve 13 deflects by the nozzle compression spring 14,
four wave bead positioning screws 17 are preferably arranged on the central seat 11 close to the tail of the positioning sleeve 13 along the circumferential direction of the side wall, the positioning sleeve 13 deflects to compress the ball head of the wave bead positioning screw 17, and after the nozzle is adjusted to the condition that the central axis of the positioning sleeve and the central axis of the positioning ring are on the same straight line, the wave bead positioning screw 17 can assist the positioning sleeve 13 to reset, so that the coaxiality of the positioning sleeve 13, the central seat 11 and the central screw rod 5 is ensured, and the measured reading is accurate and reliable.
The working principle of the centering device is as follows:
firstly, the hand wheel 2 is rotated to drive the central screw rod 5 to rotate, and further drive the power nut 9 to move along the central screw rod 5, and further the connecting rod 8 is used for expanding the fixed support rod 7 until one end of the fixed support rod 7, which is far away from the first connecting claw, is tightly propped against the inner wall of the positioning ring of the mold locking part; because the holding ring inner wall is provided with the installation step, the globular structure of the 7 tip of fixed stay bars can with the holding ring adaptation of different model sizes, and the top is tight firm, does not drop. The central axis of the conical head at the end parts of the central screw rod 5, the sliding rod 15 and the sliding rod 15 is on the same straight line with the central axis of the positioning ring.
Secondly, when the injection molding machine is seated, the centering device moves forward along with the mold seat, the central hole of the nozzle of the injection molding machine is sleeved on the conical head at the end part of the sliding rod 15 due to the forward movement of the centering device, the sliding rod 15 and the positioning sleeve 13 can slide, the rear end of the conical head can compress the spring 14, if the central axis of the nozzle is not in the same straight line with the central axis of the positioning ring, the tail part of the positioning sleeve 13 can be deflected, the dial indicator 10 contacting the excircle of the positioning sleeve 13 can deflect the pointer, and the deflection degree of the central axis of the nozzle can be displayed in real time through the pointer.
Finally, according to the readings on different dial indicators 10, the position of the nozzle is adjusted, and after the nozzle is adjusted to the condition that the central axis of the nozzle and the central axis of the positioning ring are on the same straight line, the reading of the dial indicator 10 returns to zero.
The positioning mechanism provided by the utility model can convert the offset of any angle of the part to be measured into the degree of the dial indicator 10, so that the calibration and adjustment can be conveniently carried out; adopt injection molding machine nozzle and holding ring centring means of position finding mechanism, when the injection molding machine carries out the seat and advances, nozzle centre bore cover is on the conical head of slide bar 15 tip, slidable between slide bar 15 and position sleeve 13, compression spring 14, the nozzle center if with the mode locking holding ring decentraction, can lead to the afterbody of position sleeve 13 to take place to deflect, contact the percentage table 10 measuring head of position sleeve 13 excircle can transmit the skew size to 10 insides of percentage table, and then the pointer takes place to deflect, nozzle center skew degree is through two gauge needles real-time display, be convenient for adjust back concentric state.
Particularly, the sliding rod 15 is adopted, after the nozzle contacts the positioning device, the sliding rod 15 compresses the spring 14 to drive the positioning sleeve 13 to deflect, the buffer distance is reserved, and the safety of the device is guaranteed. The hand wheel 2 is connected with the rear end of the central screw rod 5 through the hand wheel pressing plate 1 and a bolt, so that the connection is stable and the disassembly is convenient; the bearing gland 3 is arranged outside the first bearing 4, so that the bearing is safe and dustproof.
Except for the technical features described in the specification, the method is known to the technical personnel in the field.
Claims (7)
1. A position measuring mechanism is characterized by comprising a cylindrical central seat (11) with one open end, wherein the side wall of the central seat (11) is provided with a through hole; a cylindrical positioning sleeve (13) is arranged in the inner cavity of the central seat (11) along the central axis direction, and the front part of the positioning sleeve (13) is matched with the inner cavity wall of the central seat (11) through a second bearing (12); the outer side wall of the central seat (11) is fixedly connected with a dial indicator support (16), the dial indicator support (16) is fixedly connected with at least two dial indicators (10), and measuring heads of the dial indicators (10) respectively penetrate through holes formed in the side wall of the central seat (11) to be in contact with the outer side wall of the positioning sleeve (13); a sliding rod (15) with matched size is arranged in the inner cavity of the positioning sleeve (13) in a penetrating mode, a spring (14) is sleeved on the front portion of the sliding rod (15), and a conical head is arranged at the front end of the sliding rod (15).
2. The positioning mechanism according to claim 1, wherein a plug is fixedly connected to the center of the outer wall of the rear end of the central seat (11).
3. The positioning mechanism according to claim 1, wherein the sidewall of the central seat (11) is provided with a bead positioning screw (17) for keeping the positioning sleeve (13) concentric with the central seat (11) in a state of no external force.
4. A centering device for a nozzle and a positioning ring of an injection molding machine comprising the positioning mechanism according to any one of claims 1 to 3, further comprising: the fixing seat (6) is provided with through holes perpendicular to the side faces, the side face of one end of each through hole is fixedly connected with a preset number of first connecting claws, and the first connecting claws are arranged around the through holes at equal intervals; the first connecting claw is connected with a fixed supporting rod (7) in a hinged mode, and the middle part of the fixed supporting rod (7) is connected with a connecting rod (8) in a hinged mode; a central screw rod (5) penetrates through the through hole, and the rear part of the central screw rod (5) is connected with a fixed seat (6) through a first bearing (4); the front part of the central screw rod is provided with a power nut (9) which is adaptive, second connecting claws the quantity of which is the same as that of the first connecting claws are connected to the outside of the power nut (9), and the second connecting claws are arranged around the outside of the power nut (9) at equal intervals; the second connecting claw is hinged with the other end of the connecting rod (8); the front end of the central screw rod (5) is connected with the central part of the rear end of the position measuring mechanism.
5. Centring device according to claim 4, characterized in that the rear end of the central screw (5) is fixedly connected with a hand wheel (2).
6. Centering device according to claim 4, characterized in that said first coupling claw and said second coupling claw are each provided with 3.
7. The centering device as claimed in claim 4, wherein a plug hole is formed in the middle of the front end of the central screw along the central axis of the central screw, and the central screw is connected with the position measuring mechanism through the plug hole and the plug connector in a plug-in manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122483724.4U CN216182268U (en) | 2021-10-15 | 2021-10-15 | Positioning mechanism and centering device for nozzle and positioning ring of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122483724.4U CN216182268U (en) | 2021-10-15 | 2021-10-15 | Positioning mechanism and centering device for nozzle and positioning ring of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216182268U true CN216182268U (en) | 2022-04-05 |
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ID=80866791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122483724.4U Active CN216182268U (en) | 2021-10-15 | 2021-10-15 | Positioning mechanism and centering device for nozzle and positioning ring of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216182268U (en) |
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2021
- 2021-10-15 CN CN202122483724.4U patent/CN216182268U/en active Active
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