CN208930693U - A kind of blow needle screwing-out device - Google Patents

Abstract

The utility model discloses a kind of blow needle screwing-out devices, are related to blow molding technology field, including pedestal, power motor, active plate, elastic parts, follower plate and blow needle oil cylinder；Driving gear is fixedly connected on the output shaft of power motor；Mounting groove is offered in pedestal, active plate is arranged in mounting groove, and active plate is threadedly coupled with driving gear；Follower plate is also disposed in mounting groove, and is connected between active plate and follower plate by elastic parts；Rotation preventive mechanism is provided in pedestal, for preventing active plate from rotating with the output shaft of power motor；Blow needle oil cylinder slidably extends through pedestal and active plate, and power motor is fixedly connected with follower plate；When being blow molded using the present embodiment blow needle screwing-out device, if the mold that replacement is different, during adjusting blow needle position, if deviation occurs in blow needle position, when blow needle slightly screws out, buffer function is played in buffer spring contraction, and blow needle is made not puncture mold.

Description

A kind of blow needle screwing-out device

Technical field

The utility model relates to blow molding technology field, specially a kind of blow needle screwing-out device.

Background technique

The working principle of blow moulding machine is: by the way that blow needle to be inserted into thermoplastic parison, to the thermoplastic parison of softening Middle inflation makes it cling to the cooling surface of closed mould, by the parison solidification of inflation, forms hollow plastic product.With with The continuous improvement that family requires, a blow moulding machine need to meet different mold production requirements, and the length that blow needle needs to stretch out is not yet Together, it is therefore desirable to adjust blow needle extension elongation using blow needle screwing-out device.

The utility model patent of Publication No. CN204894486U proposes a kind of blow moulding machine blow needle lifting regulating mechanism, packet Pedestal, power motor, driven gear and blow needle oil cylinder are included, driven gear is arranged in pedestal, and power motor and driven gear Transmission connection；Blow needle oil cylinder slidably passes through pedestal, and driven gear and blow needle oil cylinder are threadedly coupled；Being provided in pedestal prevents The rotation preventive mechanism of blow needle oil cylinder rotation.Due to needing often to change blow needle position in production, if the position of blow needle slightly deviation, Blow needle can directly insert bad mold, influence the quality of product.

Utility model content

The purpose of this utility model is to provide a kind of blow needle screwing-out devices, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions: a kind of blow needle screwing-out device, including pedestal, Power motor, active plate, elastic parts, follower plate and blow needle oil cylinder；Spiral shell is fixedly connected on the output shaft of the power motor Line loop bar；Offer mounting groove in the pedestal, the active plate is arranged in the mounting groove, and the active plate with it is described Threaded sleeve rod is threadedly coupled；The follower plate is also disposed in the mounting groove, and between the active plate and the follower plate It is connected by the elastic parts；It is provided with rotation preventive mechanism in the pedestal, for preventing the active plate with the power horse The output shaft rotation reached；The blow needle oil cylinder slidably extends through the pedestal and the active plate, and the power motor is solid Surely the follower plate is connected.

Further, the shape of the active plate and the follower plate and the pedestal match, the active plate with it is described The surrounding of follower plate is close to the inner wall of the pedestal；And the power motor and the blow needle oil cylinder are respectively positioned on the active plate Eccentric part, prevent active plate and follower plate from rotating.

Further, the rotation preventive mechanism includes spline, the first keyway and the second keyway；The spline is arranged in the peace Tankage inner wall, and extend along the axial line of the blow needle oil cylinder；First keyway is provided with the active plate side, and described Two keyways are provided with the follower plate side；First keyway and second keyway are slidably matched with the spline company It connects.

Further, the elastic parts includes buffer spring, and the both ends of the buffer spring are separately connected the active Plate and the follower plate.

Further, the elastic parts further includes cylinder, piston and piston rod；Plunger shaft is offered in the cylinder, The piston is arranged in the plunger shaft, and described piston rod one end is fixedly connected on the piston, and the other end stretches out the gas Cylinder, the piston rod and the cylinder are separately connected the active plate and the follower plate；The piston is by the plunger shaft It is divided into two parts, and is only connected to by airtube between two parts；Metal cover board, the metal cover are provided in the airtube Plate covers an intercommunicating pore of the airtube Yu the plunger shaft, and the metal cover board is provided with far from the side of intercommunicating pore Outwardly extending support rod, the support rod slidably run through the cylinder, metal cover board phase described in the airtube inner wall Pair side be provided with electromagnet；Support spring is arranged on the support rod, the support spring connects the metal cover board And the airtube inner wall.

Further, the pedestal includes bottom plate and gland, and the mounting groove is between the bottom plate and the gland.

Compared with prior art, the utility model has the beneficial effects that

1. be blow molded using the present embodiment blow needle screwing-out device, if the mold that replacement is different, in adjustment blow needle position During, if deviation occurs in blow needle position, when blow needle slightly screws out, buffer function is played in buffer spring contraction, makes blow needle Mold will not be punctured.

2. after adjusting blow needle position, if being produced in batches later using same mold, electromagnet, metal can be closed Cover board seals the intercommunicating pore of airtube and plunger shaft under the action of support spring, between fixed follower plate and active plate away from From compressing buffer spring can not, blow needle is easier to enter in mold.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the enlarged drawing in Fig. 1 at A.

In appended drawing reference: 1- pedestal；11- bottom plate；12- gland；13- mounting groove；2- power motor；21- threaded sleeve rod；3- Active plate；4- elastic parts；41- buffer spring；42- cylinder；421- upper piston slot；422- lower piston slot；423- airtube； 43- piston；44；Piston rod；45 metal cover boards；46- support rod；47- electromagnet；48- support spring；5- follower plate；6- blow needle Oil cylinder.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model proposes a kind of blow needle screwing-out device, as shown in Figure 1, the blow needle screwing-out device include pedestal 1, Power motor 2, active plate 3, elastic parts 4, follower plate 5 and blow needle oil cylinder 6.Pedestal 1 includes bottom plate 11 and gland 12, bottom plate 11 Mounting groove 13 is offered between gland 12, for installing other assemblies, and bottom plate 11 and gland 12 seal mounting groove 13.It is anti- Only enter dust in mounting groove 13 to impact the normal work of internal component.

Power motor 2 is mounted on bottom plate 11, and the output shaft of power motor 2 protrudes into mounting groove 13.Power motor 2 Fixing sleeve is equipped with threaded sleeve rod 21 on output shaft, when power motor 2 is opened, the output shaft rotation of power motor 2, to drive Threaded sleeve rod 21 rotates.Active plate 3 is mounted in mounting groove 13, and the shape of active plate 3 and mounting groove 13 match, and make actively The surrounding of plate 3 is close to 13 inner sidewall of mounting groove.Eccentric part on active plate 3 offers internal thread hole, and active plate 3 passes through Internal thread hole is threadedly coupled with threaded sleeve rod 21.When threaded sleeve rod 21 rotates, since the surrounding of active plate 3 is tightly attached to installation On the inner sidewall of slot 13 and threaded sleeve rod 21 is located at the eccentric part of active plate 3, so that active plate can not be around the axis of threaded sleeve rod 21 The rotation of heart line, active plate 3 move in mounting groove 13 under the promotion of screw thread.Follower plate 5 is also mounted in mounting groove 13, and from The shape of movable plate 5 also matches with the shape of mounting groove 13, and the surrounding of follower plate 5 is tightly attached on the inner wall of mounting groove 13.Blow needle oil Cylinder 6 is fixedly connected on follower plate 5, and blow needle oil cylinder 6 slidably extends through bottom plate 11, active plate 3 and gland 12.Power motor 2 Output shaft slidably extend through follower plate 5, connected between follower plate 5 and active plate 3 by elastic parts 4.

As shown in Figures 1 and 2, elastic parts 4 includes buffer spring 41 and cylinder piston system.Buffer spring 41 is located at master Between movable plate 3 and follower plate 5, and the both ends of buffer spring 41 are separately connected active plate 3 and follower plate 5.Cylinder piston system Be arranged between active plate 3 and follower plate 5, cylinder piston system include cylinder 42, piston 43, piston rod 44, metal cover board 45, Support rod 46, electromagnet 47 and support spring 48.Cylinder 42 is fixedly connected on active plate 3, and offers piston in cylinder 42 Chamber, piston 43 are arranged in plunger shaft, and plunger shaft is divided into 422 two parts of upper piston chamber 421 and lower piston chamber.In cylinder 42 also Airtube 423 is offered, upper piston chamber 421 is only connected to by airtube 423 with lower piston chamber 432.Piston rod 44 is slideably It is fixedly connected with piston 43 through one end of cylinder 42, and piston rod 44, the other end is fixedly connected with follower plate 5.Metal cover board 45 is set It sets in airtube 423, and metal cover board 45 is completely covered by the intercommunicating pore between airtube 423 and lower piston chamber 422.Support 46 one end of bar is fixedly connected on metal cover board 45, and the other end slidably extends through and stretches out cylinder 42, and opens up on active plate 3 There is the holding tank mobile for 46 stretches out cylinder of support rod, 42 one end.Support spring 48, and support spring are arranged on support rod 26 48 one end connects metal cover board 45, and the other end connects the inner wall of airtube 423.On 423 inner wall of airtube, metal cover board 45 Electromagnet 47 is installed in opposite one side.

The application method of the utility model blow needle screwing-out device is as follows:

After the mold more renewed, start electromagnet 47, electromagnet 47 draws metal cover board 46, and metal cover board 46, which leaves, leads The connecting hole of air flue 423 and lower piston chamber 422, upper piston chamber 421 are connected to lower piston chamber 422, so that 421 He of upper piston chamber Air pressure in lower piston chamber 422 is equal, and piston 43 can move freely in cylinder 42.In order to make blow needle be directed at new mold Blow needle interface, need to adjust the position of entire blow needle screwing-out device.After adjusting good position, starts power motor 2, make thread bush Bar 21 rotates, and drives active plate 3 mobile to the direction of follower plate 5, and active plate 3 pushes follower plate 5 to move by buffer spring 41 It is dynamic, and go out blow needle oil cylinder 6.If the position inaccuracy of adjustment, when blow needle oil cylinder 6 knocks mold, buffer spring 41 is shunk, so that Blow needle oil cylinder 6 does not continue to move along, it is therefore prevented that blow needle oil cylinder 6 stabs bad mold, blows to the readjustment of operator's time enough The position of needle screwing-out device.

When blow molding is completed, reversed pneumatic power motor 2 can withdraw blow needle oil cylinder 6.If continuing to use same mould later Tool, then close electromagnet 47, and support spring 48 pushes metal cover board 45 to cover the company between airtube 423 and lower piston chamber 422 Through-hole is not turned between upper piston chamber 421 and lower piston chamber 422.Draught head move piston 43 can not in cylinder 42, from Movable plate 5 moves under the action of cylinder piston system with the movement of active plate 3.Buffer spring 41 will not be shunk, and be that blow needle is straight The blow needle interface on mold is patched, the efficiency being blow molded when improving the same mold of Reusability.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of blow needle screwing-out device, it is characterised in that: including pedestal, power motor, active plate, elastic parts, follower plate and Blow needle oil cylinder；Driving gear is fixedly connected on the output shaft of the power motor；Mounting groove is offered in the pedestal, it is described Active plate is arranged in the mounting groove, and the active plate is threadedly coupled with the driving gear；The follower plate is also provided with It is connected in the mounting groove, and between the active plate and the follower plate by the elastic parts；It is set in the pedestal It is equipped with rotation preventive mechanism, for preventing the active plate from rotating with the output shaft of the power motor；The blow needle oil cylinder is slidably Ground runs through the pedestal and the active plate, and the power motor is fixedly connected with the follower plate.

2. a kind of blow needle screwing-out device according to claim 1, it is characterised in that: the active plate and the follower plate Shape and the pedestal match, and the active plate is close to the inner wall of the pedestal with the surrounding of the follower plate；And it is described dynamic Force motor and the blow needle oil cylinder are respectively positioned on the eccentric part of the active plate, prevent active plate and follower plate from rotating.

3. a kind of blow needle screwing-out device according to claim 1, it is characterised in that: the rotation preventive mechanism includes spline, One keyway and the second keyway；The spline is arranged in the mounting groove inner wall, and extends along the axial line of the blow needle oil cylinder；Institute It states the first keyway and is provided with the active plate side, second keyway is provided with the follower plate side；First keyway And second keyway is slidably connected with the spline.

4. a kind of blow needle screwing-out device according to claim 1, it is characterised in that: the elastic parts includes buffering elastic Spring, the both ends of the buffer spring are separately connected the active plate and the follower plate.

5. a kind of blow needle screwing-out device according to claim 4, it is characterised in that: the elastic parts further include cylinder, Piston and piston rod；Plunger shaft is offered in the cylinder, the piston is arranged in the plunger shaft, described piston rod one end It is fixedly connected on the piston, the other end stretches out the cylinder, and the piston rod and the institute cylinder are separately connected the active Plate and the follower plate；The plunger shaft is divided into two parts by the piston, and is only connected to by airtube between two parts；Institute It states and is provided with metal cover board in airtube, the metal cover board cover the airtube and the plunger shaft one is connected to Hole, the metal cover board are provided with outwardly extending support rod far from the side of intercommunicating pore, and the support rod slidably runs through The cylinder, the opposite side of metal cover board described in the airtube inner wall are provided with electromagnet；It is arranged on the support rod Support spring, the support spring connect the metal cover board and the airtube inner wall.

6. a kind of blow needle screwing-out device according to claim 1, it is characterised in that: the pedestal includes bottom plate and gland, The mounting groove is between the bottom plate and the gland.