CN218227628U

CN218227628U - Injection mold for degradable disposable bowl

Info

Publication number: CN218227628U
Application number: CN202122451967.XU
Authority: CN
Inventors: 洪艳清
Original assignee: Jinhua Shunhua Daily Necessities Co ltd
Current assignee: Jinhua Shunhua Daily Necessities Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2023-01-06
Anticipated expiration: 2031-10-12

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold for a degradable disposable bowl, which comprises an upper mold and a lower mold; a mold core is arranged on the lower side surface of the upper mold; the upper side surface of the lower die is provided with a cavity, the die core extends into the cavity to form a die cavity for injection molding, and the upper die is provided with an injection molding port communicated with the die cavity; an installation cavity positioned below the cavity is arranged in the lower die, a first channel communicated with the installation cavity is arranged on the upper side surface of the lower die, and a second channel communicated with the installation cavity is arranged on the lower side surface of the cavity and positioned in the middle of the lower side surface of the cavity; a lifting plate is arranged in the mounting cavity through a spring, the spring is used for driving the lifting plate to move upwards, two ends of the lifting plate are respectively provided with a pressure rod extending out of the first channel and a top rod extending out of the second channel, and a top plate used for lifting the disposable bowl is arranged at the end part of the top rod extending into the cavity; through the setting of roof, it can be when accomplishing the back mould that moulds plastics and divide the mould, and is ejecting with disposable bowl automatically to be convenient for take out disposable bowl, improve the work efficiency of the disposable bowl of moulding plastics.

Description

Injection mold for degradable disposable bowl

Technical Field

The utility model relates to an injection mold technical field, specifically speaking relates to an injection mold for degradable disposable bowl.

Background

At present, degradable disposable bowls are mostly manufactured by injection molding of injection molds. Among the prior art, when the disposable bowl is moulded plastics and is accomplished and cool off the back and carry out the drawing of patterns, because the disposable bowl after the shaping is in the die cavity bottom, and laminates mutually with the die cavity inner wall, is difficult for taking out, consequently, has wasted manpower and materials when taking out disposable bowl to the work efficiency of production disposable bowl has been reduced.

SUMMERY OF THE UTILITY MODEL

Have disposable bowl after the shaping to be in the die cavity bottom among the prior art, be difficult for the defect of taking out disposable bowl, the utility model provides an injection mold for degradable disposable bowl. It can realize injection mold automatic with the function of disposable bowl ejection die cavity when carrying out the drawing of patterns, be convenient for take out and then improve work efficiency with disposable bowl.

In order to solve the above technical problem, the present invention solves the above technical problems.

The injection mold for the degradable disposable bowl comprises an upper mold and a lower mold; a mold core is arranged on the lower side surface of the upper mold; the upper side surface of the lower die is provided with a cavity, the die core extends into the cavity to form a die cavity for injection molding, and the upper die is provided with an injection molding port communicated with the die cavity; an installation cavity positioned below the cavity is arranged in the lower die, a first channel communicated with the installation cavity is arranged on the upper side surface of the lower die, and a second channel communicated with the installation cavity is arranged on the lower side surface of the cavity and positioned in the middle; the installation intracavity is equipped with the lifter plate through the spring, and the spring is used for driving the lifter plate to shift up, and the both ends of lifter plate are equipped with the depression bar that stretches out first passageway respectively and stretch out the ejector pin of second passageway, and the ejector pin stretches into to be equipped with the roof that is used for the disposable bowl of lifting on the tip of cavity.

Through the utility model discloses the setting of depression bar, lifter plate, ejector pin and roof, it can be when accomplishing the branch mould after moulding plastics, through the reduction of applying the power on the depression bar for the lifter plate is rebound under the effect of spring, thereby makes the roof with fashioned disposable bowl lifting, thereby is convenient for take out disposable bowl, improves the work efficiency of the disposable bowl of moulding plastics.

Preferably, a first walking channel and a second walking channel which are communicated with each other are arranged in the ejector rod, a rotating column which stretches into the first walking channel is arranged on the top plate, a third walking channel is arranged in the rotating column, a fixing rod which stretches into the second walking channel is arranged in the installation cavity, a spiral strip-shaped plate which stretches into the third walking channel is arranged at the upper end of the fixing rod, a baffle is arranged at an opening of the third walking channel, a communication port which is matched with the strip-shaped plate is formed in the baffle, and the spring pushes the ejector rod to move upwards to drive the baffle to move upwards along the strip-shaped plate in a rotating mode.

The utility model discloses in, through rotating the post, the setting of strip shaped plate, can drive when the ejector pin shifts up and rotate the post and shift up, because the strip shaped plate is fixed motionless, consequently in the process of rotating the post and shifting up in the same direction as the rotation of strip shaped plate through the baffle, thereby realize rotating the rotatory upward shift of post, thereby it shifts up to drive the roof to rotate, owing to mould plastics and accomplish and cool off the back, disposable bowl can the adhesion on the roof, consequently, the rotation of roof can make disposable bowl and roof break away from each other, thereby after with disposable bowl lifting, take out disposable bowl more conveniently, manpower and materials are saved, the work efficiency of the disposable bowl of moulding plastics has been improved.

Preferably, a bearing installation groove is formed in the opening of the first road, and a bearing used for installing the rotating column is arranged in the bearing installation groove.

The utility model discloses in, through the setting of bearing, can realize the rotation of rotation post better.

Preferably, the top plate is provided with a blade along the circumferential direction for cutting burrs at the bottom of the disposable bowl.

The utility model discloses in, through the setting of blade for at the in-process of the disposable bowl of the rotatory lifting of roof, the blade can be got rid of the bottom deckle edge of disposable bowl.

Preferably, one end of the pressing rod extending out of the lower die is provided with a first convex block along the circumferential direction of the pressing rod, the lower side face of the upper die is provided with a fixing groove for the pressing rod to extend into, and a second convex block matched with the first convex block and used for fixing the pressing rod is arranged in the fixing groove.

The utility model discloses in, through the setting of first lug and second lug, when carrying out the compound die, the depression bar stretches into the fixed slot, first lug and the mutual block of second lug under the effect of external force, and then when moulding plastics and accomplishing back branch mould, makes the roof carry out the lifting to disposable bowl better under the effect of first lug and second lug to be convenient for taking out of disposable bowl, improved the efficiency of moulding plastics of disposable bowl.

Preferably, the opening of the installation cavity is arranged downwards, the opening of the installation cavity is provided with a plugging plate for plugging the installation cavity, and the fixing rod is arranged on the plugging plate.

The utility model discloses in, through the setting of shutoff board, can realize the dismouting of depression bar, lifter plate and ejector pin better.

Preferably, the lower end part of the ejector rod is provided with a clamping groove, and the lifting plate is provided with a clamping pin which is clamped into the clamping groove along the vertical direction.

The utility model discloses in, through the setting of draw-in groove and bayonet lock, can realize the dismouting between ejector pin and the lifter plate better.

Drawings

FIG. 1 is a schematic view of an injection mold in example 1;

FIG. 2 is a schematic view of an upper mold in example 1;

FIG. 3 is a schematic view of a lower mold in example 1;

FIG. 4 is a schematic view showing a pressing rod, a lifting plate, a jack and a top plate in embodiment 1;

FIG. 5 is a schematic view of the top plate and the rotary post in embodiment 1;

FIG. 6 is a schematic view of a strip plate in example 1;

FIG. 7 is a sectional view of an injection mold in example 1;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

fig. 9 is a partial enlarged view of fig. 7 at B.

The names of the parts indicated by the numerical references in the drawings are as follows:

110. an upper die; 111. an injection molding port; 120. a lower die; 210. a mold core; 220. fixing grooves; 310. a cavity; 320. a top plate; 330. a pressure lever; 340. a blade; 410. a top rod; 420. a lifting plate; 510. rotating the column; 610. a strip plate; 710. a mold cavity; 720. a first channel; 721. a second channel; 730. a spring; 740. fixing the rod; 750. a plugging plate; 760. a mounting cavity; 810. a first bump; 820. a second bump; 910. a first lane; 911. a second lane; 912. a bearing mounting groove; 920. a bearing; 930. a third lane; 940. a baffle plate; 941. a communication port.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.

Example 1

As shown in fig. 1 to 9, the present embodiment provides an injection mold for a degradable disposable bowl, which includes an upper mold 110 and a lower mold 120; a mold core 210 is arranged on the lower side surface of the upper mold 110; the upper side surface of the lower die 120 is provided with a cavity 310, the die core 210 extends into the cavity 310 to form a die cavity 710 for injection molding, and the upper die 110 is provided with an injection molding port 111 communicated with the die cavity 710; a mounting cavity 760 positioned below the cavity 310 is arranged in the lower die 120, a first channel 720 communicated with the mounting cavity 760 is arranged on the upper side surface of the lower die 120, and a second channel 721 communicated with the mounting cavity 760 is arranged on the lower side surface and the middle part of the cavity 310; a lifting plate 420 is arranged in the installation cavity 760 through a spring 730, the spring 730 is used for driving the lifting plate 420 to move upwards, two ends of the lifting plate 420 are respectively provided with a pressure lever 330 extending out of the first channel 720 and a top rod 410 extending out of the second channel 721, and the end of the top rod 410 extending into the cavity 310 is provided with a top plate 320 for lifting the disposable bowl; a first protrusion 810 is disposed along a circumferential direction of one end of the pressing rod 330 extending out of the lower mold 120, a fixing groove 220 for the pressing rod 330 to extend into is disposed on a lower side surface of the upper mold 110, and a second protrusion 820 for fixing the pressing rod 330 is disposed in the fixing groove 220 and is matched with the first protrusion 810.

In this embodiment, when the injection mold is closed, the mold core 210 extends into the cavity 310, so that the upper mold 110 presses the compression rod 330 downwards to drive the spring 730 to compress and make the lifting plate 420 move downwards, further drive the ejector rod 410 to move downwards in the second channel 721, make the top plate 320 move to the bottom wall of the cavity 310, at this time, inject raw materials into the mold cavity 710 through the injection port 111 for injection molding, and demold after cooling to form a disposable bowl; in this embodiment, when the injection mold is closed, the upper mold 110 and the lower mold 120 are fixed by bolts; when demolding is carried out, the bolt is taken out, the upper die 110 moves upwards, the spring 730 pushes the lifting plate 420 to move upwards, the pressure lever 330 is driven to move upwards to extend out of the first channel 720, the ejector rod 410 moves upwards to extend into the cavity 310, the top plate 320 is driven to move upwards in the cavity 310 to jack up the disposable bowl, and therefore the disposable bowl in the die cavity 710 is automatically ejected out during demolding, and the disposable bowl is taken out conveniently. In this embodiment, through the arrangement of the fixing groove 220, the first protrusion 810 and the second protrusion 820, the pressing rod 330 can better move to the outside of the first channel 720 during demolding, thereby ensuring the smooth ejection of the disposable bowl from the top plate 320.

In this embodiment, a first passageway 910 and a second passageway 911 which are communicated with each other are arranged in the top rod 410, a rotating column 510 which extends into the first passageway 910 is arranged on the top plate 320, a third passageway 930 is arranged in the rotating column 510, a fixing rod 740 which extends into the second passageway 911 is arranged in the installation cavity 760, a strip-shaped plate 610 which extends into the third passageway 930 and is in a spiral shape is arranged at the upper end of the fixing rod 740, a baffle 940 is arranged at an opening of the third passageway 930, a communicating opening 941 which is matched with the strip-shaped plate 610 is arranged on the baffle 940, and the spring 730 pushes the top rod 410 to move upwards to drive the baffle 940 to rotate upwards along the strip-shaped plate 610; a bearing installation groove 912 is arranged at the opening of the first road 910, and a bearing 920 for installing the rotating column 510 is arranged in the bearing installation groove 912; the top plate 320 is provided with a blade 340 along the circumference thereof for cutting the burr of the bottom of the disposable bowl.

By the configuration in the present embodiment, the bearing 920 is used to rotatably connect the rotary post 510, so that the rotary post 510 is rotatably mounted on the top rod 410; in this embodiment, when the mold is closed, since the positions of the fixing rod 740 and the strip-shaped plate 610 are fixed, the top plate 320 moves downward to drive the rotating column 510 to move downward, and meanwhile, since the communication port 941 is matched with the strip-shaped plate 610 and the strip-shaped plate 610 is spiral, the rotating column 510 moves downward to make the baffle 940 rotate downward along the strip-shaped plate 610, so that the top plate 320 rotates downward to the bottommost part of the cavity 310; when demolding is carried out, the ejector rod 410 moves upwards to drive the rotating column 510 to move upwards, so that the baffle 940 rotates upwards along the strip-shaped plate 610 to realize that the top plate 320 rotates upwards in the cavity 310, and the bottom of the disposable bowl is adhered to the top plate 320 after the disposable bowl is subjected to injection molding and cooling, so that the disposable bowl is separated from the top plate 320 due to the rotation of the top plate 320, the disposable bowl is conveniently taken out after being lifted, manpower and material resources are saved, and the working efficiency of the injection molding disposable bowl is improved; in this embodiment, when the top plate 320 is located the cavity 310 bottom wall, there is the clearance between the marginal lateral wall of top plate 320 and the lateral wall of cavity 310, and the edge that leads to the disposable bowl end wall after moulding plastics has deckle edge, because the marginal lateral wall of top plate 320 in this embodiment is provided with blade 340 along its circumference for the in-process that top plate 320 moved up in the rotation, blade 340 can be to the deckle edge on disposable bowl end wall edge excision, has guaranteed injection mold's the quality of moulding plastics.

In this embodiment, the opening of the installation cavity 760 is downward, a blocking plate 750 for blocking the installation cavity 760 is disposed at the opening of the installation cavity 760, and the fixing rod 740 is disposed on the blocking plate 750; the lower end of the top rod 410 is provided with a clamping groove, and the lifting plate 420 is provided with a clamping pin which is clamped into the clamping groove along the up-down direction.

With the configuration in this embodiment, the blocking plate 750 is detachably mounted at the opening of the mounting chamber 760 by bolts, which facilitates the mounting of the structure in the mounting chamber 760; through the arrangement of the clamping groove and the clamping pin, the clamping pin is clamped into the clamping groove in the up-down direction to achieve detachable installation between the ejector rod 410 and the lifting plate 420, and when the plugging plate 750 is detached, the lifting plate 420, the ejector rod 410 and the like can be conveniently detached in the installation cavity 760.

The injection mold for degradable disposable bowl of this embodiment, when specifically using, during the compound die, make roof 320 move to cavity 310 bottommost department through extrusion depression bar 330, when moulding plastics and cooling back branch mould, make roof 320 disposable bowl of upwards lifting under the combined action of first lug 810, second lug 820 and spring 730, thereby be convenient for taking out of disposable bowl, because the process that shifts up at roof 320, make roof 320 can rotate under the drive of rotation post 510, thereby blade 340 on the roof 320 can excise the deckle edge that the disposable bowl bottom produced, thereby the use of disposable bowl of being convenient for.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in the claims of the present invention should be included in the scope of the present invention.

Claims

1. A injection mold for disposable bowl of degradable, its characterized in that: comprises an upper die (110) and a lower die (120); a mold core (210) is arranged on the lower side surface of the upper mold (110); the upper side surface of the lower die (120) is provided with a cavity (310), the die core (210) extends into the cavity (310) to form a die cavity (710) for injection molding, and the upper die (110) is provided with an injection molding port (111) communicated with the die cavity (710); an installation cavity (760) positioned below the cavity (310) is arranged in the lower die (120), a first channel (720) communicated with the installation cavity (760) is arranged on the upper side surface of the lower die (120), and a second channel (721) communicated with the installation cavity (760) is arranged on the lower side surface and the middle part of the cavity (310); the lifting plate (420) is arranged in the mounting cavity (760) through the spring (730), the spring (730) is used for driving the lifting plate (420) to move upwards, two ends of the lifting plate (420) are respectively provided with a pressure rod (330) extending out of the first channel (720) and a push rod (410) extending out of the second channel (721), and the end part of the push rod (410) extending into the cavity (310) is provided with a top plate (320) used for lifting the disposable bowl.

2. An injection mold for a degradable disposable bowl as claimed in claim 1 wherein: establish first lane (910) and the second lane (911) of intercommunication in ejector pin (410), be equipped with rotation post (510) that stretch into in first lane (910) on roof (320), be equipped with third lane (930) in rotation post (510), be equipped with dead lever (740) that stretch into in second lane (911) in installation cavity (760), the upper end of dead lever (740) is equipped with and stretches into in third lane (930) and be spiral helicine strip shaped plate (610), the opening part of third lane (930) is equipped with baffle (940), be equipped with on baffle (940) with strip shaped plate (610) matched with intercommunication mouth (941), spring (730) promote ejector pin (410) to shift up and be used for driving baffle (940) along strip shaped plate (610) rotation upward movement.

3. An injection mold for a degradable disposable bowl according to claim 2 wherein: a bearing installation groove (912) is formed in the opening of the first runner (910), and a bearing (920) used for installing the rotating column (510) is arranged in the bearing installation groove (912).

4. An injection mold for a degradable disposable bowl according to claim 2 wherein: the top plate (320) is provided with a blade (340) along the circumference thereof for cutting the burr at the bottom of the disposable bowl.

5. An injection mold for a degradable disposable bowl as claimed in claim 1 wherein: one end of the pressure lever (330) extending out of the lower die (120) is provided with a first convex block (810) along the circumferential direction, the lower side surface of the upper die (110) is provided with a fixed groove (220) for the pressure lever (330) to extend into, and a second convex block (820) matched with the first convex block (810) and used for fixing the pressure lever (330) is arranged in the fixed groove (220).

6. An injection mold for a degradable disposable bowl as claimed in claim 1 wherein: the opening of the installation cavity (760) is arranged downwards, a blocking plate (750) used for blocking the installation cavity (760) is arranged at the opening of the installation cavity (760), and the fixing rod (740) is arranged on the blocking plate (750).

7. An injection mold for a degradable disposable bowl according to claim 6 wherein: the lower end part of the ejector rod (410) is provided with a clamping groove, and the lifting plate (420) is provided with a clamping pin which is clamped into the clamping groove along the vertical direction.