阅读说明：本技术 开模锁紧安全装置及定型机 (Die sinking locking safety device and forming machine ) 是由 欧阳天濠 吴姣平 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种开模锁紧安全装置,包括：第一连接件,设置有锁扣部；第二连接件,设置有与锁扣部扣合的锁扣槽；驱动装置,与第一连接件和第二连接件中的其一传动连接以驱动其转动而带动锁扣部与锁扣槽扣合或脱离扣合,以使第一连接件和第二连接件连接在一起或脱离连接。此结构简单实用,并且连接可靠性高,便于推广应用。本发明还公开了一种定型机,因采用了上述的开模锁紧安全装置,可在开模时实现中模板和上模板之间的可靠锁固,从而防止中模板往下掉落,减小了安全隐患,安全性能更高。(The invention discloses a die sinking and locking safety device, which comprises: a first connecting member provided with a locking portion; the second connecting piece is provided with a lock catch groove buckled with the lock catch part; and the driving device is in transmission connection with one of the first connecting piece and the second connecting piece to drive the first connecting piece and the second connecting piece to rotate so as to drive the locking part to be locked with or unlocked from the locking groove, so that the first connecting piece and the second connecting piece are connected together or disconnected. The structure is simple and practical, the connection reliability is high, and the popularization and the application are convenient. The invention also discloses a setting machine, and the mould opening and locking safety device is adopted, so that the reliable locking between the middle template and the upper template can be realized during mould opening, the middle template is prevented from falling down, the potential safety hazard is reduced, and the safety performance is higher.)

1. Die sinking locking safety device, its characterized in that includes:

a first connecting member provided with a locking portion;

the second connecting piece is provided with a lock catch groove buckled with the lock catch part;

and the driving device is in transmission connection with one of the first connecting piece and the second connecting piece to drive the first connecting piece and the second connecting piece to rotate so as to drive the lock catch part to be buckled with or separated from the lock catch groove, so that the first connecting piece and the second connecting piece are correspondingly connected together or separated from each other.

2. A mold opening and locking safety device as claimed in claim 1, wherein the second connecting member further has an escape notch communicating with the locking groove and receiving the locking portion;

when the lock catch part is buckled with the lock catch groove, the lock catch part moves to the lock catch groove from the avoiding notch;

when the lock catch part is separated from the lock catch groove, the lock catch part moves to the avoiding notch from the lock catch groove.

3. The open mold locking safety device of claim 2, wherein the first connecting member has a first center line, the number of the locking portions is at least two, and the locking portions are spaced around the first center line;

the second connecting piece is provided with a second central line, the number of the lock catch grooves is at least two, each lock catch groove is arranged around the second central line at intervals, an avoidance notch is arranged between every two adjacent lock catch grooves, and each avoidance notch is communicated with each lock catch groove in a one-to-one correspondence manner;

each locking part is in one-to-one correspondence and can be buckled with each locking groove, and each locking part is in one-to-one correspondence and can be accommodated in each avoidance notch.

4. The mold opening locking safety device of claim 1, wherein the locking portion has a first side surface, a second side surface and a first connecting surface, the first side surface is located between the second side surface and the first connecting surface, and the first connecting surface is opposite to the second side surface;

the lock catch groove is provided with a third side surface, a fourth side surface and a second connecting surface, the third side surface is positioned between the fourth side surface and the second connecting surface, and the second connecting surface is opposite to the fourth side surface of the second connecting surface;

when the lock catch part is buckled with the lock catch groove, the third side face is opposite to and separated from the first side face, the fourth side face of the second connecting face is opposite to and separated from the second side face, and the second connecting face is abutted against the first connecting face.

5. The open mold locking safety device of claim 1, wherein the driving device comprises a linear driving mechanism, a swing arm, a transmission shaft and a guide sleeve;

two ends of the swing arm are respectively pivoted on the linear driving mechanism and the transmission shaft, the transmission shaft is connected with one of the first connecting piece and the second connecting piece, and the swing arm is driven by the linear driving mechanism to swing so as to drive the transmission shaft to rotate;

the guide sleeve is fixedly assembled when in use, and the guide sleeve is sleeved on the transmission shaft.

6. An open mold locking safety device as claimed in claim 5, wherein at least two rolling bearings are provided between the guide sleeve and the drive shaft, the rolling bearings being spaced apart.

7. The open mold locking safety device of claim 5, wherein the linear actuator is a pneumatic cylinder.

8. The setting machine is characterized by comprising a setting machine body and the die sinking and locking safety device as claimed in any one of claims 1 to 7, wherein the die sinking and locking safety device is arranged on the setting machine body.

9. The setter of claim 8, wherein the setter body includes:

a body;

the upper template is arranged on the machine body and is provided with a die opening and closing driving mechanism;

the lower template is arranged on the machine body and is separated from the upper template;

the middle template is movably arranged on the machine body, is positioned between the upper template and the lower template and is connected with the mold opening and closing driving mechanism, a mold cavity is arranged between the middle template and the lower template, and a heating plate is arranged on the middle template;

the driving device is arranged on the upper template, and one of the first connecting piece and the second connecting piece which is not connected with the driving device is arranged on the middle template.

10. The molding machine as claimed in claim 9, wherein the driving device is disposed on a side of the upper mold plate away from the middle mold plate, one of the first connecting member and the second connecting member is disposed on a side of the middle mold plate close to the upper mold plate, and an output end of the driving device extends to close to the middle mold plate to enable the locking part and the locking groove to be locked or unlocked.

Technical Field

The invention relates to the technical field of mold opening and locking of molds, in particular to a mold opening and locking safety device and a setting machine.

Background

The paper pulp molding is a stereo paper making technology, which takes waste paper as raw material and is prepared into a paper pulp molding product through the manufacturing process steps of raw material pulping, burdening, compression molding, drying and shaping.

At present, the compression molding, drying and shaping process steps of the pulp molding product are all completed in a shaping machine, the shaping machine mainly comprises a machine body, an upper template, a middle template, a lower template and a mold opening and closing driving mechanism, the upper template and the lower template are fixedly arranged on the machine body and are separated by a distance, the middle template is movably arranged on the machine body and is positioned between the upper template and the lower template, the mold opening and closing driving mechanism is arranged on the upper template and is in transmission connection with the middle template, and the middle template is driven by the mold opening and closing driving mechanism to move relative to the lower template so as to realize mold opening or mold closing.

However, in practical application, along with the increase of service time, the air leakage phenomenon easily occurs to the mould actuating mechanism that opens and shuts, leads to having the risk that the well template can't reliably lock solid and drop down with the cope match-plate pattern after the mould is opened, and the potential safety hazard is great. Therefore, there is a need for an improved structure of the prior mold opening and locking safety device.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a die sinking and locking safety device with higher connection reliability and a setting machine capable of reducing potential safety hazards.

The purpose of the invention is realized by adopting the following technical scheme:

die sinking locking safety device includes:

a first connecting member provided with a locking portion;

the second connecting piece is provided with a lock catch groove buckled with the lock catch part;

and the driving device is in transmission connection with one of the first connecting piece and the second connecting piece so as to drive the first connecting piece and the second connecting piece to rotate to drive the lock catch part to be buckled or unbuckled with the lock catch groove.

Furthermore, an avoiding gap which is communicated with the lock catch groove and can contain the lock catch part is also arranged on the second connecting piece;

when the lock catch part is buckled with the lock catch groove, the lock catch part moves to the lock catch groove from the avoiding notch;

when the lock catch part is separated from the lock catch groove, the lock catch part moves to the avoiding notch from the lock catch groove.

Furthermore, the first connecting piece is provided with a first central line, the number of the lock catch parts is at least two, and the lock catch parts are arranged around the first central line at intervals;

the second connecting piece is provided with a second central line, the number of the lock catch grooves is at least two, each lock catch groove is arranged around the second central line at intervals, an avoidance notch is arranged between every two adjacent lock catch grooves, and each avoidance notch is communicated with each lock catch groove in a one-to-one correspondence manner;

each locking part is in one-to-one correspondence and can be buckled with each locking groove, and each locking part is in one-to-one correspondence and can be accommodated in each avoidance notch.

Furthermore, a first side surface, a second side surface and a first connecting surface are arranged on the lock catch part, the first side surface is positioned between the second side surface and the first connecting surface, and the first connecting surface is opposite to the second side surface;

the lock catch groove is provided with a third side surface, a fourth side surface and a second connecting surface, the third side surface is positioned between the fourth side surface and the second connecting surface, and the second connecting surface is opposite to the fourth side surface of the second connecting surface;

when the lock catch part is buckled with the lock catch groove, the third side face is opposite to and separated from the first side face, the fourth side face of the second connecting face is opposite to and separated from the second side face, and the second connecting face is abutted against the first connecting face.

Furthermore, the driving device comprises a linear driving mechanism, a swing arm, a transmission shaft and a guide sleeve;

two ends of the swing arm are respectively pivoted on the linear driving mechanism and the transmission shaft, the transmission shaft is connected with one of the first connecting piece and the second connecting piece, and the swing arm is driven by the linear driving mechanism to swing so as to drive the transmission shaft to rotate;

the guide sleeve is fixedly assembled when in use, and the guide sleeve is sleeved on the transmission shaft.

Furthermore, at least two rolling bearings are arranged between the guide sleeve and the transmission shaft, and the rolling bearings are separated.

Further, the linear driving mechanism is an air cylinder.

Further, the length extending direction of the transmission shaft is perpendicular to the moving direction of the output end of the air cylinder.

Furthermore, be provided with spacing portion on the transmission shaft, the one end of uide bushing with spacing portion offsets, and the other end with can dismantle the setting and be in epaxial retaining member of transmission offsets.

The setting machine comprises a setting machine body and the die opening locking safety device, wherein the die opening locking safety device is arranged on the setting machine body.

Further, the forming machine body includes:

a body;

the upper template is arranged on the machine body and is provided with a die opening and closing driving mechanism;

the lower template is arranged on the machine body and is separated from the upper template;

the middle template is movably arranged on the machine body, is positioned between the upper template and the lower template and is connected with the mold opening and closing driving mechanism, a mold cavity is arranged between the middle template and the lower template, and a heating plate is arranged on the middle template;

the driving device is arranged on the upper template, and one of the first connecting piece and the second connecting piece which is not connected with the driving device is arranged on the middle template.

Furthermore, the driving device is arranged on one side surface of the upper template far away from the middle template, one of the first connecting piece and the second connecting piece is arranged on one side surface of the middle template close to the upper template, and the output end of the driving device extends to the position close to the middle template, so that the locking part and the locking groove are locked or unlocked.

Compared with the prior art, the invention has the beneficial effects that:

when the die sinking locking safety device is used, the driving device and the other one of the first connecting piece and the second connecting piece are respectively fixedly assembled on the two working machines, when the two working machines need to be locked together, the driving device drives one of the first connecting piece and the second connecting piece to rotate along a first direction so as to enable the locking part to be locked with the locking groove, and when the two working machines need to be unlocked, the driving device drives one of the first connecting piece and the second connecting piece to rotate along a second direction opposite to the first direction so as to drive the locking part to be disengaged from the locking groove and be locked with the locking groove;

according to the setting machine, the die opening and locking safety device is adopted, so that the middle die plate and the upper die plate can be reliably locked when the die is opened, the middle die plate is prevented from falling down, potential safety hazards are reduced, and the safety performance is higher.

Drawings

FIG. 1 is a schematic structural view of a mold opening and locking safety device according to the present invention;

FIG. 2 is a schematic view of the internal structure of the mold opening and locking safety device of the present invention;

FIG. 3 is a schematic structural view of a first connecting member in the open mold locking safety device of the present invention;

fig. 4 is a schematic structural view of a second connecting member in the open-mold locking safety device of the present invention at a first viewing angle;

fig. 5 is a schematic structural diagram of a second connecting member in the open-mold locking safety device according to the present invention at a second viewing angle;

fig. 6 is a schematic structural diagram of the setting machine of the present invention.

In the figure: 10. a first connecting member; 11. a base; 111. a first connection hole; 12. connecting columns; 121. a locking part; 20. a second connecting member; 21. a locking groove; 211. a third side; 212. a fourth side; 213. a second connection face; 22. avoiding the notch; 23. a second connection hole; 24. a third connection hole; 30. a drive device; 31. a cylinder; 32. swinging arms; 33. a drive shaft; 331. a limiting part; 34. a guide sleeve; 35. a rolling bearing; 40. a locking member; 50. a fastener; 60. locking the nut; 100. a body; 200. a lower template; 300. a middle template; 400. mounting a template; 500. a mold opening and closing driving mechanism; 600. a female die; 700. a male die; 800. heating the plate.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The present invention is further described with reference to the accompanying drawings and specific embodiments, 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.

Referring to fig. 1-2, there is shown an open-mold locking safety device according to a preferred embodiment of the present invention, including: a first connecting member 10 provided with a locking portion 121; a second connector 20 provided with a locking groove 21 engaged with the locking part 121; the driving device 30 is in transmission connection with one of the first connecting piece 10 and the second connecting piece 20 to drive the first connecting piece 10 and the second connecting piece 20 to rotate so as to drive the locking portion 121 to be locked with or unlocked from the locking groove 21, so that the first connecting piece 10 and the second connecting piece 20 are connected together or disconnected.

When the die sinking and locking safety device is used, the driving device 30 and the other one of the first connecting piece 10 and the second connecting piece 20 can be respectively and fixedly assembled on the two working machines, when the two working machines need to be locked together, the driving device 30 drives one of the first connecting piece 10 and the second connecting piece 20 to rotate along a first direction so as to enable the locking part 121 to be locked with the locking groove 21, and when the two working machines need to be unlocked, the driving device 30 drives one of the first connecting piece 10 and the second connecting piece 20 to rotate along a second direction opposite to the first direction so as to drive the locking part 121 to be unlocked with the locking groove 21.

As a preferred embodiment of the open mold locking safety device of the present invention, it may further have the following additional technical features:

referring to fig. 4-5, in the present embodiment, the second connecting member 20 is further provided with an avoiding gap 22 communicated with the locking groove 21 and capable of accommodating the locking portion 121; when the locking part 121 is locked with the locking groove 21, the locking part 121 moves to the locking groove 21 from the relief notch 22; when the locking portion 121 is disengaged from the locking groove 21, the locking portion 121 moves from the locking groove 21 to the relief notch 22. The structure design can make the moving stroke of the output end of the driving device 30 shorter, the driving is more efficient, and meanwhile, the structure between the first connecting piece 10 and the second connecting piece 20 is more compact, the miniaturization design of the die sinking locking safety device is facilitated, and the installation is more convenient. In this embodiment, the first connecting member 10 has a first central line, at least two locking portions 121 are provided, and each locking portion 121 is disposed around the first central line at intervals; the second connecting piece 20 is provided with a second central line, the number of the lock catch grooves 21 is at least two, each lock catch groove 21 is arranged around the second central line at intervals, an avoidance gap 22 is arranged between every two adjacent lock catch grooves 21, and each avoidance gap 22 is communicated with each lock catch groove 21 in a one-to-one correspondence manner; the locking portions 121 are correspondingly engaged with the locking grooves 21, and the locking portions 121 are correspondingly received in the avoiding notches 22. This structure design can make the connection reliability between the first connecting piece 10 and the second connecting piece 20 higher, in other embodiments, the lock latch portion 121, the lock latch groove 21 and the relief notch 22 can be one, and those skilled in the art can flexibly select and use the structure according to the needs, which is not limited to this.

More specifically, in this embodiment, the locking portions 121, the locking grooves 21 and the avoiding notches 22 are four, each locking portion 121 is uniformly distributed around the first central line of the first connecting piece 10, and each locking groove 21 is uniformly distributed around the second central line of the second connecting piece 20, so that the structure can ensure that the connection reliability between the first connecting piece 10 and the second connecting piece 20 is high, and the structure is simple and practical, and is convenient to manufacture and use.

In the present embodiment, the locking slots 21 are communicated with each other for convenient manufacture and use, and in other embodiments, the locking slots 21 may be separated from each other, and those skilled in the art can flexibly select the locking slots according to the needs, but not limited thereto.

In this embodiment, the locking portion 121 has a first side surface, a second side surface and a first connecting surface, the first side surface is located between the second side surface and the first connecting surface, and the first connecting surface is opposite to the second side surface; the locking groove 21 is provided with a third side 211, a fourth side 212 and a second connecting surface 213, the third side 211 is located between the fourth side 212 and the second connecting surface 213, and the second connecting surface 213 is opposite to the fourth side 212 of the second connecting surface 213; when the locking portion 121 is locked with the locking groove 21, the third side 211 is opposite to and spaced apart from the first side, the fourth side 212 of the second connection surface 213 is opposite to and spaced apart from the second side, and the second connection surface 213 is abutted against the first connection surface. So, make between hasp portion 121 and the hasp groove 21 both only connect and the lock together through first connection face and second connection face 213 looks butt, keep being separated by between the remaining side, can do benefit to and reduce the cooperation impact between hasp portion 121 and the hasp groove 21 both, reduce coefficient of friction, alleviate drive arrangement 30's load greatly, simultaneously, make the cooperation between hasp portion 121 and the hasp groove 21 both more smooth and easy, high-efficient.

In the present embodiment, the driving device 30 is in transmission connection with the second connecting member 20, and in other embodiments, the driving device 30 may be in transmission connection with the first connecting member 10.

As shown in fig. 3, in the present embodiment, the first connector 10 includes a base 11 and a connecting column 12, the base 11 is used for connecting with a working machine (such as a center form 300), the connecting column 12 is disposed on the base 11, and the locking portion 121 is disposed on a side surface of the connecting column 12.

More specifically, the base 11 is of an approximately triangular structure, the connecting column 12 is vertically arranged at a corner of the base 11, a limiting groove (not shown in the figure) matched with a limiting column on the working machine is arranged at the bottom of the corner, the other two corners of the base 11 are provided with first connecting holes 111 which penetrate through the corner, and each first connecting hole 111 is connected with the working machine through a connecting piece such as a screw, so that the first connecting piece 10 can be reliably connected with the working machine. In other embodiments, the shape of the base 11 and the distribution of the connecting columns 12 can be flexibly configured according to the requirement, but are not limited thereto.

In this embodiment, the connection post 12 is a cylindrical structure, and the locking portions 121 are distributed on the circumferential surface of the connection post 12, so that more locking portions 121 can be more conveniently arranged, and the manufacture and use are more convenient. Of course, in other embodiments, the shape of the connecting column 12 can be triangular or rectangular or polygonal as desired, but is not limited thereto.

Referring to fig. 4-5, in the present embodiment, the second connecting member 20 is provided with a second connecting hole 23 and a third connecting hole 24 communicated with the second connecting hole 23, the third connecting hole 24 penetrates through two opposite sides of the second connecting member 20, the second connecting hole 23 extends along the direction of the second central line, the extending direction of the third connecting hole 24 is perpendicular to the extending direction of the second connecting hole 23, the output end of the driving device 30 extends into the second connecting hole 23, the output end of the driving device 30 is provided with a fourth connecting hole opposite to and communicated with the third connecting hole 24, and the second connecting member 20 and the output end of the driving device 30 are connected with the third connecting hole 24 and the fourth connecting hole through a fastener 50 for locking together. The fastening member 50 may be a bolt or a connecting rod structure with nuts at two ends, which can be flexibly selected by those skilled in the art according to the needs, but is not limited thereto.

In this embodiment, the output end of the driving device 30 is further provided with a lock nut 60, one end of the second connecting member 20 is locked with the lock nut 60, and the lock nut 60 and the fastening member 50 are used to axially limit the second connecting member 20, so that the connection between the second connecting member 20 and the driving device 30 is more reliable, and the locking portion 121 can be smoothly matched with the locking groove 21.

With continued reference to fig. 1-2, in the present embodiment, the driving device 30 includes a linear driving mechanism, a swing arm 32, a transmission shaft 33, and a guide sleeve 34; two ends of the swing arm 32 are respectively pivoted on the linear driving mechanism and the transmission shaft 33, the transmission shaft 33 is connected with one of the first connecting piece 10 and the second connecting piece 20, and the swing arm 32 is driven by the linear driving mechanism to swing so as to drive the transmission shaft 33 to rotate; the guide sleeve 34 is fixedly assembled when in use (for example, when being applied to a setting machine, the guide sleeve 34 is fixed to an upper template 400 of the setting machine), and the guide sleeve 34 is sleeved on the transmission shaft 33. The structure can convert the linear motion into the rotary motion to drive one of the first connecting piece 10 and the second connecting piece 20 to rotate, the arrangement of the swing arm 32 reduces the load of the linear driving mechanism, the smooth and stable operation of the die sinking locking safety device can be ensured, the working reliability is higher, in addition, the arrangement of the guide sleeve 34 can play a role in guiding and limiting the transmission shaft 33, and the smooth matching of the locking part 121 and the locking groove 21 is ensured. In other embodiments, the driving device 30 may be a rotating motor, which can be flexibly selected by those skilled in the art according to the needs, but is not limited thereto.

In this embodiment, two rolling bearings 35 are disposed between the guide sleeve 34 and the transmission shaft 33, and each rolling bearing 35 is separated from each other, so that rolling friction is generated between the transmission shaft 33 and the guide sleeve 34, and the transmission shaft 33 rotates more smoothly, which is beneficial to further reducing the load of the linear driving mechanism, so that the mold opening locking safety device operates more smoothly and stably, the situation that the first connecting piece 10 and the second connecting piece 20 cannot be unlocked is avoided, and meanwhile, the service life is longer. The rolling bearing 35 is a tapered roller bearing, and of course, the rolling bearing 35 may also be a deep groove ball bearing, a needle bearing, or other common rolling bearings 35, and those skilled in the art may select the rolling bearing according to the needs, but are not limited thereto.

In this embodiment, the linear driving mechanism is the cylinder 31, which has simple and practical structure and low cost, and makes the whole structure of the mold opening locking safety device more compact and more convenient for maintenance. In other embodiments, the linear driving mechanism may be a linear motor, which can be flexibly selected by those skilled in the art according to the requirement, but is not limited thereto.

In this embodiment, the length extending direction of the transmission shaft 33 is perpendicular to the moving direction of the output end of the cylinder 31, so that the mold opening and locking safety device has a more compact overall structure and is more convenient to install.

As shown in fig. 2, in the present embodiment, the transmission shaft 33 is provided with a limiting portion 331, one end of the guide sleeve 34 abuts against the limiting portion 331, and the other end abuts against the locking member 40 detachably disposed on the transmission shaft 33, so that the guide sleeve 34 is axially limited and is reliably assembled on the transmission shaft 33.

Referring to fig. 6, the invention further provides a setting machine, which comprises a setting machine body and the die opening and locking safety device, wherein the die opening and locking safety device is arranged on the setting machine body.

According to the setting machine, due to the adoption of the die opening and locking safety device, reliable locking between the middle die plate 300 and the upper die plate 400 can be realized during die opening, so that the middle die plate 300 is prevented from falling down, potential safety hazards are reduced, and the safety performance is higher.

In this embodiment, the body of the setting machine includes a machine body 100, a lower template 200, a middle template 300 and an upper template 400; the lower template 200 is fixedly arranged on the machine body 100 and is arranged at a distance from the upper template 400; the upper mold plate 400 is fixedly arranged on the machine body 100 and is provided with a mold opening and closing driving mechanism 500; the middle template 300 is movably arranged on the machine body 100 and positioned between the upper template 400 and the lower template 200, is connected with the mold opening and closing driving mechanism 500 and is driven by the mold opening and closing driving mechanism 500 to open and close the mold, a mold cavity is arranged between the middle template 300 and the lower template 200, and a heating plate 800 is arranged on the middle template 300; the driving means 30 is provided on the upper mold plate 400, and one of the first and second connectors 10 and 20, to which the driving means 30 is not connected, is provided on the middle mold plate 300. The structure mounts the driving device 30 on the upper mold 400, so that the driving device 30 is relatively far away from the heating plate 800, and the usability and the service life of the driving device 30 are both higher.

In this embodiment, the driving device 30 is disposed on a side of the upper mold plate 400 away from the middle mold plate 300, the second connecting member 20 is connected to the driving device 30, the first connecting member 10 is disposed on a side of the middle mold plate 300 close to the upper mold plate 400, and the output end of the driving device 30 extends to be close to the middle mold plate 300, so that the locking portion 121 and the locking groove 21 are locked or unlocked. This structure makes drive arrangement 30 more away from hot plate 800, can make drive arrangement 30's performance and life higher, and simultaneously, the side of cope match-plate pattern 400 keeping away from well template 300 has the enough big space that is used for holding drive arrangement 30, consequently, can supply to choose for use bigger drive arrangement 30 to make drive arrangement 30's performance more excellent, operational reliability is higher. In other embodiments, the first connecting member 10 may be connected to the driving device 30, and the second connecting member 20 is disposed at a side of the middle mold plate 300 close to the upper mold plate 400, which can be flexibly selected by those skilled in the art according to the needs, but is not limited thereto.

In this embodiment, the mold opening and closing driving mechanism 500 is specifically a gas-liquid pressure cylinder, and has a simple and practical structure, and is convenient to maintain.

More specifically, in the present embodiment, the cylinder 31 and the guide sleeve 34 are fixed to the upper mold 400, and the base 11 of the first connecting member 10 is fixed to the middle mold 300.

More specifically, in the present embodiment, the lower mold plate 200 is provided with a female mold 600 and another heating plate 800, the middle mold plate 300 is provided with a male mold 700, and the male mold 700 and the female mold 600 enclose the cavity.

In practice, when the setting machine is a setting machine for pulp molded products, the cylinder diameter of the cylinder 31 can be 50mm, the maximum thrust F 'of the cylinder 31 with the cylinder diameter of 50mm is 98.2Kgf according to the air source pressure of 5Kgf/cm ^2, the weight Max650Kg of the middle template 300 and the setting machine assembly is obtained, because the rotating shaft is supported by a pair of tapered roller bearings, the rolling friction coefficient is 0.1, the arm length of the swing arm 32 is 130mm, and the arm length of the second connecting piece 20 is specifically 17.5mm, the load F' -650 multiplied by 0.1 ÷ (130 ÷ 17.5) ~ 8.75Kgf borne by the cylinder 31 is obtained, and because the load F '< the thrust F' of the cylinder 31, the die opening and locking safety device can meet the use safety requirements of machinery and can prolong the service life.

It can be understood that the open mold locking safety device of the invention can be applied to other suitable molds besides the setting machine.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention should not be 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.