A structure of row bit delay pull-in advance

Abstract

The utility model discloses a structure of row position delay retreats and advances, including first mounting seat, the second mounting seat of arrangement in first mounting seat top, the back mould core of arrangement in first mounting seat, and the front mould core of arrangement in second mounting seat and located the top of back mould core, the top one end of first mounting seat is equipped with the first sliding slot, and the first sliding slot movable arrangement has the row position seat, the one end of row position seat is connected with row position insert piece to row position insert piece, and the row position insert piece is installed with the row position insert needle, the row position insert needle is arranged and extends outward from the one end of row position insert piece close to back mould core, the top of row position seat is equipped with the first jack -in hole of through to its bottom, the utility model discloses the row position pull -out block is used to realize the purpose of row position delay retreat and advance, relative traditional oil cylinder mode, can save the cost, simplify production flow, effectively shorten the production cycle time, improve the overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and in particular to a structure for a sliding position with delayed retraction and advanced advance. Background Technology

[0002] In the production of plastic products, it is often necessary to design a front mold and sliding mechanism that interlocks. The traditional approach is to use hydraulic cylinders to achieve the staggered insertion action between the sliding mechanism and the front mold, thus achieving the effect of advancing or retracting. However, this traditional method has several problems. First, the hydraulic cylinder needs to be used in conjunction with electronic limit switches to sense the forward and backward movement, which not only increases production cycle time but also raises production costs. Furthermore, the cost of purchasing the hydraulic cylinder and sensors is considerable, and the external actions of the hydraulic cylinder have strict sequential requirements; even slight errors can easily occur, increasing the error rate and posing a risk of mold failure. Utility Model Content

[0003] The purpose of this invention is to provide a structure for delayed retraction and early advance of a slide, which uses a slide lever to achieve the purpose of delayed retraction and early advance of the slide. Compared with the traditional method of using a hydraulic cylinder, it can save costs, simplify the production process, effectively shorten the production cycle time, and improve the overall production efficiency.

[0004] To achieve the above objectives, the following technical solution is adopted:

[0005] A sliding delay advance structure includes a first mounting base, a second mounting base arranged above the first mounting base, a rear mold core arranged within the first mounting base, and a front mold core arranged within the second mounting base and located on top of the rear mold core. A first groove is formed at one top end of the first mounting base, and a sliding seat is movably arranged within the first groove. A sliding insert is connected to one end of the sliding seat near the rear mold core, and a sliding pin is installed within the sliding insert. The sliding pin extends outward from the end of the sliding insert near the rear mold core. A first insertion hole is formed at the top of the sliding seat, extending to its bottom. The upper part of the first insertion hole is close to one side of the sliding insert. The inner wall of the first insertion hole is inclined upward towards the sliding insert, and the inner wall of the upper part away from the sliding insert is vertically oriented; the inner wall of the lower part of the first insertion hole away from the sliding insert is inclined downward towards the sliding insert, and the inner wall of the lower part of the first insertion hole near the sliding insert is vertically oriented; a sliding block is also installed in the second mounting base; the upper part of the sliding block is arranged vertically, and the lower part of the sliding block is inclined downward towards the sliding insert; a first slot is also provided at the bottom of the first slide groove corresponding to the sliding base; the sliding block is movably inserted into the first slot after passing through the first insertion hole.

[0006] Furthermore, a support bar is arranged at each of the bottom ends of the first slide groove along its length, and each support bar forms an installation groove with the inner wall of one side of the first slide groove; a guide seat is installed in each installation groove, and a guide notch is opened at the lower part of the opposite side of the two guide seats along their length; a guide slide groove is formed between the top of the support bar and the side wall and the top inner wall of the guide notch; a guide block extends outward from the lower part of each side of the sliding seat, and each guide block is movably inserted into a guide slide groove.

[0007] Furthermore, a pad is provided at the bottom of the first chute, and the pad is located between the two support bars; the sliding seat is arranged on the pad; a first through hole is also provided on the pad corresponding to the first insertion hole.

[0008] Furthermore, the first mounting base has a U-shaped first mounting hole in the middle, and the second mounting base has a second mounting hole corresponding to the first mounting hole; the rear mold core and the front mold core are respectively arranged in the first mounting hole and the second mounting hole; one end of the first slide groove extends into the first mounting hole.

[0009] Furthermore, a receiving groove is provided on the side of the rear mold core near the slide insert, and the slide insert is movably inserted into the receiving groove.

[0010] Furthermore, a front mold insert is also installed on the front mold core.

[0011] By adopting the above solution, the beneficial effects of this utility model are:

[0012] This invention uses a sliding block to achieve delayed retraction and early advance of the sliding position. Compared with the traditional method of using a hydraulic cylinder, it can save costs, simplify the production process, effectively shorten the production cycle time, and improve the overall production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A structural diagram omitting some structural elements;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] The following are explanations of the labels in the attached diagram:

[0017] 1. First mounting base; 2. Second mounting base; 3. Slide seat; 11. Rear mold core; 12. Support bar; 13. Guide groove; 14. Pad; 15. Guide seat; 21. Front mold core; 22. Front mold insert; 31. Slide insert; 32. Slide insert; 33. First insertion hole; 34. Slide pull block; 35. First slot; 36. Guide block. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Reference Figures 1 to 3 As shown, this utility model provides a structure for a sliding position with delayed retraction and advanced advance, including a first mounting base 1, a second mounting base 2 arranged above the first mounting base 1, a rear mold core 11 arranged in the first mounting base 1, and a front mold core 21 arranged in the second mounting base 2 and located on top of the rear mold core 11. In one embodiment, a first sliding groove is provided at one end of the top of the first mounting base 1, and a sliding seat 3 is movably arranged in the first sliding groove; a sliding insert 31 is connected to one end of the sliding seat 3 near the rear mold core 11, and a sliding pin 32 is installed in the sliding insert 31; the sliding pin 32 extends outward from the end of the sliding insert 31 near the rear mold core 11; a first insertion hole 33 is provided at the top of the sliding seat 3, extending to its bottom; the upper part of the first insertion hole 33 is close to the bottom of the sliding seat 3. One inner wall of the near-row insert 31 is inclined upward towards the row insert 31, and the upper part of the first insertion hole 33 is arranged vertically on the inner wall away from the row insert 31; the lower part of the first insertion hole 33 is inclined downward towards the direction away from the row insert 31, and the lower part of the first insertion hole 33 is arranged vertically on the inner wall near the row insert 31; a row puller 34 is also installed in the second mounting base 2; the upper part of the row puller 34 is arranged vertically, and the lower part of the row puller 34 is inclined downward towards the direction away from the row insert 31; a first slot 35 is also provided at the bottom of the first slide groove corresponding to the row seat 3; the row puller 34 is movably inserted into the first slot 35 after passing through the first insertion hole 33.

[0020] Continue to refer to Figures 1 to 3As shown, in this embodiment, the inclination angles of the upper and lower sides of the first insertion hole 33, and the inclination angle of the lower part of the sliding block 34 are basically consistent. The bottom of the second mounting base 2 has a mounting hole, and the sliding block 34 is installed in the mounting hole. Simultaneously, a front mold insert 22 is also installed on the front mold core 21. During operation, the sliding block 34 moves downwards. The middle part of the sliding block 34, i.e., the connection between the lower inclined surface and the upper part of the sliding block 34, exerts a leftward pushing force on the inner wall of the first insertion hole 33 near the sliding insert 31. This pushes the sliding base 3, causing the sliding insert 31 and the sliding insert 32 to move to the left, allowing the sliding insert 32 to be inserted into position earlier. Subsequently... When the front mold insert pin 22 is inserted into place, the slide advances ahead of schedule. When it retracts, the slide block 34 rises. Since the upper part of the slide block 34 is located inside the lower part of the first insertion hole 33 at this time, it does not exert a rightward pushing force on the side wall of the first insertion hole 33 during the rising process. Therefore, the slide seat 3 remains stationary until the front mold insert pin 22 is disengaged. At this time, the lower inclined surface of the slide block 34 and the connection between the upper part are disengaged from the lower part of the first insertion hole 33. Then it continues to rise. The lower inclined surface of the slide block 34 will exert a rightward pushing force on the lower inclined inner wall of the first insertion hole 33, thereby pushing the slide seat 3 to move the slide insert 31 and the slide insert pin 32 to the right, thus achieving the purpose of delayed retraction.

[0021] Preferably, to ensure the smooth movement of the sliding seat 3 and to guide its movement, in this embodiment, a support strip 12 is arranged at each end of the bottom of the first slide groove along the length of the first slide groove, and each support strip 12 forms an installation groove with one side inner wall of the first slide groove; a guide seat 15 is installed in each installation groove, and a guide notch is opened at the lower part of the opposite side of the two guide seats 15 along its length; the top of the support strip 12 forms a guide slide groove 13 with the side wall of the guide notch and the top inner wall of the guide notch; a guide block 36 extends outward from the lower part of each side of the sliding seat 3, and each guide block 36 is movably inserted into a guide slide groove 13; a pad 14 is also provided at the bottom of the first slide groove, and the pad 14 is located between the two support strips 12; the sliding seat 3 is arranged on the pad 14; a first through hole is also opened on the pad 14 corresponding to the first insertion hole 33, and the sliding pull block 34 is arranged through the first through hole.

[0022] Preferably, to improve the compactness of the structure, in this embodiment, the first mounting base 1 has a first mounting hole with a U-shaped structure in the middle, and the second mounting base 2 also has a second mounting hole corresponding to the first mounting hole; the rear mold core 11 and the front mold core 21 are respectively arranged in the first mounting hole and the second mounting hole; one end of the first slide groove extends into the first mounting hole; the rear mold core 11 also has a receiving groove on the side near the sliding insert 31, and the sliding insert 31 is movably inserted into the receiving groove.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A structure for delayed retraction and advanced advance of a sliding position, comprising a first mounting base, a second mounting base arranged above the first mounting base, a rear mold core arranged within the first mounting base, and a front mold core arranged within the second mounting base and located on top of the rear mold core, characterized in that, The first mounting base has a first groove at one top end, and a sliding seat is movably arranged in the first groove; a sliding insert is connected to the end of the sliding seat near the rear mold core, and a sliding pin is installed in the sliding insert; the sliding pin extends outward from the end of the sliding insert near the rear mold core; a first insertion hole is formed at the top of the sliding seat, extending to its bottom; the upper part of the inner wall of the first insertion hole near the sliding insert is inclined upward towards the sliding insert, and the upper part of the inner wall away from the sliding insert is vertically inclined upward. The first insertion hole is arranged in a vertical direction; the inner wall of the lower part of the first insertion hole away from the sliding insert is inclined downward in the direction away from the sliding insert, and the inner wall of the lower part of the first insertion hole near the sliding insert is arranged in a vertical direction; a sliding block is also installed in the second mounting base; the upper part of the sliding block is arranged in a vertical direction, and the lower part of the sliding block is inclined downward in the direction away from the sliding insert; a first slot is also opened at the bottom of the first slide groove corresponding to the sliding base; the sliding block is movably inserted into the first slot after passing through the first insertion hole.

2. The row position delay back-forward advance structure according to claim 1, characterized in that, A support bar is arranged at each of the bottom ends of the first slide groove along its length. Each support bar and one inner wall of the first slide groove form an installation groove. A guide seat is installed in each installation groove, and a guide notch is opened at the lower part of the opposite side of each guide seat along its length. A guide slide groove is formed between the top of the support bar and the side wall and the top inner wall of the guide notch. A guide block extends outward from the lower part of each side of the sliding seat, and each guide block is movably inserted into a guide slide groove.

3. The row position delay back-forward advance structure according to claim 2, characterized in that, The bottom of the first chute is also provided with a pad, and the pad is located between the two support bars; the position seat is arranged on the pad; a first through hole is also provided on the pad corresponding to the first insertion hole.

4. The row position delay back-forward advance structure according to claim 1, characterized in that, The first mounting base has a U-shaped first mounting hole in the middle, and the second mounting base has a second mounting hole corresponding to the first mounting hole; the rear mold core and the front mold core are respectively arranged in the first mounting hole and the second mounting hole; one end of the first slide groove extends into the first mounting hole.

5. The row position delay back-forward advance structure according to claim 4, characterized in that, The rear mold core is also provided with a receiving groove on the side near the slide insert, and the slide insert is movably inserted into the receiving groove.

6. The row position delay back-forward advance structure according to claim 1, characterized in that, The front mold core is also equipped with a front mold insert.

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