PET bottle preform thickness measuring equipment

Abstract

According to the PET bottle preform thickness measuring equipment provided by the utility model, the driving cylinder drives the correcting rod and the connecting rod to move close to the PET bottle preform to be detected through the driving block, so that the connecting rod is inserted into the PET bottle preform to be detected, and the rolling bead is in rolling butt joint with the inner wall of the top of the PET bottle preform to be detected. The detection end of the electric dial indicator is released, so that the detection end of the electric dial indicator abuts against the outer wall of the top of the PET bottle preform to be detected. It needs to be explained that the thickness of the to-be-detected PET bottle preform can be obtained by calculating the difference value between the detection value when the detection end of the electric dial indicator abuts against the outer wall of the top of the to-be-detected PET bottle preform and the detection value when the detection end of the electric dial indicator abuts against the rolling bead, and the rotating motor drives the clamping air cylinder to rotate through the rotating disc. Therefore, the to-be-detected PET bottle preform is driven to rotate, and the thicknesses of different parts of the to-be-detected PET bottle preform are measured. The PET bottle preform thickness measuring equipment is simple and exquisite, low in cost and high in working stability.

Description

Technical Field

[0001] The utility model relates to the field of PET bottle embryo thickness measurement, in particular to PET bottle embryo thickness measurement equipment. Background Art

[0002] PET plastic bottles are not only widely used to package carbonated beverages, drinking water, juice, enzymes and tea beverages, etc., but are also widely used in many fields such as food, chemical industry, and pharmaceutical packaging. PET plastics are widely used in the packaging field. Both packaging films and coils use PET plastics. PET preforms are typical injection molding products. They are easy to transport, mostly made of plastic, have uniform texture, good insulation, and are plastic bottles. The processing process of PET preforms is to fill the mold with raw materials at a certain temperature and pressure, and process them into preforms with a certain thickness and height corresponding to the mold under the processing of the injection molding machine. PET bottles have strong applicability and are widely used in daily necessities, daily chemical packaging and other fields. PET preforms are processed again by blow molding to form plastic bottles, including bottles used for packaging of cosmetics, medicines, health care, beverages, mineral water, reagents, etc. This bottle making method is called a two-step method, that is, a method of forming a preform by injection molding and then forming a PET plastic bottle by blow molding.

[0003] However, after the PET bottle blank is processed, the thickness of the PET bottle blank needs to be measured. The traditional bottle blank thickness measuring equipment, such as the patent application number CN202223271998.8, the invention name of which is "A kind of auxiliary equipment for detecting the wall thickness of polymer plastic bottle blank", is complex and costly. Utility Model Content

[0004] Based on this, it is necessary to provide a PET preform thickness measuring device to address the technical problems of complex equipment and high cost of traditional preform thickness measuring devices.

[0005] A PET preform thickness measuring device, the PET preform thickness measuring device comprising: a receiving bottom plate, a receiving mechanism and a measuring mechanism;

[0006] The receiving mechanism comprises a manual screw lifter, a Z-shaped receiving plate, a receiving block and a rotating assembly; the manual screw lifter is connected to the receiving bottom plate, and the driving end of the manual screw lifter is drivingly connected to one end of the Z-shaped receiving plate; the receiving block is arranged at one end of the Z-shaped receiving plate away from the manual screw lifter; an arc-shaped receiving groove is provided on a side of the receiving block facing away from the Z-shaped receiving plate; the rotating assembly comprises a rotating motor, a rotating disk and a clamping cylinder; the rotating motor is connected to the outer wall of the bent portion of the Z-shaped receiving plate, and the rotating motor is drivingly connected to the middle area of ​​the rotating disk; the clamping cylinder is connected to a side of the rotating disk facing away from the rotating motor;

[0007] The measuring mechanism includes a receiving platform, a connecting platform, a driving cylinder, a driving block, a correction rod, a rolling ball, a connecting rod and an electric micrometer; the receiving platform is connected to the receiving base plate, and a sliding groove is provided on a side of the receiving platform away from the receiving base plate; the driving cylinder is connected to the receiving base plate through the connecting platform; the driving block is adapted to the sliding groove, and the driving block is partially inserted in the sliding groove and slidably connected to the receiving base plate; the correction rod and the connecting rod are parallel to each other and arranged up and down, and the correction rod and the connecting rod are perpendicular to the driving block connection; the connecting rod is arranged close to the receiving platform; a hemispherical rotating groove is provided on one end of the connecting rod away from the driving block and facing the correction rod, the rolling ball is adapted to the hemispherical rotating groove, the rolling ball is inserted in the hemispherical rotating groove and is rotatably connected to the correction rod; the electric micrometer is connected to one end of the correction rod away from the driving block; the detection end of the electric micrometer abuts against the rolling ball; the driving cylinder drives the correction rod and the connecting rod to move close to or away from the clamping cylinder through the driving block.

[0008] In one embodiment, the receiving block and the Z-shaped receiving plate are integrally formed.

[0009] In one embodiment, the rotating motor is a servo motor.

[0010] In one embodiment, the rotating motor is a stepping motor.

[0011] In one embodiment, the receiving block is a rectangular parallelepiped structure.

[0012] In one embodiment, the connecting platform and the receiving bottom plate are integrally formed.

[0013] In one of the embodiments, the receiving platform and the receiving bottom plate are integrally formed.

[0014] In one embodiment, the driving block is a rectangular parallelepiped structure.

[0015] In one embodiment, the connecting platform is a rectangular parallelepiped structure.

[0016] In one embodiment, the receiving platform is a rectangular parallelepiped structure.

[0017] During operation, the PET preform thickness measuring device is used to place the PET preform to be tested in the arc-shaped receiving groove and receive it on the receiving block. The clamping cylinder clamps and fixes the sealed end of the PET preform to be tested. The height of the Z-shaped receiving plate is adjusted by the manual screw lifter, thereby adjusting the height of the PET preform to be tested to match the height of the rolling ball, so that the inner wall of the top of the PET preform to be tested can abut against the rolling ball. The detection end of the electric micrometer is moved so that the detection end of the electric micrometer is away from the rolling ball. The driving cylinder drives the correction rod and the connecting rod to move close to the PET preform to be tested through the driving block, so that the connecting rod is inserted into the PET preform to be tested, so that the rolling ball rolls and abuts against the inner wall of the top of the PET preform to be tested. The detection end of the electric micrometer is released so that the detection end of the electric micrometer abuts against the outer wall of the top of the PET preform to be tested. It should be noted that the thickness of the PET preform to be tested can be obtained by calculating the difference between the detection value when the detection end of the electric micrometer abuts against the outer wall of the top of the PET preform to be tested and the detection value when the detection end of the electric micrometer abuts against the rolling ball, and the rotating motor drives the clamping cylinder to rotate through the rotating disk, thereby driving the PET preform to be tested to rotate, so as to measure the thickness of different parts of the PET preform to be tested. The above-mentioned PET preform thickness measuring device is concise and exquisite, low cost and high working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a PET preform thickness measuring device in one embodiment;

[0019] Figure 2 It is a structural schematic diagram of a receiving mechanism in one embodiment;

[0020] Figure 3 FIG. 4 is a schematic diagram of the structure of a measuring mechanism in one embodiment. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth so as to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below. In the description of the utility model, it is necessary to understand that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0026] Please also read Figures 1 to 3 The utility model provides a PET preform thickness measuring device 10, which includes: a receiving bottom plate 100, a receiving mechanism 200 and a measuring mechanism 300.

[0027] The receiving mechanism 200 includes a manual screw lifter 210, a Z-shaped receiving plate 220, a receiving block 230 and a rotating assembly 240. The manual screw lifter 210 is connected to the receiving base plate 100, and the driving end of the manual screw lifter 210 is drivingly connected to one end of the Z-shaped receiving plate 220. The receiving block 230 is arranged at one end of the Z-shaped receiving plate 220 away from the manual screw lifter 210. In the present embodiment, the receiving block 230 and the Z-shaped receiving plate 220 are integrally formed. An arc-shaped receiving groove 201 is provided on one side of the receiving block 230 facing away from the Z-shaped receiving plate 220. In the present embodiment, the receiving block 230 is a rectangular parallelepiped structure. The rotating assembly 240 includes a rotating motor 241, a rotating disk 242 and a clamping cylinder 243. The rotating motor 241 is connected to the outer wall of the bent portion of the Z-shaped receiving plate 220, and the rotating motor 241 is drivingly connected to the middle area of ​​the rotating disk 242. In this embodiment, the rotating motor 241 is a servo motor. In another embodiment, the rotating motor 241 is a stepping servo motor. The clamping cylinder 243 is connected to the side of the rotating disk 242 facing away from the rotating motor 241.

[0028] The measuring mechanism 300 includes a receiving platform 310, a connecting platform 320, a driving cylinder 330, a driving block 340, a correction rod 350, a rolling ball 360, a connecting rod 370 and an electric micrometer 380. The receiving platform 310 is connected to the receiving base plate 100. In the present embodiment, the receiving platform 310 is a rectangular parallelepiped structure, and the receiving platform 310 and the receiving base plate 100 are integrally formed. A sliding groove 301 is provided on the side of the receiving platform 310 away from the receiving base plate 100. The driving cylinder 330 is connected to the receiving base plate 100 through the connecting platform 320. In the present embodiment, the connecting platform 320 and the receiving base plate 100 are integrally formed. The connecting platform 320 is a rectangular parallelepiped structure. The driving block 340 is adapted to the sliding groove 301, and the driving block 340 is partially inserted in the sliding groove 301 and is slidably connected to the receiving base plate 100. In this embodiment, the driving block 340 is a rectangular parallelepiped structure. The correction rod 350 and the connecting rod 370 are parallel to each other and arranged up and down, and the correction rod 350 and the connecting rod 370 are vertically connected to the driving block 340. The connecting rod 370 is arranged near the receiving platform 310. The connecting rod 370 is provided with a hemispherical rotating groove 302 on one end away from the driving block 340 and facing the correction rod 350, and the rolling ball 360 is adapted to the hemispherical rotating groove 302. The rolling ball 360 is inserted in the hemispherical rotating groove 302 and is rotatably connected to the correction rod 350. The electric micrometer 380 is connected to the end of the correction rod 350 away from the driving block 340. The detection end of the electric micrometer 380 abuts against the rolling ball 360. The driving cylinder 330 drives the correction rod 350 and the connecting rod 370 to move close to or away from the clamping cylinder 243 through the driving block 340.

[0029] During operation, the PET preform thickness measuring device 10 places the PET preform to be tested in the arc receiving groove 201 and receives it on the receiving block 230. The clamping cylinder 243 clamps and fixes the sealed end of the PET preform to be tested. The height of the Z-shaped receiving plate 220 is adjusted by the manual screw lifter 210, thereby adjusting the height of the PET preform to be tested to match the height of the rolling ball 360, so that the inner wall of the top of the PET preform to be tested can abut against the rolling ball 360. The detection end of the electric micrometer 380 is moved so that the detection end of the electric micrometer 380 is away from the rolling ball 360. The driving cylinder 330 drives the correction rod 350 and the connecting rod 370 to move close to the PET preform to be tested through the driving block 340, so that the connecting rod 370 is inserted into the PET preform to be tested, so that the rolling ball 360 rolls and abuts against the inner wall of the top of the PET preform to be tested. Release the detection end of the electric micrometer 380, so that the detection end of the electric micrometer 380 abuts against the outer wall of the top of the PET preform to be detected. It should be noted that the thickness of the PET preform to be detected can be obtained by calculating the difference between the detection value when the detection end of the electric micrometer 380 abuts against the outer wall of the top of the PET preform to be detected and the detection value when the detection end of the electric micrometer 380 abuts against the rolling ball 360. The rotating motor 241 drives the clamping cylinder 243 to rotate through the rotating disk 242, thereby driving the PET preform to be detected to rotate, so as to measure the thickness of different parts of the PET preform to be detected. The above-mentioned PET preform thickness measuring device 10 is concise and exquisite, low cost, and high working stability.

[0030] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A PET preform thickness measuring device, characterized in that: include: A receiving base plate, a receiving mechanism and a measuring mechanism; The receiving mechanism comprises a manual screw lifter, a Z-shaped receiving plate, a receiving block and a rotating assembly; the manual screw lifter is connected to the receiving bottom plate, and the driving end of the manual screw lifter is drivingly connected to one end of the Z-shaped receiving plate; the receiving block is arranged at one end of the Z-shaped receiving plate away from the manual screw lifter; an arc-shaped receiving groove is provided on a side of the receiving block facing away from the Z-shaped receiving plate; the rotating assembly comprises a rotating motor, a rotating disk and a clamping cylinder; the rotating motor is connected to the outer wall of the bent portion of the Z-shaped receiving plate, and the rotating motor is drivingly connected to the middle area of ​​the rotating disk; the clamping cylinder is connected to a side of the rotating disk facing away from the rotating motor; The measuring mechanism includes a receiving platform, a connecting platform, a driving cylinder, a driving block, a correction rod, a rolling ball, a connecting rod and an electric micrometer; the receiving platform is connected to the receiving base plate, and a sliding groove is provided on a side of the receiving platform away from the receiving base plate; the driving cylinder is connected to the receiving base plate through the connecting platform; the driving block is adapted to the sliding groove, and the driving block is partially inserted in the sliding groove and slidably connected to the receiving base plate; the correction rod and the connecting rod are parallel to each other and arranged up and down, and the correction rod and the connecting rod are perpendicular to the driving block connection; the connecting rod is arranged close to the receiving platform; a hemispherical rotating groove is provided on one end of the connecting rod away from the driving block and facing the correction rod, the rolling ball is adapted to the hemispherical rotating groove, the rolling ball is inserted in the hemispherical rotating groove and is rotatably connected to the correction rod; the electric micrometer is connected to one end of the correction rod away from the driving block; the detection end of the electric micrometer abuts against the rolling ball; the driving cylinder drives the correction rod and the connecting rod to move close to or away from the clamping cylinder through the driving block.

2. The PET preform thickness measuring device according to claim 1, characterized in that: The receiving block and the Z-shaped receiving plate are integrally formed.

3. The PET preform thickness measuring device according to claim 1, characterized in that: The rotating motor is a servo motor.

4. The PET preform thickness measuring device according to claim 1, characterized in that: The rotating motor is a stepping motor.

5. The PET preform thickness measuring device according to claim 1, characterized in that: The receiving block is a rectangular parallelepiped structure.

6. The PET preform thickness measuring device according to claim 1, characterized in that: The connecting platform and the receiving bottom plate are integrally formed.

7. The PET preform thickness measuring device according to claim 1, characterized in that: The receiving platform and the receiving bottom plate are integrally formed.

8. The PET preform thickness measuring device according to claim 1, characterized in that: The driving block is a rectangular parallelepiped structure.

9. The PET preform thickness measuring device according to claim 1, characterized in that: The connecting platform is a rectangular parallelepiped structure.

10. The PET preform thickness measuring device according to claim 1, characterized in that: The receiving platform is a rectangular parallelepiped structure.

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