Mold opening and closing device for blowing mold

Abstract

The utility model discloses a blow mold opening and closing device which comprises a mold base, an upper mold frame capable of being opened and closed and a lower mold frame with the adjustable height are arranged on the mold base, the upper mold frame is rotationally connected with the mold base through a rotating shaft, the mold base is further provided with a hydraulic rod for driving the upper mold frame to be opened and closed, and the two ends of the hydraulic rod are rotationally connected with the upper mold frame and the mold base respectively. The lower die frame is connected with the die holder through a lifting mechanism; the lifting mechanism comprises a hydraulic cylinder arranged between the die holder and the lower die frame, the fixed end of the hydraulic cylinder is connected with the die holder, the free end of the hydraulic cylinder is connected with the lower die frame, and the hydraulic cylinder drives the lower die frame to adjust the height.

Description

Technical Field

[0001] The utility model belongs to the technical field of blow mould auxiliary equipment, in particular to a blow mould opening and closing device. Background Art

[0002] When the blow molding machine is operating, when the product needs to be molded, the mold opening and closing device is needed. It generally has two functions. One is to lock the mold to prevent the mold from moving, deforming and running during injection molding. The other is to pull the injection molded product out of the cavity when opening the mold to separate the product from the mold. This is the most important step in the production process of blow molding products. Therefore, the quality of mold opening and closing directly affects the quality of blow molding products. However, general mold opening and closing are fixed, large in size, heavy in tonnage, and about ten tons. Therefore, there are many troubles during operation. Since the original mold opening and closing is fixed, the function of a single mold opening and closing is relatively single, the processing mode is relatively fixed, and one mold opening and closing cannot be used for multiple products. Therefore, it is urgent to invent a new type of blow molding machine mold opening and closing to meet different production needs. Utility Model Content

[0003] The utility model mainly solves the technical problem of providing a blow mold opening and closing device.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is:

[0005] A blow mold opening and closing device comprises a mold base, on which an upper mold frame which can be opened and closed is arranged

[0006] and a lower mold frame with adjustable height, the upper mold frame is rotatably connected to the mold base through a rotating shaft, the mold base is also provided with a hydraulic rod for driving the upper mold frame to open and close, the two ends of the hydraulic rod are rotatably connected to the upper mold frame and the mold base respectively, and the lower mold frame is connected to the mold base through a lifting mechanism;

[0007] The lifting mechanism includes a hydraulic cylinder disposed between the die base and the lower die frame, the fixed end of the hydraulic cylinder is connected to the die base, the free end of the hydraulic cylinder is connected to the lower die frame, and the hydraulic cylinder drives the lower die frame to adjust its height.

[0008] Preferably, the lifting mechanism further comprises a plurality of sliding rods, the sliding rods are connected to the bottom of the lower mold frame, and the sliding rods are slidably connected to the mold base via sliding sleeves.

[0009] Preferably, the lifting mechanism further comprises a synchronization rod, wherein the synchronization rod is coaxially connected to a plurality of synchronization

[0010] The side wall of the slide rod is provided with teeth, and the teeth of the slide rod on the same side mesh with the synchronous gear. Preferably, the synchronous rod is rotatably connected to the mold base through a rotating seat, and the rotating seat is provided with

[0011] A bearing is provided, the synchronization rod is rotatably connected to the rotating seat through the bearing, and the fixed end of the rotating seat is connected to the mold frame.

[0012] Preferably, a plurality of lower limit columns are provided on a side of the mold frame away from the rotating shaft, and a plurality of upper limit columns are correspondingly provided on the upper mold frame. When the upper mold frame is closed, the upper limit columns abut against the lower limit columns.

[0013] Preferably, a buckle is provided at one end of the lower limit column close to the upper limit column, and when the upper mold frame is closed, the buckle can limit the upper limit column and the lower limit column, and the buckle is driven by a buckle cylinder to open or close.

[0014] Preferably, a rotation support column is provided on one side of the mold frame close to the rotation shaft, and the upper mold frame is rotationally connected to the rotation support column via the rotation shaft.

[0015] Preferably, opposite sides of the upper mold frame and the lower mold frame are both provided with locking grooves for installing mold fastening screws.

[0016] The beneficial technical effects of the utility model are:

[0017] The device of the utility model is connected with the die base through a lifting mechanism via a lower die frame with adjustable height.

[0018] It can realize the rapid adjustment and replacement of molds, and improve production efficiency. The lifting mechanism includes a hydraulic cylinder and a slide bar, which can stably and reliably adjust the height of the lower mold frame to ensure the smooth opening and closing process of the mold. The design of the synchronization rod and the synchronization gear can ensure the synchronous movement of the slide bars on both sides of the lower mold frame to ensure the balance and stability of the mold. The equipment is equipped with an upper limit column, a lower limit column and a buckle, which can effectively limit the opening and closing range of the mold and improve the accuracy and stability of the mold. The setting of the rotating support column enables the upper mold frame to be connected to the support column through the rotating shaft, ensuring the smooth opening and closing process of the mold. The design of the locking groove facilitates the installation of the mold fastening screws and simplifies the replacement and maintenance process of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the blow mold opening and closing device of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the mold base and the lifting mechanism of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the guide rod and the synchronous gear of the utility model;

[0022] The parts in the accompanying drawings are marked as follows:

[0023] 1. Die base, 2. Upper die frame, 3. Lower die frame, 4. Hydraulic rod, 5. Hydraulic cylinder, 6. Slide rod, 7. Slide sleeve, 8. Synchronous gear, 9. Synchronous rod, 10. Rotating seat, 11. Lower limit column, 12. Upper limit column, 13. Buckle, 14. Buckle cylinder, 15. Teeth, 16. Locking groove, 17. Rotating support column, 18. Rotating shaft. DETAILED DESCRIPTION

[0024] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] This specific embodiment discloses in detail a blow mold opening and closing device, including a mold base 1, on which an upper mold frame 2 that can be opened and closed and a lower mold frame 3 that can adjust the height are arranged, the upper mold frame is rotatably connected to the mold base through a rotating shaft 18, the mold base is also provided with a hydraulic rod 4 that drives the upper mold frame to open and close, the two ends of the hydraulic rod are rotatably connected to the upper mold frame and the mold base respectively, and the lower mold frame is connected to the mold base through a lifting mechanism;

[0028] The lifting mechanism includes a hydraulic cylinder 5 disposed between the die base and the lower die frame, the fixed end of the hydraulic cylinder is connected to the die base, the free end of the hydraulic cylinder is connected to the lower die frame, and the hydraulic cylinder drives the lower die frame to adjust its height.

[0029] Furthermore, the lifting mechanism further comprises a plurality of sliding rods 6 , the sliding rods being connected to the bottom of the lower mold frame, and the sliding rods being slidably connected to the mold base via sliding sleeves 7 .

[0030] Furthermore, the lifting mechanism further comprises a synchronization rod 9, which is coaxially connected with a plurality of synchronization gears 8. The side wall of the slide rod is provided with teeth 15, and the teeth of the slide rod on the same side are meshed with the synchronization gears.

[0031] Furthermore, the synchronization rod is rotatably connected to the mold base via a rotating seat 10, the rotating seat is provided with a bearing, the synchronization rod is rotatably connected to the rotating seat via the bearing, and the fixed end of the rotating seat is connected to the mold frame.

[0032] Furthermore, a plurality of lower limit columns 11 are arranged on a side of the mold frame away from the rotating shaft, and a plurality of upper limit columns 12 are correspondingly arranged on the upper mold frame. When the upper mold frame is closed, the upper limit columns abut against the lower limit columns.

[0033] Furthermore, a buckle 13 is provided at one end of the lower limit column close to the upper limit column. When the upper mold frame is closed, the buckle can limit the upper limit column and the lower limit column. The buckle is driven by a buckle cylinder 14 to open or close.

[0034] Furthermore, a rotation support column 17 is provided on one side of the mold frame close to the rotation shaft, and the upper mold frame is rotationally connected to the rotation support column via the rotation shaft.

[0035] Furthermore, the upper mold frame and the lower mold frame are provided with locking grooves 16 on the opposite sides thereof for installing mold fastening screws.

[0036] The device of the utility model is connected to the mold base through a lifting mechanism via a lower mold frame with adjustable height, which can realize rapid adjustment and replacement of the mold and improve production efficiency. The lifting mechanism includes a hydraulic cylinder and a slide bar, which can stably and reliably adjust the height of the lower mold frame to ensure smooth opening and closing of the mold. The design of the synchronization rod and the synchronization gear can ensure the synchronous movement of the slide bars on both sides of the lower mold frame to ensure the balance and stability of the mold. The equipment is provided with an upper limit column and a lower limit column and a buckle, which can effectively limit the opening and closing range of the mold and improve the accuracy and stability of the mold. The setting of the rotating support column can connect the upper mold frame with the support column through the rotating shaft to ensure a smooth opening and closing process of the mold. The design of the locking groove facilitates the installation of the mold fastening screws and simplifies the replacement and maintenance process of the mold.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A blow mold opening and closing device, characterized in that: The mold base comprises an upper mold frame that can be opened and closed and a lower mold frame that can adjust the height. The upper mold frame is rotatably connected to the mold base through a rotating shaft. The mold base is also provided with a hydraulic rod that drives the upper mold frame to open and close. The two ends of the hydraulic rod are rotatably connected to the upper mold frame and the mold base respectively. The lower mold frame is connected to the mold base through a lifting mechanism. The lifting mechanism includes a hydraulic cylinder disposed between the die base and the lower die frame, the fixed end of the hydraulic cylinder is connected to the die base, the free end of the hydraulic cylinder is connected to the lower die frame, and the hydraulic cylinder drives the lower die frame to adjust its height.

2. The blow mold opening and closing device according to claim 1, characterized in that: The lifting mechanism also includes a plurality of sliding rods, which are connected to the bottom of the lower mold frame and are slidably connected to the mold base via sliding sleeves.

3. The blow mold opening and closing device according to claim 2, characterized in that: The lifting mechanism also includes a synchronous rod, which is coaxially connected to a plurality of synchronous gears. The side wall of the sliding rod is provided with teeth, and the teeth of the sliding rod on the same side are meshed with the synchronous gears.

4. The blow mold opening and closing device according to claim 3, characterized in that: The synchronization rod is rotationally connected to the mold base via a rotating seat, the rotating seat is provided with a bearing, the synchronization rod is rotationally connected to the rotating seat via the bearing, and the fixed end of the rotating seat is connected to the mold frame.

5. The blow mold opening and closing device according to claim 1, characterized in that: A plurality of lower limit columns are arranged on one side of the mold frame away from the rotating shaft, and a plurality of upper limit columns are correspondingly arranged on the upper mold frame. When the upper mold frame is closed, the upper limit columns abut against the lower limit columns.

6. The blow mold opening and closing device according to claim 5, characterized in that: A buckle is provided at one end of the lower limit column close to the upper limit column. When the upper mold frame is closed, the buckle can limit the upper limit column and the lower limit column. The buckle is driven by a buckle cylinder to open or close.

7. The blow mold opening and closing device according to claim 1, characterized in that: A rotation support column is arranged on one side of the mold frame close to the rotation shaft, and the upper mold frame is rotationally connected to the rotation support column via the rotation shaft.

8. The blow mold opening and closing device according to claim 1, characterized in that: The upper mold frame and the lower mold frame have opposite sides each provided with a locking groove for installing a mold fastening screw.

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