Pitched roof mechanism and injection mold

Abstract

The utility model discloses a pitched roof mechanism and an injection mold, the pitched roof mechanism comprises a mandril, a guide pipe, a sliding seat and a pitched roof seat, one end of the mandril is rotatably connected with the sliding seat, the sliding seat is slidably connected with the pitched roof seat, and the guide pipe is sleeved at the middle position of the mandril; wherein a rotating head is arranged at one end, rotationally connected with the sliding seat, of the ejector rod, the outer surface of the rotating head is an arc surface, a rotating groove is formed in the upper end of the sliding seat, the rotating groove sequentially comprises an inclined surface part and an arc part which are connected with each other from top to bottom, the inclined surface part obliquely extends towards the outer side from the arc part, and the rotating head is rotationally arranged on the arc part of the rotating groove. According to the utility model, the guide block is arranged in the middle of the ejector rod, so that jamming or damage (such as bending) is avoided. On the basis, the sliding seat is arranged at one end of the bottom of the ejector rod, and the sliding seat is rotationally connected with one end of the ejector rod, so that the ejector rod can flexibly change the direction, jamming is avoided, and the service life of the inclined ejector structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an inclined ejector mechanism and an injection mold. Background Art

[0002] With the development of industry, injection molds play a crucial role in the manufacturing process of various products. An inclined ejector mechanism is provided in the injection mold. The inclined ejector mechanism is a structure used to realize the internal undercut of the molded product in the design of the injection mold, and is widely used in the fields of injection molds such as automobiles, household appliances, and medical treatment.

[0003] However, due to the relatively long length of the traditional ejector rod itself, during the mold opening and ejecting process, the force at its connection is concentrated, which easily causes the ejector rod to bend or even break, thereby reducing the service life of the inclined ejector mechanism and the injection mold, and increasing the production cost. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: to provide an inclined ejector mechanism to solve the problem that the ejector rod in the traditional inclined ejector mechanism is prone to bending deformation or even breaking.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is:

[0006] An inclined ejector mechanism, which includes: an ejector rod, a guide tube, a sliding seat, and an inclined ejector seat. One end of the ejector rod is rotatably connected to the sliding seat. The sliding seat is slidably connected to the inclined ejector seat. The guide tube is sleeved at the middle position of the ejector rod. Wherein, a rotating head is provided at one end of the ejector rod that is rotatably connected to the sliding seat. The outer surface of the rotating head is an arc surface. A rotating groove is provided at the upper end of the sliding seat. The rotating groove sequentially includes an inclined surface portion and an arc portion connected to each other from top to bottom. The inclined surface portion extends obliquely outward from the arc portion. The rotating head is rotatably arranged in the arc portion of the rotating groove.

[0007] Further, in the inclined ejector mechanism of the utility model, an inclined portion connected to the rotating head is provided at the lower end of the ejector rod. The cross-sectional area of the inclined portion gradually decreases from top to bottom along the extending direction of the ejector rod. A rotating gap is provided between the inclined portion and the inclined surface portion.

[0008] Further, in the inclined ejector mechanism of the utility model, a sliding groove with an upward opening is provided on the inclined ejector seat. The sliding seat is slidably arranged in the sliding groove.

[0009] Further, in the inclined ejector mechanism of the utility model, the sliding groove is a T-shaped groove, and the sliding seat is a T-shaped convex block.

[0010] Further, in the inclined ejector mechanism of the utility model, mounting holes are provided at the bottom of the inclined ejector seat.

[0011] Further, in the lifter mechanism of the present utility model, the extending direction of the ejector rod forms an angle α with the vertical height direction, and the value range of the angle α is: 8° ≤ α ≤ 12°.

[0012] Further, in the lifter mechanism of the present utility model, it further includes a lifter head, and the lifter head is arranged at one end of the ejector rod away from the sliding seat.

[0013] Further, in the lifter mechanism of the present utility model, the lifter head and the ejector rod are in a T shape.

[0014] Further, in the lifter mechanism of the present utility model, a through hole for the ejector rod to pass through is provided at the middle position of the guide tube, and one or more screw holes for fixing bolts to pass through are further provided on the guide tube.

[0015] The present utility model further provides an injection mold, which includes the lifter mechanism as described above, and the lifter mechanism is arranged in the injection mold.

[0016] The beneficial effects of the present utility model are as follows: In the present utility model, a guide block is arranged in the middle of the ejector rod, and the guide block can be fixed on components such as the rear template, so that the guide block can play a role in tube positioning, that is, ensure the precise position of the lifter structure in the injection mold, prevent the lifter structure from shifting or misaligning during the movement process, and enable the lifter structure to move along a predetermined path and angle. In addition, the guide block also plays a guiding role. When the ejector rod moves (such as ejecting or resetting) in the injection mold, the guide block can ensure that the ejector rod is sufficiently supported and guided during the movement process, avoiding jamming or damage (such as bending) caused by uneven force or excessive pressure. In addition, in the present utility model, a sliding seat is arranged at one end of the bottom of the ejector rod, and a rotating groove is arranged on the sliding seat. The rotating groove sequentially includes an inclined surface part and an arc part connected to each other from top to bottom. The inclined surface part extends obliquely outward from the arc part, and the arc part makes the lower half part of the rotating groove a circular groove or a cylindrical groove. On this basis, one end of the ejector rod is adapted to the shape of the sliding seat, that is, a rotating head with a corresponding shape is arranged, and the outer surface of the rotating head is an arc surface (that is, set as a corresponding round head / cylindrical head), and the rotating head is rotatably arranged in the arc part of the rotating groove, so as to realize the rotational connection between the ejector rod and the sliding seat, so that the ejector rod is more flexible during the movement process, can realize flexible direction change, thus avoiding jamming phenomena, improving the service life of the lifter structure, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the lifter mechanism of the present utility model in an embodiment;

[0018] Figure 2 isFigure 1 Schematic cross-sectional view of the inclined ejector mechanism shown

[0019] Figure 3 This is a schematic cross-sectional view of the injection mold according to the present utility model in an embodiment

[0020] Label description:

[0021] 1. Ejector rod; 11. Rotating head; 12. Inclined part

[0022] 2. Guide tube

[0023] 3. Sliding seat; 31. Inclined surface part; 32. Arc part

[0024] 4. Inclined ejector seat; 41. Sliding groove; 42. Mounting hole

[0025] 5. Inclined ejector head Specific implementation mode

[0026] To describe in detail the technical content, achieved purpose and effect of the present utility model, the following is described in conjunction with the implementation mode and with reference to the drawings

[0027] Please refer to Figures 1 to 3 , the present utility model designs an inclined ejector mechanism, which includes: an ejector rod 1, a guide tube 2, a sliding seat 3 and an inclined ejector seat 4. One end of the ejector rod 1 is rotatably connected to the sliding seat 3. The sliding seat 3 is slidably connected to the inclined ejector seat 4. The guide tube 2 is sleeved at the middle position of the ejector rod 1. Among them, a rotating head 11 is provided at one end of the ejector rod 1 that is rotatably connected to the sliding seat 3. The outer surface of the rotating head 11 is an arc surface. A rotating groove is provided at the upper end of the sliding seat 3. The rotating groove sequentially includes an inclined surface part 31 and an arc part 32 connected to each other from top to bottom. The inclined surface part 31 extends obliquely outward from the arc part 32. The rotating head 11 is rotatably arranged in the arc part 32 of the rotating groove

[0028] The mechanism principle / working principle of the present utility model is briefly described as follows: When the force is relatively large, the middle of the ejector rod 1 may bend and deform. The present utility model provides a guide block in the middle of the ejector rod 1. The guide block can be fixed on components such as the rear template, so that the guide block can play a role in positioning, that is, ensuring the precise position of the inclined ejector structure in the injection mold, preventing the inclined ejector structure from shifting or misaligning during the movement process, and enabling the inclined ejector structure to move along a predetermined path and angle. In addition, the guide block also plays a guiding role. When the ejector rod moves in the injection mold (such as ejection or reset), the guide block can ensure that the ejector rod is sufficiently supported and guided during the movement process, avoiding jamming or damage (such as bending) caused by uneven force or excessive pressure

[0029] In addition, when the inclination angle of the ejector rod 1 is relatively large (e.g., greater than 8 degrees), the frictional resistance generated by the lifter structure in the mold core is greater. In the present utility model, a sliding seat 3 is provided at one end of the bottom of the ejector rod 1, and a rotating groove is provided on the sliding seat 3. The rotating groove sequentially includes an inclined surface portion 31 and an arc portion 32 connected to each other from top to bottom. The inclined surface portion 31 extends obliquely outward from the arc portion 32, and the arc portion 32 makes the lower half of the rotating groove a circular groove or a cylindrical groove. On this basis, one end of the ejector rod 1 is adapted to the shape of the sliding seat 3, that is, a rotating head 11 with a corresponding shape is provided, and the outer surface of the rotating head 11 is an arc surface (i.e., set as a corresponding round head / cylindrical head). The rotating head 11 is rotatably arranged in the arc portion 32 of the rotating groove, so as to realize the rotational connection between the ejector rod 1 and the sliding seat 3, making the ejector rod 1 more flexible during the movement process, enabling flexible direction change, thus avoiding jamming phenomena, improving the service life of the lifter structure, and reducing costs.

[0030] Further, in the lifter mechanism of the present utility model, an inclined portion 12 connected to the rotating head 11 is provided at the lower end of the ejector rod 1. The cross-sectional area of the inclined portion 12 gradually decreases from top to bottom along the extension direction of the ejector rod 1, and a rotating gap is provided between the inclined portion 12 and the inclined surface portion 31.

[0031] In the above technical solution of the present utility model, the lower end portion of the ejector rod 1 gradually shrinks to form an inclined portion 12 connected to the rotating head 11. A rotating gap for the inclined rod to rotate and adjust the direction is left between the inclined portion 12 and the inclined surface portion 31, facilitating the automatic adjustment of the appropriate ejection angle of the ejector rod 1 to make the force balanced. On the other hand, this rotating gap can also limit the rotation angle of the ejector rod 1.

[0032] Further, in the lifter mechanism of the present utility model, a sliding groove 41 with an upward opening is provided on the lifter seat 4, and the sliding seat 3 is slidably arranged in the sliding groove 41.

[0033] Further, in the lifter mechanism of the present utility model, the sliding groove 41 is a T-shaped groove, and the sliding seat 3 is a T-shaped protrusion.

[0034] In practical applications, the cross-section of the sliding groove 41 is a T-shaped groove with an inverted T shape, and the sliding seat 3 is also a T-shaped protrusion with an inverted T shape. By setting the sliding groove 41 as a T-shaped groove and correspondingly setting the sliding seat 3 as a T-shaped protrusion, the present utility model can effectively make the above-mentioned sliding seat 3 (i.e., the T-shaped protrusion) slide in the sliding groove 41 (T-shaped groove).

[0035] Further, in the lifter mechanism of the present utility model, an installation hole 42 is provided at the bottom of the lifter seat 4.

[0036] In practical applications, the angled ejector base 4 is arranged on the square iron. To fix the two together, mounting holes 42 can be provided at the bottom of the angled ejector base 4 and screw holes are also provided on the square iron. Screws are passed through the screw holes of the square iron and inserted into the mounting holes 42 of the angled ejector base 4, so as to fix the square iron and the angled ejector base together.

[0037] Further, in the angled ejector mechanism of the present utility model, the extending direction of the ejector rod has an angle α with the vertical height direction, and the value range of the angle α is: 8° ≤ α ≤ 12°.

[0038] In actual use, components such as the sliding seat 3 are provided when the angle between the extending direction of the ejector rod 1 and the vertical height direction is within a preset range to save costs. For example, when it is less than 8°, the sliding seat and the like can be not used to save costs.

[0039] Further, in the angled ejector mechanism of the present utility model, an angled ejector head 5 is further included, and the angled ejector head 5 is arranged at one end of the ejector rod 1 away from the sliding seat 3.

[0040] Further, in the angled ejector mechanism of the present utility model, the angled ejector head 5 and the ejector rod 1 are in a T shape.

[0041] In the above technical solution of the present utility model, the angled ejector head 5 is fixedly connected to one end of the ejector rod 1. It should be noted that the shape and size of the above angled ejector head 5 can be selected according to actual situations. For example, the angled ejector head 5 and the ejector rod 1 can be in a T shape, and no limitation is made here.

[0042] Further, in the angled ejector mechanism of the present utility model, a through hole for the ejector rod 1 to pass through is provided at the middle position of the guide tube 2, and one or more screw holes for fixing bolts to pass through are further provided on the guide tube 2.

[0043] In the above technical solution of the present utility model, a through hole for the ejector rod 1 to pass through is provided at the middle position of the guide tube 2 so as to sleeved the guide tube 2 on the ejector rod 1. In addition, one or more screw holes for fixing bolts to pass through are further provided on the guide tube 2 of the present utility model to fix the guide tube 2 on corresponding components (such as the rear template). It should be noted that the position of the screw hole can be set according to actual situations.

[0044] The present utility model further provides an injection mold, which includes the angled ejector mechanism as described above, and the angled ejector mechanism is arranged in the injection mold.

[0045] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is: an angled ejector mechanism, which is used in an injection mold, such as Figure 1As shown, the lifter mechanism successively includes a lifter head 5, a push rod 1, a guide tube 2, a sliding seat 3, and a lifter base 4 from top to bottom. The following will introduce the above components in combination with Figures 1 to 3 Specifically introduce the above components.

[0046] In this embodiment, the above lifter head 5 is fixedly connected to one end of the push rod 1. The shape of the above push rod 1 is similar to a long rectangular rod, and the push rod 1 has a certain inclination angle. A guide tube 2 is sleeved at the middle position of the push rod 1. The guide tube 2 can be a bronze guide tube 2. The shape of the guide tube 2 is a cuboid. It should be noted that the shape and size of the guide tube 2 can be selected according to the actual situation and are not limited here. A through hole for the push rod 1 to pass through is provided at the middle position of the guide tube 2. Two screw holes for fixing bolts to pass through are also provided on the guide tube 2. The two screw holes are symmetrically located on both sides of the lifter rod with the lifter rod as the axis. The guide tube 2 can be fixed to the rear template through the two screw holes and the corresponding bolts.

[0047] In this embodiment, an installation hole 42 is provided at the bottom of the above lifter base 4. The installation hole 42 is for a bolt to pass through to fix the lifter base 4 on the square iron. An upward-opening sliding groove 41 is provided on the lifter base 4. The sliding groove 41 is an inverted T-shaped groove. The above sliding seat 3 is an inverted T-shaped convex block and is slidably arranged in the sliding groove 41 (i.e., the T-shaped groove). The sliding seat 3 includes two mutually perpendicular connecting plates. A rotating groove is provided on the connecting plate extending along the vertical height direction (i.e., the middle protruding part of the T-shaped convex block). The rotating groove successively includes an inclined surface part 31 and an arc part 32 connected to each other from top to bottom. The cross-section of the arc part 32 parallel to the vertical height direction is similar to a circle / arc shape, so that the shape of the groove formed by the arc part 32 is similar to a cylindrical shape. The cross-section of the above inclined surface part 31 in the direction perpendicular to the vertical height direction gradually increases upward along the vertical height direction, that is, the cross-sectional area of the rotating groove gradually increases as it approaches the groove opening, that is, the inclined surface part 31 extends obliquely outward from the arc part 32. Correspondingly, a rotating head 11 is provided at one end of the above push rod 1 that is rotatably connected to the sliding seat 3. The outer surface of the rotating head 11 is an arc surface. The overall shape of the rotating head 11 is similar to a cylindrical shape, and the size of the groove formed by the rotating head 11 and the arc part 32 is adapted. The rotating head 11 is rotatably arranged in the groove formed by the arc part 32. In addition, an inclined part 12 connected to the rotating head 11 is provided at the lower end of the push rod 1. The cross-sectional area of the inclined part 12 gradually decreases from top to bottom along the extending direction of the push rod 1. A rotating gap is provided between the inclined part 12 and the inclined surface part 31.

[0048] In summary, the inclined top mechanism provided by the utility model: by setting the rotating groove as a circular groove, and setting the rotating part of the top rod 1 as a circular head with a matching shape and size, the top rod 1 is rotatably connected to the sliding seat 3, so that the top rod 1 can achieve flexible change of direction during the movement, thereby avoiding the phenomenon of jamming and improving the service life of the inclined top structure. The utility model sets a guide block in the middle of the top rod 1. Since the guide block can play the role of pipe positioning, it ensures the precise position of the inclined top in the injection mold, prevents the inclined top from being offset or misplaced during the movement, and enables the inclined top structure to move according to a predetermined path and angle. In addition, the guide block also plays a guiding role. When the inclined top moves in the injection mold (such as ejection or resetting), the guide block can ensure that the inclined top is sufficiently supported and guided during the movement, avoiding jamming or damage (such as bending) caused by uneven force or poor movement. On the other hand, the inclined top seat 4 of the utility model is provided with a sliding groove 41 opening upward, and the sliding seat 3 is slidably arranged in the sliding groove 41, which can effectively make the above-mentioned sliding seat 3 (ie, T-shaped protrusion) slide in the sliding groove 41 (T-shaped groove).

[0049] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A tilting mechanism, characterized in that: include: A push rod, a guide tube, a sliding seat and an inclined push seat, one end of the push rod is rotatably connected to the sliding seat, the sliding seat is slidably connected to the inclined push seat, and the guide tube is sleeved at the middle position of the push rod; wherein, the push rod is provided with a rotating head at one end rotatably connected to the sliding seat, the outer surface of the rotating head is an arc surface, and the upper end of the sliding seat is provided with a rotating groove, the rotating groove comprises an inclined portion and an arc portion connected to each other from top to bottom, the inclined portion extends obliquely toward the outside from the arc portion, and the rotating head is rotatably arranged in the arc portion of the rotating groove.

2. The tilting mechanism according to claim 1, characterized in that: The lower end of the push rod is provided with an inclined portion connected to the rotating head, the cross-sectional area of ​​the inclined portion gradually decreases from top to bottom along the extension direction of the push rod, and a rotation gap is provided between the inclined portion and the slope portion.

3. The tilting mechanism according to claim 1, characterized in that: The inclined top seat is provided with a sliding groove opening upward, and the sliding seat is slidably arranged in the sliding groove.

4. The tilting mechanism according to claim 3, characterized in that: The sliding groove is a T-shaped groove, and the sliding seat is a T-shaped protrusion.

5. The tilting mechanism according to claim 1, characterized in that: A mounting hole is provided at the bottom of the inclined top seat.

6. The tilting mechanism according to claim 1, characterized in that: An included angle α is formed between the extension direction of the top rod and the vertical height direction, and the value range of the included angle α is: 8°≤α≤12°.

7. The tilting mechanism according to claim 1, characterized in that: It also includes an inclined ejector head, which is arranged at an end of the ejector rod away from the sliding seat.

8. The tilting mechanism according to claim 7, characterized in that: The inclined ejector head and the ejector rod are in a T shape.

9. The tilting mechanism according to claim 1, characterized in that: A through hole for the push rod to pass through is provided at the middle position of the guide tube, and one or more screw holes for the fixing bolts to pass through are also provided on the guide tube.

10. An injection mold, characterized in that: It comprises the tilting lift mechanism as described in any one of claims 1 to 9, and the tilting lift mechanism is arranged in the injection mold.

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