A rubber strip curling machine

Abstract

The application discloses a rubber strip curling machine and belongs to the technical field of rubber product processing. The rubber strip curling machine comprises a rack, a positioning seat fixedly installed on the rack, a supporting cylinder fixedly installed on one side of the positioning seat, a curling shaft rotatably installed in the supporting cylinder, a moving sleeve slidingly installed on the curling shaft and located at the position of the positioning seat, a fixed sleeve sleeved on one end of the curling shaft and away from the supporting cylinder, roller strips correspondingly installed on the moving sleeve and the fixed sleeve, inclined waist-shaped grooves symmetrically arranged at two ends of the roller strips, guide shafts arranged on connecting ears, the guide shafts being constrainedly installed in the waist-shaped grooves, a threaded sleeve fixedly installed on the curling shaft, the threaded sleeve being in threaded connection with the moving sleeve, and a positioning device arranged between the positioning seat and the moving sleeve. The application solves the technical problems of high procurement cost of the I-beam, inconvenience in unloading and low curling efficiency, and is widely applied to rubber strip processing.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of rubber product processing, and particularly relates to a rubber strip coiling machine. BACKGROUND

[0002] The rubber strip coiling machine is an important component of a rubber sheet cooling system, and is generally the last link in the device, and is mainly used for coiling the cooled rubber strip product.

[0003] The current production mode of the mixed rubber strip is generally: rubber mixing - sheet pressing - cooling - multiple longitudinal cutting - coiling. In order to facilitate storage, transportation and use in subsequent processes (such as feeding into a cold feeding extruder), in some cases, the cooled wide rubber sheet (usually 600-900 mm wide) needs to be directly cut into multiple strips (for example, 5-7 strips) of the same or different widths by using a multiple strip longitudinal cutting machine. Then, the multiple strips of the same or different widths are simultaneously coiled into rubber strip coils of a certain diameter by the rubber strip coiling machine. Finally, the coiled rubber strip is unloaded from the rubber strip coiling machine.

[0004] At present, the cooled mixed rubber sheet is generally stored and transported by using the mode of stacking the wide rubber sheet in piles by swinging; in a few cases, the wide rubber sheet or the multiple strips are directly coiled, but only for the relatively thin (about 4 mm or so) wide rubber sheet, and in order to facilitate the unloading of the coiled rubber sheet, the rubber sheet is generally directly coiled on a spool, the full spool is unloaded from the spool driving shaft (generally a square shaft), and then an empty spool is replaced for coiling.

[0005] Wang Feng et al. (CN216155086U) controls the spool by a preset program to perform the coiling of the mixed rubber sheet on the spool, so that the work efficiency is improved and the operation process is simplified.

[0006] Zhang Hua et al. (CN109051965A) designs a rubber sheet strip cutting and coiling device, which can automatically cut the rubber sheet and coil the rubber sheet on the spool, and the coiled spool enters the next production process through a mechanical arm, so that the production efficiency is improved.

[0007] Geng Peng et al. (CN100422666A) sets different components on the support plate to achieve the effect of uniformly distributing the release film on the peripheral surface of the coiling roller, and reduces the growth rate of the tension of the release film.

[0008] Liu Yonghua et al. (CN201516997U) adjusts the position of the piston of the electric air cylinder through the control device to control the position of the movable support, so that the same friction is maintained under the condition that the weight of the rubber sheet on the coiling roller is different, the flatness of the rubber sheet is increased, and the coiling consistency is achieved.

[0009] Li Xue Mei et al. (CN201309175Y) designed a device, which can automatically separate and take up the waste rubber and waste cloth on both sides of the waste edge of the rubber strip multi-cutter longitudinal cutting device, has high efficiency, flat winding, and saves operation time.

[0010] From the above prior art, it can be seen that in the field of rubber strip coiling machine, the coiling device usually uses an I-shaped wheel, and through some mechanical or control means, the production efficiency is improved and the utilization of products is facilitated. However, the procurement cost of the I-shaped wheel is high, the coiling is not convenient, and the coiling efficiency is low.

[0011] Therefore, in the field of rubber product processing equipment technology, there is still a need to research and improve the rubber strip coiling machine, which is also a research hotspot and focus in the field of rubber product processing technology, and is the starting point for the completion of the present application. SUMMARY

[0012] Therefore, the technical problem to be solved by the present application is to provide a rubber strip coiling machine to solve the technical problem of high procurement cost of I-shaped wheel, inconvenient coiling and low coiling efficiency.

[0013] To solve the above technical problems, the technical scheme of the present application is: a rubber strip coiling machine, comprising a rack, a positioning seat fixedly installed on the rack, a supporting cylinder fixedly installed on one side of the positioning seat, a coiling shaft rotatably installed in the supporting cylinder, a power device connected to one end of the coiling shaft, the other end of the coiling shaft extending out of the supporting cylinder and penetrating through the positioning seat, a moving sleeve slidingly installed on the coiling shaft at the position of the positioning seat, a fixed sleeve sleeved on the end of the coiling shaft away from the supporting cylinder, a plurality of connecting ears radially extending and corresponding to each other provided on the moving sleeve and the fixed sleeve, a roller strip installed between each set of corresponding connecting ears on the moving sleeve and the fixed sleeve, an inclined waist-shaped groove symmetrically provided at both ends of the roller strip, a guide shaft provided on the connecting ear, the guide shaft being constrainedly installed in the waist-shaped groove, a threaded sleeve fixedly installed on the coiling shaft, the threaded sleeve being threadedly connected with the moving sleeve, and a positioning device provided between the positioning seat and the moving sleeve.

[0014] As an improvement, the positioning device comprises a positioning pin slidingly installed on the positioning seat along the moving sleeve, and a positioning groove extending axially along the moving sleeve and matched with the positioning pin is provided on the outer surface of the moving sleeve.

[0015] As a further improvement, a compression spring is provided between the positioning pin and the positioning seat.

[0016] As a further improvement, a plug pin is slidingly installed on the positioning seat along the positioning pin, and a pin hole matched with the plug pin is provided on the positioning pin.

[0017] As a further improvement, the at least one roller strip is provided with a plurality of rubber gripping spikes.

[0018] As a further improvement, a shaft sleeve is arranged between the fixing sleeve and the curling shaft.

[0019] As a further improvement, a slitting roller is rotatably arranged on the frame, the slitting roller is arranged in parallel with the curling shaft and located at one side of the curling shaft, and a plurality of rubber blocking plates are arranged on the slitting roller in intervals.

[0020] As a further improvement, the rubber blocking plates are sleeved on the slitting roller, a spacer sleeve is arranged between two adjacent rubber blocking plates, and the rubber blocking plate located at the edge is fixed on the slitting roller by a fastener.

[0021] After the above technical scheme is adopted, the present application has the following advantages:

[0022] The positioning device of the present application can make the moving sleeve relatively rotate with the curling shaft and slide along the axial direction of the curling shaft, or make the moving sleeve synchronously rotate with the curling shaft, so that the guide shaft slides in the waist-shaped groove, the rotating diameter of the roller strip is increased or decreased, the diameter of the grid cage is expanded or contracted, the rubber strip is in a winding state or a post-winding unwinding state, the present application does not need a spool, the rubber strip is conveniently unwound, and the winding efficiency of the rubber strip is improved; and the curling shaft 4 of the present application has one end of the fixing sleeve 11 arranged in cantilever, when the grid cage is contracted, the rubber roll can be quickly unwound from one side of the fixing sleeve 11, and the unwinding efficiency is greatly improved.

[0023] Since the at least one roller strip is provided with a plurality of rubber gripping spikes, the rubber can be gripped during the rotation, and the possibility of the rubber film sliding off the grid cage is successfully avoided, so that the stability of the work is ensured.

[0024] Since the spacer sleeve is arranged between two adjacent rubber blocking plates, when the specification of the rubber strip changes, the spacer sleeve with different lengths can be replaced, so that the width between two adjacent rubber blocking plates is suitable for the width of the rubber strip. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0026] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions that the application can be implemented, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the application can produce, should still fall within the scope of the technology disclosed by the application.

[0027] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the application;

[0028] Figure 2 is a schematic diagram of the mounting structure of the curling shaft in an embodiment of the application;

[0029] Figure 3 is a schematic diagram of the structure of the roller strip in an embodiment of the application;

[0030] Figure 4 is a schematic diagram of the structure of the moving sleeve in an embodiment of the application;

[0031] Figure 5 is a schematic diagram of the structure of the rubber grabbing spike on the roller strip in an embodiment of the application;

[0032] Figure 6 is a schematic diagram of the structure of the slitting device in an embodiment of the application;

[0033] In the figure: 1, frame, 2, positioning seat, 3, support cylinder, 4, curling shaft, 5, power device, 6, threaded sleeve, 7, moving sleeve, 701, positioning groove, 8, connecting lug, 9, roller strip, 10, rubber grabbing spike, 11, fixed sleeve, 12, end cover, 13, slitting roller, 14, rubber blocking plate, 15, spacer sleeve, 16, positioning pin, 17, compression spring, 18, latch, 19, waist-shaped groove, 20, guide shaft, 21, shaft sleeve. DETAILED DESCRIPTION

[0034] The embodiments of the application are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the application from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

[0035] The terms such as "front", "back", "left", "right", "inner", "outer", "middle" etc. cited in the specification are only for the convenience of clear description, not to limit the scope of the application that can be implemented, and the change or adjustment of their relative relationship is also considered as the scope of the application that can be implemented without substantial change of technical content.

[0036] As Figure 1 and Figure 2 shown, the present application provides a rubber strip curling machine, comprising a frame 1, a positioning seat 2 is fixedly installed on the frame 1, a support cylinder 3 is fixedly installed on one side of the positioning seat 2, a curling shaft 4 is rotatably installed in the support cylinder 3 through a bearing, both ends of the curling shaft 4 extend out of the support cylinder 3, one end of the curling shaft 4 is connected with a power device 5, the power device 5 is usually a motor and a speed reducer combination, the power output shaft of the speed reducer is connected with the curling shaft 4 through belt transmission or chain transmission or gear transmission, the other end of the curling shaft 4 extends out of the support cylinder 3 and penetrates through the positioning seat 2, a moving sleeve 7 is slidably installed on the curling shaft 4 at the position of the positioning seat 2, a fixed sleeve 11 is sleeved on the end of the curling shaft 4 away from the support cylinder 3, the end of the fixed sleeve 11 away from the moving sleeve 7 abuts against an end cover 12, the end cover 12 is fixed on the curling shaft 4 through fasteners, the axial displacement of the fixed sleeve 11 is limited, an axle sleeve 21 is arranged between the fixed sleeve 11 and the curling shaft 4, so that the fixed sleeve 11 and the curling shaft 4 can relatively rotate, a plurality of connecting ears 8 radially extending and corresponding to each other are arranged on the moving sleeve 7 and the fixed sleeve 11, that is, the number and position of the connecting ears 8 on the moving sleeve 7 correspond to the number and position of the connecting ears 8 on the fixed sleeve 11, as Figure 2 and Figure 3As shown, the roller strip 9 is installed between each set of corresponding connecting ears 8 on the movable sleeve 7 and the fixed sleeve 11, one end of the roller strip 9 is connected to the connecting ear 8 on the movable sleeve 7, and the other end is connected to the connecting ear 8 on the fixed sleeve 11, the plurality of roller strips 9 are arranged in a lattice structure in the circumferential direction, which can reduce the adhesion of the film to the roller and save materials and reduce weight, the two ends of the roller strip 9 are symmetrically provided with inclined waist-shaped grooves 19, the inclined direction of the waist-shaped groove 19 connected to the movable sleeve 7 is towards the rotation center of the curling shaft 4 in the extension direction of the waist-shaped groove 19, the rotation radius of the end of the waist-shaped groove 19 close to the movable sleeve 7 is greater than the rotation radius of the end away from the movable sleeve 7, the inclined direction of the waist-shaped groove 19 connected to the fixed sleeve 11 is away from the rotation center of the curling shaft 4 in the extension direction of the waist-shaped groove 19, the rotation radius of the end of the waist-shaped groove 19 close to the fixed sleeve 11 is greater than the rotation radius of the end away from the fixed sleeve 11, and the inclination angle of the waist-shaped groove 19 connected to the movable sleeve 7 is equal to the inclination angle of the waist-shaped groove 19 connected to the fixed sleeve 11, a guide shaft 20 is arranged on the connecting ear 8, the guide shaft 20 is constrained to be installed in the waist-shaped groove 19, the guide shaft 20 slides in the waist-shaped groove 19, and the diameter of the guide shaft 20 is matched with the width of the waist-shaped groove 19, the curling shaft 4 is fixedly provided with a threaded sleeve 6, the threaded sleeve 6 is threadedly connected with the movable sleeve 7, a positioning device is arranged between the positioning seat 2 and the movable sleeve 7, the positioning device can make the movable sleeve 7 relatively rotate with the curling shaft 4 and slide along the curling shaft 4 in the axial direction, or make the movable sleeve 7 synchronously rotate with the curling shaft 4, when the movable sleeve 7 relatively rotates with the curling shaft 4 and slides along the curling shaft 4 in the axial direction, the threaded sleeve 6 can drive the movable sleeve 7 to slide along the curling shaft 4 in the axial direction, so that the guide shaft 20 slides in the waist-shaped groove 19, the rotation diameter of the roller strip 9 is changed, the diameter of the lattice is expanded or contracted, the rubber strip is in a winding state or a winding state after uncoiling, the embodiment of the application does not need a spool, the rubber strip is convenient to uncoil, and the winding efficiency of the rubber strip is improved; and the curling shaft 4 of the application has one end of the fixed sleeve 11 arranged in a cantilevered manner, the outer diameter of the fixed sleeve 11 is smaller than the diameter of the lattice after contraction, when the lattice is contracted, the film can be quickly unloaded from one side of the fixed sleeve 11, and the uncoiling efficiency is greatly improved.

[0037] As Figure 2 and Figure 4As shown, the positioning device comprises a positioning pin 16 radially slidingly mounted on the positioning seat 2, the outer surface of the moving sleeve 7 is provided with a positioning groove 701 extending axially along the moving sleeve 7 and matched with the positioning pin 16, the compression spring 17 is arranged between the positioning pin 16 and the positioning seat 2, the end of the positioning pin 16 away from the moving sleeve 7 extends out of the positioning seat 2 and is provided with a limiting portion, the compression spring 17 is sleeved on the positioning pin 16 and abuts between the limiting portion and the positioning seat 2, under the elastic force of the compression spring 17, the positioning pin 16 can be detached from the positioning groove 701, so that the moving sleeve 7 rotates synchronously with the curling shaft 4, the positioning seat 2 is provided with a plug 18 radially slidingly mounted on the positioning pin 16, the positioning pin 16 is provided with a pin hole matched with the plug 18, in order to facilitate the plug 18 to be smoothly inserted into the positioning pin 16, the pin hole is usually arranged as an annular groove matched with the plug 18, when the positioning pin 16 compresses the compression spring 17, the plug 18 is inserted into the pin hole after the positioning pin 16 is inserted into the positioning groove 701, the positioning pin 16 limits the rotation of the moving sleeve 7, the moving sleeve 7 realizes axial reciprocating sliding along the curling shaft 4 under the forward and reverse rotation of the threaded sleeve 6, so as to realize the expansion and contraction of the lattice cage, and facilitate the rubber strip to be unloaded.

[0038] As shown in Figure 2 and Figure 5 At least one roll strip 9 is provided with a plurality of rubber grabbing spikes 10, the arrangement direction of the plurality of rubber grabbing spikes 10 is arranged at intervals along the extension direction of the roll strip 9, the shape of the rubber grabbing spike 10 is conical or multi-prism, the rubber can be grabbed during the rotation process, the possibility of the rubber sheet sliding off the lattice cage is successfully avoided, so as to ensure the stability of the work.

[0039] As shown in Figure 1 and Figure 6 The rack 1 is rotatably mounted with a slitting roller 13 through a bearing seat, the slitting roller 13 is arranged in parallel with the curling shaft 4 and located on the upstream side of the curling shaft 4, the slitting roller 13 is provided with a plurality of interval arranged rubber blocking plates 14, the rubber blocking plate 14 is sleeved on the slitting roller 13, the width between the adjacent two rubber blocking plates 14 is matched with the width of the rubber strip, and the rubber strip is introduced to the lattice cage through the slitting roller 13 to realize the curling of the rubber strip. The spacer sleeve 15 is arranged between the adjacent two rubber blocking plates 14, and the rubber blocking plate 14 located at the edge is fixed on the slitting roller 13 through the fastener, when the specification of the rubber strip changes, the spacer sleeve 15 with different lengths can be replaced, so that the width between the adjacent two rubber blocking plates 14 is suitable for the width of the rubber strip.

[0040] In use, as shown in Figure 2As shown, the motor reducer drives the curling shaft 4 to rotate, the curling shaft 4 drives the threaded sleeve 6 to rotate together, when the positioning pin 16 is inserted into the positioning groove 701, then the bolt 18 is inserted into the pin hole, the motor rotates forward, the threaded sleeve 6 rotates forward, drives the moving sleeve 7 to move to the right, and the axial direction of the fixed sleeve 11 is stopped, only can rotate relative to the curling shaft 4, at this time, the guide shaft 20 on the moving sleeve 7 and the fixed sleeve 11 respectively slides in the corresponding waist-shaped groove 19, the roller strip 9 is lifted, so that the diameter of the cage is increased, then the bolt 18 is pulled out, the positioning pin 16 is ejected from the positioning groove 701 under the action of the compression spring 17, the curling shaft 4 drives the moving sleeve 7 to rotate, at the same time drives the cage to rotate, at this time, the rubber strip is guided to the cage through the guiding of the slitting roller 13, the roller strip 9 with the rubber grabbing spike 10 starts to curl on the surface of the cage, when reaching the corresponding rubber strip winding requirement, the rubber strip is cut off, then the positioning pin 16 is inserted into the positioning groove 701, the motor reverses, the threaded sleeve 6 reverses, drives the moving sleeve 7 to move to the left, the cage is contracted, the operator can unload the rubber roll from the side of the fixed sleeve 11, realizes the quick unloading of the rubber roll.

[0041] The embodiment of the present application sets the cage surrounded by the roller strip 9, the cage can expand and contract under the action of the moving sleeve 7, so as to facilitate the unloading of the rubber strip, and does not need to use the spool again, reduces the consumables and the cost.

[0042] Although the present application has been described in detail in the foregoing description, it is to be understood that modifications and improvements can be made to the present application without departing from the spirit and scope of the present application. Therefore, the modifications and improvements made on the basis of the present application without departing from the spirit and scope of the present application are all within the scope of the present application.

Claims

1. A rubber strip curling machine, comprising a frame, characterized in that: The cam is provided with a plurality of connecting ears, each of which is provided with a plurality of connecting ears, each of which is provided with a plurality of corresponding connecting ears. A roller strip is installed between each set of corresponding connecting ears on the movable sleeve and the fixed sleeve, and an inclined waist groove is symmetrically provided at both ends of the roller strip. A guide shaft is provided on the connecting ear, and the guide shaft is constrained and installed in the waist-shaped groove. A threaded sleeve is fixedly installed on the curling shaft, and the threaded sleeve is threadedly connected to the movable sleeve. A positioning device is provided between the positioning seat and the movable sleeve, and the positioning device includes a positioning pin installed on the positioning seat along the radial sliding of the movable sleeve, and a positioning groove extending along the axial direction of the movable sleeve and adapted to the positioning pin is provided on the outer surface of the movable sleeve, a compression spring is provided between the positioning pin and the positioning seat, and a pin is provided on the positioning seat for sliding radially along the positioning pin, and a pin hole adapted to the pin is provided on the positioning pin.

2. The rubber strip curling machine according to claim 1, characterized in that: At least one roller strip is provided with a plurality of rubber-grabbing thorns.

3. The rubber strip curling machine according to claim 1, characterized in that: A shaft sleeve is provided between the fixing sleeve and the crimping shaft.

4. The rubber strip curling machine according to any one of claims 1 to 3, characterized in that: A slitting roller is rotatably mounted on the frame. The slitting roller is arranged parallel to the curling shaft and is located on one side of the curling shaft. A plurality of rubber baffles arranged at intervals are provided on the slitting roller.

5. The rubber strip curling machine according to claim 4, characterized in that: The rubber baffle is sleeved on the slitting roller, a spacer is provided between two adjacent rubber baffles, and the rubber baffle located at the outermost edge is fixed to the slitting roller by a fastener.

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