CN216506539U - Runner shearing and ejecting mechanism with sliding block type cutter - Google Patents
Runner shearing and ejecting mechanism with sliding block type cutter Download PDFInfo
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- CN216506539U CN216506539U CN202122995402.8U CN202122995402U CN216506539U CN 216506539 U CN216506539 U CN 216506539U CN 202122995402 U CN202122995402 U CN 202122995402U CN 216506539 U CN216506539 U CN 216506539U
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- flow channel
- cutter body
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- ejector pin
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Abstract
The utility model discloses a flow channel shearing and ejecting mechanism with a sliding block type cutter, and belongs to the technical field of dies. Comprises a cutter body, a pushing component and a driving component; the bottom of the cutter body is provided with a driving groove which is obliquely arranged towards the right; a flow channel is arranged at the top of the cutter body, a channel is formed at the bottom of the cutter body, and the channel is communicated with the bottom of the flow channel; the pushing assembly comprises a thimble, a thimble seat and a pushing piece, the thimble seat is provided with a chute, the lower end of the thimble penetrates through the top of the thimble seat and is in sliding connection with the chute, the upper end of the thimble penetrates through the channel, and the bottom of the thimble seat is fixedly connected with the upper end of the pushing piece; the driving assembly comprises a shifting block, a connecting piece and a telescopic part, wherein the telescopic end of the telescopic part is connected with the lower end of the shifting block through the connecting piece, the shape of the shifting block is matched with the shape and size of the driving groove, and the shifting block is in sliding fit with the driving groove. The utility model is used for cutting the demoulding plastic part, the demoulding plastic part has good quality and a flush surface, the stability and the reliability of the mechanism are ensured, and the service life is good.
Description
Technical Field
The utility model relates to the technical field of molds, in particular to a runner ejection mechanism with a slider type sprue cutter.
Background
The gate of the demoulding of the plastic part is wider, manual trimming is adopted in the past, the quality of the gate on the surface of the plastic part is poor and uneven, the gate is cut by a sliding block as a feasible method, and when the cut runner is left on the sliding block, a common runner ejection mechanism cannot simultaneously perform ejection movement and move along with the sliding block. The existing part runner shearing and ejecting combined mechanism can realize automatic shearing and runner ejection in a gate mould, but is compared with the technology: for example, the integral thimble is unbalanced in stress during horizontal movement, too thick easily causes clamping stagnation, too thin easily deforms and damages, and finally causes poor quality at a plastic part sprue; if the spring runner thimble is arranged in the sliding block, the service life of the thimble is relatively short, and the spring is gradually fatigued along with the increase of the service time, so that the reliability of the mechanism is reduced.
The existing flow channel shearing ejection mechanism has the following defects:
(1) the quality of the ejected plastic part at the sprue is poor and uneven.
(2) The thimble action reliability and stability are poor.
(3) The mechanism has a short life.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a flow channel shearing and ejecting mechanism with a slider type cutter.
The purpose of the utility model is realized by adopting the following technical scheme: a runner shearing and ejecting mechanism with a sliding block type cutter is arranged on a movable die and comprises a cutter body, a pushing assembly and a driving assembly;
the bottom of the cutter body is provided with a driving groove which is obliquely arranged towards the right;
a flow channel is arranged at the top of the cutter body and is positioned on the left side of the driving groove;
a channel is formed in the bottom of the cutter body and is communicated with the bottom of the flow channel;
the pushing assembly comprises an ejector pin, an ejector pin seat and a pushing piece, the ejector pin seat is provided with a sliding groove, the lower end of the ejector pin penetrates through the top of the ejector pin seat and is in sliding connection with the sliding groove, the upper end of the ejector pin penetrates through the channel, and the bottom of the ejector pin seat is fixedly connected with the upper end of the pushing piece;
the driving assembly comprises a shifting block, a connecting piece and a telescopic part, wherein the telescopic end of the telescopic part is connected with the lower end of the shifting block through the connecting piece, the shifting block is matched with the driving groove in shape and size, and the shifting block is in sliding fit with the driving groove.
Further, a cutting edge part is arranged at the left end of the cutter body, and the cutting edge part is a polyhedron.
Further, the upper end surface of the blade portion is an inclined surface.
Furthermore, a limiting groove is formed in the top of the cutter body and is located between the flow channel and the driving groove.
Further, still including the cutter stopper, the cutter stopper sets up in the lower terminal surface of cover half, the lower extreme of cutter stopper with spacing groove sliding fit.
Furthermore, the telescopic component further comprises a travel switch, and the travel switch is electrically connected with the telescopic component.
Further, still include the thimble board, the thimble board with the lower extreme fixed connection of pushing away the piece.
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the utility model, the telescopic part drives the connecting piece to lift up and down, before the die sinking is completed by injection molding, the telescopic part drives the connecting piece to move downwards, the connecting piece drives the shifting block to move towards the direction of the separation driving groove, so that the cutter body moves towards the right horizontally, the plastic part and the runner part are separated and cut in the process of moving towards the right, the thimble penetrating through the cutter body moves towards the right along the chute of the thimble seat, the reduction of the reliability of the mechanism action caused by unbalanced stress of the thimble is avoided by the simple structural design, and meanwhile, the thimble seat enhances the stability of the horizontal movement of the thimble seat. And finally, the ejector pin plate can drive the ejector piece and the ejector pin seat to enable the ejector pin to eject the runner piece, the demolded plastic piece is good in quality and flush in surface, and meanwhile, the ejection mechanism is ensured to have good service life.
Drawings
Fig. 1 is a schematic structural diagram of a flow channel shearing and ejecting mechanism with a slider-type cutter according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a flow channel shearing and ejecting mechanism with a slider-type cutter according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a moving state of a flow channel shearing and ejecting mechanism with a slider type cutter according to an embodiment of the present invention.
In the figure: 1. fixing a mold; 2. moving the mold; 3. molding; 4. a cutter body; 41. a flow channel; 42. a limiting groove; 43. a drive slot; 5. a cutter limiting block; 6. a thimble; 7. a thimble seat; 71. a chute; 8. pushing the workpiece; 9. an ejector plate; 10. shifting blocks; 11. a connecting member; 12. a telescopic member; 13. a travel switch.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
As shown in fig. 1 to 3, a flow channel shearing and ejecting mechanism with a slider type cutter is provided, the ejecting mechanism is arranged on a movable mold 2 and comprises a cutter body 4, a pushing assembly and a driving assembly; the bottom of the cutter body 4 is provided with a driving groove 43 which is obliquely arranged towards the right; the top of the cutter body 4 is provided with a flow passage 41, and the flow passage 41 is positioned on the left side of the driving groove 43; a channel is formed at the bottom of the cutter body 4 and is communicated with the bottom of the flow channel 41; the pushing assembly comprises a thimble 6, a thimble seat 7 and a pushing piece 8, the thimble seat 7 is provided with a chute 71, the lower end of the thimble 6 penetrates through the top of the thimble seat 7 and is in sliding connection with the chute 71, the upper end of the thimble 6 penetrates through a channel, and the bottom of the thimble seat 7 is fixedly connected with the upper end of the pushing piece 8; the driving assembly comprises a shifting block 10, a connecting piece 11 and a telescopic part 12, wherein the telescopic end of the telescopic part 12 is connected with the lower end of the shifting block 10 through the connecting piece 11, the shape of the shifting block 10 is matched with the shape and the size of the driving groove 43, and the shifting block 10 is in sliding fit with the driving groove 43.
The cutter body 4 is arranged on the movable die 2 and positioned between the fixed die 1 and the movable die 2, wherein the pushing assembly and the driving assembly are arranged on the movable die 2, the telescopic component 12 drives the connecting piece 11 to lift up and down, and the connecting piece 11 drives the shifting block 10 to move towards the direction of separating from the driving groove 43, so that the cutter body 4 moves towards the right (the driving groove 43 and the shifting block 10 are both obliquely arranged towards the right, and the cutter body can be obtained by stress analysis). The in-process that cutter body 4 removed towards the right side, the left end of cutter body 4 is to moulding 3 and being broken away from the cutting with the runner piece, thimble 6 of cutter body 4 can remove towards the right side along spout 71 of thimble seat 7 along with the removal of cutter body 4, it can satisfy thimble 6 and provide removal space and regulation along with the process that cutter body 4 removed from the right side to set up spout 71, avoid thimble 6 jamming damage, the ejecting runner piece of accessible thimble 6 at last, mould 3 of high quality and surperficial parallel and level through the drawing of patterns of cutter body 4 cutting. The thimble 6 can pass through the channel to eject the runner piece, so that the cleaning is convenient. The runner piece is connected with the lower right end of the plastic piece 3, and the plastic piece 3 is positioned on the left side of the cutter body 4. The left end of the cutter body 4 can be provided with an inclined surface, so that the cutter body is convenient to move and cut.
Further, a cutting edge part is arranged at the left end of the cutter body 4, and the cutting edge part is a polyhedron. The cutting edge portion may be a polygonal surface, as shown in fig. one, the convex portion near the flow channel 41 is a polyhedron, or as shown in fig. two, the left end surface of the cutter body 4 is a trapezoidal contact surface.
Further, the upper end surface of the blade portion is an inclined surface. The upper end face of the cutting edge part can be an inclined plane which is arranged in a left-low-right-high mode, and can also be provided with an inclined plane which is arranged in a front-low-back-high mode simultaneously or independently.
Further, the top of the cutter body 4 is provided with a limiting groove 42, and the limiting groove 42 is located between the flow channel 41 and the driving groove 43.
Further, still including cutter stopper 5, cutter stopper 5 sets up in the lower terminal surface of cover half 1, and the lower extreme and the spacing groove 42 sliding fit of cutter stopper 5. The limiting groove 42 is used for limiting the displacement range of the left and right movement of the cutter body 4, the lower end of the cutter limiting block 5 is positioned in the limiting groove 42, the cutter limiting block 5 can move left and right along the limiting groove 42, and the limiting groove 42 is in sliding fit with the cutter limiting block 5 to protect parts inside the die.
Furthermore, a travel switch 13 is further included, and the travel switch 13 is electrically connected with the telescopic component 12. A travel switch 13 is provided for precisely controlling the movement travel of the telescopic member 12, which in this embodiment is a cylinder selected by the telescopic member 12. The travel switch 13 transmits signals to the injection molding machine, the injection molding machine controls the operation of the oil cylinder, and the main joint of the oil cylinder is arranged on the injection molding machine.
Further, the device also comprises an ejector plate 9, and the ejector plate 9 is fixedly connected with the lower end of the pushing piece 8. In this embodiment, the pushing element 8 is a push rod, the lower end of the pushing element 8 is connected with the ejector plate 9, the ejector plate 9 pushes the pushing element 8 to be transmitted to the ejector 6 through the ejector pin base 7, and the upper end of the ejector pin 6 pushes the runner upward.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (7)
1. The utility model provides a runner is cuted and ejection mechanism with slider formula cutter, ejection mechanism sets up on the movable mould, its characterized in that: comprises a cutter body, a pushing component and a driving component;
the bottom of the cutter body is provided with a driving groove which is obliquely arranged towards the right;
a flow channel is arranged at the top of the cutter body and is positioned on the left side of the driving groove;
a channel is formed in the bottom of the cutter body and is communicated with the bottom of the flow channel;
the pushing assembly comprises an ejector pin, an ejector pin seat and a pushing piece, the ejector pin seat is provided with a sliding groove, the lower end of the ejector pin penetrates through the top of the ejector pin seat and is in sliding connection with the sliding groove, the upper end of the ejector pin penetrates through the channel, and the bottom of the ejector pin seat is fixedly connected with the upper end of the pushing piece;
the driving assembly comprises a shifting block, a connecting piece and a telescopic part, wherein the telescopic end of the telescopic part is connected with the lower end of the shifting block through the connecting piece, the shifting block is matched with the driving groove in shape and size, and the shifting block is in sliding fit with the driving groove.
2. A flow channel shearing and ejection mechanism with slider-type cutters as claimed in claim 1, wherein:
the left end of the cutter body is provided with a cutting edge part, and the cutting edge part is a polyhedron.
3. A flow channel shearing and ejection mechanism with slider-type cutters as claimed in claim 2, wherein:
the upper end surface of the cutting edge part is an inclined surface.
4. A flow channel shearing and ejection mechanism with slider-type cutters as claimed in claim 1, wherein:
the top of cutter body is provided with the spacing groove, the spacing groove is located the runner with between the drive groove.
5. A flow channel shearing and ejection mechanism with slider-type cutters as claimed in claim 4, wherein:
the fixed die is characterized by further comprising a cutter limiting block, the cutter limiting block is arranged on the lower end face of the fixed die, and the lower end of the cutter limiting block is in sliding fit with the limiting groove.
6. A flow channel shearing and ejection mechanism with slider-type cutters as claimed in claim 1, wherein:
still include travel switch, travel switch with telescopic part electric connection.
7. A flow channel shearing and ejection mechanism with slider-type cutters as claimed in claim 1, wherein:
the ejector pin plate is fixedly connected with the lower end of the pushing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122995402.8U CN216506539U (en) | 2021-11-30 | 2021-11-30 | Runner shearing and ejecting mechanism with sliding block type cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122995402.8U CN216506539U (en) | 2021-11-30 | 2021-11-30 | Runner shearing and ejecting mechanism with sliding block type cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216506539U true CN216506539U (en) | 2022-05-13 |
Family
ID=81465079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122995402.8U Active CN216506539U (en) | 2021-11-30 | 2021-11-30 | Runner shearing and ejecting mechanism with sliding block type cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216506539U (en) |
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2021
- 2021-11-30 CN CN202122995402.8U patent/CN216506539U/en active Active
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