Bottle cap forming mold core and bottle cap forming mold
By designing bottle cap molding cores and molds, the problem of depression in the center of the bottle cap cap top is solved using inserts and gas circuit systems, achieving faster production speeds and higher product flatness, and shortening with improved cooling systems The molding cycle reduces costs.
Patent Information
- Application Number
- CN202323265533.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-01
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-01
AI Technical Summary
Existing large-diameter bottle cap molds cannot effectively avoid the concave phenomenon in the center of the bottle cap cap top, and it is difficult to take into account both the production speed and the flatness of the product.
Design a bottle cap molded core, including an inner core fixing seat, an insert, an outer core, a first gas path and a second gas path, which is abutted with the end face of the bottle cap through the insert, and the gas path is blown when demolding The gas prevents concave and improves the cooling effect through the inlet and outlet water paths to shorten the forming cycle.
The problem of concave in the center of the bottle cap cover is solved, the production speed and product flatness are improved, and the cost is reduced through alternative inserts and gas circuit systems, the cooling effect is enhanced, and the production efficiency is improved.
Smart Images
Figure CN222223318U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a bottle cap forming core and a bottle cap forming mould. Background Art
[0002] Bottle caps are consumed in huge quantities in the market, and the production cycle needs to be as fast as possible. Large-diameter bottle caps have a large cap top area, and the center of the cap top will be concave due to the shrinkage of the plastic. It is very difficult to increase the reproduction speed while ensuring that the top of the product is flat. However, the common large-diameter bottle cap molds on the market often cannot meet the above requirements.
[0003] In view of this, it is necessary to improve the existing bottle cap molding core to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a bottle cap forming core to solve the problem that the center of the bottle cap top is easily concave when the bottle cap is produced by the existing mold.
[0005] To achieve the above-mentioned purpose, the utility model provides a bottle cap molding core for injection molding bottle caps, the bottle cap molding core comprising an inner core fixing seat, an insert axially arranged at one end of the inner core fixing seat, and an outer core radially arranged on the inner core fixing seat and the outer side of the insert, the insert abuts against the end face of the formed bottle cap, the outer core abuts against the side wall of the formed bottle cap radially, a first air path is formed in the inner core fixing seat, a second air path connected to the bottle cap is formed on the insert, and the first air path is connected to the second air path.
[0006] As a further improvement of the present invention, the insert includes a first columnar body and a second columnar body, the diameter of the first columnar body is larger than the diameter of the second columnar body, the inner core fixing seat is recessed inward from the surface at one axial end to form a receiving portion, the second columnar body is axially inserted into the receiving portion, and the first columnar body is axially abutted against the inner core fixing seat.
[0007] As a further improvement of the present invention, the second gas path includes an outlet gas path arranged in the first column and a connecting gas path arranged in the second column, and the connecting gas path is used to connect the outlet gas path and the first gas path.
[0008] As a further improvement of the present invention, a wrench position is provided at one end of the second column close to the inner core fixing seat, and the wrench position is communicated with the first gas path.
[0009] As a further improvement of the present invention, the wrench position, the first gas path, and the connecting gas path are all coaxially arranged with the first column and the inner core fixing seat.
[0010] As a further improvement of the present invention, there are multiple air outlet passages, and the outlets of the multiple air outlet passages are arranged on the side wall and / or the end of the first column.
[0011] As a further improvement of the present invention, the height of the first column along the axial direction is smaller than the height of the side wall of the bottle cap.
[0012] As a further improvement of the utility model, a water inlet waterway and a water outlet waterway are arranged between the inner core fixing seat and the outer core, and a connecting waterway is arranged between the first column and the inner core fixing seat, and the connecting waterway connects the water inlet waterway and the water outlet waterway.
[0013] As a further improvement of the present invention, the second cylinder is connected to the inner core fixing seat through a threaded portion, and the bottle cap molding core also includes a first seal arranged between the second cylinder and the inner core fixing seat, and a second seal arranged between the first cylinder and the outer core, and the first seal is axially arranged between the connecting water channel and the threaded portion.
[0014] The utility model also provides a bottle cap forming mold, which comprises a push ring and the bottle cap forming core as described above, wherein the push ring is arranged around the outer core and abuts against the end of the bottle cap side wall along the axial direction.
[0015] The beneficial effects of the utility model are as follows: the bottle cap molding mold and the bottle cap molding core of the utility model are provided with inserts, so that the inserts can be replaced separately when the inserts are damaged, thereby saving costs; by providing the first air path and the second air path, air blowing is performed during demoulding, thereby solving the problem of the end face of the bottle cap being sunken and making it easier to detach the bottle cap. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a bottle cap forming mold of the utility model. DETAILED DESCRIPTION
[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0020] like Figure 1 As shown, the bottle cap forming mold 100 of the present invention comprises a push ring 2 and a bottle cap forming core 1 .
[0021] The bottle cap molding core 1 is used for injection molding to form a bottle cap 200 . The bottle cap 200 has a circular end surface 201 and a side wall 202 protruding from the end surface 201 toward one side.
[0022] The bottle cap molding core 1 includes an inner core fixing seat 11, an insert 12 axially arranged at one end of the inner core fixing seat 11, an outer core 13 radially arranged outside the inner core fixing seat 11 and the insert 12, a first seal 14 and a second seal 15.
[0023] The inner core fixing seat 11 and the insert 12 are combined to form the inner core.
[0024] The outer core 13 abuts against the side wall 202 of the bottle cap 200 in the radial direction. A thread groove 131 is provided at one end of the outer core 13 to form a thread protrusion 203 on the side wall 202 of the bottle cap 200 .
[0025] The end of the outer core 13 abuts against the end surface 201 of the bottle cap 200 .
[0026] The insert 12 abuts against the end face 201 of the formed bottle cap 200, and the insert 12 includes a first columnar body 121 and a second columnar body 122, wherein the diameter of the first columnar body 121 is greater than the diameter of the second columnar body 122, wherein the first columnar body 121 abuts against the end face 201 of the bottle cap 200, and the side wall 202 of the first columnar body 121 abuts against the outer core 13.
[0027] The inner core fixing seat 11 is recessed inward from the surface at one axial end to form a receiving portion, a first air path 111 is formed axially through the inner core fixing seat 11, the second column 122 is axially inserted into the receiving portion, and the first column 121 is axially abutted against the inner core fixing seat 11.
[0028] In this embodiment, the second column 122 is connected to the inner core fixing seat 11 through a threaded portion 123 . Furthermore, the threaded portion 123 is disposed at an end away from the first column 121 .
[0029] The insert 12 has a second gas path 125 in communication with the bottle cap 200 , and the first gas path 111 is in communication with the second gas path 125 .
[0030] The second gas path 125 includes an outlet gas path 126 disposed in the first column 121 and a connecting gas path 127 disposed in the second column 122 . The connecting gas path 127 is used to connect the outlet gas path 126 and the first gas path 111 .
[0031] The second column 122 is provided with a wrench position 124 at one end close to the inner core fixing seat 11, and the wrench position 124 is connected to the first gas path 111. A wrench can be inserted through the first gas path 111 and clamped with the wrench position 124. By turning the wrench, the insert 12 can be rotated, thereby controlling the connection or disconnection with the insert 12. In this embodiment, the insert 12 is a fragile structure, and can be quickly disassembled by providing the wrench position 124. In this embodiment, the wrench position 124 is a hexagonal groove, and is provided at one end of the connecting gas path 127 close to the first gas path 111.
[0032] The wrench position 124 , the first gas path 111 , and the communication gas path 127 are all coaxially arranged with the first column 121 and the inner core fixing seat 11 .
[0033] There are multiple outlet gas paths 126, and the outlets of the multiple outlet gas paths 126 are arranged on the side wall 202 and / or the end of the first column 121. During demoulding, high-pressure gas can be injected through the first gas path 111, enter the outlet gas path 126 through the connecting gas path 127, and further blown toward the bottle cap 200, especially toward the end surface 201 of the bottle cap 200, to prevent the bottle cap 200 from being concave.
[0034] The height of the first column 121 along the axial direction is smaller than the height of the side wall 202 of the bottle cap 200 .
[0035] An inlet waterway 16 and an outlet waterway 17 are provided between the inner core fixing seat 11 and the outer core 13, and a connecting waterway 18 is provided between the first column 121 and the inner core fixing seat 11, and the connecting waterway 18 connects the inlet waterway 16 and the outlet waterway 17. A water inlet 132 and a water outlet 133 are provided on the outer valve core, which are connected to the inlet waterway 16 and the outlet waterway 17 respectively.
[0036] Since the axial height of the first column 121 is smaller than the height of the side wall 202 of the bottle cap 200 , the water inlet channel 16 and the water outlet channel 17 are separated from the side wall 202 of the bottle cap 200 by only the thickness of the outer core 13 , so the cooling effect is better.
[0037] At the same time, the insert 12 can be made of a material with good thermal conductivity, such as beryllium copper, to enhance the cooling effect, shorten the product molding cycle of the bottle cap 200, and improve production efficiency.
[0038] The first seal 14 is arranged between the second column 122 and the inner core fixing seat 11. Furthermore, the first seal 14 is axially arranged between the connecting water channel 18 and the threaded portion 123, so as to prevent cooling water from flowing out from between the second column 122 and the outer core 13 to the threaded portion 123.
[0039] The second sealing member 15 is disposed between the first column 121 and the outer core 13 , and is located between one end of the first column 121 close to the second column 122 and the outlet of the air outlet passage 126 , thereby preventing cooling water from entering the air outlet passage 126 from between the first column 121 and the outer core 13 .
[0040] The push ring 2 is disposed around the outer core 13 and abuts against the end of the side wall 202 of the bottle cap 200 along the axial direction. During demoulding, the push ring 2 pushes the bottle cap 200 away from the outer core 13 and the insert 12 along the axial direction.
[0041] The bottle cap molding mold 100 and the bottle cap molding core 1 of the utility model are provided with an insert 12, so that the insert 12 can be replaced separately when the insert 12 is damaged, thereby saving costs; by providing a first air path 111 and a second air path 125, air blowing is performed during demoulding, thereby solving the problem of the concave end face 201 of the bottle cap 200 and making it easier to detach the bottle cap 200; by providing a water inlet water path 16 and a water outlet water path 17 between the inner core fixing seat 11 and the outer core 13, a better cooling effect on the bottle cap 200 can be achieved, thereby shortening the production cycle.
[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A bottle cap molding core for injection molding a bottle cap, characterized in that: The bottle cap molding core includes an inner core fixing seat, an insert axially arranged at one end of the inner core fixing seat, and an outer core radially arranged on the inner core fixing seat and the outer side of the insert, the insert abuts against the end face of the formed bottle cap, the outer core abuts against the side wall of the formed bottle cap radially, a first air path is formed in the inner core fixing seat, a second air path connected to the bottle cap is formed on the insert, and the first air path is connected to the second air path.
2. The bottle cap molding core according to claim 1, characterized in that: The insert includes a first columnar body and a second columnar body. The diameter of the first columnar body is larger than the diameter of the second columnar body. The inner core fixing seat is recessed inward from the surface at one axial end to form a receiving portion. The second columnar body is axially inserted into the receiving portion. The first columnar body is axially abutted against the inner core fixing seat.
3. The bottle cap molding core according to claim 2, characterized in that: The second gas path includes an outlet gas path provided in the first column and a connecting gas path provided in the second column, and the connecting gas path is used to connect the outlet gas path and the first gas path.
4. The bottle cap molding core according to claim 3, characterized in that: A wrench position is provided at one end of the second column close to the inner core fixing seat, and the wrench position is communicated with the first gas path.
5. The bottle cap molding core according to claim 4, characterized in that: The wrench position, the first gas path, and the communicating gas path are all coaxially arranged with the first column and the inner core fixing seat.
6. The bottle cap molding core according to claim 3, characterized in that: There are multiple gas outlet passages, and the outlets of the multiple gas outlet passages are arranged on the side wall and / or the end of the first column.
7. The bottle cap molding core according to claim 2, characterized in that: The height of the first column along the axial direction is smaller than the height of the side wall of the bottle cap.
8. The bottle cap molding core according to claim 7, characterized in that: A water inlet channel and a water outlet channel are provided between the inner core fixing seat and the outer core, and a connecting water channel is provided between the first column and the inner core fixing seat, and the connecting water channel connects the water inlet channel and the water outlet channel.
9. The bottle cap molding core according to claim 8, characterized in that: The second cylinder is connected to the inner core fixing seat through a threaded portion, and the bottle cap molding core also includes a first seal arranged between the second cylinder and the inner core fixing seat, and a second seal arranged between the first cylinder and the outer core, and the first seal is axially arranged between the connecting water channel and the threaded portion.
10. A bottle cap forming mold, characterized in that: The bottle cap forming mold comprises a push ring and a bottle cap forming core as described in any one of claims 1 to 9, wherein the push ring is arranged around the outer core and abuts against the end of the bottle cap side wall along the axial direction.