Detection tool suitable for spinning manifold pressure cover

Abstract

The utility model discloses a detection tool suitable for a spinning manifold pressure cover, the pressure cover comprises an external thread to be detected, the detection tool comprises a support member capable of generating linear displacement, a displacement measurement mechanism used for measuring the displacement value of the support member and arranged on the support member, an operation sleeve and an elastic member, the operation sleeve is provided with an internal thread matched with an external thread to be detected, and the operation sleeve can be rotationally arranged relative to the supporting piece and can be arranged on the supporting piece in a sleeving manner; the upper end of the elastic piece is arranged on the supporting piece, and the extending direction of the elastic piece is parallel to the linear displacement direction of the supporting piece. According to the detection tool, the thread gap of the external thread to be detected can be detected only by screwing the pressure cover to be detected on the operation sleeve and then pressing the operation sleeve, a high-precision thread detector with high price does not need to be used, the cost is greatly saved, the detection process is simplified, and the detection tool is convenient, rapid, high in efficiency, small in overall size and convenient to use. And taking or carrying and storing are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a detection tool suitable for spinning beam pressure cover in the field of chemical fiber technology. BACKGROUND

[0002] In the process of chemical fiber spinning, the spinning pack is a very important spinning component, and the spinning pack is usually connected to the spinning beam by the pressure cover, and a filter screen or other melt filtering device is arranged between the pressure cover and the spinning pack, the melt passes through the pressure cover and the filter screen or other melt filtering device, and then enters the spinning pack connected to the pressure cover to be sprayed out, therefore, the pressure cover plays an important role in connecting and communicating, and its precision and accuracy will greatly affect the stability and quality of the spinning.

[0003] Generally, the first, the pressure cover is connected to other components by screwing, therefore, the number of screwing turns of the external thread is one of the important indicators, since the pressure cover and the spinning pack are often disassembled to clean the spinning pack, if the thread of the pressure cover is damaged after long-term use, the unreasonable number of screwing turns will have a negative impact on the connection effect, and even may cause leakage.

[0004] Secondly, since the spinning pack or the spinning beam is in a high temperature state of about 200-300 DEG C during the spinning process, the thread gap between the pressure cover and the spinning pack will be deformed under high temperature, if the external thread of the pressure cover matches the internal thread of the spinning pack, it will be difficult to disassemble after high temperature deformation, therefore, some deformation amount is usually reserved during design, but the deformation amount cannot be too large, otherwise the connection will not be tight, and cannot be too small, otherwise it will be difficult to disassemble after high temperature deformation.

[0005] Thirdly, the pressure cover is also provided with melt flow channels, usually a plurality of melt flow channels are provided, and the relative positions of the melt flow channels must be accurate, otherwise the pressure of the melt flow will change greatly, and the continuous and stable supply of the melt will be affected.

[0006] At present, the above three aspects are usually measured separately, the number of screwing turns and the thread gap are usually detected by high-precision thread detectors, and the relative positions of the melt flow channels are usually detected by high-precision measuring rulers or other high-precision measuring devices, however, the above devices not only consume time and effort, and have low efficiency, but also the high-precision thread detector not only has high price, but also usually needs a driving mechanism to drive, has high precision, high replacement cost and complex structure and large size. UTILITY MODEL CONTENTS

[0007] The utility model discloses a novel detection tool suitable for spinning beam pressure cover which can solve at least one problem in the prior art.

[0008] To achieve the above object, the utility model adopts the technical scheme of:

[0009] A detection tool suitable for spinning beam pressure cover, the spinning beam pressure cover includes to be measured outer thread, the detection tool includes:

[0010] Supporting piece, can linear displacement occurs;

[0011] Displacement measuring mechanism, for measuring the displacement value that the supporting piece occurs and is arranged on the supporting piece;

[0012] Operating sleeve, the operating sleeve is formed with the inner thread that cooperates with the to be measured outer thread, the operating sleeve can be rotatably arranged on the supporting piece and can be set on the supporting piece;

[0013] Elastic piece, the upper end is arranged on the supporting piece, and the extension direction of the elastic piece is parallel with the linear displacement direction of the supporting piece;

[0014] The detection tool includes detection state and non-detection state, when the detection tool is in the non-detection state, the inner thread is formed with the thread gap after being screwed with the to be measured outer thread, the elastic piece is in the first compression state, and the supporting piece is in the first position;When the detection tool is in the detection state, the elastic piece is in the second compression state, and the supporting piece is in the second position;Wherein, the thread gap is the distance between the second position and the first position, and the compression degree of the second compression state is greater than or equal to the compression degree of the first compression state.

[0015] According to some preferred aspects of the utility model, when the detection tool is in the non-detection state, the lower end surface of one thread in the inner thread and the upper end surface of the corresponding thread in the to be measured outer thread form the thread gap;When the detection tool is in the detection state, the lower end surface and the upper end surface are attached.

[0016] According to some preferred aspects of the utility model, the upper end of the supporting piece forms a limiting step, and when the detection tool is in the non-detection state or the detection state, the operating sleeve can be pressed on the limiting step.

[0017] In some embodiments of the utility model, when the thread gap is 0, the first compression state is same with the second compression state, the first position is same with the second position, when the thread gap is greater than 0, the second position is below the first position, the compression degree of the second compression state is greater than the compression degree of the first compression state.

[0018] According to some preferred aspects of the utility model, the detection tool further comprises a substrate;

[0019] The support piece comprises a support body and a limiting piece arranged on the support body and used for limiting the substrate, and the substrate is sleeved on the support body and can linearly move relative to the support body;

[0020] The upper end of the elastic piece is connected to the support body, and the lower end of the elastic piece is connected to the substrate.

[0021] According to some preferred aspects of the utility model, the limiting piece is arranged below the substrate, when the detection tool is in the non-detection state, the distance between the substrate and the limiting piece is a first distance, when the detection tool is in the detection state, the distance between the substrate and the limiting piece is a second distance, and the second distance is greater than the first distance.

[0022] According to some preferred aspects of the utility model, a plurality of holes and grooves are formed on the support body, the elastic pieces have a number corresponding to the holes and grooves one by one, and the elastic pieces have parts located in the holes and grooves.

[0023] According to some preferred aspects of the utility model, the orthographic projection of the limiting piece is located within the orthographic projection range of the substrate.

[0024] In some embodiments of the utility model, the spinning beam pressure cover further comprises at least two melt flow channels to be measured;

[0025] The lower end of the support piece is formed with support positioning columns corresponding to the melt flow channels to be measured one by one, and each support positioning column can be inserted into the corresponding melt flow channel to be measured.

[0026] According to some preferred aspects of the utility model, when the detection tool is in the detection state, the support positioning columns extend downward from the lower end surface of the operation sleeve.

[0027] According to some preferred aspects of the utility model, when the detection tool is in the non-detection state, the lower end surface of the support positioning column has a gap with the melt flow channel to be measured, and the distance of the gap is greater than the thread gap.

[0028] According to some preferred aspects of the present application, a limiting protrusion is arranged in the operation sleeve, and the limiting protrusion is arranged at the starting position of the upper part of the internal thread.

[0029] According to some preferred aspects of the present application, the upper end surface of the support member is provided with a first detection line, the upper end surface of the operation sleeve is provided with a second detection line, a third detection line and a fourth detection line which can be collinear with the first detection line, and the third detection line and the fourth detection line are arranged on the two sides of the second detection line.

[0030] According to some preferred aspects of the present application, the displacement measuring mechanism is a dial gauge, the dial gauge comprises a measuring rod and a measuring head arranged at the lower end of the measuring rod, and the middle part of the support member is formed with a through hole for the measuring rod and the measuring head to pass through.

[0031] In the present application, the dial gauge is a commercially available product, which is a table type general length measuring tool made of a precision rack and pinion mechanism. It is usually composed of a measuring head, a measuring rod, a shockproof spring, a rack, a gear, a hair spring, a circular dial and a pointer. The working principle of the dial gauge is that the small linear movement of the measuring rod caused by the measured size is enlarged through gear transmission and becomes the rotation of the pointer on the scale disc, so that the size of the measured size is read out. The dial gauge is a measuring instrument that uses rack and pinion or lever gear transmission to convert the linear displacement of the measuring rod into the angular displacement of the pointer.

[0032] In some embodiments of the present application, the detection tool further comprises a locking assembly, the locking assembly comprises a locking hole formed on the support member and a locking pin capable of being inserted into the locking hole, and the locking pin is capable of abutting against the displacement measuring mechanism.

[0033] In some embodiments of the present application, the elastic member is a spring.

[0034] According to some preferred aspects of the present application, the detection tool further comprises a calibration member, the calibration member at least comprises a calibration external thread, the calibration external thread is a preset standard thread of the measured external thread, and the calibration external thread and the internal thread can be screwed to realize the calibration of the detection tool.

[0035] Due to the use of the above technical scheme, the present application has the following advantages compared with the prior art:

[0036] The utility model discloses based on the prior art in the important parameter of pressure cover detects the existing detection equipment price high, big, detection process is complicated and so on defect, innovatively provides a kind of detection tool suitable for the detection tool of spinning beam pressure cover, the detection tool only needs to be detected pressure cover is screwed on operating sleeve, then press operating sleeve can realize the detection of the thread gap of the external thread of the measured, without using the high-precision thread detector of high price, greatly save cost, and also simplify detection process, convenient and fast, high efficiency, while overall small volume, easy to take or carry storage;

[0037] Further, the utility model discloses the utility modelers of the utility model through the cooperation of supporting piece, displacement measuring mechanism, operating sleeve, elastic member etc., realize the displacement of supporting piece with the conversion of thread gap, then the displacement of supporting piece is measured synchronously, and the thread gap value can be obtained, wherein, through the switching of different components in different states, the synchronous detection of multiple functions can be realized by less components and simpler structure;In the utility model, a plurality of support positioning columns are arranged at the bottom of the supporting piece, and they correspond to a measured melt flow passage respectively, then after the plurality of support positioning columns are respectively inserted in the corresponding measured melt flow passage, the distance between the plurality of support positioning columns is set according to the standard melt flow passage spacing in the pressure cover in advance, and whether the relative position of the measured melt flow passage in the pressure cover is accurate, whether unexpected deformation occurs and the like can be directly known through the insertion cooperation condition, especially, the plurality of support positioning columns are arranged, which further ensures the stability when the operating sleeve is threadedly connected with the spinning beam pressure cover (or the calibration piece), since the plurality of support positioning columns exist, after they are inserted in the melt flow passage, the ability of the supporting piece to rotate relative to the spinning beam pressure cover (or the calibration piece) is limited, so that the operating sleeve can be stably, quickly and accurately threadedly connected with the spinning beam pressure cover (or the calibration piece) without interfering with the supporting piece, and the stable arrangement of the supporting piece further ensures that the displacement measuring mechanism does not have unexpected displacement, thereby ensuring the measurement progress.

[0038] Further, the utility model can realize the simultaneous detection of the thread connection number of the pressure cover, the thread gap of the pressure cover, and the relative position between the melt flow passages of the pressure cover, and has simple structure, easy operation and small volume. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative labor.

[0040] Figure 1 The structure schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0041] Figure 2 The structure schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0042] Figure 3 The schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0043] Figure 4 The schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0044] Figure 5 The top view schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0045] Figure 6 The schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure. Figure 5 The schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0046] Figure 7 The schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0047] Figure 8 The simplified structure schematic diagram of the detection tool in the non-detection state in the embodiment of the present application is shown in the figure.

[0048] Figure 9 The simplified structure schematic diagram of the detection tool in the non-detection state in the embodiment of the present application is shown in the figure.

[0049] Figure 10 The structure schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0050] Figure 11 The structure schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0051] Figure 12 The structure schematic diagram of the detection tool suitable for the spinning beam pressure cover in the embodiment of the present application is shown in the figure.

[0052] Figure 13 It is the cooperation schematic view of displacement measuring mechanism, base plate, limiting piece and the like structure in the embodiment of the utility model;

[0053] Figure 14 It is the structure schematic view of operation sleeve in the embodiment of the utility model;

[0054] Figure 15 It is the structure schematic view of calibration piece in the embodiment of the utility model;

[0055] Figure 16 It is the overhead schematic view of calibration piece in the embodiment of the utility model;

[0056] In the drawing mark: 1, support piece; 11, limiting step; 12, support main body; 121, hole groove; 122, clamping groove; 13, limiting piece; 14, support positioning column; 15, first detection line; 16, through hole; 2, dial indicator; 21, measuring rod; 22, measuring head; 3, operation sleeve; 31, internal thread; 32, limiting protrusion; 33, second detection line; 34, third detection line; 35, fourth detection line; 36, let go of the hole; 37, clamping step; 4, elastic piece; 5, base plate; 61, locking hole; 62, locking pin; 7, calibration piece; 71, calibration external thread; 72, calibration melt flow passage; 8, cover plate; H, thread gap. DETAILED DESCRIPTION

[0057] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the utility model is described in detail below by combining with the drawings and specific embodiments. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0058] In the description of the utility model, the meaning of "multiple" is at least two, for example two, three, etc., unless there is a clear specific limitation.

[0059] In the utility model, unless there is a clear specific provision and limitation, the terms "mounting", "connection", "connecting", "fixing" and the like terms should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless there is a clear limitation. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0060] In utility models, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] It should be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0062] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0063] like Figures 1 to 16 As shown, this example provides a testing tool suitable for a spinning box pressure cover. The spinning box pressure cover includes an external thread to be tested. The testing tool includes a support 1 capable of linear displacement, a displacement measuring mechanism for measuring the displacement value of the support 1 and disposed on the support 1, an operating sleeve 3, and an elastic element 4.

[0064] The operating sleeve 3 has an internal thread 31 that mates with the external thread to be tested. The operating sleeve 3 is rotatably mounted relative to the support member 1 and can be fitted onto the support member 1. The upper end of the elastic member 4 is mounted on the support member 1, and the extension direction of the elastic member 4 is parallel to the linear displacement direction of the support member 1.

[0065] The testing tool includes a testing state and a non-testing state. When the testing tool is in the non-testing state, the internal thread 31 is screwed into the external thread to be tested, forming a thread gap H. The elastic element 4 is in a first compression state, and the support element 1 is in a first position. When the testing tool is in the testing state, the elastic element 4 is in a second compression state, and the support element 1 is in a second position. The thread gap H is the distance between the second position and the first position. The degree of compression in the second compression state is greater than or equal to the degree of compression in the first compression state.

[0066] In the example, when the detection tool is in the non-detection state, a lower end surface of one of the internal threads 31 and an upper end surface of a corresponding thread in the external thread to be detected form a thread gap H; when the detection tool is in the detection state, the lower end surface and the upper end surface are in abutment. Further, the upper end of the support member 1 forms a limiting step 11, and the operating sleeve 3 can be pressed against the limiting step 11 when the detection tool is in the non-detection state or the detection state. Further, when the thread gap H is 0, the first compression state is the same as the second compression state, and the first position is the same as the second position; when the thread gap H is greater than 0, the second position is below the first position, and the compression degree of the second compression state is greater than that of the first compression state.

[0067] In the example, the detection tool further comprises a base plate 5, the support member 1 comprises a support body 12 and a limiting member 13 arranged on the support body 12 and used for limiting the base plate 5, and the base plate 5 is sleeved on the support body 12 and can linearly move relative to the support body 12; the upper end of the elastic member 4 is connected to the support body 12, the lower end of the elastic member 4 is connected to the base plate 5, and the orthographic projection of the limiting member 13 is within the orthographic projection range of the base plate 5. Further, the limiting member 13 is arranged below the base plate 5, the distance between the base plate 5 and the limiting member 13 is a first distance when the detection tool is in the non-detection state, and the distance between the base plate 5 and the limiting member 13 is a second distance when the detection tool is in the detection state, the second distance being greater than the first distance. In order to facilitate the setting stability of the elastic member and the protection thereof, a plurality of holes and grooves 121 are formed on the support body 12, the elastic member 4 has a number corresponding to that of the holes and grooves 121, and the elastic member 4 has a part located in the holes and grooves 121.

[0068] In the example, the spinning beam pressure cover further comprises at least two melt flow channels to be detected; the lower end of the support member 1 forms a number of support positioning columns 14 corresponding to the number of the melt flow channels to be detected, and each support positioning column 14 can be inserted into a corresponding melt flow channel to be detected. Further, when the detection tool is in the detection state, the support positioning column 14 extends downward from the lower end surface of the operating sleeve 3; when the detection tool is in the non-detection state, the lower end surface of the support positioning column 14 and the melt flow channel to be detected have a spacing therebetween, and the distance of the spacing is greater than the thread gap.

[0069] In the example, the operating sleeve 3 is provided with a limiting protrusion 32, and the limiting protrusion 32 is arranged at the starting position of the upper part of the internal thread 31. Further, the upper end surface of the support member 1 is provided with a first detection line 15, the upper end surface of the operating sleeve 3 is provided with a second detection line 33, a third detection line 34 and a fourth detection line 35 which can all be collinear with the first detection line 15, and the third detection line 34 and the fourth detection line 35 are arranged on the two sides of the second detection line 33.

[0070] In the example, the displacement measuring mechanism is a dial gauge 2, which includes a measuring rod 21, a measuring head 22 arranged at the lower end of the measuring rod 21, and a through hole formed in the middle of the support 1 for the measuring rod 21 and the measuring head 22 to pass through.

[0071] The dial gauge is a commercially available product, which is a table type general length measuring tool made of a precision rack and pinion mechanism. It is usually composed of a measuring head, a measuring rod, a shockproof spring, a rack, a pinion, a hair spring, a circular dial, and a pointer. The working principle of the dial gauge is that the small linear movement of the measuring rod caused by the measured size is enlarged through pinion transmission and is converted into the rotation of the pointer on the scale disc, so that the size of the measured size is read out. The dial gauge is a measuring instrument that converts the linear displacement of the measuring rod into the angular displacement of the pointer by using a rack and pinion or a lever gear transmission. The structure thereof will not be described in detail here.

[0072] In the example, the detection tool further includes a locking assembly, which includes a locking hole 61 formed on the support 1 and a locking pin 62 capable of being inserted into the locking hole 61, and the locking pin 62 is capable of abutting against the displacement measuring mechanism.

[0073] In the example, the elastic member 4 is a spring, which has a simple structure, can achieve accurate resetting, has a long service life, and is convenient to install and disassemble.

[0074] In the example, the detection tool further includes a calibration member 7, which at least includes a calibration external thread 71 and a plurality of calibration melt flow passages 72. The calibration external thread 71 is a preset standard thread of the measured external thread, and the calibration external thread 71 and the internal thread 31 can be screwed to realize the calibration of the detection tool. By inserting the plurality of support positioning columns 14 into the corresponding melt flow passages (or calibration melt flow passages) respectively and judging the accuracy of the relative positions between the melt flow passages (or calibration melt flow passages) according to the insertion and fitting conditions, the calibration and verification of the relative positions of the melt flow passages (or calibration melt flow passages) can be realized.

[0075] Referring to Figures 1 to 4As shown, the operation sleeve 3 of the detection tool in this example is a hollow structure, and the lower part is an open full opening structure, and the upper part has an upper opening allowing the dial gauge 2 to be exposed, the upper part of the dial gauge 2 protrudes from the operation sleeve 3 and the support 1, and the inner thread 31 formed inside the operation sleeve 3 has a clamping step 37 above it, which cooperates with the limiting step 11 of the support 1 to position and clamp, and the operation sleeve 3 also has a let go hole 36 formed thereon, which facilitates the insertion of the locking pin 62 into the locking hole 61 through the let go hole 36, and the locking hole 61 is aligned with the corresponding position of the dial gauge, thereby facilitating the fixation of the dial gauge 2 on the support 1, so that when the support 1 is linearly displaced, the dial gauge 2 can also be linearly displaced, and when the measuring rod 21 of the dial gauge 2 is displaced, it represents the displacement of the thread gap, and multiple conversions realize the measurement of the thread gap, and the measurement principle of the dial gauge is prior art, and the dial gauge can also be commercially available, and will not be described in detail here; further, the locking pin 62 can be a bolt, and the locking hole 61 can be a bolt hole. Figure 2 With reference to Figure 1 A cover plate is hidden, which cover plate 8 can block the risk of exposure and avoid debris from falling in.

[0076] Meanwhile, referring to Figure 5 As shown, a first detection line 15 is also arranged on the upper end surface of the support 1, and a second detection line 33, a third detection line 34 and a fourth detection line 35 are arranged on the upper end surface of the operation sleeve 3, and the third detection line 34 and the fourth detection line 35 are arranged on the left and right sides of the second detection line 33, when the operation sleeve 3 is screwed relative to the calibration piece 7 (or the pressure cover to be measured) and the screwing is completed, if the first detection line 15 is aligned with the second detection line 33, it indicates that the number of turns of the external thread on the calibration piece 7 (or the pressure cover to be measured) is reasonable and accurate, if the first detection line 15 deviates from the second detection line 33 but is located between the third detection line 34 and the fourth detection line 35, it indicates that although it is not the most ideal state, it can be accepted within the fluctuation range, and if the first detection line 15 is completely outside the area defined between the third detection line 34 and the fourth detection line 35, it indicates that the number of turns of the external thread is seriously inaccurate (of course, this is only for the pressure cover to be measured, and the calibration piece is a high-precision standard piece that is set at the beginning, and all its parameters are in the best state).

[0077] Referring to Figures 1 to 9As shown, when the detection tool of the example is in detection, the operating sleeve 3 is pressed manually, and since the operating sleeve 3 is pressed on the support 1 and the dial gauge 2 is arranged on the support 1, the operating sleeve 3 is pressed, and the support 1 and the dial gauge 2 are simultaneously driven to move downward, and when moving downward, since the base plate 5 is supported on the step inside the calibration piece 7 (or the pressure cover to be detected), the spring is compressed, and the support body 12 and the limiting piece 13 of the support 1 are not affected and can move downward, so that the measuring head 22 and the measuring rod 21 of the dial gauge 2 can play a measuring role; as shown in Figure 8 and Figure 9 As shown, the relative position relationship between the internal thread 31 on the operating sleeve 3 and the external thread (or calibration external thread 71) on the calibration piece 7 (or the pressure cover to be detected) in different states is simply shown, as shown in Figure 8 When no external force is applied, that is, the operating sleeve 3 is not pressed manually, the spring is also compressed due to the gravity of the support 1 and the operating sleeve 3, and at this time, the lower end face of a thread on the operating sleeve 3 and the upper end face of a thread on the calibration piece 7 (or the pressure cover to be detected) form a thread gap H, and as shown in Figure 9 When the external force is applied, that is, the operating sleeve 3 is pressed manually to the preset position, that is, the lower end face of a thread on the operating sleeve 3 and the upper end face of a thread on the calibration piece 7 (or the pressure cover to be detected) are in close contact, and cannot continue to move downward, which is equivalent to reaching the preset position (that is, the end position), at this time, the thread gap H is eliminated by the linear displacement of the operating sleeve 3, and is converted into the linear displacement of the support 1, and the linear displacement of the support 1 is measured by the dial gauge 2, so that the measurement of the thread gap is realized by the above simple structure, without the need for high-priced sensor detection equipment; wherein the size of the thread gap is an index that needs to be detected and concerned, if the measured value of the thread gap is within the set range, it means that the pressure cover to be detected is qualified, if the measured value of the thread gap is outside the set range, it means that the pressure cover to be detected is unqualified and needs to be repaired or replaced with a new one; of course, the parameters of the calibration piece 7 are optimal, and the detection is ideal, and the calibration piece 7 is mainly used for calibration of the support 1, the operating sleeve 3 and the dial gauge 2, if the measured value of the thread gap by the calibration piece 7 is not the preset value, it means that at least one of the support 1, the operating sleeve 3 and the dial gauge 2 has a defect or problem, and needs to be recalibrated.

[0078] As shown in Figures 10 to 14As shown, the schematic structure of the support 1, the operation sleeve 3, the base plate 5, the dial gauge 2 and the like is exemplarily given, the base plate 5 is generally annular, which is sleeved on the outer periphery of the support body 12, the limiting piece 13 is detachably clamped in the clamping groove 122 on the support body 12, in the normal non-detection state, the base plate 5 is generally not in contact with the limiting piece 13, and is spaced apart by a certain distance, and the overall radial dimension of the limiting piece 13 is small, hidden in the range of the orthographic projection of the base plate 5, and the lowermost end of the support body 12 is provided with two support positioning columns 14, and the distance between them is set according to the standard distance between the melt flow channels in the standard pressure cover, so that when they are inserted into the melt flow channels of the pressure cover to be detected, it can be directly known whether the distance between the melt flow channels of the pressure cover to be detected meets the requirements, and after insertion, the limiting of the support 1 in the horizontal direction is also realized, the rotating action of the support 1 is limited, thereby the stability of the support 1 during the rotation of the operation sleeve 3 is better guaranteed, and the stability of the dial gauge 2 is further guaranteed; as shown in the figure, the support 1 is generally wide at the upper end and narrow at the lower end, the lower end is exposed from the lower opening of the operation sleeve and extends outward, so that when the dial gauge 2 and the support positioning column 14 can be connected or matched with the corresponding position of the calibration piece 7 (or the pressure cover to be detected) during the rotation of the calibration piece 7 (or the pressure cover to be detected).

[0079] Referring to Figures 15 to 16 As shown, the calibration piece 7 collects all the structural features of the pressure cover to be detected, such as external threads (corresponding to calibration external threads 71) and melt flow channels (corresponding to calibration melt flow channels 72), therefore, the design of the standard piece completely replicates all the structural features of the standard pressure cover, of course, the part of the structural features not needing to be detected can not be embodied, and the part of the structural features needing to be detected is completely replicated, so that the calibration of other components can be realized through the standard calibration piece 7, and the inaccurate detection result caused by the detection tool itself is avoided.

[0080] In summary, based on the defects of high price, large size and complicated detection process of the detection equipment in the prior art when detecting the important parameters of the pressure cover, the novel detection tool suitable for the pressure cover of the spinning beam is innovatively provided, the detection tool only needs to rotate the pressure cover to be detected on the operation sleeve, and then press the operation sleeve to realize the detection of the thread gap of the external threads to be detected, without using the high-precision thread detector with high price, thereby greatly saving the cost, simplifying the detection process, being convenient and fast, high in efficiency, and small in overall size, and being convenient to take or carry and store;

[0081] Further, the utility model discloses the utility modelers through the cooperation of supporting piece, displacement measuring mechanism, operating sleeve, elastic piece etc., realize the displacement of supporting piece with the conversion of thread gap, and then the displacement of supporting piece is measured synchronously, and the thread gap value can be obtained, wherein, through the switching of different components in different states, the synchronous detection of multiple functions can be realized by fewer components and simpler structure; in the utility model, a plurality of supporting positioning columns are arranged at the bottom of the supporting piece, and they correspond to a melt flow passage to be measured respectively, then after the plurality of supporting positioning columns are respectively inserted in the corresponding melt flow passage to be measured, the distance between the plurality of supporting positioning columns is set according to the standard melt flow passage spacing in the pressure cover, and whether the position of the melt flow passage to be measured in the pressure cover is accurate, whether unexpected deformation occurs and the like can be directly known through the insertion cooperation condition, especially, the plurality of supporting positioning columns are arranged, which further ensure the stability when the operating sleeve is threadedly connected with the spinning beam pressure cover (or the calibration piece), because of the plurality of supporting positioning columns, after they are inserted in the melt flow passage, the ability of the supporting piece to rotate relative to the spinning beam pressure cover (or the calibration piece) is limited, and then the operating sleeve can be stably, quickly and accurately connected on the spinning beam pressure cover (or the calibration piece) without interference to the supporting piece, and the stable arrangement of the supporting piece further ensures that the displacement measuring mechanism does not have unexpected displacement, and then the measurement progress is ensured, in addition, when the operating sleeve is connected on the spinning beam pressure cover, the number of turns of the external thread on the spinning beam pressure cover can be confirmed according to the number of turns, to ensure the tightness of the later connection, and avoid the melt leakage.

[0082] Further, the utility model can realize the simultaneous detection of the number of turns of the pressure cover thread, the pressure cover thread gap, and the relative position between the pressure cover melt flow passages, and has simple structure, easy operation and small size.

[0083] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent change or modification according to the spirit and essence of the utility model should be covered in the protection scope of the utility model.

Claims

1. A testing tool for a pressure cover of a spinning box, the pressure cover of the spinning box including an external thread to be tested, characterized in that, The detection tools include: Support components that are capable of linear displacement; A displacement measuring mechanism, which is used to measure the displacement value of the support member and is disposed on the support member; An operating sleeve is formed with an internal thread that mates with the external thread to be tested. The operating sleeve is rotatably disposed relative to the support and can be sleeved on the support. An elastic element, the upper end of which is disposed on the support member, wherein the extension direction of the elastic element is parallel to the linear displacement direction of the support member; The testing tool includes a testing state and a non-testing state. When the testing tool is in the non-testing state, the internal thread and the external thread to be tested are screwed together to form a thread gap, the elastic element is in a first compression state, and the support element is in a first position. When the testing tool is in the testing state, the elastic element is in a second compression state, and the support element is in a second position. The thread gap is the distance between the second position and the first position, and the degree of compression in the second compression state is greater than or equal to the degree of compression in the first compression state.

2. The testing tool for the pressure cover of a spinning box according to claim 1, characterized in that, When the testing tool is in the non-testing state, the lower end face of one of the internal threads forms the thread gap between the upper end face of the corresponding thread in the external thread to be tested; when the testing tool is in the testing state, the lower end face is in contact with the upper end face.

3. The detection tool for the pressure cover of a spinning box according to claim 1, characterized in that, The upper end of the support member forms a limiting step. When the detection tool is in the non-detection state or the detection state, the operating sleeve can be pressed onto the limiting step. And / or, when the thread clearance is 0, the first compression state is the same as the second compression state, and the first position is the same as the second position. When the thread clearance is greater than 0, the second position is located below the first position, and the degree of compression of the second compression state is greater than the degree of compression of the first compression state.

4. The detection tool for the pressure cover of a spinning box according to claim 1, characterized in that, The detection tool also includes a substrate; The support includes a support body and a limiting member disposed on the support body for limiting the substrate. The substrate is sleeved on the support body and is capable of linear movement relative to the support body. The upper end of the elastic element is connected to the support body, and the lower end of the elastic element is connected to the substrate.

5. The detection tool for the pressure cover of a spinning box according to claim 4, characterized in that, The limiting member is disposed below the substrate. When the detection tool is in the non-detection state, the distance between the substrate and the limiting member is a first distance; when the detection tool is in the detection state, the distance between the substrate and the limiting member is a second distance, the second distance being greater than the first distance; and / or, the support body has a plurality of holes and slots formed thereon, the elastic member has a number corresponding to each hole and slot, and a portion of the elastic member is located within the hole and slot; and / or, the orthographic projection of the limiting member is located within the orthographic projection range of the substrate.

6. The detection tool for the pressure cover of a spinning box according to claim 1, characterized in that, The spinning box pressure cover also includes at least two melt flow channels to be tested; The lower end of the support member has a number of support positioning posts corresponding to the flow channels of the melt to be tested, and each support positioning post can be inserted into the corresponding flow channel of the melt to be tested.

7. The testing tool for the pressure cover of a spinning box according to claim 6, characterized in that, When the detection tool is in the detection state, the support positioning column extends downward from the lower end of the operating sleeve; And / or, When the testing tool is in the non-testing state, there is a gap between the lower end face of the support positioning column and the flow channel of the melt to be tested, and the distance of the gap is greater than the thread clearance.

8. The testing tool for the pressure cover of a spinning box according to claim 1, characterized in that, The operating sleeve is provided with a limiting protrusion, which is located at the starting position of the upper part of the internal thread; and / or, The upper end face of the support member is provided with a first detection line, and the upper end face of the operating sleeve is provided with a second detection line, a third detection line and a fourth detection line, all of which are collinear with the first detection line. The third detection line and the fourth detection line are arranged on both sides of the second detection line.

9. The testing tool for the pressure cover of a spinning box according to claim 1, characterized in that, The displacement measuring mechanism is a dial indicator, which includes a measuring rod and a probe disposed at the lower end of the measuring rod. A through hole is formed in the middle of the support member for the measuring rod and the probe to pass through; and / or, The detection tool also includes a locking component, which includes a locking hole formed on the support and a locking pin that can be inserted into the locking hole, the locking pin being able to abut against the displacement measuring mechanism.

10. The detection tool for the pressure cover of a spinning box according to claim 1, characterized in that, The elastic element is a spring; and / or, The testing tool also includes a calibration component, which at least includes a calibration external thread. The calibration external thread is a preset standard thread of the external thread to be tested, and the calibration external thread and the internal thread can be screwed together to achieve the calibration of the testing tool.

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