Hanging ring mounting structure of injection mold

Abstract

The utility model relates to the field of plastic processing. In particular to a lifting ring mounting structure of an injection mold, which is used for being matched with a base of the injection mold for mounting a lifting ring and comprises an extension seat arranged on the base, the base and the extension seat are respectively provided with a first threaded groove and a second threaded groove, and the first threaded groove and the second threaded groove are coaxially arranged. And the lifting ring is in threaded connection in the first threaded groove and the second threaded groove. The mounting device has the effect of mounting the lifting rings with different thread lengths on the premise of saving resources.

Description

Technical Field

[0001] The present application relates to the field of plastic processing, and in particular to a lifting ring mounting structure of an injection mold. Background Art

[0002] Plastic molds are tools used in the plastic processing industry to match plastic molding machines and give plastic products a complete configuration and precise size. Due to the wide variety of plastics and processing methods, the structures of plastic molding machines and plastic products vary in complexity, and the types and structures of plastic molds are also diverse. Injection molds are the most commonly used molding molds in the production of thermoplastic plastic products. The corresponding processing equipment for plastic injection molds is plastic injection molding machines. The plastic is first heated and melted in the heating barrel at the bottom of the injection machine, and then pushed by the screw or plunger of the injection machine, it enters the mold cavity through the injection machine nozzle and the pouring system of the mold. The plastic cools and hardens into shape, and the product is demolded to obtain the product.

[0003] During the transportation of the injection mold, threaded holes are usually opened at the four corners of the base of the injection mold. When transporting the injection mold, lifting rings are installed in each threaded hole. The lifting rings are lifted together by a gantry crane or other lifting equipment to lift the injection mold and complete the transportation of the injection mold.

[0004] In the process of transporting heavy injection molds such as automobile side panels, front windshields or grilles, the base of the injection mold must also adapt to the thread length of the corresponding lifting ring (the thickness of the injection mold base should not be less than the thread length of the lifting ring). This requires increasing the thickness of the base. On the one hand, the increase in the thickness of the base causes a waste of resources, and on the other hand, it further increases the weight of the injection mold. Utility Model Content

[0005] In order to achieve the installation of lifting rings with different thread lengths while saving resources, the present application provides a lifting ring installation structure for an injection mold.

[0006] The present application provides a suspension ring installation structure for an injection mold using the following technical solution:

[0007] A lifting ring mounting structure for an injection mold is used to cooperate with a base of the injection mold for lifting ring mounting, including an extended seat arranged on the base, a first thread groove and a second thread groove are respectively provided on the base and the extended seat, the first thread groove and the second thread groove are coaxially arranged, and the lifting ring is threadedly connected in the first thread groove and the second thread groove.

[0008] By adopting the above technical solution and setting the extension seat, it is possible to install a lifting ring with a longer thread length simply by superimposing the extension seat and the base without increasing the thickness of the base.

[0009] Optionally, a mounting groove is provided on a side of the base away from the hanging ring, and the extension seat is connected to the mounting groove.

[0010] By adopting the above technical solution, the extension seat can be connected in the installation groove, thereby realizing a superimposed connection with the thread in the thread groove of the base, thereby extending the length of the thread. When the lifting equipment lifts the injection mold, the force applied to the extension seat by the lifting ring can be effectively dispersed to the base through the contact between the extension seat and the wall of the installation groove, thereby reducing the pressure on the extension seat and increasing the stability of the entire lifting ring structure.

[0011] Optionally, the extension seat is fixedly connected to the side wall of the mounting groove.

[0012] By adopting the above technical solution, the extension seat is installed with the base by fixed connection.

[0013] Optionally, the extension seat is connected to a U-shaped clip, and the U-shaped clip is detachably mounted on the base.

[0014] By adopting the above technical solution, the extension seat is detachably mounted on the base through the U-shaped clip, so that the extension seat can be installed together with bases of different thicknesses and lifting rings of different lengths, and thus there is no need to produce an extension seat and lifting ring for each base, which effectively saves resources. At the same time, the U-shaped clip can transfer part of the pressure borne by the extension seat to the base when the extension seat is stressed, dispersing the pressure borne by the extension seat and making its installation more stable.

[0015] Optionally, a connecting column is provided on one side of the lifting ring, a connecting groove connected to the second threaded groove is provided at the bottom of the extension seat, and a fastener for fastening the connecting column is provided in the connecting groove.

[0016] By adopting the above technical solution, since the lifting ring is threadedly connected to the first and second thread grooves, the lifting ring may become loose in the first and second thread grooves under the action of external force. The connecting block is tightened by fasteners, thereby achieving the tightening of the lifting ring in the first and second thread grooves, making it more firmly installed with the extension seat.

[0017] Optionally, the fastener includes a spring connected to inner walls on opposite sides of the connecting groove and a fastening plate connected to an end of the spring away from the connecting groove, and a connecting space for the connecting column to be embedded is formed between the two fastening plates.

[0018] By adopting the above technical solution, after the connecting column enters the connecting groove, the fastening plates on both sides will squeeze the connecting column under the pressure of the spring. At this time, when the external force drives the lifting ring to rotate again, the connecting column will limit the movement of the lifting ring and reduce the probability of the lifting ring loosening.

[0019] Optionally, a plurality of springs are arranged at intervals along the height direction of the connecting groove.

[0020] By adopting the above technical solution and arranging multiple springs, the pressure exerted by the fastening plate on the connecting column is further increased.

[0021] Optionally, the lengths of the plurality of springs located on the side wall on the same side of the connecting groove gradually increase from an end close to the opening end of the connecting groove toward an end close to the bottom of the connecting groove.

[0022] By adopting the above technical solution, the different lengths of the springs on the same side of the connecting groove are set, which drives the two fastening plates to be set obliquely in the connecting groove, and makes the distance between the two fastening plates close to the open end of the connecting groove just long enough for the connecting column to enter the connecting space. After entering the connecting space, the connecting column will be squeezed by the spring and will gradually increase, so as to achieve a greater degree of force and tightening of the connecting column by the spring.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] By setting the extension seat, the second thread groove of the extension seat can be overlapped with the first thread groove of the base, so that the height of the first thread groove can be extended without increasing the thickness of the injection mold base, thereby realizing the installation of the lifting ring with a longer thread length;

[0025] By designing the extension seat and the base to be detachably connected, the extension seat can be installed on bases of different thicknesses and can be used with lifting rings of different thread lengths.

[0026] By setting the fastener, the spring can apply pressure to the connecting column through the fastening plate, thereby reducing the probability of the lifting ring connected to the connecting column loosening in the first and second thread grooves, and increasing the stability of the connection between the lifting ring and the base and the extension seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0028] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of Example 1 of the present application.

[0029] Figure 3 yes Figure 2 A magnified schematic diagram of center A.

[0030] Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0031] Figure 5 It is a partial cross-sectional schematic diagram of the overall structure of Example 2 of the present application.

[0032] Figure 6 yes Figure 5 A magnified schematic diagram of point B in the middle.

[0033] Explanation of the reference numerals in the accompanying drawings: 1. base; 11. mounting groove; 12. first threaded groove; 13. slot; 2. lifting ring; 21. threaded rod; 211. threaded head; 212. connecting rod; 213. connecting column; 22. U-shaped handle; 3. extension seat; 31. second threaded groove; 32. fastener; 321. spring; 322. fastening plate; 33. connecting groove; 4. U-shaped clip; 41. support rod; 42. limiting member; 421. first limiting ring; 422. second limiting ring. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The embodiment of the present application discloses a lifting ring installation structure of an injection mold, which is used to cooperate with the base 1 of the injection mold for the installation of the lifting ring 2. Figure 1 The injection mold includes a movable mold and a fixed mold connected together, the movable mold is connected to a base 1, the fixed mold is provided with a cavity, and the base 1 and the movable mold are provided with a pouring hole.

[0036] Reference Figure 1 and Figure 2 The lifting ring 2 includes a threaded rod 21 and a U-shaped handle 22. A threaded head 211 is fixedly connected to one end of the threaded rod 21, and two horizontally opposite connecting rods 212 are fixedly connected to the side wall of the threaded head 211. The two legs of the U-shaped handle 22 are rotatably connected to the two connecting rods 212 respectively. Example

[0037] Reference Figure 1 The lifting ring mounting structure of the injection mold includes an extension seat 3 connected to the side of the base 1 away from the lifting ring 2. Two groups of extension seats 3 are arranged at intervals along the length direction of the base 1, and the two groups of extension seats 3 are respectively located near the two opposite edges of the base 1. Each group of extension seats 3 is arranged at intervals along the width direction of the base 1. This application takes the example of two extension seats 3 being arranged at intervals along the width direction of the base 1 for explanation.

[0038] Reference Figure 1 and Figure 2 The extension seat 3 is cylindrical. A mounting groove 11 is provided on the side of the base 1 facing the movable mold, and the mounting groove 11 is provided in the area of ​​the base 1 not connected to the movable mold. The extension seat 3 is partially embedded in the mounting groove 11 and fixedly connected to the inner wall of the mounting groove 11. A first thread groove 12 is provided on the base 1, and a second thread groove 31 is provided on the extension seat 3. The first thread groove 12 and the second thread groove 31 are coaxially arranged.

[0039] When in use, the threaded rod 21 of the lifting ring 2 is inserted into the first thread groove 12 of the base 1 and continuously screwed, and the threaded rod 21 gradually moves toward the extension seat 3 until it enters the second thread groove 31 of the extension seat 3, and the threaded rod 21 is continuously screwed until it cannot be screwed, at which time the lifting ring 2 is installed with the base 1 and the extension seat 3. Then, the lifting device is connected to the U-shaped handle 22, and the lifting device is started to transport the injection mold.

[0040] Reference Figure 2 and Figure 3 Since the lifting ring 2 may become loose in the thread groove 12 due to external force during transportation or operation, a fastener 31 is provided for fastening the lifting ring 2 in the thread groove 12.

[0041] A connecting column 213 is fixedly connected to one end of the threaded rod 21 away from the threaded head 211. The diameter length of the cross section of the connecting column 213 is smaller than the diameter length of the cross section of the threaded rod 21. A square connecting groove 33 is opened in the extension seat 3. The connecting groove 33 is connected to the second threaded groove 31 and is located on the side of the second threaded groove 31 away from the base 1.

[0042] The fastener 32 includes a spring 321 fixed to the inner walls of the connecting groove 33 on opposite sides and a fastening plate 322 fixed to the end of the spring 321 on the same side of the connecting groove 33 away from the connecting groove 33. A connection space for the connecting column 213 to be inserted is formed between the two fastening plates 322. A plurality of springs 321 can be arranged at intervals along the height direction of the connecting groove 33 as needed. The present application takes the example of two springs 321 being arranged at intervals along the height direction of the connecting groove 33 as an example.

[0043] The length of the spring 321 located on the same side of the connecting groove 33 gradually increases from the end close to the second thread groove 31 to the end away from the second thread groove 31. When in use, the springs 321 of different lengths drive the fastening plates 322 to be arranged obliquely in the connecting groove 33. The distance between the two fastening plates 322 close to the thread groove 12 is just enough for one end of the connecting column 213 to be inserted under the drive of the two horizontally opposite springs 321. In the process of continuously screwing the threaded rod 21 into the thread groove 12, one end of the connecting column 213 will enter between the two fastening plates 322. As the connecting column 213 continuously moves toward the bottom of the connecting groove 33, it will gradually push the fastening plates 322 to move to both sides. After the spring 321 at the other end of the fastening plate 322 is squeezed, it will apply a force to the connecting column 213 through the fastening plate 322 in the reverse direction, so that the connecting column 213 is squeezed between the two fastening plates 322. Without the deliberate action of human power, it is difficult to rotate.

[0044] The implementation principle of the lifting ring installation structure of an injection mold in Example 1 of the present application is as follows: when in use, first insert the threaded rod 21 into the first thread groove 12 of the base 1, and then continuously screw the threaded rod 21 until it cannot be screwed. At this time, the threaded rod 21 is threadedly connected with the first thread groove 12 and the second thread groove 31 at the same time. At the same time, the connecting column 213 at the bottom of the threaded rod 21 also enters the connecting groove 33 during the continuous screwing of the threaded rod 21, and is squeezed by two squeezing columns under the action of the spring 321. Then, the lifting equipment is connected to the U-shaped handles 22 of the four lifting rings 2 in turn, and the lifting equipment is started to transport the injection mold. Through the lifting ring installation structure of an injection mold, the setting of the extension seat 3 can realize the installation of the lifting ring 2 with a longer thread length without increasing the thickness of the base 1, thereby reducing the waste of material for thickening the thickness of the base 1 and saving resources. Example

[0045] Reference Figure 4 , Figure 5 and Figure 6 The difference between this embodiment and the embodiment 1 is that the extension seat 3 is connected with a U-shaped clip 4, and the extension seat 3 is detachably mounted with the base 1 through the U-shaped clip 4. The two legs of the U-shaped clip 4 are of different lengths, and the extension seat 3 is fixedly connected to the inner side of the longer leg of the U-shaped clip 4. The side wall of the base 1 is provided with a slot 13 for inserting one end of the shorter leg of the U-shaped clip 4.

[0046] Reference Figure 6 The closed end of the U-shaped clip 4 includes a plurality of support rods 41 sleeved together, and a stopper 42 is provided between two adjacent support rods 41 to prevent the two from separating. The stopper 42 includes a first stopper ring 421 fixed on the outer wall of one support rod 41 and located near one end of the support rod 41, and a second stopper ring 422 fixed on the inner wall of another support rod 41 and located near one end of the support rod 41. When in use, first insert the shorter leg of the U-shaped clip 4 into the slot 13, then adjust the closed end of the U-shaped clip 4 so that the extension seat 3 on the U-shaped clip 4 reaches the installation groove 11 and is partially embedded in the installation groove 11, and then operate the threaded rod 21 so that the threaded rod 21 is installed in the threaded groove 12 on the base 1 and the extension seat 3. In this process, when the maximum relative displacement occurs between the two adjacent support rods 41, the first stopper ring 421 will abut against the second stopper ring 422 to prevent the two adjacent support rods 41 from separating.

[0047] The implementation principle of the lifting ring installation structure of an injection mold in Example 2 of the present application is as follows: when in use, first install the U-shaped clip 4 on the base 1 through the slot 13, then adjust the closed end of the U-shaped clip 4 to adapt to the thickness of the base 1, so that the extension seat 3 is partially embedded in the installation groove 11, and then insert the threaded rod 21 into the first thread groove 12 and continuously twist it until it cannot be twisted. At this time, the threaded rod 21 is threadedly connected with the first thread groove 12 and the second thread groove 31. Then, the lifting equipment is connected to the U-shaped handles 22 of the four lifting rings 2 in turn, and the lifting equipment is started to transport the injection mold. Through a lifting ring installation structure of an injection mold, the extension seat 3 is detachably connected to the base 1 through the U-shaped clamp 4, which not only realizes the installation of the lifting ring 2 with a longer thread length without increasing the thickness of the base 1, but also saves resources; at the same time, the U-shaped clamp 4 can adapt to bases 1 of different thicknesses by telescoping and cooperating with the extension seat 3. When the extension seat 3 is lifted by the lifting equipment, the U-shaped clamp 4 can transfer force to the base 1, thereby reducing the local pressure on the extension seat 3 and improving the stability of the entire structure.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lifting ring mounting structure for an injection mold, used to cooperate with a base (1) of the injection mold for mounting a lifting ring (2), characterized in that: The invention comprises an extension seat (3) arranged on the base (1), wherein a first thread groove (12) and a second thread groove (31) are respectively provided on the base (1) and the extension seat (3), wherein the first thread groove (12) and the second thread groove (31) are coaxially arranged, and the lifting ring (2) is threadedly connected in the first thread groove (12) and the second thread groove (31).

2. The lifting ring mounting structure of the injection mold according to claim 1, characterized in that: A mounting groove (11) is provided on a side of the base (1) away from the hanging ring (2), and the extension seat (3) is connected to the mounting groove (11).

3. The hanging ring mounting structure of the injection mold according to claim 2, characterized in that: The extension seat (3) is fixedly connected to the side wall of the installation groove (11).

4. The hanging ring mounting structure of the injection mold according to claim 2, characterized in that: The extension seat (3) is connected to a U-shaped clip (4), and the U-shaped clip (4) is detachably mounted on the base (1).

5. The lifting ring installation structure of the injection mold according to claim 1, characterized in that: A connecting column (213) is provided on one side of the lifting ring (2), a connecting groove (33) connected to the second thread groove (31) is provided at the bottom of the extension seat (3), and a fastener (32) for fastening the connecting column (213) is provided in the connecting groove (33).

6. The hanging ring mounting structure of the injection mold according to claim 5, characterized in that: The fastener (32) comprises a spring (321) connected to inner walls on opposite sides of the connecting groove (33) and a fastening plate (322) connected to an end of the spring (321) away from the connecting groove (33), wherein a connecting space for the connecting column (213) to be embedded is formed between the two fastening plates (322).

7. The lifting ring mounting structure of the injection mold according to claim 6, characterized in that: A plurality of springs (321) are arranged at intervals along the height direction of the connecting groove (33).

8. The lifting ring mounting structure of the injection mold according to claim 7, characterized in that: The lengths of the plurality of springs (321) located on the same side wall of the connecting groove (33) gradually increase from an end close to the opening end of the connecting groove (33) toward an end close to the bottom of the connecting groove (33).

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