CN211390286U - Lower die adjusting mechanism of powder forming machine - Google Patents
Lower die adjusting mechanism of powder forming machine Download PDFInfo
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- CN211390286U CN211390286U CN201921441910.8U CN201921441910U CN211390286U CN 211390286 U CN211390286 U CN 211390286U CN 201921441910 U CN201921441910 U CN 201921441910U CN 211390286 U CN211390286 U CN 211390286U
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- gear
- adjusting
- lower die
- floating support
- locking
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Abstract
The utility model discloses a lower mould adjustment mechanism of powder forming machine, powder forming machine's lower mould adjustment mechanism, including the frame, be provided with the floating support mechanism in the cavity of frame. The floating support mechanism is fixedly provided with a lifting support rod which penetrates through the top wall of the cavity in a sliding manner; the floating support mechanism is rotatably connected with two adjusting gears; the adjusting gear is internally provided with a thread through hole, and a limit screw rod is respectively arranged in the two thread through holes in a penetrating way; the lifting support rod is rotatably connected with a transmission gear, and the two adjusting gears are meshed with the transmission gear; an adjusting mechanism drives the transmission gear to rotate, so that the adjusting gear adjusts the height corresponding to the limiting screw rod, the floating support mechanism pushes the lifting support rod to ascend, and the upper end of the limiting screw rod is limited on the top wall of the base; the powder forming equipment can replace servo control equipment, the equipment cost is reduced, and common operators can complete the operation.
Description
Technical Field
The utility model relates to a powder forming field, concretely relates to lower mould adjustment mechanism of powder forming machine.
Background
Powder molding has been used in a large number of applications in material molding to produce parts of high hardness. The powder forming die generally comprises an upper die, a lower die and a middle die; in the forming process, the powder is extruded by generally descending the upper die and ascending the middle die so as to extrude the powder to be formed by extrusion; when in demoulding, the middle mould continuously rises to eject the product; or after the upper die and the lower die are closed, the upper die and the lower die simultaneously move downwards, and powder is extruded by the middle die; after the powder is formed, the upper die and the lower die are opened, and the lower die continues to descend, so that a formed product is ejected through the middle die. Specifically, powder is filled into the lower die through a powder filling mechanism, and a product is obtained through extrusion of the upper die and the lower die. The powder forming machine realizes the extrusion forming of the powder. The powder compression ratio is generally set to 2:1, so that the upper die and the lower die are lowered simultaneously during molding, and the powder is pressed by the middle die to complete extrusion molding.
Currently, the heights of powder molded products are different from each other, and thus, when the lower mold is lowered and the lower mold is raised to an original position at the time of compression and ejection of the product, the heights are changed according to the different products. At present, in order to realize the molding of different products and ensure the compression ratio of powder, a pressing mechanism and a lifting mechanism for pushing a lower die to lift are generally realized by a servo motor and a screw rod pair; in view of the above disadvantages, it is necessary to design a lower die adjustment mechanism of a powder forming machine.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the lower die adjusting mechanism of the powder forming machine is provided to solve the problems that the existing powder forming machine adopting servo control is high in cost and high in requirement on operators.
In order to solve the technical problem, the technical scheme of the utility model is that: the lower die adjusting mechanism of the powder forming machine comprises a machine base, wherein a cavity is arranged in the machine base; a floating support mechanism is arranged in the cavity, and the pressing mechanism pushes the floating support mechanism to compress downwards; the floating support mechanism is fixedly provided with a lifting support rod, and the lifting support rod penetrates through the top wall of the cavity in a sliding manner; the floating support mechanism is rotatably connected with two adjusting gears, and the two adjusting gears are positioned at two sides of the lifting support rod; the adjusting gear is internally provided with a thread through hole, and a limit screw rod is respectively arranged in the two thread through holes in a penetrating way; the lifting support rod is rotatably connected with a transmission gear, and the two adjusting gears are meshed with the transmission gear; an adjusting mechanism drives the transmission gear to rotate, so that the adjusting gear adjusts the height corresponding to the limit screw, the floating support mechanism pushes the lifting support rod to ascend, and the upper end of the limit screw is limited on the top wall of the base.
Furthermore, the threaded through hole in one of the adjusting gears is a left-hand thread, and the threaded hole in the other adjusting gear is a right-hand thread.
Further, the adjusting mechanism comprises a rotating shaft, a driving bevel gear, a driving straight gear, a driven bevel gear and a transition gear; the rotating shaft is rotatably connected with two side plates of the machine base, the main shaft straight gear is rotatably connected to the inner side of the machine base, the driving bevel gear is fixedly sleeved on the rotating shaft, the driven bevel gear is fixedly sleeved at the upper end of the driving straight gear, and the driving bevel gear is meshed with the driven bevel gear; the transition gear is rotationally connected to the floating support mechanism and meshed with the driving straight gear and the transmission gear; the tooth length of the driving straight gear is larger than the stroke of the floating support mechanism in up-and-down floating; and a locking mechanism for locking the rotating shaft is also arranged on the outer side of the machine base.
Furthermore, the locking mechanism comprises an L-shaped locking plate fixed on the outer side of the base, and the locking plate is provided with a locking hole and a clamping groove communicated with the locking hole; the clamping groove is provided with a screw hole, and the locking screw is connected with two sides of the clamping groove; the locking hole is sleeved at the end part of the rotating shaft.
Furthermore, the inner side of the machine base is also provided with two buffer cylinders, and the two buffer cylinders are positioned above the corresponding limit screw rods.
Further, the floating support mechanism comprises a connecting plate and a support compression piece; the lifting support rod is arranged on the connecting plate; the two opposite corners of the connecting plate are respectively provided with the supporting compression piece, and the bottom end of each supporting compression piece is fixedly connected to the bottom wall of the cavity; the pressing mechanism pushes the connecting plate to compress the supporting compression piece.
Further, the supporting compression piece is a compression spring or an air cylinder.
Compared with the prior art, the electric wire end penetrating and tin dipping all-in-one machine has the following beneficial effects:
1. when the lifting stroke of the lower die needs to be adjusted, the transmission gear is driven to rotate through the adjusting mechanism, and the transmission gear drives the two adjusting gears to rotate so as to adjust the height position of the limiting screw rod; therefore, the up-down stroke of the floating support mechanism is adjusted; when the lower die is lifted, a cavity formed by the lower die and the middle die can be in proportion to the compressed cavity, so that the quality of a formed product is ensured; therefore, the servo control equipment is replaced, the cost of the equipment is reduced, and the ordinary operators can complete the operation.
Drawings
Fig. 1 is a perspective view of a lower die adjusting mechanism of the powder forming machine of the present invention;
FIG. 2 is a front view of a lower die adjustment mechanism of the powder forming machine of the present invention;
fig. 3 is a structural view of the base part of the lower die adjusting mechanism of the powder forming machine of the present invention.
Detailed Description
The following detailed description will be further described in conjunction with the above-identified drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail.
Referring to fig. 1-2, the lower die adjusting mechanism of the powder forming machine comprises a machine base 1, wherein a cavity is arranged in the machine base 1; a floating support mechanism 2 is arranged in the cavity, and a pressing mechanism (not shown in the attached drawing) pushes the floating support mechanism 2 to compress downwards. The floating support mechanism 2 is fixedly provided with a lifting support rod 3, and the lifting support rod 3 penetrates through the top wall of the cavity in a sliding manner. The floating support mechanism 2 is rotatably connected with two adjusting gears 4, and the two adjusting gears 4 are positioned at two sides of the lifting support rod 3; specifically, two bearing holes are formed in the floating support mechanism 2, bearings are arranged in the bearing holes, and the bottom of the adjusting gear 4 is arranged at a connecting position connected with an inner ring of the bearing. A threaded through hole is formed in each adjusting gear 4, and a limit screw 5 is arranged in each threaded through hole in a penetrating manner; the lifting support rod 3 is rotatably connected with a transmission gear 6, and the two adjusting gears 4 are meshed with the transmission gear 6; an adjusting mechanism 7 drives the transmission gear 6 to rotate, so that the adjusting gear 4 adjusts the height corresponding to the limit screw 5, the floating support mechanism 2 pushes the lifting support rod 3 to ascend, and the upper end of the limit screw 5 is limited on the top wall of the machine base 1. When the lifting stroke of the lower die needs to be adjusted, the transmission gear 6 is driven to rotate through the adjusting mechanism 7, and the transmission gear 6 drives the two adjusting gears 4 to rotate so as to adjust the height position of the limiting screw 5; therefore, the up-down stroke of the floating support mechanism 2 is adjusted; when the lower die is lifted, a cavity formed by the lower die and the middle die can be in proportion to the compressed cavity, so that the quality of a formed product is ensured; therefore, the servo control equipment is replaced, the cost of the equipment is reduced, and the ordinary operators can complete the operation.
Specifically, set up the backup pad on lifting support pole 3, set up many spinal branchs post in the backup pad, the lower mould is installed in the upper end of support column, perhaps sets up the lower bolster on the support column, and the lower mould is installed on the lower bolster. The middle die base is fixedly arranged at the top of the machine base 1, the middle die is fixedly arranged on the middle die base, and the upper end of the middle die extends into the cavity of the lower die; when the lower die descends, the middle die extends into the upper end of the cavity of the lower die; the powder in the cavity is extruded, and the molded product can be ejected out.
Further, the threaded through hole in one of the adjusting gears 4 is a left-hand thread, and the threaded hole in the other adjusting gear 4 is a right-hand thread. Under the rotation of the transmission gear 6, the two adjusting gears 4 are driven to rotate oppositely, so that the two limit screws 5 can be pushed to ascend and descend simultaneously.
Further, referring to fig. 3, the adjusting mechanism 7 includes a rotation shaft 70, a drive bevel gear 71, a drive spur gear 72, a driven bevel gear 73, and a transition gear 74. The pivot 70 with the both sides board of frame 1 rotates and is connected, main shaft straight-tooth gear 71 rotates and connects the inboard of frame 1, drive bevel gear 71 set firmly in on the pivot 70, driven bevel gear 73 set firmly in the upper end of drive straight-tooth gear 72, drive bevel gear 71 with driven bevel gear 73 meshes. The transition gear 74 is rotationally connected to the floating support mechanism 2 and is meshed with the driving straight gear 71 and the transmission gear 6; the tooth length of the driving spur gear 72 is larger than the stroke of the floating support mechanism 2 floating up and down, so that the transition gear 74 can be always meshed with the driving spur gear 72. The outer side of the machine base 1 is further provided with a locking mechanism 75 for locking the rotating shaft 70. When the height of the limit screw rod 4 is adjusted, the rotating shaft 70 is rotated, and the driving bevel gear 71 is meshed with the driven bevel gear 73, so that the transmission gear 6 is driven to rotate, the height of the limit screw rod 5 is adjusted, and the stroke of the floating support mechanism 2 is controlled.
Further, as shown in fig. 1 to 3, the locking mechanism 75 includes an L-shaped locking plate fixed on the outer side of the machine base 1, and the locking plate is provided with a locking hole and a clamping groove communicated with the locking hole; the clamping groove is provided with a screw hole, and the locking screw is connected with two sides of the clamping groove; the locking hole is sleeved at the end of the rotating shaft 70. After the position adjustment of the limit screw 5 is completed, the locking mechanism 75 fixes the rotating shaft 70.
Further, the inner side of the machine base 1 is also provided with two buffer cylinders 10, and the two buffer cylinders 10 are positioned above the limit screw 5. When the floating support mechanism 2 pushes the lower die to ascend, the limit screw 5 is contacted with the telescopic end of the buffer cylinder 10, and the buffer cylinder 10 is extruded to achieve the effects of buffering and protecting the limit screw 5.
Further, referring to fig. 3, the floating support mechanism 2 includes a connection plate 20 and a support compression member 21; the lifting support rod 3 is arranged on the connecting plate 20; the two opposite corners of the connecting plate 20 are provided with the supporting compression pieces 21, and the bottom ends of the supporting compression pieces 21 are fixedly connected to the bottom wall of the cavity; the pressing mechanism pushes the connecting plate 20 to compress the supporting compression member 21. In the powder extrusion molding of the lower die, the pressing mechanism pushes the supporting compression piece 21 to compress, and after molding, the supporting compression piece 21 resets to push the recovered powder filling position of the lower die.
Further, the pressing mechanism is an air cylinder, a hydraulic cylinder or a cam mechanism provided on the powder molding machine.
Further, the supporting compression member 21 is a compression spring or a cylinder.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.
Claims (7)
1. The lower die adjusting mechanism of the powder forming machine comprises a machine base, wherein a cavity is arranged in the machine base; a floating support mechanism is arranged in the cavity, and the pressing mechanism pushes the floating support mechanism to compress downwards; the device is characterized in that a lifting support rod is fixedly arranged on the floating support mechanism and penetrates through the top wall of the cavity in a sliding manner; the floating support mechanism is rotatably connected with two adjusting gears, and the two adjusting gears are positioned at two sides of the lifting support rod; the adjusting gear is internally provided with a thread through hole, and a limit screw rod is respectively arranged in the two thread through holes in a penetrating way; the lifting support rod is rotatably connected with a transmission gear, and the two adjusting gears are meshed with the transmission gear; an adjusting mechanism drives the transmission gear to rotate, so that the adjusting gear adjusts the height corresponding to the limit screw, the floating support mechanism pushes the lifting support rod to ascend, and the upper end of the limit screw is limited on the top wall of the base.
2. The lower die adjustment mechanism of a powder forming machine according to claim 1, wherein the threaded through hole of one of the adjustment gears is a left-handed thread, and the threaded hole of the other adjustment gear is a right-handed thread.
3. The lower die adjustment mechanism of a powder molding machine according to claim 2, wherein the adjustment mechanism comprises a rotary shaft, a drive bevel gear, a drive spur gear, a driven bevel gear, and a transition gear; the rotating shaft is rotatably connected with two side plates of the machine base, the driving straight gear is rotatably connected to the inner side of the machine base, the driving bevel gear is fixedly sleeved on the rotating shaft, the driven bevel gear is fixedly sleeved at the upper end of the driving straight gear, and the driving bevel gear is meshed with the driven bevel gear; the transition gear is rotationally connected to the floating support mechanism and meshed with the driving straight gear and the transmission gear; the tooth length of the driving straight gear is larger than the stroke of the floating support mechanism in up-and-down floating; and a locking mechanism for locking the rotating shaft is also arranged on the outer side of the machine base.
4. The lower die adjusting mechanism of the powder forming machine according to claim 3, wherein the locking mechanism comprises an L-shaped locking plate fixed on the outer side of the base, and the locking plate is provided with a locking hole and a clamping groove communicated with the locking hole; the clamping groove is provided with a screw hole, and the locking screw is connected with two sides of the clamping groove; the locking hole is sleeved at the end part of the rotating shaft.
5. The lower die adjusting mechanism of the powder forming machine according to claim 1, wherein two buffer cylinders are further disposed on the inner side of the machine base, and the two buffer cylinders are located above the corresponding limit screws.
6. The lower die adjustment mechanism of the powder molding machine according to any one of claims 1 to 5, wherein the floating support mechanism includes a connecting plate and a support compression member; the lifting support rod is arranged on the connecting plate; the two opposite corners of the connecting plate are respectively provided with the supporting compression piece, and the bottom end of each supporting compression piece is fixedly connected to the bottom wall of the cavity; the pressing mechanism pushes the connecting plate to compress the supporting compression piece.
7. The lower die adjustment mechanism of a powder forming machine according to claim 6, wherein the support compression member is a compression spring or a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921441910.8U CN211390286U (en) | 2019-08-30 | 2019-08-30 | Lower die adjusting mechanism of powder forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921441910.8U CN211390286U (en) | 2019-08-30 | 2019-08-30 | Lower die adjusting mechanism of powder forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211390286U true CN211390286U (en) | 2020-09-01 |
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ID=72228436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921441910.8U Active CN211390286U (en) | 2019-08-30 | 2019-08-30 | Lower die adjusting mechanism of powder forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211390286U (en) |
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2019
- 2019-08-30 CN CN201921441910.8U patent/CN211390286U/en active Active
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