CN210501202U

CN210501202U - Bottle cap mold

Info

Publication number: CN210501202U
Application number: CN201921401856.4U
Authority: CN
Inventors: 郭亮
Original assignee: SHANGHAI ZIRI PACKAGING CO Ltd
Current assignee: SHANGHAI ZIRI PACKAGING CO Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-12
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to a compression moulding mould equipment technical field discloses a bottle lid mould, and it includes mould, lower mould, die holder and screens subassembly. The upper die and the lower die holder are respectively fixedly connected to compression molding equipment, the lower die is arranged on the lower die holder, the lower die can be matched with the upper die to form a die cavity, a marking groove used for forming a bottle cap mark is formed in the lower die, and a thread groove used for forming a bottle cap internal thread is formed in the upper die. The screens subassembly enables the lower mould joint and goes up mould and/or joint die holder to make the lower mould can't go up the mould relatively and rotate, and then can guarantee in the bottle lid compression moulding production process, the initiating terminal of thread groove can not change with the relative position in mark groove, can not take place the skew relatively the internal thread initiating terminal of bottle lid with the bottle lid mark on the bottle lid of guaranteeing compression moulding, guarantees the accuracy that follow-up gas tightness was judged.

Description

Bottle cap mold

Technical Field

The utility model relates to a compression moulding mould equipment technical field especially relates to a bottle lid mould.

Background

In the automatic packaging process, after the bottled beverage is packaged by the machine to complete the bottle cap screwing, the machine generally needs to detect and judge whether the bottle cap screwing is in place or not, and further determines whether the air tightness reaches the standard or not. And the judgment of the air tightness by the bottle cap mark is a common mode.

As shown in fig. 1-2, a cap mark 101 is provided on an outer sidewall of the bottle cap 100 corresponding to an inner thread start 102 of the bottle cap 100; meanwhile, a bottle mouth mark 201 is arranged on the bottle cap ring of the bottle mouth 200 corresponding to the starting end of the bottle mouth thread. If the difference angle between the bottle cap mark 101 and the bottle opening mark 201 of the beverage packaged by the knob is within a certain range, such as within 10 degrees, the bottle cap 100 is screwed in place, and the air tightness reaches the standard, otherwise, the air tightness does not reach the standard. Wherein, the bottle cap mark 101 and the bottle mouth mark 201 are respectively formed by compression molding in a compression molding process by using respective molds.

Generally, when the bottle cap mold is used for compression molding a bottle cap, the starting end of the thread groove on the upper mold is over against the marking groove on the lower mold, so that the bottle cap mark on the produced bottle cap is over against the starting end of the internal thread of the bottle cap. However, the lower die can be clamped between the upper die and the lower die seat in a manner of rotating around the axis of the lower die. When injection pressure of injection molding equipment for injecting raw materials into a mold cavity is large, the lower mold can rotate around the axis of the lower mold relative to the upper mold, so that the mark groove is deviated and cannot be aligned to the starting end of the thread groove, finally, the bottle cap mark on the produced bottle cap cannot be aligned to the inner thread starting end of the bottle cap, namely, the bottle mouth mark and the bottle cap mark lose the effect of judging whether the bottle cap is screwed in place, and a machine cannot normally judge whether the packaging air tightness reaches the standard or not, so that normal production is influenced.

Therefore, it is urgently needed to provide a bottle cap mold, which can ensure that the relative position between the starting end of the thread groove and the marking groove is not changed in the bottle cap compression molding production process, so as to ensure that the bottle cap mark on the compression molded bottle cap does not deviate relative to the inner thread starting end of the bottle cap, and ensure the accuracy of subsequent air tightness judgment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bottle lid mould can guarantee in the bottle lid compression moulding production process, and the initiating terminal of thread groove can not change with the relative position in mark groove to guarantee that the internal thread initiating terminal that the bottle lid mark on the fashioned bottle lid of compression moulding can not bottle lid relatively takes place the skew, guarantees the accuracy that follow-up gas tightness was judged.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a bottle lid mould, includes mould, lower mould and die holder, go up the mould with die holder difference fixed connection is on compression moulding equipment, the lower mould set up in on the die holder, the lower mould can with it forms the die cavity to go up the mould cooperation, just go up the mould and offer and be used for forming the internal screw thread groove of bottle lid, offer the mark groove that is used for forming the bottle lid mark on the lower mould, its characterized in that, the bottle lid mould still includes:

the clamping assembly is configured to enable the lower die to be clamped with the upper die and/or the lower die seat, so that the lower die cannot rotate relative to the upper die.

Optionally, one of the lower die and the lower die holder is provided with a first clamping groove, the other one of the lower die and the lower die holder is provided with a first clamping convex block, and the first clamping convex block can be clamped in the first clamping groove, so that the lower die cannot rotate relative to the lower die holder and the upper die.

Optionally, the lower die base comprises a lower die support and a base, the lower die is sleeved on the lower die support, and the lower die support is sleeved on the base.

Optionally, the lower die support with be provided with the second screens lug on one of the base, be provided with the second screens groove on another, second screens lug cooperation joint the second screens groove, so that the lower die support can't be relative the base rotates.

Optionally, the number of the first clamping lugs is at least two, and at least two the first clamping lugs are non-uniformly distributed around the upper end surface of the lower die support, and/or the number of the second clamping lugs is at least two, and at least two the second clamping lugs are non-uniformly distributed around the lower end surface of the lower die support.

Optionally, the number of the first locking projection and the number of the second locking projection are respectively one.

Optionally, one of the upper die and the lower die is provided with a third clamping convex block, the other is provided with a third clamping groove, and the third clamping convex block can be clamped in the third clamping groove, so that the lower die cannot rotate relative to the upper die.

Optionally, the upper die is further provided with a plurality of weight reduction protruding strips, and the weight reduction protruding strips divide the thread groove into a plurality of sections.

Optionally, the lower die holder further comprises a locking member, and the locking member is configured to lock the lower die and the lower die holder on the base so as to limit the movement of the lower die and the lower die holder in a direction perpendicular to the base.

Optionally, the lower die is further provided with a plurality of anti-slip grooves for forming anti-slip teeth on the outer wall of the bottle cap, and the size and/or shape of the anti-slip grooves are different from those of the marking grooves.

The beneficial effects of the utility model reside in that:

the utility model discloses a bottle lid mould, its mould and die holder difference fixed connection are on compression moulding equipment, and the lower mould sets up on the die holder, and the lower mould can form the die cavity with last mould cooperation, and offers the mark groove that is used for forming the bottle lid mark on the lower mould, goes up the mould and offers and be used for forming the internal thread groove of bottle lid. The screens subassembly enables the lower mould joint and goes up mould and/or joint die holder to make the lower mould can't go up the mould relatively and rotate, and then can guarantee in the bottle lid compression moulding production process, the initiating terminal of thread groove can not change with the relative position in mark groove, can not take place the skew relatively the internal thread initiating terminal of bottle lid with the bottle lid mark on the bottle lid of guaranteeing compression moulding, guarantees the accuracy that follow-up gas tightness was judged.

Drawings

Fig. 1 is a corresponding structural schematic diagram of a bottle cap mark of a bottle cap and a bottle mouth mark of a bottle mouth in the prior art;

fig. 2 is a schematic view showing the correspondence between cap marks of a prior art bottle cap and the start of internal threads of the bottle cap;

fig. 3 is a schematic view of a disassembly structure of the bottle cap mold provided by the present invention;

FIG. 4 is a schematic view of a lower mold structure provided by the present invention;

fig. 5 is a schematic view of the disassembly structure of the lower die holder provided with the locking member.

In the figure:

100-bottle cap; 101-bottle cap marking; 102-start of internal thread; 200-bottle mouth; 201-bottle mouth marking;

1-upper mould; 11-thread groove; 12-weight-reduction ribs;

2-lower mould; 21-a first clamping groove; 22-a marker slot;

3-a lower die holder; 31-lower die holder; 311-a first clamping convex block; 312-a second detent bump; 32-a base; 321-a second clamping groove; 33-locking member.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 3-4, the bottle cap mold provided in this embodiment is mainly used for producing a bottle cap by compression molding. The bottle cap die comprises an upper die 1, a lower die 2 and a lower die base 3. Wherein, go up mould 1 and die holder 3 fixed connection respectively on compression moulding equipment, lower mould 2 sets up on die holder 3, and lower mould 2 can form the die cavity with last mould 1 cooperation, and offers the mark groove 22 that is used for forming the bottle lid mark on the lower mould 2, goes up mould 1 and offers the thread groove 11 that is used for forming the internal thread of bottle lid. Specifically, a core mold column is convexly arranged on the upper mold 1, and a thread groove 11 is annularly arranged on the outer peripheral wall of the end part of the core mold column; a die cavity is formed in the lower die 2, the marking groove 22 is formed in the inner side wall of the die cavity, and the lower die 2 is detachably sleeved on the lower die base 3. In actual compression molding production, the core mold column is inserted into the mold cavity to form a mold cavity for compression molding the bottle cap in a matching manner, and the mark groove 22 is ensured to be opposite to the starting end of the thread groove 11 in matching assembly, so that the bottle cap with the bottle cap mark opposite to the starting end of the internal thread of the bottle cap can be produced.

However, when the injection pressure of the injection molding equipment for injecting the raw material into the mold cavity is high, the lower mold 2 rotates around its own axis relative to the upper mold 1, so that the marking groove 22 is deviated and cannot be aligned with the starting end of the thread groove 11, that is, the marking groove 22 is randomly deviated in the compression molding process, and finally the bottle cap marking loses the function of judging whether the bottle cap is screwed in place, and the normal judgment of whether the sealing airtightness reaches the standard cannot be performed, which affects the normal production. In order to solve the problem, as shown in fig. 3-4, in this embodiment, the bottle cap mold further includes a clamping component, where the clamping component enables the lower mold 2 to be clamped to the upper mold 1 and/or clamped to the lower mold base 3, so that the lower mold 2 cannot rotate relative to the upper mold 1, and further it can be ensured that, in the production process of bottle cap compression molding, the relative position between the start end of the thread groove 11 and the mark groove 22 does not change, so as to ensure that the bottle cap mark on the bottle cap formed by compression molding does not deviate relative to the start end of the internal thread of the bottle cap, ensure the accuracy of subsequent air tightness judgment, and avoid the production loss caused by the deviation of the.

In order to limit the rotation of the lower die 2 relative to the upper die 1, a first clamping groove 21 is formed in one of the lower die 2 and the lower die holder 3, a first clamping convex block 311 is formed in the other one of the lower die 2 and the lower die holder 3, and the first clamping convex block 311 can be clamped in the first clamping groove 21, so that the lower die 2 cannot rotate relative to the lower die holder 3 and the upper die 1. Specifically, as shown in fig. 3, the first detent groove 21 is opened on the lower die 2; the first locking protrusion 311 is disposed on the lower mold base 3 and is integrally formed with the lower mold base 3; the first locking protrusion 311 is locked with the first locking groove 21, so as to limit the lower mold 2 to rotate relative to the upper mold 1.

In addition, in other embodiments, it may also be designed that one of the upper die 1 and the lower die 2 is provided with a third position-locking protrusion, and the other of the upper die 1 and the lower die 2 is provided with a third position-locking groove, and the third position-locking protrusion can be locked in the third position-locking groove, so that the lower die 2 cannot rotate relative to the upper die 1, and the purpose of limiting the rotation of the lower die 2 relative to the upper die 1 can also be achieved. However, in the continuous compression molding process, the upper die 1 and the lower die 2 need to be repeatedly disassembled and assembled and aligned, and the lower die 2 does not need to be disassembled after being assembled on the lower die base 3 basically, so that compared with the case that a third clamping convex block is arranged on one of the upper die 1 and the lower die 2 to limit the lower die 2 to rotate relative to the upper die 1, the bottle cap die can be assembled quickly by a worker in a design mode that a first clamping convex block 311 is arranged on one of the lower die 2 and the lower die base 3, and the production is convenient.

Because in the actual compression molding production process, need change to use many types of lower mould 2, in order to reduce the design volume of lower mould 2, reduce the design cost. As shown in fig. 3, in this embodiment, the lower mold 2 and the lower mold base 3 are designed separately, and the lower mold 2 has a small volume and is flexible to replace.

During compression molding, a lower die socket for inserting the lower die 2 is formed in the lower die base 3, the lower die 2 is inserted into the lower die socket, and raw materials are conveyed into the die cavity through a flow channel formed in the lower die base 3. After the compression molding is completed, in order to facilitate cleaning of the lower die holder 3, further, the lower die holder 3 is separately designed into a lower die support 31 and a base 32. Wherein, the lower mold 2 is sleeved on the lower mold support 31, and the lower mold support 31 is sleeved on the base 32. The lower die base 3 is designed into two split parts of a lower die support 31 and a base 32, so that the lower die support 31 is convenient to disassemble for cleaning and maintenance; on the other hand, do not design lower mould support 31 and lower mould 2 into an organic whole structure, can be so that the staff to the lower mould 2 of different shapes, the lower mould support 31 of nimble change different grade type, and need not directly change whole die holder 3, and then make the design of bottle lid mould more nimble, convenient to use is high-efficient.

In order to avoid rotation of the lower mold holder 31 relative to the base 32 during compression molding. Further, as shown in fig. 3-4, one of the lower mold support 31 and the base 32 is provided with a second locking protrusion 312, the other of the lower mold support 31 and the base 32 is provided with a second locking groove 321, and the second locking protrusion 312 is engaged with the second locking groove 321 in a matching manner, so that the lower mold support 31 cannot rotate relative to the base 32.

Specifically, as shown in fig. 3, the second catching groove 321 is opened at an outer circumferential position of an upper end of the base 32; the second locking protrusion 312 is disposed on the outer periphery of the lower end surface of the lower die holder 3, and the second locking protrusion 312 and the lower die holder 31 are integrally formed. The second locking protrusion 312 is locked with the second locking groove 321, so as to limit the lower mold holder 31 from rotating relative to the base 32. Meanwhile, in the present embodiment, the first locking protrusion 311 is disposed on the outer circumference of the upper end surface of the lower mold support 31, and the first locking groove 21 on the lower mold 2 is locked with the first locking protrusion 311 of the lower mold support 31, that is, the lower mold support 31 is locked with the lower mold 2. Therefore, the lower die 2 cannot rotate relative to the base 32 and the upper die 1.

In the present embodiment, the first locking protrusion 311 is locked with the first locking groove 21, and the second locking protrusion 312 is locked with the second locking groove 321, which together form a locking assembly that prevents the lower mold 2 from rotating relative to the upper mold 1.

Further, the second locking projection 312 and the first locking projection 311 ultimately function to restrict the rotation of the lower mold 2 relative to the upper mold 1. However, during actual assembly, when the number of the first locking protrusions 311 is designed to be two and the first locking protrusions are distributed around the upper end surface of the lower die support 31 at 180-degree included angles, the worker easily installs the lower die 2 at 180-degree dislocation, and then the marking groove 22 does not correspond to the starting end of the thread groove 11 according to the originally designed corresponding position during assembly, so that the bottle cap marking of the produced bottle cap is not meaningful in judging the sealing performance of the bottle cap, and the equipment is misjudged, and unnecessary loss is caused.

In order to avoid the dislocation of the installation position of the lower mold 2, the number of the first locking projections 311 is at least two, and the at least two first locking projections 311 are non-uniformly distributed around the upper end surface of the lower mold support 31, and/or the number of the second locking projections 312 is at least two, and the at least two second locking projections 312 are non-uniformly distributed around the lower end surface of the lower mold support 31. Due to the uneven distribution of the first locking projections 311 and/or the second locking projections 312, the mounting position of the lower mold 2 can be prevented from being dislocated.

In this embodiment, as shown in fig. 3 to 4, the number of the first locking protrusions 311 and the number of the second locking protrusions 312 are three, the three first locking protrusions 311 are sequentially distributed around the upper end surface of the lower mold support 31 at 90 degree included angles along the counterclockwise direction, the corresponding first locking grooves 21 are also three, and the three first locking grooves 21 are sequentially distributed around the lower end surface of the lower mold 2 at 90 degree included angles along the counterclockwise direction. And three second screens lug 312 is 90 degrees contained angles along the anticlockwise and encircles around distributing in proper order at the lower terminal surface of lower mould support 31, corresponding second screens groove 321 also is three, three second screens groove 321 is 90 degrees contained angles along the anticlockwise and encircles around distributing at the base 32 up end in proper order, the staff of can being more convenient for of this kind of design installs lower mould 2 on lower die holder 3 correctly, avoid the mounted position dislocation of lower mould 2, and lead to mark groove 22 not to just to the initiating terminal of thread groove 11 according to original design, produce the problem of bottle lid defective products.

In other embodiments, other methods may be adopted to prevent the lower mold 2 from being misplaced, for example, the number of the first locking protrusions 311 and the second locking protrusions 312 is one, so that the rotation is limited, and the lower mold 2 can be prevented from being misplaced.

Further, in order to reduce the weight of the compression-molded bottle cap, as shown in fig. 3, the upper die 1 is further provided with a plurality of weight-reducing protrusions 12, and the thread groove 11 is divided into a plurality of sections by the weight-reducing protrusions 12, so that the total amount of raw materials required for forming the internal thread of the bottle cap is reduced, and finally the purpose of reducing the weight of the bottle cap is achieved.

In addition, in order to facilitate the consumers to easily attach and detach the bottle cap of the beverage bottle, as shown in fig. 4, the lower mold 2 is further provided with a plurality of anti-slip grooves for forming anti-slip teeth on the outer wall of the bottle cap, the size and/or shape of the anti-slip grooves are different from the size and/or shape of the mark groove 22, and specifically, in this embodiment, the length of the mark groove 22 is half of the length of the anti-slip grooves. Since the shape and/or size of the anti-slip groove is different from the shape and/or size of the marking groove 22, the shape and/or size of the anti-slip tooth of the finally produced bottle cap is also different from the shape and/or size of the marking of the bottle cap, thereby not influencing the judgment of the marking of the sealing performance.

Because the lower die 2 is sleeved on the lower die support 31, after the lower die support 31 is sleeved on the base 32, the lower die 2 and the lower die support 31 are still unstable in position fixation, the lower die 2 and the lower die support 31 can move along the direction perpendicular to the base 32, and the influence on production caused by the movement of the lower die 2 and the lower die support 31 along the direction perpendicular to the base 32 is avoided in the continuous production process. Further, as shown in fig. 5, the lower die holder 3 further includes a locking member 33, and the locking member 33 can lock the lower die 2 and the lower die holder 31 on the base 32, so as to limit the movement of the lower die 2 and the lower die holder 31 in a direction perpendicular to the base 32, thereby achieving the purpose of locking the lower die 2 and the lower die holder 31 on the lower die holder 32, and ensuring the stability of continuous operation.

Specifically, as shown in fig. 5, the locking member 33 is provided with a through hole, an inner wall of one end of the through hole is provided with an internal thread, and an inner wall of the other end is annularly provided with a limiting protrusion; after lower mould 2 cover was located on lower mould support 31, the upper end of lower mould 2 can partially run through the through-hole, and the up end periphery position of lower mould 2 is partly supported and is pressed in spacing bellied lower lateral wall, the lower extreme of lower mould support 31 is then pressed and is pressed in the up end of base 32, and the internal thread of retaining member 33 is then with the external screw thread threaded connection on the lateral wall of base 32, finally with lower mould 2, lower mould support 31 locking on base 32, avoid mould 2, lower mould support 31 to remove along the direction of perpendicular to base 32, influence production.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a bottle lid mould, includes mould (1), lower mould (2) and die holder (3), go up mould (1) with die holder (3) fixed connection respectively is on compression moulding equipment, lower mould (2) set up in on die holder (3), lower mould (2) can with last mould (1) cooperation forms the die cavity, just go up mould (1) and offer and be used for forming internal screw thread groove (11) of bottle lid, offer on lower mould (2) and be used for forming mark groove (22) of bottle lid mark, its characterized in that, the bottle lid mould still includes:

the clamping assembly is configured to enable the lower die (2) to be clamped with the upper die (1) and/or the lower die holder (3), so that the lower die (2) cannot rotate relative to the upper die (1).

2. The bottle cap mold according to claim 1, wherein one of the lower mold (2) and the lower mold base (3) is provided with a first retaining groove (21), and the other one of the lower mold (2) and the lower mold base (3) is provided with a first retaining protrusion (311), and the first retaining protrusion (311) can be clamped in the first retaining groove (21) so that the lower mold (2) cannot rotate relative to the lower mold base (3) and the upper mold (1).

3. The bottle cap mold according to claim 2, wherein the lower mold base (3) comprises a lower mold support (31) and a base (32), the lower mold (2) is sleeved on the lower mold support (31), and the lower mold support (31) is sleeved on the base (32).

4. The mold for bottle caps as claimed in claim 3, wherein one of the lower mold frame (31) and the base (32) is provided with a second locking protrusion (312), and the other one is provided with a second locking groove (321), and the second locking protrusion (312) is engaged with the second locking groove (321) so that the lower mold frame (31) cannot rotate relative to the base (32).

5. The mold for bottle caps as claimed in claim 4, wherein the number of the first catching projections (311) is at least two, and at least two of the first catching projections (311) are non-uniformly distributed around the upper end surface of the lower mold support (31), and/or the number of the second catching projections (312) is at least two, and at least two of the second catching projections (312) are non-uniformly distributed around the lower end surface of the lower mold support (31).

6. The mold for bottle caps as claimed in claim 4, wherein the number of the first catching projections (311) and the second catching projections (312) is one, respectively.

7. The bottle cap mold according to claim 1, wherein one of the upper mold (1) and the lower mold (2) is provided with a third positioning protrusion, and the other one of the upper mold and the lower mold is provided with a third positioning groove, and the third positioning protrusion can be clamped in the third positioning groove, so that the lower mold (2) cannot rotate relative to the upper mold (1).

8. The mold for bottle caps as defined in claim 1, wherein said upper mold (1) is further provided with a plurality of weight-reduction ribs (12), said weight-reduction ribs (12) dividing said thread groove (11) into a plurality of segments.

9. The mold for bottle caps as claimed in claim 3, wherein the lower base (3) further comprises a locking member (33), the locking member (33) is configured to lock the lower mold (2) and the lower mold support (31) to the base (32) to limit the movement of the lower mold (2) and the lower mold support (31) in a direction perpendicular to the base (32).

10. The mold for bottle caps according to claim 1, wherein the lower mold (2) further defines a plurality of anti-slip grooves for forming anti-slip teeth on the outer wall of the bottle caps, and the anti-slip grooves are different from the marking grooves (22) in size and/or shape.