Turn-up drum and forming machine system

Abstract

The utility model provides a turn-up drum and a forming machine system. The turn-up drum comprises a main shaft assembly and two turn-up mechanisms, the two turn-up mechanisms are symmetrically arranged about the center line of the main shaft assembly in the length direction, each turn-up mechanism comprises a wall plate, the wall plates are arranged on the main shaft assembly in a sleeving mode, and the thickness direction of the wall plates is parallel to the axial direction of the main shaft assembly; the guide disc is arranged on the side, close to the wallboard of the other reverse wrapping mechanism, of the wallboard, the wallboard is provided with a plurality of first guide structures extending in the radial direction of the main shaft assembly, and the guide disc is provided with a plurality of second guide structures; the multiple drum tiles can move in the radial direction of the main shaft assembly; the driving mechanism is arranged on the main shaft assembly; the driving mechanism is in driving connection with the drum tiles through the supporting blocks; and one end of each guide rod is located in the second guide structure, and the other end of each guide rod is connected with the drum tile. The anti-package drum solves the problem of poor use performance of the anti-package drum in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tire production equipment field, specifically, relates to a reverse building drum and forming machine system. BACKGROUND

[0002] The reverse building drum is a core component of the twice forming machine, and the rubber cylinder of the tire body drum is transmitted to the tire body drum, and then the reverse building drum supports the rubber material. The forming machine positive package refers to the steel ring after the positive package, and then the capsule seat is reversed, the reverse building drum is retracted and the tire body cylinder is unloaded. As for the structure of the existing reverse building drum rising and falling on the left and right sides of the forming machine system, the structure is that the left and right side drums slide in the T-shaped slot of the wall plate under the action of the lead screw through the sliding seat and the connecting rod mechanism to drive the supporting block to slide up and down, drive the supporting block to rise and fall (the supporting block is provided with a drum plate), and realize the rising and falling of the two side drums. The supporting plate will be jammed in the process of sliding in the T-shaped slot (wall plate).

[0003] Therefore, the existing technology has the problem of poor use performance of the reverse building drum. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a reverse building drum and forming machine system to solve the problem of poor use performance of the reverse building drum in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a reverse building drum is provided, which comprises a main shaft assembly and two reverse building mechanisms, the two reverse building mechanisms are symmetrically arranged about the middle line of the length direction of the main shaft assembly, the reverse building mechanism comprises: a wall plate, the wall plate is sleeved on the main shaft assembly, and the thickness direction of the wall plate is parallel to the axial direction of the main shaft assembly; a guide disc, the guide disc is arranged on one side of the wall plate close to the wall plate of the other reverse building mechanism, the guide disc and the wall plate are parallel to each other, and the wall plate has a plurality of first guide structures extending along the radial direction of the main shaft assembly, the guide disc is provided with a plurality of second guide structures extending along the radial direction of the main shaft assembly corresponding to the plurality of first guide structures; a plurality of drum tiles, the plurality of drum tiles are arranged at intervals along the circumferential direction of the wall plate and can move along the radial direction of the main shaft assembly; a driving mechanism, the driving mechanism is arranged on the main shaft assembly, and at least a part of the driving mechanism can move between the wall plate and the guide disc; a plurality of supporting blocks, the plurality of supporting blocks and the plurality of first guide structures are one-to-one corresponding, at least a part of the supporting block is movably arranged in the first guide structure, and the driving mechanism is drivingly connected with the drum tile through the supporting block; a plurality of guide rods, the plurality of guide rods and the plurality of second guide structures are one-to-one corresponding, one end of the guide rod is located in the second guide structure, and the other end of the guide rod extends out of the second guide structure and is connected with the drum tile.

[0006] Further, the second guide structure is a guide hole extending along the radial direction of the main shaft assembly, and the guide rod extends along the radial direction of the main shaft assembly.

[0007] Further, the driving mechanism comprises a screw rod assembly, at least a part of the screw rod assembly is arranged inside the main shaft assembly; a sliding sleeve assembly, the sliding sleeve assembly movably sheaths the part of the main shaft assembly between the wallboard and the guide disc, at least another part of the screw rod assembly extends out of the main shaft assembly and is drivingly connected with the sliding sleeve assembly to drive the sliding sleeve assembly to move between the wallboard and the guide disc; a plurality of connecting rods, each supporting block is correspondingly connected with at least one different connecting rod, and two ends of the connecting rod are rotatably connected with the sliding sleeve assembly and the supporting block respectively.

[0008] Further, the connecting rod and the axial direction of the main shaft assembly form an included angle greater than 0 degrees, and when the sliding sleeve assembly moves along the axial direction of the main shaft assembly, the size of the included angle between the connecting rod and the axial direction of the main shaft assembly changes.

[0009] Further, the wrapping mechanism further comprises a spacer sleeve, the spacer sleeve sheaths the main shaft assembly, and the sliding sleeve assembly sheaths the spacer sleeve.

[0010] Further, the side of the guide disc, which faces the spacer sleeve, has an annular protrusion, and the circumferential outer side wall of the end of the spacer sleeve close to the guide disc abuts against the circumferential inner side wall of the annular protrusion.

[0011] Further, the screw rod assembly comprises a screw rod body, the screw rod body is rotatably arranged inside the main shaft assembly; a nut, the nut is threadedly connected with the screw rod body and can move along the axial direction of the screw rod body, and the circumferential side wall of the nut has at least one connecting protrusion, at least a part of the connecting protrusion extends out of the main shaft assembly and is connected with the sliding sleeve assembly through the spacer sleeve.

[0012] Further, the spacer sleeve is provided with an avoiding hole extending along the axial direction of the main shaft assembly corresponding to the connecting protrusion.

[0013] Further, each of the drum shoes is connected with at least one different supporting block respectively; and / or each of the drum shoes is connected with at least one different guide rod respectively.

[0014] According to another aspect of the present application, a forming machine system is provided, comprising the wrapping drum.

[0015] The technical scheme of the utility model discloses, the reverse packing drum in the application includes the main shaft subassembly and two reverse packing mechanisms, two reverse packing mechanisms are about the midline symmetry of the length direction of the main shaft subassembly, and the reverse packing mechanism includes wallboard, guide disc, a plurality of drum tile, driving mechanism, a plurality of support block and a plurality of guide rod.Wallboard is set on the main shaft subassembly, and the thickness direction of wallboard is parallel with the axial direction of the main shaft subassembly, and the guide disc is set on the side of wallboard close to the wallboard of another reverse packing mechanism, and the guide disc and wallboard are parallel with each other, and the wallboard has a plurality of first guide structure extending along the radial direction of the main shaft subassembly, and the guide disc is provided with a plurality of second guide structure extending along the radial direction of the main shaft subassembly corresponding to the plurality of first guide structure, and a plurality of drum tile are spaced apart along the circumferential direction of wallboard and can move along the radial direction of the main shaft subassembly, and the driving mechanism is set on the main shaft subassembly, and at least a part of the driving mechanism can move between the wallboard and the guide disc, and a plurality of support block and a plurality of first guide structure are one-to-one corresponding, and at least a part of the support block is movably arranged in the first guide structure, and the driving mechanism is drivingly connected with the drum tile through the support block, and a plurality of guide rods and a plurality of second guide structures are one-to-one corresponding, one end of the guide rod is located in the second guide structure, and the other end of the guide rod extends out of the second guide structure and is connected with the drum tile.

[0016] When using the reverse packing drum in the application, since the driving assembly is provided, the plurality of drum tiles can be driven to move along the radial direction of the main shaft subassembly by the driving assembly, so that the lifting movement of the drum tile is realized, and the reverse packing effect of the reverse packing drum is realized.Moreover, in the movement process of the drum tile, the cooperation of the first guide structure of the wallboard and the support block and the cooperation of the second guide structure of the guide disc and the guide rod can ensure that the drum tile can move along the preset direction, and the drum tile will not be inclined in the movement process, and thus the jamming between the wallboard and the support block can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the specification explain the present application. The present application is illustrated by way of example in the drawings in which:

[0018] Figure 1 The structure schematic view of the reverse packing drum according to one specific embodiment of the utility model is shown.

[0019] Among them, the above-mentioned drawing includes the following sign:

[0020] 10, main shaft assembly; 20, wrapping mechanism; 21, wallboard; 211, first guide structure; 22, guide disc; 221, second guide structure; 222, annular protrusion; 23, tile; 24, driving mechanism; 241, screw assembly; 242, sliding sleeve assembly; 243, connecting rod; 244, spacer sleeve; 25, support block; 26, guide rod. DETAILED DESCRIPTION

[0021] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0023] In the present application, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are generally directed to the direction shown in the drawings, or directed to the vertical, perpendicular or gravity direction of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0024] In order to solve the problem of poor performance of the wrapping drum in the prior art, the present application provides a wrapping drum and a forming machine system.

[0025] Moreover, the forming machine system in the present application has the following wrapping drum.

[0026] As Figure 1As shown, the reverse wrapping drum in the present application comprises a main shaft assembly 10 and two reverse wrapping mechanisms 20, the two reverse wrapping mechanisms 20 are symmetrically arranged about the middle line of the length direction of the main shaft assembly 10, the reverse wrapping mechanism 20 comprises a wall plate 21, a guide disc 22, a plurality of crown blocks 23, a driving mechanism 24, a plurality of supporting blocks 25 and a plurality of guide rods 26. The wall plate 21 is sleeved on the main shaft assembly 10, and the thickness direction of the wall plate 21 is parallel to the axial direction of the main shaft assembly 10; the guide disc 22 is arranged on the side of the wall plate 21 close to the wall plate 21 of the other reverse wrapping mechanism 20, the guide disc 22 and the wall plate 21 are parallel to each other, and the wall plate 21 has a plurality of first guide structures 211 extending along the radial direction of the main shaft assembly 10, the guide disc 22 is provided with a plurality of second guide structures 221 extending along the radial direction of the main shaft assembly 10 corresponding to the plurality of first guide structures 211; a plurality of crown blocks 23 are arranged at intervals along the circumferential direction of the wall plate 21 and can move along the radial direction of the main shaft assembly 10; the driving mechanism 24 is arranged on the main shaft assembly 10, and at least a part of the driving mechanism 24 can move between the wall plate 21 and the guide disc 22; the plurality of supporting blocks 25 and the plurality of first guide structures 211 correspond one by one, at least a part of the supporting block 25 is movably arranged in the first guide structure 211, and the driving mechanism 24 is drivingly connected with the crown block 23 through the supporting block 25; the plurality of guide rods 26 and the plurality of second guide structures 221 correspond one by one, one end of the guide rod 26 is located inside the second guide structure 221, and the other end of the guide rod 26 extends out of the second guide structure 221 and is connected with the crown block 23.

[0027] When the reverse wrapping drum in the present application is used, because of the driving assembly, the crown blocks 23 can be driven to move along the radial direction of the main shaft assembly 10 by the driving assembly, so as to realize the lifting movement of the crown blocks 23, thereby realizing the reverse wrapping function of the reverse wrapping drum. Moreover, in the process of movement of the crown blocks 23, through the cooperation of the first guide structure 211 of the wall plate 21 and the supporting block 25 and the cooperation of the second guide structure 221 of the guide disc 22 and the guide rod 26, it can be ensured that the crown blocks 23 can move along the preset direction and will not be deflected in the process of movement, thereby effectively reducing the jamming between the wall plate 21 and the supporting block 25. Therefore, the reverse wrapping drum in the present application effectively solves the problem of poor use performance of the reverse wrapping drum in the prior art.

[0028] It should be noted that the middle line of the length direction of the main shaft assembly 10 mentioned above refers to the middle line located at the half length position of the main shaft assembly 10 and extending along the radial direction of the main shaft assembly 10, and the distance from the middle line to the two ends of the main shaft assembly 10 is equal. Moreover, the two reverse wrapping mechanisms 20 are symmetrically arranged about the middle line. Of course, the position of the middle line can also be adaptively adjusted according to the actual design situation, that is, the distance from the middle line to the two ends of the main shaft assembly 10 can also be different, but the middle line still extends along the radial direction of the main shaft, and the two reverse wrapping mechanisms 20 are still symmetrically arranged about the middle line.

[0029] Optionally, the second guide structure 221 is a guide hole extending in the radial direction of the main shaft assembly 10, and the guide rod 26 extends in the radial direction of the main shaft assembly 10. The radial arrangement of the guide hole and the guide rod 26 makes the radial movement of the drum cover 23 more smooth, reduces friction and resistance during movement, improves the response speed and operation accuracy of the turn-up drum, and is suitable for production environments that require fast and accurate turn-up operation. In terms of implementation effect, the radial arrangement of the guide hole and the guide rod 26 reduces the energy loss of the drum cover 23 during movement, improves the overall efficiency of the system, and also improves the operation accuracy of the turn-up drum, making the material fit more closely during the turn-up process and reducing material waste during the turn-up process.

[0030] In a specific embodiment of the present application, the driving mechanism 24 includes a lead screw assembly 241, a sliding sleeve assembly 242, and a plurality of connecting rods 243. At least a portion of the lead screw assembly 241 is arranged inside the main shaft assembly 10; the sliding sleeve assembly 242 is movably sleeved on the portion of the main shaft assembly 10 between the wallboard 21 and the guide disc 22, and at least another portion of the lead screw assembly 241 extends out of the main shaft assembly 10 and is drivingly connected with the sliding sleeve assembly 242 to drive the sliding sleeve assembly 242 to move between the wallboard 21 and the guide disc 22; each support block 25 corresponds to at least one different connecting rod 243, and the two ends of the connecting rod 243 are rotatably connected with the sliding sleeve assembly 242 and the support block 25, respectively. The cooperation of the lead screw assembly 241 and the sliding sleeve assembly 242 converts the rotary motion into the radial motion of the drum cover 23 through the connecting rod 243. This transmission mode is efficient and accurate, and is suitable for molding processes that require accurate control of the radial position of the drum cover 23, such as tire molding, rubber product molding, etc. In terms of implementation effect, the efficient cooperation of the lead screw assembly 241 and the sliding sleeve assembly 242 enables high-precision radial position control of the turn-up drum during operation, improving the stability and consistency of the molding process.

[0031] Optionally, the connecting rod 243 has an included angle greater than 0 degrees with the axial direction of the main shaft assembly 10, and the size of the included angle between the connecting rod 243 and the axial direction of the main shaft assembly 10 changes when the sliding sleeve assembly 242 moves in the axial direction of the main shaft assembly 10. This design enables the connecting rod 243 to produce a lever effect during movement, amplifying the driving effect of the lead screw assembly 241 and improving the movement speed and responsiveness of the drum cover 23, which is suitable for production scenarios that require rapid adjustment of the position of the drum cover 23. In terms of implementation effect, the rapid adjustment of the position of the drum cover 23 through the change of the included angle between the connecting rod 243 and the main shaft assembly 10 improves production efficiency. In terms of application scenarios, this design is particularly suitable for production environments that require rapid response, such as multi-specification and multi-model tire production lines, where the turn-up drum can quickly adapt to different sizes of tire molding requirements, improving the flexibility and adaptability of the production line.

[0032] Optionally, the turn-up mechanism 20 further comprises a spacer sleeve 244, which is sleeved on the main shaft assembly 10, and the sliding sleeve assembly 242 is sleeved on the spacer sleeve 244. The spacer sleeve 244 not only protects the main shaft assembly 10 from being directly worn by the sliding sleeve assembly 242, but also guides the movement of the sliding sleeve assembly 242, thereby improving the overall stability and reliability of the system, and is suitable for long-time continuous operation in production environment. In terms of implementation effect, the protective effect of the spacer sleeve 244 significantly prolongs the service life of the main shaft assembly 10, reduces the maintenance frequency and cost of the equipment, and the guiding effect ensures the smooth movement of the sliding sleeve assembly 242, thereby reducing the failure rate of the system. In terms of application scenarios, this design is particularly suitable for tire production lines that operate continuously for 24 hours, because long-time continuous operation has very high requirements for the stability and reliability of the equipment. The spacer sleeve 244 can ensure that the turn-up drum maintains good working condition during long-time operation, reduces downtime, and improves production efficiency.

[0033] Optionally, the side of the guide disc 22 facing the spacer sleeve 244 has an annular protrusion 222, and the circumferential outer side wall of the end of the spacer sleeve 244 close to the guide disc 22 abuts against the circumferential inner side wall of the annular protrusion 222. The cooperation of the annular protrusion 222 and the spacer sleeve 244 forms the positioning between the guide disc 22 and the spacer sleeve 244, ensures the accurate movement of the sliding sleeve assembly 242, reduces the deviation and shaking during movement, improves the precision and efficiency of the turn-up operation, and is suitable for forming processes with high requirements for turn-up precision. In terms of implementation effect, the precise cooperation of the annular protrusion 222 and the spacer sleeve 244 reduces the position error of the drum shoe 23 during the turn-up process, and improves the quality of the formed product.

[0034] Specifically, the lead screw assembly 241 comprises a lead screw body and a nut. The lead screw body is rotatably arranged in the interior of the main shaft assembly 10; the nut is threadedly connected with the lead screw body and can move along the axial direction of the lead screw body, and the circumferential side wall of the nut has at least one connecting protrusion, at least a part of the connecting protrusion protruding out of the main shaft assembly 10 and connecting with the sliding sleeve assembly 242 through the spacer sleeve 244. Of course, the turn-up drum in the present application can also comprise a machine case for driving at least one of the main shaft assembly 10 and the lead screw assembly 241. Since this machine case belongs to the prior art, it will not be described again.

[0035] Optionally, the spacer sleeve 244 is provided with an avoiding hole extending along the axial direction of the main shaft assembly 10 corresponding to the connecting protrusion. The design of the avoiding hole avoids the obstruction of the movement of the connecting protrusion by the spacer sleeve 244, ensures the effective connection between the nut and the sliding sleeve assembly 242, and improves the overall operation efficiency and flexibility of the system, which is suitable for production environments that require frequent adjustment of the position of the drum pad 23. In terms of implementation effect, the design of the avoiding hole greatly improves the movement freedom of the connecting protrusion, reduces the frictional resistance in the movement process, and enables the reverse wrapping drum to maintain good response speed and accuracy when the position of the drum pad 23 is frequently adjusted.

[0036] Optionally, each drum pad 23 is connected with at least one different support block 25. Optionally, each drum pad 23 is connected with at least one different guide rod 26. This independent connection design enables the movement of each drum pad 23 to be independently controlled, improving the adaptability and flexibility of the reverse wrapping drum, which is suitable for complex and variable forming processes, such as the forming of multi-layer composite materials and the forming of special-shaped products. In terms of implementation effect, the independent connection design enables the reverse wrapping drum to achieve independent movement control of the drum pad 23 according to different forming requirements.

[0037] When using the reverse wrapping drum in the present application, the main process steps include: under the action of the machine box of the forming machine, the screw body drives the sliding sleeve assembly to move along the axial direction of the main shaft assembly 10 and drives the drum pad 23 to move along the radial direction of the main shaft assembly 10 and close to the axis of the main shaft assembly 10, thereby realizing drum shrinking; the carcass sleeve is delivered to the position; under the action of the machine box of the forming machine, the screw body drives the sliding sleeve assembly to move along the axial direction of the main shaft assembly 10 in the opposite direction and drives the drum pad 23 to move along the radial direction of the main shaft assembly 10 and away from the axis of the main shaft assembly 10, thereby realizing drum expanding; the forming machine reverse wrapping finger performs over wrapping on the rubber material on both sides of the drum body; the steel ring is on both sides of the tire shoulder, and the forming machine capsule seat performs reverse wrapping on the rubber material; under the action of the machine box of the forming machine, the screw body drives the sliding sleeve assembly to move along the axial direction of the main shaft assembly 10 and drives the drum pad 23 to move along the radial direction of the main shaft assembly 10 and close to the axis of the main shaft assembly 10, thereby realizing drum shrinking, and the tire blank is removed.

[0038] By adopting the above structure, the reverse wrapping drum and the forming machine system of the present application have the following advantages: the structure design is ingenious, the radial movement of the drum pad 23 is realized through the cooperation of the screw assembly 241 and the sliding sleeve assembly 242, thereby effectively performing reverse wrapping operation, improving the operation precision and efficiency of the forming machine system. At the same time, the connecting rod 243 and the support block 25 are provided, so that the movement of the drum pad 23 is more stable, the cooperation of the guide rod 26 and the guide disc 22 further ensures the accurate movement trajectory of the drum pad 23, the overall structure is compact, the operation is simple, the maintenance cost is low, it is suitable for various forming processes, and the flexibility and applicability in actual production are improved.

[0039] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0040] 1. Effectively solve the problem of poor performance of the existing technology;

[0041] 2. Simple structure, stable performance.

[0042] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0043] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0044] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0045] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A turn-up drum, characterized in that: The invention comprises a main shaft assembly (10) and two turn-up mechanisms (20), wherein the two turn-up mechanisms (20) are symmetrically arranged about a midline in the longitudinal direction of the main shaft assembly (10), and the turn-up mechanisms (20) comprise: a wall panel (21), wherein the wall panel (21) is sleeved on the main shaft assembly (10), and a thickness direction of the wall panel (21) is parallel to an axial direction of the main shaft assembly (10); A guide plate (22), the guide plate (22) being arranged on a side of the wall plate (21) close to the other of the turn-up mechanisms (20), the guide plate (22) and the wall plate (21) being parallel to each other, and the wall plate (21) having a plurality of first guide structures (211) extending in the radial direction of the main shaft assembly (10), and the guide plate (22) being provided with a plurality of second guide structures (221) extending in the radial direction of the main shaft assembly (10) corresponding to the plurality of first guide structures (211); a plurality of drum tiles (23), the drum tiles (23) being spaced apart along the circumference of the wall panel (21) and being capable of moving in the radial direction of the main shaft assembly (10); a driving mechanism (24), the driving mechanism (24) being disposed on the main shaft assembly (10), and at least a portion of the driving mechanism (24) being capable of moving between the wall panel (21) and the guide plate (22); a plurality of support blocks (25), wherein the plurality of support blocks (25) correspond to the plurality of first guide structures (211) on a one-to-one basis, at least a portion of the support block (25) is movably disposed within the first guide structure (211), and the driving mechanism (24) is drivingly connected to the drum shoe (23) via the support block (25); A plurality of guide rods (26), wherein the plurality of guide rods (26) and the plurality of second guide structures (221) correspond one to one, one end of the guide rod (26) is located inside the second guide structure (221), and the other end of the guide rod (26) extends out of the second guide structure (221) and is connected to the drum shoe (23).

2. The turn-up drum according to claim 1, characterized in that: The second guide structure (221) is a guide hole extending in the radial direction of the main shaft assembly (10), and the guide rod (26) extends in the radial direction of the main shaft assembly (10).

3. The turn-up drum according to claim 1, characterized in that: The driving mechanism (24) comprises: a screw assembly (241), at least a portion of the screw assembly (241) being disposed inside the spindle assembly (10); a sliding sleeve assembly (242), the sliding sleeve assembly (242) being movably sleeved on a portion of the main shaft assembly (10) located between the wall panel (21) and the guide plate (22); at least another portion of the lead screw assembly (241) extending out of the main shaft assembly (10) and being drivingly connected to the sliding sleeve assembly (242) to drive the sliding sleeve assembly (242) to move between the wall panel (21) and the guide plate (22); A plurality of connecting rods (243) are provided, each supporting block (25) corresponds to at least one different connecting rod (243), and both ends of the connecting rod (243) are rotatably connected to the sliding sleeve assembly (242) and the supporting block (25).

4. The turn-up drum according to claim 3, characterized in that: An included angle greater than 0 degrees is formed between the connecting rod (243) and the axial direction of the main shaft assembly (10); when the sliding sleeve assembly (242) moves along the axial direction of the main shaft assembly (10), the size of the included angle between the connecting rod (243) and the axial direction of the main shaft assembly (10) changes.

5. The turn-up drum according to claim 3, characterized in that: The turn-up mechanism (20) further includes a spacer sleeve (244), the spacer sleeve (244) is sleeved on the main shaft assembly (10), and the sliding sleeve assembly (242) is sleeved on the spacer sleeve (244).

6. The turn-up drum according to claim 5, characterized in that: The guide disc (22) has an annular protrusion (222) on one side facing the spacer (244), and the circumferential outer wall of one end of the spacer (244) close to the guide disc (22) abuts against the circumferential inner wall of the annular protrusion (222).

7. The turn-up drum according to claim 5, characterized in that: The screw assembly (241) comprises: a screw body, the screw body being rotatably disposed inside the spindle assembly (10); A nut is threadedly connected to the screw body and can move axially along the screw body, and the circumferential side wall of the nut has at least one connecting protrusion, at least a portion of the connecting protrusion extends out of the main shaft assembly (10) and passes through the spacer sleeve (244) to be connected to the sliding sleeve assembly (242).

8. The turn-up drum according to claim 7, characterized in that: The spacer (244) is provided with a avoidance hole corresponding to the connecting protrusion and extending along the axial direction of the main shaft assembly (10).

9. The turn-up drum according to any one of claims 1 to 8, characterized in that: Each of the drum tiles (23) is respectively connected to at least one different support block (25); and / or Each of the drum tiles (23) is respectively connected to at least one different guide rod (26).

10. A molding machine system, characterized in that: The turn-up drum comprises the turn-up drum according to any one of claims 1 to 9.

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