Injection mold structure on an injection molding machine

Abstract

The utility model belongs to injection molding machine mould technical field especially relates to a kind of injection mould structure on injection molding machine, including mould and insert, insert has several, there is support column and stem on mould, there is connecting rod on stem, mould, insert, support column, stem and connecting rod are tightly connected together by the way of screw thread connection, form a stable overall structure, in injection molding process, relative displacement between each component cannot occur, ensure the quality and dimensional accuracy of product, when replacing insert, only need to rotate stem and connecting rod, can easily disassemble and install insert, operation process is simple and fast, since there is no spring device and other components, avoid the problem that insert pops out too fast or pops out distance too large;Compared with prior art, the utility model improves stability and improves the safety of operator.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine mold technology, and more specifically, it relates to an injection mold structure for an injection molding machine. Background Technology

[0002] In the injection molding process, mold inserts, as an important component of the mold, play a crucial role in shaping the specific shape and structure of the product. To meet the production needs of different products, it is frequently necessary to replace the mold inserts.

[0003] For example, the injection mold structure for replacing inserts on an injection molding machine disclosed in authorization announcement number CN205467063U includes a mold, an insert, and a positioning plate. The mold has a cavity. One end of the insert extends out of the mold and is attached to the positioning plate, while the other end passes into the cavity. The bottom of the insert has a fixing hole. The positioning plate also has a spring device and a positioning wave screw. It also includes a positioning guide block and a connecting rod. The positioning guide block is connected to the connecting rod, and the connecting rod is inserted into the fixing hole of the insert. The bottom of the insert abuts against the top of the spring device, and the positioning wave screw is located below the positioning guide block.

[0004] As mentioned above, several components, such as spring devices, positioning wave screws, positioning guide blocks, and linkage rods, cannot fully mesh. During the injection molding process, the inserts may experience slight displacement due to the injection pressure, resulting in poor stability and affecting product quality and dimensional accuracy. Because of the spring mechanism, the spring force is difficult to control precisely, which can lead to the insert popping out too quickly or too far, increasing the safety risk to the operator. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an injection mold structure for injection molding machines that improves stability and enhances operator safety.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An injection mold structure for an injection molding machine includes a mold and inserts, wherein there are several inserts, and each insert is detachably connected to the mold. The mold has a slot for one end of the insert to extend into, and the insert is threaded into the slot. The mold has a support column on one side of the insert and a rod on one side of the mold. The support column is fixedly connected to the mold. The rod passes through the mold and insert in sequence and extends into the support column. The rod is threadedly connected to the mold, insert, and support column, respectively. The rod body is equipped with a connecting rod that passes through the rod body and extends into the mold, and the connecting rod is threadedly connected to the mold.

[0007] The present invention is further configured such that: the mold and the insert are provided with through holes for the rod body to pass through, the through holes are provided with a first internal thread, the support column is provided with a hole, the hole is provided with a second internal thread, and the outer wall of the rod body is provided with an external thread, the external thread being helically connected to the first internal thread and the second internal thread respectively.

[0008] The present invention is further configured such that: there are two connecting rods, two through holes corresponding to the connecting rods are opened on the rod body, a blind hole is opened on the mold, an upper threaded ring is provided in the blind hole, and a lower threaded ring is provided on the outer wall of the connecting rod and is helically connected to the upper threaded ring.

[0009] The present invention is further configured such that: the inner wall of the slot is provided with thread one, and the outer wall of the insert is provided with thread two, and thread two is helically connected to thread one.

[0010] The present invention is further configured such that: a cap is provided on the rod body, and the diameter of the cap is larger than the diameter of the through hole on the mold.

[0011] The present invention is further configured such that: a limiting cover is provided on the connecting rod, and the diameter of the limiting cover is larger than the diameter of the through hole.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are as follows: The mold, inserts, support columns, rods, and connecting rods are tightly connected together using threaded connections, forming a stable integrated structure. During the injection molding process, there is no relative displacement between the components, ensuring product quality and dimensional accuracy.

[0013] When replacing inserts, they can be easily removed and installed by simply rotating the rod and connecting rod. The operation is simple and quick. Since there are no spring devices or other parts, the problem of inserts popping out too quickly or too far is avoided, thus improving the safety of operators. Attached Figure Description

[0014] Figure 1 This is an exploded view of an embodiment of the present utility model; Figure 2 This is a structural schematic diagram of an embodiment of the present utility model.

[0015] 1. Mold, 2. Insert, 3. Slot, 4. Support column, 5. Rod, 6. Connecting rod, 7. Through hole, 8. First internal thread, 9. Hole, 10. Second internal thread, 11. External thread, 12. Through hole, 13. Blind hole, 14. Upper threaded ring, 15. Lower threaded ring, 16. Thread one, 17. Thread two, 18. Cover, 19. Limiting cover. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] like Figures 1 to 2 As shown, the injection mold structure on the injection molding machine includes mold 1 and inserts 2. There are three inserts 2, namely insert pin, insert block and insert pillar. All three inserts 2 are detachably connected to mold 1, which greatly improves the versatility of mold 1.

[0019] The inner wall of slot 3 is fitted with thread 16, and the outer wall of insert 2 is fitted with thread 17. Thread 17 and thread 16 are connected by a screw thread. Through this threaded connection, insert 2 can be firmly fixed to mold 1, while also facilitating disassembly and replacement.

[0020] The mold 1 is equipped with a support column 4 and a rod 5. The support column 4 provides stable support for the rod 5, ensuring that the rod 5 will not shift during the injection molding process. The rod 5 passes through the mold 1 and the insert 2 in sequence and extends into the support column 4. The rod 5 is threadedly fixed to the mold 1, the insert 2 and the support column 4 respectively. This threaded connection tightly connects the mold 1, the insert 2 and the support column 4 together, enhancing the stability of the entire mold 1 structure.

[0021] The rod body 5 is equipped with two connecting rods 6. The two connecting rods 6 further increase the connection strength between the rod body 5 and the mold 1, improve the overall stability of the mold 1, and effectively prevent relative displacement between the components during the injection molding process.

[0022] The rod body 5 is provided with a cover 18. The diameter of the cover 18 is larger than the diameter of the through hole 7 on the mold 1. The cover 18 can prevent plastic from entering the gap between the rod body 5 and the mold 1 during the injection molding process, ensuring the normal use of the mold 1. The connecting rod 6 is provided with a limiting cover 19. The diameter of the limiting cover 19 is larger than the diameter of the through hole 12. The limiting cover 19 can prevent the connecting rod 6 from coming out of the rod body 5 during the injection molding process, thus improving the safety of the mold 1 structure.

[0023] Assemble insert 2: First, firmly fix the support column 4 to one side of the mold 1 by welding, bolting or other means to ensure that the connection between the support column 4 and the mold 1 is stable and reliable. Then, align one end of insert 2 with the slot 3 opened on the mold 1 and slowly rotate insert 2 so that the thread 17 on the outer wall of insert 2 gradually engages with the thread 16 on the inner wall of slot 3 until insert 2 is completely screwed into slot 3 to achieve threaded connection between insert 2 and slot 3. Next, pass the rod 5 through the through hole 7 on the mold 1 and insert 2 in sequence and extend it into the hole 9 of support column 4.

[0024] Slowly rotate rod 5 so that the external thread 11 on the outer wall of rod 5 is screwed into the first internal thread 8 in the through hole 7 on mold 1 and insert 2 and the second internal thread 10 in the hole 9 of support column 4, respectively, and fix rod 5 on mold 1, insert 2 and support column 4. During the rotation of rod 5, pay attention to maintaining the verticality of rod 5 and avoid skewing.

[0025] Finally, the connecting rod 6 is passed through the through hole 12 on the rod body 5 and inserted into the blind hole 13 on the mold 1. The connecting rod 6 is slowly rotated so that the lower threaded ring 15 on the outer wall of the connecting rod 6 is screwed into the upper threaded ring 14 in the blind hole 13, thus fixing the connecting rod 6 to the rod body 5 and the mold 1. A cover 18 is installed on the rod body 5, with the diameter of the cover 18 being larger than the diameter of the through hole 7 on the mold 1, ensuring that the cover 18 can completely cover the through hole 7. A limiting cover 19 is installed on the connecting rod 6, with the diameter of the limiting cover 19 being larger than the diameter of the through hole 12 on the rod body 5, to prevent the limiting cover 19 from coming out of the through hole 12.

[0026] Replace insert 2: First remove connecting rod 6; then remove rod body 5; finally remove insert 2. First, use a suitable tool to rotate the connecting rod 6 so that the lower thread ring 15 on the outer wall of the connecting rod 6 separates from the upper thread ring 14 in the blind hole 13 of the mold 1. Then, pull the connecting rod 6 out of the rod body 5. Next, rotate the rod body 5 so that the external thread 11 on the outer wall of the rod body 5 separates from the first internal thread 8 on the mold 1 and the insert 2 and the second internal thread 10 on the support column 4, respectively. Then, the rod 5 is pulled out from the mold 1 and the insert 2. Finally, the insert 2 is rotated so that the thread 17 on the outer wall of the insert 2 is separated from the thread 16 on the inner wall of the slot 3 on the mold 1, and the insert 2 is removed from the mold 1.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An injection mold structure for an injection molding machine, comprising a mold (1) and an insert (2), characterized in that, The insert (2) is of several kinds, and each insert (2) is detachably connected to the mold (1). The mold (1) has a slot (3) for one end of the insert (2) to be inserted into, and the insert (2) is threaded into the slot (3). The mold (1) is provided with a support column (4) placed on one side of the insert (2) and a rod (5) placed on one side of the mold (1). The support column (4) is fixedly connected to the mold (1). The rod (5) passes through the mold (1) and the insert (2) in sequence and extends into the support column (4). The rod (5) is threadedly connected to the mold (1), the insert (2), and the support column (4) respectively. A connecting rod (6) is provided on the rod body (5). The connecting rod (6) passes through the rod body (5) and extends into the mold (1). The connecting rod (6) is threadedly connected to the mold (1).

2. The injection mold structure on an injection molding machine according to claim 1, wherein, Both the mold (1) and the insert (2) are provided with through holes (7) for the rod body (5) to pass through. The through holes (7) are provided with a first internal thread (8). The support column (4) is provided with a hole (9). The hole (9) is provided with a second internal thread (10). The outer wall of the rod body (5) is provided with an external thread (11). The external thread (11) is spirally connected to the first internal thread (8) and the second internal thread (10) respectively.

3. The injection mold structure on an injection molding machine according to claim 1, wherein, The connecting rod (6) has two parts. The rod body (5) has two through holes (12) corresponding to the connecting rod (6). The mold (1) has a blind hole (13). The blind hole (13) has an upper threaded ring (14). The outer wall of the connecting rod (6) has a lower threaded ring (15) that is spirally connected to the upper threaded ring (14).

4. The injection mold structure on an injection molding machine according to claim 1, wherein, The inner wall of the slot (3) is provided with thread one (16), and the outer wall of the insert (2) is provided with thread two (17), and thread two (17) is spirally connected to thread one (16).

5. The injection mold structure on an injection molding machine according to claim 1, wherein, The rod (5) is provided with a cover (18), the diameter of which is larger than the diameter of the through hole (7) on the mold (1).

6. The injection mold structure on an injection molding machine according to claim 3, wherein, The connecting rod (6) is provided with a limiting cover (19), the diameter of which is larger than the diameter of the through hole (12).

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