Pressure booster mechanism of injection blow molding machine

Abstract

The invention discloses a pressurizing mechanism of an injection-blowing machine, comprising a pressure source, a pressure transmission rod, and a mounting seat arranged below the pressure source, wherein an avoidance hole for accommodating an upper section of the pressure transmission rod is opened on the output portion of the pressure source, a left pad block and a right pad block are movably provided on the mounting seat, and when the left pad block and the right pad block are combined, the mounting hole of the pressure transmission rod is covered, and a double-headed cylinder is provided on the mounting seat, and one end of the piston rod of the double-headed cylinder is connected to the right pad block, and the other end of the piston rod is hinged on two connecting rods through a connecting pin, and a rotating shaft rotatably connected to the connecting rod is respectively provided on both sides of the piston rod on the mounting seat, and a transmission rod arranged parallel to the piston rod is movably connected to the end of the connecting rod, and a guide seat for movably embedding the transmission rod is provided on the mounting seat, and the ends of the two transmission rods are respectively connected to the left pad block, and when the cylinder piston rod extends in a direction away from the right pad block, the right pad block moves right together with the piston rod, and at the same time, the connecting rod rotates to drive the transmission rod to push the left pad block to move left, and the mounting hole of the pressure transmission rod is opened, and when the cylinder piston rod extends in a direction away from the right pad block, the left pad block and the right pad block are combined.

Description

Technical Field

[0001] The invention relates to a pressurizing mechanism of an injection-blow molding machine. Background Art

[0002] In the existing booster mechanism of the injection blow molding machine, after the upper mold and the lower mold are closed, the pressure transmission rod moves downward with the upper mold, the pressure source above presses the pressure transmission rod, and the pressure transmission rod presses the upper mold; when the mold is to be opened, the pressure transmission rod moves upward with the upper mold. This structure requires the pressure source to move every time the mold is opened, making this part of the equipment complex and the manufacturing cost high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a booster mechanism for an injection-blow molding machine with a simple and compact structure.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a booster mechanism of an injection-blowing machine, comprising a pressure source, a pressure transmission rod, and a mounting seat arranged below the pressure source, an avoidance hole for accommodating the upper section of the pressure transmission rod is opened on the output part of the pressure source, and a translation slide rail is respectively provided on both sides of the pressure transmission rod mounting hole on the mounting seat, a left pad and a right pad are movably provided on the two translation slide rails, a pressure transmission rod mounting hole for the upper end of the pressure transmission rod to pass through is provided on the mounting seat, and the left pad and the right pad cover the pressure transmission rod mounting hole when they are combined, and a double-headed cylinder is provided on the mounting seat on the right side of the right pad, and the piston rod of the double-headed cylinder is connected to the right pad at one end close to the right pad The end of the piston rod of the double-head cylinder away from the right pad is hinged with two connecting rods through a connecting pin. A rotating shaft rotatably connected to the connecting rod is provided on both sides of the piston rod on the mounting seat. The end of the connecting rod is movably connected with a transmission rod arranged parallel to the piston rod. A guide seat is provided on the mounting seat for movably embedding the transmission rod. The ends of the two transmission rods are respectively connected with the left pad. When the cylinder piston rod extends in the direction away from the right pad, the right pad moves right together with the piston rod. At the same time, the rotation of the connecting rod drives the transmission rod to push the left pad to move left. The mounting hole of the pressure transmission rod is opened. When the cylinder piston rod extends in the direction close to the right pad, the left pad and the right pad merge. The right pad is provided with an avoidance groove for avoiding the transmission rod.

[0005] As a preferred solution, T-shaped clamping blocks are provided at the ends of the two transmission rods, and a matching clamping groove is provided on the left pad.

[0006] As a preferred solution, the mounting seat is provided with a guide groove matched with the hinge pin, and the lower end of the hinge pin is inserted into the guide groove.

[0007] As a preferred solution, the cylinder body of the double-headed cylinder is provided with air ports at both ends thereof, and the mounting seat is provided with two air guide channels respectively connected with the two air ports.

[0008] The beneficial effects of the present invention are as follows: the mechanism only needs to open a avoidance hole on the output part of the pressure source to accommodate the upper part of the pressure transmission rod. When the mold is in place, the lower pressure transmission rod is just below the left pad and the right pad, and the upper pressure source is just above the left pad and the right pad. At this time, the left pad and the right pad are closed, and the upper pressure can be transmitted to the lower pressure transmission rod through the left pad and the right pad. When the mold is to be opened, the left pad and the right pad are opened, and the lower pressure transmission rod can pass through the middle gap after the left pad and the right pad are opened and move upward to complete the mold opening; the overall structure is simple and compact, which meets the pressure transmission needs during mold closing and the upward movement needs of the pressure transmission rod during mold opening, greatly reducing the complexity of the overall structure of this part, and reducing the manufacturing cost and the use space requirements.

[0009] Since the ends of the two transmission rods are provided with T-shaped clamping blocks and the left cushion block is provided with matching clamping grooves, the installation is convenient and the connection is reliable.

[0010] Since the right pad is provided with an avoidance groove for avoiding the transmission rod, the overall structure is more compact.

[0011] Since the mounting seat is provided with a guide groove matched with the hinge pin, the lower end of the hinge pin is inserted into the guide groove, which further makes the overall structure more compact.

[0012] Since the cylinder body of the double-headed cylinder is provided with air ports at both ends respectively, the mounting seat is provided with two air guide channels respectively connected with the two air ports, further making the overall structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a schematic structural diagram of the present invention in which the installation opening of the medium pressure transmission rod is covered.

[0015] Figure 3 It is a schematic structural diagram of the present invention in which the installation hole of the medium pressure transmission rod is opened.

[0016] Figures 1 to 3 Middle: 1. Mounting seat, 2. Cylinder body, 3. End cover, 4. Piston rod, 5. Connecting pin, 6. Bearing, 7. Connecting rod, 8. Rotating shaft, 9. Rotating shaft, 10. Side pin, 11. Transmission rod, 12. Left pad, 13. Right pad, 14. Guide column. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1-3As shown, a booster mechanism of an injection-blowing machine includes a pressure source, a pressure transmission rod, and a mounting seat 1 arranged below the pressure source. An avoidance hole for accommodating the upper section of the pressure transmission rod is opened on the output part of the pressure source. The mounting seat 1 is provided with translational slide rails on both sides of the pressure transmission rod mounting hole. A left pad 12 and a right pad 13 are movably provided on the two translational slide rails, and a pair of guide pillars 14 are movably inserted between the left pad 12 and the right pad 13. The mounting seat 1 is provided with a pressure transmission rod mounting hole for the upper end of the pressure transmission rod to pass through. The left pad 12 and the right pad 13 cover the pressure transmission rod mounting hole when they are combined. A double-headed cylinder is provided on the mounting seat 1 on the right side of the right pad 13. The double-headed cylinder includes a cylinder body 2, and end covers 3 are provided on both sides of the cylinder body 2. Both ends of the piston rod 4 pass through the end covers 3 on both sides. The end of the piston rod 4 of the double-headed cylinder close to the right pad 13 is connected to the right pad 13, and the end of the piston rod 4 of the double-headed cylinder away from the right pad 13 is hinged to two connecting rods 7 through a connecting pin 5 and a bearing 6 sleeved on the hinge pin. The mounting seat 1 is provided with two connecting rods 7 on both sides of the piston rod 4, which rotate with the connecting rod 7. The connected rotating shafts 8 and 9, the end of the connecting rod 7 is provided with a waist-shaped hole, and a side pin 10 is movably inserted in the waist-shaped hole. The side pin 10 is hinged to the end of the transmission rod 11 arranged parallel to the piston rod 4. The mounting seat 1 is provided with a guide seat for movably embedding the transmission rod 11. The ends of the two transmission rods 11 are respectively connected to the left pad 12. When the cylinder piston rod 4 extends in the direction away from the right pad 13, the right pad 13 moves to the right together with the piston rod 4. At the same time, the connecting rod 7 rotates to drive the transmission rod 11 to push the left pad 12 to move to the left. The pressure transmission rod mounting hole is opened. When the cylinder piston rod 4 extends in the direction close to the right pad 13, the left pad 12 and the right pad 13 merge.

[0019] The mounting seat 1 is provided with rotating shafts rotatably connected to the connecting rod 7 on both sides of the piston rod 4, and the end of the connecting rod 7 is movably connected to a transmission rod 11 arranged parallel to the piston rod 4, and the right pad 13 is provided with an escape groove for escaping the transmission rod 11. T-shaped clamping blocks are provided at the ends of the two transmission rods 11, and a matching clamping groove is provided on the left pad 12.

[0020] The mounting seat 1 is provided with a guide seat for movably embedding a transmission rod 11, and the ends of the two transmission rods 11 are respectively connected to the left pad 12. When the cylinder piston rod 4 extends in a direction away from the right pad 13, the right pad 13 moves right together with the piston rod 4, and at the same time, the connecting rod 7 rotates to drive the transmission rod 11 to push the left pad 12 to move left. The mounting hole of the pressure transmission rod is opened, and when the cylinder piston rod 4 extends in a direction away from the right pad 13, the left pad 12 and the right pad 13 are merged.

[0021] The above-mentioned embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A pressurizing mechanism of an injection blow molding machine, comprising a pressure source, a pressure transmission rod, and a mounting seat arranged below the pressure source, characterized in that: The output part of the pressure source is provided with an avoidance hole for accommodating the upper section of the pressure transmission rod, and the mounting seat is provided with translation slide rails on both sides of the pressure transmission rod mounting hole, and a left pad and a right pad are movably provided on the two translation slide rails. The mounting seat is provided with a pressure transmission rod mounting hole for the upper end of the pressure transmission rod to pass through, and the left pad and the right pad cover the pressure transmission rod mounting hole when combined, and a double-headed cylinder is provided on the mounting seat on the right side of the right pad, and the end of the piston rod of the double-headed cylinder close to the right pad is connected to the right pad, and the end of the piston rod of the double-headed cylinder away from the right pad is hinged with two connecting rods through a connecting pin. The mounting seat is provided with rotating shafts rotatably connected to the connecting rod on both sides of the piston rod, and the end of the connecting rod is movably connected with a transmission rod arranged parallel to the piston rod. The mounting seat is provided with a guide seat for movably embedding the transmission rod, and the two ends of the transmission rod are respectively connected with the left pad. When the cylinder piston rod extends in the direction away from the right pad, the right pad moves right together with the piston rod, and the connecting rod rotates to drive the transmission rod to push the left pad to move left. The mounting hole of the pressure transmission rod is opened, and when the cylinder piston rod extends in the direction close to the right pad, the left pad and the right pad are merged; the right pad is provided with an avoidance groove for avoiding the transmission rod.

2. A pressurizing mechanism for an injection-blow molding machine according to claim 1, characterized in that: The ends of the two transmission rods are provided with T-shaped clamping blocks, and the left pad is provided with a matching clamping groove.

3. A pressurizing mechanism for an injection-blow molding machine according to claim 1, characterized in that: The mounting seat is provided with a guide groove matched with the hinge pin, and the lower end of the hinge pin is inserted into the guide groove.

4. A booster mechanism for an injection blow molding machine according to any one of claims 1 to 3, characterized in that: The cylinder body of the double-headed cylinder is provided with air ports at both ends, and the mounting seat is provided with two air guide channels respectively connected with the two air ports.

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