CN217123868U

CN217123868U - Secondary ejection die for food cover

Info

Publication number: CN217123868U
Application number: CN202220886780.4U
Authority: CN
Inventors: 何湾; 陈小豪
Original assignee: Xiamen Junzhongsheng New Material Co ltd
Current assignee: Xiamen Junzhongsheng New Material Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-08-05
Anticipated expiration: 2032-04-18

Abstract

The utility model relates to a mould equipment technical field, especially a food lid secondary ejection die, be in including frame and setting the first template and the second template of mutual adaptation in the frame, be provided with in the frame with ejection mechanism that first template is connected. The first template comprises a plurality of first mold cores and inserts movably arranged on the outer sides of the first mold cores, and elastic blocks are movably arranged on the first mold cores. The ejection mechanism comprises a first moving assembly and a second moving assembly which are sequentially arranged in a high-low mode, the first moving assembly is connected with the insert, the second moving assembly is connected with the elastic block, the insert, the second moving assembly and the elastic block are driven to move when the first moving assembly pushes for the first time, and the insert is driven to jack up the food cover when the first moving assembly pushes for the second time.

Description

Secondary ejection die for food cover

Technical Field

The utility model relates to a mould equipment technical field, especially a food lid secondary ejection mould.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

In the injection molding process of the plastic food cover, because the bottom of the cover body needs to be provided with a convex spoon fixing part, the spoon fixing part has higher extension height and thinner wall surface, the phenomena of incomplete demolding and difficult demolding are easy to occur during demolding; and the food lid area is great, if only through lid outer fringe department application of force drawing of patterns, very easily leads to being located the spoon fixed part in middle part and takes place to damage in the drawing of patterns process, makes the food lid finished product rate reduce, influences production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a food lid secondary ejection die to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a secondary ejection die for a food cover comprises a frame, a first die plate and a second die plate which are arranged in the frame and are mutually matched,

the first template comprises a plurality of first mold cores and inserts movably arranged on the outer sides of the first mold cores, elastic blocks are movably arranged on the first mold cores,

the ejection mechanism comprises a first moving assembly and a second moving assembly which are sequentially arranged in a high-low mode, the first moving assembly is connected with the insert, the second moving assembly is connected with the elastic block, the insert, the second moving assembly and the elastic block are driven to move when the first moving assembly pushes for the first time, and the insert is driven to eject the food cover when the first moving assembly pushes for the second time.

In a further improvement, the first moving assembly comprises a first ejector plate and a second ejector plate, the first ejector plate is provided with a plurality of ejector pins connected with the insert, the second ejector plate is fixedly connected to the first ejector plate and connected with the driving unit,

the second removes the subassembly include with the third thimble board that the bullet piece is connected, the third thimble board with the extrusion is provided with the spring between the frame, be provided with on the third thimble board a plurality of locating parts with frame swing joint.

Further improved, the locating part include with the fixed part of third thimble board rigid coupling and the guide part that sets gradually, spacing portion, be provided with in the frame respectively with guide hole and spacing groove that guide part and spacing portion correspond, the third thimble board remove to spacing portion with when the spacing groove block, the third thimble board stops to remove, first thimble board with the second thimble board continues to remove.

In a further improvement, the third ejector plate and the rack are relatively provided with a first spring groove and a second spring groove, and two ends of the spring are respectively abutted to the first spring groove and the second spring groove.

The improved structure is characterized in that a plurality of ejector rods are fixedly arranged on the third ejector plate, the ejector rods penetrate through the first ejector plate and the second ejector plate and are fixedly connected with the elastic blocks, and the elastic blocks are arranged in the middle of the first mold core.

The improved structure is characterized in that a yielding space is arranged in the rack, and the moving height of the first moving assembly in the yielding space is greater than the height of the limiting groove.

Further improved, one end of the ejector pin is embedded in the first ejector plate, the other end of the ejector pin is locked with the insert through a bolt, and the first ejector plate is locked with the second ejector plate through a bolt.

In a further improvement, a plurality of guide posts are arranged in the rack, and the first ejector pin plate, the second ejector pin plate and the third ejector pin plate can be movably arranged on the guide posts.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model is provided with the insert and the spring block which can move relative to the first mold core and are respectively connected with the first moving component and the second moving component, when the mold is required to be demolded, the first moving component pushes up for the first time to drive the insert, the second moving component and the spring block to move upwards, and at the moment, the food cover is pushed out for the first time, so that the bottom structure of the food cover completes one-time demolding; at the moment, the second moving assembly is limited when moving to a certain position, the first moving assembly continues to move upwards to drive the insert to move upwards again, and the food cover is ejected for the second time, so that secondary demolding is realized. The food cover bottom is provided with a plurality of protruding parts, and through twice ejection demoulding at different positions, the stress area of the food cover is increased, the demoulding difficulty is reduced, and the yield and the production efficiency of the food cover are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a double-ejection mold of the present invention;

fig. 2 is a structural sectional view (first view) of a double ejection die according to the present invention;

fig. 3 is a structural sectional view (second view) of a double ejection die according to the present invention;

fig. 4 is a structural sectional view (third view) of a double ejection die according to the present invention;

fig. 5 is a structural sectional view (fourth view) of a double ejection die according to the present invention;

fig. 6 is a schematic view of the first template in a processing state of the present invention;

fig. 7 is a schematic view of the bottom structure of a food cover according to the present invention;

in the figure:

1. a frame;

11. a guide hole; 12. a limiting groove; 13. a second spring groove; 14. a space of abdicating; 15. a guide post;

2. a first template;

21. a first mold core; 22. an insert; 23. a spring block;

3. a second template;

4. an ejection mechanism;

41. a first moving assembly; 42. a second moving assembly; 411. a first ejector plate; 412. a second ejector plate; 413. a thimble; 421. a third ejector plate; 422. a spring; 423. a limiting member; 424. a top rod; 4211. a first spring groove; 4231. a fixed part; 4232. a guide portion; 4233. a limiting part;

5. a food cover;

51. a spoon fixing part.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1-7, a secondary food cover ejection mold includes a frame 1, and a first mold plate 2 and a second mold plate 3 disposed in the frame 1 and adapted to each other, wherein an ejection mechanism 4 is disposed in the frame 1 and connected to the first mold plate 2. The first template 2 comprises a plurality of first mold cores 21 and inserts 22 movably arranged on the outer sides of the first mold cores 21, elastic blocks 23 are movably arranged on the first mold cores 21, and the first mold cores 21 are fixedly arranged on the rack 1. The ejection mechanism 4 includes a first moving assembly 41 and a second moving assembly 42 which are arranged in sequence, the first moving assembly 41 is connected with the insert 22, the second moving assembly 42 is connected with the elastic block 23, the first moving assembly 41 drives the insert 22, the second moving assembly 42 and the elastic block 23 to move when pushed for the first time, and the first moving assembly 41 drives the insert 22 to eject the food lid 5 when pushed for the second time.

Specifically, the first mold plate 2 and the second mold plate 3 form an injection molding cavity when being buckled, the center of the bottom of the food cover 5 is provided with a spoon fixing part 51 for fixing a plastic spoon, and the first mold core 21 is provided with a plurality of injection molding grooves corresponding to the spoon fixing part 51. The elastic block 23 is movably arranged in the middle of the first mold core 21 and is positioned at the center of the spoon fixing part 51 corresponding to the injection molding groove.

The first moving assembly 41 includes a first ejector plate 411 and a second ejector plate 412, and a plurality of ejector pins 413 are disposed on the first ejector plate 411 and connected to the insert 22. In this embodiment, the first thimble plate 411 and the second thimble plate 412 are fastened by bolts, one end of the thimble 413 with a pull platform is embedded in the first thimble plate 411, and the other end of the thimble 413 is fastened to the insert 22 by bolts.

The second moving assembly 42 includes a third ejector plate 421, a spring 422 is disposed between the third ejector plate 421 and the rack 1 in an extruding manner, a plurality of limiting members 423 are disposed on the third ejector plate 421 and movably connected to the rack 1, when the third ejector plate 421 moves up to a certain distance, the limiting members 423 are limited by the rack 1, and the third ejector plate 421 stops moving. Further, the third ejector plate 421 and the frame 1 are relatively provided with a first spring groove 4211 and a second spring groove 13, two ends of the spring 422 are respectively abutted against the first spring groove 4211 and the second spring groove 13, so as to prevent the spring 422 from falling off, wherein the spring 422 is always kept in a compressed state.

Specifically, the limiting member 423 includes a fixing portion 4231, a guide portion 4232 and a limiting portion 4233 which are sequentially arranged, the cross section of the limiting portion 4233 is larger than that of the guide portion 4232, the fixing portion 4231 and the third ejector plate 421 are locked by screw threads, and a guide hole 11 and a limiting groove 12 which correspond to the guide portion 4232 and the limiting portion 4233 respectively are arranged on the frame 1. When the third ejector plate 421 moves to the position-limiting portion 4233 and the position-limiting groove 12, the third ejector plate 421 stops moving, and the first ejector plate 411 and the second ejector plate 412 continue moving.

Specifically, a plurality of ejector rods 424 are fixedly arranged on the third ejector plate 421, the ejector rods 424 penetrate through the first ejector plate 411 and the second ejector plate 412, and at this time, the first ejector plate 411 and the second ejector plate 412 are slidably arranged on the ejector rods 424. The upper end of the ejector rod 424 is fixedly connected with the elastic block 23, and the fixedly connected mode can be a horizontal pin, so that the pin traverses the elastic block 23 and the body of the ejector rod 424 to realize fixation.

In this embodiment, the bottom of the second ejector plate 412 is connected to a driving unit, and the driving unit is an air cylinder. The piston of the cylinder passes through the bottom plate of the frame 1 and the third ejector plate 421, and is abutted or fixedly connected with the bottom of the second ejector plate 412, when the abutting is adopted, a compression spring can be arranged between the first ejector plate 411 and the frame 1, and the ejector plate is reset when the copying descends. The driving unit can also be a hydraulic cylinder, a motor and other driving mechanisms which can form linear reciprocating motion.

In this embodiment, an abdicating space 14 is provided in the machine frame 1, and the moving height of the first moving component 41 in the abdicating space 14 is greater than the height of the limiting groove 12, so that the first moving mechanism 41 can perform secondary ejection motion.

Preferably, a plurality of guide posts 15 are arranged in the frame 1, and the first ejector plate 411, the second ejector plate 412 and the third ejector plate 421 are movably arranged on the guide posts 15.

The working principle is as follows: during demolding, the driving unit drives the first ejector plate 411 and the second ejector plate 412 to move upwards, so as to drive the insert 22 to move upwards to jack up and demold the outer edge of the food cover 5, a movable space is formed between the bottom of the rack 1 and the second ejector plate 412 while the first ejector plate 411 and the second ejector plate 412 move upwards, the third ejector plate 413 moves upwards under the action of the spring 422 to drive the elastic block 23 to move upwards synchronously to jack up and demold the middle part of the food cover 5, namely, the corresponding position of the spoon fixing part 51 is jacked up and demolded, and at this time, the first ejection motion is performed; after moving up to a certain height, the third ejector plate 413 is limited and does not move any more, the first ejector plate 411 and the second ejector plate 412 continue to move up under the action of the driving unit, the food cover 5 is completely ejected, demolding is completed, and the second ejection motion is performed at this time.

When the ejection mechanism 4 is reset, the driving unit retracts to drive the first ejector plate 411 and the second ejector plate 412 to descend, so that the third ejector plate 413 is pressed downwards, and resetting is completed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A secondary ejection die for a food cover comprises a frame (1), and a first template (2) and a second template (3) which are arranged in the frame (1) and are mutually matched, and is characterized in that,

the first template (2) comprises a plurality of first mold cores (21) and inserts (22) movably arranged on the outer sides of the first mold cores (21), elastic blocks (23) are movably arranged on the first mold cores (21),

the ejection mechanism (4) is arranged in the rack (1) and comprises a first moving assembly (41) and a second moving assembly (42) which are sequentially arranged in a high-low mode, the first moving assembly (41) is connected with the insert (22), the second moving assembly (42) is connected with the elastic block (23), the insert (22), the second moving assembly (42) and the elastic block (23) are driven to move when the first moving assembly (41) is pushed for the first time, and the insert (22) is driven to eject the food cover (5) when the first moving assembly (41) is pushed for the second time.

2. The double ejection mold for food lids as claimed in claim 1, wherein the first moving assembly (41) comprises a first ejector plate (411) and a second ejector plate (412), the first ejector plate (411) is provided with a plurality of ejector pins (413) connected with the insert (22), the second ejector plate (412) is fixed on the first ejector plate (411) and connected with a driving unit,

the second removes subassembly (42) include with third thimble board (421) that bullet piece (23) are connected, third thimble board (421) with the extrusion is provided with spring (422) between frame (1), be provided with on third thimble board (421) a plurality of locating parts (423) with frame (1) swing joint.

3. The secondary food lid ejection mold according to claim 2, wherein the limiting member (423) comprises a fixing portion (4231), a guide portion (4232) and a limiting portion (4233) which are sequentially arranged, the fixing portion (4231) is fixedly connected with the third ejector plate (421), the frame (1) is provided with a guide hole (11) and a limiting groove (12) which respectively correspond to the guide portion (4232) and the limiting portion (4233), when the third ejector plate (421) moves to the limiting portion (4233) and the limiting groove (12) to be engaged, the third ejector plate (421) stops moving, and the first ejector plate (411) and the second ejector plate (412) continue moving.

4. The secondary food cover ejecting die according to claim 3, characterized in that the third ejector plate (421) and the frame (1) are provided with a first spring slot (4211) and a second spring slot (13) relatively, and two ends of the spring (422) abut against the first spring slot (4211) and the second spring slot (13), respectively.

5. The secondary food cover ejection mold according to claim 3, wherein a plurality of ejector rods (424) are fixedly arranged on the third ejector plate (421), the ejector rods (424) penetrate through the first ejector plate (411) and the second ejector plate (412) and are fixedly connected with the elastic blocks (23), and the elastic blocks (23) are arranged in the middle of the first mold core (21).

6. The secondary food cover ejection mold according to claim 3, wherein a relief space (14) is provided in the frame (1), and a moving height of the first moving assembly (41) in the relief space (14) is greater than a height of the limiting groove (12).

7. The secondary food cover ejection mold as claimed in claim 2, wherein one end of the ejector pin (413) is embedded in the first ejector plate (411), the other end of the ejector pin (413) is fastened to the insert (22) by bolts, and the first ejector plate (411) and the second ejector plate (412) are fastened by bolts.

8. The double ejection die for the food lid as recited in claim 2, wherein a plurality of guide columns (15) are arranged in the frame (1), and the first ejector plate (411), the second ejector plate (412) and the third ejector plate (421) are movably arranged on the guide columns (15).