Secondary ejection mold structure for aerial fog cover buckling position demolding
By designing a secondary ejection mold structure for aerosol cover production, the problem that existing molds are difficult to efficiently produce double-layer structure aerosol covers is solved, and more efficient production and more stable products are achieved, reducing mold costs.
Patent Information
- Application Number
- CN202422135458.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-30
AI Technical Summary
It is difficult for existing molds to efficiently produce aerosol covers with double-layer structures, resulting in high mold cost, low production efficiency and low product stability.
A secondary ejection mold structure with aerosol cover buckle position release is designed. Through the combination of the front mold cavity, the rear mold insert, the floating insert, the ejection rod and the push sleeve, the ejection action is achieved and the mold release is smoothly released.
Improve the efficiency and product stability of the production of double-layer structure aerosol covers, and reduce mold costs.
Smart Images
Figure CN222933276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bottle cap production molds, and particularly relates to a secondary ejection mold structure for the snap-off demolding of an aerosol cap. Background Art
[0002] In the prior art, there are various structures of bottle caps. Some structures are simple and can be smoothly produced and demolded with simple injection molds. However, some bottle cap mechanisms are relatively complex, and it is difficult to complete the production with simple injection molds. For example, a double-layer aerosol cap has an outer ring and an inner ring, and there are undercuts on the inner ring. For such products, a mold with an inclined ejector and slider structure is usually required, which results in a high mold cost, and the production efficiency and product stability are not high. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a secondary ejection mold structure for the snap-off demolding of an aerosol cap, which improves the ejector rod and insert of the existing mold structure, enables two ejection actions during mold demolding, and thus can smoothly eject and demold the double-layer aerosol cap, improving the production efficiency and product stability.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A secondary ejection mold structure for the snap-off demolding of an aerosol cap, one end of the aerosol cap is open, including an outer ring cap and an inner ring cap. The inner ring cap is arranged inside the outer ring cap, and there is a clearance space between the side wall of the inner ring cap and the side wall of the outer ring cap. The secondary ejection mold includes a front mold cavity, a rear mold insert, a floating insert, an ejector rod, and a push sleeve. The front mold cavity, the rear mold insert, the floating insert, the ejector rod, and the push sleeve enclose an aerosol cap product cavity. Among them, the front mold cavity, the rear mold insert, and the push sleeve enclose a product cavity corresponding to the outer ring cap, and the front mold cavity, the rear mold insert, the floating insert, and the ejector rod enclose a product cavity corresponding to the inner ring cap. The front mold cavity is arranged in the upper mold. One end of the rear mold insert is fixedly connected to the lower mold, and the other end extends into the product cavity. A conical surface is arranged on the outer side of the middle part of the rear mold insert. The inner wall of the push sleeve is arranged in cooperation with the conical surface. The push sleeve is movably connected to the rear mold insert through the conical surface. The floating insert is arranged inside the rear mold insert and the bottom is flush with the bottom of the rear mold insert. One end of the ejector rod is arranged inside the floating insert, and the other end is connected to an injection molding machine driving device. A positioning pin is arranged on the side wall of the floating insert near the bottom. The middle part of the positioning pin is fixedly connected to the side wall of the floating insert, and both ends of the positioning pin extend out respectively. The inner side wall of the rear mold insert is provided with a first ejection groove for cooperating with the extended end of the positioning pin, and the outer surface of the ejector rod is provided with a second ejection groove for cooperating with the extended end of the positioning pin.
[0006] This scheme makes a secondary ejection improvement on the mold for producing a double-layer structure aerosol cap. The mold includes an upper mold and a lower mold. The upper mold is a movable mold. The front mold cavity, the rear mold insert, the floating insert, the ejector pin, and the push sleeve enclose the aerosol cap product cavity, wherein one end of the locating pin at the bottom of the floating insert is located at the bottom of the first ejection groove of the rear mold insert, and the other end of the locating pin is located at the top of the second ejection groove of the ejector pin. After the injection molding is completed, the upper mold rises first with the front mold cavity during demoulding, and the upper part of the aerosol cap product is exposed. At this time, the injection molding machine drive device drives the ejector pin to move upward, while the rear mold insert is fixed, and the push sleeve moves upward synchronously with the ejector pin. Under the action of the product holding force, the floating insert also drives the locating pin to move upward (in the demoulding direction) synchronously. The push sleeve supports the bottom of the outer ring cover of the aerosol cap, and the ejector pin and the floating insert support the top of the aerosol cap until one end of the locating pin moves When the top of the first ejection groove is blocked, the first ejection step is completed, and the outer ring cover part of the aerosol cover has been demoulded; during the second ejection, the floating insert is blocked by the positioning pin and no longer moves upward, and the ejector rod supports the top of the aerosol cover, and the push sleeve supports the bottom of the outer ring cover of the aerosol cover, and the aerosol cover is pushed upward together, and the other end of the positioning pin located at the top of the second ejection groove does not block the ejector rod from continuing to move, until the other end of the positioning pin originally located at the top of the second ejection groove contacts the bottom of the second ejection groove and blocks the ejector rod from continuing to move, at which time the inner ring cover part of the aerosol cover has been separated from the floating insert, completing the second ejection and demoulding; after taking out the product, the ejector rod and the push sleeve descend and return to their original positions, and the ejector rod drives the floating insert to return to its original position; the inner wall of the push sleeve cooperates with the conical surface of the rear mold insert to realize the downward positioning stop of the push sleeve, and there is no obstacle when the push sleeve moves upward.
[0007] As a preferred solution of the utility model, the secondary ejection mold further includes a push plate, a rear template, a support plate, an ejector plate, an ejector module, and a bottom plate. The ejector module is connected to the injection molding machine drive device through the bottom plate, the ejector plate is connected to the ejector module, one end of the ejector rod is connected to the ejector plate, and the other end passes through the support plate, the rear template, and the floating insert and extends into the product cavity. The ejector rod of this solution is connected to the injection molding machine drive device through the ejector plate and the ejector module, the bottom plate remains stationary as a fixed structure, and the ejector module is driven to move with the ejector plate when it is pushed up by the injection molding machine drive device, and the bottom of the ejector rod is connected and fixed to the ejector plate.
[0008] As a preferred solution of the utility model, the support plate is fixedly connected to the bottom plate, a first spring reset device is provided between the support plate and the ejector plate, the rear template is provided on the upper part of the support plate, a push sleeve is provided on the upper part of the rear template, and a second spring reset device is provided between the rear template and the ejector plate. The first spring reset device of this solution is used as a reset mechanism after the ejector plate moves upward, the rear template and the ejector plate are simultaneously pushed upward by the injection molding machine drive device, the rear template drives the push sleeve to rise, and after demoulding is completed, the second spring reset device drives the rear template to reset, and the push sleeve is reset together with the subsequent template.
[0009] As a preferred embodiment of the present utility model, the push plate is arranged above the rear template, a push sleeve is provided in the middle of the push plate, and the push plate is fixedly connected to the push sleeve. In this embodiment, the push plate is provided to fix the push sleeve in the middle position. The push sleeve can be replaced according to different aerosol cap products, and the push plate is linked with the rear template.
[0010] As a preferred embodiment of the present utility model, one end of the bearing plate is fixedly connected to the rear mold insert, the other end of the rear mold insert passes through the push sleeve and extends into the product cavity, a floating insert is arranged in the rear mold insert, and one end of the floating insert is close to the top of the bearing plate and the other end extends into the product cavity. In this embodiment, the rear mold insert is fixed, the floating insert is arranged in the rear mold insert and is movably connected through a positioning pin, and the rear mold insert and the floating insert can be replaced according to different aerosol cap products.
[0011] As a preferred embodiment of the present utility model, a coolant pipeline is arranged in the ejector rod. The ejector rod in this embodiment is applicable to most aerosol cap products, and the internal coolant pipeline can be cooled during the injection molding production process through the flow of coolant.
[0012] As a preferred embodiment of the present utility model, an injection molding channel is arranged on the front mold cavity.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: the ejector rod and the insert of the existing mold structure are improved, so that two ejection actions can be realized when the mold is demolded, and thus the double-layer aerosol cap can be smoothly ejected and demolded, improving production efficiency and product stability. Description of the Drawings
[0014] Figure 1 It is a schematic structural diagram of an aerosol cap product;
[0015] Figure 2 It is a schematic structural diagram of the present utility model;
[0016] Figure 3 It is a schematic structural diagram of the present utility model when the injection molding is completed;
[0017] Figure 4 It is a schematic structural diagram of the present utility model when the first ejection is performed;
[0018] Figure 5 It is a schematic structural diagram of the present utility model when the second ejection is performed.
[0019] In the figure: 1, aerosol cap; 2, front mold cavity; 3, rear mold insert; 4, floating insert
[0020] 5, ejector rod; 6, push sleeve; 7, positioning pin; 8, push plate
[0021] 9, rear template; 10, bearing plate; 11, ejector plate; 12, ejector module
[0022] 13. Bottom plate, 14. First spring return device, 15. Second spring return device, 16. Coolant pipe, 17. Injection molding channel, 31. Tapered surface
[0023] 32. First ejection groove, 51. Second ejection groove Detailed implementation manners
[0024] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.
[0025] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0027] Please refer to Figures 1-5 , the present utility model provides a technical solution:[[]]END]]
[0028] A secondary ejection mold structure for the demolding of an aerosol cap snap position. One end of the aerosol cap 1 is open, including an outer ring cap and an inner ring cap. The inner ring cap is arranged inside the outer ring cap, and there is a clearance space between the side wall of the inner ring cap and the side wall of the outer ring cap. The secondary ejection mold includes a front mold cavity 2, a rear mold insert 3, a floating insert 4, a ejector rod 5, and a push sleeve 6. The front mold cavity 2, the rear mold insert 3, the floating insert 4, the ejector rod 5, and the push sleeve 6 enclose an aerosol cap product cavity. Among them, the front mold cavity 2, the rear mold insert 3, and the push sleeve 6 enclose a product cavity corresponding to the outer ring cap, and the front mold cavity 2, the rear mold insert 3, the floating insert 4, and the ejector rod 5 enclose a product cavity corresponding to the inner ring cap. The front mold cavity 2 is arranged in the upper mold. One end of the rear mold insert 3 is fixedly connected to the lower mold, and the other end extends into the product cavity. A tapered surface 31 is provided on the outer side of the middle part of the rear mold insert 3. The inner wall of the push sleeve 6 is arranged in cooperation with the tapered surface 31. The push sleeve 6 is positioned and movably connected to the rear mold insert 3 through the tapered surface 31. The floating insert 4 is arranged inside the rear mold insert 3 and its bottom is flush with the bottom of the rear mold insert 3. One end of the ejector rod 5 is arranged inside the floating insert 4, and the other end is connected to the injection molding machine driving device. A positioning pin 7 is provided on the side wall of the floating insert 4 near the bottom. The middle part of the positioning pin 7 is fixedly connected to the side wall of the floating insert 4, and both ends of the positioning pin 7 extend out respectively. A first ejection groove 32 is provided on the inner side wall of the rear mold insert 3 for cooperating with the extended end of the positioning pin 7. A second ejection groove 51 is provided on the outer surface of the ejector rod 5 for cooperating with the extended end of the positioning pin 7.
[0029] The secondary ejection mold further includes a push plate 8, a rear mold plate 9, a bearing plate 10, an ejector pin plate 11, a top module 12, and a bottom plate 13. The top module 12 passes through the bottom plate 13 and is connected to the injection molding machine driving device. The ejector pin plate 11 is connected to the top module 12. One end of the ejector rod 5 is connected to the ejector pin plate 11, and one end passes through the bearing plate 10, the rear mold plate 9, and the floating insert 4 and extends into the product cavity.
[0030] The bearing plate 10 is fixedly connected to the bottom plate 13. A first spring return device 14 is provided between the bearing plate 10 and the ejector pin plate 11. The rear mold plate 9 is arranged above the bearing plate 10. The push sleeve 6 is provided on the upper part of the rear mold plate 9. A second spring return device 15 is provided between the rear mold plate 9 and the ejector pin plate 11.
[0031] The push plate 8 is arranged above the rear mold plate 9. The push sleeve 6 is provided in the middle of the push plate 8. The push plate 8 is fixedly connected to the push sleeve 6.
[0032] The bearing plate 10 is fixedly connected to one end of the rear mold insert 3. The other end of the rear mold insert 3 passes through the push sleeve 6 and extends into the product cavity. The floating insert 4 is arranged inside the rear mold insert 3. One end of the floating insert 4 is close to the top of the bearing plate 10, and the other end extends into the product cavity.
[0033] A coolant pipeline 16 is arranged inside the ejector rod 5.
[0034] An injection channel 17 is provided on the front mold cavity 2.
[0035] Working process of the utility model: After injection molding is completed, when demolding, the upper mold drives the front mold cavity 2 to rise first, and the upper part of the aerosol cap 1 product is exposed. At this time, the driving device of the injection molding machine drives the ejector block 12, the ejector plate 11, the ejector rod 5, and the rear template 9 and the push plate 8 to move upward together. The rear mold insert 3 remains stationary, and the push sleeve 6 moves upward synchronously with the push plate 8 and the ejector rod 5. The floating insert 4 also drives the positioning pin 7 to move upward (in the demolding direction) together under the action of the product holding force. The push sleeve 6 abuts against the bottom of the outer ring cover of the aerosol cap 1, and the ejector rod 5 and the floating insert 4 abut against the top of the aerosol cap 1 until one end of the positioning pin 7 moves from the bottom of the initial first ejection groove 32 to the top of the first ejection groove 32 and is blocked, completing the first ejection step. At this time, the outer ring cover part of the aerosol cap 1 has been demolded;
[0036] During the second ejection, since the floating insert 4 is blocked by the positioning pin 7 and no longer moves upward, while the ejector rod 5 abuts against the top of the aerosol cap 1 and the push sleeve 6 abuts against the bottom of the outer ring cover of the aerosol cap 1, they push the aerosol cap 1 upward together. The other end of the positioning pin 7 located at the top of the initial second ejection groove 51 does not block the ejector rod 5 from continuing to move until the other end of the positioning pin 7 originally located at the top of the second ejection groove 51 contacts the bottom of the second ejection groove 51 and blocks the ejector rod 5 from continuing to move. At this time, the inner ring cover part of the aerosol cap 1 has separated from the floating insert 4, completing the second ejection and demolding;
[0037] After the product is taken out, the ejector block 12 retracts, and the ejector rod 5 and the ejector plate 11 descend and return to their original positions under the action of the first spring return device 14. The push sleeve 6, the push plate 8, and the rear template 9 descend and return to their original positions under the action of the second spring return device 15. At the same time, the ejector rod 5 drives the floating insert 4 to return to its original position under the action of the positioning pin 7.
[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A secondary ejection mold structure for an aerosol cover buckle demoulding, wherein one end of the aerosol cover is open, and the aerosol cover comprises an outer ring cover and an inner ring cover, wherein the inner ring cover is arranged inside the outer ring cover, and there is a gap space between the side wall of the inner ring cover and the side wall of the outer ring cover, wherein: The secondary ejection mold comprises a front mold cavity, a rear mold insert, a floating insert, a ejector rod, and a push sleeve; The front mold cavity, rear mold insert, floating insert, ejector pin and push sleeve form a mold cavity for the aerosol cover product, wherein the front mold cavity, rear mold insert and push sleeve form a mold cavity for the product corresponding to the outer ring cover, and the front mold cavity, rear mold insert, floating insert and ejector pin form a mold cavity for the product corresponding to the inner ring cover; The front mold cavity is arranged in the upper mold, one end of the rear mold insert is fixedly connected to the lower mold, and the other end extends into the product mold cavity, a tapered surface is arranged on the outer side of the middle part of the rear mold insert, the inner wall of the push sleeve is arranged in coordination with the tapered surface, the push sleeve is movably connected to the rear mold insert through the tapered surface, the floating insert is arranged in the rear mold insert and the bottom is flush with the bottom of the rear mold insert, one end of the ejector rod is arranged in the floating insert, and the other end is connected to the injection molding machine drive device; The floating insert is provided with a locating pin on the side wall near the bottom, the middle part of the locating pin is fixedly connected to the side wall of the floating insert, the two ends of the locating pin extend out respectively, the inner side wall of the rear mold insert is provided with a first ejection groove matching with the extended end of the locating pin, and the outer surface of the ejector rod is provided with a second ejection groove matching with the extended end of the locating pin.
2. The secondary ejection mold structure for the buckle demoulding of the aerosol cover according to claim 1, characterized in that: The secondary ejection mold also includes a push plate, a rear template, a support plate, an ejector plate, an ejector module, and a bottom plate. The ejector module is connected to the injection molding machine drive device through the bottom plate, the ejector plate is connected to the ejector module, one end of the ejector rod is connected to the ejector plate, and the other end passes through the support plate, the rear template, and the floating insert to extend into the product cavity.
3. The secondary ejection mold structure for the buckle demoulding of the aerosol cover according to claim 2, characterized in that: The support plate is fixedly connected to the bottom plate, a first spring reset device is provided between the support plate and the ejector plate, the rear template is provided on the upper part of the support plate, a push sleeve is provided on the upper part of the rear template, and a second spring reset device is provided between the rear template and the ejector plate.
4. The secondary ejection mold structure for the buckle demoulding of the aerosol cover according to claim 2, characterized in that: The push plate is arranged above the rear template, a push sleeve is arranged in the middle of the push plate, and the push plate is fixedly connected with the push sleeve.
5. The secondary ejection mold structure for the buckle demoulding of the aerosol cover according to claim 2, characterized in that: The support plate is fixedly connected to one end of the rear mold insert, and the other end of the rear mold insert passes through the push sleeve and extends into the product cavity. A floating insert is arranged in the rear mold insert, and one end of the floating insert is close to the top of the support plate and the other end extends into the product cavity.
6. The secondary ejection mold structure for the buckle demoulding of the aerosol cover according to claim 1, characterized in that: A coolant pipeline is arranged inside the ejector rod.
7. The secondary ejection mold structure for the buckle demoulding of the aerosol cover according to claim 1, characterized in that: The front mold cavity is provided with an injection channel.