Middle mold moving mechanism and rubber molding machine

Abstract

The present invention discloses a middle mold moving mechanism and a rubber molding machine, wherein the middle mold moving mechanism includes a mold shifting frame and a mold shifting device; the mold shifting frame includes a first frame and a second frame, which are separated and arranged horizontally. The first frame is used to install a middle mold assembly that can reciprocate in a vertical direction; the mold shifting device is installed on the second frame, and the mold shifting device includes a drive assembly and a pull plate. The drive assembly is installed on the second frame, and the drive assembly drives the pull plate to move horizontally. One end of the pull plate can be connected to the middle mold assembly to enable the middle mold moving mechanism to switch between a discharge state and a loading state. The technical solution of the present invention ensures that the middle mold moving mechanism maintains the stability of the frame when the middle mold moves, thereby improving the effect of mold closing or product discharge.

Description

Technical Field

[0001] The invention relates to the technical field of rubber automated production equipment, in particular to a middle mold moving mechanism and a rubber molding machine. Background Art

[0002] In the rubber production process, molding and vulcanization are the first steps. These steps require placing an empty mold into a rubber molding machine for injection molding and vulcanization. After the molding machine opens, a robot or human operator removes the rubber product. A rubber molding machine automates the mold closing, injection molding, mold opening, and product ejection processes.

[0003] The existing rubber molding machine is provided with a mold shifting device, which can be used to move the mold between the mold closing molding injection station and the product discharge station. The mold shifting device includes a frame and a driving cylinder. The frame connects the two stations and is provided with a guide rail. The middle mold of the mold can be moved on the guide rail, and the middle mold is driven by the driving cylinder to drive it to move between the two stations. The crossbeam connecting the two stations in the existing frame is an integrated structure. Since the middle mold is heavier, when the middle mold is moved between the two stations, the other end of the frame will be tilted, causing the position of the middle mold to shift. Not only will the tilting of the frame affect the alignment of the mold during the mold closing movement at the mold closing molding injection station, causing the mold closing movement to be stuck, but it will also affect the product discharge and make it unable to align with the ejection device, affecting the effect of mold closing or product discharge. Summary of the Invention

[0004] The main purpose of the present invention is to provide a middle mold moving mechanism, which aims to achieve the middle mold moving mechanism to maintain the stability of the frame when the middle mold moves, thereby improving the effect of mold closing or product discharge.

[0005] To achieve the above-mentioned purpose, the middle mold moving mechanism proposed in the present invention includes:

[0006] A mold transfer frame, the mold transfer frame comprising a first frame body and a second frame body, the first frame body and the second frame body being arranged horizontally, the first frame body being used to install a middle mold assembly that can reciprocate in a vertical direction; and

[0007] A mold shifting device, the mold shifting device is mounted on the second frame, the mold shifting device includes a driving assembly and a pull plate, the driving assembly is mounted on the second frame, the driving assembly drives the pull plate to move horizontally, and one end of the pull plate can be connected to the middle mold assembly;

[0008] The middle mold moving mechanism has a discharging state and a loading state. When the middle mold moving mechanism is in the loading state, the middle mold assembly is located on the first frame, and the middle mold assembly is separated from the pull plate when it moves vertically upward; when the middle mold moving mechanism is in the discharging state, the middle mold assembly moves vertically downward to connect with the pull plate, the driving assembly drives the pull plate to move horizontally, and the pull plate drives the middle mold assembly to move to the second frame.

[0009] Optionally, the middle mold assembly includes a middle mold and a support frame, the support frame supports the middle mold and drives the middle mold to move, and one end of the support frame can be connected to the pulling plate.

[0010] Optionally, a T-slot screw is provided at one end of the support frame, and the pull plate is provided with a coupling groove. The middle mold assembly is moved in the vertical direction to be on the same horizontal plane as the pull plate, and the T-slot screw is engaged with the coupling groove to enable the pull plate to be buckled with the middle mold assembly.

[0011] Optionally, there are multiple coupling grooves, and the multiple coupling grooves are arranged at intervals along an extension direction perpendicular to the second frame body, and the multiple coupling grooves are used to engage with the multiple T-slot screws provided on the support frame in a one-to-one correspondence.

[0012] Optionally, the first frame includes two horizontally arranged first beams, the second frame includes two horizontally arranged second beams, one end of a first beam is aligned with one end of a second beam, and both sides of the pull plate are slidingly connected to the two first beams or the two second beams respectively.

[0013] Optionally, the first frame further includes two first guide rails, which are respectively arranged on the opposite side surfaces of the two first beams, and the second frame further includes two second guide rails, which are respectively arranged on the opposite side surfaces of the two first beams, a first guide rail and a second guide rail are aligned, and the two sides of the pull plate slide along the two second guide rails respectively.

[0014] Optionally, the driving assembly includes a driving member, two chains and a transmission shaft, the driving member is connected to one side of the second beam away from the first frame, the driving member is drivingly connected to the transmission shaft, the two ends of the transmission shaft are respectively connected to one end of the chain, and the other end of the chain is respectively connected to one side of the pull plate, and the driving member drives the transmission shaft to rotate to drive the two chains and the pull plate to move.

[0015] Optionally, the second frame further includes a limiting member, the limiting member being provided on a side of the second crossbeam away from the first frame and located on a surface of a side opposite to the two second crossbeams;

[0016] And / or, the mold shifting device also includes a position detection sensor, which is arranged on the side of the second beam close to the first frame and is arranged in the direction of the mold shifting channel. The position detection sensor is used to detect the relative position of the pull plate and the middle mold assembly in the vertical direction.

[0017] The present invention also proposes a rubber molding machine, comprising the middle mold moving mechanism and the mold closing and molding device as described above, wherein the mold closing and molding device comprises an upper mold, a middle mold assembly, a lower mold and a mold closing drive assembly, wherein the middle mold assembly comprises a middle mold, and the middle mold assembly is located between the upper mold and the lower mold, and the mold closing drive assembly drives the lower mold to move to drive the middle mold to move back and forth in the vertical direction.

[0018] Optionally, the mold closing drive assembly includes a cylinder and a screw rod, the screw rod extends in the vertical direction, the cylinder drive is connected to one end of the screw rod, and the other end of the screw rod is connected to the side surface of the lower mold away from the middle mold, and the screw rod rotates to drive the lower mold to move in the vertical direction, and drive the middle mold to resist or separate from the first frame.

[0019] The technical solution of the present invention is to divide the mold shifting frame into a first frame and a second frame, the first frame and the second frame are separately arranged, the first frame and the second frame are horizontally arranged, the first frame is used to install a middle mold assembly that can move back and forth in the vertical direction, and the middle mold assembly can abut or detach from the first frame in the vertical direction. The middle mold moving mechanism also includes a mold shifting device, which is installed on the second frame. The mold shifting device includes a driving assembly and a pull plate, and the driving assembly drives the pull plate to move horizontally. When the middle mold assembly abuts the first frame in the vertical direction, the pull plate is connected to the middle mold assembly, and the driving assembly can be turned on to drive the pull plate to move and drive the middle mold assembly to the unloading state of the second frame, thereby realizing the unloading of the product from the middle mold; when the driving assembly is turned on to drive the pull plate to move in the reverse direction and drive the middle mold assembly to the loading state of the first frame, the middle mold and the lower mold are aligned, and the lower mold can drive the middle mold to move to perform the mold closing process. The mold moving frame is divided into two separate frames, and the pull plate is driven to move by the driving component. The pull plate is connected to the middle mold assembly to drive the middle mold assembly to move between the first frame, namely the mold closing station, and the second frame, namely the discharge station. The movement of the middle mold assembly between the two independent frames is achieved. The two independent frames can avoid the phenomenon that one end of the integrated frame is heavier and the other end is tilted, and the phenomenon that the mold closing injection station cannot be aligned during mold closing movement, which ensures that the middle mold moving mechanism maintains the stability of the frame when the middle mold moves, thereby improving the effect of mold closing or product discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of the middle mold moving mechanism of the present invention in the loading state;

[0022] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0024] Figure 4 This is a structural schematic diagram of the middle mold moving mechanism of the present invention in the discharging state;

[0025] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0026] Figure 6 It is a top view of the middle mold moving mechanism of the present invention in the discharging state.

[0027] Description of Figure Numbers:

[0028] Label name Label name 1 Middle mold moving mechanism 10 Transfer mold frame 11 The first frame 111 First beam 113 First guide rail 13 The second frame 131 Second crossbeam 133 Second guide rail 135 Limiting parts 30 Mold transfer device 31 Drive components 311 Drive parts 313 chain 315 transmission shaft 33 Pull plate 331 Joint groove 37 Position detection sensor 200 Mold clamping device 201 Middle mold components 2011 Middle mold 2013 Support frame 201a T-slot screws 202 lower die 203 Clamping drive components 2031 Cylinder 2033 Screw

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The present invention provides a middle mold moving mechanism 1.

[0034] In the embodiment of the present invention, Figures 1 to 6 As shown, the middle mold moving mechanism 1 includes a mold moving frame 10 and a mold moving device 30; the mold moving frame 10 includes a first frame 11 and a second frame 13, which are separated. The first frame 11 and the second frame 13 are horizontally arranged. The first frame 11 is used to install a middle mold assembly 201 that can reciprocate in the vertical direction; the mold moving device 30 is installed on the second frame 13, and the mold moving device 30 includes a driving component 31 and a pull plate 33. The driving component 31 is installed on the second frame 13, and the driving component 31 drives the pull plate 33 to move horizontally. One end of the pull plate 33 can be connected to the middle mold assembly 201; the middle mold moving mechanism has a discharging state and a loading state. When the middle mold moving mechanism is in the loading state, the middle mold assembly 201 is located on the first frame 11, and the middle mold assembly 201 moves vertically upward and separates from the pull plate 33; when the middle mold moving mechanism is in the discharging state, the middle mold assembly 201 moves vertically downward to the connection pull plate 33, the driving assembly 31 drives the pull plate 33 to move horizontally, and the pull plate 33 drives the middle mold assembly 201 to move to the second frame 13.

[0035] The middle mold moving mechanism 1 includes a mold moving frame 10 and a mold moving device 30, including a separate first frame 11 and a second frame 13. The first frame 11 and the second frame 13 are separately set. Compared with the integrated design of the mold moving frame 10, it can avoid the phenomenon that one end of the mold moving frame 10 is tilted due to the excessive weight of the middle mold assembly 201 when the middle mold assembly 201 is located on the mold moving frame 10. The mold moving frame 10 is divided into two frames, and the middle mold assembly 201 is located between the two frames for movement. Therefore, the mold moving frame 10 only needs the first frame 11 or the second frame 13 to bear the weight of the middle mold assembly 201, and the middle mold assembly 201 is arranged inside the horizontal projection of the first frame 11 or the second frame 13, and will not move out of the frame, thereby maintaining the supporting effect of the first frame 11 and the second frame 13 on the middle mold assembly 201 and avoiding the position displacement of the middle mold assembly 201. Furthermore, one end of the first frame 11 and one end of the second frame 13 are abutted, and a mold shifting channel is formed along the extension direction of the two. The middle mold assembly 201 can be located in the mold shifting channel and move between the first frame 11 and the second frame 13, thereby realizing the change of the position of the middle mold assembly 201 in the mold shifting frame 10.

[0036] The mold shifting device 30 includes a drive assembly 31 and a pull plate 33. The drive assembly 31 is mounted on the second frame 13. The pull plate 33 is connected to the middle mold assembly 201. The drive assembly 31 drives the pull plate 33 to move, thereby causing the middle mold assembly 201 to move, thereby achieving the effect of changing the position of the middle mold assembly 201 within the mold shifting frame 10. The middle mold moving mechanism 1 has a discharge state and a loading state. When the middle mold moving mechanism 1 is in the discharge state, the pull plate 33 is connected to the middle mold assembly 201. The drive assembly 31 drives the pull plate 33 to move and causes the middle mold assembly 201 to move to the second frame 13. When the middle mold moving mechanism 1 is in the loading state, the drive assembly 31 drives the pull plate 33 to move and causes the middle mold assembly 201 to move to the first frame 11. The middle mold assembly 201 is located in the first frame 11 and disengages from the pull plate 33 when moving vertically upward. When the middle mold moving mechanism 1 is in the discharging state, an ejection mechanism is provided on one side of the second frame 13, and the ejection mechanism is used to eject the rubber product on the middle mold assembly 201. When the middle mold moving mechanism 1 is in the loading state, it can be used for the glue injection process in conjunction with the mold closing and glue injection mechanism.

[0037] Furthermore, the drive assembly 31 can be a combination of a motor and a transmission member, or a combination of an air cylinder, an oil cylinder, and a connecting member. The transmission member can be a screw, a transmission shaft, a gear rack, a connecting shaft, a bearing, a roller, a chain, etc., that is, the motor can drive the gear to rotate, driving the rack to connect and move with the pull plate 33, or the motor can drive the connecting shaft to rotate, using a screw to connect and move with the pull plate 33, or the motor can drive the connecting transmission shaft, using a chain and gear to connect and move the pull plate 33. In all cases, the drive assembly 31 can drive the pull plate 33 to move, thereby achieving the effect of the pull plate 33 moving within the mold transfer channel.

[0038] Furthermore, the pull plate 33 is connected to the middle mold assembly 201. The connection between the two can be a removable connection, i.e., a snap-fit connection, a snap-fit connection, a key connection, a latch connection, etc., or a semi-fixed connection, i.e., a threaded connection, a mortise and tenon connection, a shaft-hole plug-in fit, etc. In this embodiment, since the middle mold assembly 201 needs to be located within the first frame 11 and move vertically to achieve the mold closing and glue injection process, the middle mold assembly 201 needs to be movably connected to the pull plate 33 to facilitate the connection and separation of the middle mold assembly 201 and the pull plate 33, thereby achieving the effect of rapid docking and quick disconnection.

[0039] The technical solution of the present invention is to divide the mold shifting frame 10 into a first frame 11 and a second frame 13. The first frame 11 and the second frame 13 are arranged separately and horizontally. The first frame 11 is used to mount a middle mold assembly 201 that can reciprocate in the vertical direction. The middle mold assembly 201 can abut against or separate from the first frame 11 in the vertical direction. The middle mold moving mechanism 1 also includes a mold shifting device 30, which is mounted on the second frame 13 and includes a drive assembly 31 and a pull plate 33. The drive assembly 31 drives the pull plate 33 to move horizontally. When the middle mold assembly 201 is vertically against the first frame 11, the pull plate 33 is connected to the middle mold assembly 201, and the opening drive assembly 31 can drive the pull plate 33 to move and drive the middle mold assembly 201 to move to the unloading state of the second frame 13, thereby realizing the product unloading of the middle mold assembly 201; when the opening drive assembly 31 drives the pull plate 33 to move in the reverse direction and drives the middle mold assembly 201 to move to the loading state of the first frame 11, the middle mold assembly 201 is aligned with the lower mold 202, and the lower mold 202 can drive the middle mold assembly 201 to move to perform the mold closing process. The mold moving frame 10 is divided into two separate frames, and the pull plate 33 is driven to move by the driving component 31. The pull plate 33 is connected to the middle mold component 201, and the middle mold component 201 is driven to move between the first frame 11, i.e., the mold closing station, and the second frame 13, i.e., the discharge station. The movement of the middle mold component 201 between the two independent frames is achieved. The two independent frames can avoid the phenomenon that one end of the integrated frame is heavier and the other end is tilted, and the phenomenon that the mold closing molding injection station cannot be aligned during the mold closing movement, thereby ensuring that the middle mold moving mechanism 1 maintains the stability of the frame when the middle mold component 201 moves, thereby improving the effect of mold closing or product discharge.

[0040] In one embodiment of the present invention, Figures 1 to 4 As shown, the middle mold assembly 201 includes a middle mold assembly 2011 and a support frame 2013 . The support frame 2013 supports the middle mold assembly 2011 and drives the middle mold assembly 201 to move. One end of the support frame 2013 can be connected to the pulling plate 33 .

[0041] The middle mold assembly 201 includes a middle mold assembly 2011 and a support frame 2013. The support frame 2013 supports the middle mold assembly 2011 and drives the movement of the middle mold assembly 2011. One end of the support frame 2013 can be connected to the pull plate 33. The connection between the support frame 2013 and the pull plate 33 can be a snap-fitting arrangement of two clips, a snap-fitting arrangement of a hook and a hook hole, or a snap-fitting arrangement of a clip and an opening. All of these arrangements enable the support frame 2013 to quickly connect and disconnect with the pull plate 33, enabling the middle mold assembly 201 to move between the first frame 11 and the second frame 13, and to switch between positions within the first frame 11 in a vertical direction. Furthermore, the support frame 2013 is provided to facilitate middle mold changes, i.e., mold changes during the injection molding process, and to facilitate the movement and mold changes of the lower mold 2011.

[0042] In one embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 6 As shown, a T-slot screw 201a is provided at one end of the support frame 2013, and the pull plate 33 is provided with a coupling groove 331. The middle mold assembly 201 is moved in the vertical direction to be on the same horizontal plane as the pull plate 33, and the T-slot screw 201a is engaged with the coupling groove 331 to make the pull plate 33 and the middle mold assembly 201 engage.

[0043] In this embodiment, a T-slot screw 201a is provided at one end of the support frame 2013, and a coupling groove 331 is provided at the pull plate 33. It is understood that another embodiment may be such that a coupling groove 331 is provided at one end of the support frame 2013, and a T-slot screw 201a is provided at the pull plate 33. In this embodiment, the coupling groove 331 is vertically extending through the pull plate 33, so that the T-slot screw 201a can be vertically inserted into the coupling groove 331. This allows the middle mold assembly 201 to move vertically within the first frame 11 to achieve the mold closing and glue injection process, thereby enabling the middle mold assembly 201 to separate from the pull plate 33 and engage with the upper mold simultaneously. Furthermore, the structure of the engagement slot 331 is formed by a combination of horizontally positioned and inwardly protruding stoppers. The stoppers can be used to limit the position of the T-slot screw 201a and apply force during movement. When the T-slot screw 201a is inserted into the engagement slot 331, the stoppers act as abutments against the transversely disposed protrusions of the T-slot screw 201a, thereby enabling the movement of the pull plate 33 to drive the movement of the middle mold assembly 201. Furthermore, the coordination between the engagement slot 331 and the T-slot screw 201a enables rapid docking and separation of the pull plate 33 and the middle mold assembly 201, ensuring that the movement of the pull plate 33 drives the movement of the middle mold assembly 201, and ensuring that the pull plate 33 effectively pulls the middle mold assembly 201 out.

[0044] In one embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 6 As shown, there are multiple engagement slots 331 , which are spaced apart along an extension direction perpendicular to the second frame 13 . The multiple engagement slots 331 are used to engage with the multiple T-slot screws 201 a provided on the support frame 2013 in a one-to-one corresponding manner.

[0045] There are multiple engagement slots 331, which are spaced apart along a direction perpendicular to the extension of the second frame 13. The multiple engagement slots 331 are configured to engage one-to-one with the multiple T-slot screws 201a provided on the support frame 2013. The arrangement of the multiple engagement slots 331 allows for corresponding engagement with the multiple T-slot screws 201a on the support frame 2013. Furthermore, the multiple engagement slots 331 are spaced apart along a direction perpendicular to the extension of the second frame 13, i.e., they extend along the horizontal extension direction of the pull plate 33. Therefore, since the multiple engagement slots 331 are located in the direction of movement of the pull plate, the pull plate 33 can simultaneously apply force to different positions of the support frame 2013, thereby maintaining the synchronous movement of different positions of the middle mold assembly 201 driven by the pull plate 33, thereby improving the stability and overall consistency of the movement of the middle mold assembly 201.

[0046] In one embodiment of the present invention, Figure 1 、 Figure 4 、 Figure 6 As shown, the first frame 11 includes two horizontally arranged first beams 111, and the second frame 13 includes two horizontally arranged second beams 131. One end of a first beam 111 is aligned with one end of a second beam 131, and both sides of the pull plate 33 are slidingly connected to the two first beams 111 or the two second beams 131 respectively.

[0047] The first frame 11 includes two horizontally arranged first beams 111, and the second frame 13 includes two horizontally arranged second beams 131. One end of a first beam 111 is aligned with one end of a second beam 131, and a mold shifting channel is formed between the two first beams 111 and the two second beams 131. The two sides of the pull plate 33 are slidingly connected to the two first beams 111 or the two second beams 131 respectively. The pull plate 33 is located on the first beams 111 and the second beams 131 and moves, maintaining the moving position of the pull plate 33 and ensuring the linearity of the mold shifting channel, thereby improving the stability and overall consistency of the movement of the middle mold assembly 201.

[0048] In one embodiment of the present invention, Figure 1 、 Figure 4 、 Figure 6As shown, the first frame 11 also includes two first guide rails 113, and the two first guide rails 113 are respectively arranged on the opposite side surfaces of the two first beams 111. The second frame 13 also includes two second guide rails 133, and the two first guide rails 113 are respectively arranged on the opposite side surfaces of the two first beams 111. A first guide rail 113 and a second guide rail 133 are aligned, and the two sides of the pull plate 33 slide along the two second guide rails 133 respectively.

[0049] The first guide rails 113 and the second guide rails 133 are arranged with the first frame 11 corresponding to the second frame 13. The two first guide rails 113 are respectively provided on the opposite sides of the two first crossbeams 111. One first guide rail 113 and one second guide rail 133 are aligned, and the two sides of the pull plate 33 slide along the two second guide rails 133. The first guide rails 113 maintain the movement direction of the middle mold assembly 201, guiding and maintaining the middle mold assembly 201. The second guide rails 133 maintain the movement direction of the pull plate 33 and the middle mold assembly 201, guiding and maintaining the same.

[0050] In one embodiment of the present invention, Figure 1 、 Figures 4 to 6 As shown, the driving assembly 31 includes a driving member 311, two chains 313 and a transmission shaft 315. The driving member 311 is connected to one side of the second beams 131 away from the first frame 11. The driving member 311 is driven and connected to the transmission shaft 315. The two ends of the transmission shaft 315 are respectively connected to one end of a chain 313. The other end of the chain 313 is respectively connected to one side of the pull plate 33. The driving member 311 drives the transmission shaft 315 to rotate to drive the two chains 313 and the pull plate 33 to move.

[0051] In this embodiment, one end of the transmission shaft 315 is connected to the output end of the driver 311, and the two ends are connected to the chain 313, respectively, for driving the movement of the chain 313. Preferably, the transmission shaft 315 is provided with a gear, and the chain 313 is meshed with the gear. The transmission shaft 315 drives the gear to rotate, thereby driving the chain 313 to rotate. The other end of the chain 313 is connected to the pull plate 33, achieving the effect of transmitting power from the driver 311 to the chain 313, thereby achieving the movement of the pull plate 33. Furthermore, the driver 311 can be a hydraulic motor, a stepping motor, etc.

[0052] Furthermore, chains 313 are connected to both ends of the transmission shaft 315, and the other ends of the chains 313 are respectively connected to one side of the pull plate 33. The driving member 311 drives the transmission shaft 315 to rotate, thereby driving the two chains 313 and the pull plate 33 to move. The connection of both ends of the pull plate 33 to the same transmission shaft 315 maintains synchronous transmission of both sides of the pull plate 33, achieving synchronous movement of the pull plate 33 as a whole within the second frame 13, and maintaining the synchronous movement of different positions of the middle mold assembly 201 driven by the pull plate 33, thereby improving the stability and overall consistency of the movement of the middle mold assembly 201.

[0053] In one embodiment of the present invention, Figure 1 、 Figures 4 to 6 As shown, the second frame 13 further includes a limiting member 135, which is disposed on a side of the second crossbeam 131 away from the first frame 11 and located on a surface of a side opposite to the two second crossbeams 131;

[0054] And / or, the mold shifting device 30 also includes a position detection sensor 37, which is arranged on the side of the second beam 131 close to the first frame 11 and is arranged in the direction of the mold shifting channel. The position detection sensor 37 is used to detect the relative position of the pull plate 33 and the middle mold assembly 201 in the vertical direction.

[0055] The second frame 13 further includes a position limiter 135, which is disposed on a side of the second crossbeam 131 away from the first frame 11 and located on a surface of the two second crossbeams 131 that faces each other. In this embodiment, the position limiter 135 limits the movement of the pull plate 33 and the middle mold assembly 201, preventing excessive movement of the pull plate 33 and maintaining the pull plate 33 within the second frame 13. The mold shifting device 30 further includes a position detection sensor 37, which is disposed on a side of the second crossbeam 131 that faces the mold shifting channel. In this embodiment, the position detection sensor 37 precisely controls its position to ensure horizontal alignment between the T-slot screw 201a and the engagement slot 331, thereby ensuring horizontal alignment between the pull plate 33 and the middle mold assembly 201.

[0056] The present invention also provides a rubber molding machine comprising a mold clamping and molding device 200 and a middle mold moving mechanism 1. The mold clamping and molding device 200 comprises an upper mold, a middle mold assembly 201, a lower mold 202, and a mold clamping drive assembly 203. The middle mold assembly 201 is positioned between the upper and lower molds 202. The mold clamping drive assembly 203 drives the lower mold 202 to move the middle mold 2011 back and forth in the vertical direction. The specific structure of the middle mold moving mechanism 1 is similar to that of the above-mentioned embodiments. Since the present rubber molding machine utilizes all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, and a detailed description thereof will not be repeated here.

[0057] In one embodiment of the present invention, Figure 1 、 Figure 4 As shown, the mold closing drive assembly 203 includes a cylinder 2031 and a screw rod 2033. The screw rod 2033 is extended in the vertical direction. The cylinder 2031 is driven and connected to one end of the screw rod 2033. The other end of the screw rod 2033 is connected to the side surface of the lower mold 202 away from the middle mold 2011. The screw rod 2033 rotates to drive the lower mold 202 to move in the vertical direction, and drive the middle mold 2011 to resist or separate from the first frame 11.

[0058] The mold clamping drive assembly 203 includes a cylinder 2031 and a screw 2033. The screw 2033 extends vertically. The cylinder 2031 is drivably connected to one end of the screw 2033. The other end of the screw 2033 is connected to a surface of the lower mold 202 facing away from the middle mold 2011. The screw 2033 rotates to drive the lower mold 202 vertically and to drive the middle mold 2011 to abut against or disengage from the first frame 11. In this embodiment, the drive method using the cylinder 2031 and the screw 2033 is characterized by high precision, simple structure, low friction, and long life, making it more stable and reliable. Furthermore, it has excellent impact resistance. When the screw 2033 is driven, it transmits low power and slow speed, thereby buffering and dispersing sudden impact loads, thereby preventing damage and malfunction of mechanical components.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A middle mold moving mechanism, characterized in that: include: A mold shifting frame (10), the mold shifting frame (10) comprising a first frame (11) and a second frame (13) which are separated, the first frame (11) and the second frame (13) being arranged horizontally, the first frame (11) being used to mount a middle mold assembly (201) which can reciprocate in a vertical direction, one end of the first frame (11) and one end of the second frame (13) being in contact with each other, and a mold shifting channel being formed along the extension direction of the two, the middle mold assembly (201) being able to be located in the mold shifting channel and move between the first frame (11) and the second frame (13); and A mold shifting device (30), the mold shifting device (30) is mounted on the second frame (13), the mold shifting device (30) comprises a driving component (31) and a pulling plate (33), the driving component (31) is mounted on the second frame (13), the driving component (31) drives the pulling plate (33) to move horizontally, and one end of the pulling plate (33) can be connected to the middle mold component (201); The first frame (11) includes two horizontally arranged first beams (111), the second frame (13) includes two horizontally arranged second beams (131), one end of the first beam (111) is aligned with one end of the second beam (131), and both sides of the pull plate (33) are respectively slidably connected to the two first beams (111) or the two second beams (131); the first frame (11) also includes two first guide rails (113), the two first guide rails (113) are respectively provided on the two opposite side surfaces of the two first beams (111), the second frame (13) also includes two second guide rails (133), the two second guide rails (133) are respectively provided on the two opposite side surfaces of the two second beams (131), and the first guide rail (1 13) is aligned with a second guide rail (133), both sides of the pull plate (33) slide along the two second guide rails (133), the driving assembly (31) includes a driving member (311), two chains (313) and a transmission shaft (315), the driving member (311) is connected to one side of one of the second cross beams (131) away from the first frame (11), the driving member (311) is drivingly connected to the transmission shaft (315), both ends of the transmission shaft (315) are drivingly connected to one end of the chain (313), the other end of the chain (313) is respectively connected to one side of the pull plate (33), and the driving member (311) drives the transmission shaft (315) to rotate, so as to drive the two chains (313) and the pull plate (33) to move; The middle mold moving mechanism has a discharge state and a loading state. When the middle mold moving mechanism is in the loading state, the middle mold assembly (201) is located on the first frame (11), and the middle mold assembly (201) is separated from the pull plate (33) when it moves vertically upward. When the middle mold moving mechanism is in the discharge state, the middle mold assembly (201) moves vertically downward to connect with the pull plate (33), the driving assembly (31) drives the pull plate (33) to move horizontally, and the pull plate (33) drives the middle mold assembly (201) to move to the second frame (13).

2. The middle mold moving mechanism according to claim 1, characterized in that: The middle mold assembly (201) comprises a middle mold (2011) and a support frame (2013), wherein the support frame (2013) supports the middle mold (2011) and drives the middle mold (2011) to move, and one end of the support frame (2013) can be connected to the pulling plate (33).

3. The middle mold moving mechanism according to claim 2, characterized in that: One end of the support frame (2013) is provided with a T-slot screw (201a), the pull plate (33) is provided with a coupling groove (331), the middle mold assembly (201) is moved in a vertical direction to be located at the same horizontal plane as the pull plate (33), and the T-slot screw (201a) is engaged with the coupling groove (331) to enable the pull plate (33) to be buckled with the middle mold assembly (201).

4. The middle mold moving mechanism according to claim 3, characterized in that: There are a plurality of the engagement grooves (331), and the plurality of engagement grooves (331) are arranged at intervals along an extension direction perpendicular to the second frame body (13). The plurality of engagement grooves (331) are used to engage with a plurality of the T-slot screws (201a) provided on the support frame (2013) in a one-to-one corresponding manner.

5. The middle mold moving mechanism according to claim 4, characterized in that: The second frame (13) further includes a limiting member (135), wherein the limiting member (135) is provided on a side of the second crossbeam (131) away from the first frame (11) and is located on a side surface opposite to the two second crossbeams (131); And / or, the mold shifting device (30) further includes a position detection sensor (37), the position detection sensor (37) being arranged on a side of the second crossbeam (131) close to the first frame (11) and arranged in the direction of the mold shifting channel, the position detection sensor (37) being used to detect the relative position of the pull plate (33) and the middle mold assembly (201) in the vertical direction.

6. A rubber molding machine, characterized in that: The invention comprises a middle mold moving mechanism and a mold clamping and molding device (200) as described in any one of claims 1 to 5, wherein the mold clamping and molding device (200) comprises an upper mold, a middle mold assembly (201), a lower mold (202) and a mold clamping drive assembly (203), wherein the middle mold assembly (201) comprises a middle mold (2011), the middle mold assembly (201) is located between the upper mold and the lower mold (202), and the mold clamping drive assembly (203) drives the lower mold (202) to move so as to drive the middle mold (2011) to move back and forth in a vertical direction.

7. The rubber molding machine according to claim 6, wherein The mold closing drive assembly (203) comprises an oil cylinder (2031) and a screw rod (2033), wherein the screw rod (2033) is extended in a vertical direction, the oil cylinder (2031) is drivingly connected to one end of the screw rod (2033), and the other end of the screw rod (2033) is connected to a side surface of the lower mold (202) facing away from the middle mold (2011), and the screw rod (2033) rotates to drive the lower mold (202) to move in a vertical direction, and drives the middle mold (2011) to abut against or separate from the first frame (11).

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