Auxiliary clamping device of blowing mold

Abstract

An auxiliary clamping device of a blowing mold comprises an operation table, supporting plates, hydraulic cylinders, a left clamping arm and a right clamping arm, the supporting plates are fixedly arranged at the two ends of the upper portion of the operation table respectively, the hydraulic cylinders are fixedly installed on the supporting plates respectively, the telescopic end of one hydraulic cylinder is connected with the left clamping arm, and the telescopic end of the other hydraulic cylinder is connected with the right clamping arm. The clamping device is characterized in that the left clamping arm and the right clamping arm are connected with the hydraulic cylinders through quick release assemblies, elastic ropes are arranged on the outer side faces of the two ends of the left clamping arm respectively, the tail ends of the elastic ropes are connected with fixing rings, the fixing rings are matched with fixing columns, and the fixing columns are connected with the left clamping arm and the right clamping arm respectively. The fixing column is installed on the outer side face of the right clamping arm, detachable connection between the two clamping arms used for clamping the die and the telescopic end of the hydraulic cylinder is achieved by designing the quick disassembly assembly, and therefore the requirement that the matched clamping arms can be replaced for dies of different models and types is met, and the practicability of the auxiliary clamping equipment is enhanced.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for blow molding dies, and in particular to an auxiliary clamping device for blow molding dies. Background Technology

[0002] A blow molding die, including a blow molding station, inflates a plastic preform into a plastic container, the inner wall of which matches the contour of the container to be produced. Air pressure is used to inflate the plastic preform into the plastic container. Suitable plastics for blow molding include polyethylene, polyvinyl chloride, polypropylene, and polyester.

[0003] Chinese Utility Model Patent No. CN202320347044.6 discloses an auxiliary clamping device for blow molding dies, including an operating table with a support column welded to the bottom. A pushing device is symmetrically arranged on the top of the operating table. The pushing device includes a support plate, a mounting plate, a hydraulic cylinder, and a hydraulic rod. The support plate is symmetrically welded to the top of the operating table, and the mounting plate is welded to the outer wall of the support plate. A hydraulic cylinder is located on the top of the mounting plate. One side of the hydraulic cylinder passes through the support plate, and a hydraulic rod is sleeved on one side of the hydraulic cylinder. A first mold and a second mold are welded to one side of the hydraulic rod, respectively. Both the first and second molds have fixing devices on their outer walls. This auxiliary clamping device for blow molding dies simplifies the structure of commonly used auxiliary clamping devices for blow molding dies, making it easier and more convenient to operate, more practical, and easier to promote and use on a large scale.

[0004] The existing auxiliary clamping devices mentioned above still have some problems when applied. Nowadays, mold factories generally produce various types of molds. However, in the above solution, the two sets of clamping arms used to clamp the mold are fixed to the hydraulic rod by welding. This makes it impossible to change the mold type. Not only is the practicality of the device low, but different auxiliary clamping equipment is also required for processing different types of molds, which also increases production costs. Utility Model Content

[0005] In view of the above-mentioned technical problems, this utility model provides an auxiliary clamping device for blow molding molds. By designing a quick-release component, the two clamping arms used for clamping the mold are detachably connected to the telescopic end of the hydraulic cylinder, thereby meeting the requirement that the appropriate clamping arms can be replaced for different models and types of molds, and enhancing the practicality of the auxiliary clamping device.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An auxiliary clamping device for a blow molding die includes an operating table, support plates, hydraulic cylinders, a left clamping arm, and a right clamping arm. Support plates are fixedly mounted at both ends of the operating table. A hydraulic cylinder is fixedly mounted on each support plate. The telescopic end of one hydraulic cylinder is connected to the left clamping arm, and the telescopic end of the other hydraulic cylinder is connected to the right clamping arm. The left and right clamping arms are both connected to the hydraulic cylinders via quick-release assemblies. Elastic ropes are provided on the outer surfaces of both ends of the left clamping arm, and the ends of the elastic ropes are connected to fixing rings. The fixing rings are adapted to fit a fixing post, which is mounted on the outer surface of the right clamping arm.

[0008] The quick-release assembly consists of a limiting frame, a limiting plate, a moving column, a pressure plate, a compression spring, and a connecting frame. The limiting frame is fixed to the end of the telescopic end of the hydraulic cylinder. The limiting frame has a limiting groove and a plug-in interface at the top. The limiting plate is inserted into the limiting frame through the plug-in interface and extends into the limiting groove. A pressure plate is located in the limiting groove of the limiting frame and is fixed to the end of the moving column. The other end of the moving column passes through a through hole in the limiting frame and extends to connect with the connecting frame. A compression spring is sleeved on the outside of the moving column, located between the pressure plate and the groove wall of the limiting groove.

[0009] Limiting plates are connected to the rear sides of both the left and right clamping arms.

[0010] Furthermore, the diameter of the pressure plate is larger than the diameter of the moving column to prevent the pressure plate from moving out of the limiting groove.

[0011] Furthermore, a positioning post is provided on the front side of the left clamping arm, which is adapted to the positioning groove provided on the front side of the right clamping arm. When the left clamping arm and the right clamping arm are in contact, the positioning post is inserted into the positioning groove, so that the two sets of clamping arms are more neatly connected and fitted.

[0012] Furthermore, the outer walls of the left and right clamping arms are symmetrically provided with blow molding openings to facilitate the subsequent installation of blow molding tubes. The molds inside the two clamping arms are blow molded by passing the blow molding tubes through the blow molding openings.

[0013] The beneficial effects of this utility model are:

[0014] This utility model achieves a detachable connection between the two clamping arms used for clamping the mold and the telescopic end of the hydraulic cylinder by designing a quick-release component, thereby meeting the requirement that the clamping arms can be replaced with appropriate ones for different types of molds, and enhancing the practicality of the auxiliary clamping equipment.

[0015] The quick-release assembly designed in this utility model allows the operator to simply pull the connecting frame backward during operation, causing the movable arm to move backward and thus the pressure plates that abut against the limiting plate to move backward, thereby releasing the limitation on the limiting plate and allowing the clamping arm to be removed from the limiting frame. Similarly, during installation, the limiting plate on the rear side of the clamping arm is inserted into the limiting frame through the insertion interface. When the hand pulling the connecting frame is released, the compression spring moves back to its original position, causing the pressure plate to quickly abut against and press against the limiting plate, thus completing the installation and limiting of the clamping arm. This not only makes the operation convenient but also shortens the time required for replacing and installing the clamping arm.

[0016] This invention features an elastic rope and a fixing ring at the end of the left clamping arm, and a fixing post that matches the fixing ring on the right clamping arm. After the left and right clamping arms are aligned and fitted under the control of a hydraulic cylinder, the operator snaps the fixing ring onto the fixing post. The elastic rope is then tightened, and the tension of the elastic rope pulls the left and right clamping arms together, making the clamping arms fit more tightly. This further reduces the problem of gaps in the middle of the mold affecting the blow molding effect due to the lack of clamping in the middle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an auxiliary clamping device for a blow molding die according to the present invention.

[0018] Figure 2 This is a partial structural diagram of the left clamping arm of the auxiliary clamping device for a blow molding die according to the present invention;

[0019] Figure 3 This is a partial structural diagram of the right clamping arm of the auxiliary clamping device for a blow molding die according to this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the quick-release assembly of an auxiliary clamping device for a blow molding die according to the present invention;

[0021] Figure 5 This is an exploded cross-sectional view of the quick-release assembly of an auxiliary clamping device for a blow molding die according to this utility model.

[0022] As shown in the figure: 1. Operating table, 2. Support plate, 3. Hydraulic cylinder, 4. Left clamping arm, 41. Positioning column, 5. Right clamping arm, 51. Positioning groove, 61. Limiting frame, 611. Insertion interface, 612. Limiting groove, 62. Limiting plate, 63. Pressure plate, 64. Moving column, 65. Connecting frame, 66. Compression spring, 71. Elastic rope, 72. Fixing ring, 73. Fixing column. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Example 1

[0027] As shown in the figure, support plates 2 are fixedly installed at both ends of the upper part of the operating platform 1. A hydraulic cylinder 3 is fixedly installed on each support plate 2. The end of the telescopic end of one hydraulic cylinder 3 is connected to the left clamping arm 4 through a quick-release assembly, and the end of the telescopic end of the other hydraulic cylinder 3 is also connected to the right clamping arm 5 through a quick-release assembly.

[0028] Among them, such as Figure 4 and 5The quick-release assembly consists of a limiting frame 61, a limiting plate 62, a moving column 64, a pressure plate 63, a compression spring 66, and a connecting frame 65. Limiting plates 62 are connected to the rear sides of both the left clamping arm 4 and the right clamping arm 5. The limiting frame 61 is fixed to the end of the telescopic end of the hydraulic cylinder 3. The limiting frame 61 has a limiting groove 612 and an insertion interface 611 at its top. The limiting plate 62 is inserted into the limiting frame 61 through the insertion interface 611 and extends into the limiting groove 612. A pressure plate 63 is located within the limiting groove 612 of the limiting frame 61, and is fixed to the end of the moving column 64. The other end of the moving column 64 passes through a through hole in the limiting frame 61 and extends to connect with the connecting frame 65. A compression spring 66 is sleeved on the outside of the moving column 64, located between the pressure plate 63 and the groove wall of the limiting groove 612.

[0029] Furthermore, the diameter of the pressure plate 63 is larger than the diameter of the moving column 64 to prevent the pressure plate 63 from moving out of the limiting groove 612.

[0030] like Figure 3 and 4 Elastic ropes 71 are provided on the outer surfaces of both ends of the left clamping arm 4. The ends of the elastic ropes 71 are connected to fixing rings 72. The fixing rings 72 are adapted to the fixing posts 73. The fixing posts 73 are installed on the outer surface of the right clamping arm 5.

[0031] A positioning post 41 is provided on the front side of the left clamping arm 4. The positioning post 41 is adapted to the positioning groove 51 provided on the front side of the right clamping arm 5. When the left clamping arm 4 and the right clamping arm 5 are in contact, the positioning post 41 is inserted into the positioning groove 51, so that the two sets of clamping arms are more neatly connected and fitted.

[0032] Furthermore, blow molding openings are symmetrically provided on the outer walls of the left clamping arm 4 and the right clamping arm 5, which facilitates the subsequent installation of the blow molding tube. The blow molding tube passes through the blow molding opening to blow mold the mold inside the two clamping arms.

[0033] Example 2

[0034] When using this utility model, firstly, the left clamping arm 4 and the right clamping arm 5, which are compatible with the mold, are respectively installed at the ends of the telescopic end of the hydraulic cylinder 3. By starting the hydraulic cylinder 3, the left clamping arm 4 and the right clamping arm 5 are controlled to move in opposite directions. After they are aligned and fitted together, the operator then connects the fixing ring 71 on the left clamping arm 4 to the fixing post 73 on the right clamping arm 5. As the elastic rope 72 is tightened, the tension of the elastic rope 72 makes the left clamping arm 4 and the right clamping arm 5 tighten together, making the clamping arms fit more tightly, further reducing the problem of the middle gap of the mold affecting the blow molding effect due to the middle part not being clamped.

[0035] Example 3

[0036] When changing to other mold models, it is necessary to replace the appropriate left clamping arm 4 and right clamping arm 5. The operator only needs to pull the connecting frame 65 backward, so that the movable block 64 moves backward, thereby moving each pressure plate 63 that abuts against the limiting plate 62 backward, thus releasing the limitation on the limiting plate 62, and the corresponding clamping arm can be removed from the limiting frame 61. Similarly, during installation, the connecting frame 65 needs to be pulled backward, so that the pressure plate 63 moves backward, and the compression spring 66 is in a compressed state. The limiting plate set on the rear side of the corresponding clamping arm is inserted from the insertion interface 611 on the limiting frame 61 to the limiting frame 61. When the hand pulling the connecting frame 65 is released, the compression spring 66 moves back, so that the pressure plate 63 quickly abuts and presses against the limiting plate 62, thus completing the installation and limitation of the clamping arm. This is not only convenient to operate, but also quick to replace and install the clamping arm.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary clamping device for a blow molding die, comprising an operating table, support plates, hydraulic cylinders, a left clamping arm, and a right clamping arm, wherein support plates are fixedly installed at both ends of the operating table, and a hydraulic cylinder is fixedly installed on each support plate; the telescopic end of one hydraulic cylinder is connected to the left clamping arm, and the telescopic end of the other hydraulic cylinder is connected to the right clamping arm, characterized in that... Both the left and right clamping arms are connected to the hydraulic cylinder via quick-release components. Elastic ropes are provided on the outer surfaces of both ends of the left clamping arm. The ends of the elastic ropes are connected to fixing rings, which are adapted to fixing posts. The fixing posts are installed on the outer surfaces of the right clamping arm.

2. The auxiliary clamping device for a blow molding die according to claim 1, characterized in that... The quick-release assembly consists of a limiting frame, a limiting plate, a moving column, a pressure plate, a compression spring, and a connecting frame. The limiting frame is fixed at the end of the telescopic end of the hydraulic cylinder. The limiting frame has a limiting groove and an insertion interface at the top. The limiting plate is inserted into the limiting frame through the insertion interface and extends into the limiting groove. A pressure plate is provided in the limiting groove of the limiting frame. The pressure plate is fixed at the end of the moving column. The other end of the moving column passes through a through hole provided on the limiting frame and extends out to connect with the connecting frame. A compression spring is sleeved on the outside of the moving column. The compression spring is located between the pressure plate and the groove wall of the limiting groove.

3. The auxiliary clamping device for a blow molding die according to claim 2, characterized in that... Limiting plates are connected to the rear sides of both the left and right clamping arms.

4. The auxiliary clamping device for a blow molding die according to claim 2, characterized in that... The diameter of the pressure plate is larger than the diameter of the moving column.

5. The auxiliary clamping device for a blow molding die according to claim 1, characterized in that... The left clamping arm has a positioning post on its front side, which is adapted to the positioning groove on the front side of the right clamping arm.

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