Production mold for special-shaped bottle caps

Abstract

The utility model discloses a special-shaped bottle cap production mould, which comprises a lower mould and an upper mould, the lower mould comprises a mould base, a mould outer sleeve and an inner core seat, the mould outer sleeve and the inner core seat are fixedly arranged on the mould base, the inner core seat is arranged at the central position of the inner side of the mould outer sleeve, and a lifting sleeve capable of vertically lifting is arranged on the inner side of the mould base. The upper die comprises a die core column and a positioning auxiliary pressing sleeve, the bottom of the die core column is fixedly connected with an extrusion head, the outer side of the die core column is sleeved with the positioning auxiliary pressing sleeve, the extrusion head is arranged corresponding to the inner core base, the positioning auxiliary pressing sleeve is arranged corresponding to the lifting sleeve, and a demolding assembly is arranged at the position of the inner core base; when the upper die and the lower die are closed, the effect of simultaneous extrusion in the circumferential directions of the upper portion, the lower portion and the side face can be achieved so that bottle cap products with arc-shaped convex faces can be formed in a matched mode, the mold has the demolding function, the formed products can be conveniently separated out, and the requirement for batch production of the special-shaped bottle cap products can be well met.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap production equipment, and more specifically, to a production mold for special-shaped bottle caps. Background Art

[0002] like Figure 3 As shown in the figure, it is a newly developed bottle cap product of the enterprise. The appearance of this bottle cap product is different from that of the traditional cylindrical bottle cap. The appearance feature of this bottle cap product is that there is an arc-shaped convex surface in the middle, and an embossed pattern is formed on the convex surface. This bottle cap product has good recognition and beautiful appearance characteristics, so it is widely welcomed by customers. Due to the special appearance of this bottle cap product, the existing mold of the enterprise cannot be suitable for the production of this bottle cap product. The enterprise urgently needs to develop and design a new mold to meet the mass production needs of this bottle cap product, and this case is born. Utility Model Content

[0003] The purpose of the utility model is to solve the needs of the above-mentioned prior art and provide a production mold for special-shaped bottle caps. When the upper and lower molds of the mold are closed, a simultaneous extrusion effect can be formed in the upper and lower directions and in the circumferential direction of the side to adapt to the forming of bottle cap products with curved convex surfaces. The mold has a demoulding function and can easily remove the formed product. The mold can well meet the mass production needs of special-shaped bottle cap products.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A production mold for a special-shaped bottle cap comprises a lower mold and an upper mold, the lower mold comprises a mold base, a mold outer sleeve and an inner core seat, the mold outer sleeve and the inner core seat are fixedly installed on the mold base, the inner core seat is arranged at the inner central position of the mold outer sleeve, a lifting sleeve capable of vertical lifting movement is installed on the inner side of the mold base, a plurality of extrusion modules are evenly installed between the lifting sleeve and the inner core seat, the extrusion modules are elastically connected to the inner core seat, and the lifting sleeve can push the extrusion modules to move toward the inner core seat when the lifting sleeve moves downward, the upper mold comprises a mold core column and a positioning auxiliary pressure sleeve, an extrusion head is fixedly connected to the bottom of the mold core column, the positioning auxiliary pressure sleeve is sleeved on the outside of the mold core column, a plurality of positioning pressure columns are fixedly connected to the bottom of the positioning auxiliary pressure sleeve, the extrusion head is arranged corresponding to the inner core seat, the positioning pressure column is arranged corresponding to the lifting sleeve, and a demolding component is installed at the position of the inner core seat.

[0006] Furthermore, the top of the inner wall of the mold sleeve protrudes inward to form a circle of inner convex ring, and the bottom of the outer wall of the lifting sleeve protrudes outward to form a circle of outer convex ring. The outer diameter of the outer convex ring matches the diameter of the inner wall of the mold sleeve. A lifting and lowering movement space for the outer convex ring is reserved below the inner convex ring. The inner convex ring blocks the upward path of the outer convex ring. The lower mold also includes a first spring, which is installed upright. The first spring is partially connected to the lifting sleeve and is also partially connected to the mold base. No less than two first springs are installed upright.

[0007] Furthermore, the lower die also includes a second spring, the number of installed second springs corresponds to the number of extrusion modules, the second spring is installed horizontally, the second spring is partially connected to the inner core seat, and the second spring is also partially connected to the extrusion module.

[0008] Furthermore, two extrusion bevels are provided on the inner wall of the lifting sleeve, and two extrusion slopes are provided on the outer wall of the extrusion module, and the extrusion bevels and the extrusion slopes are arranged in a one-to-one correspondence.

[0009] Furthermore, a plurality of positioning grooves are provided on the top of the lifting sleeve, and the positioning grooves are arranged in one-to-one correspondence with the positioning pressure columns.

[0010] Furthermore, a molding groove is provided on the inner wall of the extrusion module, and a concave pattern is engraved in the molding groove.

[0011] Furthermore, a vertical slot is provided on the core column, the positioning auxiliary pressure sleeve is movably sleeved on the outer side of the core column, a connecting pin is fixedly installed on the positioning auxiliary pressure sleeve, and the connecting pin is inserted into the vertical slot.

[0012] Furthermore, the demoulding assembly includes a demoulding rod and a demoulding push cylinder. The demoulding rod is installed through the inner core seat, and the demoulding rod is connected to the piston rod end of the demoulding push cylinder.

[0013] The beneficial effects of the utility model are:

[0014] The utility model adopts an upper and lower mold design, and an extrusion module that can shrink or expand outward is installed in the lower mold. When the upper and lower molds are closed, the extrusion module can be driven to shrink, and can form a simultaneous extrusion effect in the upper and lower and side circumferential directions in cooperation with the upper mold to adapt to forming bottle cap products with arc-shaped convex surfaces. The extrusion module in the lower mold can automatically expand outward when the mold is opened, so as to facilitate the demoulding component to quickly lift out the product. The utility model has a reasonable structural design and can well meet the mass production needs of special-shaped bottle cap products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the upper mold and the lower mold in the present embodiment in the mold opening state;

[0016] Figure 2 Schematic diagram of the structure of the upper mold and the lower mold in the mold closing state in this embodiment;

[0017] Figure 3 This is a schematic diagram of the appearance of the bottle cap product to be produced.

[0018] Figure numerals: lower mold 1, mold base 11, mold outer sleeve 12, inner convex ring 121, inner core seat 13, lifting sleeve 14, outer convex ring 141, extrusion bevel 142, positioning groove 143, extrusion module 15, extrusion slope 151, molding groove 152, first spring 16, second spring 17, upper mold 2, mold core column 21, vertical long groove 211, extrusion head 22, positioning auxiliary pressure sleeve 23, positioning pressure column 231, connecting sleeve pin 24, demolding assembly 3, demolding rod 31, demolding push cylinder 32. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0020] like Figure 1 and Figure 2 The production mold of a special-shaped bottle cap shown in the figure includes a lower mold 1 and an upper mold 2. The lower mold 1 includes a mold base 11, a mold outer sleeve 12 and an inner core seat 13. The mold outer sleeve 12 and the inner core seat 13 are fixedly installed on the mold base 11. The inner core seat 13 is arranged at the inner central position of the mold outer sleeve 12. A lifting sleeve 14 that can move vertically up and down is installed on the inner side of the mold base 11. A plurality of extrusion modules 15 are evenly installed between the lifting sleeve 14 and the inner core seat 13. The extrusion modules 15 are elastically connected to the inner core seat 13. When the lifting sleeve 14 moves downward, it can push the extrusion modules 15 to move toward the inner core seat 13, forming a contraction and extrusion effect of the extrusion modules 15 to form the side wall shape of the bottle cap product. Similarly, when the lifting sleeve 14 moves upward, the extrusion modules 15 will move toward the lifting sleeve 14 under the action of elastic force, forming an outward expansion movement effect of the extrusion modules 15. At this time, the extrusion modules 15 are separated from the bottle cap product, which is convenient for demoulding (such as Figure 3As shown, the outer wall of the bottle cap product is provided with an arc-shaped convex surface. In order to form the convex surface, the extrusion module 15 needs to be contracted and extruded. In order to demould smoothly, the extrusion module 15 needs to be able to expand and separate outward to leave movement space for the convex surface). The upper mold 2 needs to be inserted into the lower mold 1 so that the product can be formed. This is the general operation mode of the mold. The upper mold 2 of the utility model includes a mold core column 21 and a positioning auxiliary pressure sleeve 23. The mold core column 21 is the main body of the upper mold 2. The top of the mold core column 21 can be connected to a power device to realize the descending extrusion operation of the upper mold 2. The power equipment of the upper mold 2 is common equipment and will not be introduced here. The bottom of the mold core column 21 is fixedly connected with an extrusion head 22, such as Figure 1 As shown, a forming space for bottle cap products is formed in the extrusion module 15 and the inner core seat 13. The extrusion head 22 is inserted into the space to form the bottle cap products. The positioning auxiliary pressure sleeve 23 is sleeved on the outside of the mold core column 21. A plurality of positioning pressure columns 231 are fixedly connected to the bottom of the positioning auxiliary pressure sleeve 23. The extrusion head 22 is arranged corresponding to the inner core seat 13. The extrusion head 22 is arranged directly above the inner core seat 13. The extrusion head 22 is pressed downwardly and inserted in the direction of the inner core seat 13. The positioning pressure column 231 is arranged corresponding to the lifting sleeve 14. After the positioning pressure column 231 descends, it can press on the lifting sleeve 14 to form a downward pressure to drive the lifting sleeve 14 to move downward. A demolding component 3 is installed at the position of the inner core seat 13. The demolding component 3 can form an automatic demolding effect, which is convenient for workers to take out the bottle cap products.

[0021] like Figure 1 and Figure 2 As shown, the top of the inner wall of the mold sleeve 12 protrudes inward to form a circle of inner convex ring 121, and the bottom of the outer wall of the lifting sleeve 14 protrudes outward to form a circle of outer convex ring 141. The outer diameter size of the outer convex ring 141 matches the diameter size of the inner wall of the mold sleeve 12. The mold sleeve 12 plays a guiding role in the movement of the lifting sleeve 14, so that it can only move vertically. A lifting and lowering movement space of the outer convex ring 141 is reserved below the inner convex ring 121. In other words, there is a lifting and lowering movement space of the lifting sleeve 14 on the inner side of the mold sleeve 12. The inner convex ring 121 blocks the upward path of the outer convex ring 141, and the inner convex ring 121 plays a role in limiting the upward movement of the lifting sleeve 14. The lower mold 1 also includes a first spring 16, which is installed upright. The first spring 16 is partially connected to the lifting sleeve 14, and the first spring 16 is also partially connected to the mold base 11. At least two first springs 16 are installed upright, and the first spring 16 plays a role in elastic support of the lifting sleeve 14. Figure 1 As shown, the top of the lifting sleeve 14 is not subjected to pressure, and under the elastic force of the first spring 16, the lifting sleeve 14 moves upward to the high point position.

[0022] like Figure 1 and Figure 2As shown, the lower die 1 also includes a second spring 17. The number of second springs 17 installed corresponds to the number of extrusion modules 15. The two are installed one by one. The second spring 17 is installed horizontally. The second spring 17 is partially connected to the inner core seat 13. The second spring 17 is also partially connected to the extrusion module 15. Figure 1 As shown, in the mold opening state, the lifting sleeve 14 rises, and the space between the lifting sleeve 14 and the inner core seat 13 increases. At this time, under the elastic force of the second spring 17, the extrusion module 15 will be pushed to move toward the lifting sleeve 14 (outward expansion effect) until it fits the lifting sleeve 14. The space between the extrusion modules 15 will be expanded, and its size will be larger than the outer diameter of the arc-shaped convex surface of the bottle cap product, so that the bottle cap product can be demoulded smoothly. Figure 2 As shown, after the lifting sleeve 14 descends, the extrusion module 15 will be pushed to move toward the inner core seat 13 (inward contraction effect), and the second spring 17 is compressed at this time.

[0023] like Figure 1 and Figure 2 As shown, two extrusion bevels 142 are provided on the inner wall of the lifting sleeve 14, and two extrusion slopes 151 are provided on the outer wall of the extrusion module 15. The extrusion bevels 142 and the extrusion slopes 151 are arranged in a one-to-one correspondence, as shown in FIG. Figure 1 As shown, the extrusion bevel 142 cooperates with the extrusion slope 151. When the lifting sleeve 14 is pressed down, the extrusion module 15 will be pushed toward the inner core seat 13 due to the matching effect of the inclined surface, thereby achieving the purpose of inward extrusion of the extrusion module 15.

[0024] like Figure 1 and Figure 2 As shown, a plurality of positioning grooves 143 are provided on the top of the lifting sleeve 14, and the positioning grooves 143 are arranged in one-to-one correspondence with the positioning pressure columns 231. During the normal descent of the upper mold 2, the positioning pressure columns 231 will be inserted into the positioning grooves 143 first. By observing whether the positioning pressure columns 231 are inserted into the positioning grooves 143, it can be determined whether the upper mold is installed in place and whether the extrusion operation can be completed accurately.

[0025] like Figure 1 As shown, a molding groove 152 is provided on the inner wall of the extrusion module 15. The molding groove 152 is designed to allow a circle of arc-shaped convex surface to be extruded on the outer wall of the bottle cap product. A concave pattern is engraved in the molding groove 152, so that an embossed pattern can be formed on the extruded arc-shaped convex surface to meet production requirements.

[0026] like Figure 1As shown, a vertical slot 211 is provided on the mold core column 21, and the positioning auxiliary pressure sleeve 23 is movably sleeved on the outer side of the mold core column 21. The outer diameter of the mold core column 21 matches the inner diameter of the positioning auxiliary pressure sleeve 23. The mold core column 21 guides the positioning auxiliary pressure sleeve 23 so that it can only move vertically. A connecting pin 24 is fixedly installed on the positioning auxiliary pressure sleeve 23. The connecting pin 24 is installed in the vertical slot 211. The positioning auxiliary pressure sleeve 23 is connected and installed on the mold core column 21 through the connecting pin 24. This connection is a lifting and lowering movable connection, such as Figure 1 As shown, under the action of gravity, the positioning auxiliary pressure sleeve 23 will naturally move downward, and the connecting sleeve pin 24 is at the lowest point of the vertical slot 211. At this time, when the upper mold 2 is lowered to close the mold, the positioning pressure column 231 of the positioning auxiliary pressure sleeve 23 will first contact the lifting sleeve 14 of the lower mold 1, so as to observe the positioning and alignment of the upper mold 2 and the lower mold 1. When the upper mold 2 continues to descend, the positioning auxiliary pressure sleeve 23 will not generate downward pressure on the lifting sleeve 14. This is because of the existence of the spatial stroke of the vertical slot 211. At this time, the connecting sleeve pin 24 will rise in the vertical slot 211, reflecting On the positioning auxiliary pressure sleeve 23, the positioning auxiliary pressure sleeve 23 moves upward relative to the mold core column 21 until the connecting sleeve pin 24 runs to the top of the vertical long groove 211. At this time, the connecting sleeve pin 24 can no longer move upward, and finally forms a downward pressing effect of the positioning auxiliary pressure sleeve 23 and the mold core column 21. Under this effect, the lifting sleeve 14 is pressed down to form an inward extrusion operation of the extrusion module 15. The purpose of this structural design is to allow the extrusion head 22 to extrude the material into a rough shape first, and then form the arc convex surface and pattern on the outer wall through the lateral inward extrusion of the extrusion module 15.

[0027] like Figure 1 and Figure 2 As shown, the demoulding assembly 3 includes a demoulding rod 31 and a demoulding push cylinder 32. The demoulding rod 31 is installed through the inner core seat 13. The demoulding rod 31 is connected to the piston rod end of the demoulding push cylinder 32. The demoulding rod 31 is installed upright. The demoulding rod 31 is driven to rise and fall by the demoulding push cylinder 32. When the demoulding rod 31 rises, it can lift and eject the bottle cap product. After the demoulding rod 31 descends, it can remain flush with the top of the inner core seat 13 so as not to affect the bottle cap extrusion forming operation.

[0028] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A production mold for a special-shaped bottle cap, comprising a lower mold (1) and an upper mold (2), characterized in that: The lower mold (1) comprises a mold base (11), a mold outer sleeve (12) and an inner core seat (13); the mold outer sleeve (12) and the inner core seat (13) are fixedly mounted on the mold base (11); the inner core seat (13) is arranged at the inner central position of the mold outer sleeve (12); a lifting sleeve (14) capable of vertical lifting movement is mounted on the inner side of the mold base (11); a plurality of extrusion modules (15) are evenly mounted between the lifting sleeve (14) and the inner core seat (13); the extrusion modules (15) are elastically connected to the inner core seat (13); and the lifting sleeve (14) can push the inner core seat (13) when it moves downward. The extrusion module (15) moves toward the inner core seat (13), and the upper mold (2) includes a mold core column (21) and a positioning auxiliary pressure sleeve (23). The bottom of the mold core column (21) is fixedly connected to an extrusion head (22), and the positioning auxiliary pressure sleeve (23) is sleeved on the outside of the mold core column (21). The bottom of the positioning auxiliary pressure sleeve (23) is fixedly connected to a plurality of positioning pressure columns (231). The extrusion head (22) is arranged corresponding to the inner core seat (13), and the positioning pressure column (231) is arranged corresponding to the lifting sleeve (14). A demoulding component (3) is installed at the position of the inner core seat (13).

2. The production mold for a special-shaped bottle cap according to claim 1, characterized in that: The top of the inner wall of the mold sleeve (12) protrudes inward to form a circle of inner convex ring (121), and the bottom of the outer wall of the lifting sleeve (14) protrudes outward to form a circle of outer convex ring (141). The outer diameter of the outer convex ring (141) matches the diameter of the inner wall of the mold sleeve (12). A lifting and lowering movement space of the outer convex ring (141) is reserved below the inner convex ring (121). The inner convex ring (121) blocks the upward path of the outer convex ring (141). The lower mold (1) also includes a first spring (16). The first spring (16) is installed upright. The first spring (16) is partially connected to the lifting sleeve (14). The first spring (16) is also partially connected to the mold base (11). No less than two first springs (16) are installed upright.

3. The production mold for a special-shaped bottle cap according to claim 1, characterized in that: The lower mold (1) also includes a second spring (17), the number of installed second springs (17) corresponds to the number of extrusion modules (15), the second spring (17) is installed horizontally, the second spring (17) is partially connected to the inner core seat (13), and the second spring (17) is also partially connected to the extrusion module (15).

4. The production mold for a special-shaped bottle cap according to claim 1, characterized in that: The inner wall of the lifting sleeve (14) is provided with two extrusion bevels (142), and the outer wall of the extrusion module (15) is provided with two extrusion slopes (151), and the extrusion bevels (142) and the extrusion slopes (151) are arranged in a one-to-one correspondence.

5. The production mold for a special-shaped bottle cap according to claim 1, characterized in that: The top of the lifting sleeve (14) is provided with a plurality of positioning grooves (143), and the positioning grooves (143) are arranged in one-to-one correspondence with the positioning pressure columns (231).

6. The production mold for a special-shaped bottle cap according to claim 1, characterized in that: A forming groove (152) is provided on the inner wall of the extrusion module (15), and a concave pattern is engraved in the forming groove (152).

7. The production mold for a special-shaped bottle cap according to claim 1, characterized in that: The mold core column (21) is provided with a vertical slot (211), the positioning auxiliary pressure sleeve (23) is movably sleeved on the outer side of the mold core column (21), and a connecting sleeve pin (24) is fixedly installed on the positioning auxiliary pressure sleeve (23), and the connecting sleeve pin (24) is inserted into the vertical slot (211).

8. The production mold for a special-shaped bottle cap according to claim 1, characterized in that: The demoulding assembly (3) comprises a demoulding rod (31) and a demoulding push cylinder (32); the demoulding rod (31) is installed through the inner core seat (13); and the demoulding rod (31) is connected to the piston rod end of the demoulding push cylinder (32).

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