A preform detection and material return mechanism for plastic bottle processing

Abstract

The application discloses a bottle blank detection and material returning mechanism for plastic bottle processing and relates to the technical field of bottle blowing machines.The bottle blank detection and material returning mechanism comprises a bottle blank track mechanism, a fixed mounting seat, a detection electric eye and a material returning assembly.The bottle blank track mechanism is uniformly matched with a roller guide base, and the bottom of the roller guide base is matched with a bottle blank.The fixed mounting seat is fixedly installed with the material returning assembly below the bottle blank, and the fixed mounting seat is also fixedly installed with the detection electric eye on the front side of the material returning assembly.The detection electric eye and the material returning assembly are both electrically connected with a control panel.The material returning assembly comprises a cylinder and a material returning plate, the telescopic end of the cylinder is fixedly installed with the material returning plate, the top of the material returning plate is provided with a giving-way slot, and the material returning plate is provided with material returning pressing plates on the two sides of the giving-way slot.The bottle blank in an abnormal state can be removed in and out through the detection electric eye and the material returning assembly, so that the normal operation of the equipment is not affected, the lamp tube and the heating system in the equipment are protected, and the bottle blank can smoothly complete the heating process.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of bottle blowing machines, and particularly relates to a bottle blank detection and material returning mechanism for plastic bottle processing. BACKGROUND

[0002] In plastic bottle processing and production, a bottle blank is usually inserted into an insertion blank head and then enters a heating system in a column for heating. In order to achieve higher heating efficiency, the distance between the lamp tube in the heating system and the column of bottle blanks is very close. In actual production, due to the mismatch between the actual size of the bottle blank and the processing precision of the insertion blank head, or the installation deviation of the insertion blank station, the insertion blank head cannot be completely inserted into the bottle blank. When the bottle blank rotates in the heating system, the lamp tube will be damaged, causing uncontrollable downtime and low production efficiency, which cannot meet the needs of long-term stable production of enterprises.

[0003] In view of the above-mentioned problem that the installation deviation of the bottle blank causes the lamp tube and the heating system to malfunction, the application designs a bottle blank detection and material returning mechanism for plastic bottle processing. SUMMARY

[0004] The application aims to provide a bottle blank detection and material returning mechanism for plastic bottle processing. Through the action of the detection electric eye and the material returning assembly, the bottle blank in an abnormal state can be removed, so as to avoid affecting the normal operation of the equipment and even causing downtime failure. The mechanism has the advantages of protecting the lamp tube and the heating system in the equipment and ensuring the smooth completion of the heating process of the bottle blank, and solves the above-mentioned problem that the installation deviation of the bottle blank causes the lamp tube and the heating system to malfunction.

[0005] To solve the above technical problems, the application is implemented through the following technical scheme:

[0006] The present invention provides a bottle preform detection and return mechanism for processing plastic bottles, comprising a bottle preform track mechanism and a fixed mounting seat, a detection electric eye, and a return assembly; a plurality of roller guide seats are evenly matched on one relative inner side surface of the bottle preform track mechanism, a heating head is plugged and matched inside the roller guide seat, and a bottle preform is matched at the bottom of the heating head, and the fixed mounting seat is located below the bottle preform track mechanism and the bottle preform; the fixed mounting seat is fixedly mounted with a return assembly under the bottle preform, and the fixed mounting seat is also fixedly mounted with a detection electric eye on the front side of the return assembly, and the detection electric eye and the return assembly are electrically connected to a control panel; the return assembly comprises a cylinder and a return plate, the telescopic end of the cylinder is fixedly mounted with a return plate on the top of the return plate, and a clearance groove is provided on the top of the return plate, and return pressure plates are provided on both sides of the clearance groove; the inner wall of the clearance groove is clearance-matched with the top of the bottle preform; in actual working scenarios, after the bottle preform is inserted by the heating head, Its external manifestation is in three forms: form one: the heating head is fully inserted into the bottle preform; form two: the bottle preform is not fully inserted but not tilted; form three: the bottle preform is not fully inserted and is tilted. Among them, form three is the main factor that breaks the lamp tube in the heating system, so the material must be rejected. Form two is less likely to break the lamp tube, but it needs to be transferred to the robot arm after heating, which will cause handover problems and may randomly fall during operation, so it also needs to be rejected. The bottle preforms in forms two and three are lower than the bottom of the bottle preform in form one. In this case, a detection electric eye is installed slightly lower than the bottom of the bottle preform in form one, making the bottle preforms in forms two and three easily detected by the detection electric eye. When the detection electric eye detects, it will output a signal to the control panel. The control panel then controls the cylinder to move up and down, and the bottle preforms in forms two and three are rejected by the stripper plate.

[0007] As a preferred technical solution of the present invention, the fixed mounting seat is fixedly installed with a limiting slide groove on one side of the stripper plate, and the inner side wall of the limiting slide groove is slidably matched with one side of the stripper plate; the limiting slide groove is used to control the lifting and lowering stroke range of the cylinder and the bottom of the stripper plate, to prevent the bottom of the stripper plate from being too high and obstructing the passage of the bottom of the bottle preform, and to prevent the top of the stripper plate from being too low and failing to smoothly complete the removal operation of the bottle preforms in the second and third shapes.

[0008] As a preferred technical solution of the present invention, an installation groove is provided on the bottom wall of the limiting slide groove, and a photoelectric sensor is fixedly installed in the installation groove, and the photoelectric sensor is electrically connected to a control panel; the photoelectric sensor will collect data information on the lifting height of the cylinder and the stripping plate during the rejection operation, and the control panel can determine whether the rejection operation is completed based on the data information on the lifting height.

[0009] As a preferred technical solution of the present invention, the fixed mounting seat is fixedly mounted with a material receiving cylinder below the top of the stripping plate.

[0010] As a preferred technical solution of the present invention, the fixed mounting seat is further fixedly mounted with a detection electric eye A on the rear side of the material stripping assembly for detecting whether the material stripping is completed; when the detection electric eye detects the bottle preforms in form two and form three, the control panel will control the cylinder and the material stripping plate to perform the material stripping operation after a corresponding delay according to the conveying speed of the roller guide seat; and the detection electric eye A will also detect that the bottle preform under the roller guide seat here is rejected after a corresponding delay, so as to verify that the material stripping assembly has accurately completed the material stripping operation.

[0011] As a preferred technical solution of the present invention, the ratio of the horizontal distance between the bottom of the stripper plate and the stripper pressing plate to the horizontal distance between two adjacent bottle preforms is in a range of 1-3; when the stripper pressing plate presses the bottle preform downward to cause the bottle preform to fall, the bottom of the stripper plate cannot cause an obstruction, so the bottom of the stripper plate cannot be located directly below the stripper pressing plate, but there is a horizontal distance between the bottom of the stripper plate and the horizontal distance between the two adjacent bottle preforms is not less than the horizontal distance between the two adjacent bottle preforms.

[0012] The present invention has the following beneficial effects:

[0013] 1. The present invention uses the detection of electric eyes and the rejection assembly to remove preforms in abnormal conditions to avoid affecting the normal operation of the equipment. It protects the lamps and heating system in the equipment, ensuring that the preforms complete the heating process smoothly. It is also easy to install and use, low in cost, and easy to modify existing equipment.

[0014] 2. The present invention is designed with the function of detecting electric eyes and material return components, which not only reduces the abnormal loss of lamp tubes and reduces costs, but also reduces downtime for maintenance and ensures the long-term stable operation of the equipment.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a structural schematic diagram of a preform detection and material return mechanism for plastic bottle processing according to the present invention in Example 1;

[0018] Figure 2 This is a structural front view of a preform detection and material return mechanism for plastic bottle processing according to the present invention in Example 1;

[0019] Figure 3 This is a structural side view of a preform detection and return mechanism for plastic bottle processing according to the present invention in Example 1;

[0020] Figure 4 This is a structural front view of a preform detection and return mechanism for plastic bottle processing according to the present invention in Example 2;

[0021] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1-Preform track mechanism, 2-Fixed mounting base, 3-Detection electric eye, 4-Return assembly, 5-Preform, 6-Receiving barrel, 101-Roller guide, 102-Warming head, 201-Limiting slide, 202-Photoelectric sensor, 301-Detection electric eye A, 401-Cylinder, 402-Return plate, 403-Give way slot, 404-Return pressure plate. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1-3As shown, the present application is a kind of bottle embryo detection material return mechanism for plastic bottle processing, including bottle embryo track mechanism 1 and fixed mounting seat 2, detection electric eye 3, material return assembly 4;Bottle embryo track mechanism 1 relative to the inside of the evenly matched with several roller guide 101, roller guide 101 inside plug-in cooperation has the warming head 102, warming head 102 bottom cooperation has bottle embryo 5, fixed mounting seat 2 is located below bottle embryo track mechanism 1 and bottle embryo 5;Fixed mounting seat 2 is fixedly installed with material return assembly 4 below bottle embryo 5, fixed mounting seat 2 is also fixedly installed with detection electric eye 3 in front of material return assembly 4, detection electric eye 3 and material return assembly 4 are electrically connected with control panel;Material return assembly 4 includes cylinder 401 and material return plate 402, the telescopic end of cylinder 401 is fixedly installed with material return plate 402, the top of material return plate 402 is provided with a let slot 403, material return plate 402 is provided with material return pressing plate 404 on both sides of let slot 403;The inner wall of let slot 403 and the top of bottle embryo 5 are gap matched;In actual working scene, bottle embryo 5 is inserted after warming head 102, its external performance is three kinds of forms, form one is: warming head 102 is completely inserted into bottle embryo 5;Form two is: bottle embryo 5 is not completely inserted but not inclined;Form three is: bottle embryo 5 is not completely inserted and inclined;Among them, form three is the main factor of breaking the lamp in the heating system, so it must be rejected;Form two is not likely to break the lamp, but it needs to be transferred to the mechanical hand after heating, which may appear the problem of handover, and may fall randomly in operation, so it also needs to be rejected;The bottle embryo 5 in form two and form three is lower than the bottom of bottle embryo 5 in form one, at this time, detection electric eye 3 is installed in the slightly low part of the bottom of bottle embryo 5 in form one, so that bottle embryo 5 in form two and form three is easily detected by detection electric eye 3;When detection electric eye 3 detects, detection electric eye 3 will output a signal to the control panel;The control panel controls the up-and-down telescopic operation of cylinder 401, and the bottle embryo 5 in form two and form three is rejected by material return plate 402.

[0027] Among them, detection electric eye 3 emits a beam of infrared or laser light;When the light meets bottle embryo 5, part of the light will be absorbed by the object, and part of the light will be reflected back;The photodiode or photosensitive element in detection electric eye 3 receives the reflected light;It is converted into an electrical signal and transmitted to the circuit for processing and analysis;By measuring the intensity and time of the received light signal, the electric eye can judge the existence and position of the object;When bottle embryo 5 blocks the light beam, the received reflected light signal will weaken or disappear, thereby triggering the output signal of the electric eye.

[0028] Among them as Figure 2-3As shown, the fixed mounting seat 2 is fixedly installed with the material return cylinder 6 below the top of the material return plate 402; the horizontal distance between the bottom of the material return plate 402 and the material return pressing plate 404 and the horizontal distance between the adjacent two bottle preforms 5 is in the range of 1-3; when the material return pressing plate 404 extrudes the bottle preform 5 downward to make the bottle preform 5 fall, the bottom of the material return plate 402 cannot cause obstruction, so the bottom of the material return plate 402 cannot be directly below the material return pressing plate 404, but there is a horizontal distance which is not less than the horizontal distance between the adjacent two bottle preforms 5.

[0029] The working principle of the embodiment is that if the warming head 102 is completely inserted into the bottle preform 5, the detection electric eye 3 cannot detect a signal, the cylinder 401 does not act, and the bottle preform 5 normally passes through the material return plate 402 into the warming system; if the warming head 102 cannot be completely inserted into the bottle preform 5, the abnormal state forms two and three are presented, at this time the detection electric eye 3 detects a signal, after a delay, the bottle preform 5 runs to the material falling station, the cylinder 401 quickly acts, drives the material return plate 402 to move vertically downward, the material return plate 402 clamps the support ring of the bottle preform 5 in the abnormal state and drives the bottle preform 5 to act downward, the bottle preform 5 in the abnormal state is separated from the warming head 102 and falls into the material falling cylinder 6 below to be collected, the cylinder 401 quickly returns to the original position, and waits for the next signal.

[0030] The bottle preform detection material return mechanism of the embodiment has the advantages of simple structure and easy modification of existing equipment, and is especially suitable for old equipment with insufficient or decreased machining precision; by removing the bottle preform 5 in the abnormal state in advance, the occurrence of lamp tube damage is reduced, the abnormal downtime is reduced, and the maintenance of the safe operation of the plastic bottle production plays an important role, and has strong practicality.

[0031] Embodiment two

[0032] On the basis of embodiment one, a more preferred technical solution is Figure 4-5 As shown, the fixed mounting seat 2 is fixedly installed with the limiting sliding groove 201 on one side of the material return plate 402, and the inner side wall of the limiting sliding groove 201 is in sliding cooperation with one side of the material return plate 402; the limiting sliding groove 201 is used to control the lifting stroke range of the cylinder 401 and the bottom of the material return plate 402, so as to avoid that the bottom of the material return plate 402 is too high to hinder the bottom of the bottle preform 5, and also avoid that the top of the material return plate 402 is too low to smoothly complete the removal operation of the bottle preform 5 in the forms two and three.

[0033] Among them, as Figure 5As shown, the bottom wall of the limiting sliding groove 201 is provided with a mounting groove, and the photoelectric sensor 202 is fixedly installed in the mounting groove, and the photoelectric sensor 202 is electrically connected with a control panel; the photoelectric sensor 202 collects data information of the lifting height of the cylinder 401 and the material returning plate 402 in the rejecting operation process, and the control panel can determine whether the rejecting operation is completed according to the data information of the lifting height.

[0034] As shown in the drawings, Figure 5 As shown, the fixed mounting seat 2 is also fixedly installed with a detection electric eye A301 for detecting whether the material returning is completed at the rear side of the material returning assembly 4, and the height of the detection electric eye A301 is not lower than the height of the detection electric eye 3; when the detection electric eye 3 detects the bottle embryo 5 in the second shape and the third shape, the control panel will control the cylinder 401 and the material returning plate 402 to perform the material returning operation after a corresponding delay time according to the conveying speed of the roller guide 101; and the detection electric eye A301 will also detect that the bottle embryo 5 under the roller guide 101 at this position is rejected after the corresponding delay time, so as to verify that the material returning assembly 4 has accurately completed the material returning operation.

[0035] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their entire scope and equivalents.

Claims

1. A preform detection and return mechanism for plastic bottle processing, comprising a preform track mechanism (1) and a fixed mounting seat (2), characterized in that: It includes a detection electric eye (3) and a material return component (4); The bottle preform track mechanism (1) is evenly matched with a plurality of roller guide seats (101) on one relative inner side surface, the roller guide seat (101) is plugged with a heating head (102) inside, and the bottom of the heating head (102) is matched with the bottle preform (5), and the fixed mounting seat (2) is located below the bottle preform track mechanism (1) and the bottle preform (5); the fixed mounting seat (2) is fixedly mounted with a material return assembly (4) below the bottle preform (5), and the fixed mounting seat (2) is also fixedly mounted with a detection electric eye (3) on the front side of the material return assembly (4), and the detection electric eye (3) and the material return assembly (4) are both electrically connected to a control panel; The material stripping assembly (4) comprises a cylinder (401) and a material stripping plate (402); the material stripping plate (402) is fixedly mounted on the telescopic end of the cylinder (401); a clearance groove (403) is provided on the top of the material stripping plate (402); and the material stripping plate (402) is provided with a material stripping pressing plate (404) on both sides of the clearance groove (403); and the inner wall of the clearance groove (403) is clearance-matched with the top of the bottle preform (5).

2. The preform detection and material return mechanism for plastic bottle processing according to claim 1, characterized in that: The fixed mounting seat (2) is fixedly mounted with a limiting slide groove (201) on one side of the stripping plate (402), and the inner side wall of the limiting slide groove (201) is slidably matched with one side of the stripping plate (402).

3. The preform detection and material return mechanism for plastic bottle processing according to claim 2, characterized in that: An installation groove is provided on the inner bottom wall of the position-limiting sliding groove (201), a photoelectric sensor (202) is fixedly installed in the installation groove, and the photoelectric sensor (202) is electrically connected to a control panel.

4. The preform detection and material return mechanism for plastic bottle processing according to claim 1, characterized in that: The fixed mounting seat (2) is fixedly mounted with a material receiving cylinder (6) below the top of the material stripping plate (402).

5. The preform detection and material return mechanism for plastic bottle processing according to claim 1, characterized in that: The fixed mounting seat (2) is also fixedly mounted with a detection electric eye A (301) on the rear side of the material return assembly (4) for detecting whether the material return is completed.

6. The preform detection and material return mechanism for plastic bottle processing according to claim 1, characterized in that: The ratio range value of the horizontal distance between the bottom of the stripping plate (402) and the stripping pressing plate (404) and the horizontal distance between two adjacent bottle blanks (5) is 1-3.

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