阅读说明：本技术 顶出装置 (Ejection device ) 是由 李同 李学文 马俊 于 2020-04-30 设计创作，主要内容包括：一种顶出装置,用于将产品顶出,包括用于承载所述产品的承载组件,所述顶出装置还包括驱动组件、连杆组件及顶出组件,所述连杆组件活动安装于所述承载组件内,所述驱动组件转动连接于所述连杆组件,所述顶出组件包括旋转件及顶杆,所述旋转件设有沿所述旋转件周向倾斜设置的支撑面,所述顶杆穿过所述承载组件并抵持于所述支撑面,所述连杆组件连接于所述旋转件并带动所述旋转件往复转动,控制所述顶杆顶出和收回。上述顶出装置能通过驱动组件自动将产品顶出。(The ejection device is used for ejecting a product and comprises a bearing assembly used for bearing the product, and further comprises a driving assembly, a connecting rod assembly and an ejection assembly, wherein the connecting rod assembly is movably arranged in the bearing assembly, the driving assembly is rotatably connected to the connecting rod assembly, the ejection assembly comprises a rotating piece and an ejector rod, the rotating piece is provided with a supporting surface which is obliquely arranged along the circumferential direction of the rotating piece, the ejector rod penetrates through the bearing assembly and abuts against the supporting surface, and the connecting rod assembly is connected to the rotating piece and drives the rotating piece to rotate in a reciprocating mode to control the ejector rod to eject and withdraw. The ejection device can automatically eject the product through the driving assembly.)

1. An ejection device for ejecting a product, comprising a carrying assembly for carrying the product, characterized in that: the ejection device further comprises a driving assembly, a connecting rod assembly and an ejection assembly, the connecting rod assembly is movably mounted in the bearing assembly, the driving assembly is rotatably connected with the connecting rod assembly, the ejection assembly comprises a rotating piece and an ejector rod, the rotating piece is provided with a supporting surface which is obliquely arranged along the circumferential direction of the rotating piece, the ejector rod penetrates through the bearing assembly and abuts against the supporting surface, and the connecting rod assembly is connected with the rotating piece and drives the rotating piece to rotate in a reciprocating mode to control the ejector rod to eject and retract.

2. The ejection device of claim 1, wherein: the bearing assembly comprises a bearing plate, a bottom plate and a supporting plate, wherein a groove is formed in one surface, deviating from the bearing plate, of the bottom plate, the supporting plate is installed in the groove, and the connecting rod assembly is clamped between the groove and the supporting plate.

3. The ejection device of claim 2, wherein: the bearing assembly further comprises a fixing plate, the groove is provided with a through hole, the fixing plate is installed in the through hole and connected with the bearing plate, and the rotating piece is rotatably connected to the fixing plate.

4. The ejection device of claim 3, wherein: the drive assembly comprises an eccentric wheel and a rotary cylinder, the eccentric wheel comprises an eccentric disc and a rotating shaft, one end of the rotating shaft is fixed on the periphery of the axis of the eccentric wheel, and the other end of the rotating shaft is connected with the rotary cylinder.

5. The ejection device of claim 4, wherein: the connecting rod assembly comprises a first connecting rod and a second connecting rod, the second connecting rod is rotatably connected to the first connecting rod, and the second connecting rod is further connected to the rotating piece.

6. The ejection device of claim 5, wherein: the first connecting rod is provided with a sliding groove, the eccentric disc is connected in the sliding groove in a sliding mode, and two ends of the first connecting rod respectively extend to the through holes.

7. The ejection device of claim 6, wherein: the rotating part comprises a rotary table and a mandrel, the mandrel is fixed to the axis position of the rotary table, the mandrel is provided with a pin hole along the radial direction, and the end part of the second connecting rod is provided with a connecting pin which penetrates through the pin hole.

8. The ejection device of claim 7, wherein: the turntable is provided with a stop surface, the stop surface is arranged along the radial direction of the turntable, and one end, far away from the bearing plate, of the stop surface extends along the circumferential direction of the turntable to the direction close to the bearing plate to form the supporting surface which is symmetrically arranged.

9. The ejection device of claim 3, wherein: the bearing plate is provided with an ejection hole for accommodating the ejector rod, a first clamping part is arranged in the hole wall of the ejection hole, the ejector rod is provided with a second clamping part, and the first clamping part is matched with the second clamping part so as to clamp the ejector rod in the ejection hole.

10. The ejection device of claim 9, wherein: the ejection assembly further comprises a spring, one end of the spring is fixed on the first clamping part, and the other end of the spring abuts against the bulge on the peripheral side of the second clamping part.

Technical Field

The application relates to the field of industrial manufacturing, in particular to an ejection device.

Background

In industrial production, it is often necessary to work a product using a mold. The step of separating the cast product from the mold is called demolding. In the demolding process, the product is directly taken out of the mold in a manual mode, and the processed product is tightly attached to the bottom mold, so that the material taking is inconvenient, the operation time of an operator is long, and the labor intensity is high. And in the manual mode drawing of patterns in-process, the operator is tiny drawing of patterns direction deviation can cause huge stress concentration, and this stress concentration reaches the biggest at drawing of patterns stage later stage, and this moment causes the damage to the product easily.

Disclosure of Invention

In view of the above, it is desirable to provide an ejection device capable of automatically ejecting a product.

The application provides an ejecting device in an embodiment for ejecting the product, including being used for bearing the carrier assembly of product, ejecting device still includes drive assembly, link assembly and ejecting subassembly, link assembly movable mounting in the carrier assembly, drive assembly rotate connect in link assembly, ejecting subassembly includes rotating member and ejector pin, the rotating member is equipped with the edge the holding surface that rotating member circumference slope set up, the ejector pin passes carrier assembly and support hold in the holding surface, link assembly connect in the rotating member drives the reciprocating rotation of rotating member, control the ejector pin is ejecting and withdraws.

In some embodiments of the present application, the bearing assembly includes a bearing plate, a bottom plate and a supporting plate, a groove is disposed on a surface of the bottom plate facing away from the bearing plate, the supporting plate is installed in the groove, and the connecting rod assembly is clamped between the groove and the supporting plate.

In some embodiments of the present application, the bearing assembly further includes a fixing plate, the groove is provided with a through hole, the fixing plate is installed in the through hole and connected to the bearing plate, and the rotating member is rotatably connected to the fixing plate.

In some embodiments of the present application, the driving assembly includes an eccentric wheel and a revolving cylinder, the eccentric wheel includes an eccentric disc and a rotating shaft, one end of the rotating shaft is fixed on the side of the axle center of the eccentric wheel, and the other end of the rotating shaft is connected to the revolving cylinder.

In some embodiments of the present application, the linkage assembly includes a first link and a second link pivotally coupled to the first link, the second link further coupled to the rotating member.

In some embodiments of the present application, the first connecting rod is provided with a sliding groove, the eccentric disc is slidably connected in the sliding groove, and two ends of the first connecting rod respectively extend to the through hole.

In some embodiments of the present application, the rotating member includes a rotating disc and a mandrel, the mandrel is fixed to an axial center of the rotating disc, the mandrel is provided with a pin hole along a radial direction, and a connecting pin is provided at an end of the second connecting rod and penetrates through the pin hole.

In some embodiments of the application, the carousel is equipped with the backstop face, the backstop face is along the carousel radially sets up, the backstop face is kept away from the one end of loading board is followed carousel circumference is to being close to the direction of loading board extends the support surface that forms the symmetry setting.

In some embodiments of the application, the bearing plate is provided with an ejection hole for accommodating the ejector rod, a first clamping part is arranged in the hole wall of the ejection hole, the ejector rod is provided with a second clamping part, and the first clamping part is matched with the second clamping part so as to clamp the ejector rod in the ejection hole.

In some embodiments of the present application, the ejection assembly further includes a spring, one end of the spring is fixed on the first retaining portion, and the other end of the spring abuts against the protrusion on the peripheral side of the second retaining portion.

In the ejection device, one end of the ejector rod abuts against the supporting surface, the other end of the ejector rod penetrates through the bearing component, two ends of the connecting rod assembly are respectively connected to the rotating part, the driving component drives the rotating part to rotate in a reciprocating manner through the connecting rod assembly, and the ejector rod is controlled to eject and retract, so that the ejector rod automatically and synchronously ejects the product covered on the bearing component.

Drawings

Fig. 1 is a schematic structural diagram of an ejection apparatus in an embodiment of the present application.

Fig. 2 is an exploded view of an ejection apparatus according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a carrier assembly according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a drive assembly and a link assembly according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of an ejection assembly according to an embodiment of the present application.

Fig. 6 is a schematic view illustrating a force analysis of a rotating member according to an embodiment of the present application.

Fig. 7 is a schematic view illustrating a force analysis of the lift pin in an embodiment of the present application.

Description of the main elements

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

In order that the above objects, features and advantages of the embodiments of the present application can be more clearly understood, a detailed description of the present application will be given below with reference to the accompanying drawings and detailed description. In addition, the features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments of the application, which are part of the disclosure and not all of the disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the disclosed scope of the embodiments in the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of this application belong. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application.

The embodiment of the application provides an ejection device for ejecting a product, including being used for bearing the carrier assembly of product, ejection device still includes drive assembly, link assembly and ejecting subassembly, link assembly movable mounting in the carrier assembly, drive assembly rotate connect in link assembly, ejecting subassembly includes rotating part and ejector pin, the rotating part is equipped with the edge the holding surface that rotating part circumference slope set up, the ejector pin passes the carrier assembly and support hold in the holding surface, link assembly connect in the rotating part drives the reciprocating rotation of rotating part, control the ejector pin is ejecting and withdraws.

In the ejection device, one end of the ejector rod abuts against the supporting surface, the other end of the ejector rod penetrates through the bearing component, two ends of the connecting rod assembly are respectively connected to the rotating part, the driving component drives the rotating part to rotate in a reciprocating manner through the connecting rod assembly, and the ejector rod is controlled to eject and retract, so that the ejector rod automatically and synchronously ejects the product covered on the bearing component.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an ejection device 100 is used to automatically eject a product 90 after the product 90 is processed. The ejection device 100 includes a carrier assembly 10, a driving assembly 20, a connecting rod assembly 30 and an ejection assembly 40. The connecting rod assembly 30 is movably installed in the bearing assembly 10, the ejection assembly 40 is rotatably connected to the bearing assembly 10, and two ends of the connecting rod assembly 30 are respectively connected to the ejection assembly 40. The driving assembly 20 is rotatably connected to the connecting rod assembly 30 to drive the ejecting assembly 40 to rotate back and forth through the connecting rod assembly 30, so that the ejecting assembly 40 penetrates through the end of the carrying assembly 10 to eject and retract synchronously, and the product 90 covered on the carrying assembly 10 is ejected.

Referring to fig. 3 and 4, in one embodiment, the carrier assembly 10 includes a carrier 11, a bottom plate 12, a supporting plate 13 and a fixing plate 14. The bearing plate 11 and the bottom plate 12 are connected with each other, the two ends of the bearing plate 11 are provided with positioning pins 111, one end of each positioning pin 111 is clamped between the bearing plate 11 and the bottom plate 12, and the other end of each positioning pin 111 protrudes out of the bearing plate 11 to clamp and position the product 90.

A groove 121 is formed in a surface of the bottom plate 12 facing away from the bearing plate 11, and the supporting plate 13 is mounted in the groove 121, so that the connecting rod assembly 30 is clamped between the groove 121 and the supporting plate 13. The support plate 13 is provided with a mounting hole 131 for passing through the driving assembly 20. Through holes 123 are formed in two ends of the groove 121, and the through holes 123 are opposite to the positioning pins 111. The fixing plate 14 is installed in the through hole 123 and connected to the bearing plate 11, so as to rotatably connect the ejection assembly 40 in the through hole 123. Specifically, a rotating cavity 141 is arranged on one side of the fixing plate 14 departing from the bearing plate 11, a fixing block 142 facing the rotating cavity 141 is further arranged on the fixing plate 14, and the end of the ejection assembly 40 is rotatably connected between the rotating cavity 141 and the fixing block 142.

The bearing plate 11 and the bottom plate 12 are connected with each other through bolts, and the fixing plate 14 is also connected with the bearing plate 11 through bolts, so that the bearing plate 11 can be replaced to process different products, the applicability of the ejection device 100 is improved, and the integrity of the ejection device 100 is ensured to the greatest extent. It is understood that the bearing plate 11 and the fixing plate 14 can also be connected to the bearing plate 11 by a fastener.

Referring to fig. 4, the driving assembly 20 includes an eccentric wheel 21 and a rotary cylinder 22, one end of the eccentric wheel 21 passes through the mounting hole 131 and is movably connected to the connecting rod assembly 30, and the other end of the eccentric wheel 21 is connected to the rotary cylinder 22, so that the rotary cylinder 22 drives the eccentric wheel 21 to rotate, and the connecting rod assembly 30 is driven to move. Specifically, the eccentric wheel 21 includes an eccentric disc 211 and a rotating shaft 212, one end of the rotating shaft 212 is fixed on the periphery of the axis of the eccentric wheel 21, and the other end of the rotating shaft 212 is connected to the transmission shaft of the revolving cylinder 22 so as to drive the eccentric disc 211 to rotate through the revolving cylinder 22. The eccentric disc 211 pushes the connecting rod assembly 30 around the circumference thereof, so that the connecting rod assembly 30 reciprocates. In one embodiment, the swivel cylinder 22 has a swivel angle of 180 °.

Referring to fig. 3 and 4, the connecting rod assembly 30 includes a first connecting rod 31 and a second connecting rod 32 rotatably connected to two ends of the first connecting rod 31. The first connecting rod 31 is installed between the groove 121 and the supporting plate 13, and two ends of the first connecting rod 31 respectively extend to the through hole 123. The first link 31 is provided with a sliding slot 311, and the eccentric disc 211 is slidably connected in the sliding slot 311. Specifically, the two opposite ends of the eccentric disc 211 are tangent to the side wall of the sliding slot 311 and slidably connected to the side wall of the sliding slot 311, and the rotary cylinder 22 drives the eccentric disc 211 to slide along the length direction of the sliding slot 311, so as to drive the two ends of the first connecting rod 31 to reciprocate along the extending direction. One end of the second link 32 is hinged to the end of the first link 31, and the other end is connected to the ejection assembly 40 through a connecting pin 321, so as to drive the ejection assembly 40 to rotate reciprocally.

Referring to fig. 5, the ejecting assembly 40 includes a rotating member 41 and an ejector rod 42, the rotating member 41 is rotatably connected in the fixing plate 14, one surface of the rotating member 41 facing the bearing plate 11 is provided with symmetrically arranged supporting surfaces 415, one end of the ejector rod 42 abuts against the supporting surfaces 415, and the other end of the ejector rod 42 penetrates through the bearing plate 11, so that the ejector rod 42 is ejected from the bearing plate 11 by the rotation of the rotating member 41, and the product 90 is ejected synchronously. Specifically, the rotating member 41 includes a rotating disc 411 and a spindle 412, and the spindle 412 is fixed at the axial center of the rotating disc 411 to drive the rotating disc 411 to rotate. The rotating disc 411 is accommodated in the rotating cavity 141, and the spindle 412 is rotatably connected to the fixed block 142. The spindle 412 is provided with a pin hole 413 along a radial direction, and the connecting pin 321 passes through the pin hole 413, so that the second connecting rod 32 drives the rotating disc 411 to rotate back and forth through the spindle 412. In one embodiment, the mandrel 412 is coaxially disposed with the locating pin 111.

The carousel 411 orientation the one side of loading board 11 is equipped with relative setting's backstop face 4111, backstop face 4111 is along carousel 411 radially sets up. One end of each stop surface 4111, which is far away from the bearing plate 11, extends along the circumferential direction of the rotating disc 411 to the direction close to the bearing plate 11 to form the symmetrically arranged support surfaces 415. One end of the top rod 42 abuts against the supporting surface 415, and the other end of the top rod passes through the fixing plate 14 and the bearing plate 11, so that the top rod 42 abutting against the supporting surface 415 is ejected out of the bearing plate 11 by the rotation of the rotating member 41, and the product 90 is ejected out.

The hole through which the top rod 42 passes through the carrier plate 11 is called a top hole 112, and the top holes 112 are symmetrically disposed on two sides of the positioning pin 111. The top hole 112 has a first catch (not shown) in the hole wall. The push rod 42 is provided with a second clamping portion 421, the second clamping portion 421 is convexly disposed on the periphery of the push rod 42, and the first clamping portion cooperates with the second clamping portion 421 to clamp a part of the push rod 42 in the push-out hole 112, so as to prevent the push rod 42 from falling.

The ejecting assembly 40 further includes a spring 43, the spring 43 is installed in the ejecting hole 112, one end of the spring 43 is fixed on the first holding portion, and the other end of the spring 43 is abutted against a protrusion on the peripheral side of the second holding portion 421, so as to cooperate with the supporting surface 415 to restore the ejecting rod 42 by an elastic force. In one embodiment, the ram 42 floats a distance of 2.27 mm.

The features and properties of the present application are described in further detail below with reference to specific examples.

Example 1

When the air source pressure is 0.6MPa, the torque T of the rotary air cylinder 22 is 2.2 N.m, and the eccentric wheelThe eccentricity L' is 11.25mm, the rotating output force arm L of the cylinder is 29.5mm, and the rotating output force of the cylinder is calculated by the formula 1:

equation 1:

when the cylinder 22 rotates 180 °, the push rods 42 reach the highest point, and since the push rods 42 are symmetrically arranged on the supporting surface 415, the thrust of a single push rod 42 is calculated by formula 2:

equation 2:

referring to fig. 6, from the force analysis of the rotating element 41, it can be seen that:

F₂＝F₁cos 30°＝32.29N

when the top rod 42 reaches the highest point, the horizontal force of the turntable 411 satisfies formula 3, and F is obtained by calculation₄＝111.77N。

Equation 3: f₂·L₁＝F₄·L₂

Referring to fig. 7, from the force analysis of the top rod 42, when the top rod reaches the highest point:

at this time, the compression amount of the spring 43 is 8.5 mm:

F_bullet＝0.98*8.5＝8.33N

Therefore, the thrust of the ejector rod is as follows:

F_{push away}＝F₆-F_Bullet＝297.36N

The friction force is not considered in the above calculation, and when the air source of the rotary air cylinder 22 is 0.6MPa, the thrust of the ejector rod 42 in the ejector device 100 to the product is about 297.36N, which can meet the actual use requirement.

In the above-mentioned ejection device 100, the rotary cylinder 22 drives the eccentric disc 211 to slide along the length direction of the sliding slot 311, so as to drive the two ends of the first connecting rod 31 to reciprocate along the extending direction. The second link 32 has one end hinged to the end of the first link 31 and the other end connected to the rotary member 41 through a connecting pin 321. One surface of the rotating member 41 facing the bearing plate 11 is circumferentially provided with a supporting surface 415, one end of the top rod 42 abuts against the supporting surface 415, and the other end of the top rod passes through the bearing plate 11, so that the top rod 42 is ejected or retracted from the bearing plate 11 through the reciprocating rotation of the rotating member 41, and the product 90 is ejected automatically and synchronously.

Although the embodiments of the present application have been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the embodiments of the present application.