CN211917589U

CN211917589U - Plastic barrel mould

Info

Publication number: CN211917589U
Application number: CN202020528355.9U
Authority: CN
Inventors: 周加利; 张号; 潘建林
Original assignee: Fujian Qiushanlong Plastic Industry Development Co ltd
Current assignee: Fujian Qiushanlong Plastic Industry Development Co ltd
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2020-11-13
Anticipated expiration: 2030-04-11

Abstract

The utility model discloses a plastic barrel mould, which comprises a base, a movable mould and a static mould, wherein the base is arranged from bottom to top, the movable mould and the static mould are movably arranged on the base, the static mould is provided with a mould cavity with a downward opening and an injection molding opening which runs through the static mould and is communicated with the mould cavity, a barrel core which is used for forming a plastic barrel by matching with the mould cavity is fixedly arranged on the movable mould, a connecting plate is also fixedly arranged on the movable mould, the connecting plate is provided with a through hole for the barrel, the diameter of the through hole is the same as that of the die cavity, an adjusting sleeve used for adjusting the height of the formed plastic barrel is movably sleeved on the outer wall of the barrel core, the inner wall and the outer wall of the adjusting sleeve are always tightly attached to the outer wall of the barrel core and the side wall of the through hole, one side, close to the movable die, of the movable die is provided with a plurality of hydraulic cylinders for driving the adjusting sleeve to move axially along the barrel core, the cylinder body of each hydraulic cylinder is fixedly arranged on the movable die, and the end part of a piston. The utility model discloses can highly realize infinitely variable control to fashioned plastic drum size, satisfy more production demands, practice thrift the cost.

Description

Plastic barrel mould

Technical Field

The utility model belongs to the technical field of the technique of mould and specifically relates to a plastic drum mould is related to.

Background

A mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The plastic bucket mold is used in the production and manufacturing process of the plastic bucket, in the prior art, according to the requirement of a user on the volume of the plastic bucket, the plastic buckets with different volumes correspond to different plastic bucket molds, namely, the plastic buckets with the same type are produced, and the molds with different sizes need to be replaced so as to meet the requirement of the user on the volume, thereby increasing the quantity and cost of the molds required for producing and manufacturing the plastic buckets.

Refer to chinese utility model CN208497469U discloses a plastic drum mould, comprising a main body, the inside of main part is provided with the cover half, and the inboard of cover half is provided with the die cavity, and the inboard of die cavity is provided with first movable mould, and the top of first movable mould is connected with the second movable mould, and the internally mounted of first recess has first dog, and the top of second movable mould is connected with the third movable mould, and the inside of first movable mould is provided with the head rod, and the second recess has all been seted up to the inside left and right sides of main part, and the internally mounted of third recess has the second dog, and the pan feeding mouth has been seted up on the top of main part.

The mould can manufacture the plastic barrels with different heights by changing the number of the movable moulds, but can not realize stepless regulation on the height of the plastic barrels, can not meet more customer requirements, and has a larger improvement interval.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims at providing a plastic drum injection mold can highly realize infinitely variable control to fashioned plastic drum size, satisfies more actual production demands, saves the cost.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an injection mold for plastic barrels comprises a base, a movable mold and a static mold, wherein the base is arranged from bottom to top, the movable mold and the static mold are movably arranged on the base, the static mould is provided with a mould cavity with a downward opening and an injection molding opening which penetrates through the static mould and is communicated with the mould cavity, the movable mould is fixedly provided with a barrel core which is used for forming the plastic barrel by matching with the mould cavity, the movable mould is also fixedly provided with a connecting plate, the connecting plate is provided with a through hole for the barrel core to pass through, the diameter of the through hole is the same as that of the die cavity, an adjusting sleeve for adjusting the height of the formed plastic barrel is movably sleeved on the outer wall of the barrel core, the inner wall and the outer wall of the adjusting sleeve are always tightly attached to the outer wall of the barrel core and the side wall of the through hole, one side of the movable die close to the movable die is provided with a plurality of hydraulic cylinders for driving the adjusting sleeve to move along the axial direction of the barrel core, the cylinder body of the hydraulic cylinder is fixedly arranged on the movable die, and the end part of the piston rod of the hydraulic cylinder is fixedly connected with the adjusting sleeve.

By adopting the technical scheme, before the plastic barrel is subjected to injection molding, the movement stroke of the piston rod of the hydraulic cylinder is adjusted, and then the distance between the end part of the adjusting sleeve and one end of the barrel core close to the static mold is adjusted; when injection molding is carried out, the movable mold drives the connecting plate, the barrel core and the adjusting sleeve to move towards the static mold, one side of the connecting plate props against the static mold to limit the movable mold and the barrel core to continue moving towards the static mold, and when the outer wall of the adjusting sleeve is tightly attached to the side wall of the mold cavity, the outer wall of the barrel core and the side wall of the top of the adjusting sleeve form an injection molding cavity, so that injection molding production can be carried out; the mould can adjust the height of the plastic barrel in a stepless way, and meets different production requirements.

The present invention may be further configured in a preferred embodiment as: one end of the adjusting sleeve, which is close to the movable mold, is connected with a fixing ring for fixing a piston rod of the hydraulic cylinder.

By adopting the technical scheme, the wall of the plastic barrel is generally thin, the wall thickness of the adjusting sleeve is the same as that of the plastic barrel, and the fixed ring is convenient for the fixed connection of the piston rod and the adjusting sleeve.

The present invention may be further configured in a preferred embodiment as: install a plurality of connecting rods between connecting plate and the movable mould, set up the sliding hole that supplies the connecting rod to pass on the solid fixed ring, be provided with the scale that is used for observing the adjusting collar to plastic drum height dimension regulating variable on the outer wall of connecting rod.

Through adopting above-mentioned technical scheme, connecting rod fixed connection is between connecting plate and movable mould, and in actual production, when the plastic drum size height that moulds plastics out has the deviation with anticipated target, can audio-visually observe the regulating variable and the deviation of adjusting collar to the chamber of moulding plastics through the position between solid fixed ring and the scale, can stop moulding plastics, and the relative position of rethread pneumatic cylinder piston rod's flexible volume adjustment adjusting collar and bucket core.

The present invention may be further configured in a preferred embodiment as: the last movable mounting of connecting rod has the reinforcement sleeve that supplies solid fixed ring to support, is provided with two reinforcement sleeves and is located solid fixed ring's both sides on every connecting rod.

Through adopting above-mentioned technical scheme, before moulding plastics, confirm that the adjusting collar is to moulding plastics strong regulating variable after, fix one of them boss on the connecting rod, the piston rod promotes solid fixed ring and tightly supports one side at this boss, tightly supports another boss in solid fixed ring's opposite side afterwards, and further the regulating variable of accurate control adjusting collar to the chamber of moulding plastics.

The present invention may be further configured in a preferred embodiment as: and a plurality of fixing rods are connected between the movable mold and the barrel core, and the fixing rods are uniformly arranged along the circumferential direction of the barrel core and are perpendicular to the movable mold.

Through adopting above-mentioned technical scheme, under the straightness condition of hanging down that does not influence bucket core and movable mould during operation, can save the length of bucket core with save material through the connection of fixed rod.

The present invention may be further configured in a preferred embodiment as: the plastic bucket ejecting mechanism is characterized in that an ejector rod used for ejecting a plastic bucket after demoulding is installed in the bucket core along the axis direction, the top end of the ejector rod is flush with the top end of the bucket core and is tightly attached to the top end of the bucket core, the bottom of the ejector rod penetrates through the movable mould and extends out of the movable mould, a fixed block is installed at one end of the ejector rod extending out of the movable mould, a return spring is arranged around the outer side of the end of the ejector rod, one end of the return spring is abutted against the fixed block, the other end of the return spring is abutted against the movable mould, the ejector rod always tends to move away from the bucket core under the action of the return spring, and.

By adopting the technical scheme, the limiting block is propped against the movable die under the action of the return spring during injection molding, and the upper end of the ejector rod is flush and attached to the upper end of the barrel core; during demolding, the movable die moves away from the static die, the fixed block at the lower end of the ejector rod props against the base after the ejector rod moves for a certain distance along with the movable die, and the top of the ejector rod ejects the inner wall of the bottom of the plastic barrel out of the barrel core to finish demolding; when carrying out the next time of moulding plastics, the movable mould removes to quiet mould, and the ejector pin is kept away from the base along with the movable mould motion, and afterwards under reset spring's effect, the stopper supports the movable mould, and the ejector pin accomplishes and resets.

The present invention may be further configured in a preferred embodiment as: the upper end fixedly connected with of ejector pin takes over a business, the dead slot that supplies to take over a business to deposit is seted up to the tip of bucket core, and the degree of depth of dead slot is the same with taking over a business thickness.

Through adopting above-mentioned technical scheme, when the drawing of patterns, the contact of apical disk and plastic drum inner wall increases the area of contact of ejector pin and plastic drum, when avoiding the ejecting plastic drum of ejector pin, the plastic drum atress is too concentrated and is caused the damage.

The present invention may be further configured in a preferred embodiment as: the adjusting sleeve outer wall is provided with an exhaust groove along the length direction, one end of the exhaust groove penetrates through one end, close to the bottom of the die cavity, of the adjusting sleeve, and the other end of the exhaust groove extends to the fixing ring.

By adopting the technical scheme, during injection molding, air in the injection molding cavity is discharged from the exhaust groove, the injection molding amount in industrial production can be adjusted, and a small part of redundant injection molding raw material is filled at one end of the exhaust groove close to the bottom of the mold cavity and is cut after being separated from the plastic barrel during demolding.

To sum up, the utility model discloses a following at least one beneficial effect:

1. before the plastic barrel is subjected to injection molding, the hydraulic cylinder is adjusted, and then the distance between the end part of the adjusting sleeve and one end of the barrel core close to the static mold is adjusted, so that the height of the plastic barrel can be adjusted in a stepless manner, and different requirements are met;

2. in actual production, when the size height of the plastic barrel subjected to injection molding does not reach an expected target, the adjustment amount and deviation amount of the adjusting sleeve to the injection molding cavity can be visually observed through the position between the fixing ring and the scale, injection molding can be stopped, and then the relative position of the adjusting sleeve and the barrel core is adjusted through the telescopic amount of the piston rod of the hydraulic cylinder;

3. during demolding, the movable mold moves away from the static mold, the fixed block at the lower end of the ejector rod props against the base after the ejector rod moves along with the movable mold for a certain distance, and the top disc at the upper end of the ejector rod ejects the inner wall of the bottom of the plastic barrel out of the barrel core to complete demolding; the plastic barrel is taken out without manpower or other equipment, so that the cost is saved.

Drawings

FIG. 1 is an overall sectional view of the present embodiment;

FIG. 2 is an enlarged view of the point A in FIG. 1;

fig. 3 is an enlarged schematic view of B in fig. 1.

In the figure, 1, a base; 2. static molding; 21. a mold cavity; 22. an injection molding port; 3. moving the mold; 31. a barrel core; 311. a top rod; 312. a top tray; 313. a fixed block; 314. a return spring; 315. a limiting block; 316. an empty groove; 32. fixing the rod; 33. a connecting plate; 331. a through hole; 34. a connecting rod; 35. a drive rod; 341. calibration; 342. a reinforcing sleeve; 4. an adjusting sleeve; 41. a fixing ring; 411. a slide hole; 42. a hydraulic cylinder; 43. an exhaust groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a plastic drum injection mold, including base 1, movable mould 3 and the quiet mould 2 of movable mounting on base 1 that set up from bottom to top. The die cavity 21 and the injection molding opening 22 penetrating through the die cavity 21 communicated with the static die 2 are formed in the static die 2, the movable die 3 is vertically and fixedly provided with a plurality of fixing rods 32, one end of each fixing rod 32 far away from the movable die 3 is fixedly connected with a barrel core 31 used for being matched with the die cavity 21 to mold the plastic barrel, and the fixing rods 32 are uniformly distributed along the circumferential direction of the barrel core 31. And a plurality of driving rods 35 are installed on one side of the movable mold 3 close to the base 1, and the driving rods 35 penetrate through the base 1 to be connected with external driving equipment and drive the movable mold 3 to work.

Referring to fig. 1 and 2, the outer wall of the barrel core 31 is movably sleeved with an adjusting sleeve 4 for adjusting the height of the formed plastic barrel, the inner wall of the adjusting sleeve 4 is always tightly attached to the outer wall of the barrel core 31, and the wall thickness of the adjusting sleeve 4 is the same as that of the plastic barrel. One end of the adjusting sleeve 4 close to the movable mold 3 is connected with a fixed ring 41. A plurality of hydraulic cylinders 42 are vertically installed on the movable mold 3, and the hydraulic cylinders 42 are uniformly distributed along the circumferential direction of the fixed ring 41. The cylinder body of the hydraulic cylinder 42 is fixedly arranged on the movable die 3, and the piston rod of the hydraulic cylinder 42 is fixedly connected to the bottom of the fixed ring 41 and drives the fixed ring 41 to move the adjusting sleeve 4 along the axis of the barrel core 31.

Referring to fig. 1 and 2, a connecting plate 33 is fixedly mounted on the movable mold 3, a through hole 331 for moving the adjusting sleeve 4 is formed in the middle of the connecting plate 33, and the diameter of the through hole 331 is the same as that of the mold cavity 21. A plurality of connecting rods 34 are fixedly connected between the movable mold 3 and the connecting plate 33. The outer edge of the fixing ring 41 is provided with a sliding hole 411 for the connecting rod 34 to pass through, and the sliding holes 411 are uniformly distributed along the circumferential direction. The outer wall of the adjusting sleeve 4 is further provided with an exhaust groove 43 along the length direction, one end of the exhaust groove 43 penetrates through to the end, close to the bottom of the die cavity 21, of the adjusting sleeve 4, and the other end of the exhaust groove 43 extends to the fixing ring 41.

Referring to fig. 1 and 3, the outer wall of the connecting rod 34 is provided with a scale 341 for observing the adjustment amount of the height dimension of the plastic bucket by the adjusting sleeve 4, and the connecting rod 34 is fixedly connected between the connecting plate 33 and the movable mold 3. Each connecting rod 34 is provided with two reinforcing sleeves 342, the reinforcing sleeves 342 are fixed on the connecting rod 34 in a bolt fastening mode, and the two reinforcing sleeves 342 are distributed on two sides of the fixing ring 41. In actual production, when the size height of the plastic barrel which is subjected to injection molding does not reach the expected target, the adjustment amount and deviation amount of the adjusting sleeve 4 to the injection molding cavity can be observed through the position between the fixing ring 41 and the scale 341, the injection molding can be stopped, after the adjustment amount of the adjusting sleeve 4 to the injection molding cavity is redetermined, one reinforcing sleeve 342 is fixed on the connecting rod 34, the piston rod pushes the fixing ring 41 to tightly abut against one side of the reinforcing sleeve 342, then the other reinforcing sleeve 342 is tightly abutted against the other side of the fixing ring 41, and the adjustment amount of the adjusting sleeve 4 to the injection molding cavity is further accurately controlled.

Referring to fig. 1, an ejector rod 311 for ejecting the plastic barrel after demolding is movably installed in the barrel core 31, a top plate 312 for increasing a contact surface with the inner wall of the plastic barrel is fixedly connected to the top of the ejector rod 311, an empty slot 316 for storing the top plate 312 is formed in one end of the barrel core 31 close to the bottom of the mold cavity 21, and the thickness of the top plate 312 is the same as that of the empty slot 316. The bottom of the push rod 311 penetrates through the movable die 3 and extends out of the movable die 3, and a fixed block 313 is fixedly mounted at the bottom of the push rod 311. The outer wall of one end of the ejector rod 311 extending out of the movable mold 3 is provided with a return spring 314 in a winding manner, one end of the return spring 314 abuts against the fixed block 313, and the other end abuts against the movable mold 3. Under the action of the return spring 314, the push rod 311 always tends to move away from the barrel core 31, and a limit block 315 for limiting the movement stroke of the push rod 311 is fixedly arranged between the barrel core 31 and the movable die 3 of the push rod 311.

The implementation principle of the embodiment is as follows:

before the plastic barrel is subjected to injection molding, the hydraulic cylinder 42 is adjusted, and then the distance between the end part of the adjusting sleeve 4 and one end of the barrel core 31 close to the static die 2 is adjusted, so that the height of the plastic barrel can be adjusted in a stepless manner, and different production requirements are met.

When injection molding is carried out, the movable mold 3 drives the connecting plate 33, the barrel core 31 and the adjusting sleeve 4 to move towards the static mold 2, one side of the connecting plate 33 is abutted against the static mold 2, and the movable mold 3 and the barrel core 31 are limited to continue moving towards the static mold 2. The outer wall of the adjusting sleeve 4 is tightly attached to the die cavity 21 on the static die 2, and the side wall of the die cavity 21, the outer wall of the barrel core 31 and the side wall of the adjusting sleeve 4 close to the bottom of the die cavity 21 form an injection molding cavity. Meanwhile, the limiting block 315 is propped against the movable mold 3 under the action of the return spring 314, the ejector rod 311 always tends to move towards the base 1, and the top end of the top disk 312 is flush with and tightly attached to the top end of the barrel core 31; during demolding, the movable mold 3 moves away from the stationary mold 2, after the ejector rod 311 moves along with the movable mold 3 for a distance, one end of the ejector rod 311 close to the base 1 props against the base 1, and at the moment, the top disc 312 on the ejector rod 311 ejects the inner wall of the bottom of the plastic barrel out of the barrel core 31 to complete demolding. When the next injection molding is carried out, the movable mold 3 moves towards the stationary mold 2, the ejector rod 311 moves away from the base 1 along with the movable mold 3, then under the action of the return spring 314, the limiting block 315 abuts against the movable mold 3, the top disc 312 is completely positioned in the empty groove 316, and the ejector rod 311 finishes the return.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, 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. A plastic drum mould which is characterized in that: comprises a base (1) arranged from bottom to top, a movable mould (3) movably arranged on the base (1) and a static mould (2), wherein the static mould (2) is provided with a mould cavity (21) with a downward opening and an injection molding opening (22) penetrating through the static mould (2) and communicating the mould cavity (21), the movable mould (3) is fixedly provided with a barrel core (31) used for matching the mould cavity (21) to form a plastic barrel, the movable mould (3) is also fixedly provided with a connecting plate (33), the connecting plate (33) is provided with a through hole (331) for the barrel core (31) to pass through, the diameter of the through hole (331) is the same as that of the mould cavity (21), the outer wall of the barrel core (31) is movably sleeved with an adjusting sleeve (4) used for adjusting the height of the formed plastic barrel, and the inner wall and the outer wall of the adjusting sleeve (4) are always closely attached to the outer wall of, one side of the movable die (3) close to the movable die (3) is provided with a plurality of hydraulic cylinders (42) for driving the adjusting sleeves (4) to move along the axial direction of the barrel core (31), the cylinder bodies of the hydraulic cylinders (42) are fixedly arranged on the movable die (3), and the end parts of piston rods of the hydraulic cylinders (42) are fixedly connected with the adjusting sleeves (4).

2. A plastic bucket mold as defined in claim 1 wherein: one end of the adjusting sleeve (4) close to the movable mold (3) is connected with a fixing ring (41) for fixing a piston rod of a hydraulic cylinder (42).

3. A plastic bucket mold as defined in claim 2 wherein: install a plurality of connecting rods (34) between connecting plate (33) and movable mould (3), set up slide opening (411) that supply connecting rod (34) to pass on solid fixed ring (41), be provided with scale (341) that are used for observing adjusting collar (4) to plastic drum height dimension regulating variable on the outer wall of connecting rod (34).

4. A plastic bucket mold as defined in claim 3 wherein: the connecting rods (34) are movably provided with reinforcing sleeves (342) for the fixing rings (41) to abut against, and each connecting rod (34) is provided with two reinforcing sleeves (342) and positioned on two sides of each fixing ring (41).

5. A plastic bucket mold as defined in claim 1 wherein: a plurality of fixing rods (32) are connected between the movable die (3) and the barrel core (31), and the fixing rods (32) are uniformly arranged along the circumferential direction of the barrel core (31) and are perpendicular to the movable die (3).

6. A plastic bucket mold as defined in claim 5 wherein: install one in bucket core (31) along the axis direction and be used for ejecting ejector pin (311) of plastic drum after the drawing of patterns, ejector pin (311) top flushes and closely laminates with bucket core (31) top, and the bottom of ejector pin (311) passes movable mould (3) and extends outside movable mould (3), fixed block (313) are installed to the one end that ejector pin (311) extend outside movable mould (3), and this end outside of ejector pin (311) is equipped with reset spring (314), the one end and the fixed block (313) butt of reset spring (314), the other end butt in movable mould (3), under reset spring's (314) effect, ejector pin (311) have all the time towards the trend of keeping away from bucket core (31) motion, ejector pin (311) still fixed mounting has a stopper (315) of restriction ejector pin (311) motion stroke between bucket core (31) and movable mould (3).

7. A plastic bucket mold as defined in claim 6 wherein: one end of the ejector rod (311) close to the barrel core (31) is fixedly connected with a top disc (312), an empty groove (316) for storing the top disc (312) is formed in the end portion of the barrel core (31), and the depth of the empty groove (316) is the same as the thickness of the top disc (312).

8. A plastic bucket mold as defined in claim 2 wherein: the outer wall of the adjusting sleeve (4) is provided with an exhaust groove (43) along the length direction, one end of the exhaust groove (43) penetrates through one end, close to the bottom of the die cavity (21), of the adjusting sleeve (4), and the other end of the exhaust groove (43) extends to the fixing ring (41).