Automatic push-pull steering wheel type die changing trolley

Abstract

The invention discloses an automatic push-and-pull steering wheel type die changing trolley, and relates to the technical field of die changing trolleys, the automatic push-and-pull steering wheel type die changing trolley comprises a trolley frame, symmetrically arranged die changing tables are installed at the top of the trolley frame, the die changing tables are used for bearing dies, and die changing rollers are installed on the inner walls of the die changing tables; and the die changing roller is used for guiding the die so as to correct the die changing track. According to the automatic push-and-pull steering wheel type mold changing trolley, through the arrangement of the mold changing table, a mold to be changed is borne, the mold changing roller and the pushing centering device are used in cooperation, the mold can move towards the middle in the changing process, track correction is conducted on the mold in the mold changing process through the arrangement of the mold changing roller, the overall efficiency is higher, and in addition, the mold changing efficiency is improved. By means of the arrangement of the anti-collision device, limiting and protection can be formed in the mold transferring process or the mold changing process, the situation of abrasion caused by collision between the mold and the mold changing table is prevented, and therefore the mold changing efficiency and safety of the mold are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of mold changing trolleys, in particular to an automatic push-pull steering wheel type mold changing trolley. Background Art

[0002] The automatic push-pull steering wheel type mold changing trolley is a device used to quickly change molds. It is commonly used in manufacturing industries that require frequent mold changes, such as plastic injection molding, metal stamping and other industries. The automatic push-pull steering wheel type mold changing trolley usually has an integrated drive system, steering wheel, clamping mechanism, electric components and control system, which can push the mold out of or pull it into the machine, reduce manual intervention, and increase the mold changing speed. Depending on the model, the mold changing trolley has different carrying capacities, some of which can reach several tons. The mold changing trolley can significantly reduce the mold changing time, improve production efficiency, and reduce the risk of manual operation.

[0003] When using a mold changing trolley to replace the mold, the mold is heavy and is easy to shift on the trolley during the mold changing and transportation process, resulting in a trajectory deviation between the mold and the equipment during the mold changing, making it difficult to accurately place the mold into the equipment operating table, resulting in the risk of collision damage. Correcting it requires a lot of time and is difficult to correct the trajectory, resulting in low productivity. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic push-pull steering wheel type mold changing trolley, including a trolley frame, the trolley frame serves as the supporting skeleton of the entire mold changing trolley, carries and connects other components, and ensures the overall structural stability and strength of the mold changing trolley, a symmetrically arranged mold changing table is installed on the top of the trolley frame, the mold changing table is used to carry the mold, is a mold placement working platform, carries the mold and assists in the movement and replacement of the mold, a mold changing roller is installed on the inner wall of the mold changing table, the mold changing roller is used to guide the mold to correct the mold changing trajectory, and realizes the horizontal movement of the mold on the mold changing table through its own rolling, assisting the installation of the mold During the unloading and replacement operations, a push-and-pull centering device is arranged on the outer side of the mold changing platform, and the push-and-pull centering device is used to assist the mold changing centering, and push the mold to be centered and adjusted in the horizontal direction, so that the mold can be accurately positioned on the set installation track position. A bumper is installed on one side surface of the mold changing platform, and the bumper is used to receive the mold collision for buffering protection. When the mold collides with the components of the mold changing trolley, it plays a role in buffering and absorbing the collision energy, and protects the transported mold from damage. Wheels are installed at the bottom of the trolley frame, and the wheels support the overall weight of the mold changing trolley, and enable the mold changing trolley to walk on the track or the ground, so as to realize the transportation function of the mold; Among them, the mold changing roller includes a rotating roller, which is used to assist the movement of the mold. The friction resistance is reduced by rolling, so that the mold can move and adjust its position smoothly, which is convenient for the precise positioning and loading and unloading of the mold. The two ends of the rotating roller rotate with the inner wall of the mold changing platform. An inclined convex plate is fixedly installed on the outer edge surface of the rotating roller. The inclined convex plate is used to fine-tune the position and posture of the mold during the loading and unloading of the mold, so that the mold can accurately enter the equipment. A rotating groove is opened on the outer edge surface of the inclined convex plate, and a hinge block is rotatably connected to the inner wall of the rotating groove. A support plate is fixedly installed on the outer edge surface of the hinge block, and a spring plate is fixedly installed on the outer edge surface of the support plate. The side surface of the spring plate is fixed to the outer edge surface of the inclined convex plate. The support plate and the spring plate support and buffer the mold, reduce the vibration and impact of the mold during transportation, and improve the stability and safety during transportation.

[0005] Preferably, the mold changing platform includes a bearing platform, which is used to directly support the mold to ensure the stable placement of the mold on the trolley, the bottom surface of the bearing platform is fixed to the top of the trolley frame, the bearing platform is symmetrically arranged about the center line of the trolley frame, and a mounting groove is opened on the top of the bearing platform, the mounting groove is used to install and fix the roller, the end of the roller rotates with the inner wall of the mounting groove, and the rollers are evenly spaced in the bearing platform, a lower limit arc block is fixedly installed on the bottom surface of the inner wall of the mounting groove, a fixed cover plate is arranged above the lower limit arc block, the fixed cover plate is detachably installed on the inner wall of the mounting groove, an upper limit arc block is fixedly installed on the top of the inner wall of the fixed cover plate, and the upper limit arc block corresponds to the lower limit arc block one by one, and the upper limit arc block and the lower limit arc block are used to assist in limiting the roller.

[0006] Preferably, a shaft rod and an end shaft are fixedly installed at both ends of the roller respectively, the outer edge surface of the end shaft rotates in coordination with the inner wall of the mounting groove, and the outer edge surface of the shaft rod rotates in coordination with the inner arc surface of the upper limit arc block and the lower limit arc block.

[0007] Preferably, the push-centering device includes a centering drive component, which provides power for the push-centering process. The centering drive component is installed on the top of the trolley frame, and the centering drive component is symmetrically arranged about the center line of the support platform. A centering component is installed at the output end of the centering drive component, and the centering component is used to assist in the centering correction of the mold.

[0008] Preferably, the centering drive component includes a fixed plate, the bottom surface of the fixed plate is fixed to the top of the trolley frame, a cylinder is fixedly installed on the inner side of the fixed plate, the output shaft end of the cylinder is fixedly connected to a movable plate, the bottom surface of the movable plate slides with the top of the trolley frame, and a symmetrically arranged sliding rod is fixedly installed on the inner side of the fixed plate, the end of the sliding rod away from the fixed plate is fixed to the outer surface of the supporting platform, the outer edge surface of the sliding rod is adapted to slide with the inner wall of the movable plate, and the movable plate and the centering component are driven to move by the extension and retraction of the cylinder to assist in centering the mold.

[0009] Preferably, the centering member includes a centering plate, which is arranged above the supporting platform, and a connecting plate is fixedly installed on the outer surface of the centering plate, the bottom surface of the connecting plate is fixed to the top of the movable plate, and a through groove is opened on the inner surface of the centering plate, and the through grooves are evenly spaced on the inner surface of the centering plate, and a centering roller is adaptively rotatable on the inner wall of the through groove, and the centering roller cooperates with the centering drive member to further assist the centering, and the mold can be more accurately centered and positioned through the rolling and extrusion of the centering roller.

[0010] Preferably, the anti-collision device includes a vertical plate, one side surface of the vertical plate is fixed to the outer edge surface of the supporting platform, and the bottom surface of the vertical plate is fixed to the top of the trolley frame, a buffer is installed on the inner wall of the vertical plate, and a load-bearing member is installed at the end of the buffer, and the buffer and the load-bearing member are used to absorb impact energy to avoid damage to the mold.

[0011] Preferably, the buffer component includes a sleeve, the outer edge surface of the sleeve is fixed to the inner wall of the vertical plate, a movable plate is adaptively slid on the inner edge surface of the sleeve, a spring component is fixedly installed on one side of the movable plate, the end of the spring component away from the movable plate is fixed to the inner cavity side of the sleeve, and a pressure rod is fixedly installed on the side of the movable plate away from the spring component, and the end of the pressure rod is connected to the load-bearing component. When a collision occurs, the collision energy is absorbed by the compression deformation of the spring component and the movement of the pressure rod in the sleeve, thereby reducing the impact force of the collision and effectively protecting the mold.

[0012] Preferably, a limiting groove is provided on the outer edge surface of the sleeve, a limiting slider is fixedly installed on the outer edge surface of the shift plate, and the outer edge surface of the limiting slider is adapted to slide with the inner wall of the limiting groove.

[0013] Preferably, the load-bearing member includes a baffle, one side of the baffle is fixed to the end of the pressure rod, and a rubber pad is fixedly installed on the surface of the baffle away from the pressure rod. The baffle and the rubber pad block the mold to prevent the mold from being displaced and impacted and damaged during transportation or mold changing, and can also play a role in buffering and shock absorption. A limiting block is fixedly installed on the outer edge surface of the vertical plate, and a limiting rod is adaptively slid on the inner wall of the limiting block. The end of the limiting rod is fixed to the surface of the side of the baffle close to the vertical plate. The limiting rod and the limiting block ensure the overall stability and reliability of the baffle and the rubber pad when the mold hits the rubber pad, thereby improving the operating safety and stability of the mold changing trolley.

[0014] The present invention provides an automatic push-pull steering wheel type mold changing trolley. It has the following beneficial effects: 1. The automatic push-pull steering wheel type mold changing trolley carries the mold to be replaced through the setting of the mold changing table. The mold can be moved to the middle during the replacement process by using the mold changing roller and the push-centering device. The mold can be corrected in the process of mold changing by using the mold changing roller, which has higher overall efficiency. In addition, the anti-collision device can be used to form a limit and protection during the mold transfer process or the mold changing process to prevent the mold from colliding with the mold changing table and causing wear, thereby effectively improving the mold changing efficiency and safety.

[0015] Second, the automatic push-pull steering wheel type mold changing trolley supports the mold through the roller, uses the drive of the centering drive to make the centering parts gather towards the mold, and cooperates with the friction generated when the mold moves on the roller and the inclined convex plate to guide the mold, so that the mold moves toward the middle of the roller, and then assists in trajectory correction. At the same time, the setting of the hinge block and the support plate is used to form a certain gap between the edge and the middle of the mold, ensuring that the mold can stably correct its trajectory during the pushing process, and cooperates with the support plate and the spring sheet to play a buffering role on the mold, reducing the impact of the mold on the roller as a whole, thereby ensuring the use efficiency of the mold changing trolley.

[0016] 3. The automatic push-pull steering wheel type mold changing trolley, through the coordinated use of the cylinder and the movable plate, makes the centering plate move toward the mold, applies a thrust to the mold to move toward the middle, cooperates with the rotating roller and the inclined convex plate, so that the mold moves slowly toward the middle during the mold change process, and cooperates with the sliding friction generated by the contact between the centering roller and the mold to assist in the trajectory correction effect of the mold, thereby ensuring the accuracy of the mold replacement process.

[0017] Fourth, the automatic push-pull steering wheel type mold changing trolley, through the coordinated use of rubber pads and baffles, can withstand the collision of the mold during mold changing or transportation. The soft characteristics of the rubber pads can avoid damage to the mold caused by rigid contact. In addition, the baffle is used to withstand the impact force, the compression rod slides in the sleeve, and the spring part is compressed to deform, thereby generating elastic force and absorbing the energy of the impact force to achieve the purpose of protecting the mold. At the same time, the coordination of the limit rod and the limit block can ensure the stability of the movement of the baffle, thereby ensuring the effect of protecting the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the external structure of an automatic push-pull steering wheel type mold changing trolley of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the mold changing platform and the mold changing roller of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the mold changing roller of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the mold changing roller of the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the mold changing platform, the mold changing roller and the push centering device of the present invention; Figure 7 It is a partial structural schematic diagram of the push centering device of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the anti-collision device of the present invention; Fig. 9 It is a partial structural schematic diagram of the anti-collision device of the present invention; Fig.10 It is a schematic diagram of the partial cross-sectional structure of the buffer component of the present invention.

[0019] In the figure: 1, trolley frame; 2, die change platform; 21, bearing platform; 22, mounting groove; 23, fixed cover plate; 24, upper limit arc block; 25, lower limit arc block; 3, die change roller; 31, rotating roller; 32, shaft rod; 33, end shaft; 34, inclined convex plate; 35, hinge block; 36, supporting plate; 37, spring piece; 4, push-pull centering device; 41, centering drive member; 411, fixed plate; 412, cylinder; 413, movable plate; 414 , slide bar; 42, centering piece; 421, centering plate; 422, connecting plate; 423, through groove; 424, centering roller; 5, anti-collision device; 51, vertical plate; 52, buffer member; 521, sleeve; 522, pressure rod; 523, spring member; 524, shift plate; 525, limit slider; 526, limit groove; 53, load-bearing member; 531, baffle; 532, rubber pad; 533, limit rod; 534, limit block; 6, wheel. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] The first embodiment, as Figures 1 to 5 As shown, the present invention provides a technical solution: an automatic push-pull steering wheel type mold changing trolley, comprising a trolley frame 1, a symmetrically arranged mold changing platform 2 is installed on the top of the trolley frame 1, the mold changing platform 2 is used to carry the mold, a mold changing roller 3 is installed on the inner wall of the mold changing platform 2, the mold changing roller 3 is used to guide the mold to correct the mold changing trajectory, a push-pull centering device 4 is arranged on the outer side of the mold changing platform 2, the push-pull centering device 4 is used to assist the mold change and centering, a bumper 5 is installed on one side surface of the mold changing platform 2, the bumper 5 is used to receive the mold collision for buffering protection, The bottom of the vehicle frame 1 is provided with wheels 6, and the mold to be replaced is carried by the setting of the mold changing platform 2. The mold changing roller 3 and the push centering device 4 are used in combination to move the mold to the middle during the replacement process, and the setting of the mold changing roller 3 allows the mold to correct its trajectory during the mold changing process, which has higher overall efficiency. Furthermore, the setting of the anti-collision device 5 can form a limit and protection during the mold transfer process or the mold changing process, preventing the mold from colliding with the mold changing platform 2 and causing wear, thereby effectively improving the mold changing efficiency and safety; The die-changing roller 3 includes a rotating roller 31, both ends of which rotate with the inner wall of the die-changing platform 2, an inclined convex plate 34 is fixedly installed on the outer edge surface of the rotating roller 31, a rotating groove is provided on the outer edge surface of the inclined convex plate 34, a hinge block 35 is rotatably connected to the inner wall of the rotating groove, a support plate 36 is fixedly installed on the outer edge surface of the hinge block 35, and a spring sheet 37 is fixedly installed on the outer edge surface of the support plate 36, and the side surface of the spring sheet 37 is fixed to the outer edge surface of the inclined convex plate 34, through the rotating roller 3 1 supports the mold, and cooperates with the friction generated when the mold moves on the roller 31 and the inclined convex plate 34 to guide the mold, so that the mold moves to the middle of the roller 31, thereby assisting in trajectory correction. The mold changing platform 2 includes a bearing platform 21, the bottom surface of the bearing platform 21 is fixed to the top of the trolley frame 1, the bearing platform 21 is symmetrically arranged about the center line of the trolley frame 1, and a mounting groove 22 is opened on the top of the bearing platform 21. The end of the roller 31 rotates with the inner wall of the mounting groove 22 , and the rollers 31 are evenly spaced in the bearing platform 21, a lower limit arc block 25 is fixedly installed on the bottom surface of the inner wall of the mounting groove 22, a fixed cover plate 23 is arranged above the lower limit arc block 25, the fixed cover plate 23 is detachably installed on the inner wall of the mounting groove 22, an upper limit arc block 24 is fixedly installed on the top of the inner wall of the fixed cover plate 23, and the upper limit arc block 24 corresponds to the lower limit arc block 25 one by one, and the two ends of the roller 31 are respectively fixedly installed with a shaft rod 32 and an end shaft 33, and the end shaft 33 The outer edge surface of the mold is adapted to rotate with the inner wall of the mounting groove 22, and the outer edge surface of the shaft rod 32 is adapted to rotate with the inner arc surface of the upper limit arc block 24 and the lower limit arc block 25. The hinge block 35 and the support plate 36 are arranged to form a certain drop between the edge and the middle of the mold, ensuring that the mold can stably correct its trajectory during the pushing process, and cooperate with the support plate 36 and the spring sheet 37 to buffer the mold, reduce the impact of the mold on the roller 31 as a whole, thereby ensuring the use efficiency of the mold changing trolley.

[0022] During work, the staff places the new mold to be replaced on one of the mold changing tables 2, then moves the trolley to the equipment to be replaced, places the mold to be replaced on the other mold changing table 2, uses the mold changing roller 3 to support it, and uses the bumper 5 to limit and protect the mold changing process, absorbs the energy of the mold colliding with the bumper 5, and then moves the trolley to push the new mold to move on the roller 31, cooperates with the friction generated when the mold moves on the roller 31 and the inclined setting of the inclined convex plate 34 to guide the mold, so that the mold moves to the middle of the roller 31 to assist in trajectory correction, and then uses the hinge block 35 and the support plate 36 to form a certain drop between the edge and the middle of the mold, stabilizes the trajectory, and cooperates with the support plate 36 and the spring 37 to cushion the mold and reduce the impact of the mold on the roller 31 as a whole, and then the new mold can be loaded on the equipment.

[0023] The second embodiment is based on the first embodiment. Figure 2 , Figure 6 , Figure 7 As shown, the push centering device 4 includes a centering driving member 41, which is installed on the top of the trolley frame 1 and is symmetrically arranged about the center line of the carrier 21. A centering member 42 is installed at the output end of the centering driving member 41. The centering member 42 is used to assist the centering correction of the mold. The centering member 42 is driven by the centering driving member 41 to gather toward the mold to assist the mold in centering installation. The centering drive member 41 includes a fixed plate 411, the bottom surface of the fixed plate 411 is fixed to the top of the trolley frame 1, a cylinder 412 is fixedly installed on the inner side of the fixed plate 411, and the end of the output shaft of the cylinder 412 is fixedly connected to a movable plate 413, the bottom surface of the movable plate 413 slides with the top of the trolley frame 1, and a symmetrically arranged sliding rod 414 is fixedly installed on the inner side of the fixed plate 411, and the end of the sliding rod 414 away from the fixed plate 411 is fixed to the outer surface of the bearing platform 21, and the outer edge surface of the sliding rod 414 is adapted to slide with the inner wall of the movable plate 413, and the centering plate 421 is moved toward the mold by the coordinated use of the cylinder 412 and the movable plate 413, so that the mold is applied with a thrust to move toward the middle; The centering member 42 includes a centering plate 421, which is arranged above the supporting platform 21, and a connecting plate 422 is fixedly installed on the outer surface of the centering plate 421, and the bottom surface of the connecting plate 422 is fixed to the top of the movable plate 413, and a through groove 423 is opened on the inner surface of the centering plate 421, and the through grooves 423 are evenly spaced on the inner surface of the centering plate 421, and a centering roller 424 is adaptively rotated on the inner wall of the through groove 423, which cooperates with the rotating roller 31 and the inclined convex plate 34 to make the mold move slowly to the middle during the mold change process, and cooperates with the sliding friction generated by the contact between the centering roller 424 and the mold to assist the mold trajectory correction effect, thereby ensuring the accuracy of the mold replacement process.

[0024] During operation, the movable plate 413 is moved by the extension and retraction of the output shaft of the cylinder 412, so that the centering plate 421 moves toward the mold, exerting a thrust toward the middle of the mold, and cooperating with the rotating roller 31 and the inclined convex plate 34, the mold moves slowly toward the middle during the mold change process, and the sliding friction generated by the contact between the centering roller 424 and the mold assists in the trajectory correction effect of the mold.

[0025] The third embodiment is based on the first and second embodiments. Figures 8 to 10 As shown, the bumper 5 includes a vertical plate 51, one side surface of the vertical plate 51 is fixed to the outer edge surface of the load-bearing platform 21, and the bottom surface of the vertical plate 51 is fixed to the top of the trolley frame 1, a buffer 52 is installed on the inner wall of the vertical plate 51, and a load-bearing member 53 is installed at the end of the buffer 52; The buffer member 52 includes a sleeve 521, the outer edge surface of the sleeve 521 is fixed to the inner wall of the vertical plate 51, and a moving plate 524 is adaptively slid on the inner edge surface of the sleeve 521. A spring member 523 is fixedly installed on one side of the moving plate 524. The end of the spring member 523 away from the moving plate 524 is fixed to the inner cavity side of the sleeve 521. A pressure rod 522 is fixedly installed on the side of the moving plate 524 away from the spring member 523. The end of the pressure rod 522 is connected to the load-bearing member 53. A limiting groove 526 is provided on the outer edge surface of the sleeve 521. A limiting slider 525 is fixedly installed on the outer edge surface of the moving plate 524. The outer edge surface of the limiting slider 525 is adaptively slidable with the inner wall of the limiting groove 526. The pressure rod 522 is subjected to the extrusion force and slides in the sleeve 521, and the spring member 523 is compressed to deform, thereby generating elastic force, and then absorbing the impact force energy, so as to achieve the purpose of protecting the mold; The load-bearing member 53 includes a baffle 531, one side of which is fixed to the end of the pressure rod 522, a rubber pad 532 is fixedly installed on the surface of the baffle 531 away from the pressure rod 522, a limit block 534 is fixedly installed on the outer edge surface of the vertical plate 51, and a limit rod 533 is adaptively slid on the inner wall of the limit block 534. The end of the limit rod 533 is fixed to the surface of the baffle 531 close to the vertical plate 51. Through the use of the rubber pad 532 and the baffle 531, the bearing mold In case of collision during mold changing or transportation, the soft property of the rubber pad 532 can be utilized to avoid damage to the mold caused by rigid contact. Furthermore, the baffle plate 531 is utilized to bear the impact force, the pressure rod 522 is squeezed to slide in the sleeve 521, and the spring member 523 is compressed to deform, thereby generating elastic force and absorbing the energy of the impact force to achieve the purpose of protecting the mold. At the same time, the cooperation of the limit rod 533 and the limit block 534 can ensure the stability of the movement of the baffle plate 531, thereby ensuring the effect of protecting the mold.

[0026] During operation, the rubber pad 532 and the baffle 531 are used to bear the collision of the mold during mold change or transportation. The soft characteristics of the rubber pad 532 are used to avoid damage to the mold caused by rigid contact. The baffle 531 is used to bear the impact force, and the compression rod 522 slides in the sleeve 521, and the compression spring part 523 is deformed to generate elastic force and absorb the energy of the impact force to protect the mold. The limit rod 533 and the limit block 534 are used to ensure the stability of the movement of the baffle 531.

[0027] The working principle of the automatic push-pull steering wheel type mold changing trolley is described in detail below.

[0028] When in use, the staff places the new mold to be replaced on one of the mold changing tables 2, then moves the trolley to the equipment to be replaced, places the mold to be replaced on the other mold changing table 2, uses the roller 31 to support it, and uses the rubber pad 532 and the baffle 531 to bear the collision of the mold during mold changing or transportation. The soft characteristics of the rubber pad 532 are used to avoid damage to the mold by rigid contact, and then the baffle 531 is used to bear the impact force, squeeze the pressure rod 522 to slide in the sleeve 521, compress the spring part 523 to deform, generate elastic force, absorb the impact force energy, and protect the mold. Then move the trolley to push the new mold to move on the roller 31, and cooperate with the friction generated when the mold moves on the roller 31. The rubbing and inclined convex plates 34 are inclinedly set to guide the mold, so that the mold moves toward the middle of the roller 31. At the same time, the movable plate 413 is moved by the extension and retraction of the output shaft of the cylinder 412, so that the centering plate 421 moves toward the mold, and a thrust is applied to the mold to move toward the middle. In cooperation with the roller 31 and the inclined convex plate 34, the mold moves slowly toward the middle during the mold change process. The sliding friction generated by the contact between the centering roller 424 and the mold assists in trajectory correction, and then the hinge block 35 and the support plate 36 are used to form a certain drop between the edge and the middle of the mold to stabilize the trajectory. In cooperation with the support plate 36 and the spring sheet 37, the mold is buffered to reduce the impact of the mold on the roller 31 as a whole, and then the new mold can be loaded on the equipment.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An automatic push-pull steering wheel type mold changing trolley, characterized in that: The invention comprises a trolley frame (1), wherein a symmetrically arranged die changing platform (2) is installed on the top of the trolley frame (1), wherein the die changing platform (2) is used to carry the die, and a die changing roller (3) is installed on the inner wall of the die changing platform (2), wherein the die changing roller (3) is used to guide the die to correct the die changing trajectory, and a push centering device (4) is arranged on the outer side of the die changing platform (2), wherein the push centering device (4) is used to assist the die changing and centering, and an anti-collision device (5) is installed on one side surface of the die changing platform (2), wherein the anti-collision device (5) is used to receive the die collision for buffering protection, and a wheel (6) is installed on the bottom of the trolley frame (1); The die-changing roller (3) comprises a rotating roller (31), the two ends of which rotate with the inner wall of the die-changing platform (2), an inclined convex plate (34) is fixedly mounted on the outer edge surface of the rotating roller (31), a rotating groove is provided on the outer edge surface of the inclined convex plate (34), a hinge block (35) is rotatably connected to the inner wall of the rotating groove, a support plate (36) is fixedly mounted on the outer edge surface of the hinge block (35), and a spring sheet (37) is fixedly mounted on the outer edge surface of the support plate (36), and the side surface of the spring sheet (37) is fixed to the outer edge surface of the inclined convex plate (34).

2. The automatic push-pull steering wheel type mold changing trolley according to claim 1, characterized in that: The mold changing platform (2) comprises a bearing platform (21), the bottom surface of the bearing platform (21) is fixed to the top of the trolley frame (1), the bearing platform (21) is symmetrically arranged about the center line of the trolley frame (1), the top of the bearing platform (21) is provided with a mounting groove (22), the ends of the rollers (31) rotate with the inner wall of the mounting groove (22), and the rollers (31) are distributed in the bearing platform (21) at equal intervals, a lower limit arc block (25) is fixedly installed on the bottom surface of the inner wall of the mounting groove (22), a fixed cover plate (23) is arranged above the lower limit arc block (25), the fixed cover plate (23) is detachably installed on the inner wall of the mounting groove (22), an upper limit arc block (24) is fixedly installed on the top of the inner wall of the fixed cover plate (23), and the upper limit arc block (24) corresponds to the lower limit arc block (25) one by one.

3. The automatic push-pull steering wheel type mold changing trolley according to claim 2, characterized in that: A shaft (32) and an end shaft (33) are respectively fixedly mounted on both ends of the rotating roller (31); the outer edge surface of the end shaft (33) rotates in coordination with the inner wall of the mounting groove (22); and the outer edge surface of the shaft (32) rotates in coordination with the inner arc surfaces of the upper limit arc block (24) and the lower limit arc block (25).

4. The automatic push-pull steering wheel type mold changing trolley according to claim 3, characterized in that: The push centering device (4) comprises a centering drive component (41), the centering drive component (41) is mounted on the top of the trolley frame (1), and the centering drive component (41) is symmetrically arranged with respect to the center line of the support platform (21), and a centering component (42) is mounted at the output end of the centering drive component (41), and the centering component (42) is used to assist in the centering correction of the mold.

5. The automatic push-pull steering wheel type mold changing trolley according to claim 4, characterized in that: The centering drive member (41) comprises a fixed plate (411), the bottom surface of the fixed plate (411) is fixed to the top of the trolley frame (1), a cylinder (412) is fixedly installed on the inner side of the fixed plate (411), the end of the output shaft of the cylinder (412) is fixedly connected to a movable plate (413), the bottom surface of the movable plate (413) slides with the top of the trolley frame (1), and a symmetrically arranged sliding rod (414) is fixedly installed on the inner side of the fixed plate (411), the end of the sliding rod (414) away from the fixed plate (411) is fixed to the outer surface of the supporting platform (21), and the outer edge surface of the sliding rod (414) slides in a matching manner with the inner wall of the movable plate (413).

6. The automatic push-pull steering wheel type mold changing trolley according to claim 5, characterized in that: The centering member (42) comprises a centering plate (421), the centering plate (421) is arranged above the supporting platform (21), and a connecting plate (422) is fixedly installed on the outer surface of the centering plate (421), the bottom surface of the connecting plate (422) is fixed to the top of the movable plate (413), and a through groove (423) is opened on the inner surface of the centering plate (421), and the through grooves (423) are evenly spaced on the inner surface of the centering plate (421), and a centering roller (424) is adaptively rotatable on the inner wall of the through groove (423).

7. The automatic push-pull steering wheel type mold changing trolley according to claim 2, characterized in that: The bumper (5) comprises a vertical plate (51), one side surface of the vertical plate (51) is fixed to the outer edge surface of the support platform (21), and the bottom surface of the vertical plate (51) is fixed to the top of the trolley frame (1), a buffer member (52) is installed on the inner wall of the vertical plate (51), and a load-bearing member (53) is installed at the end of the buffer member (52).

8. The automatic push-pull steering wheel type mold changing trolley according to claim 7, characterized in that: The buffer member (52) comprises a sleeve (521), the outer edge surface of the sleeve (521) is fixed to the inner wall of the vertical plate (51), a shift plate (524) is adaptively slidably arranged on the inner edge surface of the sleeve (521), a spring member (523) is fixedly mounted on one side of the shift plate (524), an end of the spring member (523) away from the shift plate (524) is fixed to the inner cavity side surface of the sleeve (521), a pressure rod (522) is fixedly mounted on the side of the shift plate (524) away from the spring member (523), and an end of the pressure rod (522) is connected to the load-bearing member (53).

9. The automatic push-pull steering wheel type mold changing trolley according to claim 8, characterized in that: A limiting groove (526) is provided on the outer edge surface of the sleeve (521), a limiting slider (525) is fixedly mounted on the outer edge surface of the shift plate (524), and the outer edge surface of the limiting slider (525) slides in a matching manner with the inner wall of the limiting groove (526).

10. The automatic push-pull steering wheel type mold changing trolley according to claim 8, characterized in that: The load-bearing member (53) comprises a baffle (531), one side of the baffle (531) is fixed to the end of the pressure rod (522), a rubber pad (532) is fixedly mounted on the surface of the baffle (531) on the side away from the pressure rod (522), a limit block (534) is fixedly mounted on the outer edge surface of the vertical plate (51), a limit rod (533) is adaptively slidably mounted on the inner wall of the limit block (534), and the end of the limit rod (533) is fixed to the surface of the baffle (531) on the side close to the vertical plate (51).

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