Feeding mechanism for hemming die

Abstract

The present invention is a feeding mechanism for a hemming mold, comprising a first end feeding assembly, an intermediate feeding assembly, a second end feeding assembly and a bottom plate, wherein the intermediate feeding assembly is located between the first end feeding assembly and the second end feeding assembly, and the injection cavities of the first end feeding assembly, the intermediate feeding assembly and the second end feeding assembly are connected as a whole, and the first end feeding assembly, the intermediate feeding assembly and the second end feeding assembly are mounted on the bottom plate. The movement stroke of the strip in the injection cavity of the cavity part of the present invention is shortened, and the shortened movement stroke of the strip can reduce the friction between the strip and the cavity part, making it easier to feed the strip, and the feeding accuracy of the strip lip is higher; the first end feeding assembly and the intermediate feeding assembly (except the No. 10 cavity part) can be away from the strip feeding area, reducing the obstruction when the strip is fed, making the strip feeding easier, reducing the workload of the operator, and also improving the qualified rate of the product.

Description

Technical Field

[0001] The invention relates to the technical field of hemming moulds, and in particular to a feeding mechanism of an hemming mould. Background Art

[0002] The product processed by the hemming mold feeding mechanism is the hemming door and window seal with strips, which is completed by injection molding of the corner mold. The finished strip is wrapped with injection-molded rubber as a whole. During the feeding process, the surrounding area is all the core parts of the injection-molded rubber. When feeding, the inner steel frame of the strip needs to be inserted into the mold cavity part. Because the strip is in a closed environment, the conventional feeding mechanism is to separate all the core parts supporting the strip from the core parts that match it, and the distance moved outward is generally greater than the length of the strip to meet the space requirements for manual operation during feeding. Then the strip and its supporting parts are inserted back into the other cavity parts to ensure that each lip edge is correctly inserted into the corresponding cavity to reach the correct sealing position.

[0003] The disadvantages of this feeding method are that the movement stroke of the strip in the injection cavity of the cavity is long, and there is a pressing area for the strip on the cavity, the convex core cavity of the mold is in a closed environment, and there are cavity parts around it to cooperate with it. This results in obstacles on all sides when the strip is fed, resulting in a complex strip feeding mechanism and difficult operation. Manual feeding is laborious and increases the operator's workload. Oil cylinder feeding, due to the long movement trajectory, is prone to lip feeding misalignment. In this process, because the strip is long and has an arc, and there are two lips on the side of the strip that need to be correctly positioned, the operator needs to practice the feeding technique repeatedly, and be cautious and meticulous, as well as have a high intensity of labor intensity, in order to do a good job of strip feeding, which greatly increases the operator's load and the probability of defective finished products. Summary of the invention

[0004] The present invention aims to solve the deficiencies of the prior art and provides a feeding mechanism for an edge wrapping die.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a feeding mechanism of an edge-wrapping mold, comprising a first end feeding assembly, an intermediate feeding assembly, a second end feeding assembly and a bottom plate, wherein the intermediate feeding assembly is located between the first end feeding assembly and the second end feeding assembly, the injection cavities of the first end feeding assembly, the intermediate feeding assembly and the second end feeding assembly are connected as a whole, and the first end feeding assembly, the intermediate feeding assembly and the second end feeding assembly are mounted on the bottom plate;

[0006] The intermediate feeding assembly includes a No. 4 cavity part slidably connected to the top surface of the bottom plate and a No. 10 cavity part fixed on the bottom plate. The No. 4 cavity part slides along the width direction of the bottom plate. The No. 5 cavity part is installed on the No. 4 cavity part. The No. 6 cavity part is installed on the No. 5 cavity part. An injection cavity No. 1 is formed between the No. 4 cavity part, the No. 5 cavity part, the No. 6 cavity part and the No. 10 cavity part. The strip is located in the No. 1 injection cavity. The No. 4 cavity part, the No. 5 cavity part and the No. 6 cavity part are all connected to the external No. 1 power part. The No. 4 cavity part and the No. 5 cavity part are connected to the external No. 1 power part. The outer sides of the No. 6 cavity parts are fixedly connected to the No. 1 power part, the outer side of the No. 6 cavity part is hinged to the No. 1 power part, a lifting groove is provided on the top surface of the bottom plate, a jump block is installed on the No. 6 cavity part, the lower end of the jump block passes through the No. 5 cavity part and the No. 4 cavity part in turn and then extends into the lifting groove, a lifting slope is provided on the side of the jump block away from the No. 1 injection cavity, the inner wall of the lifting groove away from the No. 1 injection cavity is inclined and matched with the lifting slope, a reset groove matching the jump block is provided on the bottom plate, and the lifting groove is located between the reset groove and the strip.

[0007] The first end feeding assembly includes a cavity part No. 1 that is slidably connected to the top surface of the base plate, and the cavity part No. 1 slides along the length direction of the base plate. The cavity part No. 1 is installed on the cavity part No. 2, and the cavity part No. 3 is installed on the cavity part No. 2. The cavity parts No. 1, No. 2 and No. 3 are all connected to the external power part No. 2, and a No. 2 injection cavity is formed between the cavity parts No. 1, No. 2 and No. 3. One end of the strip is located in the injection cavity No. 2, and the injection cavity No. 2 is connected to the injection cavity No. 1.

[0008] The second end feeding assembly includes a No. 7 cavity piece connected to the top surface of the bottom plate, a No. 8 cavity piece is installed on the No. 7 cavity piece, a No. 9 cavity piece is installed on the No. 8 cavity piece, and a No. 3 injection molding cavity is formed between the No. 7 cavity piece, the No. 8 cavity piece and the No. 9 cavity piece. The other end of the strip is located in the No. 3 injection molding cavity, and the No. 3 injection molding cavity is connected to the No. 1 injection molding cavity.

[0009] The fifth cavity piece and the fourth cavity piece are both provided with through holes for the jumping block to pass through.

[0010] A No. 1 slide groove for sliding the No. 1 cavity part is arranged on the top surface of the bottom plate, and a No. 1 sliding block matching the No. 1 slide groove is arranged on the bottom surface of the No. 1 cavity part.

[0011] The top surface of the bottom plate is provided with a No. 2 slide groove for sliding the No. 4 cavity part, and the bottom surface of the No. 4 cavity part is provided with a No. 2 sliding block matching the No. 2 slide groove.

[0012] The beneficial effects of the present invention are as follows: the movement stroke of the strip in the injection molding cavity of the cavity part of the present invention is shortened, and the shortened movement stroke of the strip can reduce the friction between the strip and the cavity part, making it easier to feed the strip, and the feeding accuracy of the strip lip is higher; the first end feeding assembly and the middle feeding assembly (except the No. 10 cavity part) can be away from the strip feeding area, reducing the obstruction during strip feeding, making strip feeding easier, reducing the operator's workload, and also improving the product qualification rate. In addition, the No. 1 power part retracts and pulls the No. 4 cavity part. Due to the jacking slope of the jump block, the No. 6 cavity part will rotate around the hinge shaft with the No. 1 power part, so that the barb of the No. 6 cavity part that cooperates with the strip avoids the characteristics of the strip, and the strip is not damaged during the removal process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 is a position relationship diagram of the jacking groove;

[0015] In the figure: 1- cavity part No. 1; 2- cavity part No. 2; 3- cavity part No. 3; 4- cavity part No. 4; 5- cavity part No. 5; 6- cavity part No. 6; 7- cavity part No. 7; 8- cavity part No. 8; 9- cavity part No. 9; 10- cavity part No. 10; 11- strip; 12- jump block; 13- bottom plate; 14- lifting groove; 15- lifting slope; 16- through hole; 17- reset groove;

[0016] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0018] like Figure 1 to Figure 2 As shown, a feeding mechanism of an edge-wrapping mold comprises a first end feeding assembly, an intermediate feeding assembly, a second end feeding assembly and a bottom plate 13, wherein the intermediate feeding assembly is located between the first end feeding assembly and the second end feeding assembly, and the injection cavities of the first end feeding assembly, the intermediate feeding assembly and the second end feeding assembly are connected as a whole, and the first end feeding assembly, the intermediate feeding assembly and the second end feeding assembly are mounted on the bottom plate 13;

[0019] The intermediate feeding assembly includes a No. 4 cavity part 4 slidably connected to the top surface of the bottom plate 13 and a No. 10 cavity part 10 fixed on the bottom plate 13, the No. 4 cavity part 4 slides along the width direction of the bottom plate 13, the No. 5 cavity part 5 is installed on the No. 4 cavity part 4, the No. 6 cavity part 6 is installed on the No. 5 cavity part 5, and the No. 10 cavity part 10 forms an injection cavity No. 1, and the strip 11 is located in the injection cavity No. 1, the No. 4 cavity part 4, the No. 5 cavity part 5 and the No. 6 cavity part 6 are all connected to the external No. 1 power part, the outer sides of the No. 4 cavity part 4 and the No. 5 cavity part 5 are fixedly connected to the No. 1 power part, and the outer side of the No. 6 cavity part 6 is fixed to the No. 1 power part. The No. 1 power piece is hinged, and a lifting groove 14 is provided on the top surface of the bottom plate 13. A jump block 12 is installed on the No. 6 cavity piece 6. The lower end of the jump block 12 passes through the No. 5 cavity piece 5 and the No. 4 cavity piece 4 in sequence and then extends into the lifting groove 14. A lifting slope 15 is provided on the side of the jump block 12 away from the No. 1 injection cavity. The inner wall of the lifting groove 14 away from the No. 1 injection cavity is inclined and matched with the lifting slope 15. A reset groove 17 matching with the jump block 12 is provided on the bottom plate 13. The lifting groove 14 is located between the reset groove 17 and the strip 11. The No. 1 power piece drives the No. 4 cavity piece 4, the No. 5 cavity piece 5 and the No. 6 cavity piece 6 to slide along the width direction of the bottom plate 13;

[0020] The first end feeding assembly includes a cavity piece 1 slidably connected to the top surface of the bottom plate 13, the cavity piece 1 slides along the length direction of the bottom plate 13, the cavity piece 2 is mounted on the cavity piece 1, the cavity piece 3 is mounted on the cavity piece 2, the cavity piece 1, the cavity piece 2 and the cavity piece 3 are all connected to the external power piece 2, and a second injection cavity is formed between the cavity piece 1, the cavity piece 2 and the cavity piece 3, one end of the strip 11 is located in the injection cavity 2, the injection cavity 2 is connected to the injection cavity 1, and the power piece 2 drives the cavity piece 1, the cavity piece 2 and the cavity piece 3 to slide along the length direction of the bottom plate 13;

[0021] Both the No. 1 power part and the No. 2 power part are telescopic power parts, such as a pneumatic cylinder, an oil cylinder and an electric cylinder.

[0022] The second end feeding assembly includes a No. 7 cavity part 7 connected to the top surface of the bottom plate 13, a No. 8 cavity part 8 is installed on the No. 7 cavity part 7, and a No. 9 cavity part 9 is installed on the No. 8 cavity part 8. An injection cavity No. 3 is formed between the No. 7 cavity part 7, the No. 8 cavity part 8 and the No. 9 cavity part 9. The other end of the strip 11 is located in the No. 3 injection cavity, and the No. 3 injection cavity is connected to the No. 1 injection cavity.

[0023] The fifth cavity part 5 and the fourth cavity part 4 are both provided with through holes 16 for the jumping block 12 to pass through.

[0024] A No. 1 slide groove for sliding the No. 1 cavity part 1 is disposed on the top surface of the bottom plate 13 , and a No. 1 sliding block matching the No. 1 slide groove is disposed on the bottom surface of the No. 1 cavity part 1 .

[0025] A No. 2 slide groove for sliding the No. 4 cavity part 4 is disposed on the top surface of the bottom plate 13 , and a No. 2 sliding block matching the No. 2 slide groove is disposed on the bottom surface of the No. 4 cavity part 4 .

[0026] When the present invention is working, the No. 1 cavity part 1, the No. 2 cavity part 2 and the No. 3 cavity part 3 are acted by the No. 2 power part to move out of the area where the strip 11 is fed; the No. 4 cavity part 4, the No. 5 cavity part 5 and the No. 6 cavity part 6 are acted by the No. 1 power part to move outward away from the feeding area of ​​the strip 11, thereby leaving enough space for the strip 11 to be fed, making the feeding more convenient. The strip 11 is lightly tapped onto the No. 10 cavity part 10, and the strip 11 is moved later so that it is correctly fed into the No. 3 injection cavity formed by the No. 7 cavity part 7, the No. 8 cavity part 8 and the No. 9 cavity part 9, and then the No. 4 cavity part 4, the No. 5 cavity part 5 and the No. 6 cavity part 6 are driven back to their positions by the No. 1 power part. The jump block 12 connected to the No. 6 cavity part 6 can make the No. 6 cavity part 6 jump up when it contacts the strip 11 to avoid damage to the strip 11. The last cavity part 1, the second cavity part 2 and the third cavity part 3 are driven by the second power part to return to the correct position for feeding. At this time, the first injection cavity, the second injection cavity and the third injection cavity are connected, and the strip 11 is located in the connected cavity.

[0027] During the feeding operation of the existing hemming mold feeding mechanism, the strip 11 needs to move twice, and the movement stroke of the strip 11 is relatively long. The present invention only needs to tap the strip 11 onto the No. 10 cavity part 10, which reduces the damage to the strip. The strip 11 moves along the arc direction into the No. 3 injection cavity formed by the No. 7 cavity part 7, the No. 8 cavity part 8 and the No. 9 cavity part 9. The strip 11 only moves once without damage, and the movement stroke in the injection cavity of the cavity part is short. The shortened movement stroke of the strip 11 can reduce the friction between the strip 11 and the cavity part, making it easier to feed the strip 11, and the feeding accuracy of the lip of the strip 11 is higher; the first end feeding component and the middle feeding component (except the No. 10 cavity part 10) can be away from the feeding area of ​​the strip 11, reducing the obstruction of the strip 11 during feeding, making it easier to feed the strip 11, reducing the workload of the operator, and also improving the qualified rate of the product.

[0028] When demolding, the power piece No. 1 retracts and pulls the cavity piece No. 4 4. Due to the lifting slope 15 of the jump block 12, the cavity piece No. 6 will rotate around the hinge axis with the power piece No. 1, so that the barb of the cavity piece No. 6 6 and the strip 11 can avoid the characteristics of the strip 11, and the strip 11 will not be damaged during the removal process.

[0029] The "No. 1", "No. 2" and the like in the present invention are only used to distinguish the names of different parts, and do not represent their specifications, nor their installation order.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0034] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A feeding mechanism for an edge wrapping die, characterized in that: The invention comprises a first end feeding assembly, an intermediate feeding assembly, a second end feeding assembly and a bottom plate (13), wherein the intermediate feeding assembly is located between the first end feeding assembly and the second end feeding assembly, the injection cavities of the first end feeding assembly, the intermediate feeding assembly and the second end feeding assembly are connected to form a whole, and the first end feeding assembly, the intermediate feeding assembly and the second end feeding assembly are mounted on the bottom plate (13); The intermediate feeding assembly comprises a No. 4 cavity part (4) slidably connected to the top surface of a bottom plate (13) and a No. 10 cavity part (10) fixed on the bottom plate (13); the No. 4 cavity part (4) slides along the width direction of the bottom plate (13); a No. 5 cavity part (5) is installed on the No. 4 cavity part (4); a No. 6 cavity part (6) is installed on the No. 5 cavity part (5); a No. 1 injection molding cavity is formed between the No. 4 cavity part (4), the No. 5 cavity part (5), the No. 6 cavity part (6) and the No. 10 cavity part (10); a strip (11) is located in the No. 1 injection molding cavity; the No. 4 cavity part (4), the No. 5 cavity part (5) and the No. 6 cavity part (6) are all connected to an external No. 1 power part; the outer sides of the No. 4 cavity part (4) and the No. 5 cavity part (5) are connected to the No. 1 power part. The six cavity parts (6) are fixedly connected to the power part No. 1, and the outer side of the six cavity parts (6) is hinged to the power part No.

1. The top surface of the bottom plate (13) is provided with a lifting groove (14). The six cavity parts (6) are provided with a jump block (12). The lower end of the jump block (12) passes through the five cavity parts (5) and the four cavity parts (4) in sequence and then extends into the lifting groove (14). The side of the jump block (12) away from the injection cavity No. 1 is provided with a lifting inclined surface (15). The inner wall of the lifting groove (14) away from the injection cavity No. 1 is inclined and matched with the lifting inclined surface (15). The bottom plate (13) is provided with a reset groove (17) matched with the jump block (12), and the lifting groove (14) is located between the reset groove (17) and the strip (11).

2. The feeding mechanism for the hemming die according to claim 1, characterized in that: The first end feeding assembly comprises a cavity part (1) slidably connected to the top surface of the bottom plate (13), the cavity part (1) slides along the length direction of the bottom plate (13), the cavity part (1) is mounted on the cavity part (1), the cavity part (2) is mounted on the cavity part (2), the cavity part (1 ...1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity part (1) is mounted on the cavity 3. The feeding mechanism for the hemming die according to claim 2, characterized in that: The second end feeding assembly comprises a No. 7 cavity part (7) connected to the top surface of the bottom plate (13), a No. 8 cavity part (8) is installed on the No. 7 cavity part (7), a No. 9 cavity part (9) is installed on the No. 8 cavity part (8), a No. 3 injection molding cavity is formed between the No. 7 cavity part (7), the No. 8 cavity part (8) and the No. 9 cavity part (9), the other end of the strip (11) is located in the No. 3 injection molding cavity, and the No. 3 injection molding cavity is connected to the No. 1 injection molding cavity.

4. The feeding mechanism for the hemming die according to claim 1, characterized in that: The fifth cavity part (5) and the fourth cavity part (4) are both provided with through holes (16) for the jumping block (12) to pass through.

5. The feeding mechanism for the hemming die according to claim 2, characterized in that: The top surface of the bottom plate (13) is provided with a No. 1 slide groove for the No. 1 cavity part (1) to slide, and the bottom surface of the No. 1 cavity part (1) is provided with a No. 1 sliding block matching the No. 1 slide groove.

6. The feeding mechanism for the hemming die according to claim 5, characterized in that: The top surface of the bottom plate (13) is provided with a No. 2 slide groove for the No. 4 cavity component (4) to slide, and the bottom surface of the No. 4 cavity component (4) is provided with a No. 2 sliding block matching the No. 2 slide groove.

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