A small hollow rubber tire manufacturing process and apparatus

Abstract

The application discloses a kind of small hollow rubber tire manufacturing process and equipment, process is extruded hollow rubber raw rubber strip by extrusion process;By oblique cutting mode, the cut angle α of rubber strip is 30°-45°;Rubber strip section is glued at cut, and after accurate butt joint of equipment to rubber strip two ends, it is compacted;The rubber strip that is bonded into annular is placed into vulcanization mould and is vulcanized to manufacture hollow tire.The compacting module of its equipment is centrally arranged on the workbench, and the translation module and the rotating module are both two groups arranged on the workbench and symmetrically arranged on the two sides of the compacting module;Rotating module clamps one end of rubber strip and rotates 90 degrees to make rubber strip end horizontal, translation module drives rotating module to translate to make the two sides of rubber strip end in horizontal state fold and contact, and the compacting module compacts the joint of the two sides of rubber strip.The equipment of the application cooperates with process to make rubber strip joint accurate butt joint and strict centering by mechanized mode, to ensure product quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tire processing, in particular to a small hollow rubber tire manufacturing process and equipment. BACKGROUND

[0002] At present, small vehicles such as electric balance cars generally use solid rubber tires. The manufacturing process is generally to extrude rubber raw material into a strip, then wrap it on a roller to form a ring, then weigh the ring-shaped raw material and put it into a vulcanization mold for vulcanization forming. The tire is a solid structure, which is poor in shock absorption compared with hollow tires, and consumes more rubber material. Since hollow rubber tires have the advantages of air-free, material-saving and good shock absorption, they are very suitable for the manufacture of electric balance cars. The original process and equipment for manufacturing solid rubber tires cannot be used for manufacturing hollow rubber tires, which requires adjusting the manufacturing process of hollow rubber tires and designing a device for small hollow rubber tire manufacturing to meet the needs of mechanized processing. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, provide a small hollow rubber tire manufacturing process and equipment, which meets the manufacturing needs of small hollow rubber tires of various specifications, produces small hollow rubber tires that are air-free, have good dynamic balance and shock absorption performance, and save materials and reduce costs.

[0004] The above technical purpose of the present application is realized by the following technical scheme: a small hollow rubber tire manufacturing process, comprising

[0005] Step 1: extruding hollow rubber raw material rubber strip through extrusion process, the cross-sectional shape of the rubber strip is consistent with the tire;

[0006] Step 2: cut the hollow structure rubber strip into equal length rubber strip segments by automatic oblique cutting method according to the tire circumference, the cutting angle a is 30°-45°;

[0007] Step 3: glue the rubber strip segments at the cutting edge, and use a small hollow rubber tire manufacturing device to accurately butt joint the two ends of the rubber strip and compact it;

[0008] Step 4: put the ring-shaped rubber strip bonded into a vulcanization mold for vulcanization to manufacture a hollow tire.

[0009] The utility model provides a kind of small hollow rubber tire manufacturing equipment, including workbench, translation module, rotating module and compaction module, compaction module is centrally arranged on workbench, translation module and rotating module are both two groups of being arranged on workbench and are symmetrically arranged on the two sides of compaction module;Rotating module includes stand, rotating cylinder and clamping cylinder, rotating cylinder is arranged on stand, clamping cylinder is installed on a limit plate, limit plate is installed on rotating cylinder, limit plate and clamping cylinder are rotated by rotating cylinder, limit plate forms the bayonet for rubber strip to pass through on the side of clamping cylinder, and the bayonet corresponds with the first jaw clamping space on clamping cylinder, the upper side of clamping cylinder is also provided with a positioning plate, positioning plate is passed through bayonet and clamping space from below after rubber strip, and upper limit position is limited, rubber strip one end is vertically passed through bayonet and clamping space to resist the positioning plate in initial state, and rubber strip is clamped by the first jaw, when two groups of rotating cylinder work, it is rotated 90 degrees, and left and right rubber strip end is horizontally and opposite;Compaction module includes compaction cylinder, the second jaw on compaction cylinder forms horizontal compaction space, and the end of rubber strip in horizontal state is opposite to compaction space;Translation module includes translation cylinder and guide rail, the lower part of stand is provided with sliding block, and sliding block is slidably arranged on guide rail, the cylinder shaft of translation cylinder is connected to stand, so that two sides translation cylinder drive two sides stand to be close to or far away when working, when two sides stand are close to, the end of rubber strip in horizontal state on two sides is moved to compaction space and is resisted, and the joint of rubber strip on two ends is compacted by the second jaw.

[0010] As an improvement, the translation module further includes a backing plate and an adjustment platform. The backing plate is installed on the workbench, and a sliding rail is arranged on the backing plate. The adjustment platform is arranged on the sliding rail to slide forward and backward. The translation cylinder is installed on the adjustment platform. The forward and backward positions of the adjustment platform are adjusted to change the reciprocating movement position of the translation cylinder on the stand.

[0011] As an improvement, the end surface of the translation cylinder is fixed to a cylinder frame. The cylinder frame is L-shaped, with the lower part installed on the adjustment platform and the upper part for horizontally installing the translation cylinder.

[0012] As an improvement, a knob is rotatably arranged on the backing plate. The knob is threadedly connected to the adjustment platform. The forward and backward positions of the adjustment platform are adjusted by rotating the knob.

[0013] As an improvement, a scale is arranged on the workbench corresponding to the adjustment platform. When the adjustment platform is in the debugging position, the scale indicates the forward and backward positions.

[0014] As an improvement, a control module and a touch screen are further included. The control module is used to preset the tire diameter parameter, the docking time parameter, and the compaction time parameter. The touch screen is signal-connected with the control module for the operator to modify the parameters. The control module is signal-connected with each cylinder for start-stop control.

[0015] As an improvement, two sets of foot switches located at the lower part of the workbench and two sets of buttons located on the workbench are further included, and the foot switches and the buttons are in signal connection with the control module; when the operator steps on the foot switches with both feet, the clamping cylinder works to clamp the rubber strip by the first clamping jaw; when the operator presses the buttons with both hands, the rotating cylinder works to adjust the end of the rubber strip to be horizontal, and then the translation cylinder works to push the stands to move towards each other, completing the butt joint of the end of the rubber strip at the compacting space, and then the compacting cylinder works to compact the joint of the rubber strip by the second clamping jaw.

[0016] As an improvement, a limiting block is arranged at the middle part of the guide rail, the limiting block blocks the stand and limits the limit position of the folding of the two stands.

[0017] As an improvement, the compacting module further includes a stand column and a mounting plate, the stand column is installed on the workbench, the compacting cylinder is arranged at the top end of the stand column, the mounting plate is U-shaped, surrounds the compacting cylinder from above, and is installed and fixed with the compacting cylinder and the stand column from both sides through fasteners.

[0018] The process of the present application directly changes the shape of the extrusion die, so that the cross section of the extruded green material is a hollow ring structure, the green material is automatically cut, the weight after automatic cutting is within the error range, manual intervention is not required, and through the design of the cutting angle, the subsequent bonding surface has sufficient area, and the bonding is firm and reliable.

[0019] The device of the present application positions and clamps the two ends of the hollow rubber strip through a mechanical structure, and relies on mechanical rotation to accurately complete the butt joint and compaction of the rubber strip from a strip to a ring, saving time and effort for the operator, and effectively ensuring the accuracy of the butt joint and compaction of the end of the rubber strip. The overall structure does not limit other positions except the end of the rubber strip during the movement, butt joint and compaction, so that the tire is not extruded by excess force during compaction, which is more beneficial to the uniform stress of the butt joint and ensures the processing quality.

[0020] The device and process cooperate well to strictly center the butt joint of the rubber strip, ensuring that the vulcanized tire can meet the dynamic balance requirements, and the vehicle will not shake during high-speed driving. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a small hollow rubber tire manufacturing process diagram of the present application.

[0022] Figure 2 is a schematic diagram of the three-dimensional structure of the present application.

[0023] Figure 3 is a schematic diagram of the partial three-dimensional structure of the present application.

[0024] Figure 4 is a perspective view of the translation module of the present application. Figure 1 .

[0025] Figure 5 is a perspective view of the rotation module of the present application.

[0026] Figure 6 is a perspective view of the translation module of the present application. Figure 2 .

[0027] Figure 7 is a perspective view of the compaction module of the present application. DETAILED DESCRIPTION

[0028] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0029] As Figures 1-7 shown, it is a specific embodiment of the present application small hollow rubber tire manufacturing process and equipment.

[0030] A small hollow rubber tire manufacturing process, characterized in that: comprising

[0031] Step 1: extruding hollow rubber green rubber strip by extrusion process, the cross-sectional shape of the strip is consistent with the tire;

[0032] Step 2: according to the tire circumference by automatic oblique cutting method into the hollow structure of the strip into equal length of strip segment, the cutting angle α is 30°-45°;

[0033] Step 3: strip segment cutting place coated with glue, using the small hollow rubber tire manufacturing equipment to accurately butt joint the two ends of the strip after compaction;

[0034] Step 4: the adhesive into a ring of rubber strip into the vulcanization mold for vulcanization to manufacture hollow tire.

[0035] The previous solid tire manufacturing is to extrude the rubber long strip material wound on the metal cylinder to form a green ring, the green ring is taken off manually weighed, to ensure that the green ring weight within an error precision, too heavy or too light will be formed after vulcanization defective, this process is time-consuming and labor-intensive.

[0036] The new process of the application is to directly change the shape of the extrusion die, so that the extruded raw material section is a hollow ring structure, and the extruded raw material is automatically cut off. The weight after automatic cutting is within the error range, without manual intervention. Attention should be paid to the fact that the cut is at a certain angle with the raw material axis, that is, the cut angle a is designed to be in the range of 30°-45°, to ensure that the subsequent bonding surface has sufficient area and is firmly and reliably bonded. However, due to slight differences in raw material formula, there is a certain error (1-6 mm) in the length of each segment after oblique cutting, so it is required that the butt joint be strictly centered and not deviated, otherwise the hollow tire will not be well balanced and will be a defective product. The equipment of the application realizes the precise butt joint and strict centering through good mechanical structure, and can meet the manufacturing requirements of hollow pneumatic-free rubber tires of different diameters.

[0037] As shown in Figure 1 , the hollow rubber raw material strip is directly extruded through the extrusion process, the strip is a hollow structure, the strip is cut into segments by oblique cutting, the cut angle a is generally about 30°-45°, the cut part of the strip is glued (i.e. Figure 1 a), and the equipment of the application is used to accurately butt joint the two ends of the strip and compact it (i.e. Figure 1 b, c, d), the ring-shaped strip is placed in a vulcanization mold for vulcanization (i.e. Figure 1 e) to complete the manufacturing of small hollow rubber tires. The hollow tire has better shock absorption than the solid tire and saves materials. The key point of the process is that the butt joint must be accurate. If the joint is deviated during butt joint, the vulcanized tire cannot meet the dynamic balance requirements, and the vehicle will shake at high speed. After using the equipment to replace manual precise joint butt joint, the manufacturing of small hollow rubber tires is greatly guaranteed.

[0038] The embodiment comprises a workbench 1, a translation module, a rotation module and a compaction module, the compaction module is centrally arranged on the workbench 1, and the translation module and the rotation module are both arranged on the workbench 1 in two groups and symmetrically arranged on the two sides of the compaction module; the rotation module comprises a stand 4, a rotation cylinder 18 and a clamping cylinder 22, the rotation cylinder 18 is arranged on the stand 4, the clamping cylinder 22 is installed on a limiting plate 10, the limiting plate 10 is installed on the rotation cylinder 18, the limiting plate 10 and the clamping cylinder 22 are driven to rotate by the rotation cylinder 18, the limiting plate 10 forms a bayonet 101 on the side of the clamping cylinder 22 for the rubber strip to pass through, and the bayonet 101 corresponds to a clamping space of the first clamping jaw 5 on the clamping cylinder 22, a positioning plate 9 is further arranged above the clamping cylinder 22, the positioning plate 9 defines an upper limit position after the rubber strip passes through the bayonet 101 and the clamping space from below, in the initial state, one end of the rubber strip is in a vertical state and passes through the bayonet 101 and the clamping space to abut against the positioning plate 9, and the rubber strip is clamped by the first clamping jaw 5, when the two groups of rotation cylinders 18 work, the rubber strip ends on the left and right sides are rotated by 90 degrees and are in a horizontal state and opposite to each other; the compaction module comprises a compaction cylinder 7, a second clamping jaw 71 on the compaction cylinder 7 forms a horizontal compaction space, and the rubber strip ends in the horizontal state are opposite to the compaction space; the translation module comprises a translation cylinder 2 and a guide rail 20, a sliding block 19 is arranged on the lower part of the stand 4, the sliding block 19 is slidably arranged on the guide rail 20, and a cylinder shaft of the translation cylinder 2 is connected to the stand 4, so that the two sides of the translation cylinder 2 drive the two sides of the stand 4 to move close to or away from each other when working, when the two sides of the stand 4 move close to each other, the rubber strip ends in the horizontal state on the two sides are moved to abut against the compaction space, and the joints of the rubber strips on the two ends are compacted by the second clamping jaw 71.

[0039] In use of the device of the present application, as shown in Figure 2 , 3 , the initial state of the clamping cylinder 22, the rubber strip cut into segments in the way of beveling is glued, and the two ends pass through the clamping space of the first clamping jaw 5 from the bayonet 101 below until the ends abut against the positioning plate 9 above; the rubber strip itself has a tendency to change back to the original shape after being bent, the well-coordinated bayonet 101 limits the first clamping jaw 5 that is not closed to position the rubber strip, thereby reducing the degree of difficulty for the operator. Then drive the two sides of the clamping cylinder 22 to close the two ends of the rubber strip by the two sides of the first clamping jaw 5 (as shown in Figure 1 b); then drive the two sides of the rotation cylinder 18 to rotate 90 degrees towards each other, so that the rubber strip ends on the left and right sides are in a horizontal state and opposite to each other (as shown in Figure 1 c); then drive the two sides of the translation cylinder 2 to move the rubber strip ends in the horizontal state on the two sides to abut against the compaction space, and then drive the compaction cylinder 7 to close the second clamping jaw 71 on the upper and lower sides to compact the joint part of the two ends of the rubber strip (as shown in Figure 1The device of the application positions the two ends of the hollow rubber strip through the mechanical structure, and relies on the mechanical rotation to replace the manual accurate butt joint and compaction of the strip from the strip shape to the ring shape, so that the operator is more time-saving and labor-saving, and the accuracy of the butt joint and compaction of the strip end is effectively ensured; the overall structure does not limit other positions except the ends of the strip during the movement, butt joint and compaction, so that the tire is not extruded by excessive external force during the compaction and forming process, and is more beneficial to being uniformly limited in the ring shape, the butt joint can be uniformly stressed and compacted, the processing quality is ensured, and the yield is ensured.

[0040] As an improved specific embodiment, the translation module further comprises a base plate 17 and an adjusting platform 15, the base plate 17 is installed on the workbench 1, the base plate 17 is provided with a sliding rail 171, the adjusting platform 15 is arranged on the sliding rail 171 to slide forward and backward, and the translation cylinder 2 is installed on the adjusting platform 15 to adjust the reciprocating movement position of the translation cylinder 2 to the stand 4 by changing the forward and backward positions of the adjusting platform 15.

[0041] As shown in Figure 2 , 3 , 6, the sliding rail 171 is arranged on the base plate 17, so that the adjusting platform 15 can slide forward and backward on the rail 171 to change the initial position of the translation cylinder 2. Because the small hollow rubber tire blank has different diameters, the movement range of the end of the rubber strip clamped at the first jaw 5 can be adjusted by adjusting the initial position of the translation cylinder 2 under the condition that the stroke of the translation cylinder 2 is unchanged. If a tire blank with a larger (smaller) diameter is to be processed, the adjusting platform 15 and the translation cylinder 2 are moved outward (inward) by a suitable distance, so that the size of the two ends of the rubber strip is more suitable when the two ends are folded and butt jointed in the later process, avoiding excessive extrusion deformation (too far away from the two ends) of the two ends. In general, the applicability of the device is improved, and more specifications of hollow tires can be processed.

[0042] As an improved specific embodiment, the end face of the translation cylinder 2 is fixed to a cylinder frame 3, the cylinder frame 3 is L-shaped, the lower part is installed on the adjusting platform 15, and the upper part is used for horizontally installing the translation cylinder 2.

[0043] As shown in Figure 2 , 3 , 4, 6, the L-shaped cylinder frame 3 is firmly installed with the adjusting platform 15 through the lower horizontal plate, and the vertical plate on the upper part forms a structure for horizontally installing the translation cylinder 2, so as to ensure the accurate arrangement of the translation cylinder 2 and the stable translation of the stand 4.

[0044] As an improved specific embodiment, the gasket plate 17 is rotatably provided with a knob 172, which is threadedly connected to the adjusting platform 15, and the front and back positions of the adjusting platform 15 are adjusted by rotating the knob 172.

[0045] As shown in Figure 2 , 3 , 4, 6, the knob 172 is threadedly connected to the adjusting platform 15, which well defines the position of the adjusting platform 15 in the unadjusted state, so that the adjusting platform 15 is stably locked at a position of the slide rail 171; when the front and back positions of the adjusting platform 15 need to be adjusted, the knob 172 is rotated by the operator applying force, thereby driving the adjusting platform 15 to translate and realize position adjustment.

[0046] As an improved specific embodiment, the workbench 1 is provided with a scale 173 corresponding to the adjusting platform 15, and the front and back positions of the adjusting platform 15 are prompted by the scale 173 in the adjusted position.

[0047] As shown in Figure 2 , 3 , the scale 173 can be set to correspond to the size of the tire to be processed, and the scale 173 has marks on the surface according to different tire circumferences; when a tire of a certain size needs to be processed, the operator directly adjusts the adjusting platform 15 to move to the corresponding scale 173 for alignment, which facilitates to reduce the adjustment difficulty.

[0048] As an improved specific embodiment, the control module 13 and the touch screen 12 are further included, the control module 13 is used for presetting tire diameter parameters, docking time parameters and compaction time parameters, the touch screen 12 is signal connected with the control module 13 for the operator to modify parameters, and the control module 13 is signal connected with each cylinder for start-stop control.

[0049] As shown in Figure 2 , the manufacturer can pre-design the program in the control module 13 and each parameter of the tire to be processed, the operator can intuitively understand, for example, tire diameter parameters, docking time parameters and compaction time parameters through the touch screen 12, and can set and modify, and after modification, each cylinder can start and stop according to the parameters, and the operator can manually adjust the mechanism according to the parameters.

[0050] As an improved specific embodiment, two sets of foot switches 14 are arranged at the lower part of the workbench 1, and two sets of buttons 11 are arranged on the workbench 1, and the foot switches 14 and the buttons 11 are in signal connection with the control module 13; when the operator steps on the foot switches 14 with both feet, the clamping cylinder 22 is driven to work, and the first clamping jaw 5 clamps the rubber strip; when the operator presses the buttons 11 with both hands, the rotating cylinder 18 is driven to work, the end of the rubber strip is adjusted to be horizontal, then the translation cylinder 2 is driven to work to push the stands 4 to move towards each other, the ends of the rubber strips on both sides are butted at the compacting space, and then the compacting cylinder 7 is driven to work to compact the joint of the rubber strips by the second clamping jaw 71.

[0051] As shown in Figure 2 , the semi-automatic mechanical equipment needs to consider the protection of the operator to avoid the hands of the operator entering the working area and being damaged by the mechanism. The two sets of foot switches 14 are further arranged, which are operated when the operator holds the rubber strip with both hands and places it at the first clamping jaw 5. At this time, the operator has no hands to use, and can rely on the feet to step on the foot switches 14 to drive the clamping cylinder 22 to clamp the rubber strip by the first clamping jaw 5, so as to free the hands. The subsequent operation is to press the buttons 11 on both sides by the hands to drive the subsequent mechanism to work, which avoids the hands from entering the working area and being damaged by the mechanism, ensures the safety, and enables the mechanism to orderly complete the process.

[0052] As an improved specific embodiment, the middle part of the guide rail 20 is provided with a limiting block 21, and the limiting block 21 blocks the stand 4 to limit the limit position of the folding of the stands 4.

[0053] As shown in Figure 4 , the stand 4 is arranged on the sliding block 19, and the sliding block 19 stably realizes translation on the guide rail 20. In order to protect the stand 4 and the mechanism thereon and the compacting module in the middle part from being damaged due to excessive folding, the limiting block 21 is arranged. If the stand 4 and the sliding block 19 are excessively moved due to improper operation, they will be blocked by the limiting block 21, so that the mechanism cannot continue to fold, and the collision and damage between the mechanisms are avoided, and the service life of the mechanism is prolonged.

[0054] As an improved specific embodiment, the compacting module further comprises a stand column 8 and a mounting plate 6. The stand column 8 is installed on the workbench 1, the compacting cylinder 7 is arranged at the top end of the stand column 8, the mounting plate 6 is in a U shape, surrounds the compacting cylinder 7 from the top, and is installed and fixed with the compacting cylinder 7 and the stand column 8 from both sides through fasteners.

[0055] As shown in Figure 2 , 3As shown in FIG. 7, the column 8 provides a height for the arrangement of the compaction cylinder 7, so that the compaction cylinder 7 and the compaction space are in a proper height position, and the overall annular space below the joint compaction has enough space to suspend and accommodate; the U-shaped mounting plate 6 covers the compaction cylinder 7, and is locked with the compaction cylinder 7 and the column 8 through the fasteners installed on the mounting plate 6, which can ensure simple structure, firm installation, and no influence on the activity space of the rubber strip in the processing.

[0056] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A compact hollow rubber tire manufacturing apparatus characterized by: The utility model provides a kind of rubber strip cutting and rolling machine, including workbench (1), translation module, rotating module and compaction module, the compaction module is centrally arranged on workbench (1), and the translation module and rotating module are both two groups of being arranged on workbench (1) and symmetrically arranged on the two sides of compaction module;The rotating module includes stand (4), rotating cylinder (18) and clamping cylinder (22), the rotating cylinder (18) is arranged on stand (4), the clamping cylinder (22) is installed on a limit plate (10), the limit plate (10) is installed on rotating cylinder (18), limit plate (10) and clamping cylinder (22) are rotated by rotating cylinder (18), the limit plate (10) forms the bayonet (101) for rubber strip to pass through on the side of clamping cylinder (22), and the bayonet (101) corresponds with the first jaw (5) clamping space on clamping cylinder (22), the upper side of clamping cylinder (22) is also provided with a positioning plate (9), the positioning plate (9) is limited after rubber strip passes through bayonet (101) and clamping space from below upper limit position, and rubber strip one end is vertically state and passes through bayonet (101) and clamping space to resist the positioning plate (9) in initial state, and rubber strip is clamped by the first jaw (5), when two groups of rotating cylinder (18) work, rotate 90 degrees, and make left and right rubber strip end to be horizontal state and relative;The compaction module includes compaction cylinder (7), and the second jaw (71) on compaction cylinder (7) forms horizontal compaction space, and the end of rubber strip in horizontal state is opposite to compaction space;The translation module includes translation cylinder (2) and guide rail (20), the lower part of stand (4) is provided with sliding block (19), the sliding block (19) can be slidably arranged on guide rail (20), the cylinder shaft of translation cylinder (2) is connected to stand (4), so that two sides translation cylinder (2) drive two sides stand (4) to be close to or far away when working, when two sides stand (4) are close to, make the end of two sides rubber strip in horizontal state move to compaction space and resist, and the joint of two ends rubber strip is compacted by the second jaw (71).

2. A compact hollow rubber tire manufacturing apparatus according to claim 1, characterized by: The translation module further includes backing plate (17) and adjusting platform (15), the backing plate (17) is installed on workbench (1), the sliding rail (171) is provided on the backing plate (17), the adjusting platform (15) is provided on the sliding rail (171) and slides forward and backward, the translation cylinder (2) is installed on the adjusting platform (15), and the reciprocating movement position of the translation cylinder (2) to the stand (4) is adjusted by the forward and backward position change of the adjusting platform (15).

3. A compact hollow rubber tire manufacturing apparatus according to claim 2, characterized by: The end surface of the translation cylinder (2) is fixed to a cylinder frame (3), the cylinder frame (3) is L-shaped, the lower part is installed on the adjusting platform (15), and the upper part is horizontally installed for the translation cylinder (2).

4. A compact hollow rubber tire manufacturing apparatus according to claim 2, characterized by: The knob (172) is rotatably provided on the backing plate (17), the knob (172) is screw-connected to the adjusting platform (15), and the forward and backward position of the adjusting platform (15) is adjusted by rotating the knob (172).

5. A small-sized hollow rubber tire manufacturing apparatus according to claim 2 or 3 or 4, characterized by: The workbench (1) is provided with a scale (173) corresponding to the adjusting platform (15), and the adjusting platform (15) prompts the front and rear positions corresponding to the scale (173) in the debugging position.

6. A compact hollow rubber tyre manufacturing apparatus as claimed in claim 1 or 2 or 3 or 4, wherein: The control module (13) is used for presetting the tire diameter parameter, the docking time parameter and the compaction time parameter, and the touch screen (12) is in signal connection with the control module (13) for parameter modification by the operator, and the control module (13) is in signal connection with each cylinder for start-stop control.

7. A small-sized hollow rubber tire manufacturing apparatus according to claim 6, characterized by: The workbench (1) is provided with two groups of foot switches (14) at the lower part and two groups of buttons (11) on the workbench (1), and the foot switches (14) and the buttons (11) are in signal connection with the control module (13); when the operator steps on the foot switches (14) with both feet, the clamping cylinder (22) works to clamp the rubber strip by the first clamping jaw (5); when the operator presses the buttons (11) with both hands, the rotating cylinder (18) works to adjust the end of the rubber strip to be horizontal, and then the translation cylinder (2) works to push the stands (4) to move towards each other, thereby completing the docking of the end of the rubber strip at the compaction space, and then the compaction cylinder (7) works to compact the joint of the rubber strip by the second clamping jaw (71).

8. A compact hollow rubber tyre manufacturing apparatus as claimed in claim 1 or 2 or 3 or 4, wherein: The middle part of the guide rail (20) is provided with a limiting block (21), and the limiting block (21) blocks the stand (4) to limit the limit position of the folding of the two stands (4).

9. A compact hollow rubber tyre manufacturing apparatus as claimed in claim 1 or 2 or 3 or 4, wherein: The compaction module further comprises a stand column (8) and a mounting plate (6), the stand column (8) is installed on the workbench (1), the compaction cylinder (7) is arranged at the top end of the stand column (8), the mounting plate (6) is U-shaped, which surrounds the compaction cylinder (7) from above, and is installed and fixed with the compaction cylinder (7) and the stand column (8) from both sides through fasteners.

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