Theft-proof big circle mold

Abstract

The utility model discloses a theftproof big circle mould belongs to mould technical field, including upper model cavity, be provided with upper mould insert no.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an anti-theft large ring mold. Background Technology

[0002] The anti-theft ring is made of PP material with an outer anti-rotation rib and an inner snap-fit ​​rib and thread. The snap-fit ​​rib must have good fit with the pump body. During drop and high-temperature tests, the pump body should not detach, and there should be no backflow or other issues at the connection point. Similarly, the bottle should not detach or crack, and the anti-theft teeth should not rotate backwards. After the product is formed, the upper mold has snap-fit ​​parts. When the upper and lower molds separate, the snap-fit ​​parts rise with the upper mold, which can easily damage the snap-fit ​​ribs or cause the product to stick to the upper mold. Utility Model Content

[0003] The purpose of this invention is to solve the problem mentioned in the background art that after the product is formed, the upper mold has a locking point on the product. When the upper mold and the lower mold separate, the locking point rises with the upper mold, which can easily cause the product locking ribs to be damaged or the product to stick to the upper mold.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An anti-theft large ring mold includes an upper mold cavity, in which an upper mold insert 1 is disposed, an upper mold insert 2 is disposed above, and an upper mold insert 3 is disposed inside the upper mold insert 2. The bottoms of the upper mold insert 1, upper mold insert 2, and upper mold insert 3 all contact the product. The product is located between the bottoms of the upper mold insert 2 and upper mold insert 3. The outer surface of the upper mold insert 3 has a locking platform. The upper mold insert 2 and upper mold insert 3 move upward sequentially when the upper mold and lower mold separate.

[0006] Preferably, the upper mold cavity has a step that moves along with the upper mold insert.

[0007] Preferably, the outer surface of the upper mold insert two has a second step, and the second step is in contact with the top surface of the upper mold insert one.

[0008] Preferably, the inner wall of the upper mold insert has a step three, and the step three is spaced apart from the upper mold insert three.

[0009] Preferably, a spring is provided inside the upper mold insert, and the spring needs to be kept in a compressed state.

[0010] Preferably, the lower surface of the upper mold cavity contacts a lower mold push sleeve, the lower mold push sleeve has a protrusion and an anti-rotation sleeve, the tops of the lower mold push sleeve and the anti-rotation sleeve are respectively located on both sides of the product, and a rotatable lower mold threaded core is provided inside the anti-rotation sleeve.

[0011] Preferably, the lower die threaded core is provided with a liftable ejector sleeve, and the ejector sleeve is provided with an ejector pin.

[0012] Preferably, a mechanical opener / closer is provided on the lower side of the ejector pin.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The second upper mold insert is first pulled out to make room, preventing the product's locking platform from being deformed or stuck to the mold when the third upper mold insert is forcibly removed. Combined with spring assistance, the third upper mold insert and the product remain relatively stationary, ensuring even force distribution during demolding of the locking platform.

[0015] The lower die threaded core is driven by a hydraulic cylinder to rotate the gear, thus achieving thread demolding. Simultaneously, the ejector sleeve and ejector pin are ejected synchronously under the action of a mechanical opening and closing device, pushing the product away from the lower die push sleeve and anti-rotation sleeve. This design avoids problems such as product tilting or jamming caused by the anti-rotation teeth, anti-theft teeth and the inner wall of the mold. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the main body, fastening rib, thread, anti-theft tooth, and anti-rotation tooth of this utility model.

[0019] Figure 3 This is a schematic diagram of the upper and lower molds of this utility model.

[0020] Figure 4 This is a schematic diagram of the upper mold cavity and the lower mold push sleeve of this utility model.

[0021] Figure 5 This is a schematic diagram of the lower mold push sleeve and anti-rotation sleeve of this utility model.

[0022] Figure 6 This is a schematic diagram of the upper mold insert one, upper mold insert two, and upper mold insert three of this utility model.

[0023] Figure 7 This is a schematic diagram of the upper mold insert II after it has been raised.

[0024] Figure 8 This is a schematic diagram showing the separation of the upper and lower molds of this utility model.

[0025] Figure 9 This is a schematic diagram showing the separation of the screw thread and the lower die thread core of this utility model.

[0026] Figure 10 This is a schematic diagram of the main body of this utility model after it has been lifted up.

[0027] Drawing number explanation: 1. Upper mold cavity; 2. Upper mold insert one; 3. Upper mold insert two; 4. Upper mold insert three; 5. Snap-on platform; 6. Step one; 7. Step two; 8. Step three; 9. Spring; 10. Lower mold push sleeve; 11. Protrusion one; 12. Anti-rotation sleeve; 13. Protrusion two; 14. Lower mold threaded rotating core; 15. Gear; 16. Hydraulic cylinder; 17. Rack; 18. Sleeve; 19. Ejector pin; 20. Plate one; 21. Plate two; 22. Plate three; 23. Plate four; 24. Plate five; 25. Plate six; 26. Plate seven; 27. Plate eight; 28. Plate nine; 29. ​​Plate ten; 30. Mechanical opener / closer; 31. Body; 32. Snap-on rib; 33. Thread; 34. Anti-theft tooth; 35. Anti-rotation tooth. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0030] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0031] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0032] Please see Figures 1-10An anti-theft large ring mold includes an upper mold cavity 1, within which is disposed an upper mold insert 1 2 and an upper mold insert 2 3. Both upper mold inserts 1 2 and 2 2 have injection channels. An upper mold insert 3 3 contains an upper mold insert 4. The bottoms of all three inserts (1, 2, and 3) contact the product. The product is positioned between the bottoms of the upper mold inserts 2 3 and 3 4. The outer surface of the upper mold insert 3 4 has a locking platform 5. The upper mold inserts 2 3 and 3 4 move upwards sequentially when the upper and lower molds separate. The upward movement of the upper mold insert 2 3 creates a clearance space, facilitating the product's deformation and detachment from the upper mold insert 3 4.

[0033] The upper mold cavity 1 has a step 6 that moves the upper mold insert 2. The outer surface of the upper mold insert 3 has a step 7 that contacts the top surface of the upper mold insert 2. The inner wall of the upper mold insert 3 has a step 8 that is spaced from the upper mold insert 4.

[0034] A spring 9 is installed inside the upper mold insert 3 4, and the spring 9 needs to be kept in a compressed state. The lower surface of the upper mold cavity 1 contacts the lower mold push sleeve 10. The lower mold push sleeve 10 has a first protrusion 11 and an anti-rotation sleeve 12 inside the lower mold push sleeve 10. The outer surface of the anti-rotation sleeve 12 has a second protrusion 13. The first protrusion 11 and the second protrusion 13 are shown in the figure. The tops of the lower mold push sleeve 10 and the anti-rotation sleeve 12 are located on both sides of the product, respectively. A rotatable lower mold threaded core 14 is installed inside the anti-rotation sleeve 12. A gear 15 is fixed on the lower mold threaded core 14. A hydraulic cylinder 16 is installed on the lower mold. The extended end of the hydraulic cylinder 16 is fixed with the rack 17 of the meshing gear 15. A liftable ejector sleeve 18 is installed inside the lower mold threaded core 14. A mechanical opening and closing device 30 is installed on the lower side of the ejector pin 19.

[0035] Therefore, the anti-rotation teeth and anti-theft teeth 34 are located between the lower mold push sleeve 10 and the lower mold anti-rotation sleeve 12. In order to prevent the product from tilting and getting stuck in the lower mold push sleeve 10 and the lower mold anti-rotation sleeve 12, thus preventing the product from being demolded normally, ejector pins 19 are provided inside the ejector sleeve 18.

[0036] The upper mold includes plate 1 20, plate 2 21, plate 3 22 and plate 4 23, and the lower mold includes plate 5 24, plate 6 25, plate 7 26, plate 8 27, plate 9 28 and plate 10 29. The mechanical opener / closer 30 is located inside plate 9 28 and is used for the rise of the ejector sleeve 18 and the ejector pin 19.

[0037] The product includes a body 31, which has a snap-fit ​​rib 32, a thread 33, an anti-theft tooth 34, and an anti-rotation tooth 35.

[0038] Parting surfaces: PL1 (runner separation), PL2 (yield), PL3 (runner separation), PL4 (main parting surface, upper and lower mold separation), PL5 (threaded core demolding).

[0039] Mold opening process

[0040] Step 1: PL1 mold opening (runner separation):

[0041] Action: First, open the parting surface PL1 to separate the runner from the product. This prevents the runner material from sticking to the product and prepares for subsequent core pulling.

[0042] Step 2: PL2 mold opening (making room):

[0043] When parting surface PL2 opens, the upper mold insert 2 (3) is pulled out first, allowing the upper mold insert 3 (4) to be forcefully disengaged from the retaining platform 5. The upper mold insert 3 (4), assisted by spring 9, ensures that it does not move with the product. The head of the upper mold insert 3 (4) engages with ejector pin 19, and is pressed back into place by ejector pin 19 during mold closing. The initial movement of upper mold insert 2 (3) creates space before upper mold insert 3 (4) is used, ensuring smooth demolding of the retaining platform 5 and preventing the upper mold insert 3 (4) from deforming the product.

[0044] Step 3: PL3 mold opening and runner separation:

[0045] The parting surface PL3 opens, and the flow channel detaches.

[0046] Step 4: PL4 mold opening (separation of main parting surface):

[0047] The main parting surface PL4 opens (the opening sequence is controlled by a nylon opener / closer), the upper mold and the lower mold separate, and the product snap-fit ​​rib 32 is removed from the upper mold cavity 1 and transferred to the lower mold side for subsequent demolding.

[0048] Step 5: PL5 mold opening (threaded core demolding):

[0049] The hydraulic cylinder 16 drives the lower mold threaded core 14 to rotate via the gear plate and gear 15. The lower mold threaded core 14 remains longitudinally stationary, causing plates 24 and 25 to open, thus demolding the thread 33. After demolding the thread 33, to prevent the product from tilting during ejection, the mechanical opening and closing device 30 activates, causing the ejector sleeve 18 and ejector pin 19 to eject synchronously, pushing the product away from the lower mold push sleeve 10 and anti-rotation sleeve 12. This prevents the product from tilting due to jamming caused by the anti-rotation teeth 35 and anti-theft teeth 34. This ensures synchronous demolding of the thread 33 and anti-rotation teeth 35, preventing product jamming or deformation. The robotic arm removes the part, and the mold is reset.

[0050] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A large anti-theft mold, characterized in that, The upper mold cavity (1) is provided with an upper mold insert 1 (2) and an upper mold insert 2 (3). An upper mold insert 3 (4) is provided in the upper mold insert 2 (3). The bottoms of the upper mold insert 1, the upper mold insert 2 (3) and the upper mold insert 3 (4) are in contact with the product. There is a product between the bottoms of the upper mold insert 2 (3) and the upper mold insert 3 (4). The outer surface of the upper mold insert 3 (4) has a locking platform (5). The upper mold insert 2 (3) and the upper mold insert 3 (4) move upwards one after the other when the upper mold and the lower mold are separated.

2. The anti-theft large ring mold according to claim 1, characterized in that: The upper mold cavity (1) has a step (6) that moves with the upper mold insert (2).

3. The anti-theft large ring mold according to claim 2, characterized in that: The outer surface of the upper mold insert 2 (3) has a step 2 (7), which is in contact with the top surface of the upper mold insert 1 (2).

4. The anti-theft large ring mold according to claim 3, characterized in that: The inner wall of the upper mold insert 2 (3) has a step 3 (8), and the step 3 (8) is spaced from the upper mold insert 3 (4).

5. The anti-theft large ring mold according to claim 1, characterized in that: A spring (9) is provided inside the upper mold insert (4), and the spring (9) needs to be kept in a compressed state.

6. The anti-theft large ring mold according to claim 1, characterized in that: The lower surface of the upper mold cavity (1) is in contact with the lower mold push sleeve (10). The lower mold push sleeve (10) has a protrusion (11) inside and an anti-rotation sleeve (12) inside. The tops of the lower mold push sleeve (10) and the anti-rotation sleeve (12) are located on both sides of the product. The anti-rotation sleeve (12) is provided with a rotatable lower mold threaded core (14).

7. The anti-theft large ring mold according to claim 6, characterized in that: The lower die threaded core (14) is provided with a liftable ejector sleeve (18), and the ejector sleeve (18) is provided with an ejector pin (19).

8. The anti-theft large ring mold according to claim 7, characterized in that: A mechanical opener (30) is provided on the lower side of the ejector pin (19).

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