CN219235859U

CN219235859U - Capping die

Info

Publication number: CN219235859U
Application number: CN202223281817.XU
Authority: CN
Inventors: 黄佰胜; 陈玉麟; 林可贵; 余志强
Original assignee: Heping Huayi Plastic Products Co ltd
Current assignee: Heping Huayi Plastic Products Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-06-23
Anticipated expiration: 2032-12-06

Abstract

The utility model provides a cap die, which comprises an upper die assembly and a lower die assembly, wherein the lower die assembly comprises a die plate assembly and a lower die assembly arranged on the die plate assembly, an adjusting hole is formed in the die plate assembly, and the lower die assembly comprises a core, a tooth die, an adjusting gear and an adjusting gear ring; the mold core is arranged in the template assembly and partially protrudes out of the template assembly; the tooth mold is sleeved on the mold core, the upper part of the tooth mold protrudes out of the mold plate assembly, and the lower part of the tooth mold is provided with an adjusting gear ring; the adjusting gear is arranged in the template assembly and is meshed with the adjusting gear ring; the adjusting screw at least partially stretches into the template assembly from the adjusting hole, and the part of the adjusting screw stretching into the adjusting hole is connected with the adjusting gear. The tooth mold and the mold core are mutually independent structures, the adjusting gear can be rotated through the adjusting screw, the angle of the tooth mold is adjusted, the relative angle between the tooth mold and the mold core can be directly adjusted through the adjusting screw under the condition that the lower mold assembly is not required to be disassembled, the operation is simple, and the required adjusting time is short.

Description

Capping die

Technical Field

The utility model relates to the field of mold equipment, in particular to a cap mold.

Background

In some threaded rotary members, the rotary members are assembled with the assembly member by threads, and the rotary members are in the form of caps, bottle caps and the like, and the assembly member is in the form of a bottle, a pipeline and the like, and the caps are provided with threads, so that the possibility of loosening of threads exists in the long-time transportation or use process. In order to avoid the cap from loosening, a self-locking structure is arranged on the cap, for example, a limiting tooth is arranged on the inner wall of the spiral cap or the end face abutting against the assembly part, and a limiting protrusion matched with the limiting tooth is also arranged in the assembly part. When the cap is assembled with the assembly part through threads, the limit protrusions and the limit teeth are matched to achieve the self-locking effect of the cap.

Most of the caps are formed by injection molding, and the positions of the limiting teeth influence the rotation tightness. Before injection molding of the cap, the angle of the limiting teeth needs to be checked and adjusted so as to ensure that the cap can keep proper tightness when the limiting teeth are matched with the limiting protrusions. However, the adjustment of the angle of the limiting teeth requires the disassembly and assembly of the mold again to adjust the relative angle of the tooth mold and the mold core, and has the defects of complex operation and long adjustment time of angle adjustment.

Disclosure of Invention

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a capping die, so as to solve the technical problems of complex operation and long adjustment time of the angle adjustment of the tooth die in the capping die in the prior art.

One of the purposes of the utility model is realized by adopting the following technical scheme:

the cap mold comprises an upper mold assembly and a lower mold assembly, wherein the upper mold assembly comprises an upper mold plate and an upper mold arranged on the upper mold plate, the lower mold assembly comprises a mold plate assembly and a lower mold assembly arranged on the mold plate assembly, an adjusting hole is formed in the mold plate assembly, and the lower mold assembly comprises a mold core, a tooth mold, an adjusting gear and an adjusting gear ring;

the mold core is arranged in the template assembly, and part of the mold core protrudes out of the template assembly and is used for forming the inner shape of the cap;

the tooth die is sleeved on the core, the upper part of the tooth die protrudes out of the template assembly and is used for forming limiting teeth on the cap, and an adjusting gear ring is arranged at the lower part of the tooth die;

the adjusting gear is arranged in the template assembly and meshed with the adjusting gear ring;

the adjusting screw at least partially stretches into the template assembly from the adjusting hole, and the part of the adjusting screw stretching into the adjusting hole is connected with the adjusting gear and used for driving the adjusting gear to rotate.

Optionally, a locking hole is formed in the template assembly;

the lower die assembly further comprises a pressing block and a locking screw, the pressing block is arranged in the die plate assembly, one part of the pressing block is abutted against the tooth die, and the other part of the pressing block is connected with the die plate assembly through the locking screw; the locking screw at least partially stretches into the template assembly from the locking hole, and the part of the locking screw stretching into the template assembly is connected with the pressing block to lock the pressing block.

Optionally, the template assembly includes the lower bolster, be equipped with on the lower bolster with locking screw corresponds the locking hole that sets up with the regulation hole.

Optionally, the tooth mold comprises a sleeve and a disc positioned at the lower part of the sleeve, the sleeve is sleeved at the upper end of the core, the upper end of the sleeve is provided with a forming part for forming the limit teeth, and the disc is provided with the adjusting gear ring;

the pressing block is abutted against the disc.

Optionally, the template assembly further comprises a first template positioned below the lower template, and a rotary groove and a gear groove adjacent to and communicated with the rotary groove are formed in the first template;

the disc is arranged in the rotary groove, and the adjusting gear is arranged in the gear groove.

Optionally, the lower die assembly further comprises a mandrel drive assembly coupled to the mandrel for driving the mandrel in forward and reverse rotation.

Optionally, the core drive assembly includes power component and drive gear group, power component with drive gear group connects, drive gear group set up in the template subassembly, drive gear assembly with the core is connected.

Optionally, the template assembly further comprises a second template, and a transmission gear groove for installing the transmission gear set is formed in the second template;

the core passes through the transmission gear groove;

the transmission gear set is arranged in the transmission gear groove, and one transmission gear in the transmission gear set is sleeved on the core;

the power assembly is connected to the second template and at least partially extends into the second template.

Optionally, the power component comprises a push rod and a rack, the push rod is connected with the rack to push the rack to reciprocate, the rack stretches into the template component, and the rack is connected with a transmission gear set in the template component to drive the transmission gear set to operate.

Optionally, the pitch circle diameter of the adjusting gear ring is larger than the pitch circle diameter of the adjusting gear.

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

in the cap mould, the tooth mould and the mould core are mutually independent structures, namely, the structure of the forming limit tooth and the structure of the inner shape of the forming cap are mutually independent. When the mold core or the tooth mold is designed, the angle problem between the tooth mold and the mold core is not required to be calculated and considered, and the design requirement and difficulty are reduced. In addition, when in actual use, the adjusting gear can be rotated through the adjusting screw, so that the angle of the tooth mold can be adjusted through the engagement of the adjusting gear and the tooth mold, the relative angle between the tooth mold and the mold core can be directly adjusted through the adjusting screw under the condition that the lower mold assembly is not required to be disassembled, and the operation is simple and the required adjusting time is short.

Drawings

FIG. 1 is a schematic perspective view of a cap mold of the present utility model;

FIG. 2 is a schematic perspective view of the cap mold removal upper mold assembly of the present utility model;

FIG. 3 is a top view of the cap mold removal upper mold assembly of the present utility model;

FIG. 4 is a cross-sectional view of AA in FIG. 3;

FIG. 5 is a schematic view of the lower mold assembly of the cap mold of the present utility model with the lower mold plate removed;

FIG. 6 is a schematic view of the lower mold assembly of the cap mold of the present utility model with the lower mold plate and the first mold plate removed;

fig. 7 is a schematic diagram showing the cooperation of the lower die assembly, the adjusting assembly and the driving gear set in the cap die of the present utility model.

Reference numerals illustrate:

1. an upper template;

2. a template assembly; 21. a lower template; 211. an adjustment aperture; 212. a locking hole; 213. a die hole; 22. a first template; 23. a second template; 24. a third template;

3. a lower die assembly; 31. a core; 311. a first thread; 312. a second thread; 32. tooth mold; 321. adjusting the gear ring; 322. a sleeve; 323. a disc;

4. an adjustment assembly; 41. an adjusting gear; 42. an adjusting screw; 43. briquetting; 44. locking a screw;

5. a mandrel drive assembly; 51. a power assembly; 511. a push rod; 512. a rack; 52. a drive gear set; 53. a nut;

6. a bottom plate.

Detailed Description

The present utility model will be further described with reference to fig. 1 to 7 and the detailed description, wherein, on the premise of no conflict, new embodiments can be formed by any combination of the embodiments or technical features described below.

The utility model provides a mold for a rotating member, the rotating member is in the specific form of a cap, a bottle cap and the like, the cap mold is taken as an example, and as shown in fig. 1 and 5, the cap mold comprises an upper mold assembly and a lower mold assembly, the upper mold assembly comprises an upper mold plate 1 and an upper mold arranged on the upper mold plate 1, the lower mold assembly comprises a mold plate assembly 2, a lower mold assembly 3 and an adjusting assembly 4, and the lower mold assembly 3 comprises a mold core 31 and a tooth mold 32. The adjustment assembly 4 includes an adjustment gear 41 and an adjustment screw 42.

Specifically, as shown in fig. 2 or 4, the core 31 is disposed on the die plate assembly 2 and partially protrudes from the die plate assembly 2, and the protruding portion is used for forming the internal shape of the cap, and the structure formed by the core 31 includes threads located in the cap. The tooth mold 32 is independent of the core 31, and when the tooth mold 32 is assembled, the core 31 is sleeved with the tooth mold 32 for forming limiting teeth on the cap, the upper part of the tooth mold 32 protrudes out of the template assembly 2, the tooth mold 32 is provided with an adjusting gear ring 321, and the adjusting gear ring 321 is positioned in the template assembly 2. An adjusting gear 41 is provided in the die plate assembly 2, and the adjusting gear 41 is engaged with the adjusting ring gear 321.

The die plate assembly 2 is provided with an adjusting hole 211, and an adjusting screw 42 extends into the die plate assembly 2 from the adjusting hole 211 and at least partially extends into the die plate assembly 2. Specifically, the adjusting screw 42 may extend into the adjusting hole 211 partially or fully, and the portion of the adjusting screw 42 extending into the template assembly 2 is connected to the adjusting gear 41 to drive the adjusting gear 41 to rotate.

In the present embodiment, a structure in which the tooth mold 32 and the core 31 are independent of each other, that is, a structure in which the spacing tooth is formed and a structure in which the internal shape of the cap is formed are independent of each other is provided. When the core 31 or the tooth mold 32 is designed, the angle problem between the tooth mold 32 and the core 31 does not need to be calculated and considered, so that the design requirement and the difficulty are reduced. In addition, in actual use, the adjusting gear 41 may be rotated by the adjusting screw 42, so that the angle of the tooth mold 32 is adjusted by the engagement of the adjusting gear 41 with the tooth mold 32, and even if the adjusting screw 42 is completely immersed in the die plate assembly 2, the adjusting screw 42 may be rotated after being inserted from the adjusting hole 211 by a tool. Therefore, in the present application, the relative angle between the tooth mold 32 and the core 31 can be directly adjusted by the adjusting screw 42 without disassembling the lower mold assembly, and the operation is simple and the required adjusting time is short.

Further, as shown in fig. 2 and 3, the form assembly 2 is provided with a locking hole 212.

As shown in fig. 4 and 5, the adjusting assembly 4 further includes a pressing block 43 and a locking screw 44, the pressing block 43 is disposed in the template assembly 2, a part of the pressing block 43 abuts against the tooth mold 32, specifically may be an adjusting gear ring 321 for pressing the tooth mold 32, and another part of the pressing block 43 is connected with the template assembly 2 through the locking screw 44. The locking screw 44 extends at least partially into the die plate assembly 2 and the locking screw 44 extends from the locking aperture 212 into the die plate assembly 2. The portion of the locking screw 44 extending into the die plate assembly 2 is connected with the pressing block 43 to lock the pressing block 43. When the locking screw 44 is partially inserted into the locking hole 212, the locking screw 44 can be directly rotated from the outside of the form assembly 2; the locking screw 44 may also be rotated by inserting a tool into the locking hole 212 when the locking screw 44 is fully submerged into the locking hole 212.

In this embodiment, the adjusting gear ring 321 of the tooth mold 32 is pressed by the pressing block 43, and the distance between the pressing block 43 and the template assembly 2 is adjusted by the locking screw 44, so that the degree of pressing the tooth mold 32 by the pressing block 43 is adjusted. When the angle of the tooth mold 32 needs to be adjusted, the tightness of the tooth mold 32 is adjusted by the locking screw 44, so that the resistance born by the tooth mold 32 when rotating is reduced; then the angle of the tooth mold 32 is adjusted by an adjusting screw 42; after the angle is adjusted, the tooth mold 32 is locked by the locking screw 44, so that the tooth mold 32 is prevented from rotating.

In some embodiments of the template assembly 2, as shown in fig. 4, the template assembly 2 includes a lower template 21, where the lower template 21 is located below the upper template 1, and locking holes 212 and adjusting holes 211 corresponding to the locking screws 44 are provided on the lower template 21.

In addition, the lower die plate 21 is provided with a die hole 213 through which the upper portion of the tooth die 32 and the upper portion of the core 31 pass, that is, the lower die plate 21 is provided with an adjusting hole 211, a locking hole 212 and a die hole 213. The upper ends of the core 31 and the tooth mold 32 protrude from the mold hole 213 to the lower die plate 21.

In some further embodiments of the lower die plate 21, a platen groove is provided on the lower die plate 21, a heat-dissipating platen is provided in the platen groove, and a heat-conducting pipe is provided in the heat-dissipating platen. The heat radiation pressing plate is a structure with special functions on the lower die plate 21, and the adjusting hole 211, the locking hole 212 and the die hole 213 are all composed of two parts, wherein one part of the adjusting hole 211, the locking hole 212 and the die hole 213 is positioned on the lower die plate 21 body, and the other part of the adjusting hole 211, the locking hole 212 and the die hole 213 is positioned on the heat radiation pressing plate. Of course, it is also possible to consider that the heat radiation pressing plate is provided with the adjustment hole 211, the locking hole 212, and the mold hole 213, and the adjustment hole 211, the locking hole 212, and the mold hole 213 penetrate the lower die plate 21.

In some embodiments of the tooth mold 32, as shown in fig. 7, the tooth mold 32 includes a sleeve 322 and a disc 323 located at the lower part of the sleeve 322, the sleeve 322 is sleeved on the upper end of the core 31, a forming part for forming a limiting tooth is provided at the upper end of the sleeve 322, the disc 323 is located in the template assembly 2, and an adjusting gear ring 321 is provided on the disc 323. The pressing block 43 abuts against the disk 323 on the tooth mold 32. The tooth mold 32 takes the sleeve 322 as a main body structure, forms a sleeving relation with the mold core 31 through the sleeve 322, and forms a locking state and a releasing state of the tooth mold 32 through the matching of the disc 323 and the pressing block 43, thereby improving the control convenience of the tooth mold 32.

In some further embodiments of the die plate assembly 2, as shown in fig. 5, the die plate assembly 2 further includes a first die plate 22 positioned below the lower die plate 21, the first die plate 22 having a rotational slot and a gear slot adjacent to and in communication with the rotational slot. The disc 323 is disposed in the rotation groove, and the adjusting gear 41 is disposed in the gear groove. A rotation groove is provided in the first die plate 22 to increase the rotation space and the installation space for the tooth die 32, and a gear groove is provided in the first die plate 22 to provide the rotation space and the installation space for the adjusting gear 41. In addition, the first template 22 is closer to the lower template 21 than the second template 23 and the third template 24 below, i.e., the first template 22 is closer to the upper surface of the lower template 21, so that the adjusting screw 42 and the locking screw 44 are conveniently shortened, or the depths of the adjusting screw 42 and the locking screw 44 are reduced, and the difficulty in using the adjusting screw 42 and the locking screw 44 is reduced.

In some embodiments of the lower mold assembly, as shown in fig. 1, the lower mold assembly further includes a mandrel drive assembly 5 coupled to the mandrel 31 to drive the mandrel 31 in forward and reverse rotation. The core 31 is driven to rotate forward and backward by the core driving assembly 5, so that the molded product can be automatically demolded.

Specifically, as shown in fig. 2, 6 and 7, the mandrel driving assembly 5 includes a power assembly 51 and a transmission gear set 52, the power assembly 51 is connected with the transmission gear set 52, the transmission gear set 52 is disposed in the template assembly 2, and the transmission gear set 52 is connected with the mandrel 31. The power assembly 51 transmits power through a drive gear set 52, the drive gear set 52 being connected to the mandrel 31 to transmit power to the mandrel 31 so that the mandrel 31 can rotate in both forward and reverse directions. The mold core 31 rotates through the cooperation of the power assembly 51 and the transmission gear, the tooth mold 32 is limited, and the cap moves upwards relative to the mold core 31 in a rotating way, so that the cap is demolded.

When the mold is released, the tooth mold 32 is locked by the locking screw 44, the cap is kept in a fitted state with the molding portion of the tooth mold 32, the tooth mold 32 restricts the angle of the cap, and the cap can be prevented from rotating with the core 31, so that when the core 31 rotates, the threads in the cap are fitted with the core 31, so that the cap is disengaged from the core 31.

The die plate assembly 2 further comprises a second die plate 23, and a transmission gear groove for installing the transmission gear set 52 is formed on the second die plate 23. The number of drive gear slots may be one, two or another number of more than two. The core 31 passes through the transmission gear grooves, specifically, when the number of transmission gear grooves is one, the core 31 passes through the transmission gear grooves, and when the number of transmission gears is two or more, the core 31 passes through one of the transmission gear grooves. The transmission gear sets 52 are arranged in transmission gear grooves, and transmission gears in the transmission gear sets 52 are arranged in one-to-one correspondence with the transmission gear grooves. In the transmission gear groove through which the core 31 passes, one transmission gear of the transmission gear set 52 is disposed in the transmission gear groove, and at the same time, the transmission gear is also disposed on the core 31, specifically, the transmission gear is sleeved on the core 31 and connected by a spline. The power assembly 51 is connected to the second die plate 23 and extends at least partially into the second die plate 23.

In this embodiment, the second template 23 is added, and the transmission gear groove is formed through the second template 23, so as to increase the installation space and the rotation space for the transmission gear set 52.

The screw pitch of the screw thread on many caps is great, and core 31 when rotatory, the cap can produce great drawing of patterns stroke for drawing of patterns speed, and the cap can twist fast when using simultaneously and change dismouting. However, this also causes the cap to rapidly disengage from the tooth form 32, causing the cap to rotate with the mandrel 31, affecting the stripping effect. In a further embodiment of the mandrel drive assembly 5, as shown in fig. 4, 6 and 7, the mandrel drive assembly 5 further includes a nut 53, the nut 53 is coupled to the die plate assembly 2, the nut 53 is further sleeved on the mandrel 31, and the nut 53 is threadedly engaged with the mandrel 31. The connection between the nut 53 and the template assembly 2 may specifically be that the nut 53 is connected to the template assembly 2 through a fastener, or is disposed in a limiting groove for limiting in the template assembly 2, so that the rotation of the nut is limited by the template assembly 2. The core 31 has a first thread 311 and a second thread 312, and the core 31 forms a screw of the cap by the first thread 311 and is engaged with the nut 53 by the second thread 312. The first thread 311 and the second thread 312 have the same rotation direction, and the pitch of the first thread 311 is greater than that of the second thread 312. In this embodiment, the cooperation of the power assembly 51, drive gear and nut 53 enables axial displacement of the core 31 during demolding to retract into the die plate assembly 2. Thus, when demoulding, the core 31 is driven to move under the action of the threads of the nut 53, so that the cover cap can prolong the time matched with the tooth mould 32 while maintaining the demoulding effect, the limit time of the tooth mould 32 is prolonged, and the demoulding effect is improved.

In addition, the template assembly 2 is further provided with a third template 24, the third template 24 is provided with a nut groove, the core 31 passes through the nut groove, the nut 53 is arranged in the nut groove, and the nut 53 is in threaded connection with the core 31. In this embodiment, a third template 24 is added to the template assembly 2 to provide a mounting space and a limiting structure for the nut 53.

With respect to the die plate assembly 2, in a further embodiment thereof, the lower die plate 21, the first die plate 22, the second die plate 23, and the third die plate 24 are arranged in order from top to bottom. The first die plate 22 is provided with a first bearing for mounting the upper portion of the core 31, and the third die plate 24 is also provided with a second bearing for mounting the lower portion of the core 31. The core 31 is arranged on the first template 22 and the third template 24 through bearings, so that the stability and smoothness of the rotation of the core 31 are improved.

For the foregoing power assembly 51, specifically, as shown in fig. 6, the power assembly 51 includes a push rod 511 and a rack 512, the push rod 511 is connected with the rack 512 to push the rack 512 to reciprocate, the rack 512 extends into the template assembly 2, specifically, extends into the second template 23, and the rack 512 is connected with the driving gear set 52 located in the template assembly 2 to drive the driving gear set 52 to operate.

To improve the adjustment accuracy of the adjustment screw 42, in some embodiments, the pitch diameter of the adjustment gear ring 321 is greater than the pitch diameter of the adjustment gear 41. In this way, a reduction transmission is formed, the rotational speed of the tooth mold 32 is reduced, and the accuracy of adjusting the tooth mold 32 is improved.

Of course, in the present utility model, the lower die assembly further includes a bottom plate 6, the bottom plate 6 being located below the third die plate 24.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. The cap mold comprises an upper mold assembly and a lower mold assembly, and is characterized in that the lower mold assembly comprises a template assembly, a lower mold assembly and an adjusting assembly, wherein an adjusting hole is formed in the template assembly;

the lower die assembly comprises a core and a tooth die, wherein the core is arranged in the die plate assembly, and part of the core protrudes out of the die plate assembly and is used for forming the inner shape of the cap;

the adjusting assembly comprises an adjusting gear and an adjusting screw, the adjusting gear is arranged in the template assembly, and the adjusting gear is meshed with the adjusting gear ring;

2. The cap mold according to claim 1, wherein the die plate assembly is provided with a locking hole;

the adjusting assembly further comprises a pressing block and a locking screw, the pressing block is arranged in the template assembly, one part of the pressing block is abutted against the tooth die, and the other part of the pressing block is connected with the template assembly through the locking screw; the locking screw at least partially stretches into the template assembly from the locking hole, and the part of the locking screw stretching into the template assembly is connected with the pressing block to lock the pressing block.

3. The cap mold according to claim 2, wherein the die plate assembly includes a lower die plate provided with a locking hole and the adjusting hole provided corresponding to the locking screw.

4. The cap die as claimed in claim 3, wherein the tooth die comprises a sleeve and a disc positioned at the lower part of the sleeve, the sleeve is sleeved at the upper end of the core, the upper end of the sleeve is provided with a forming part for forming the limit teeth, and the disc is provided with the adjusting gear ring;

the pressing block is abutted against the disc.

5. The cap mold according to claim 4, wherein the die plate assembly further comprises a first die plate positioned below the lower die plate, the first die plate being provided with a rotary groove and a gear groove adjacent to and communicating with the rotary groove;

6. The cap mold of any one of claims 1 to 5, wherein the lower mold assembly further comprises a mandrel drive assembly coupled to the mandrel to drive the mandrel in forward and reverse rotation.

7. The cap mold of claim 6, wherein the mandrel drive assembly comprises a power assembly and a drive gear set, the power assembly being coupled to the drive gear set, the drive gear set being disposed within the platen assembly, the drive gear assembly being coupled to the mandrel.

8. The cap mold according to claim 7, wherein the die plate assembly further comprises a second die plate provided with a transmission gear groove for mounting the transmission gear set;

the core passes through the transmission gear groove;

9. The cap mold of claim 7, wherein the power assembly comprises a push rod and a rack, the push rod being connected with the rack to push the rack to reciprocate, the rack extending into the die plate assembly, the rack being connected with a driving gear set located in the die plate assembly to drive the driving gear set to operate.

10. The cap mold of claim 1, wherein the pitch diameter of the adjusting ring gear is greater than the pitch diameter of the adjusting gear.