CN214491427U

CN214491427U - Plastic test tube blow mold

Info

Publication number: CN214491427U
Application number: CN202120674912.2U
Authority: CN
Inventors: 张江华
Original assignee: Yuhuan Chugang Mould Technology Co ltd
Current assignee: Yuhuan Chugang Mould Technology Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-10-26
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a mould, aiming at providing a plastic test tube blow mould, the technical proposal main points are that the plastic test tube blow mould comprises a front template and a rear template, a cavity is arranged between the front template and the rear template, the top end of the cavity is provided with a blow opening, one side of the front template far away from the rear template is provided with a cooling structure to lead a test tube to fall off more quickly, a push broach structure is arranged above the cooling structure to cut off the end of the test tube after the blow molding cooling is finished, a buffer structure is arranged in the push broach structure to improve the anti-buffer capacity of the push broach structure and slow down the abrasion degree of a cylinder and a blade in the push broach structure, a reset structure is arranged in the buffer structure to lead the buffer structure to be capable of completely recovering in time, the anti-buffer effect of the buffer structure next time is avoided to be influenced, a limit structure is arranged in the push broach structure to improve the stability of the push broach structure, reducing wear improves life, the utility model is suitable for a mould technical field.

Description

Plastic test tube blow mold

Technical Field

The utility model belongs to the technical field of the mould, refer in particular to a plastics test tube blowing mould.

Background

The plastic mould is a tool which is matched with a plastic forming machine in the plastic processing industry and gives a complete configuration and an accurate size to a plastic product; because of the variety and processing method of plastic, and the structure of plastic molding machines and plastic products are various, the variety and structure of plastic molds are also various.

Traditional mould is adding man-hour, thereby generally need promote the end of blade with the test tube through the cylinder and cut open automatically, and most push broach structure is mostly only supported and is stable through the output shaft and the blade of cylinder, along with the increase of live time for the wearing and tearing of cylinder and blade are very fast, and still can take place the cracked phenomenon of blade, have great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a good long service life's of stability plastics test tube blow mold.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a plastics test tube blowing mould, includes front template and back template, be equipped with the die cavity between front template and the back template, the die cavity top is equipped with blowing mouth, characterized by: the one side that the back template was kept away from to preceding template is equipped with cooling structure, cooling structure includes snakelike cooling tube and the cavity that is used for placing snakelike cooling tube, snakelike cooling tube is fixed to be established on the inner wall that the cavity is close to the die cavity one side, the fixed a plurality of annular pieces that are equipped with in snakelike cooling tube, preceding template and being connected with the raceway are all extended to the top and the bottom of snakelike cooling tube, the raceway is connected with circulating pump and water tank, the cooling structure top is equipped with the push-type broach structure.

The utility model discloses further set up to: the push broach structure comprises an air cylinder, a push plate and a plurality of blades, wherein the air cylinder is fixedly installed on one surface, away from the rear template, of the front template through a fixing frame, the air cylinder is fixedly connected with the push plate, the blades are fixedly installed on the lower surface of the push plate through a blade fixing plate, the blades penetrate through the front template, and a plurality of cutter clamping grooves matched with the blades are formed in the lower end surface of the push plate.

The utility model discloses further set up to: be equipped with buffer structure between push pedal and the preceding template, the one side that the preceding template is close to the push pedal is equipped with the counter sink with buffer structure looks adaptation, buffer structure includes solid fixed cylinder, movable rod and first spring, gu fixed cylinder one end and push pedal fixed connection, the other end and movable rod sliding connection, first spring is located solid fixed cylinder, and both ends respectively with push pedal and movable rod fixed connection, the movable rod is located gu fixed cylinder with first spring fixed connection's one end, the surface circumference align to grid of movable rod is equipped with a plurality of arc grooves.

The utility model discloses further set up to: the fixed shell that is equipped with of one end that first spring was kept away from to the movable rod, the shell is to fixed section of thick bamboo one side extension and be close to the fixed a plurality of interior fixture blocks that are equipped with of one end of fixed section of thick bamboo, the fixed outer fixed surface that is close to shell one end is equipped with the outer fixture block with interior fixture block looks adaptation of fixed section of thick bamboo, be equipped with reset structure between shell surface one end and the push pedal, the other end is equipped with outer snap ring, be equipped with the interior draw-in groove with outer snap ring looks adaptation in the counter bore, the fixed elastic block that is equipped with on the inner wall of keeping away from buffer structure in the counter bore.

The utility model discloses further set up to: reset structure includes that the embedding establishes a plurality of spouts in the push pedal, is located a plurality of sliders of a plurality of spouts and is located a plurality of second springs of a plurality of spouts, and is a plurality of second spring both ends respectively with the inner wall and the slider fixed connection of spout, be connected through being equipped with the release link between the surface of slider and shell, the release link both ends are connected with the surface and the slider hinge of shell respectively.

The utility model discloses further set up to: all be equipped with limit structure between the push pedal both sides and the mount, limit structure is including establishing the mount near the spacing groove on the push pedal one side and establishing the spacing wheel at the spacing inslot, the push pedal both sides all are fixed be equipped with spacing round swing joint's support column.

The utility model has the advantages that:

1. the test tube in the cavity can fall off more quickly through the cooling structure, and the plurality of annular pieces are arranged in the serpentine cooling tube in the cooling mechanism, so that the cooling area is increased, the cooling effect is improved, the flow of cooling water can be slowed down, the heat transfer efficiency is improved, and the cooling effect is improved;

2. can accomplish the blow molding cooling at the test tube through the broach structure after, the broach structure promotes the blade and cuts open the end of test tube, simultaneously through structural buffer structure that sets up at the broach for certain shock attenuation effect has between push pedal and the preceding template, the cooperation improves the stability of broach structure operation at the limit structure at push pedal both ends, avoids the wearing and tearing of blade and cylinder great, thereby influences its life.

Drawings

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

fig. 2 is a partial cross-sectional view of the interior of the front form of the present invention;

FIG. 3 is an enlarged view of the present invention at A in FIG. 2;

fig. 4 is a cross-sectional view of the present invention;

fig. 5 is an enlarged view of fig. 4B according to the present invention;

fig. 6 is a top view of the present invention;

fig. 7 is an enlarged sectional view at C in fig. 6 according to the present invention;

figure 8 is an enlarged cross-sectional view taken at D of figure 6 in accordance with the present invention;

fig. 9 is an enlarged cross-sectional view taken at E in fig. 6 according to the present invention;

fig. 10 is a schematic structural diagram of a housing in the buffering structure of the present invention;

fig. 11 is a schematic structural view of the push broach structure of the present invention;

fig. 12 is a front view of the front form of the present invention;

in the drawings: 1. a front template; 2. a rear template; 3. a cavity; 4. a blow molding port; 5. a cooling structure; 50. a serpentine cooling tube; 51. a cavity; 52. a sealing cover; 53. a thermal insulation layer; 54. an annular sheet; 55. a water delivery pipe; 56. A circulation pump; 57. a water tank; 6. a push-type broach structure; 60. a cylinder; 61. pushing the plate; 610. a cutter clamping groove; 62. A blade; 63. a fixed mount; 64. a connecting plate; 65. a blade fixing plate; 650. a protrusion; 66. a knife edge; 7. A buffer structure; 70. a fixed cylinder; 700. an outer clamping block; 71. a movable rod; 710. an arc groove; 72. a first spring; 73. a housing; 730. an inner clamping block; 731. an outer snap ring; 74. a reset structure; 740. a chute; 741. a slider; 742. a second spring; 743. a reset lever; 8. a countersunk hole; 80. an inner clamping groove; 81. an elastic block; 9. A limiting structure; 90. a limiting groove; 91. a limiting wheel; 910. a bearing groove; 92. a support pillar; 10. and a bearing.

Detailed Description

The invention is further described in the following with reference to fig. 1 to 12 in a specific embodiment:

the utility model provides a plastics test tube blowing mould, includes front template 1 and back template 2, be equipped with die cavity 3 between front template 1 and the back template 2, the 3 tops of die cavity are equipped with blowing mouth 4, the one side that back template 2 was kept away from to front template 1 is equipped with

cooling structure

5, 5 tops of cooling structure are equipped with broach structure 6.

It can be seen from the above structure that the test tube in the cavity 3 can fall off more quickly through the cooling structure 5, and after the blow molding cooling of the test tube is completed through the push broach structure 6, the push broach structure 6 pushes the blade 62 to cut off the end of the test tube.

As an optional embodiment, the cooling structure 5 includes a serpentine cooling pipe 50 and a cavity 51 for placing the serpentine cooling pipe 50, one side of the cavity 51, which is located inside the front mold plate 1 and is far away from the cavity 3, is an opening, a sealing cover 52 is fixedly disposed at the opening, a heat insulating layer 53 is fixedly disposed on the inner wall of the cavity 51 except for the side close to the cavity 3, the serpentine cooling pipe 50 is fixedly disposed on the inner wall of the cavity 51 near the side of the cavity 3, a plurality of annular sheets 54 are fixedly disposed in the serpentine cooling pipe 50, the sealing cover 52 extends from the top end and the bottom end of the serpentine cooling pipe 50 and is connected to a water pipe 55, the water pipe 55 is connected to a circulation pump 56 and a water tank 57, the sealing cover 52 is preferably installed and connected by bolts, the heat insulating layer 53 is preferably connected by bonding, the annular sheets 54 and the serpentine cooling pipe 50 are preferably integrally formed, the serpentine cooling pipe is preferably connected with the inner wall of the cavity by bolts.

According to the structure, the plurality of annular sheets 54 are arranged in the serpentine cooling pipe 50 in the cooling mechanism, so that the cooling area is increased, the cooling effect is improved, the flow of cooling water can be slowed down, the heat transfer efficiency is improved, and the cooling effect is improved; circulating pump 56 has taken out the cooling water in the water tank 57, then input the cooling water from snakelike cooling tube 50's top through raceway 55, the cooling water receives the influence of gravity, from snakelike cooling tube 50's top flow direction bottom, thereby cool off die cavity 3, the cooling water flows out and flows in water tank 57 from snakelike cooling tube 50's bottom at last, realize recycling, improve water resource utilization, wherein except that the face that is close to die cavity 3 on the inner wall of cavity 51 does not set up insulating layer 53, all set up insulating layer 53 on remaining five faces, avoid preceding template 1 position except that die cavity 3 to carry out the heat exchange with the cooling water, thereby influence the cooling effect, adopt insulating layer 53 can make the cooling water more concentrate to the cooling effect in die cavity 3, the effect is better.

As an optional implementation manner, the push broach structure 6 includes an air cylinder 60, a push plate 61 and a plurality of blades 62, the air cylinder 60 is fixedly installed on one side of the front template 1 far away from the rear template 2 by being provided with a fixing frame 63, a connecting plate 64 is fixedly provided between the air cylinder 60 and the push plate 61, the plurality of blades 62 are fixedly installed on the lower surface of the push plate 61 by being provided with a blade fixing plate 65, the plurality of blades 62 penetrate through the front template 1, a plurality of knife edges 66 adapted to the blades 62 are provided on both the front template 1 and the rear template 2, the fixing frame 63 is preferably installed on the front template 1 by being connected with bolts, the connecting plate 64 is preferably connected with the air cylinder 60 and the push plate 61 by bolts, and the blade fixing plate 65 is preferably connected with the push plate 61 by bolts.

It can be seen from the above structure that the connecting plate 64 is pushed by the cylinder 60, so that the connecting plate 64 drives the push plate 61 to move, and the blade 62 is fixed on the lower end surface of the push plate 61 through the blade fixing plate 65, that is, the push plate 61 moves to drive the blade 62 to extend out of the knife edge 66, so that the end of the test tube after the blow molding cooling is completed is cut.

As an alternative embodiment, the lower end surface of the push plate 61 is provided with a plurality of cutter clamping grooves 610 adapted to the cutter 62, the upper end surface of the cutter fixing plate 65 is provided with a plurality of protrusions 650 adapted to the cutter clamping grooves 610, the protrusions 650 and the cutter fixing plate 65 are preferably integrally formed, and the upper and lower end surfaces of the cutter 62 can be provided with anti-slip pads to improve the mounting firmness of the cutter 62.

It can be seen from the above structure that the blade 62 is pushed against the inside of the knife clamping groove 610 through the protrusion 650, so that the blade 62 is more firmly installed, and the phenomenon that the blade 62 falls off when the push broach structure 6 works is avoided, on one hand, the blade 62 is broken, and on the other hand, a great potential safety hazard exists.

As an optional implementation manner, a buffer structure 7 is arranged between the push plate 61 and the front template 1, one side of the front template 1, which is close to the push plate 61, is provided with a counter sink 8 matched with the buffer structure 7, the buffer structure 7 includes a fixed cylinder 70, a movable rod 71 and a first spring 72, one end of the fixed cylinder 70 is fixedly connected with the push plate 61, the other end of the fixed cylinder is slidably connected with the movable rod 71, the first spring 72 is located in the fixed cylinder 70, two ends of the first spring are respectively fixedly connected with the push plate 61 and the movable rod 71, one end of the movable rod 71, which is fixedly connected with the first spring 72, is located in the fixed cylinder 70, the size of the movable rod 71 is the same as that of the inner wall of the fixed cylinder 70, a plurality of arc grooves 710 are uniformly arranged on the circumference of the outer surface of the movable rod 71, welding is preferably adopted between the fixed cylinder 70 and the push plate 61, clamping is preferably adopted at two ends of the first spring 72, the maintenance and the disassembly are convenient.

It can be seen from the above structure that, when the push broach structure 6 works, the connecting plate 64 can drive the push plate 61 to move towards the front template 1 under the action of the cylinder 60, and the inner wall of the countersunk hole 8 is abutted through the movable rod 71, thereby leading to the compression of the first spring 72, realizing the buffering and damping effect of the push plate 61, avoiding the vibration of the push broach structure 6 supported only by the output shaft of the cylinder 60 and the blade 62, preventing the increase of the wear degree of the cylinder 60 and the blade 62, wherein the size of the movable rod 71 is the same as that of the inner wall of the fixed cylinder 70, and playing a certain supporting role, and a plurality of arc grooves 710 are uniformly arranged on the outer surface of the movable rod 71, and avoiding the movable rod 71 from being subjected to the resistance generated by the air extrusion from the inside of the fixed cylinder 70 when moving to one side of the fixed cylinder 70.

As an optional embodiment, a housing 73 is fixedly disposed at one end of the movable rod 71 away from the first spring 72, the housing 73 extends toward one side of the fixed cylinder 70 and is fixedly disposed at one end close to the fixed cylinder 70, a plurality of inner retainers 730 are fixedly disposed at one end of the fixed cylinder 70 close to the fixed cylinder 70, an outer retainer 700 adapted to the inner retainers 730 is fixedly disposed on an outer surface of one end of the fixed cylinder 70 close to the housing 73, a reset structure 74 is disposed between one end of a surface of the housing 73 and the push plate 61, an outer retainer 731 is disposed at the other end of the surface of the housing 73, an inner retaining groove 80 adapted to the outer retainer 731 is disposed in the counter bore 8, an elastic block 81 is fixedly disposed on an inner wall of the counter bore 8 away from the buffer structure 7, the housing 73 is preferably integrally formed with the movable rod 71, or welded to the housing 73, the inner retainer 730 and the outer retainer 731 are preferably integrally formed with the housing 73, the outer retainer 700 is preferably integrally formed with the fixed cylinder 70, and the elastic block 81 is preferably connected by adhesion, and is preferably made of heat-resistant rubber.

It can be seen from the above structure that the outer shell 73 is arranged on the outer side of the movable rod 71, which is convenient for protecting the inside, and the installation and the disassembly between the outer shell 73 and the fixed cylinder 70 are convenient due to the installation and the matching of the plurality of inner clamping blocks 730 and the plurality of outer clamping blocks 700; the elastic block 81 can further improve the anti-buffering effect of the buffering structure 7, and the outer clamping ring 731 and the inner clamping groove 80 can enable the outer shell 73 to have a transient fixing effect when abutting against the counter bore 8, so that the vibration of the buffering structure 7 after anti-buffering is relieved, and the stability is further improved; the reset mechanism 74 is capable of resetting the bumper mechanism 7 as quickly as possible in time as the blade 62 is retracted.

As an optional implementation manner, the reset structure 74 includes a plurality of sliding grooves 740 embedded in the push plate 61, a plurality of sliding blocks 741 located in the plurality of sliding grooves 740, and a plurality of second springs 742 located in the plurality of sliding grooves 740, two ends of the plurality of second springs 742 are respectively fixedly connected to an inner wall of the sliding grooves 740 and the sliding blocks 741, the sliding blocks 741 are connected to a surface of the housing 73 through a reset rod 743, two ends of the reset rod 743 are respectively hinged to the surface of the housing 73 and the sliding blocks 741, and the two ends of the second springs 742 are preferably clamped to facilitate maintenance and disassembly.

It can be seen from the above structure that, in the process of anti-buffering of the buffering structure 7, the housing 73 and the movable rod 71 will displace to a side close to the air cylinder 60, at this time, the housing 73 will drive the reset rod 743 to make the reset rod 743 push the slider 741 to displace in the sliding slot 740 in a direction of squeezing the second spring 742, after the air cylinder 60 retracts, the buffering structure 7 is also taken out of the counter bore 8, the acting force of the housing 73 on the reset rod 743 and the reset rod 743 on the slider 741 is lost, the slider 741 is displaced in a direction of recovering the second spring 742 under the acting force of the second spring 742, so as to push the reset rod 743 and the housing 73 to restore the buffering structure 7, and it is avoided that the buffering structure 7 is not restored or is not completely restored by an accident, and the next anti-buffering effect of the buffering structure 7 is affected.

As an optional implementation manner, a limiting structure 9 is disposed between each of two sides of the push plate 61 and the fixing frame 63, the limiting structure 9 includes a limiting groove 90 disposed on one surface of the fixing frame 63 close to the push plate 61 and a limiting wheel 91 disposed in the limiting groove 90, a supporting column 92 movably connected to the limiting wheel 91 is fixedly disposed on each of two sides of the push plate 61, and the supporting column 92 and the push plate 61 are preferably integrally formed.

By the structure, the abrasion degree of the air cylinder 60 and the blade 62 is reduced by arranging the limiting structure 9, a certain supporting effect is exerted on the push plate 61 and the blade 62, and the movement of the air cylinder 60 and the blade 62 is improved by the limiting groove 90 and the limiting wheel 91, so that the stability is improved, the abrasion is reduced, and the service life is prolonged.

As an optional implementation manner, the movable connection is a connection of a bearing 10, a bearing groove 910 for installing the bearing 10 is provided on one surface of the limiting wheel 91 close to the supporting column 92, an inner diameter of the bearing 10 is fixedly connected with the supporting column 92, an outer diameter of the bearing 10 is fixedly connected with an inner wall of the bearing groove 910, and the fixed connection preferably adopts interference fit.

It can be seen from the above structure that the friction resistance between the supporting column 92 and the limiting wheel 91 is reduced by the connection of the bearing 10, and the smoothness of the sliding of the limiting wheel 91 in the limiting groove 90 is improved.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a plastics test tube blowing mould, includes front bezel (1) and back template (2), be equipped with die cavity (3) between front bezel (1) and back template (2), die cavity (3) top is equipped with blowing mouth (4), characterized by: one side of the front template (1) far away from the rear template (2) is provided with a cooling structure (5), the cooling structure (5) comprises a serpentine cooling pipe (50) and a cavity (51) for placing the serpentine cooling pipe (50), the serpentine cooling pipe (50) is fixedly arranged on the inner wall of one side of the cavity (51) close to the cavity (3), a plurality of annular sheets (54) are fixedly arranged in the serpentine cooling pipe (50), the top end and the bottom end of the serpentine cooling pipe (50) extend out of the front template (1) and are connected with a water conveying pipe (55), the water conveying pipe (55) is connected with a circulating pump (56) and a water tank (57), and a push broach structure (6) is arranged above the cooling structure (5).

2. The plastic test tube blow mold of claim 1, wherein: push-type broach structure (6) are including cylinder (60), push pedal (61) and a plurality of blade (62), cylinder (60) are through being equipped with mount (63) with its fixed mounting in the front on template (1) keep away from the one side of back template (2), cylinder (60) and push pedal (61) fixed connection, a plurality of blade (62) are through being equipped with blade fixed plate (65) fixed mounting at the lower surface of push pedal (61), and a plurality of front template (1) is run through to blade (62), the lower terminal surface of push pedal (61) is equipped with a plurality of card sword groove (610) with blade (62) looks adaptation.

3. The plastic test tube blow mold of claim 2, wherein: be equipped with buffer structure (7) between push pedal (61) and front form (1), one side that front form (1) is close to push pedal (61) is equipped with counter sink (8) with buffer structure (7) looks adaptation, buffer structure (7) are including fixed section of thick bamboo (70), movable rod (71) and first spring (72), fixed section of thick bamboo (70) one end and push pedal (61) fixed connection, the other end and movable rod (71) sliding connection, first spring (72) are located fixed section of thick bamboo (70), and both ends respectively with push pedal (61) and movable rod (71) fixed connection, movable rod (71) are located fixed section of thick bamboo (70) with first spring (72) fixed connection's one end, the surface circumference align to grid of movable rod (71) is equipped with a plurality of arc grooves (710).

4. The plastic test tube blow mold of claim 3, wherein: the fixed shell (73) that is equipped with of one end that keeps away from first spring (72) of movable rod (71), shell (73) extend and be close to fixed cylinder (70) one side and fixed a plurality of interior fixture blocks (730) that are equipped with of one end, fixed cylinder (70) are close to the fixed outer fixture block (700) that are equipped with interior fixture block (730) looks adaptation of outer fixed surface of shell (73) one end, be equipped with between shell (73) surface one end and push pedal (61) and reset structure (74), the other end is equipped with outer snap ring (731), be equipped with in counter sink (8) with interior draw-in groove (80) of outer snap ring (731) looks adaptation, fixed elastic block (81) that is equipped with on keeping away from the inner wall of buffer structure (7) in counter sink (8).

5. The plastic test tube blow mold of claim 4, wherein: the reset structure (74) comprises a plurality of sliding grooves (740) embedded in the push plate (61), a plurality of sliding blocks (741) located in the sliding grooves (740), and a plurality of second springs (742) located in the sliding grooves (740), wherein two ends of each second spring (742) are fixedly connected with the inner wall of the sliding groove (740) and the corresponding sliding block (741), the sliding blocks (741) are connected with the surface of the shell (73) through reset rods (743), and two ends of each reset rod (743) are hinged with the surface of the shell (73) and the corresponding sliding block (741).

6. The plastic test tube blow mold of claim 2, wherein: all be equipped with limit structure (9) between push pedal (61) both sides and mount (63), limit structure (9) are close to spacing groove (90) on push pedal (61) one side and establish spacing wheel (91) in spacing groove (90) including establishing mount (63), push pedal (61) both sides all are fixed be equipped with spacing wheel (91) swing joint's support column (92).

7. The plastic test tube blow mold of claim 6, wherein: the swing joint is connected for the bearing, the one side that spacing wheel (91) are close to support column (92) is equipped with bearing groove (910) that are used for installing bearing (10), the internal diameter and the support column (92) fixed connection of bearing (10), the external diameter of bearing (10) and the inner wall fixed connection of bearing groove (910).