CN212242079U

CN212242079U - Injection molding and bottle blowing integrated machine for bottle body

Info

Publication number: CN212242079U
Application number: CN202020843362.8U
Authority: CN
Inventors: 王益
Original assignee: Chengdu Shunqianhe Technology Co ltd
Current assignee: Chengdu Shunqianhe Technology Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-12-29
Anticipated expiration: 2030-05-19

Abstract

The utility model relates to the technical field of bottle production, in particular to an injection molding and bottle blowing integrated machine for bottles, which comprises an injection molding device, a first mechanical arm, a transfer mechanism, a second mechanical arm and a bottle blowing production line, wherein the first mechanical arm and the second mechanical arm are both provided with a picking piece, and the picking piece is provided with a plurality of picking heads arranged in a collinear way; the transfer mechanism comprises a movably arranged carrying disc, a driving assembly for driving the carrying disc to move and a positioning row group arranged on the carrying disc, wherein the positioning row group is provided with a plurality of positioning lugs arranged in a collinear manner; a plurality of bottle base that first manipulator will mould plastics the device once only transfer to transfer mechanism, and transfer mechanism removes a plurality of bottle bases that bear to the second manipulator, and a plurality of bottle bases that the second manipulator transferred transfer the transfer mechanism once only transfer to the bottle blowing production line, realize the automation of bottle base and transfer, promote the efficiency of transferring of bottle base, and then promote the production manufacturing efficiency of bottle.

Description

Injection molding and bottle blowing integrated machine for bottle body

Technical Field

The utility model relates to a bottle production technical field especially discloses a bottle all-in-one of moulding plastics of bottle.

Background

Plastic bottles are one of the common containers, for example, most of the infusion bottles used in hospitals are plastic bottles, and in the manufacturing process of plastic bottles, a bottle blank is firstly formed by injection molding through an injection molding machine, and then the bottle blank is transferred to a bottle blowing line to be formed into a shape by blow-drawing. The transfer efficiency of the bottle blanks in the prior art is low, and the bottle blanks are easy to contact and pollute or mutually contact and cross-pollute in the transfer process, so that the requirements of actual production cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a bottle all-in-one of moulding plastics of bottle realizes the automation of bottle base and transfers, promotes the efficiency of transferring of bottle base, and then promotes the production manufacturing efficiency of bottle.

In order to achieve the purpose, the utility model discloses an injection molding and bottle blowing integrated machine for bottle bodies, which comprises an injection molding device, a first mechanical arm, a transfer mechanism, a second mechanical arm and a bottle blowing production line, wherein the first mechanical arm is used for transferring a plurality of bottle blanks injected by the injection molding device to the transfer mechanism at one time, the transfer mechanism moves the borne plurality of bottle blanks to the second mechanical arm, and the second mechanical arm transfers the plurality of bottle blanks transferred by the transfer mechanism to the bottle blowing production line at one time; the first mechanical arm and the second mechanical arm are both provided with picking pieces, each picking piece is provided with a plurality of picking heads which are arranged in a collinear manner, and the plurality of picking pieces are used for picking a plurality of bottle blanks respectively; the transfer mechanism comprises a movably arranged carrying disc, a driving assembly for driving the carrying disc to move and a positioning row group arranged on the carrying disc, wherein the positioning row group is provided with a plurality of positioning lugs arranged in a collinear way, and the positioning lugs respectively bear a plurality of bottle blanks; the bottle blanks picked up by the plurality of picking heads of the first manipulator are transferred to the plurality of positioning lugs, and the bottle blanks carried by the plurality of positioning lugs are transferred to a bottle blowing production line by the plurality of picking heads of the second manipulator.

Furthermore, the injection molding device comprises a fixed template and a movable template matched with the fixed template, the fixed template and the movable template are surrounded to form a plurality of molding cavities, the molding cavities are used for molding bottle blanks, and the molding cavities are arranged in a rectangular array; the first manipulator comprises a movable mechanical arm which is independently arranged or arranged on the injection molding device, the picking part is arranged at the tail end of the movable mechanical arm, and a plurality of picking heads of the picking part of the first manipulator are arranged in a rectangular array; the quantity of location row group is a plurality of, and a plurality of location row group parallel arrangement, the location lug of a plurality of location row groups are the rectangular array setting.

Further, the drive assembly drives the carrying disc to enable the bottle blanks carried by the positioning lugs to move along a linear track and move along a curved track.

Further, the drive assembly comprises a first support body, a shaft body arranged on the first support body in a rotating mode and a first motor used for driving the shaft body to rotate, a carrying disc is arranged on the shaft body, the first motor drives the shaft body to rotate together with the carrying disc, and transfer of bottle blanks carried by the positioning lugs of the carrying disc is achieved.

Furthermore, the second manipulator comprises a second support body, a first support plate horizontally arranged on the second support body in a sliding manner, a first driving piece used for driving the first support plate to slide, a second support plate horizontally arranged on the first support plate in a sliding manner, a first rack arranged on the second support plate, a first gear meshed with the first rack, and a second motor used for driving the first gear to rotate.

Furthermore, the second manipulator further comprises a third carrier plate vertically and slidably arranged on the second carrier plate, a second rack arranged on the third carrier plate, a second gear meshed with the second rack, and a second driving piece used for driving the second gear to rotate, the picking heads are arranged on the third carrier plate, and connecting lines among the plurality of picking heads of the second manipulator are parallel to a horizontal plane.

Furthermore, the third carrying plate is provided with a plurality of inclined grooves, the included angle between each inclined groove and the horizontal direction and the included angle between each inclined groove and the vertical direction are acute angles, the included angle between each two adjacent inclined grooves is an acute angle, and the plurality of picking heads are respectively arranged in the plurality of inclined grooves in a sliding manner; the third bearing plate is provided with a power piece and a linkage plate connected with the output end of the power piece, and the power piece drives the plurality of picking pieces to slide in the plurality of inclined grooves through the linkage plate so as to change the distance between two adjacent picking heads.

Furthermore, the positioning projection comprises a positioning column arranged on the carrying disc and a buffering ring sleeved outside the positioning column, the bottle blank is sleeved outside the positioning column, and a conical part convenient for the bottle blank to be sleeved outside the positioning column is arranged at the free end of the positioning column.

Further, the bottle blowing production line comprises a wire body, an annular chain rotatably arranged on the wire body, a third driving piece used for driving the annular chain to rotate, a heating unit and a bottle blowing unit arranged on the wire body, and a plurality of carriers arranged on the annular chain, wherein the carriers are arranged along the length direction of the annular chain, the heating unit is used for heating a plurality of bottle blanks transferred to the carriers by a second manipulator, and the bottle blowing unit is used for blowing and drawing the bottle blanks heated and softened by the heating unit into bottle bodies.

Furthermore, the bottle blowing production line is also provided with an unloading manipulator and a plurality of clamping pieces arranged at the tail end of the unloading manipulator, and the plurality of clamping pieces are used for respectively clamping the bottle blowing units borne by the plurality of carriers and blowing and pulling the molded bottles.

The utility model has the advantages that: in the manufacturing process of the bottle body, the first mechanical arm transfers a plurality of bottle blanks injected by the injection molding device to the transfer mechanism at one time, the transfer mechanism moves the borne plurality of bottle blanks to the second mechanical arm, and the second mechanical arm transfers the plurality of bottle blanks transferred by the transfer mechanism to the bottle blowing production line at one time, so that the automatic transfer of the bottle blanks is realized, the transfer efficiency of the bottle blanks is improved, and the production and manufacturing efficiency of the bottle body is further improved; the contact pollution of personnel and the cross contact pollution of each other in the bottle blank transferring process are reduced, the transferring yield of the bottle blanks is improved, and the manufacturing yield of the bottle bodies is further improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic perspective view of the transfer mechanism and the second manipulator of the present invention;

fig. 3 is a schematic perspective view of the transfer mechanism of the present invention;

FIG. 4 is a partially enlarged view of portion A of FIG. 3;

fig. 5 is a schematic perspective view of a second manipulator of the present invention;

fig. 6 is a schematic structural view of the clamping member and the bearing plate of the present invention.

The reference numerals include:

1-injection molding device 2-first manipulator 3-transfer mechanism

4-second manipulator 5-bottle blowing production line 6-picking part

7-pick-up head 8-carrying disc 9-positioning lug

11-first frame 12-shaft 13-first motor

14-rotating disc 15-second frame body 16-first carrier plate

17-first rack 18-second carrier plate 19-third carrier plate

21-positioning column 22-buffer ring 23-conical part

24-unloading manipulator 25-clamping piece 26-bearing plate

27-clamping jaw.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.

Please refer to fig. 1 to 6, the utility model discloses an injection molding and bottle blowing all-in-one machine for bottle, including injection molding device 1, first manipulator 2, transfer mechanism 3, second manipulator 4 and bottle blowing production line 5, first manipulator 2 is used for once only transferring to transfer mechanism 3 with a plurality of bottle base that injection molding device 1 moulded plastics, transfer mechanism 3 removes a plurality of bottle bases that bear to second manipulator 4, a plurality of bottle bases that second manipulator 4 will transfer mechanism 3 and transfer once only to bottle blowing production line 5, bottle blowing production line 5 is used for blowing and drawing the shaping to the bottle with the bottle base.

First manipulator 2, second manipulator 4 all dispose picking member 6, and picking member 6 has a plurality of pick heads 7 of collineation setting, and a plurality of pick heads 7 equidistant setting, a plurality of picking members 6 are used for picking a plurality of bottle bases respectively. The transfer mechanism 3 comprises a loading disc 8 movably arranged, a driving assembly used for driving the loading disc 8 to move, and a positioning row group arranged on the loading disc 8, wherein the positioning row group is provided with a plurality of positioning lugs 9 arranged in a collinear manner, and the plurality of positioning lugs 9 respectively bear a plurality of bottle blanks. The bottle blanks picked up by the plurality of picking heads 7 of the first manipulator 2 are transferred to the plurality of positioning bumps 9 at one time, and the plurality of picking heads 7 of the second manipulator 4 transfer the plurality of bottle blanks carried by the plurality of positioning bumps 9 to the bottle blowing production line 5 at one time.

In the manufacturing process of the bottle body, the first mechanical arm 2 transfers a plurality of bottle blanks injected by the injection molding device 1 to the transfer mechanism 3 at one time, the transfer mechanism 3 moves the plurality of bottle blanks to the second mechanical arm 4, and the second mechanical arm 4 transfers the plurality of bottle blanks transferred by the transfer mechanism 3 to the bottle blowing production line 5 at one time, so that the automatic transfer of the bottle blanks is realized, the transfer efficiency of the bottle blanks is improved, and the production and manufacturing efficiency of the bottle body is further improved; the contact pollution of personnel and the cross contact pollution of each other in the bottle blank transferring process are reduced, the transferring yield of the bottle blanks is improved, and the manufacturing yield of the bottle bodies is further improved in an auxiliary mode.

Injection moulding device 1 includes the fixed die plate and with the movable mould board that the fixed die plate cooperation was used, and the power supply drive movable mould board of injection moulding device 1 is close to or keeps away from the fixed die plate, and the fixed die plate encloses with the movable mould board to be established and is formed with a plurality of shaping chambeies, and the shaping chamber is used for the shaping bottle base, and a plurality of shaping chambeies are the rectangle array setting. In actual use, the injection molding device 1 can perform injection molding on a plurality of bottle blanks at one time.

First manipulator 2 is including independently setting up or connecting the movable mechanical arm that sets up on injection moulding device 1, and movable mechanical arm can install fixedly subaerial promptly, perhaps movable mechanical arm installation sets up on injection moulding device 1's body frame, and pick-up 6 is connected and is set up on movable mechanical arm's end, and a plurality of pick-up heads 7 of pick-up 6 of first manipulator 2 are the rectangle array setting, and a plurality of pick-up heads 7 of first manipulator 2 pick up the fashioned bottle base in a plurality of shaping chambeies respectively. The quantity of group is arranged for a plurality of in location, and a plurality of location are arranged group parallel arrangement, and a plurality of location are arranged the equidistant setting of group, and the location lug 9 of a plurality of location row group is the rectangle array setting, and the bottle base that a plurality of pick heads 7 of first manipulator 2 picked up sets up respectively on a plurality of location lugs 9 of a plurality of location row groups.

In actual use, according to actual needs, the driving assembly can drive the carrying disc 8 to enable the bottle blanks carried by the positioning bumps 9 to move along a linear track and a curved track, and of course, the driving assembly can drive the carrying disc 8 to move horizontally, vertically or rotationally.

In this embodiment, the drive assembly includes first support body 11, rotates the axis body 12 that sets up on first support body 11, is used for driving the pivoted first motor 13 of axis body 12, and the axis of rotation of axis body 12 extends the setting along vertical direction, carries the installation of dish 8 and sets up on axis body 12, and first motor 13 drive axis body 12 is even carried a dish 8 and is rotated, realizes transporting the bottle base that the location lug 9 of carrying dish 8 bore.

After a plurality of bottle bases injection-molded by the injection molding device 1 are moved onto a plurality of positioning lugs 9 of the transfer mechanism 3 by a plurality of pick-up heads 7 of the first manipulator 2, the first motor 13 drives the shaft body 12 to rotate together with the carrying disc 8, and the rotating carrying disc 8 drives the bottle bases of the positioning lugs 9 to rotate together, so that on one hand, the bottle bases are automatically moved, on the other hand, the bottle bases are automatically kept stand, and the internal stress of the bottle bases injection-molded by the injection molding device 1 is eliminated.

The rotating shaft is connected with a rotating disk 14, the rotating disk 14 is a substantially circular flat plate, the center of the rotating disk 14 is fixedly connected with a shaft body 12, the number of the carrying disks 8 is multiple, the carrying disks 8 are respectively arranged on the rotating disk 14, the carrying disks 8 are arranged in an annular array around the rotating axis of the rotating disk 14, and in the embodiment, the number of the carrying disks 8 is three. During actual use, the first motor 13 drives the shaft body 12 to drive the rotating disc 14 to rotate, and the rotating disc 14 drives the carrying disc 8 to rotate together, so that the bottle blanks carried by the positioning lugs 9 on the carrying disc 8 are moved.

The second manipulator 4 comprises a second frame body 15, a first carrier plate 16 arranged on the second frame body 15 in a sliding manner, a first driving element used for driving the first carrier plate 16 to slide, a second carrier plate 18 arranged on the first carrier plate 16 in a sliding manner, a first rack 17 fixedly arranged on the second carrier plate 18, a first gear meshed with the first rack 17, and a second motor used for driving the first gear to rotate, wherein the first carrier plate 16 and the second carrier plate 18 both slide in parallel to the horizontal plane, the sliding direction of the first carrier plate 16 is crossed with the sliding direction of the second carrier plate 18, preferably, the sliding direction of the first carrier plate 16 is perpendicular to the sliding direction of the second carrier plate 18, the pickup head 7 is arranged on the second carrier plate 18, and the pickup head 7 is located above the positioning bump 9.

The sliding direction of the second carrier 18 is parallel to the direction of the bottle blank transferred by the bottle blowing production line 5, when in actual use, the first driving member drives the first carrier 16 to move the pick-up head 7 to the upper side of the bottle blank carried by the transfer mechanism 3, the pick-up head 7 is used for picking up the bottle blank, then the second driving member drives the second carrier 18 to make the bottle blank picked up by the pick-up head 7 and the bottle blank transferred by the bottle blowing production line 5 move synchronously, so that the bottle blank picked up by the pick-up head 7 is relatively static with the bottle blowing production line 5, and then the bottle blank picked up by the pick-up head 7 can be accurately and stably placed on the bottle blowing production line 5.

The second manipulator 4 further comprises a third carrier plate 19 vertically and slidably arranged on the second carrier plate 18, a second rack arranged on the third carrier plate, a second gear meshed with the second rack, and a second driving part used for driving the second gear to rotate, the pick-up head 7 is arranged on the third carrier plate 19, the second driving part can be a telescopic cylinder or an electric cylinder according to actual needs, the pick-up head 7 is arranged on the third carrier plate 19, and connecting lines among the plurality of pick-up heads 7 of the second manipulator 4 are parallel to a horizontal plane.

In the using process of the second manipulator 4, the first driving member drives the first carrier plate 16 to move the pick-up head 7 to the position above the bottle blank carried by the transfer mechanism 3, the second driving member drives the pick-up head 7 to move downwards via the third carrier plate 19, so that the pick-up head 7 approaches to and picks up the bottle blank carried by the transfer mechanism 3, then the bottle blank picked up by the pick-up head 7 is located above the bottle blowing production line 5 by matching the first carrier plate 16 and the third carrier plate 19, the bottle blank picked up by the pick-up head 7 is driven by the moving second carrier plate 18 to move synchronously with the bottle blowing production line 5, and then the bottle blank picked up by the pick-up head 7 can be accurately and stably placed on the bottle blowing production line 5.

A plurality of inclined grooves are formed in the third carrier plate 19, the included angle between each inclined groove and the horizontal direction and the included angle between each inclined groove and the vertical direction are acute angles, the included angle between each two adjacent inclined grooves is an acute angle, and the plurality of pickup heads 7 are respectively arranged in the plurality of inclined grooves in a sliding manner; the third carrying plate 19 is provided with a power part and a linkage plate connected with the output end of the power part, the power part drives the plurality of picking heads 7 to slide in the plurality of inclined grooves through the linkage plate, and further, the distance between two adjacent picking heads 7 is changed, so that the distance between bottle blanks picked by the two adjacent picking heads 7 is equal to the distance between two adjacent carriers of the bottle blowing production line 5, and the bottle blanks picked by the two adjacent picking heads 7 can be accurately placed on the two adjacent carriers.

The pick-up heads 7 are provided with suction holes for accommodating bottle blanks, and all the pick-up heads 7 of the same manipulator are communicated with the same vacuum-pumping device. During the in-service use, manipulator drive pick up head 7 moves down, stretches into the absorption downthehole until the bottle base, and evacuation equipment starts and makes all pick up head 7 all hold the bottle base, realizes that a plurality of pick up heads 7 once only pick up a plurality of bottle bases.

The positioning bump 9 comprises a positioning column 21 fixedly arranged on the carrying disc 8 and a buffer ring 22 sleeved outside the positioning column 21, the buffer ring 22 is in a circular ring shape, the buffer ring 22 is made of elastic materials, a bottle blank is sleeved outside the positioning column 21, and a conical part 23 convenient for the bottle blank to be sleeved outside the positioning column 21 is arranged at the free end of the positioning column 21. The tapered portion 23 may be conical or pyramid-shaped, as required. After the bottle preform is sleeved outside the positioning column 21, the buffer ring 22 is used to isolate the carrying tray 8 from the bottle preform, and the buffer ring 22 absorbs the impact force between the bottle preform and the carrying tray 8, so as to prevent the bottle preform from directly colliding with the carrying tray 8 and being damaged.

The bottle blowing production line 5 comprises a line body part, an annular chain rotationally arranged on the line body part, a third driving part used for driving the annular chain to rotate, a heating unit and a bottle blowing unit arranged on the line body part, and a plurality of carriers arranged on the annular chain, wherein the line body part is formed by welding under a metal condition, the main body of the line body part is in a cuboid shape, the rotating axis of the annular chain extends in the vertical direction, the carriers are arranged in the length direction of the annular chain, preferably, the carriers are arranged in the length direction of the annular chain at equal intervals, the heating unit is used for heating a plurality of bottle blanks transferred to the carriers by the second manipulator 4, and the bottle blowing unit blows and pulls the bottle blanks heated and softened by the heating unit into bottles.

The bottle blowing production line 5 is also provided with an unloading manipulator 24 and a plurality of clamping pieces 25 arranged at the tail end of the unloading manipulator 24, and the plurality of clamping pieces 25 are used for respectively clamping bottle blowing units borne by the plurality of carriers and blowing and drawing the molded bottles.

In this embodiment, unloading manipulator 24 end is fixed with loading board 26, and unloading manipulator 24 is equipped with the fan-shaped tooth of meshing each other including rotating two clamping jaws 27 that set up on loading board 26, two clamping jaws 27, and the one end that fan-shaped tooth was kept away from to clamping jaw 27 is equipped with the breach groove, and the breach groove is located one side that two clamping jaws 27 are close to each other. In practical use, the two clamping jaws 27 clamp the bottle body formed by blow-molding of the bottle blowing unit, the bottle body is accommodated in the notch groove, and the inner groove wall of the notch groove is used for stopping and limiting the bottle body to prevent the bottle body from moving relative to the clamping jaws 27. Preferably, the carrier plate 26 is provided with a fourth driving member for driving the clamping jaws 27 of all the clamping members 25 to synchronously rotate, so as to synchronously open or synchronously close the plurality of clamping members 25.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. An injection molding and bottle blowing integrated machine for bottles comprises an injection molding device, a first manipulator, a transfer mechanism, a second manipulator and a bottle blowing production line, wherein the first manipulator is used for transferring a plurality of bottle blanks injected by the injection molding device to the transfer mechanism at one time; the method is characterized in that: the first mechanical arm and the second mechanical arm are both provided with picking pieces, each picking piece is provided with a plurality of picking heads which are arranged in a collinear manner, and the plurality of picking pieces are used for picking a plurality of bottle blanks respectively; the transfer mechanism comprises a movably arranged carrying disc, a driving assembly for driving the carrying disc to move and a positioning row group arranged on the carrying disc, wherein the positioning row group is provided with a plurality of positioning lugs arranged in a collinear way, and the positioning lugs respectively bear a plurality of bottle blanks; the bottle blanks picked up by the plurality of picking heads of the first manipulator are transferred to the plurality of positioning lugs, and the bottle blanks carried by the plurality of positioning lugs are transferred to a bottle blowing production line by the plurality of picking heads of the second manipulator.

2. An injection molding and bottle blowing machine for bottle bodies according to claim 1, which is characterized in that: the injection molding device comprises a fixed template and a movable template matched with the fixed template, wherein a plurality of molding cavities are formed by surrounding the fixed template and the movable template and used for molding bottle blanks, and the molding cavities are arranged in a rectangular array; the first manipulator comprises a movable mechanical arm which is independently arranged or arranged on the injection molding device, the picking part is arranged at the tail end of the movable mechanical arm, and a plurality of picking heads of the picking part of the first manipulator are arranged in a rectangular array; the quantity of location row group is a plurality of, and a plurality of location row group parallel arrangement, the location lug of a plurality of location row groups are the rectangular array setting.

3. An injection molding and bottle blowing machine for bottle bodies according to claim 1, which is characterized in that: the driving assembly drives the carrying disc to enable the bottle blanks carried by the positioning lugs to move along a linear track and move along a curved track.

4. An injection molding and bottle blowing machine for bottle bodies according to claim 3, which is characterized in that: the drive assembly comprises a first support body, a shaft body arranged on the first support body in a rotating mode, a first motor used for driving the shaft body to rotate, a carrying disc is arranged on the shaft body, the first motor drives the shaft body to rotate together with the carrying disc, and transfer of bottle blanks carried by a positioning lug of the carrying disc is achieved.

5. An injection molding and bottle blowing machine for bottle bodies according to claim 1, which is characterized in that: the second manipulator comprises a second support body, a first support plate, a first driving piece, a second support plate, a first rack, a first gear and a second motor, wherein the first support plate is horizontally arranged on the second support body in a sliding mode, the first driving piece is used for driving the first support plate to slide, the second support plate is horizontally arranged on the first support plate in a sliding mode, the first rack is arranged on the second support plate, the first gear is meshed with the first rack, the second motor is used for driving the first gear to rotate, the sliding direction of the first support plate and the sliding direction of the second support plate are arranged in a crossed mode, the picking head is arranged on the second support plate and is located above the positioning bump, and the sliding direction of the second support plate is.

6. An injection molding and bottle blowing machine for bottle bodies according to claim 5, which is characterized in that: the second manipulator further comprises a third carrier plate vertically and slidably arranged on the second carrier plate, a second rack arranged on the third carrier plate, a second gear meshed with the second rack, and a second driving piece used for driving the second gear to rotate, the picking heads are arranged on the third carrier plate, and connecting lines among the plurality of picking heads of the second manipulator are parallel to a horizontal plane.

7. An injection molding and bottle blowing machine for bottle bodies according to claim 6, which is characterized in that: the third carrying plate is provided with a plurality of inclined grooves, the included angle between each inclined groove and the horizontal direction and the included angle between each inclined groove and the vertical direction are acute angles, the included angle between each two adjacent inclined grooves is an acute angle, and the plurality of picking heads are respectively arranged in the plurality of inclined grooves in a sliding mode; the third bearing plate is provided with a power piece and a linkage plate connected with the output end of the power piece, and the power piece drives the plurality of picking pieces to slide in the plurality of inclined grooves through the linkage plate so as to change the distance between two adjacent picking heads.

8. An injection molding and bottle blowing machine for bottle bodies according to claim 1, which is characterized in that: the positioning lug comprises a positioning column arranged on the carrying disc and a buffering ring sleeved outside the positioning column, the bottle blank is sleeved outside the positioning column, and the free end of the positioning column is provided with a conical part convenient for the bottle blank to be sleeved outside the positioning column.

9. An injection molding and bottle blowing machine for bottle bodies according to claim 1, which is characterized in that: the bottle blowing production line comprises a wire body, an annular chain rotatably arranged on the wire body, a third driving piece used for driving the annular chain to rotate, a heating unit and a bottle blowing unit arranged on the wire body, and a plurality of carriers arranged on the annular chain, wherein the carriers are arranged along the length direction of the annular chain, the heating unit is used for heating a plurality of bottle blanks transferred to the carriers by a second manipulator, and the bottle blowing unit is used for blowing and drawing the bottle blanks heated and softened by the heating unit into bottles.

10. An injection molding and bottle blowing machine for bottle bodies according to claim 9, which is characterized in that: the bottle blowing production line is further provided with an unloading manipulator and a plurality of clamping pieces arranged at the tail end of the unloading manipulator, and the plurality of clamping pieces are used for respectively clamping bottle blowing units borne by the plurality of carriers and blowing and drawing the bottle bodies formed into shapes.