Double-inclination pitched roof mechanism of mold

Abstract

The utility model relates to the technical field of injection molds, in particular to a mold double-inclination pitched roof mechanism which comprises a mold core, a plurality of groups of open holes are formed in the mold core, inclined rods are inserted into the plurality of groups of open holes and comprise top heads and bottom rods, the bottom rods are fixedly mounted at the bottom ends of the top heads, arc edge blocks are fixedly mounted on one sides of the top heads, and the open holes comprise guide grooves. A clamping groove and a cylindrical groove are formed in the bottom of the guide groove, a first slope and a second slope are arranged on one side of the guide groove, and the inclination angle of the first slope is smaller than that of the second slope. When the inclined rod needs to be ejected out during demolding, firstly, the supporting rod is in upward contact with the ejection head to move, so that the stress direction of the inclined rod is upward, friction between the inclined rod and the mold core ejection is avoided, then the inclined rod is pushed out along the clamping groove through the bottom rod, movement in the path direction is guaranteed, and then the inclined rod is ejected out by reducing the angle of a sealing opening part of the inclined top through the angle difference between the inclined surface I and the inclined surface II in the guide groove. A distance is generated between the guide groove in the opening and the inclined rod, and burrs are prevented from being generated.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a double-slope inclined ejector mechanism for a mold. Background Art

[0002] The mold lift mechanism is used to manufacture parts or products of specific shapes. The lift can add an inclination angle or bevel on one or more sides of the mold to facilitate the demoulding or molding of the product when the mold is opened and closed. This design helps to reduce friction between the product and the mold, making it easier for the product to be released from the mold, while also improving production efficiency.

[0003] In the prior art, the patent with announcement number CN206242434U discloses a mold tilting mechanism, including a tilting top, a base, a guide block, a rolling member and a connecting member. The tilting top includes a connecting hole, the rolling member includes a rolling hole, the connecting member passes through the rolling hole and the connecting hole, the base abuts against the tilting top, the tilting top passes through the guide block, and the rolling member is located in the base.

[0004] The above structure uses the guide hole to limit the inclined top to move along the same path, reducing friction. However, when the inclined top is ejected, it will produce friction with the mold core top, the sealing surface of the inclined top is easily damaged, and the mold core top is prone to burring, which cannot meet the needs of products with high sealing requirements. Utility Model Content

[0005] In view of this, the purpose of the present invention is to propose a double-slope inclined ejector mechanism for a mold to solve the problem that when the inclined ejector is ejected, the inclined ejector will generate friction with the mold core top, the sealing surface of the inclined ejector is easily damaged, and the mold core top is prone to flashing.

[0006] Based on the above purpose, the utility model provides a double-slope inclined ejector mechanism for a mold, comprising a mold core, wherein a plurality of groups of openings are provided inside the mold core, and inclined rods are inserted into the plurality of groups of openings;

[0007] The oblique rod includes a top head and a bottom rod, the bottom rod is fixedly mounted on the bottom end of the top head, and an arc edge block is fixedly mounted on one side of the top head;

[0008] The opening includes a guide groove provided inside the opening, a clamping groove and a cylindrical groove are provided at the bottom of the guide groove, the clamping groove and the cylindrical groove are both connected to the guide groove, a support rod is passed through the cylindrical groove, and a pad corresponding to the arc edge block is fixedly installed on the top of the support rod;

[0009] A first inclined surface and a second inclined surface are provided on one side of the guide groove, and the inclination angle of the first inclined surface is smaller than the inclination angle of the second inclined surface.

[0010] Preferably, the clamping slot is inclined with respect to the bottom of the guide slot, and the inclination angle of the second inclined surface is the same as the inclination angle of the clamping slot.

[0011] Preferably, the bottom of the cushion block is provided with rounded corners, and the cushion block and the support rod are an integrated molding structure.

[0012] Preferably, the plug is arranged in an L-shaped structure, and one side of the plug is provided with inclined surfaces corresponding to inclined surface 1 and inclined surface 2.

[0013] Preferably, the guide groove and the cylindrical groove are vertically arranged, and the arc edge block conflicts with the outside of the support rod.

[0014] Preferably, the top head and the bottom rod are an integrated structure, the top head matches the guide groove, and the bottom rod matches the clamping slot.

[0015] The beneficial effects of the utility model are as follows: when the demoulding and ejecting of the inclined rod is required, the supporting rod is first moved upward to contact the ejecting head, so that the force direction of the inclined rod is upward, thereby avoiding friction between the inclined rod and the top of the mold core, and then the bottom rod is pushed out along the slot to ensure movement along the path direction;

[0016] Then, by utilizing the angle difference between the first and second bevels in the guide groove and reducing the angle of the inclined top sealing mouth, a distance is created between the guide groove in the opening and the inclined rod, thereby avoiding friction between the inclined rod and the top sealing surface of the mold core during movement, preventing the generation of flash, and achieving the requirement of protecting the inclined rod and the sealing surface of the mold core. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the oblique rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the top view of the mold core of the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the side section structure of AA;

[0022] Figure 5 For this utility model Figure 4Schematic diagram of the enlarged structure at point B in the middle.

[0023] The markings in the figure are: 1. mold core; 2. opening; 3. inclined rod; 4. top head; 5. bottom rod; 6. arc edge block; 7. guide groove; 8. slot; 9. inclined surface 1; 10. inclined surface 2; 11. cylindrical groove; 12. support rod; 13. spacer. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0025] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a double-slope inclined ejector mechanism for a mold includes a mold core 1, a plurality of groups of openings 2 are formed inside the mold core 1, and inclined rods 3 are inserted into the plurality of groups of openings 2;

[0026] The oblique rod 3 includes a top head 4 and a bottom rod 5. The bottom rod 5 is fixedly mounted on the bottom end of the top head 4. An arc edge block 6 is fixedly mounted on one side of the top head 4.

[0027] The opening 2 includes a guide groove 7 provided inside the opening 2. A clamping groove 8 and a cylindrical groove 11 are provided at the bottom of the guide groove 7. The clamping groove 8 and the cylindrical groove 11 are both connected to the guide groove 7. A support rod 12 runs through the cylindrical groove 11. A pad 13 corresponding to the arc edge block 6 is fixedly installed on the top of the support rod 12.

[0028] One side of the guide groove 7 is provided with an inclined surface 1 9 and an inclined surface 2 10 , and the inclination angle of the inclined surface 1 9 is smaller than the inclination angle of the inclined surface 2 10 .

[0029] In this embodiment, when the oblique rod 3 is inserted into the opening 2, the support rod 12 and the cushion block 13 are first inserted into the cylindrical groove 11, and then the bottom rod 5 is inserted into the card slot 8. In the process of the plug 4 entering the guide groove 7, the support rod 12 is lifted up, so that the arc edge block 6 on one side of the plug 4 is engaged with the support rod 12. When the oblique rod 3 needs to be demoulded and ejected, the support rod 12 is first moved upward to contact the plug 4, so that the force direction of the oblique rod 3 is upward, avoiding friction between the oblique rod 3 and the top of the mold core 1, and then the bottom rod 5 is pushed out along the card slot 8 to ensure movement along the path direction;

[0030] By utilizing the angle difference between the inclined surface 1 9 and the inclined surface 2 10 in the guide groove 7 and reducing the angle of the inclined top sealing mouth, a distance is created between the guide groove 7 in the opening 2 and the inclined rod 3, thereby avoiding friction between the inclined rod 3 and the top sealing surface of the mold core 1 during movement, preventing the generation of flash, and achieving the requirement of protecting the inclined rod 3 and the sealing surface of the mold core 1.

[0031] As an implementation method, Figure 2 and Figure 4 As shown, the clamping slot 8 is inclined with respect to the bottom of the guide slot 7 , and the inclination angle of the second inclined surface 10 is the same as that of the clamping slot 8 .

[0032] In this embodiment, the second inclined surface 10 has the same inclination angle as the slot 8 , so when the inclined rod 3 moves downward or upward, the bottom rod 5 and the top head 4 move more smoothly.

[0033] As an implementation method, Figure 4 and Figure 5 As shown, the bottom of the pad 13 is chamfered, and the pad 13 and the support rod 12 are an integrated structure.

[0034] In this embodiment, the pad block 13 is rounded. When the demolding and ejecting of the diagonal rod 3 is required, the support rod 12 is first moved upward to contact the head 4. After the head 4 is disengaged from the guide groove 7, the support rod 12 is pulled downward to disengage from the arc edge block 6, and then the bottom rod 5 is pushed upward.

[0035] The guide groove 7 and the cylindrical groove 11 are vertically arranged, and the arc edge block 6 contacts the outer portion of the support rod 12 .

[0036] As an implementation method, Figure 1 、 Figure 2 and Figure 4 As shown, the plug 4 is arranged in an L-shaped structure, and one side of the plug 4 is provided with inclined surfaces corresponding to the inclined surface 1 9 and the inclined surface 2 10 respectively.

[0037] In this embodiment, when the bottom rod 5 is inserted into the slot 8, the plug 4 fits one side of the plug 4 with the inclined surface 1 9 and the inclined surface 2 10 during the process of entering the guide groove 7. When the plug 4 is ejected, the angle difference between the inclined surface 1 9 and the inclined surface 2 10 avoids friction between the inclined rod 3 and the mold core 1.

[0038] As an implementation method, Figure 1 、 Figure 2 and Figure 3 As shown, the top head 4 and the bottom rod 5 are an integrated structure, the top head 4 matches the guide groove 7, and the bottom rod 5 matches the clamping groove 8.

[0039] In this embodiment, after the oblique rod 3 enters the opening 2, the top head 4 and the bottom rod 5 enter the guide groove 7 and the clamping groove 8 respectively to complete the clamping.

[0040] Working principle: When in use, when the inclined rod 3 is inserted into the opening 2, the support rod 12 and the cushion block 13 are first inserted into the cylindrical groove 11, and then the bottom rod 5 is inserted into the card slot 8. When the head 4 enters the guide groove 7, it lifts up the support rod 12 so that the arc block 6 on one side of the head 4 can engage the support rod 12. When it is necessary to demould and eject the inclined rod 3, the support rod 12 is first moved upward to contact the head 4 so that the force direction of the inclined rod 3 is upward to avoid friction between the inclined rod 3 and the top of the mold core 1. After moving until the head 4 is disengaged from the guide groove 7, the support rod 12 is pulled downward to disengage the arc block 6, and then pushed out along the card slot 8 through the bottom rod 5 to ensure movement along the path direction.

[0041] During the process, the angle difference between the inclined surface 1 9 and the inclined surface 2 10 in the guide groove 7 is utilized to reduce the angle of the inclined top sealing mouth, so that a distance is created between the guide groove 7 in the opening 2 and the inclined rod 3, thereby avoiding friction between the inclined rod 3 and the top sealing surface of the mold core 1 during movement, thereby achieving the requirement of protecting the inclined rod 3 and the sealing surface of the mold core 1.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0043] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A double-slope inclined ejector mechanism for a mold, comprising a mold core (1), characterized in that: The mold core (1) has multiple groups of openings (2) formed inside, and inclined rods (3) are inserted into the multiple groups of openings (2); The oblique rod (3) comprises a top head (4) and a bottom rod (5), wherein the bottom rod (5) is fixedly mounted on the bottom end of the top head (4), and an arc edge block (6) is fixedly mounted on one side of the top head (4); The opening (2) includes a guide groove (7) provided inside the opening (2); a clamping groove (8) and a cylindrical groove (11) are provided at the bottom of the guide groove (7); the clamping groove (8) and the cylindrical groove (11) are both communicated with the guide groove (7); a support rod (12) is passed through the inside of the cylindrical groove (11); a pad (13) corresponding to the arc edge block (6) is fixedly installed on the top of the support rod (12); One side of the guide groove (7) is provided with an inclined surface 1 (9) and an inclined surface 2 (10), and the inclined surface 1 (9) has an inclination angle smaller than the inclined surface 2 (10).

2. A mold double-slope lift mechanism according to claim 1, characterized in that: The clamping slot (8) is arranged to be inclined with respect to the bottom of the guide slot (7), and the inclination angle of the second inclined surface (10) is the same as the inclination angle of the clamping slot (8).

3. The double-slope lift mechanism for mold according to claim 1, characterized in that: The bottom of the cushion block (13) is provided with a rounded corner, and the cushion block (13) and the support rod (12) are an integrated structure.

4. The double-slope lift mechanism for mold according to claim 1, characterized in that: The top head (4) is arranged in an L-shaped structure, and one side of the top head (4) is provided with inclined surfaces corresponding to inclined surface 1 (9) and inclined surface 2 (10).

5. The double-slope lift mechanism for mold according to claim 1, characterized in that: The guide groove (7) and the cylindrical groove (11) are arranged vertically, and the arc edge block (6) is in conflict with the outside of the support rod (12).

6. The double-slope lift mechanism for mold according to claim 1, characterized in that: The top head (4) and the bottom rod (5) are an integrated structure; the top head (4) matches the guide groove (7), and the bottom rod (5) matches the clamping groove (8).

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