CN219869440U - Outer diameter measuring device for plastic products - Google Patents

Abstract

The utility model provides an outer diameter measuring device of a plastic product, which comprises a base, a measuring standard component and a measuring tool, wherein the measuring tool comprises a lasso which is partially crossed and penetrated to form a collar part and a coiling part, a reel, a coiling module, a first test piece and a second test piece, wherein the reel and the coiling module are connected with two coiling ends of the coiling part and are respectively connected in a mounting groove through vertical pivoting. The utility model not only greatly improves the coincidence rate of the detected center and the center of the plastic product, but also applies centripetal force to the plastic product, so that the probability of deformation of the plastic product is obviously reduced, thereby greatly improving the detection accuracy and being convenient to operate.

Description

Outer diameter measuring device for plastic products

Technical Field

The utility model belongs to the technical field of measurement, and particularly relates to an outer diameter measuring device for plastic products.

Background

Currently, for plastic products, plastic injection molding is basically used, and the inside diameter or outside diameter of the molded product needs to be actually measured to avoid the flow of unqualified products to the market, for example: however, in order to obtain some size information of the cup cover, the outer diameter detection is performed by adopting a conventional caliper, namely, two main cards of the caliper are abutted against two opposite sides of the cup cover, and the size of the cup cover is obtained by the distance formed between the main cards, so that although the detection mode is feasible, a great measurement error exists, and the main reason is that the detection object is easy to deform, so that the following two points cannot be achieved:

1) The interference force formed by the clamping contact position is not well controlled, and the contact deformation is easy to cause, so that a detection error is formed;

2) When the detected size is large, the center of the formed detection cannot coincide with the center of the detection object, and thus the obtained distance information cannot coincide with the actual diameter, resulting in a detection error.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a totally new plastic product outer diameter measuring device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an outer diameter measuring device of a plastic article, comprising:

the base is provided with a placing groove and a mounting groove, wherein the placing groove is used for placing a plastic product to be measured;

the outer contour formed by the measuring standard piece around the vertical direction is similar to the outer contour of the plastic product to be measured around the vertical direction, and the outer diameter formed by the outer contour is smaller than or equal to the designed outer diameter of the plastic product to be measured;

the measuring tool comprises a lasso which is partially crossed and penetrated to form a collar part and a coiling part, a reel, a coiling module, a first test piece and a second test piece, wherein the reel and the coiling module are respectively connected in the mounting groove through a pivot in the vertical direction; when the outer diameter is measured, the collar part is tightened and sleeved on the outer periphery of the plastic product to be measured, the measured outer diameter is R, the outer diameter of the measurement standard part is R1, and the difference between the actually measured expansion and contraction of the measuring instrument and the set expansion and contraction is L, wherein R=R1+L.

According to one specific implementation and preferred aspect of the utility model, the design outer diameter of the plastic product to be measured is R2, wherein R1 is 0.9-1.0 times of R2. Under the general circumstances, the design external diameter of the plastic product to be measured is very close to the external diameter of the measurement standard component, so that the sizing verification can be rapidly carried out, the actual measurement of the external diameter of the product slightly larger than the external diameter of the measurement standard component can be met, and the practicability is improved.

Preferably, l=0, r=r1=r2. That is, when the measured expansion/contraction amount=the fixed contraction amount, the outer diameter of the measurement standard component, the outer diameter of the product, and the designed outer diameter are all the same, so that the accuracy of the outer diameter parameter of the plastic product to be measured with the fixed diameter is verified.

According to a further specific and preferred aspect of the utility model, the mounting groove comprises a first groove body and a second groove body which are spaced relatively, wherein the reel is mounted to the first groove body by a rotary connector, and the winding part is inserted from the end and wound around the periphery of the reel; the winding module is mounted on the second groove body, and the winding part is inserted from the other end part and is wound on the periphery of the winding module. Therefore, the tightening or loosening operation of the collar portion can be completed by controlling both end portions of the winding portion.

Preferably, the first debugging piece comprises an adjusting sliding block which can movably extend into the first groove body from one side of the base, and a knob which is connected with the adjusting sliding block and penetrates out of the corresponding side part of the base, wherein the knob is screwed in or loosened to drive the adjusting sliding block to synchronously move inwards or outwards, and the reel and the coiling part are relatively abutted or loosened. The tension formed by the knob adjusts the length of the winding part wound on the reel, and the collar part is tightened or loosened by the movement of the end part fixed and the other end part relatively generated.

Preferably, a fixed seat is arranged in the center of the reel corresponding to the first groove body, the reel is rotatably arranged on the fixed seat, and a plurality of finger slots are uniformly distributed on the reel around the circumference. In this case, the rotation adjustment of the reel is facilitated by the arrangement of the finger slots.

According to still another specific implementation and preferred aspect of the present utility model, the measuring instrument includes a pull rod type electronic ruler mounted on the fixing base, a stop bar connected with the winding module in a synchronous motion, and a tension spring for tensioning the winding module inwards to tighten the collar part, wherein the pull rod of the pull rod type electronic ruler abuts against the stop bar, the stop bar moves synchronously with the winding module, and the pull rod abuts against the stop bar to change the telescopic amount. The structure layout is compact, and parameters of the expansion and contraction quantity can be obtained relatively flexibly, so that accurate measurement data can be obtained.

In some specific embodiments, the winding module is projected from top to bottom to form a sector shape, the second groove body comprises a sector-shaped groove matched with the winding module, and a bottom groove communicated with the sector-shaped groove and used for installing a tension spring, the winding module is rotatably installed in the sector-shaped groove from the circle center of the sector, and two ends of the tension spring are respectively connected between the base and the winding module. The fan-shaped profile here works well for the relative tightening or loosening of the collar portion of the reel portion, which results in traction forces being generated in the tangential direction of the collar portion at the portion of the reel portion between the first groove body passing out and into the collar portion, while the tightening and fitting operation is facilitated by the cooperation of the traction direction formed by the reel.

Preferably, the stop bar is arranged on the upper part of the pivot shaft connected with the winding module and is relatively fixed with the winding module; the pull rod is intersected with the stop bar, and the pull rod is in telescopic contact with the stop bar along the length direction of the pull rod.

In addition, the lasso is a flexible metal strip, wherein one section of the crossing part is penetrated from the middle part to form a perforation, the other section of the crossing part is provided with notches from the upper side and the lower side to form an insertion part, the insertion part penetrates out of the perforation, and the penetration part penetrates out and retreats to synchronously tighten inwards or loosen the collar part outwards. Under the cooperation of the design, the main functions are as follows: 1. the tightening and loosening of the sleeve ring part are convenient to implement; 2. the twisting in the vertical direction in the tightening or loosening process is avoided, namely, the upper part and the lower part are kept parallel to be tightened or loosened, in other words, the center line of the sleeve ring part is kept to be completely overlapped with the center line of the plastic product to be measured, and the detection precision is improved.

Due to the implementation of the technical scheme, compared with the prior art, the utility model has the following advantages:

in the prior plastic product outer diameter measurement, the deformation of a product caused by interference formed by clamping contact cannot be avoided, and the coincidence rate of the formed detection center and the center of a detection object cannot be improved, so that the defects of high detection result error rate, inconvenient operation and the like cannot be overcome.

Drawings

FIG. 1 is a schematic view of the structure of the outer diameter measuring device for plastic products according to the present utility model (unclamped state);

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is a schematic top view of FIG. 1;

FIG. 4 is a schematic cross-sectional view of A-A of FIG. 3;

FIG. 5 is a schematic illustration of a lasso construction of an outer diameter measuring device for plastic articles according to the present utility model;

FIG. 6 is a schematic view of the structure of the outer diameter measuring device (tightened state) of the plastic product of the present utility model;

FIG. 7 is a schematic view of the structure of the device for measuring the outer diameter of a plastic product according to the present utility model (when measuring the diameter);

wherein: 1. a base; 10. a placement groove; 11. a mounting groove; 111. a first tank body; 112. a second tank body; c1, a sector groove; c2, a bottom groove;

2. measuring a standard;

3. a measuring tool; 30. lasso; 300. a collar portion; 301. a winding part; q1, perforating; q2, an insertion portion; 31. a reel; 310. a finger slot; 32. a winding module; 33. a first test piece; 330. an adjusting slide block; 331. a knob; 34. a second test piece; 340. a pull rod type electronic ruler; g. a pull rod; 341. a stop bar; 342. a tension spring;

B. a plastic cup.

Description of the embodiments

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature. It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1 to 7, the outer diameter measuring device of the plastic product in this embodiment is particularly suitable for detecting the outer diameter of a plastic cup or a plastic cup cover, in this embodiment, a plastic cup B is taken as an example, and the outer diameter measuring device includes a base 1, a measuring standard 2 and a measuring tool 3.

Specifically, the base 1 is provided with a placing groove 10 and a mounting groove 11, wherein the placing groove 10 is used for placing a plastic product to be measured (such as a plastic cup B); the mounting groove 11 is used for mounting the measuring tool 3.

The outer contour of the measuring standard 2 around the vertical direction is similar to the outer contour of the plastic product to be measured around the vertical direction, and the outer diameter of the outer contour is smaller than or equal to the designed outer diameter of the plastic product to be measured. In some embodiments, the design outer diameter of the plastic product to be measured is R2, and the outer diameter of the measurement standard is R1, where R1 is 0.9-1.0 times R2, and in this example, the design outer diameter of the plastic product to be measured is very close to the outer diameter of the measurement standard.

As shown in fig. 2 and 5 again, the measuring tool 3 includes a lasso 30 which is partially crossed and is penetrated to form a collar portion 300 and a winding portion 301, a reel 31 and a winding module 32 which are respectively connected in the mounting groove 11 by pivoting in the vertical direction, a first test piece 33 and a second test piece 34, wherein the lasso 30 is a whole flexible metal strip, a section in the crossed portion is penetrated from the middle to form a penetrating hole q1, the other section in the crossed portion is notched from the upper side and the lower side to form a penetrating portion q2, the penetrating portion q2 penetrates out of the penetrating hole, and the penetrating and retracting of the penetrating portion q2 are aligned in the vertical direction to synchronously tighten or loosen the collar portion 300 inwards or outwards, the collar portion 300 and the winding portion 301 are aligned in the vertical direction, the two winding ends of the winding portion 301 are respectively wound around the reel 31 and the winding module 32 and are mounted on the reel 31 and the winding module 32, the reel 31 and/or the winding module 32 are rotated, the collar portion 300 is then tightened inwards or opened outwards, the first test piece 33 is tightened to limit the length of the reeled 31 by tightening the abutting against the reel 31, and the second test piece 32 is tightened to obtain a measurement measuring instrument for measuring the outer circumference of the collar portion 300.

In some embodiments, the mounting groove 11 includes a first groove body 111 and a second groove body 112 that are relatively spaced apart, wherein a fixed seat is disposed in the first groove body 111, the reel 31 is rotatably mounted on the circumference of the fixed seat and is located in the first groove body 111, a plurality of finger slots 310 are uniformly distributed on the reel 31 around the circumference, and the winding portion 301 is inserted from the end and wound around the circumference of the reel 31; the winding module 32 is mounted on the second slot body 112, and the winding portion 301 is inserted from the other end portion and is wound around the outer periphery of the winding module 32, wherein the winding module 32 is projected from top to bottom to form a fan shape, and the winding module 32 is rotatably mounted in the second slot body 112 from the center of the fan shape. The first test piece 33 includes an adjusting slider 330 movably extending into the first slot 111 from one side of the base, and a knob 331 connected to the adjusting slider 330 and penetrating out from a corresponding side of the base 1, wherein the knob 331 is screwed in or loosened to drive the adjusting slider 330 to synchronously move inwards or outwards, and the reel 31 and the winding portion 301 are relatively abutted or loosened. The measuring instrument comprises a pull rod type electronic ruler 340 arranged on the fixed seat, a stop bar 341 connected with the winding module 32 in a synchronous motion mode, and a tension spring 342 for tensioning the winding module 32 inwards to tighten the collar part 300, wherein a pull rod g of the pull rod type electronic ruler 340 is abutted against the stop bar 341, the stop bar 341 moves synchronously with the winding module 32, and the pull rod g is abutted against the stop bar 341 in a movable mode to change the expansion and contraction amount.

Further, for convenience of assembly, the second slot 112 includes a fan-shaped slot c1 matching with the winding module 32, a bottom slot c2 communicating with the fan-shaped slot c1 and used for installing the tension spring 342, the winding module 32 is rotatably installed in the fan-shaped slot from the center of the fan-shaped circle, and two ends of the tension spring 342 are respectively connected between the base 1 and the winding module 32. The stop 341 is installed on the upper part of the pivot shaft connected with the winding module 32 and is fixed relative to the winding module 32; the pull rod g intersects with the stop strip 341, and the pull rod g is in telescopic contact with the stop strip 341 along the length direction of the pull rod g.

To sum up, the implementation procedure of this embodiment is as follows (taking the cup in fig. 7 as an example):

firstly, when the caliber of a cup (the design caliber of the cup is assumed to be phi 80) needs to be measured, a measuring standard component 2 with the diameter of phi 80 needs to be manufactured firstly, then the measuring standard component 2 is placed into a placing groove 10 on the left side of a base 1, and is placed into a collar part 300 formed by a flexible metal strip 30; secondly, the knob 331 is rotated anticlockwise, so that the adjusting slider 330 does not press the reel 31, at this time, the reel 31 is rotated clockwise, the collar part 300 of the flexible metal strip 30 is driven to tighten inwards, the flexible metal strip 30 tightens and drives the fan-shaped winding module 32 to rotate clockwise until the stop strip 341 on the winding module 32 is aligned with the datum line on the base 1, rotation is stopped, at this time, the collar part 300 of the flexible metal strip 30 is sleeved on the periphery of the measuring standard component 2 from the center, the downward force of the default state of the pull rod g on the pull rod type electronic ruler 340 enables the pull rod g to be tightly attached to the stop strip 341 all the time, then the knob 331 is rotated clockwise, the knob 331 is screwed inwards, so that the adjusting slider 330 tightens one end part of the reel 31 and the winding part 301, and at the same time, the pull rod type electronic ruler 340 is opened under the corresponding telescopic quantity of the pull rod g, so that the reading is displayed as 0.00; finally, the winding module 32 is rotated to retract the other end of the winding part 301 into the first groove 111, so as to loosen the measurement standard 2, then the measurement standard 2 is taken out, at this time, the winding module 32 is reset under the action of the tension spring 342 to the right, then the cup mouth to be measured is inverted, at the same time, the winding module 32 is rotated clockwise, so that the collar part 300 of the flexible metal strip 30 is relatively loose and longer in circumference, the collar part 300 of the flexible metal strip 30 is placed in the collar part 300 from the cup mouth downwards, the hand is loosened, the winding module 32 tightens the collar part 300 of the flexible metal strip 30 under the action of the tension spring 342 and is sleeved around the cup mouth, at the same time, the data on the pull rod type electronic ruler 340 is read, and the data is added with the diameter of the measurement standard 2, namely, the actual caliber of the cup is obtained.

Meanwhile, since the above-mentioned action of displaying a reading of 0.00 is performed, the data on the pull rod type electronic ruler 340 is finally read to be the difference between the actually measured extension amount and the set extension amount (i.e. father L).

In summary, the utility model carries out the adduction of the collar part by operating the end part of the coiling part, firstly carries out the position calibration of the set expansion amount by the measurement standard component, then removes the measurement standard component, and the collar part is used for tightly sleeving the circumference of the plastic product, then the difference between the actually measured expansion amount and the set expansion amount of the measuring instrument and the outer diameter of the measurement standard component are added, and the obtained data is the actually measured outer diameter of the plastic product, so that the utility model not only greatly improves the coincidence rate of the detected center and the center of the plastic product, but also applies the centripetal force to the plastic product, thereby obviously reducing the probability of deformation of the plastic product, greatly improving the detection accuracy and being convenient to operate; on the other hand, the lasso is a flexible metal strip, so that the lasso is convenient to tighten and loosen, and the twisting in the up-down direction in the tightening or loosening process is avoided, namely, the upper and lower parts are kept parallel to tighten or loosen, in other words, the center line of the lasso is kept to be completely coincident with the center line of the plastic product to be measured, and the detection precision is improved; in addition, not only can carry out sizing verification fast, but also can satisfy the product external diameter actual measurement that slightly is greater than the measurement standard external diameter, increase the practicality.

The present utility model has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present utility model and to implement the same, but not to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. An outer diameter measuring device for a plastic article, characterized by comprising:

a base having a placement groove for placement of a plastic article to be measured and a mounting groove;

the outer contour formed by the measuring standard piece around the vertical direction is similar to the outer contour of the plastic product to be measured around the vertical direction, and the outer diameter formed by the outer contour is smaller than or equal to the designed outer diameter of the plastic product to be measured;

the measuring tool comprises a lasso which is partially crossed and penetrated to form a collar part and a coiling part, a reel, a coiling module, a first test piece and a second test piece, wherein the reel and the coiling module are respectively connected in the mounting groove through a pivot in the vertical direction, the collar part and the coiling part are aligned in the up-down direction, two coiling ends of the coiling part are respectively wound around the reel and the coiling module in the circumferential direction and are mounted on the reel and the coiling module, the reel and/or the coiling module rotate, the collar part is folded inwards or unfolded outwards along with the coiling module, the first test piece is tightly abutted to limit the length of the lasso coiled by the reel, the second test piece is a measuring instrument for obtaining the expansion and contraction amount formed by tightly sleeving the outer circumference of the plastic product to be measured through abutting the coiling module to obtain the collar part, the coiling module is in dynamic balance, and the collar part is tightly contracted inwards and sleeved on the outer circumference of the measuring standard piece along with the movement of the coiling module under the state corresponding to the set expansion and contraction amount; when the outer diameter is measured, the sleeve ring part is tightened and sleeved on the outer periphery of the plastic product to be measured, the measured outer diameter is R, the outer diameter of the measurement standard part is R1, and the difference between the actually measured expansion and contraction amount of the measuring instrument and the set expansion and contraction amount is L, wherein R=R1+ + L.

2. The device for measuring the outer diameter of a plastic product according to claim 1, wherein the designed outer diameter of the plastic product to be measured is R2, wherein R1 is 0.9 to 1.0 times of R2.

3. The device for measuring the outer diameter of plastic articles according to claim 2, wherein father l=0, r=r1=r2.

4. The apparatus according to claim 1, wherein the mounting groove includes a first groove body and a second groove body which are spaced apart from each other, wherein the reel is mounted to the first groove body by a rotational coupling, and the winding portion is inserted from an end portion and wound around an outer periphery of the reel; the winding module is mounted on the second groove body, and the winding part is inserted from the other end part and is wound on the periphery of the winding module.

5. The device according to claim 4, wherein the first adjustment member comprises an adjustment slider movably inserted into the first groove from one side of the base, and a knob connected to the adjustment slider and penetrating from a corresponding side of the base, wherein the knob is screwed in or loosened to drive the adjustment slider to move synchronously inward or outward, and to relatively press or loosen the reel and the winding portion.

6. The device for measuring the outer diameter of a plastic product according to claim 4, wherein a fixed seat is arranged in the center of the reel corresponding to the first groove body, the reel is rotatably mounted on the fixed seat, and a plurality of finger slots are uniformly distributed on the reel around the circumference.

7. The device for measuring the outer diameter of a plastic product according to claim 6, wherein the measuring instrument comprises a pull rod type electronic ruler arranged on the fixing seat, a stop bar connected with the winding module in a synchronous motion mode, and a tension spring for tensioning the winding module inwards to tighten the collar part, wherein a pull rod of the pull rod type electronic ruler is abutted against the stop bar, the stop bar moves synchronously with the winding module, and the pull rod is movably abutted against the stop bar to change the expansion and contraction amount.

8. The device for measuring the outer diameter of a plastic product according to claim 7, wherein the winding module is projected from top to bottom to form a sector shape, the second groove body comprises a sector-shaped groove matched with the winding module, a bottom groove communicated with the sector-shaped groove and used for installing the tension spring, the winding module is rotatably installed in the sector-shaped groove from the center of a circle of the sector, and two ends of the tension spring are respectively connected between the base and the winding module.

9. The device for measuring the outer diameter of plastic products according to claim 7, wherein the stop bar is installed at the upper part of the pivot shaft to which the winding module is connected and is fixed relatively to the winding module; the pull rod is intersected with the stop bar, and the pull rod is in telescopic contact with the stop bar along the length direction of the pull rod.

10. The device for measuring an outer diameter of a plastic product according to claim 1, wherein the lasso is a flexible metal strip, wherein one section of the crossing portion is perforated from the middle, the other section of the crossing portion is notched from both upper and lower sides to form a penetration portion, the penetration portion is penetrated from the perforation, and the penetration and retraction of the penetration portion are performed to simultaneously tighten or loosen the collar portion inwardly or outwardly.