A swing arm adjustment device for a bottle blowing machine mold carrier

Abstract

This invention discloses a swing arm adjustment device for a blow molding machine mold frame, comprising a lifting mechanism and a driving mechanism. The lifting mechanism includes a lifting seat movably mounted on the frame, a first limiting hole and a second limiting hole formed on the lifting seat for downward movement of the swing arm roller and the expansion sleeve, respectively, and an upper end face of the swing arm located at the top of the lifting seat for upward support, the upper end face being parallel to the horizontal plane. The first limiting hole includes a guide section with a gradually decreasing inner diameter from top to bottom, and a limiting section connected below the guide section for clearance fit with the swing arm roller, the minimum inner diameter of the guide section being equal to the inner diameter of the limiting section. The driving mechanism is mounted on the frame, and its output end is connected to the lifting seat. The driving mechanism drives the lifting seat to move up and down relative to the frame. This invention's swing arm adjustment device for a blow molding machine mold frame can be operated by a single person, has low adjustment difficulty, and a high success rate of swing arm reset after adjustment.

Description

Technical Field

[0001] This invention relates to the field of blow molding technology, and in particular to a swing arm adjustment device for a blow molding machine mold frame. Background Technology

[0002] During the blow molding process, the blow molding machine involves several steps, including unlocking the mold locking mechanism, opening the mold with the mold opening and closing swing arm, closing the mold with the mold opening and closing swing arm, and locking the mold locking mechanism. The opening and closing of the mold locking mechanism is controlled by an opening and closing cam, while the opening and closing of the mold opening and closing swing arm is controlled by an opening and closing cam. If the swing arm roller is misaligned before entering the opening and closing cam, it can cause the swing arm roller to collide with the opening and closing cam, resulting in damage to the swing arm roller or the opening and closing cam.

[0003] In the existing technology, a swing arm adjustment device is set on the frame to reset the misaligned opening and closing swing arm. However, this method has problems such as difficulty for a single person to operate, high adjustment difficulty, and low reset success rate after adjustment. Summary of the Invention

[0004] The purpose of this invention is to provide a swing arm adjustment device for a blow molding machine mold frame, which can be operated by a single person, is easy to adjust, and has a high success rate of swing arm reset after adjustment.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A swing arm adjustment device for a blow molding machine mold frame is mounted on the frame. One end of the swing arm is connected to a swing arm shaft via an expansion sleeve, and the other end of the swing arm is provided with a swing arm roller. The swing arm adjustment device includes: A lifting mechanism includes a lifting seat movably mounted on the frame, a first limiting hole and a second limiting hole formed on the lifting seat for engaging the swing arm roller and the expansion sleeve downwards, and an upper end face provided on the top of the lifting seat for supporting the swing arm upwards, the upper end face being parallel to the horizontal plane; the first limiting hole includes a guide section with an inner diameter gradually decreasing from top to bottom, and a limiting section connected below the guide section and capable of clearance-fitting the swing arm roller, the minimum inner diameter of the guide section being equal to the inner diameter of the limiting section; A drive mechanism is mounted on the frame, and its output end is connected to the lifting seat. The drive mechanism is used to drive the lifting seat to move up and down relative to the frame.

[0006] Preferably, the guide segment is a tapered segment that tapers from top to bottom.

[0007] Preferably, the depth of the limiting segment is greater than or equal to the length of the swing arm roller.

[0008] Preferably, the second limiting hole extends through the lifting seat in the vertical direction, so that the expansion sleeve in the second limiting hole can be tightened under the action of external force.

[0009] Preferably, the swing arm adjustment device further includes a guide mechanism, which includes a guide seat disposed on the frame, a guide rail that can slide relative to each other, and a slider; of the guide rail and the slider, one is fixedly connected to the guide seat, and the other is used to connect to the lifting seat.

[0010] More preferably, the guide rail is fixedly connected to the guide seat, and the guide mechanism further includes an upper limit member disposed at the upper end of the guide rail.

[0011] More preferably, the slider is fixedly connected to the guide seat, and the guide mechanism further includes a lower limit member disposed at the lower end of the guide rail.

[0012] More preferably, the guide rail or the slider is provided with a first mating part, and the lifting mechanism further includes a second mating part provided on the side of the lifting seat and used to engage with the first mating part, wherein the engagement direction of the first mating part and the second mating part is perpendicular to the lifting direction of the lifting seat.

[0013] More preferably, there are at least two sets of guide rails and sliders, which are arranged sequentially and at intervals on the guide seat along the lifting direction perpendicular to the lifting seat.

[0014] Preferably, the drive mechanism includes a cylinder mounted on the frame and a push rod telescopically disposed in the cylinder along its own length, the push rod being used to connect to the lifting seat.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The swing arm adjustment device of the present invention for the mold frame of a blow molding machine has the following advantages: By setting a first limiting hole and a second limiting hole on the lifting seat and fitting them upwards onto the swing arm roller and the expansion sleeve respectively, the swing arm can be slightly rotated relative to the swing arm shaft under the adjustment of the first limiting hole, thus achieving precise reset of the swing arm with a high reset success rate. When the lifting seat rises, it supports the swing arm through its upper end face, keeping the swing arm in a horizontal state. After successful reset, the expansion sleeve is tightened directly while the swing arm is in a horizontal state. This not only allows for single-person operation, but also avoids reset failure caused by tilting of the swing arm during the tightening process of the expansion sleeve. The adjustment is easy and the reset success rate of the swing arm is high after adjustment. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the swing arm adjustment device (including the blow molding machine mold frame) according to a specific embodiment of the present invention. Appendix Figure 2 This is a side view of the swing arm adjustment device according to a specific embodiment of the present invention (including the blow molding machine mold frame). Appendix Figure 3 For the appendix Figure 1 A schematic diagram of the lifting mechanism.

[0017] The components include: 1. rocker arm; 2. expansion sleeve; 3. rocker arm shaft; 4. rocker arm roller; 5. Lifting mechanism; 51. Lifting seat; 52. First limiting hole; 521. Guide section; 522. Limiting section; 53. Second limiting hole; 54. Upper end face; 55. Second mating part; 6. Drive mechanism; 61. Cylinder block; 62. Push rod; 7. Guiding mechanism; 71. Guide seat; 72. Guide rail; 73. Slider; 74. Upper limit switch; 8. Main shaft; 9. First mold shell; 10. Second mold shell; 11. Linkage mechanism. Detailed Implementation

[0018] The technical solution of the present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "length", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0023] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0025] See Figure 1-2 As shown, this embodiment provides a swing arm adjustment device for a blow molding machine mold frame, mounted on the frame. The blow molding machine mold frame includes a main shaft 8 mounted on the frame, a first mold shell 9 and a second mold shell 10, one end of which is sleeved on the main shaft 8 and can be opened and closed relative to each other. At least one of the first mold shell 9 and the second mold shell 10 can rotate relative to the main shaft 8. The blow molding machine mold frame also includes a swing arm shaft 3 mounted on the frame and rotatable about its own axis. A linkage mechanism 11 is provided between the swing arm shaft 3 and the movable mold shell in the first mold shell 9 and the second mold shell 10 for driving it to rotate relative to the main shaft 8. The swing arm shaft 3 is fixedly connected to one end of the swing arm 1 through an expansion sleeve 2. By loosening the expansion sleeve 2, the swing arm 1 can rotate relative to the swing arm shaft 3 to adjust the initial position of the swing arm 1 relative to the swing arm shaft 3. The other end of the swing arm 1 is provided with a swing arm roller 4, which drives the swing arm shaft 3 to rotate by rolling on the opening and closing mold cam (not shown in the figure).

[0026] The aforementioned swing arm adjustment device includes a lifting mechanism 5 and a drive mechanism 6.

[0027] See Figure 3 As shown, the lifting mechanism 5 includes a lifting seat 51 that is movably mounted on the frame, a first limiting hole 52 and a second limiting hole 53 formed on the lifting seat 51 for the downward movement of the swing arm roller 4 and the expansion sleeve 2, and an upper end face 54 located at the top of the lifting seat 51 for supporting the swing arm 1 upwards. The upper end face 54 is parallel to the horizontal plane. This structure not only ensures that the swing arm 1 is in a horizontal state when adjusting the angle, greatly improving its reset success rate, but also eliminates the need for manual lifting of the swing arm 1 to coordinate with its angle adjustment, providing a feasible condition for single-person operation of the swing arm 1 reset.

[0028] The first limiting hole 52 includes a guide section 521 with an inner diameter that gradually decreases from top to bottom, and a limiting section 522 connected below the guide section 521 and capable of clearance fitting with the rocker arm roller 4. The minimum inner diameter of the guide section 521 is equal to the inner diameter of the limiting section 522. With this setting, before adjustment, the expansion sleeve 2 is loosened, and the rocker arm 1 is rotated so that the rocker arm roller 4 is positioned above the first limiting hole 52. When the lifting seat 51 is raised, the guide section 521 can be used to adjust the rocker arm 1 to rotate slightly relative to the rocker arm shaft 3 until the rocker arm roller 4 is fully inserted into the limiting section 522, thus successfully resetting the rocker arm 1.

[0029] In this embodiment, the guide section 521 is a tapered section that tapers from top to bottom. When there is an eccentricity between the rocker arm roller 4 and the guide section 521 within an allowable range, the rocker arm roller 4 can automatically adjust to be concentric with the guide section 521 under the action of the guide section 521.

[0030] In this embodiment, the depth of the limiting segment 522 is greater than or equal to the length of the swing arm roller 4, which enables the upper end face 54 of the lifting seat 51 to support the swing arm 1 upward and keep it in a horizontal state.

[0031] In this embodiment, the second limiting hole 53 extends through the lifting seat 51 in the vertical direction, so that the expansion sleeve 2 in the second limiting hole 53 can be tightened under the action of external force. With this setting, when the lifting seat 51 rises to the position, the operator can manually tighten the expansion sleeve 2 from bottom to top through the second limiting hole 53 to fix the swing arm 1 back to the swing arm shaft 3.

[0032] See Figure 1-2 As shown, the drive mechanism 6 is mounted on the frame, and the output end of the drive mechanism 6 is connected to the lifting seat 51. The drive mechanism 6 is used to drive the lifting seat 51 to move up and down relative to the frame.

[0033] In this embodiment, the drive mechanism 6 includes a cylinder 61 mounted on a frame and a push rod 62 that is telescopically mounted in the cylinder 61 along its own length. The push rod 62 is connected to the lifting seat 51 through its upper end.

[0034] See Figure 1 As shown, the swing arm adjustment device for the blow molding machine also includes a guide mechanism 7. The guide mechanism 7 includes a guide seat 71 mounted on the frame, a guide rail 72 that can slide relative to each other, and a slider 73. Of the guide rail 72 and the slider 73, one is fixedly connected to the guide seat 71, and the other is used to connect to the lifting seat 51.

[0035] In this embodiment, the guide rail 72 is fixedly connected to the guide seat 71, and the guide mechanism 7 also includes an upper limit member 74 disposed on the upper end of the guide rail 72. Since the slider 73 is connected to the lifting seat 51, the upper limit member 74 can prevent the slider 73 from detaching from the guide rail 72 upward.

[0036] In this embodiment, the slider 73 is provided with a first mating part (not shown in the figure), and the lifting mechanism 5 also includes a second mating part 55 provided on the side of the lifting seat 51 for engaging with the first mating part. The engagement direction of the first mating part and the second mating part 55 is perpendicular to the lifting direction of the lifting seat 51. This arrangement not only positions the lifting seat 51 but also prevents it from disengaging from the slider 73 during the lifting process.

[0037] In this embodiment, there are at least two sets of guide rails 72 and sliders 73, which are arranged sequentially and at intervals on the guide seat 71 along the lifting direction perpendicular to the lifting seat 51.

[0038] In another embodiment, the slider 73 is fixedly connected to the guide seat 71, and the guide mechanism 7 also includes a lower limit member disposed at the lower end of the guide rail 72. Since the guide rail 72 is connected to the lifting seat 51, the lower limit member can prevent the guide rail 72 from detaching from the slider 73 upwards. The first mating part is disposed on the guide rail 72.

[0039] The working process of this embodiment is described in detail below: When the swing arm roller 4 is misaligned, first rotate the corresponding blow molding machine mold frame to the swing arm adjustment device, then loosen the expansion sleeve 2, and manually adjust the swing arm 1 to rotate so that it is approximately directly above the first limit hole 52. Next, the drive mechanism 6 drives the lifting seat 51 to rise. The guide section 521 can adjust the swing arm 1 to rotate slightly relative to the swing arm shaft 3 until the swing arm roller 4 enters the limit section 522, and at the same time, the expansion sleeve 2 is fitted through the second limit hole 53. After the lifting seat 51 rises to the position, it supports the swing arm 1 and stops rising. The operator tightens the expansion sleeve 2 to reset the swing arm 1 and the swing arm roller 4. Finally, the drive mechanism 6 drives the lifting seat 51 to descend and reset.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A swing arm adjustment device for a blow molding machine mold frame, mounted on the frame, wherein one end of the swing arm is connected to a swing arm shaft via an expansion sleeve, and the other end of the swing arm is provided with a swing arm roller, characterized in that, The swing arm adjustment device includes: A lifting mechanism includes a lifting seat movably mounted on the frame, a first limiting hole and a second limiting hole formed on the lifting seat for engaging the swing arm roller and the expansion sleeve downwards, and an upper end face provided on the top of the lifting seat for supporting the swing arm upwards, the upper end face being parallel to the horizontal plane; the first limiting hole includes a guide section with an inner diameter gradually decreasing from top to bottom, and a limiting section connected below the guide section and capable of clearance-fitting the swing arm roller, the minimum inner diameter of the guide section being equal to the inner diameter of the limiting section; A drive mechanism is mounted on the frame, and its output end is connected to the lifting seat. The drive mechanism is used to drive the lifting seat to move up and down relative to the frame.

2. The swing arm adjustment device for a blow molding machine mold frame according to claim 1, characterized in that: The guide section is a tapered section that tapers from top to bottom.

3. The swing arm adjustment device for a blow molding machine mold frame according to claim 1, characterized in that: The depth of the limiting section is greater than or equal to the length of the swing arm roller.

4. The swing arm adjustment device for a blow molding machine mold frame according to claim 1, characterized in that: The second limiting hole extends through the lifting seat in the vertical direction so that the expansion sleeve in the second limiting hole can be tightened under the action of external force.

5. The swing arm adjustment device for a blow molding machine mold frame according to claim 1, characterized in that: The swing arm adjustment device further includes a guide mechanism, which includes a guide seat mounted on the frame, a guide rail that can slide relative to each other, and a slider; of the guide rail and the slider, one is fixedly connected to the guide seat, and the other is used to connect to the lifting seat.

6. The swing arm adjustment device for a blow molding machine mold frame according to claim 5, characterized in that: The guide rail is fixedly connected to the guide seat, and the guide mechanism also includes an upper limit member located at the upper end of the guide rail.

7. The swing arm adjustment device for a blow molding machine mold frame according to claim 5, characterized in that: The slider is fixedly connected to the guide seat, and the guide mechanism also includes a lower limit member located at the lower end of the guide rail.

8. The swing arm adjustment device for a blow molding machine mold frame according to claim 5, characterized in that: The guide rail or the slider is provided with a first mating part, and the lifting mechanism further includes a second mating part provided on the side of the lifting seat and used to engage with the first mating part. The engagement direction of the first mating part and the second mating part is perpendicular to the lifting direction of the lifting seat.

9. The swing arm adjustment device for a blow molding machine mold frame according to claim 5, characterized in that: There are at least two sets of guide rails and sliders, which are arranged sequentially and at intervals on the guide seat along the lifting direction perpendicular to the lifting seat.

10. The swing arm adjustment device for a blow molding machine mold frame according to claim 1, characterized in that: The drive mechanism includes a cylinder mounted on the frame and a push rod that is telescopically disposed in the cylinder along its own length. The push rod is used to connect to the lifting seat.

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