Die lip and forming assembly

Abstract

The utility model relates to a die lip and a forming assembly, at least one end part of the die lip is provided with a die lip locking surface, the die lip locking surface comprises a die lip conical surface and a die lip inclined wedge surface, and the die lip conical surface is connected with the die lip inclined wedge surface; the forming assembly comprises at least one forming part and a die lip; the conical surface and the inclined wedge surface are arranged in the die lip, so that when the die lip is matched with the die locking ring, the conical surface and the inclined wedge surface respectively perform radial limiting and circumferential limiting on the die locking ring, rapid matching between the die lip and the die locking ring can be realized, an additional limiting structure does not need to be arranged, and due to the contact matching mode of the conical surface and the inclined wedge surface, the die lip can be quickly matched with the die locking ring. And enough mold locking force can be provided for connection between the mold lip and the mold locking ring, so that the mold lip and the mold locking ring are matched and locked, the defect of parting lines of a molded product is prevented, and the molding quality of the molded product is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of bottle blank molding, and in particular relates to a die lip and a molding component. Background Art

[0002] In view of the bottle blank molding technology with an outward protrusion on the outer wall of the blank body, such as the injection molding technology of the handle bottle blank, the applicant has previously made technical improvements to the mold lip of the injection mold, so that the injection mold can increase the mold production capacity without increasing the outer dimensions of the mold frame, and enable the injection mold to provide a larger number of cavities. For the specific structure, please refer to the Chinese patent document with patent application number: 202123075870.X and patent name "Separate molding device, eccentric molding component and bottle blank mold".

[0003] In traditional injection molds, in order to achieve the fit between the die lip and the locking ring, a locking body structure with a truncated cone structure is set at the end of the die lip. When the locking body structure and the locking ring are matched, the outer circumference of the locking body and the locking ring are fully contacted, and the locking ring completely covers the outer circumference of the locking body. At this time, the outer periphery of the locking ring needs to form a 360° fully covered outer wall. The outer diameter of the formed locking ring is relatively large. There is still room for improvement in the structural design of the die lip, and the relationship between the outer dimensions of the injection mold frame and the output is further optimized. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a die lip and a molding component.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A die lip, wherein at least one end of the die lip is provided with a die lip locking surface, characterized in that the die lip locking surface comprises a die lip conical surface and a die lip oblique wedge surface, and the die lip conical surface is connected to the die lip oblique wedge surface.

[0007] In the utility model, the die lip locking surface is arranged at the first end of the die lip, and is used to cooperate with the die cavity part.

[0008] In the utility model, the die lip locking surface is arranged at the second end of the die lip, and is used to cooperate with the core part.

[0009] In the utility model, the die lip is formed by two mirror-symmetrical half-die lip parts connected along the die lip parting surface; the two half-die lip parts are provided with the die lip locking surface at the same end; wherein the two die lip conical surfaces of the two half-die lip parts are arranged mirror-symmetrically with respect to the die lip parting surface; and the two die lip oblique wedge surfaces of the two half-die lip parts are arranged mirror-symmetrically with respect to the die lip parting surface.

[0010] In the present invention, the maximum distance between the two die lip conical surfaces of the two half die lip parts is L 1max The maximum distance between the two lip wedge surfaces of the two half-lip parts is L 2max , L 1max >L 2max .

[0011] In the present invention, the die lip has at least one die lip non-locking plane; the die lip non-locking plane is arranged on the side of the large plate of the die lip;

[0012] Alternatively, the non-locking plane of the die lip is arranged on the side of the large disk of the die lip and extends toward at least one end, and is connected to the conical surface of the die lip or the inclined wedge surface of the die lip.

[0013] Based on the die lip disclosed above, the utility model also discloses a molding assembly, including at least one molding part and the above-mentioned die lip; the molding part is provided with a molding locking surface, the molding locking surface includes a molding conical surface for contacting and matching with the die lip conical surface and a molding wedge surface for contacting and matching with the die lip wedge surface, the molding conical surface is connected to the molding wedge surface; the molding part is adapted to the die lip based on the contact and matching between the molding locking surface and the die lip locking surface.

[0014] In the utility model, the molding part has at least one molding non-locking plane; the molding non-locking plane is arranged on the side of the molding part; or, the molding non-locking plane is arranged on the side of the molding part and connected to the molding conical surface or the molding wedge surface; when the molding part cooperates with the die lip, the molding non-locking plane is flush with the die lip non-locking plane.

[0015] In the utility model, the molding part includes a mold cavity part; the mold cavity part includes a mold cavity, and the molding locking surface is arranged at the mating end of the mold cavity; or, the mold cavity part includes a mold cavity and a mold cavity locking ring, and the molding locking surface is arranged in the mold cavity locking ring.

[0016] In the utility model, the molding part includes a core part; the core part includes a core, and the molding locking surface is arranged on the core; or, the core part includes a core and a core seat, and the molding locking surface is arranged on the core seat.

[0017] The beneficial effects of the utility model are as follows: by arranging a conical surface and an inclined wedge surface in the die lip, when the die lip and the locking ring are matched, the conical surface and the inclined wedge surface respectively limit the radial direction and the circumferential direction of the locking ring, so that the die lip and the locking ring can be quickly matched, and there is no need to set an additional limiting structure, and the contact matching mode of the conical surface and the inclined wedge surface can provide sufficient locking force for the connection between the die lip and the locking ring, so that the two are matched and locked, and the defects of the parting line of the molded product are prevented, and the molding quality of the molded product is guaranteed; the side wall of the locking ring is set as an open-loop structure with an opening, because the position of the side wall of the locking ring corresponding to the opening has no wall thickness, so the radial dimension of the locking ring is equivalent to the dimension of the die lip, and the outer diameter dimension of the molding component is reduced, so that the injection mold can be provided with more molding components in the mold frame of the same size; and when the number of molding components to be set is the same, the mold frame size is reduced; and the relationship between the outer dimensions of the mold frame of the injection mold and the production capacity is optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the overall structure of the die lip;

[0019] Figure 2 Schematic diagram of the bottom structure of the die lip;

[0020] Figure 3 It is a structural schematic diagram of the molding component;

[0021] Figure 4 It is a structural schematic diagram of the mold lip and the mold cavity locking ring in the matching state;

[0022] Figure 5 It is a schematic diagram of the structure of the mold lip and the mold cavity locking ring in the separated state. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0024] like Figure 1 and Figure 2 As shown, this embodiment discloses a die lip 1, at least one end of the die lip 1 is provided with a die lip locking surface, the die lip locking surface includes a die lip conical surface 11 and a die lip oblique wedge surface 12 for contacting with a die locking ring, the die lip conical surface 11 is connected to the die lip oblique wedge surface 12, when the die lip 1 is matched with the die locking ring, the inner side surface of the die locking ring covers the die lip conical surface 11 for contact and fit, and the side wall opening of the die locking ring is in contact and fit with the die lip oblique wedge surface 12, the die lip conical surface 11 and the die lip oblique wedge surface 12 respectively limit the locking ring radially and circumferentially.

[0025] A die lip conical surface 11 and a die lip oblique wedge surface 12 are provided in the die lip 1, so that when the die lip 1 is locked with the locking ring, the die lip conical surface 11 and the die lip oblique wedge surface 12 respectively limit the locking ring in radial direction and circumferential direction, thereby realizing rapid cooperation between the die lip 1 and the locking ring without the need for additional limiting structure. Moreover, the contact cooperation mode of the die lip conical surface 11 and the die lip oblique wedge surface 12 can provide sufficient locking force for the connection between the die lip 1 and the locking ring, so that the two are closely matched, thereby preventing the defect of parting line from occurring in the molded product and ensuring the molding quality of the molded product.

[0026] When the die lip 1 cooperates with the locking ring, the die lip conical surface 11 is covered by the inner side surface of the locking ring to achieve radial limitation; the die lip inclined wedge surface 12 contacts and cooperates with the open groove surface of the side wall of the locking ring, so that the side wall of the locking ring is an open ring structure with an opening, and the position of the side wall of the locking ring corresponding to the opening has no wall thickness, so the radial dimension of the locking ring is equivalent to the die lip dimension, and the outer diameter dimension of the molding component is reduced, so that the injection mold can be provided with more molding components in the mold frame of the same size; and when the number of molding components to be provided is the same, the mold frame size is reduced, thereby reducing the size requirement of the matching injection molding machine, thereby reducing the cost and working energy consumption of the injection mold.

[0027] The lip locking surface can be set at one end or both ends of the lip 1; when the lip locking surface is set at the first end located at the bottom end of the lip 1, it cooperates with the cavity part; when the lip locking surface is set at the second end located at the top end of the lip 1, it cooperates with the core part.

[0028] In this embodiment, when the die lip tapered surface 11 and the die lip inclined wedge surface 12 are arranged at the first end of the die lip 1, the die lip tapered surface 11 and the die lip inclined wedge surface 12 cooperate with the clamping ring of the cavity part. Of course, in actual applications, the die lip tapered surface 11 and the die lip inclined wedge surface 12 can also be at the second end of the die lip 1, and cooperate with the clamping ring of the core part.

[0029] In this embodiment, the die lip 1 is formed by two mirror-symmetrically matched half-die lip parts 13 butted together along the die lip parting surface 14. The same end of the two half-die lip parts 13 is provided with a die lip conical surface 11 and a die lip inclined wedge surface 12. The two die lip conical surfaces 11 of the two half-die lip parts 13 are arranged mirror-symmetrically with respect to the die lip parting surface 14, and the two die lip inclined wedge surfaces 12 of the two half-die lip parts 13 are arranged mirror-symmetrically with respect to the die lip parting surface 14. The maximum distance between the two die lip conical surfaces 11 of the two half-die lip parts 13 is L 1max The maximum distance between the two die lip wedge surfaces 12 of the two half die lip parts 13 is L 2max , L 1max >L 2max .

[0030] In this embodiment, the die lip 1 has at least one die lip non-locking plane 15, and the die lip non-locking plane 15 is arranged on the side of the large disk of the die lip; or, the die lip non-lip plane 15 is arranged on the side of the large disk of the die lip and extends toward at least one end, and is connected to the die lip conical surface 11 or the die lip bevel wedge surface 12.

[0031] Based on the die lip 1 disclosed in the above embodiment, this embodiment also discloses a molding component, such as Figure 3-5 As shown, the molding assembly includes at least one molding part and the above-mentioned die lip 1, the molding part is provided with a molding locking surface, the molding locking surface includes a molding conical surface 21 for contacting and matching with the die lip conical surface 11 and a molding wedge surface 22 for contacting and matching with the die lip wedge surface 12, the molding conical surface 21 is connected with the molding wedge surface 22; the molding part is adapted to the die lip 1 based on the contact and matching of the molding locking surface with the die lip locking surface. When the die lip 1 is matched with the molding part, under the cooperation of the die lip conical surface 11 and the molding conical surface 21, and the die lip wedge surface 12 and the molding wedge surface 22, the two generate sufficient locking force, so that the two half die lip parts 13 are tightly molded.

[0032] In this embodiment, the molding part has at least one molding non-locking plane 23; the molding non-locking plane 23 is arranged on the side of the molding part and connected to the molding bevel wedge surface 22; when the molding part is matched with the die lip, the molding non-locking plane 23 is flush with the die lip non-locking plane 15. In other embodiments, the molding non-locking plane 23 is arranged on the side of the molding part; or, the molding non-locking plane 23 is arranged on the side of the molding part and connected to the molding tapered surface 21 or the molding bevel wedge surface 22.

[0033] In this embodiment, the molding part includes a mold cavity part and a mold core part, the mold cavity part includes a mold cavity 4 and a mold cavity locking ring 2, and the mold core part includes a mold core 5 and a mold core seat 3. The molding locking surface is arranged in the mold cavity locking ring 2 and the mold core seat 3, the mold cavity locking ring 2 is used for the cooperation between the mold lip 1 and the mold cavity 4, and the mold core seat 3 is used for the cooperation between the mold lip 1 and the mold core 5.

[0034] The die lip tapered surface 11 and the die lip oblique wedge surface 12 are arranged at the first end of the die lip 1, and the die lip tapered surface 11 and the die lip oblique wedge surface 12 cooperate with the mold cavity clamping ring 2; the molding clamping surface at the second end of the die lip 1 is a frustum surface, and the frustum surface cooperates with the core seat 3. Of course, in practical applications, the die lip tapered surface 11 and the die lip oblique wedge surface 12 can also be arranged at the second end of the die lip 1.

[0035] In other embodiments, the mold cavity portion includes a mold cavity 4 , and the molding locking surface is arranged at the mating end of the mold cavity 4 ; the mold core portion includes a mold core 5 , and the molding locking surface is arranged on the mold core 5 .

[0036] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the protection scope of the present invention.

Claims

1. A die lip, wherein at least one end of the die lip is provided with a die lip locking surface, characterized in that: The die lip locking surface comprises a die lip tapered surface and a die lip oblique wedge surface, and the die lip tapered surface is connected to the die lip oblique wedge surface; The die lip locking surface is arranged at the first end of the die lip for cooperating with the die cavity part; The die lip is formed by two mirror-symmetrical half-die lip parts connected along the die lip parting surface; The two half-mold lip parts are both provided with the mold lip locking surface at the same end; Wherein, the two die lip conical surfaces of the two half die lip parts are arranged in mirror symmetry with respect to the die lip parting surface; The two die lip oblique wedge surfaces of the two half die lip parts are arranged in mirror symmetry with respect to the die lip parting surface.

2. The die lip according to claim 1, characterized in that: The die lip locking surface is arranged at the second end of the die lip and is used for cooperating with the core part.

3. The die lip according to claim 1, characterized in that: The maximum distance between the two lip tapered surfaces of the two half lip parts is L 1max The maximum distance between the two lip wedge surfaces of the two half-lip parts is L 2max , L 1max >L 2max .

4. The die lip according to claim 1, characterized in that: The die lip has at least one die lip non-locking plane; The non-locking plane of the die lip is arranged on the side of the large disk of the die lip; or, the non-locking plane of the die lip is arranged on the side of the large disk of the die lip and extends toward at least one end, and is connected to the conical surface of the die lip or the inclined wedge surface of the die lip.

5. A molding component, characterized in that: comprising at least one molding portion and a die lip as claimed in any one of claims 1 to 4; The molding part is provided with a molding clamping surface, the molding clamping surface includes a molding conical surface for contacting and matching with the die lip conical surface and a molding wedge surface for contacting and matching with the die lip wedge surface, and the molding conical surface is connected to the molding wedge surface; The molding part is adapted to the die lip based on the contact cooperation between the molding locking surface and the die lip locking surface.

6. The molding assembly according to claim 5, characterized in that The molding part has at least one molding non-locking plane; The molding non-locking plane is arranged on the side of the molding part; or, the molding non-locking plane is arranged on the side of the molding part and connected to the molding conical surface or the molding inclined wedge surface; When the molding part cooperates with the die lip, the molding non-locking plane is flush with the die lip non-locking plane.

7. The molding assembly according to claim 5, characterized in that The molding part includes a mold cavity part; The mold cavity part includes a mold cavity, and the molding locking surface is arranged at the matching end of the mold cavity; or, the mold cavity part includes a mold cavity and a mold cavity locking ring, and the molding locking surface is arranged in the mold cavity locking ring.

8. The molding assembly according to claim 5 or 7, characterized in that: The molding part includes a core part; The core part includes a core, and the molding locking surface is arranged on the core; or, the core part includes a core and a core seat, and the molding locking surface is arranged on the core seat.

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