CN216300133U

CN216300133U - Mould closing mechanism of hollow blow molding machine

Info

Publication number: CN216300133U
Application number: CN202122747827.7U
Authority: CN
Inventors: 庞晓宇
Original assignee: Zhangjiagang Yingkai Machinery Co ltd
Current assignee: Zhangjiagang Yingkai Machinery Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-04-15
Anticipated expiration: 2031-11-11

Abstract

The utility model provides a mold clamping mechanism of a hollow blow molding machine. The die assembly mechanism of the hollow blow molding machine comprises a concave seat, two mother plates are arranged in the concave seat, two dies are arranged between the two mother plates, two hydraulic cylinders are fixedly mounted at the bottom of the concave seat, two connecting plates are slidably mounted at the bottom of the concave seat, the tops of the two connecting plates are fixedly connected with the corresponding mother plates, and output shafts of the two hydraulic cylinders are respectively and fixedly connected with the two connecting plates; two equal fixed mounting in one side that the mother board is close to each other has two inserting grooves, four the inserting groove all is equipped with the inserted block, two corresponding inserted block all with the mother board fixed connection that corresponds. The die clamping mechanism of the hollow blow molding machine has the advantages of providing a die opening prevention safety for die clamping and facilitating die replacement.

Description

Mould closing mechanism of hollow blow molding machine

Technical Field

The utility model relates to the technical field of plastic processing, in particular to a die assembly mechanism of a hollow blow molding machine.

Background

A blow molding machine is a plastic processing apparatus, which puts a tubular thermoplastic plastic parison extruded from an extruder and in a softened state into a mold, and then introduces compressed air to deform the parison along the mold cavity by the pressure of the air, thereby blowing a hollow product with a short neck.

However, when the hollow blow molding machine is used for closing the molds with two adaptive molds, the hydraulic cylinder is usually adopted as a mold closing part for mold closing operation, the hydraulic cylinder provides power as a power source through a hydraulic station, after mold closing is finished, the output shaft of the hydraulic cylinder is in an extending state, so that the hydraulic cylinder output shaft is easy to retract under artificial misoperation, or when a hydraulic providing system in the hydraulic station breaks down, the two integrated molds are separated, the ongoing injection molding process is interrupted, in addition, the two molds on the hydraulic cylinder output shaft are mostly directly installed in a mode of a plurality of positioning pins and bolts, and more time is consumed when the molds with different injection molding cavities are disassembled and replaced in the later period, and the operation is also troublesome.

Therefore, it is necessary to provide a new mold clamping mechanism for an air blow molding machine to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a die closing mechanism of a hollow blow molding machine, which can provide a die opening prevention safety for die closing and is convenient for replacing a die.

In order to solve the above technical problem, the mold clamping mechanism of a blow molding machine according to the present invention includes: the connecting device comprises a concave seat, two mother plates are arranged in the concave seat, two dies are arranged between the two mother plates, two hydraulic cylinders are fixedly mounted at the bottom of the concave seat, two connecting plates are slidably mounted at the bottom of the concave seat, the tops of the two connecting plates are fixedly connected with the corresponding mother plates, and output shafts of the two hydraulic cylinders are fixedly connected with the two connecting plates respectively; two inserting grooves are fixedly arranged on one sides of the two mother boards close to each other, four inserting grooves are respectively provided with an inserting block, the two corresponding inserting blocks are respectively fixedly connected with the corresponding mother boards, one sides of the two molds far away from each other are respectively provided with a sunken groove, the inner walls of the tops and the bottoms of the two sunken grooves are respectively provided with a positioning groove, two positioning seats are respectively arranged in the two sunken grooves, the sides of the two corresponding positioning seats far away from each other extend into the corresponding positioning grooves, one sides of the two mother boards far away from each other are respectively fixedly provided with a bearing box, the two bearing boxes respectively penetrate through the two sides of the concave seats and are respectively movably connected with the two sides of the concave seats, movable seats are respectively arranged in the two bearing boxes, two linkage rods are respectively hinged on the two movable seats, one ends of the four linkage rods are respectively hinged with the corresponding positioning seats, the linkage rod penetrates through the motherboard and is in sliding connection with the motherboard, screw rods are respectively arranged on the sides, far away from each other, of the two bearing boxes in a threaded manner, and the ends, close to each other, of the two screw rods are respectively abutted against the corresponding movable seats; the connecting plate is provided with two movable openings, the top of each movable opening is provided with an embedded groove, a transverse plate is arranged below the concave seat, two embedded blocks are fixedly arranged at the top of the transverse plate, and the embedded blocks are matched with the embedded grooves.

Preferably, two first sliding rods are slidably mounted on two sides of the concave seat, and the two corresponding first sliding rods are fixedly connected with the corresponding die.

Preferably, two bridging plates are arranged in the sunken grooves and are fixedly connected with the two mother boards respectively, and the four positioning seats are in sliding connection with the corresponding bridging plates.

Preferably, two all overlap on the screw rod and be equipped with reset spring one, two the one end that reset spring one is close to each other all with corresponding the sliding seat fixed connection, two the one end that reset spring one was kept away from each other all with two one side inner wall fixed connection that the bearing box was kept away from each other.

Preferably, two slide bars II are installed on one side of the carrying box far away from each other in a sliding mode, and the two corresponding slide bars II are fixedly connected with the corresponding movable seat.

Preferably, the bottom fixed mounting of concave type seat has two pole settings, two the pole setting all runs through the diaphragm and with diaphragm sliding connection, the bottom fixed mounting of concave type seat has electric putter, fixed mounting has the push pedal on electric putter's the output shaft.

Preferably, two of the upright posts are sleeved with a second reset spring, the top end of the second reset spring is fixedly connected with the bottom of the concave seat, and the bottom end of the second reset spring is fixedly connected with the transverse plate.

Compared with the related art, the mold clamping mechanism of the hollow blow molding machine provided by the utility model has the following beneficial effects:

the utility model provides a mold clamping mechanism of a hollow blow molding machine, which can perform mechanical clamping on a connecting plate after a hydraulic cylinder output shaft extends out to perform mold clamping through clamping between an embedded groove and an embedded block arranged and under the action of the tension of a reset spring II, thereby effectively preventing the condition that a mold is suddenly separated due to manual misoperation or hydraulic station system failure, so that the injection molding work is smoothly performed.

Drawings

Fig. 1 is a schematic structural diagram of a mold clamping mechanism of an air blowing machine according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of the portion B shown in FIG. 2;

fig. 4 is an enlarged schematic view of the portion C shown in fig. 1.

Reference numbers in the figures: 1. a concave seat; 2. a motherboard; 3. a mold; 4. a hydraulic cylinder; 5. a connector tile; 6. inserting grooves; 7. inserting a block; 8. sinking into a groove; 9. positioning a groove; 10. positioning seats; 11. a movable seat; 12. a linkage rod; 13. a screw; 14. a movable opening; 15. caulking grooves; 16. a transverse plate; 17. an insert block; 18. an electric push rod; 19. a carrying case.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a mold clamping mechanism of an air blow molding machine according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is an enlarged view of the portion B shown in FIG. 2;

fig. 4 is an enlarged schematic view of the portion C shown in fig. 1. The clamping mechanism of the hollow blow molding machine comprises: the connecting structure comprises a concave seat 1, wherein two mother plates 2 are arranged in the concave seat 1, two molds 3 are arranged between the two mother plates 2, two hydraulic cylinders 4 are fixedly arranged at the bottom of the concave seat 1, two connecting plates 5 are slidably arranged at the bottom of the concave seat 1, two slide ways are arranged at the bottom of the concave seat 1, the two connecting plates 5 penetrate through the corresponding slide ways and are slidably connected with the inner walls of the corresponding slide ways, the tops of the two connecting plates 5 are fixedly connected with the corresponding mother plates 2, and output shafts of the two hydraulic cylinders 4 are respectively fixedly connected with the two connecting plates 5; two inserting grooves 6 are fixedly arranged on one side of each of the two mother boards 2 close to each other, four inserting grooves 6 are respectively provided with an inserting block 7, two corresponding inserting blocks 7 are respectively fixedly connected with the corresponding mother boards 2, the movement of the mold 3 in the vertical direction can be limited between the inserting grooves 6 and the inserting blocks 7 so as to be incapable of being pulled up and down, one sides of the two molds 3 far away from each other are respectively provided with a sunken groove 8, the inner walls of the tops and the bottoms of the two sunken grooves 8 are respectively provided with a positioning groove 9, two positioning seats 10 are respectively arranged in the two sunken grooves 8, one sides of the two corresponding positioning seats 10 far away from each other extend into the corresponding positioning grooves 9, the movement of the mold 3 in the horizontal direction can be limited through the matching between the positioning grooves 9 and the positioning seats 10 so as to be incapable of being pulled horizontally, and thus under the combined action with the vertical limitation, the mold 3 is reliably clamped and fixed, the two mother boards 2 are fixedly provided with bearing boxes 19 at the sides far away from each other, the two bearing boxes 19 respectively penetrate through the two sides of the concave seat 1 and are respectively movably connected with the two sides of the concave seat 1, the sides, close to each other, of the two bearing boxes 19 are both provided with openings, so that the linkage rods 12 can move conveniently, the two sides of the concave seat 1 are respectively provided with avoidance openings, the bearing boxes 19 penetrate through the avoidance openings and slide in the avoidance openings, the two bearing boxes 19 are respectively provided with movable seats 11, the two movable seats 11 are respectively hinged with two linkage rods 12, one ends of the four linkage rods 12 are respectively hinged with the corresponding positioning seats 10, the linkage rods 12 penetrate through the mother boards 2 and are in sliding connection with the mother boards 2, the mother boards 2 are provided with two through grooves, the linkage rods 12 penetrate through the through grooves and move in the through grooves, screw rods 13 are respectively installed on the sides, far away from each other, of the two bearing boxes 19 in a threaded manner, and the ends, close to each other, of the two screw rods 13 are respectively abutted to the corresponding movable seats 11; two all seted up expansion joint 14 on the linkage plate 5, two caulking groove 15 has all been seted up at the top of expansion joint 14, the below of concave type seat 1 is equipped with diaphragm 16, the top fixed mounting of diaphragm 16 has two abaculus 17, abaculus 17 with 15 looks adaptations of caulking groove, the degree of depth of expansion joint 14 is enough big, can satisfy 16 and 17 together stretch into of abaculus, and can also form the activity relation to one side that two abaculus 17 kept away from each other is all opened and is established to the sideslip to can form the slip conflict with the edgewise of expansion joint 14.

Two first sliding rods are arranged on two sides of the concave seat 1 in a sliding mode, the first sliding rods correspond to the corresponding first sliding rods, the mold 3 is fixedly connected, the first sliding rods can enable the horizontal movement of the mold 3 to reach the range of the maximum accurate degree, the mold closing of the two molds 3 is more accurate, the output shaft of the hydraulic cylinder 4 can be limited, and the first sliding rods cannot rotate.

Two all be equipped with bridging plate in the sunken groove 8, and two bridging plate respectively with two 2 fixed connection of mother board, four positioning seat 10 all with correspond bridging plate sliding connection has all seted up two spouts on two bridging plates, and has all slidable mounting in four spouts the slider, these four sliders all with the positioning seat 10 fixed connection who corresponds to can form the activity restriction to positioning seat 10, make it can only carry out the up-and-down motion.

Two all the cover is equipped with reset spring one on the screw rod 13, two the one end that reset spring one is close to each other all with correspond 11 fixed connection of sliding seat, two the one end that reset spring one was kept away from each other all with two one side inner wall fixed connection that the bearing box 19 was kept away from each other, reset spring one can make it kick-back along with screw rod 13's removal is automatic when rotating screw rod 13 to can take positioning seat 10 out of constant head tank 9 automatically, make tear open and trade the operation process simple, need not other steps.

Two equal slidable mounting in one side that bears case 19 keeps away from each other has two slide bars two, corresponding two slide bar two all with corresponding sliding seat 11 fixed connection, slide bar two can provide gliding horizontal position for sliding seat 11.

The bottom fixed mounting of concave seat 1 has two pole settings, two the pole setting all runs through diaphragm 16 and with diaphragm 16 sliding connection, the bottom fixed mounting of concave seat 1 has electric putter 18, fixed mounting has the push pedal on electric putter 18's the output shaft, and two pole settings can carry out reliable slip support with diaphragm 16, and can restrict its movement track, make it can only carry out the motion from top to bottom.

Two all the cover is equipped with reset spring two in the pole setting, reset spring two the top with the bottom fixed connection of concave type seat 1, reset spring two the bottom with diaphragm 16 fixed connection, reset spring two can form the rebound effect to diaphragm 16, and when push pedal and diaphragm 16 separation on electric putter 18, it can return to the normal position automatically.

The working principle of the clamping mechanism of the hollow blow molding machine provided by the utility model is as follows:

the device is characterized in that mounting feet are fixed on two sides of a concave seat 1, the device is mounted at a designated position of a hollow injection molding machine through the mounting feet when in use, and a first reset spring is in a stretching state under an initial state;

when the two dies 3 are closed, the output shafts of the two hydraulic cylinders 4 are started to extend out, so that the two mother plates 2 can move towards the mutually approaching direction under the driving of the two connecting plates 5, at the moment, the two dies 3 gradually approach, the transverse plate 16 can also enter the two movable openings 14 in the approaching process, when the edge of the movable opening 14 contacts the embedded block 17, the two embedded blocks form sliding collision, the reset spring II is stretched, so that the transverse plate 16 descends, the embedded block 17 on the transverse plate can enter the movable opening 14 and collide with the top inner wall of the movable opening 14 under the action of the reset spring II, finally, after the two dies 3 are closed, the embedded block 17 also corresponds to the embedded groove 15, immediately under the action of the reset spring II, the embedded block 17 is directly clamped into the embedded groove 15, so that the trend of the mother plates 2 is limited, the corresponding injection molding process can be carried out immediately, and when the two dies 3 are separated, the output shaft of the hydraulic cylinder 4 can be started to retract only by starting the output shaft of the electric push rod 18 to extend out, driving the transverse plate 16 to descend through a push plate on the output shaft and taking the embedded block 17 out of the embedded groove 15, so that the two dies 3 are separated;

when the mould 3 of different injection molding chambeies need be torn open to the later stage, rotate two screw rods 13, make two movable seats 11 begin to move towards the direction of keeping away from each other, at this moment, originally tensile spring that resets begins to contract and draws back, thereby make the contained angle between two corresponding trace 12 diminish, corresponding four positioning seats 10 also take out from corresponding constant head tank 9 gradually, final positioning seat 10 takes out from constant head tank 9 completely, two moulds 3 have just lost the restriction of positioning seat 10 this moment, then other moulds 3 have been traded, rotate screw rod 13 towards the opposite direction of rotation before afterwards, can in pushing up constant head tank 9 positioning seat 10 once more.

the utility model provides a mold clamping mechanism of a hollow blow molding machine, which can perform mechanical clamping on a connecting plate 5 after an output shaft of a hydraulic cylinder 4 extends out to perform mold clamping through clamping between an embedded groove 15 and an embedded block 17 and under the action of the tension of a reset spring II, thereby effectively preventing the condition that a mold 3 is suddenly separated due to manual misoperation or hydraulic station system failure, so that the injection molding work is smoothly performed, and the mold 3 can be reliably fixed and can be conveniently detached and replaced by people through the matching of a screw 13 and the reset spring I and the clamping of a positioning groove 9 and a positioning seat 10.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The die assembly mechanism of the hollow blow molding machine comprises a concave seat, and is characterized in that two mother plates are arranged in the concave seat, two molds are arranged between the two mother plates, two hydraulic cylinders are fixedly installed at the bottom of the concave seat, two connecting plates are slidably installed at the bottom of the concave seat, the tops of the two connecting plates are fixedly connected with the corresponding mother plates, and output shafts of the two hydraulic cylinders are fixedly connected with the two connecting plates respectively;

two inserting grooves are fixedly arranged on one sides of the two mother boards close to each other, four inserting grooves are respectively provided with an inserting block, the two corresponding inserting blocks are respectively fixedly connected with the corresponding mother boards, one sides of the two molds far away from each other are respectively provided with a sunken groove, the inner walls of the tops and the bottoms of the two sunken grooves are respectively provided with a positioning groove, two positioning seats are respectively arranged in the two sunken grooves, the sides of the two corresponding positioning seats far away from each other extend into the corresponding positioning grooves, one sides of the two mother boards far away from each other are respectively fixedly provided with a bearing box, the two bearing boxes respectively penetrate through the two sides of the concave seats and are respectively movably connected with the two sides of the concave seats, movable seats are respectively arranged in the two bearing boxes, two linkage rods are respectively hinged on the two movable seats, one ends of the four linkage rods are respectively hinged with the corresponding positioning seats, the linkage rod penetrates through the motherboard and is in sliding connection with the motherboard, screw rods are respectively arranged on the sides, far away from each other, of the two bearing boxes in a threaded manner, and the ends, close to each other, of the two screw rods are respectively abutted against the corresponding movable seats;

the connecting plate is provided with two movable openings, the top of each movable opening is provided with an embedded groove, a transverse plate is arranged below the concave seat, two embedded blocks are fixedly arranged at the top of the transverse plate, and the embedded blocks are matched with the embedded grooves.

2. The clamping mechanism of the blow molding machine according to claim 1, wherein two first sliding rods are slidably mounted on two sides of the concave base, and the two corresponding first sliding rods are fixedly connected with the corresponding molds.

3. The clamping mechanism of an air blowing machine according to claim 1, wherein two of said recessed slots are provided with an bridging plate, and two of said bridging plates are respectively fixedly connected to two of said mother plates, and four of said positioning seats are slidably connected to the corresponding bridging plates.

4. The clamping mechanism of the blow molding machine according to claim 1, wherein a first return spring is sleeved on each of the two screw rods, one end of each of the two first return springs, which is close to each other, is fixedly connected to the corresponding movable seat, and one end of each of the two first return springs, which is far from each other, is fixedly connected to an inner wall of one side of each of the two carrying boxes, which is far from each other.

5. The clamping mechanism of the blow molding machine according to claim 1, wherein two second sliding rods are slidably mounted on the sides of the two carrying boxes away from each other, and the two corresponding second sliding rods are fixedly connected with the corresponding movable seats.

6. The clamping mechanism of the blow molding machine according to claim 1, wherein two vertical rods are fixedly mounted at the bottom of the concave base, both of the two vertical rods penetrate through the transverse plate and are slidably connected with the transverse plate, an electric push rod is fixedly mounted at the bottom of the concave base, and a push plate is fixedly mounted on an output shaft of the electric push rod.

7. The clamping mechanism of the blow molding machine according to claim 6, wherein a second return spring is sleeved on each of the two vertical rods, the top end of the second return spring is fixedly connected with the bottom of the concave seat, and the bottom end of the second return spring is fixedly connected with the transverse plate.