A bottom mold device for blowing hot-filled bottles

Abstract

The present invention discloses a bottom mold device for hot-filled bottles, comprising a cylinder device and a bracket, wherein the cylinder device comprises a cylinder body, a cylinder end cover and a piston that reciprocates inside the cylinder body, the upper part of the piston fixes a heating body for heating the bottom mold through a supporting shaft, the lower end of the piston is provided with a cylinder shaft that penetrates the cylinder end cover, the cylinder shaft and the supporting shaft are hollow inside and communicate with each other, a clamping sleeve is provided at the cylinder end cover on both sides of the cylinder shaft, a buckle is provided at the inner edge of the clamping sleeve, and a positioning stop is also provided at the lower end of the cylinder end cover; a positioning boss adapted to the positioning stop is provided at the upper part of the bracket, a clamping device inserted into the clamping sleeve is provided on the bracket on both sides of the positioning boss, the clamping device comprises a cylinder body, a movable part is embedded in the side wall of the cylinder body, and a clamping shaft that can push the movable part upward to protrude from the outer surface of the side wall of the cylinder body and clamp the buckle is provided inside the cylinder body. By pushing the movable part to clamp the buckle of the clamping sleeve through the clamping shaft, the cylinder shaft and the bracket can be quickly installed and fixed.

Description

Technical Field

[0001] The invention relates to the field of equipment for blowing hot filling bottles, in particular to a bottom mold device for blowing hot filling bottles. Background Art

[0002] The bottom mold device for hot-filled bottles is mainly composed of a cylinder body, a bottom mold, a piston and other parts. The cylinder body uses alternating air intake and exhaust to push the piston to reciprocate, thereby realizing the top and back of the bottom mold. The bottom mold device needs to be installed on the support device of the base. Since the cylinder needs to reciprocate up and down, it will cause a great impact force on the support device, which requires the support device to be firmly connected to the bottom mold device. Considering the productivity of current machinery, the same machine must have a certain degree of versatility to adapt to different types of bottles with varying production capacity and styles. The mold device used for bottle molding needs to be easy to remove and disassemble.

[0003] The existing bottom mold support structure includes a clamping device with a mounting hole, a locking structure is arranged in the hole of the clamping device, the clamping device is installed on the bracket, and the clamping device is slid up and down by installing a guide rail slider on the bracket, and the guide rail slider is installed on the base to support the sliding of the clamping device. The structure of the cylinder device for driving the bottom mold is that the bottom mold is installed on the upper part of the cylinder device, and a pin is arranged at the bottom of the cylinder device to be inserted into the hole of the clamping device. The cylinder device is locked on the supporting structure by the locking structure, thereby forming the bottom mold part of the entire bottle blowing mold. Due to the limited installation depth of the bottom of the cylinder, the latch can only be installed on the bottom surface of the cylinder device, which is easy to cause the latch to loosen, and the cylinder device is easy to be damaged during the up and down reciprocating motion. In addition, because the aperture size of the mounting hole needs to match the latch, it is difficult to align the latch with the mounting hole at one time during the installation process, and the installation is time-consuming and inconvenient. Summary of the invention

[0004] The invention provides a bottom mold device for blowing and hot filling bottles, which has the advantages of simple structure, stable operation and quick and convenient installation.

[0005] The bottom mold device for blowing and hot filling bottles described in the present invention comprises a cylinder device and a bracket with a bottom mold installed on the top, the cylinder device comprises a cylinder body, a cylinder end cover at the bottom of the cylinder body and a piston that reciprocates inside the cylinder body, the upper part of the piston is fixed with a heating body for heating the bottom mold through a supporting shaft, the lower end of the piston is provided with a cylinder shaft that passes through the cylinder end cover, the cylinder shaft and the supporting shaft are hollow inside and connected to each other, clamping sleeves are provided at the cylinder end covers on both sides of the cylinder shaft, buckles are provided on the inner edge of the clamping sleeves, and a positioning stop is also provided at the lower end of the cylinder end cover; a positioning boss adapted to the positioning stop is provided on the upper part of the bracket, and clamping devices inserted into the clamping sleeve are provided on the brackets on both sides of the positioning boss, the clamping device comprises a cylinder body, a movable part is embedded in the side wall of the cylinder body, and a clamping shaft that can push the movable part upward to protrude from the outer surface of the side wall of the cylinder body and clamp the buckle is provided inside the cylinder body.

[0006] In the bottom mold device for blowing and heating bottles, the cylinder shaft passes through the cylinder end cover and is connected to the inside of the support column that supports and fixes the heating body. The wire can be introduced through the inside of the cylinder shaft and connected to the heating body, which makes full use of the internal space of the cylinder device and prevents the wire from being exposed to the outside of the cylinder device and corroded or torn off during operation. The positioning stop provided at the lower end of the cylinder end cover cooperates with the positioning boss provided at the upper end of the bracket, so that the cylinder device and the bracket can be quickly positioned, and the cylinder device can be conveniently and accurately installed on the bracket. At the same time, the clamping sleeve is also inserted into the clamping device. At this time, it is only necessary to lift the clamping shaft to push the movable part to clamp the protrusion of the clamping sleeve, so that the cylinder device can be firmly fixed on the bracket. The present invention has a simple structure, and the cylinder shaft and the bracket can be quickly installed and fixed by pushing the movable part to clamp the buckle of the clamping sleeve through the clamping shaft, which is convenient, fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The present invention is a schematic diagram of the structure of a bottom mold device for blowing hot filling bottles.

[0008] Figure 2 It is a schematic diagram of the cylinder device structure.

[0009] Figure 3 A schematic diagram of the clamping device structure.

[0010] Figure 4 for Figure 2 Bottom view of the middle cylinder assembly. DETAILED DESCRIPTION

[0011] like Figure 1-4As shown, a bottom mold device for blowing hot filling bottles comprises a cylinder device 2 with a bottom mold 1 mounted on the top and a bracket 3. The cylinder device comprises a cylinder body 21, a cylinder end cover 22 at the bottom of the cylinder body and a piston 23 that reciprocates inside the cylinder body. A heating body 25 that heats the bottom mold is fixed to the upper part of the piston through a support shaft 24. A cylinder shaft 4 that passes through the cylinder end cover is arranged at the lower end of the piston. The cylinder shaft and the support shaft are hollow inside and communicate with each other. The cylinder end covers on both sides of the cylinder shaft are arranged There is a clamping sleeve 5, the inner edge of the clamping sleeve is provided with a buckle 51, and the lower end of the cylinder end cover is also provided with a positioning stop 6; the upper part of the bracket 3 is provided with a positioning boss 31 adapted to the positioning stop 6, and the brackets on both sides of the positioning boss are provided with a clamping device 7 inserted into the clamping sleeve, and the clamping device includes a cylinder 71, a movable part 72 is embedded in the side wall of the cylinder, and a clamping shaft 73 is provided inside the cylinder to push the movable part upward to protrude from the outer surface of the side wall of the cylinder to clamp the buckle. After the external cam mechanism drives the bracket to reach the upper position, the left and right sides of the mold body are combined horizontally to clamp the cylinder device, so that the mold body and the bottom mold form a mold space for blowing bottles. In the bottom mold device for blowing hot filling bottles, the cylinder shaft penetrates the cylinder end cover and is connected to the inside of the support column supporting the fixed heating body, and the wire can be introduced through the cylinder shaft to connect with the heating body, which makes full use of the internal space of the cylinder device and avoids the wire being exposed to the outside of the cylinder device during operation and being corroded or torn off. By matching the positioning stop provided at the lower end of the cylinder end cover with the positioning boss provided at the upper end of the bracket, the cylinder device and the bracket can be quickly positioned, and the cylinder device can be conveniently and accurately installed on the bracket. At the same time, the clamping sleeve is also inserted into the clamping device. At this time, the cylinder device can be firmly fixed on the bracket by only lifting the clamping shaft to push the movable part to clamp the protrusion of the clamping sleeve. The present invention has a simple structure, and the installation and fixation of the cylinder shaft and the bracket can be quickly completed by pushing the movable part to clamp the buckle of the clamping sleeve through the clamping shaft, which is convenient, fast and efficient.

[0012] The bottom mold device for blowing hot filling bottles, the bottom of the clamping shaft 73 is connected to the cylinder, and the movable part 72 is pushed up and down by the cylinder. The bottom of the clamping shaft can also be connected to the motor to realize the up and down movement of the clamping shaft, and the movable part can be pushed upward to clamp the buckle and keep it clamped and fixed. When it needs to be disassembled, the clamping shaft can be moved downward by the cylinder or motor, and the movable part can be loosened, so that the cylinder device can be easily disassembled from the bracket.

[0013] In the bottom mold device for blowing hot filling bottles, an arc-shaped protrusion is arranged on the top of the clamping shaft 73. The protrusion at the top of the arc can better push out the movable part, prevent the clamping shaft and the movable part from getting stuck, and cause the clamping shaft to be unable to push out the movable part to clamp the buckle of the clamping sleeve.

[0014] In the bottom mold device for hot-filled bottles, the movable member 72 is a steel ball. The surface of the steel ball is arc-shaped, which can be easily pushed out by the clamping shaft. When disassembly is required, the steel ball can also roll back to its original position without the support of the clamping shaft, and the buckle is no longer stuck, so the cylinder device can be quickly disassembled from the bracket.

[0015] The bottom mold device for hot-filled bottles has grooves 74 vertically arranged on both side walls of the clamping device 7, and springs 75 are arranged in the grooves. The top of the spring abuts against the bracket. When the cylinder device is installed on the bracket, the bracket pushes the cylinder device downward and the spring is compressed to press against the bracket. When the cylinder device needs to be removed from the bracket, after the clamping shaft releases the movable part against the buckle, due to the restoring elastic force of the spring, an upward force is applied to the bracket, and the edge of the bracket in contact with the clamping device pushes the clamping sleeve upward at the same time, which can push the movable part back into the cylinder body, and the cylinder device can be further quickly removed from the bracket.

Claims

1. A bottom mold device for blowing hot-filled bottles, characterized in that: The invention comprises a cylinder device (2) with a bottom mold (1) installed on the top and a bracket (3), the cylinder device comprising a cylinder body (21), a cylinder end cover (22) at the bottom of the cylinder body and a piston (23) that performs reciprocating motion inside the cylinder body, the upper part of the piston is fixed with a heating body (25) that heats the bottom mold through a support shaft (24), the lower end of the piston is provided with a cylinder shaft (4) that passes through the cylinder end cover, the cylinder shaft and the support shaft are hollow inside and are connected to each other, the cylinder end covers located on both sides of the cylinder shaft are provided with clamping sleeves (5), the inner edge of the clamping sleeves is provided with buckles (51), and the lower end of the cylinder end cover is also provided with a positioning stopper (6); the upper part of the bracket (3) is provided with a stopper (51) that is connected to the positioning stopper (6) An adaptable positioning boss (31) is provided on the brackets on both sides of the positioning boss with a clamping device (7) inserted into the clamping sleeve, the clamping device comprising a cylinder (71), a movable part (72) embedded in the side wall of the cylinder, a clamping shaft (73) which can push the movable part upward to protrude from the outer surface of the side wall of the cylinder and clamp the buckle, an arc-shaped protrusion is provided on the top of the clamping shaft (73), the movable part (72) is a steel ball, grooves (74) are vertically provided on the two side walls of the clamping device (7), a spring (75) is provided in the groove, the top of the spring is against the bracket, when the cylinder device is installed on the bracket, the bracket pushes the cylinder device downward and the spring is compressed to press against the bracket.

2. The bottom mold device for hot-filled bottles according to claim 1, characterized in that: The bottom of the clamping shaft (73) is connected to a cylinder, and the movable part (72) is pushed up and down by the cylinder.

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