Blowing needle equipment of blow molding machine

Abstract

The utility model belongs to the technical field of blow molding equipment, and particularly relates to blow molding machine blowing needle equipment which comprises a base, a plurality of supporting rods, a rotating disc and a top plate, the supporting rods are fixedly installed on the lower side of the top plate, the base is fixedly installed among the supporting rods, the rotating disc is rotatably installed on the upper side of the base, and a plurality of long openings are formed in the upper side of the rotating disc. Two molds are slidably assembled in each long opening, guide rods are fixedly arranged on the lower sides of the molds, a first guide groove and a second guide groove are formed in the upper side of the base, a connecting column is fixedly arranged between the upper side wall of the supporting column and the lower side wall of the top plate, and a blowing needle is slidably assembled on the upper side of the rotating disc. The multiple sets of molds are driven by the rotating disc to rotate, the molds on the inner side and the outer side are separated and attached through the guide rods under the guiding action of the first guide grooves and the second guide grooves, blow molding is conducted on the molds synchronously through the blowing needles, the blow molding speed is greatly increased, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blow molding equipment, and particularly relates to a blow pin device for a blow molding machine. Background Art

[0002] The hollow blow molding machine is a commonly used blow molding device. During the blow molding process of the hollow blow molding machine: the heated plastic solid particles are extruded through the machine head to obtain a tubular plastic preform, and then the tubular plastic preform is placed in the mold clamping mechanism. After the mold clamping mechanism clamps the mold, the tubular plastic preform is pressed into a bottle preform. Then, the mold clamping mechanism moves the bottle preform to the blow molding station below the blow pin device. Then, the blow pin device blows compressed air into the bottle preform located at the blow molding station, so that the bottle preform is blown and expanded to tightly adhere to the inner wall of the mold cavity of the mold clamping mechanism to form a bottle. The bottle mouth of the blow molded bottle will have a circle of bottle mouth flash. In the current blow molding process, mostly a set of molds is used for production, and the production efficiency is slow. Therefore, a blow pin device for a blow molding machine is needed to solve the above problems. Summary of the Utility Model

[0003] The purpose of the utility model is: to provide a blow pin device for a blow molding machine, which drives several groups of molds to rotate through a rotating disk. The inner and outer molds are separated and fitted under the guiding action of a guiding rod in a first guiding groove and a second guiding groove, and the blow pin synchronously blows the molds, greatly improving the blow molding rate and production efficiency.

[0004] To achieve the above technical purpose, the technical scheme adopted by the utility model is as follows:

[0005] A blow pin device for a blow molding machine, including a base, several support rods, a rotating disk and a top plate. Several of the support rods are fixedly installed on the lower side of the top plate, and the several support rods are evenly distributed in a circle. The base is fixedly installed in the middle of the several support rods. The rotating disk is rotatably installed on the upper side of the base. A support column is fixedly provided on the upper side of the base, and the upper side wall of the support column abuts against the lower side wall of the rotating disk. Several long openings distributed in a circle are provided on the upper side of the rotating disk. Two symmetrically distributed molds are slidably assembled in each of the several long openings. Guide rods are fixedly provided on the lower sides of the several molds. A first guiding groove matching with several of the guide rods close to the support column is opened on the upper side of the base. A second guiding groove matching with several of the guide rods far from the support column is opened on the upper side of the base. A circular hole is opened on the upper side of the rotating disk. A connecting column is fixedly provided between the upper side wall of the support column and the lower side wall of the top plate. A blow pin is slidably assembled on the upper side of the rotating disk. A control component matching with the blow pin is provided on the upper side of the base. A driving component matching with the rotating disk is provided on the lower side of the top plate.

[0006] The control component includes a square tube fixedly arranged on the side wall of the support column. A long groove communicating with the square tube is formed in the support column. A square plate is slidably assembled in the square tube. A spring is fixedly arranged between the side wall of the square plate and the side wall of the long groove. A rack matching the square tube is fixedly arranged on the side wall of the square plate. An arc rod matching the mold is fixedly arranged on the side away from the support column of the rack. A first gear matching the rack is rotatably assembled in the square tube. A vertical cavity communicating with the inside of the square tube is formed in the connecting column. A screw rod is concentrically and fixedly arranged on the upper side of the first gear. A vertical opening is formed in the side wall of the connecting column. A lifting plate matching the screw rod is slidably assembled on the upper side of the connecting column. The blowing needle is fixedly installed on the lower side of the lifting plate.

[0007] The driving member includes a toothed ring concentrically and fixedly arranged on the upper side of the rotating disc and matching the connecting column. A motor is installed on the side wall of the connecting column. A second gear matching the toothed ring is concentrically and fixedly arranged on the output shaft of the motor.

[0008] Sliding grooves are formed on both side walls of several long openings. Two rollers matching the sliding grooves are rotatably assembled on the left and right side walls of several molds.

[0009] A blanking port is formed on the upper side of the base.

[0010] In the utility model, the rotating disc drives several groups of molds to rotate. The inner and outer molds are separated and fitted under the guiding action of the guiding rod in the first guiding groove and the second guiding groove. The blowing needle blows the molds synchronously, greatly improving the blowing rate and production efficiency. Description of the Drawings

[0011] The utility model can be further illustrated by the non-limiting embodiments given in the drawings.

[0012] Figure 1 It is a schematic structural diagram of an embodiment of a blowing needle device of a blow molding machine of the utility model;

[0013] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of a blowing needle device of a blow molding machine of the utility model Figure 1 ;

[0014] Figure 3 It is Figure 2 the enlarged structural diagram at A in

[0015] Figure 4 It is a schematic cross-sectional structure diagram of an embodiment of a blowing needle device of a blow molding machine of the utility model Figure 2 ;

[0016] Figure 5 It is Figure 4Schematic diagram of the enlarged structure at B in the [Chinese context];

[0017] Figure 6 Schematic cross-sectional structure of an embodiment of the blow needle device of a blow molding machine of the present utility model Figure 3 。

[0018] The main component symbols are explained as follows:

[0019] Base 1, support rod 10, rotating disk 11, top plate 12, support column 13, long opening 14, mold 15, guide rod 16, first guide groove 17, second guide groove 18, connecting column 19, blow needle 20, square tube 21, square plate 22, spring 23, rack 24, arc rod 25, first gear 26, screw 27, lifting plate 28, gear ring 30, motor 31, second gear 32, sliding groove 34, roller 35, blanking port 40. Specific implementation manner

[0020] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0021] As Figures 1-6 shown, a blow needle device of a blow molding machine of the present utility model includes a base 1, a plurality of support rods 10, a rotating disk 11 and a top plate 12. A plurality of support rods 10 are all fixedly installed on the lower side of the top plate 12, and the plurality of support rods 10 are evenly distributed in a circle. The base 1 is fixedly installed in the middle of the plurality of support rods 10. The rotating disk 11 is rotatably installed on the upper side of the base 1. A support column 13 is fixedly provided on the upper side of the base 1, and the upper side wall of the support column 13 abuts against the lower side wall of the rotating disk 11. A plurality of circumferentially distributed long openings 14 are provided on the upper side of the rotating disk 11. Two symmetrically distributed molds 15 are slidably assembled in each of the plurality of long openings 14. Guide rods 16 are fixedly provided on the lower sides of the plurality of molds 15. A first guide groove 17 matching the plurality of guide rods 16 close to the support column 13 is opened on the upper side of the base 1. A second guide groove 18 matching the plurality of guide rods 16 far from the support column 13 is opened on the upper side of the base 1. A circular hole is opened on the upper side of the rotating disk 11. A connecting column 19 is fixedly provided between the upper side wall of the support column 13 and the lower side wall of the top plate 12. A blow needle 20 is slidably assembled on the upper side of the rotating disk 11. A control assembly matching the blow needle is provided on the upper side of the base 1. A driving member matching the rotating disk 11 is provided on the lower side of the top plate 12;

[0022] When the utility model is in use, the rotating disc 11 rotates driven by a driving member. When the rotating disc 11 rotates, it drives several molds 15 to rotate. Two matching molds 15 are separated and fitted under the action of the lower guide rod 16, the first guide groove 17 and the second guide groove 18 respectively. When the rotating disc 11 drives the two molds 15 to rotate to the left side, the two molds 15 are fitted together to clamp the raw material between the two molds 15. The rotating disc 11 drives the two molds 15 to continue rotating, so that the molds 15 with raw materials rotate to the lower side of the needle 20. The needle 20 is lowered through the control component to blow-mold the raw materials in the two molds 15. After the blow molding is completed, the rotating disc 11 continues to drive the molds 15 to rotate. When the two blow-molded molds 15 rotate to the right side, the two molds 15 are separated under the drive of the first guide groove 17 and the second guide groove 18, so that the finished products in the two molds 15 are discharged. At the same time, other groups of molds 15 are driven by the rotating disc 11 to synchronously perform the same above operations, making the production efficiency of the product faster;

[0023] The utility model drives several groups of molds to rotate through a rotating disc. The inner and outer molds are separated and fitted under the guiding action of the guide rod in the first guide groove and the second guide groove, and the blowing needle blows the molds synchronously, greatly improving the blow molding rate and production efficiency.

[0024] The control component includes a square cylinder 21 fixedly arranged on the side wall of the support column 13. A long groove communicating with the square cylinder 21 is opened in the support column 13. A square plate 22 is slidably assembled in the square cylinder 21. A spring 23 is fixedly arranged between the side wall of the square plate 22 and the side wall of the long groove. A rack 24 matching the square cylinder 21 is fixedly arranged on the side wall of the square plate 22. An arc-shaped rod 25 matching the mold 15 is fixedly arranged on the side of the rack 24 away from the support column 13. A first gear 26 matching the rack 24 is rotatably assembled in the square cylinder 21. A vertical cavity communicating with the inside of the square cylinder 21 is opened in the connecting column 19. A screw rod 27 is concentrically fixedly arranged on the upper side of the first gear 26. A vertical opening is opened on the side wall of the connecting column 19. A lifting plate 28 matching the screw rod 27 is slidably assembled on the upper side of the connecting column 19. The blowing needle 20 is fixedly installed on the lower side of the lifting plate 28;

[0025] When the utility model is not in use and the mold 15 does not abut against the arc-shaped rod 25, under the elastic action of the spring 23, the square plate 22 drives the rack 24 away from the long groove, and the distance between the arc-shaped rod 25 and the square cylinder 21 is the farthest. Synchronously, the lifting plate 288 is located above the vertical opening, facilitating the normal use of the device;

[0026] When the utility model is in use, one side of the mold 15 close to the support column 13 abuts against the arc-shaped rod 25. Driven by the rotating disk 11, the mold 15 pushes the arc-shaped rod 25 to slide towards the support column 13. The arc-shaped rod 25 synchronously drives the rack 24 to slide in the square tube 21. The rack 24 synchronously drives the square plate 22 to move, and the square plate 22 compresses the spring 23. The movement of the rack 24 drives the first gear 26 to rotate. The first gear 26 synchronously drives the screw rod 27 to rotate. The screw rod 27 synchronously drives the lifting plate 28 to descend. The lifting plate 28 drives the needle head 20 to descend, so that the needle head 20 blows the raw materials in the two molds 15. By the rotation of the rotating disk 11, the rotation of the mold 15 is synchronously driven, and at the same time, the descent of the needle head 20 is driven, reducing the use of electrical components in this device and reducing the production cost.

[0027] The driving member includes a gear ring 30 concentrically fixed on the upper side of the rotating disk 11 and matching with the connecting column 19. A motor 31 is installed on the side wall of the connecting column 10, and an output shaft of the motor 31 is concentrically fixed with a second gear 32 matching with the gear ring 31. When the utility model is in use, the output shaft of the motor 31 drives the second gear 32 to rotate. The second gear 32 synchronously drives the gear ring 31 to rotate. The gear ring 31 drives the rotating disk 11 to rotate, ensuring the smooth use of this device.

[0028] Sliding grooves 34 are opened on both side walls of several long openings 14. Two rollers 35 matching with the sliding grooves 34 are rotatably assembled on the left and right side walls of several molds 15; it is convenient for the mold 15 to slide in the long opening 14.

[0029] A material discharge port 40 is opened on the upper side of the base 1; it is convenient for this device to discharge materials.

[0030] The above embodiments only exemplarily illustrate the principle and its effects of the utility model, rather than being used to limit the utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A blow molding machine needle blowing device, comprising a base, a plurality of support rods, a rotating disk and a top plate, characterized in that: The cam is fixedly mounted on the bottom of the top plate, the cam being arranged in a circle with the top plate being arranged on the bottom of the top plate, the cam being arranged on the bottom of the top plate and the cam being arranged on the bottom of the top plate, the cam being arranged on the bottom of the top plate and the cam being arranged on the bottom of the top plate.

2. A blow molding machine needle blowing device according to claim 1, characterized in that: The control component includes a square tube fixedly provided on the side wall of the support column, a long groove connected with the square tube is opened in the support column, a square plate is slidably installed in the square tube, a spring is fixed between the side wall of the square plate and the side wall of the long groove, a rack matching the square tube is fixedly provided on the side wall of the square plate, an arc-shaped rod matching the mold is fixedly provided on the side of the rack away from the support column, a first gear matching the rack is rotatably installed in the square tube, a vertical cavity connected with the inside of the square tube is opened in the connecting column, a screw is concentrically fixed on the upper side of the first gear, a vertical opening is opened in the side wall of the connecting column, a lifting plate matching the screw is slidably installed on the upper side of the connecting column, and the blowing needle is fixedly installed on the lower side of the lifting plate.

3. A blow molding machine needle blowing device according to claim 1, characterized in that: The driving member includes a gear ring that is coaxially fixed on the upper side of the rotating disk and matches the connecting column, a motor is installed on the side wall of the connecting column, and a second gear that matches the gear ring is coaxially fixed on the output shaft of the motor.

4. A blow molding machine needle blowing device according to claim 1, characterized in that: Both side walls of the plurality of long openings are provided with sliding grooves, and both left and right side walls of the plurality of molds are rotatably equipped with two rollers matching the sliding grooves.

5. A blow molding machine needle blowing device according to claim 1, characterized in that: A feeding opening is provided on the upper side of the base.

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