A bottle blank wall thickness difference measuring instrument

Abstract

A bottle blank wall thickness difference measuring instrument comprises a fixed seat, a bottle blank supporting tool and a measuring component; the bottle blank supporting tool comprises a support rod, one end of the support rod is a fixed end, the fixed end is connected to the fixed seat, after the connection, the support rod extends in the horizontal direction, the outer periphery of the support rod is axially slidably connected with a sleeve ring for loading the bottle blank, after the bottle blank is loaded, it can rotate circumferentially relative to the sleeve ring, the other end of the support rod is a free end, the free end is provided with a supporting positioning piece for supporting the inner wall of the bottle blank; the measuring component is installed on the fixed seat, and the measuring end of the measuring component extends in the direction of the supporting positioning piece; during the measurement process, it is only necessary to rotate the bottle blank without moving the measuring component, so as to ensure the accuracy of the measurement result; the measuring position is adjusted according to the measurement needs to improve the comprehensiveness and scientificity of the measurement of the bottle blank wall thickness difference.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring instruments, and in particular relates to a bottle blank wall thickness difference measuring instrument. Background Art

[0002] The difference in wall thickness of the preform is measured by rotating the preform in the circumferential direction and using a measuring instrument to measure the difference in wall thickness of the preform in the circumferential direction. Usually, the difference in wall thickness needs to be measured at multiple locations along the axial direction of the preform body. The current method is to move the position of the measuring instrument along the axial direction to measure the difference in wall thickness at multiple locations along the axial direction of the preform body.

[0003] As shown in the Chinese patent document with the announcement number CN213179788U, it discloses an automatic measuring device for the wall thickness of a bottle blank, including a base, a fixed plate, a chuck, a positioning plate and a measuring assembly, wherein the fixed plate is fixed on the base through a support column, the positioning end of the positioning plate is fixed in the through hole of the chuck, the fixed middle end of the positioning plate is fixed in the fixed hole of the fixed plate through a bearing, the end of the positioning plate is embedded in the power gear, the power gear is connected to the micro motor through a gear shaft, and the measuring assembly includes a fixed frame, a gear nut, a micro motor connection, a controller, an outer diameter measuring instrument and an inner diameter measuring instrument. The outer radius and inner radius of a certain point of the bottle blank are synchronously measured by the outer diameter measuring instrument and the inner diameter measuring instrument, and then the difference between the inner and outer radius is calculated as the wall thickness of the point, and the chuck is rotated under the power of the micro motor, thereby realizing the automatic measurement of multiple data sets of the wall thickness of the bottle blank, avoiding the error and workload of manual measurement, and greatly improving the efficiency of wall thickness measurement. However, frequently moving the measuring instrument during the measurement process will cause the reading of the measuring instrument to be unstable, affecting the accuracy of the test results. Therefore, it is necessary to improve the wall thickness difference measuring instrument of the bottle blank. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a bottle preform wall thickness difference measuring instrument.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A bottle blank wall thickness difference measuring instrument comprises a fixed seat, a bottle blank supporting tool and a measuring assembly; the bottle blank supporting tool comprises a support rod, one end of which is a fixed end, and the fixed end is connected to the fixed seat. After the connection, the support rod extends in a horizontal direction, and the outer periphery of the support rod is axially slidably connected with a collar for loading the bottle blank. After the bottle blank is loaded, it can rotate circumferentially relative to the collar, and the other end of the support rod is a free end, and the free end is provided with a supporting positioning piece for supporting the inner wall of the bottle blank; the measuring assembly is installed on the fixed seat, and the measuring end of the measuring assembly extends in the direction of the supporting positioning piece.

[0007] In the utility model, the fixing seat comprises a base and a fixing block, the fixing block is vertically connected to the base, the fixing end of the support rod is connected to the fixing block, and the measuring assembly is mounted on the fixing block.

[0008] In the utility model, the fixed end of the support rod is provided with a support rod connecting section and a support rod limiting section in sequence along the axial direction, and the outer diameter of the support rod limiting section is larger than the outer diameter of the support rod connecting section, thereby forming a support rod limiting end face; the support rod connecting section is connected to the fixed block, and the support rod limiting end face abuts against the fixed block, thereby limiting the axial position and inclination angle of the support rod.

[0009] In the utility model, the fixing block is provided with a support rod installation groove adapted to the support rod connecting section, the support rod connecting section is installed in the support rod installation groove, and is fixed by a connecting piece after installation;

[0010] Alternatively, the fixing block is provided with a support rod U-shaped groove matched with the support rod connecting section in the vertical direction, and the support rod connecting section can slide in the support rod U-shaped groove in the vertical direction and be fixed by a connecting piece after sliding.

[0011] In the utility model, the measuring assembly includes a connecting rod, the first end of which is connected to the fixed block. After the connection, the connecting rod extends in a horizontal direction and is located above the support rod. The second end of the connecting rod is connected to a measuring instrument, and the measuring probe of the measuring instrument extends toward the direction of the supporting positioning member.

[0012] In the utility model, the first end of the connecting rod is provided with a connecting rod connecting section and a connecting rod limiting section in sequence along the axial direction, and the outer diameter of the connecting rod limiting section is larger than the outer diameter of the connecting rod connecting section, thereby forming a connecting rod limiting end face; the connecting rod connecting section is connected to the fixed block, and the connecting rod limiting end face abuts against the fixed block, thereby limiting the axial position and inclination angle of the connecting rod.

[0013] In the utility model, the fixing block is provided with a connecting rod installation groove adapted to the connecting rod connecting section, the connecting rod connecting section is installed in the connecting rod installation groove, and is fixed by a connecting piece after installation;

[0014] Alternatively, the fixing block is provided with a connecting rod U-shaped groove matched with the connecting rod connecting section in the vertical direction, and the connecting rod connecting section can slide in the connecting rod U-shaped groove in the vertical direction and be fixed by a connecting piece after sliding.

[0015] In the utility model, the second end of the connecting rod is provided with a measuring instrument installation hole penetrating in the radial direction, and the rod portion of the measuring instrument can move in the measuring instrument installation hole and be fixed by a connecting piece after movement.

[0016] In the utility model, the second end of the connecting rod is also provided with a measuring instrument positioning hole connected to the measuring instrument mounting hole. After the rod of the measuring instrument moves in the measuring instrument mounting hole, it is fixed by a connecting piece connected to the measuring instrument positioning hole.

[0017] In the present invention, the horizontal axes of the support rod and the connecting rod are in the same vertical plane.

[0018] The beneficial effects of the utility model are as follows: when the measuring instrument of the utility model is used to measure the wall thickness difference of the bottle preform, the collar slides axially on the support rod, the bottle preform loaded on the collar is adjusted to a measuring position corresponding to the measuring end position of the measuring component, the collar is fixed on the support rod to fix the measuring position, the measuring end contacts the outer wall of the bottle preform at the measuring position, and the bottle preform is rotated to measure the wall thickness difference of the bottle preform at this position; during the measurement process, only the bottle preform needs to be rotated, and there is no need to move the measuring component, thereby ensuring the accuracy of the measurement result; the measurement position is adjusted according to the measurement needs, and the comprehensiveness and scientificity of the measurement of the wall thickness difference of the bottle preform are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the measuring instrument in this embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the preform supporting tooling of this embodiment;

[0021] Figure 3 Schematic diagram of the structure of the ring in this embodiment;

[0022] Figure 4 This is a schematic diagram of the structure of the fixing seat of this embodiment;

[0023] Figure 5 Schematic diagram of the structure of the support rod of this embodiment;

[0024] Figure 6 is a schematic diagram of the structure of the measurement component of this embodiment;

[0025] Figure 7 Schematic diagram of the structure of the connecting rod of this embodiment. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] like Figures 1 to 7 As shown, this embodiment discloses a bottle blank wall thickness difference measuring instrument, including a fixed seat 1, a bottle blank supporting tool 2 and a measuring component 3; the bottle blank supporting tool 2 includes a support rod 21, one end of the support rod 21 is a fixed end, and the fixed end is connected to the fixed seat 1. After the connection, the support rod 21 extends in the horizontal direction, and the outer periphery of the support rod 21 is axially slidably connected with a ring 22 for loading the bottle blank. After the bottle blank is loaded, it can rotate circumferentially relative to the ring 22, and the other end of the support rod 21 is a free end, and the free end is provided with a supporting positioning member 23 for supporting the inner wall of the bottle blank; the measuring component 3 is installed on the fixed seat 1, and the measuring end of the measuring component 3 extends toward the supporting positioning member 23. As one of the ways to measure the wall thickness difference of the bottle blank using the measuring instrument of this embodiment, the mouth of the bottle blank is first sleeved on the collar 22 to connect the bottle blank with the bottle blank support fixture 2, and then the collar 22 is adjusted by sliding the support rod 21 axially to make the measuring position of the bottle blank correspond to the measuring end position of the measuring component 3, and then the collar 22 is fixed on the support rod 21 to achieve the loading and positioning of the bottle blank, and then the measuring end of the measuring component 3 is pressed against the outer wall of the measuring part of the bottle blank, and the wall thickness difference of the part of the bottle blank can be measured by rotating the bottle blank. During the measurement process, only the bottle blank needs to be rotated, and there is no need to move the measuring component 3, so as to ensure the accuracy of the measurement result; the measurement position is adjusted according to the measurement needs to improve the comprehensiveness and scientificity of the measurement of the wall thickness difference of the bottle blank.

[0030] In the utility model, the fixing seat 1 includes a base 11 and a fixing block 12, the fixing block 12 is vertically connected to the base 11, the fixing end of the support rod 21 is connected to the fixing block 12, and the measuring assembly 3 is installed on the fixing block 12. The fixing end of the support rod 21 is provided with a support rod connecting section 211 and a support rod limiting section 212 in sequence along the axial direction, the outer diameter of the support rod limiting section 212 is larger than the outer diameter of the support rod connecting section 211, thereby forming a support rod limiting end face 213; the support rod connecting section 211 is connected to the fixing block 12, and the support rod limiting end face 213 abuts against the fixing block 12, thereby limiting the axial position and inclination angle of the support rod 21. When the support rod 21 is connected to the fixing block 12, the support rod 21 is kept horizontally connected through the contact and limiting between the support rod limiting end face 213 and the side of the fixing block 12.

[0031] In this embodiment, the fixing block 12 is provided with a support rod installation groove 121 adapted to the support rod connecting section 211 , and the support rod connecting section 211 is installed in the support rod installation groove 121 and fixed by a connecting piece after installation.

[0032] In another embodiment, the fixing block 12 is provided with a support rod U-shaped groove along the vertical direction, which is matched with the support rod connecting section 211. The support rod connecting section 211 can slide in the support rod U-shaped groove along the vertical direction to adjust the height position of the support rod 21, thereby adjusting the height position of the preform, and is fixed by a connecting piece after sliding. The implementation scheme of the U-shaped groove is not drawn in the drawings of the specification.

[0033] In this embodiment, the support positioning member 23 has a support portion protruding from the support rod 21. The collar 22 and the support positioning member 23 are used to simultaneously position the preform at both ends of the axial direction to ensure that the preform remains horizontal during the measurement process, thereby avoiding measurement errors caused by the tilt of the preform.

[0034] In this embodiment, the measuring assembly 3 includes a connecting rod 31, a first end of which is connected to the fixing block 12, and after connection, the connecting rod 31 extends in the horizontal direction and is located above the supporting rod 21, and a measuring instrument 32 is connected to the second end of the connecting rod 31, and a measuring probe of the measuring instrument 32 extends toward the supporting positioning member 23. The supporting positioning member 23 not only supports the inner wall of the preform, but also provides a positioning point for the measuring probe of the measuring instrument 32, so that the measuring instrument can measure the wall thickness difference more accurately.

[0035] In this embodiment, the first end of the connecting rod 31 is provided with a connecting rod connecting section 311 and a connecting rod limiting section 312 in the axial direction, and the outer diameter of the connecting rod limiting section 312 is larger than the outer diameter of the connecting rod connecting section 311, thereby forming a connecting rod limiting end face 313; the connecting rod connecting section 311 is connected to the fixing block 12, and the connecting rod limiting end face 313 abuts against the fixing block 12, thereby limiting the axial position and inclination angle of the connecting rod 31. When the connecting rod 31 is connected to the fixing block 12, the connecting rod limiting end face 313 is contacted and limited with the side of the fixing block 12, so that the connecting rod 31 is kept horizontally connected. The fixing block 12 is provided with a connecting rod installation groove 122 adapted to the connecting rod connecting section 311, and the connecting rod connecting section 311 is installed in the connecting rod installation groove 122, and is fixed by a connecting piece after installation.

[0036] In another embodiment, the fixing block 12 is provided with a connecting rod U-shaped groove along the vertical direction, which is matched with the connecting rod connecting section 311, and the connecting rod connecting section 311 can slide in the connecting rod U-shaped groove along the vertical direction to adjust the height position of the connecting rod 31, thereby adjusting the height position of the measuring instrument 32, and is fixed by a connecting piece after sliding. The implementation scheme of the U-shaped groove is not drawn in the drawings of the specification.

[0037] In this embodiment, the second end of the connecting rod 31 is provided with a measuring instrument installation hole 314 which penetrates in a radial direction, and the rod portion of the measuring instrument 32 can move in the measuring instrument installation hole 314, and is fixed by a connecting member after moving. Preferably, after the connecting rod 31 is connected to the fixing block 12, the measuring instrument installation hole 314 is arranged in a vertical direction, and the rod portion of the measuring instrument 32 passes through the measuring instrument installation hole 314, so that the dial of the measuring instrument 32 is located above the measuring instrument installation hole 314, and the measuring end of the measuring instrument 32 is located below the measuring instrument installation hole 314, and the rod portion of the measuring instrument 32 can move in the measuring instrument installation hole 314 to adjust the position of the measuring end of the measuring instrument 32.

[0038] In this embodiment, the second end of the connecting rod 31 is further provided with a measuring instrument positioning hole 315 connected to the measuring instrument mounting hole 314. After the rod portion of the measuring instrument 32 moves in the measuring instrument mounting hole 314, it is fixed by a connecting piece connected to the measuring instrument positioning hole 315. The measuring instrument mounting hole 314 can be arranged along the axial direction, radial direction or other directions of the connecting rod 31. The radial and axial arrangements are listed below:

[0039] 1. The second end of the connecting rod 31 is further provided with a measuring instrument positioning hole 315 penetrating in the radial direction. The measuring instrument positioning hole 315 is staggered with the measuring instrument mounting hole 314 in the circumferential direction. After the rod portion of the measuring instrument 32 moves in the measuring instrument mounting hole 314, it is fixed by a connecting piece connected to the measuring instrument positioning hole 315;

[0040] 2. The end face of the second end of the connecting rod 31 is provided with a measuring instrument positioning hole 315 extending axially and inwardly, and the measuring instrument positioning hole 315 is connected to the measuring instrument mounting hole 314. After the rod portion of the measuring instrument 32 moves in the measuring instrument mounting hole 314, it is fixed by a connecting piece connected to the measuring instrument positioning hole 315.

[0041] As a preferred embodiment, the horizontal axes of the support rod 21 and the connecting rod 31 are in the same vertical plane, so that when the measuring instrument measures the wall thickness difference of the bottle blank, the measuring end of the measuring instrument 32 abuts against the top position of the bottle blank, making the structure of measuring the wall thickness difference of the bottle blank more accurate.

[0042] In a specific implementation of the measuring instrument of this embodiment, one of the measuring methods is as follows:

[0043] S1, sleeve the mouth of the bottle blank onto the sleeve sleeve section 221 of the sleeve 22;

[0044] S2, according to the length of the preform and the measuring position of the wall thickness difference, adjust the axial position of the collar 22 on the support rod 21 left and right, and after adjustment, fix the collar 22 on the support rod 21;

[0045] S3, according to the outer diameter of the preform, the height position of the support rod 21 and the connecting rod 31 on the right side of the fixed block 12 is adjusted up and down, and after the adjustment, the support rod 21 and the connecting rod 31 are fixed on the right side of the fixed block 12;

[0046] S4, adjusting the height position of the measuring instrument 32 in the measuring instrument positioning hole 315 up and down so that the probe of the measuring instrument 32 can contact the outer wall of the bottle blank, and after the adjustment, fixing the measuring instrument 32 in the measuring instrument positioning hole 315 of the connecting rod 31;

[0047] S5, rotating the preform in the circumferential direction, and utilizing the cooperation between the measuring end of the measuring instrument 32 and the supporting positioning member 23 to measure the wall thickness difference data of the preform in the circumferential direction at the position.

[0048] When it is necessary to measure the wall thickness difference at other positions of the preform body along the axial direction, the axial position of the collar 22 on the support rod 21 is adjusted to move the position of the preform along the axial direction. After the adjustment, the collar 22 is fixed on the support rod 21 again, and then S5 is repeated to measure the wall thickness difference at multiple positions of the preform body along the axial direction.

[0049] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the protection scope of the present invention.

Claims

1. A bottle preform wall thickness difference measuring instrument, characterized in that: It includes a fixed seat, a bottle blank supporting tool and a measuring component; the bottle blank supporting tool includes a support rod, one end of the support rod is a fixed end, the fixed end is connected to the fixed seat, after the connection, the support rod extends in the horizontal direction, the outer periphery of the support rod is axially slidably connected with a ring for loading the bottle blank, and the bottle blank can be rotated circumferentially relative to the ring after loading, the other end of the support rod is a free end, and the free end is provided with a supporting positioning piece for supporting the inner wall of the bottle blank; the measuring component is installed on the fixed seat, and the measuring end of the measuring component extends toward the direction of the supporting positioning piece.

2. The bottle blank wall thickness difference measuring instrument according to claim 1 is characterized in that: The fixing seat comprises a base and a fixing block, the fixing block is vertically connected to the base, the fixing end of the support rod is connected to the fixing block, and the measuring assembly is mounted on the fixing block.

3. The bottle blank wall thickness difference measuring instrument according to claim 2, characterized in that: The fixed end of the support rod is provided with a support rod connecting section and a support rod limiting section in sequence along the axial direction, and the outer diameter of the support rod limiting section is larger than the outer diameter of the support rod connecting section, thereby forming a support rod limiting end face; the support rod connecting section is connected to the fixed block, and the support rod limiting end face abuts against the fixed block, thereby limiting the axial position and inclination angle of the support rod.

4. The bottle blank wall thickness difference measuring instrument according to claim 3, characterized in that: The fixing block is provided with a support rod installation groove adapted to the support rod connecting section, and the support rod connecting section is installed in the support rod installation groove and fixed by a connecting piece after installation; Alternatively, the fixing block is provided with a support rod U-shaped groove matched with the support rod connecting section in the vertical direction, and the support rod connecting section can slide in the support rod U-shaped groove in the vertical direction and be fixed by a connecting piece after sliding.

5. The bottle blank wall thickness difference measuring instrument according to claim 2, characterized in that: The measuring assembly includes a connecting rod, a first end of which is connected to the fixed block. After connection, the connecting rod extends in a horizontal direction and is located above the support rod. The second end of the connecting rod is connected to a measuring instrument, and a measuring probe of the measuring instrument extends toward the support positioning member.

6. The bottle blank wall thickness difference measuring instrument according to claim 5, characterized in that: The first end of the connecting rod is provided with a connecting rod connecting section and a connecting rod limiting section in sequence along the axial direction, and the outer diameter of the connecting rod limiting section is larger than the outer diameter of the connecting rod connecting section, thereby forming a connecting rod limiting end face; the connecting rod connecting section is connected to the fixing block, and the connecting rod limiting end face abuts against the fixing block, thereby limiting the axial position and inclination angle of the connecting rod.

7. The bottle blank wall thickness difference measuring instrument according to claim 6, characterized in that: The fixing block is provided with a connecting rod installation groove adapted to the connecting rod connecting section, the connecting rod connecting section is installed in the connecting rod installation groove, and is fixed by a connecting piece after installation; Alternatively, the fixing block is provided with a connecting rod U-shaped groove matched with the connecting rod connecting section in the vertical direction, and the connecting rod connecting section can slide in the connecting rod U-shaped groove in the vertical direction and be fixed by a connecting piece after sliding.

8. The bottle blank wall thickness difference measuring instrument according to claim 5, characterized in that: The second end of the connecting rod is provided with a measuring instrument installation hole which penetrates radially, and the rod portion of the measuring instrument can move in the measuring instrument installation hole and be fixed by a connecting piece after moving.

9. The bottle blank wall thickness difference measuring instrument according to claim 8, characterized in that: The second end of the connecting rod is also provided with a measuring instrument positioning hole connected to the measuring instrument mounting hole. After the rod of the measuring instrument moves in the measuring instrument mounting hole, it is fixed by a connecting piece connected to the measuring instrument positioning hole.

10. The bottle blank wall thickness difference measuring instrument according to claim 5, characterized in that: The horizontal axes of the support rod and the connecting rod are in the same vertical plane.

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