A push plate ejection mechanism of a movable mandrel of an injection blow machine

Abstract

The utility model discloses a kind of push plate ejection mechanism of movable core rod of injection blow molding machine, including core rod head, core rod, limit board, fixed frame, variable frequency motor, eccentric wheel and guide rod, the inside of the core rod is equipped with core rod head, the end of the core rod head is connected with the end of guide rod by piston head, the end of the guide rod is connected with the first connecting lug of transmission rod one end by ear bracket, the other end of the transmission rod is connected with eccentric wheel by second connecting lug, the eccentric wheel is rotatably connected with fixed frame.The utility model is equipped with core rod head in the core rod, and the end of core rod head is connected with guide rod, the telescopic of guide rod can control the in and out of core rod head in core rod, and guide rod is hinged with the first connecting lug of transmission rod end by ear bracket, transmission rod is connected with eccentric wheel by second connecting lug, and the rotation of eccentric wheel is controlled by variable frequency motor, so that it can adjust the telescopic frequency of guide rod, so that the frequency of core rod head pushing out can be changed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the push plate ejection mechanism of injection blow machine movable core rod related field, concretely is a kind of push plate ejection mechanism of injection blow machine movable core rod. BACKGROUND

[0002] The push plate ejection mechanism of injection blow machine movable core rod is used to eject control to the push plate of injection blow machine movable core rod, it is convenient to injection blow forming to bottle body;

[0003] For example, the authorized patent (injection blow core rod) with publication number CN217346654U: including: core rod top rod, core rod body and its rear part movably arranged in the core rod head in the core rod body, the middle part of core rod head is provided with conical boss, the rear part of core rod head is provided with rod-shaped guide part, the front part of core rod head is provided with at least three outwardly opening grooves at its end along the circumference;The core rod body is sequentially provided with spring setting hole, top rod setting hole and rod head setting hole along the axis, the diameter of spring setting hole and rod head setting hole is greater than the diameter of top rod setting hole, the core rod body is provided with conical setting hole along the mouth of rod head setting hole, the core rod top rod is movably arranged in top rod setting hole, and the front end thereof is connected with core rod head, and the rear end thereof is provided with limit block after reset spring is sleeved.The injection blow core rod can be widely used in various injection blow devices;

[0004] The above-mentioned prior art uses spring to control injection blow, and this mode has insufficient continuous effect, so that there is a limitation of spring reset in the process of re-injection blow, it is inconvenient to adjust the efficiency of injection blow, and the use is not convenient, and the flexibility is poor, and the spring is easy to deform after long-term use, and the service life is short. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of push plate ejection mechanism of injection blow machine movable core rod to solve the problem that spring is used to control injection blow in the above background art, and this mode has insufficient continuous effect, so that there is a limitation of spring reset in the process of re-injection blow, it is inconvenient to adjust the efficiency of injection blow, and the use is not convenient, and the flexibility is poor, and the spring is easy to deform after long-term use, and the service life is short.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of push plate ejection mechanism of injection blow machine movable core rod, including core rod head, core rod, limit plate, fixed frame, variable frequency motor, eccentric wheel and guide rod, the inside of the core rod is equipped with core rod head, the end of the core rod head is connected with the end of guide rod by piston head, the end of the guide rod is connected with the first connecting lug of transmission rod one end by lug bracket, the other end of the transmission rod is connected with eccentric wheel by second connecting lug, the eccentric wheel is rotatably connected with fixed frame.

[0007] In further embodiments, one side of the fixing frame is provided with a variable frequency motor, and an output shaft of the variable frequency motor is connected with one side of the eccentric wheel.

[0008] In further embodiments, the end of the core rod is provided with a limiting plate, and the fixing frame is connected with two sides of the limiting plate.

[0009] In further embodiments, a limiting sleeve is arranged in the middle of one side of the limiting plate, and the guide rod is connected with the guide hole in the middle of the limiting sleeve in a sliding guide mode.

[0010] In further embodiments, the end of the piston head is provided with a hinged frame, and the hinged frame is hinged with the end of the guide rod.

[0011] In further embodiments, the eccentric wheel is provided with a fixed mounting hole and a rotating mounting hole, the fixed mounting hole is fixedly connected with the output shaft of the variable frequency motor, and the rotating mounting hole is rotatably connected with the second connecting lug through a pin shaft.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The core rod is internally provided with a core rod head, the end of the core rod head is connected with the guide rod, the extension and retraction of the guide rod can control the core rod head to go in and out of the core rod, the guide rod is hinged with the first connecting lug at the end of the transmission rod through the ear frame, the transmission rod is connected with the eccentric wheel through the second connecting lug, and the rotation of the eccentric wheel is controlled by the variable frequency motor, so that the extension and retraction frequency of the guide rod can be adjusted, the frequency of the core rod head being pushed out can be changed, the injection blowing machine can be used in cooperation with different feeding efficiencies, the use is convenient, and the flexibility is improved.

[0014] 2. The end of the core rod is provided with a limiting plate, and the fixing frame is arranged on both sides of the limiting plate, the eccentric transmission mechanism can be limitingly installed through the fixing frame, installation and fixation are convenient, and safety protection can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the push plate ejection mechanism of the movable core rod of the injection blowing machine.

[0016] Figure 2 It is a structure schematic view of the eccentric transmission mechanism.

[0017] Figure 3 It is a side view of the limiting plate.

[0018] Figure 4 It is a front view of the eccentric wheel.

[0019] In the figure: 1, the core rod head; 2, the core rod; 3, the piston head; 4, the limiting plate; 5, the limiting sleeve; 6, the fixed frame; 7, the variable frequency motor; 8, the eccentric wheel; 9, the guide hole; 10, the guide rod; 11, the ear frame; 12, the first connecting ear; 13, the transmission rod; 14, the second connecting ear. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Please refer to Figures 1-3 The utility model provides an embodiment: a kind of push plate ejection mechanism of movable core rod of injection blowing machine, including core rod head 1, core rod 2, limiting plate 4, fixed frame 6, variable frequency motor 7, eccentric wheel 8 and guide rod 10, the inside of core rod 2 is equipped with core rod head 1, the end of core rod head 1 is connected with the end of guide rod 10 by piston head 3, the end of guide rod 10 is connected with the first connecting ear 12 of transmission rod 13 one end by ear frame 11, the other end of transmission rod 13 is connected with eccentric wheel 8 by second connecting ear 14, eccentric wheel 8 is rotatably connected with fixed frame 6;Through piston head 3 can drive core rod head 1 sliding guide in core rod 2, through guide rod 10 is used to control the extension of core rod head 1, through core rod head 1 is used to injection blow molding of injection molded bottle, through ear frame 11 is used to articulate with first connecting ear 12, through second connecting ear 14 is convenient and eccentric wheel 8 rotatably connected.

[0022] The side of fixed frame 6 is equipped with variable frequency motor 7, the output shaft of variable frequency motor 7 is connected with the side of eccentric wheel 8, through variable frequency motor 7 can drive eccentric wheel 8 rotation, eccentric wheel 8 is equipped with fixed installation mouth and rotating installation mouth, and fixed installation mouth is fixedly connected with the output shaft of variable frequency motor 7, rotating installation mouth is rotatably connected with second connecting ear 14 by pin shaft.

[0023] The end of core rod 2 is equipped with limiting plate 4, and the two sides of fixed frame 6 are connected with limiting plate 4, and limiting plate 4 is used to limit the installation of fixed frame 6;The middle of the side of limiting plate 4 is equipped with limiting sleeve 5, and guide rod 10 is slidingly and directionally connected with the guide hole 9 in the middle of limiting sleeve 5, and limiting sleeve 5 is used to limit the extension of guide rod 10.

[0024] The end of piston head 3 is equipped with articulated frame, and the end of guide rod 10 is articulated with articulated frame, and articulated frame is used to facilitate the articulation of piston head 3 and guide rod 10.

[0025] Working principle: when using, through the variable frequency motor 8 drives eccentric wheel 7 rotation, makes eccentric wheel 8 through transmission rod 13 control guide rod 10 in the core rod 2 telescopic, and can through the limiting sleeve 5 and carry out limiting protection, through the telescopic guide rod 10 drive core rod head 1 in the core rod 2 in and out, through core rod head 1 to injection blow molding bottle is formed, through piston head 3 makes core rod head 1 can be in the core rod 2 stable guide, through the limiting plate 4 facilitates the installation of fixed frame 6, through fixed frame 6 facilitates the installation of variable frequency motor 7, through the ear frame 11 is convenient and transmission rod 13 end first connecting ear 12 hinged.

[0026] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but rather can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than that of the above description, and it is intended to embrace all changes and modifications that fall within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

Claims

1. A push plate ejection mechanism of a movable core rod of a blow molding machine, comprising a core rod head (1), a core rod (2), a limiting plate (4), a fixing frame (6), a variable frequency motor (7), an eccentric wheel (8) and a guide rod (10), characterized in that: The inside of the core rod (2) is internally provided with a core rod head (1), the end of the core rod head (1) is connected with the end of a guide rod (10) through a piston head (3), the end of the guide rod (10) is connected with a first connecting lug (12) at one end of a transmission rod (13) through an ear bracket (11), the other end of the transmission rod (13) is connected with an eccentric wheel (8) through a second connecting lug (14), and the eccentric wheel (8) is rotationally connected with a fixing frame (6).

2. A push plate ejection mechanism for a movable core rod of an injection blow machine according to claim 1, characterized in that: One side of the fixing frame (6) is provided with a variable frequency motor (7), and the output shaft of the variable frequency motor (7) is connected with one side of the eccentric wheel (8).

3. A push plate ejection mechanism for a movable core rod of an injection blow machine according to claim 1, characterized in that: The end of the core rod (2) is provided with a limiting plate (4), and the fixing frame (6) is connected with both sides of the limiting plate (4).

4. A push plate ejection mechanism for a movable core rod of an injection blow machine according to claim 1, characterized in that: The middle of one side of the limiting plate (4) is provided with a limiting sleeve (5), and the guide rod (10) is slidingly and guidingly connected with the guide hole (9) in the middle of the limiting sleeve (5).

5. A push plate ejection mechanism for a movable core rod of an injection blow machine according to claim 1, characterized in that: The end of the piston head (3) is provided with a hinged bracket, and the hinged bracket is hinged with the end of the guide rod (10).

6. A push plate ejection mechanism for a moving core rod of an injection blow machine according to claim 1, characterized in that: The eccentric wheel (8) is provided with a fixed mounting port and a rotating mounting port, the fixed mounting port is fixedly connected with the output shaft of the variable frequency motor (7), and the rotating mounting port is rotationally connected with the second connecting lug (14) through a pin shaft.

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