Bottle blank support tooling and bottle blank wall thickness difference measuring instrument

Abstract

A preform supporting tool and a preform wall thickness difference measuring instrument, comprising a supporting rod, one end of the supporting rod being a free end, the free end being provided with a supporting positioning piece for supporting the inner wall of the preform, the supporting positioning piece being protruding from the supporting rod or having a supporting portion protruding from the supporting rod, the outer periphery of the supporting rod being axially slidably connected with a sleeve for loading the preform, the other end of the supporting rod being a connecting end for installation and fixing, when the preform supporting tool is in use, it is only necessary to sleeve the mouth of the preform on the sleeve, and the sleeve is axially slidable on the outer side of the supporting rod, so as to adjust the axial position of the preform, so as to realize the wall thickness difference measurement of multiple positions of the preform body along the axial direction, and ensure the accuracy of the detection result; in addition, the sleeve and the supporting positioning piece can also be used to simultaneously position the preform at the front and rear ends in the axial direction, so as to ensure that the preform remains level during the measurement process, and avoid the measurement error caused by the tilt of the preform.

Description

Technical Field

[0001] The utility model belongs to the technical field of bottle preform measuring tooling, and in particular relates to a bottle preform supporting tooling and a bottle preform 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 and configure it with an appropriate bottle blank support tooling. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a preform supporting tool and a 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 supporting tool comprises a support rod, one end of which is a free end, the free end is provided with a support positioning piece for supporting the inner wall of the bottle blank, the support positioning piece is protruded on the support rod or has a supporting portion protruding from the support rod, the outer periphery of the support rod is axially slidably connected with a ring for loading the bottle blank, and the other end of the support rod is a connecting end for installation and fixation.

[0007] In the utility model, the supporting positioning member is a steel ball, the free end of the supporting rod is provided with a steel ball mounting hole in the radial direction, the steel ball is mounted in the steel ball mounting hole, and the steel ball protrudes above the supporting rod.

[0008] In the present invention, the supporting positioning member is a cushion block, which is coaxially connected to the free end of the support rod. The outer periphery of the cushion block is provided with a positioning tip protruding along the circumferential direction, and the positioning tip protrudes above the support rod.

[0009] In the utility model, the supporting positioning member is a steel ball stud, the free end of the support rod is radially provided with an inner threaded hole of the support rod, the stud part of the steel ball stud is connected to the inner threaded hole of the support rod, and the steel ball part of the steel ball stud protrudes above the support rod.

[0010] In the utility model, the inner hole of the collar is loosely matched with the outer periphery of the support rod, so that the collar can slide axially on the outer periphery of the support rod.

[0011] In the utility model, the collar is sequentially arranged into a collar connecting section and a collar sleeve connecting section along the axial direction; the collar sleeve connecting section is used to load the mouth of the bottle blank, and the outer diameter of the collar sleeve connecting section is clearance-matched with the inner diameter of the mouth of the bottle blank, so that the bottle blank can rotate in the circumferential direction; the outer diameter of the collar connecting section is larger than the outer diameter of the collar sleeve connecting section, thereby forming a collar limiting end face that limits the axial position of the bottle blank.

[0012] In the utility model, the collar connecting section is provided with a collar connecting hole which penetrates radially, and the outer periphery of the support rod is provided with a plurality of support rod connecting holes in sequence along the axial direction. The support rod connecting holes are arranged radially and matched with the collar connecting holes, and the collar after sliding adjustment is fixed on the support rod through the cooperation of the connecting piece with the collar connecting hole and the support rod connecting hole.

[0013] In the utility model, the collar connecting section is also provided with a collar internal threaded hole penetrating in the radial direction, and the collar internal threaded hole and the collar connecting hole are staggered in the circumferential direction; the collar internal threaded hole located above the inner hole of the collar is connected with a threaded top rod, and the collar internal threaded hole located below the inner hole of the collar is connected with a threaded bottom rod.

[0014] In the utility model, the connecting 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. 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 that limits the axial position and inclination angle of the support rod.

[0015] Based on the above-mentioned bottle blank supporting tooling, the utility model also provides a bottle blank wall thickness difference measuring instrument, including a fixed seat, a measuring assembly and the above-mentioned bottle blank supporting tooling, the bottle blank supporting tooling and the measuring assembly are both installed on the fixed seat, wherein: the connecting end of the support rod of the bottle blank supporting tooling is connected to the fixed seat, and after the connection, the support rod extends in a horizontal direction, and the measuring end of the measuring assembly extends toward the direction of the supporting positioning member.

[0016] The beneficial effects of the utility model are as follows: when the bottle blank supporting tool is in use, it is only necessary to sleeve the mouth of the bottle blank on the sleeve ring, and the sleeve ring slides axially on the outer side of the support rod, so as to adjust the axial position of the bottle blank, so as to realize the wall thickness difference measurement of multiple positions of the bottle blank body along the axial direction, and ensure the accuracy of the detection result; in addition, the sleeve ring and the supporting positioning member can also be used to simultaneously position the bottle blank at the front and rear ends of the axial direction, so as to ensure that the bottle blank remains horizontal during the measurement process, and avoid the measurement error caused by the tilt of the bottle blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure when the supporting positioning member of the preform supporting tooling is a steel ball;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the middle support rod;

[0019] Figure 3 It is a schematic diagram of the overall structure when the supporting and positioning member of the preform supporting tooling is a cushion block;

[0020] Figure 4 It is a schematic diagram of the overall structure when the supporting and positioning parts of the preform supporting tooling are steel ball studs;

[0021] Figure 5 It is a structural schematic diagram of a steel ball stud;

[0022] Figure 6 for Figure 1 , Figure 3 or Figure 4 Schematic diagram of the structure of the middle ring;

[0023] Figure 7 A schematic diagram of the change of the preform from an inclined state to a horizontal state;

[0024] Figure 8 for Figure 7 Schematic diagram of the structure of the middle ring;

[0025] Fig. 9 Schematic diagram of the structure of the bottle blank wall thickness difference measuring instrument 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 8 As shown, this embodiment discloses a bottle blank support tool, including a support rod 1, one end of the support rod 1 is a free end, the free end is provided with a support positioning piece for supporting the inner wall of the bottle blank, the support positioning piece is convexly arranged on the support rod 1 or has a support portion protruding from the support rod 1, the outer periphery of the support rod 1 is axially slidably connected with a collar 2 for loading the bottle blank, and the other end of the support rod 1 is a connection end for installation and fixing. When the bottle blank support tool of this embodiment is used, it is only necessary to sleeve the mouth of the bottle blank on the collar 2, and the collar 2 slides axially on the outer side of the support rod 1, so as to adjust the axial position of the bottle blank, so as to realize the wall thickness difference measurement of multiple positions of the bottle blank body along the axial direction, and ensure the accuracy of the detection result; in addition, the collar 2 and the support positioning piece can also be used to simultaneously position the bottle blank at the front and rear ends of the axial direction, so as to ensure that the bottle blank remains horizontal during the measurement process, and avoid the measurement error caused by the tilt of the bottle blank.

[0030] In addition, the supporting positioning member can adopt different structural styles according to different usage requirements and application scenarios. In this embodiment, supporting positioning members with the following three structural styles are provided.

[0031] 1. If Figure 1 and Figure 2As shown, the support positioning member is a steel ball 4, and the free end of the support rod 1 is provided with a steel ball mounting hole 14 in the radial direction. The steel ball 4 is mounted in the steel ball mounting hole 14, and the steel ball 4 protrudes above the support rod 1. The portion of the steel ball 4 protruding above the support rod 1 serves as a supporting portion. Preferably, in order to make the preform support tooling have better support for the preform and ensure the accuracy of the detection result, after the support rod 1 is installed and fixed by the connecting end, the steel ball mounting hole 14 is arranged in the vertical direction. Under this structural style, it is necessary to determine the rod diameter of the support rod 1 and the height of the support positioning member according to the radius difference between the mouth of the preform and the body of the preform at the two supporting positions of the preform. Specifically, for preforms with different radius differences at the supporting positions, it is necessary to use corresponding support rods 1 and support positioning members so that the rod diameter of the support rod 1 and the height of the support positioning member meet the radius difference of the supporting position of the preform.

[0032] 2. If Figure 3 As shown, the support positioning member is a cushion block 5, which is coaxially connected to the free end of the support rod 1. The outer periphery of the cushion block 5 is provided with a positioning tip 51 protruding along the circumferential direction, and the positioning tip 51 protrudes above the support rod 1, and the positioning tip 51 serves as a supporting portion. In this structural style, the cushion block 5 and the support rod 1 are detachably connected, and different cushion blocks 5 can be configured for the support rod 1 to adapt to bottle blanks with different radius differences in the support position. Only different cushion blocks 5 need to be replaced, and the support rod 1 does not need to be replaced.

[0033] 3. If Figure 4 As shown, the supporting positioning member is a steel ball stud 6, and the free end of the support rod 1 is provided with a support rod internal thread hole 15 in the radial direction, the stud part 61 of the steel ball stud 6 is connected to the support rod internal thread hole 15, and the steel ball part 62 of the steel ball stud 6 is exposed above the support rod 1. The steel ball part 62 serves as a supporting part. Preferably, after the support rod 1 is installed and fixed by the connecting end, the support rod internal thread hole 15 is arranged in the vertical direction, the steel ball part 62 is located at the top of the steel ball stud 6, and the bottom of the steel ball stud 6 is provided with an adjustment hole 63. The steel ball stud 6 can be screwed by the adjusting tool in conjunction with the adjustment hole 63 to adjust the position of the steel ball stud 6, so that the steel ball stud 6 moves axially along the support rod internal thread hole 15, thereby adjusting the support height of the steel ball stud 6 to the bottle blank. Under this structural style, for bottle blanks with different radius differences in the support position, it is only necessary to adjust the position of the steel ball stud 6, without replacing any parts, and it has good versatility.

[0034] In this embodiment, the inner hole of the collar 2 is loosely matched with the outer periphery of the support rod 1, so that the collar 2 can slide axially on the outer periphery of the support rod 1, so that the preform can be measured at multiple positions along the axial direction.

[0035] In the utility model, the collar 2 is sequentially arranged along the axial direction into a collar connecting section 21 and a collar sleeve section 22; the collar sleeve section 22 is used to load the mouth of the preform, and the outer diameter of the collar sleeve section 22 is clearance-matched with the inner diameter of the mouth of the preform, so that the preform can rotate in the circumferential direction; the outer diameter of the collar connecting section 21 is larger than the outer diameter of the collar sleeve section 22, thereby forming a collar limiting end face 23 that limits the axial position of the preform. The bottle blank is axially positioned when loaded and positioned by the collar limiting end face 23. When the bottle blank is connected to the collar 2, the mouth of the bottle blank is sleeved on the outer side of the collar sleeve section 22. The end face of the mouth of the bottle blank contacts with the collar limiting end face 23 to position the bottle blank axially. Moreover, whether the bottle blank is tilted can be observed by the degree of fit between the end face of the mouth of the bottle blank and the collar limiting end face 23. When the end face of the mouth of the bottle blank is completely fitted with the collar limiting end face 23, the bottle blank is in a horizontal state, and the result of the detection of the wall thickness difference of the bottle blank is relatively accurate. When the end face of the mouth of the bottle blank is only partially fitted with the collar limiting end face 23, the bottle blank is in a tilted state, and the result of the detection of the wall thickness difference of the bottle blank has a certain degree of error.

[0036] In this embodiment, the ring connecting section 21 is provided with a ring connecting hole 211 which penetrates radially, and the outer periphery of the support rod 1 is provided with a plurality of support rod connecting holes 16 in sequence along the axial direction. The support rod connecting holes 16 are arranged radially and are adapted to the ring connecting hole 211. The ring 2 after sliding adjustment is fixed on the support rod 1 through the cooperation between the connecting piece and the ring connecting hole 211 and the support rod connecting hole 16.

[0037] In addition, when the outer diameter of the sleeve sleeve section 22, the height of the support positioning member and the radius difference of the bottle blank support position are not matched, the bottle blank will tilt, causing errors in the detection results. In view of this problem, the sleeve 2 is set to the following structure: the inner diameter of the sleeve 2 is larger than the rod diameter of the support rod 1, and there is a certain adjustment gap between the two; the sleeve connection section 21 is also provided with a sleeve internal threaded hole 24 that penetrates in the radial direction, and the sleeve internal threaded hole 24 and the sleeve connection hole 211 are staggered in the circumferential direction; after the connecting end of the support rod 1 is connected to the fixing seat 3, the sleeve internal threaded hole 24 is arranged in the vertical direction; the sleeve internal threaded hole 24 located above the inner hole of the sleeve 2 is connected to the threaded top rod 7, and the sleeve internal threaded hole 24 located below the inner hole of the sleeve 2 is connected to the threaded bottom rod 8. When the bottom of the bottle blank tilts downward, the height position of the collar 2 needs to be adjusted downward. Specifically, the threaded top rod 7 and the threaded bottom rod 8 can be screwed to move both the threaded top rod 7 and the threaded bottom rod 8 upward, so that the bottle blank is restored to a horizontal state to ensure the accuracy of the detection result.

[0038] In this embodiment, the connecting end of the support rod 1 is provided with a support rod connecting section 11 and a support rod limiting section 12 in sequence along the axial direction, and the outer diameter of the support rod limiting section 12 is larger than the outer diameter of the support rod connecting section 11, thereby forming a support rod limiting end face 13 that limits the axial position and tilt angle of the support rod 1. The support rod 1 is kept horizontally connected by the contact and limiting between the support rod limiting end face 13 and the side surface of the fixing seat 3.

[0039] Based on the above disclosed preform support tooling, this embodiment also discloses a preform wall thickness difference measuring instrument, such as Fig. 9 As shown, it includes a fixing seat 3, a measuring component 9 and the above-mentioned bottle blank supporting tooling, the bottle blank supporting tooling and the measuring component 9 are both installed on the fixing seat 3, wherein: the connecting end of the support rod 1 of the bottle blank supporting tooling is connected to the fixing seat 3, and after the connection, the support rod 1 extends in the horizontal direction, and the measuring end of the measuring component 9 extends toward the direction of the supporting positioning member.

[0040] 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 preform support tool, characterized in that: It includes a support rod, one end of which is a free end, and the free end is provided with a support positioning piece for supporting the inner wall of the bottle blank, the support positioning piece is protruded on the support rod or has a supporting portion protruding from the support rod, the outer periphery of the support rod is axially slidably connected with a ring for loading the bottle blank, and the other end of the support rod is a connecting end for installation and fixation.

2. A preform support tool according to claim 1, characterized in that: The supporting positioning member is a steel ball. The free end of the supporting rod is provided with a steel ball mounting hole in the radial direction. The steel ball is mounted in the steel ball mounting hole, and the steel ball protrudes above the supporting rod.

3. A preform support tool according to claim 1, characterized in that: The support positioning member is a cushion block, which is coaxially connected to the free end of the support rod. The outer periphery of the cushion block is provided with a positioning tip protruding along the circumferential direction, and the positioning tip protrudes above the support rod.

4. The preform supporting tool according to claim 1, characterized in that: The supporting positioning member is a steel ball stud, the free end of the support rod is radially provided with a support rod internal threaded hole, the stud part of the steel ball stud is connected to the support rod internal threaded hole, and the steel ball part of the steel ball stud protrudes above the support rod.

5. The preform supporting tool according to claim 1, characterized in that: The inner hole of the sleeve ring is loosely matched with the outer periphery of the support rod, so that the sleeve ring can slide axially on the outer periphery of the support rod.

6. A preform supporting tool according to claim 5, characterized in that: The collar is sequentially arranged into a collar connecting section and a collar sleeve connecting section along the axial direction; the collar sleeve connecting section is used to load the mouth of the bottle blank, and the outer diameter of the collar sleeve connecting section is clearance-matched with the inner diameter of the mouth of the bottle blank, so that the bottle blank can rotate in the circumferential direction; the outer diameter of the collar connecting section is larger than the outer diameter of the collar sleeve connecting section, thereby forming a collar limiting end face for limiting the axial position of the bottle blank.

7. A preform supporting tool according to claim 6, characterized in that: The collar connecting section is provided with a collar connecting hole which penetrates radially, and the outer periphery of the support rod is provided with a plurality of support rod connecting holes in sequence along the axial direction. The support rod connecting holes are arranged radially and matched with the collar connecting holes, and the collar after sliding adjustment is fixed on the support rod through the cooperation of the connecting piece with the collar connecting hole and the support rod connecting hole.

8. The preform supporting tool according to claim 7, characterized in that: The collar connecting section is also provided with a collar internal threaded hole penetrating in the radial direction, and the collar internal threaded hole and the collar connecting hole are staggered in the circumferential direction; the collar internal threaded hole located above the inner hole of the collar is connected with a threaded top rod, and the collar internal threaded hole located below the inner hole of the collar is connected with a threaded bottom rod.

9. The preform supporting tool according to claim 1, characterized in that: The connecting 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. 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 that limits the axial position and inclination angle of the support rod.

10. A bottle blank wall thickness difference measuring instrument, characterized in that: It comprises a fixing seat, a measuring assembly and the preform supporting tooling according to any one of claims 1 to 9, wherein the preform supporting tooling and the measuring assembly are both mounted on the fixing seat, wherein: the connecting end of the supporting rod of the preform supporting tooling is connected to the fixing seat, and after the connection, the supporting rod extends in a horizontal direction, and the measuring end of the measuring assembly extends toward the supporting positioning member.

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