Ejection structure for forming injection molding part with threads

Abstract

The utility model discloses an ejection structure for forming a threaded injection molding part, which comprises a box body, an accommodating hole is arranged on the inner wall of the box body, a servo motor is arranged in the accommodating hole, a swing arm is arranged on the servo motor, a connecting rod is arranged on the top end face of the swing arm, a sliding round block is arranged on the connecting rod, and a sliding block is arranged on the sliding round block. A fixing rod is arranged on the bottom wall of the box body, a fixing block is fixed to the tail end of the fixing rod, a first sliding groove is formed in the fixing block, a sliding block is arranged in the first sliding groove, a driven block is arranged on the end face of the sliding block, a sliding round block is located in a second sliding groove in the driven block, and a servo motor drives a swing arm to rotate. A sliding round block on a swing arm slides in a second sliding groove to push a driven block in the rotating direction, a sliding block slides in a first sliding groove, then a first meshing block is meshed with a first gear, a rotating shaft rotates to drive a second gear to be in meshing transmission with telescopic rods on the two sides, and then the telescopic rods intermittently stretch and contract to eject out an injection molding part.

Description

Technical Field

[0001] The utility model relates to the technical field of ejection of injection molded parts, in particular to an ejection structure for molding injection molded parts with threads. Background Art

[0002] Injection molded parts refer to finished parts formed by heating and melting plastic materials, injecting the molten plastic materials into the mold through the injection molding process, and then cooling and solidifying them.

[0003] The traditional ejection structure uses a cylinder for ejection, but it is relatively lacking in periodic automated control and cannot intermittently eject the two sides alternately, resulting in low production efficiency. Therefore, an ejection structure with threaded injection molding is needed to solve the above technical problems. Utility Model Content

[0004] The main purpose of the utility model is to provide an ejection structure for molding a threaded injection molded part, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A ejection structure for molding a threaded injection molded part, comprising a box body, an accommodating hole is opened on the inner wall of the box body, a servo motor is arranged in the accommodating hole, a swing arm is arranged on the servo motor, a connecting rod is arranged on the top end surface of the swing arm, a sliding round block is arranged on the connecting rod, a fixing rod is arranged on the bottom wall of the box body, a fixing block is fixed to the end of the fixing rod, a first slide groove is arranged on the fixing block, a sliding block is arranged in the first slide groove, a driven block is arranged on the end surface of the sliding block, and the sliding round block is located in a second slide groove on the driven block.

[0007] As a further solution of the utility model, first meshing blocks are equidistantly arranged on the top surface of the sliding block, a protrusion is provided on the fixed block, a rotating shaft is passed through the protrusion, and a first gear is provided at the end of the rotating shaft near the first meshing block.

[0008] As a further solution of the present invention, the other end of the rotating shaft is fixedly connected with a second gear.

[0009] As a further solution of the utility model, fixed support rods are provided on both sides of the second gear, telescopic rods are sleeved on the fixed support rods, and second meshing blocks are equidistantly arranged on the telescopic rods.

[0010] As a further solution of the utility model, a top end of the telescopic rod is provided with an ejection block.

[0011] As a further solution of the utility model, when the swing arm rotates 90 degrees, the first engagement block meshes with the first gear and the first gear rotates 360 degrees.

[0012] As a further solution of the utility model, when the first gear rotates 360 degrees, the second gear rotates 360 degrees and the telescopic rods on both sides are respectively extended to the maximum length and contracted to the minimum length.

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

[0014] 1. The servo motor drives the swing arm to rotate. The sliding round block on the swing arm slides in the second slide slot and pushes the driven block in the direction of rotation, so that the sliding block slides in the first slide slot, and then the first meshing block meshes with the first gear. The rotation of the rotating shaft drives the second gear to mesh with the telescopic rods on both sides, so that the telescopic rods can intermittently extend and contract to eject the injection molded parts.

[0015] 2. Telescopic rods are provided on both sides of the second gear, which can return to their original positions after the swing arm rotates 90 degrees through the forward and reverse rotation of the servo motor, so that the telescopic rods on both sides are in the extended and contracted states respectively, and the two sides can be ejected alternately periodically to speed up production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall cross-sectional structure of an ejector structure for molding a threaded injection molded part according to the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of an ejector structure for molding a threaded injection molded part according to the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a ejector structure for molding a threaded injection molded part according to the utility model;

[0019] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle.

[0020] In the figure: 1. box body; 2. servo motor; 3. swing arm; 4. connecting rod; 5. sliding round block; 6. fixed rod; 7. fixed block; 8. first slide groove; 9. sliding block; 10. driven block; 11. second slide groove; 12. first meshing block; 13. protrusion; 14. rotating shaft; 15. first gear; 16. second gear; 17. fixed support rod; 18. telescopic rod; 19. second meshing block; 20. ejector block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, an ejection structure for forming a threaded injection molded part comprises a box body 1, an accommodating hole is opened on the inner wall of the box body 1, a servo motor 2 is arranged in the accommodating hole, a swing arm 3 is arranged on the servo motor 2, a connecting rod 4 is arranged on the top end surface of the swing arm 3, a sliding round block 5 is arranged on the connecting rod 4, a fixing rod 6 is arranged on the bottom wall of the box body 1, a fixing block 7 is fixed to the end of the fixing rod 6, a first slide groove 8 is arranged on the fixing block 7, a sliding block 9 is arranged in the first slide groove 8, a driven block 10 is arranged on the end surface of the sliding block 9, and the sliding round block 5 is located in the second slide groove 11 on the driven block 10. The servo motor 2 can rotate the swing arm 3 90 degrees by forward and reverse rotation and then return to its original position, so that the second gear 16 can be controlled to engage with the telescopic rod 18 to make it extend and contract alternately.

[0023] In this embodiment, first meshing blocks 12 are arranged equidistantly on the top surface of the sliding block 9, a protrusion 13 is provided on the fixed block 7, a rotating shaft 14 is passed through the protrusion 13, and a first gear 15 is provided at the end of the rotating shaft 14 near the first meshing block 12. The first meshing block 12 is engaged with the first gear 15 to make the first gear 15 rotate itself, thereby driving the second gear 16 at the end of the rotating shaft 14 to rotate.

[0024] In this embodiment, the other end of the rotating shaft 14 is fixedly connected to a second gear 16 , and the second gear 16 can be engaged with the telescopic rod 18 to extend or contract the telescopic rod 18 .

[0025] In this embodiment, fixed support rods 17 are provided on both sides of the second gear 16, and telescopic rods 18 are sleeved on the fixed support rods 17. Second engaging blocks 19 are equidistantly arranged on the telescopic rods 18. When the telescopic rods 18 on both sides are engaged with the second gear 16, one side is extended and the other side is contracted, so that the injection molded parts are ejected alternately on both sides to speed up the production.

[0026] In this embodiment, an ejection block 20 is provided at the top end of the telescopic rod 18, and the ejection block 20 is used to eject the injection molded part.

[0027] In this embodiment, when the swing arm 3 rotates 90 degrees, the first engaging block 12 engages with the first gear 15 and the first gear 15 rotates 360 degrees. When the first gear 15 rotates 360 degrees, the second gear 16 rotates 360 degrees and the telescopic rods 18 on both sides are extended to the maximum length and contracted to the minimum length respectively. In this way, the telescopic rod 18 can be extended or contracted to the maximum distance at a small angle rotation, thereby accelerating the ejection speed.

[0028] It should be noted that the utility model is an ejection structure for threaded injection molded parts. When in use, the servo motor 2 rotates the swing arm 3 90 degrees, and the sliding round block 5 at the end of the connecting rod 4 on the swing arm 3 slides in the second slide groove 11 and pushes the driven block 10 in the rotation direction, driving the sliding block 9 to slide in the first slide groove 8 on the fixed block 7. At the same time, the first engaging block 12 engages with the first gear 15 to rotate the first gear 15 itself, and the rotating shaft 14 rotates at the same time, driving the second gear 16 to rotate and engage with the second engaging blocks 19 on the telescopic rods 18 on both sides at the same time, so that one side can be quickly extended to eject the injection molded part, and the other side can be contracted to the minimum length, so that alternate ejection of the two sides can be achieved.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An ejector structure for molding a threaded injection molded part, characterized in that: The invention comprises a box body (1), wherein a receiving hole is provided on the inner wall of the box body (1), a servo motor (2) is provided in the receiving hole, a swing arm (3) is provided on the servo motor (2), a connecting rod (4) is provided on the top end surface of the swing arm (3), a sliding round block (5) is provided on the connecting rod (4), a fixing rod (6) is provided on the bottom wall of the box body (1), a fixing block (7) is fixed at the end of the fixing rod (6), a first sliding groove (8) is provided on the fixing block (7), a sliding block (9) is provided in the first sliding groove (8), a driven block (10) is provided on the end surface of the sliding block (9), and the sliding round block (5) is located in a second sliding groove (11) on the driven block (10).

2. The ejector structure for molding a threaded injection molded part according to claim 1, characterized in that: The first meshing blocks (12) are arranged at equal intervals on the top surface of the sliding block (9), the fixed block (7) is provided with a convex block (13), a rotating shaft (14) is passed through the convex block (13), and a first gear (15) is provided at the end of the rotating shaft (14) near the first meshing block (12).

3. The ejector structure for molding a threaded injection molded part according to claim 2, characterized in that: The other end of the rotating shaft (14) is fixedly connected to a second gear (16).

4. The ejector structure for molding a threaded injection molded part according to claim 3, characterized in that: Fixed support rods (17) are provided on both sides of the second gear (16), a telescopic rod (18) is sleeved on the fixed support rod (17), and second meshing blocks (19) are arranged at equal distances on the telescopic rod (18).

5. The ejector structure for molding a threaded injection molded part according to claim 4, characterized in that: A top end of the telescopic rod (18) is provided with an ejection block (20).

6. The ejector structure for molding a threaded injection molded part according to claim 1, characterized in that: When the swing arm (3) rotates 90 degrees, the first meshing block (12) meshes with the first gear (15) and the first gear (15) rotates 360 degrees.

7. The ejector structure for molding a threaded injection molded part according to claim 6, characterized in that: When the first gear (15) rotates 360 degrees, the second gear (16) rotates 360 degrees and the telescopic rods (18) on both sides are respectively extended to a maximum length and contracted to a minimum length.

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