High-speed conveying roller bed

Abstract

The utility model provides a high-speed conveying roller bed which comprises a conveying mechanism and a blocking and positioning mechanism, the conveying mechanism comprises a plurality of conveying rollers which are sequentially arranged in parallel, the plurality of conveying rollers are rotatably installed on a table top of the conveying roller bed, each conveying roller is provided with a synchronizing wheel, and the blocking and positioning mechanism is arranged on the table top of the conveying roller bed. A synchronous belt is arranged between the synchronous wheels on every two adjacent conveying rollers, the conveying mechanism further comprises a conveying motor arranged on the conveying roller bed, a driving wheel is arranged at the output end of the conveying motor, a synchronous belt is arranged between the driving wheel and one synchronous wheel, and the synchronous belt is arranged between the driving wheel and the other synchronous wheel. Transmission is achieved in the mode that a single driving motor drives all synchronous wheels, high synchronism and transmission efficiency are achieved, whole-line speed regulation can be achieved according to conveying requirements, the structure is compact, installation is convenient, and accurate conveying of conveyed materials can be achieved by being matched with a blocking and positioning mechanism.

Description

Technical Field

[0001] The utility model relates to the field of automobile body-in-white manufacturing, in particular to a high-speed conveying roller bed. Background Art

[0002] The roller bed conveyor system is an important transfer equipment in the automobile body-in-white manufacturing production line. Its transfer efficiency directly determines the operation rhythm of the body-in-white manufacturing process, such as body floor welding. The lifting and lowering mechanism of the existing roller bed conveyor system has a complex structure, low operating efficiency, and requires a high-power motor to execute the action, which takes up a large space.

[0003] Moreover, the existing roller bed adopts multi-stage drive conveying, and the overall conveying synchronization is poor, which easily causes abnormalities such as material accumulation and retention. When speed regulation is required, the transmission speed of each section needs to be adjusted separately, which is inconvenient. Utility Model Content

[0004] The technical problem to be solved by the present invention is that the existing roller bed conveying system has a complex lifting and adjusting structure and low operating efficiency, and the overall conveying synchronization is low and the speed regulation is inconvenient. The present invention provides a high-speed conveying roller bed to solve the above problems.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a pull rod type high-speed lifting roller bed, comprising a base, a lifting mechanism arranged on the base and a conveying roller bed installed on the lifting mechanism, the lifting mechanism comprising a front lifting mechanism and a rear lifting mechanism, the front lifting mechanism being arranged in the middle of the base, comprising a front rocker, the middle part of the front rocker being hingedly mounted on the base, the top of the front rocker being slidably mounted on the conveying roller bed; the rear lifting mechanism being arranged at the rear part of the base, comprising a rear rocker and a rear swing bar, the middle part of the rear rocker being hingedly mounted on the base It is hingedly installed with the base, the top of the rear rocker is hinged with the middle of the rear rocker, the bottom of the rear rocker is slidably installed on the base, and the top of the rear rocker is hingedly installed on the conveying roller bed; a driving device is installed at the front of the base, and the driving device includes a crank, a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the end of the crank, and the other end is hinged to the bottom of the front rocker; one end of the second connecting rod is hinged to the bottom of the front rocker, and the other end is hinged to the bottom of the rear rocker; the crank rotates under the drive of the driving motor.

[0006] Furthermore: a lower slide groove is provided at the rear of the base, a lower pulley is provided at the lower part of the rear rocker arm, and the lower pulley rolls in the lower slide groove; an upper slide groove is provided at the front part of the conveyor roller bed, an upper pulley is provided at the upper part of the front rocker arm, and the upper pulley rolls in the upper slide groove.

[0007] Furthermore: a balancing cylinder is also provided on the base, one end of the balancing cylinder is hingedly mounted on the base, and the other end is hingedly mounted on the bottom of the front rocker.

[0008] Furthermore: the conveying roller bed includes a conveying mechanism and a blocking and positioning mechanism, the conveying mechanism includes a plurality of conveying rollers arranged in parallel in sequence, and the plurality of conveying rollers are rotatably installed on the table of the conveying roller bed, each conveying roller is provided with a synchronous wheel, and a synchronous belt is provided between the synchronous wheels on two adjacent conveying rollers, the conveying mechanism also includes a conveying motor arranged on the conveying roller bed, a driving wheel is provided on the output end of the conveying motor, and a synchronous belt is provided between the driving wheel and one of the synchronous wheels.

[0009] Furthermore: the conveying mechanism also includes guide wheels, and the guide wheels are distributed on both sides of the conveying roller bed.

[0010] Furthermore: the blocking and positioning mechanism includes a blocker and a positioning pin, the positioning pin is installed on a positioning cylinder, and the positioning cylinder is vertically installed below the conveying roller bed table.

[0011] Furthermore: the blocker includes a blocking seat, a blocking bracket, a blocking cylinder, a blocking guide column and a blocking block, the blocking bracket is vertically slidably installed on the blocking seat, the blocking cylinder is vertically fixedly installed on the blocking seat, the blocking guide column is fixedly provided on the blocking bracket, and the blocking guide column is slidingly connected to the blocking seat; a blocking fixing sleeve is provided on the blocking bracket, and the blocking fixing sleeve is tightened on the blocking bracket by a nut, the blocking block is slidably installed in the blocking fixing sleeve along the horizontal direction, a reset spring is provided between the blocking fixing sleeve and the blocking block, and a limiting ring is installed at the end of the blocking block to prevent the reset spring from pushing the blocking block outward.

[0012] The beneficial effect of the utility model is that the high-speed conveying roller bed of the utility model adopts a single drive motor to drive all synchronous wheels for transmission, has high synchronization and transmission efficiency, can realize full-line speed regulation according to the conveying requirements, has a compact structure and is easy to install, and can realize accurate transmission of transported materials in conjunction with the blocking and positioning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural diagram of a pull-rod type high-speed lifting roller bed;

[0015] Figure 2 and Figure 3 It will Figure 1Schematic diagram of the structure with part of the conveyor roller bed components hidden

[0016] Figure 4 This is a simplified diagram of the driving structure of the lifting mechanism;

[0017] Figure 5 yes Figure 2 A partial enlarged view of the middle part;

[0018] Figure 6 yes Figure 2 A partial enlarged view of point B in the middle

[0019] Figure 7 It is a schematic diagram of the structure of the blocker;

[0020] Figure 8 It is a structural diagram of the installation of the blocking block.

[0021] In the figure, 1 is the base, 2 is the lifting mechanism, 3 is the conveying roller bed, 4 is the front lifting mechanism, 5 is the rear lifting mechanism, 6 is the front rocker, 7 is the rear rocker, 8 is the rear swing arm, 9 is the driving device, 10 is the crank, 11 is the first connecting rod, 12 is the second connecting rod, 13 is the lower slide, 14 is the lower pulley, 15 is the upper slide, 16 is the upper pulley, 17 is the balancing cylinder, 18 is the conveying mechanism, 19 is the blocking positioning mechanism, 20 is the conveying roller, 21 is the synchronous wheel, 22 is the synchronous belt, 23 is the conveying motor, 24 is the driving wheel, 25 is the guide wheel, 26 is the blocker, 27 is the positioning pin, 28 is the positioning cylinder, 29 is the blocking seat, 30 is the blocking bracket, 31 is the blocking cylinder, 32 is the blocking guide column, 33 is the blocking block, 34 is the blocking fixing sleeve, 35 is the reset spring, 36 is the limiting ring. DETAILED DESCRIPTION

[0022] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In addition, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0025] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention pertain.

[0026] like Figures 1 to 8 As shown, the utility model provides a pull-rod type high-speed lifting roller bed, comprising a base 1, a lifting mechanism 2 provided on the base 1, and a conveying roller bed 3 installed on the lifting mechanism 2, wherein the lifting mechanism 2 comprises a front lifting mechanism 4 and a rear lifting mechanism 5, the front lifting mechanism 4 being provided in the middle of the base 1 and comprising a front rocker 6, the middle portion of the front rocker 6 being hingedly mounted to the base 1, and the top of the front rocker 6 being slidably mounted on the conveying roller bed 3;

[0027] The rear lifting mechanism 5 is arranged at the rear part of the base 1, and includes a rear rocker 7 and a rear rocker 8. The middle part of the rear rocker 7 is hinged to the base 1, the top of the rear rocker 7 is hinged to the middle part of the rear rocker 8, the bottom of the rear rocker 8 is slidably mounted on the base 1, and the top of the rear rocker 8 is hinged to the conveyor roller bed 3;

[0028] A driving device 9 is installed at the front of the base 1, and the driving device 9 includes a crank 10, a first connecting rod 11 and a second connecting rod 12. One end of the first connecting rod 11 is hinged to the end of the crank 10, and the other end is hinged to the bottom of the front rocker 6; one end of the second connecting rod 12 is hinged to the bottom of the front rocker 6, and the other end is hinged to the bottom of the rear rocker 7; the crank 10 rotates under the drive of the driving motor.

[0029] The pull-rod high-speed lifting roller bed is generally used in the conveying link of the automobile body floor welding production line. The front rocker 6 and the rear rocker 7 are mainly connected by the second connecting rod 12, and the first connecting rod 11 drives the conveying roller bed 3 up and down. The specific operation method is that the drive motor drives the crank 10 to rotate. The rotation of the crank 10 pulls the first connecting rod 11 back and forth. The second connecting rod 12 integrates the front rocker 6 and the rear rocker 7 together. Under the front and back pulling of the first connecting rod 11, the front rocker 6 and the rear rocker 7 can swing along their respective mid-point hinge points. The front rocker 6 and the rear rocker 7 can amplify the pulling distance of the crank 10 and swing synchronously with the front rocker 6 and the rear rocker 7.

[0030] At the same time, because the front lifting mechanism 4 and the rear lifting mechanism 5 both have a sliding connection, specifically, the bottom of the rear rocker arm 8 is slidably mounted on the base 1, and the top of the front rocker arm 6 is slidably mounted on the conveyor roller bed 3, this sliding connection can prevent the conveyor roller bed 3 from being over-positioned when the front rocker arm 6 and the rear rocker arm 7 swing simultaneously. The conveyor roller bed 3 can adaptively adjust its position and state, thereby driving the conveyor roller bed 3 to be raised or lowered. Compared with the conventional method of the traditional synchronous lifting mechanism at both ends, this driving method has a faster lifting or lowering speed and a simpler and more convenient driving structure.

[0031] A lower slide groove 13 is provided at the rear of the base 1, and a lower pulley 14 is provided at the lower part of the rear rocker arm 8, and the lower pulley 14 rolls in the lower slide groove 13; an upper slide groove 15 is provided at the front of the conveying roller bed 3, and an upper pulley 16 is provided at the upper part of the front rocker arm 6, and the upper pulley 16 rolls in the upper slide groove 15.

[0032] By rolling the lower pulley 14 in the lower groove 13 and the upper pulley 16 in the upper groove 15, this adaptive position adjustment method can avoid over-positioning of the conveyor roller bed 3 when the crank 10 is pulled for adjustment. The conveyor roller bed 3 adaptively adjusts its position, and the adjustment process of the conveyor roller bed 3 is smooth and stable.

[0033] The base 1 is also provided with a balancing cylinder 17, one end of which is hingedly mounted on the base 1, and the other end is hingedly mounted on the bottom of the front rocker 6. The balancing cylinder 17 plays a role in assisting the pushing and pulling when the crank 10 rotates to adjust the conveyor roller bed 3. Because the pushing and pulling of the first connecting rod 11 are mainly driven by the crank 10 mechanism, the crank 10 exerts a nonlinear force on the pushing and pulling of the first connecting rod 11 at various points during the rotation process. In order to prevent the first connecting rod 11 from being able to smoothly push and pull the front rocker 6 and the rear rocker 7, the addition of the balancing cylinder 17 can buffer the pushing and pulling impact during the pushing and pulling process, ensuring the smooth lifting and lowering adjustment of the conveyor roller bed 3.

[0034] The conveying roller bed 3 includes a conveying mechanism 18 and a blocking and positioning mechanism 19. The conveying mechanism 18 includes a plurality of conveying rollers 20 arranged in parallel in sequence. The plurality of conveying rollers 20 are rotatably mounted on the table of the conveying roller bed 3. Each conveying roller 20 is provided with a synchronous wheel 21. A synchronous belt 22 is provided between the synchronous wheels 21 on two adjacent conveying rollers 20. The conveying mechanism 18 also includes a conveying motor 23 arranged on the conveying roller bed 3. A driving wheel 24 is provided on the output end of the conveying motor 23. A synchronous belt 22 is provided between the driving wheel 24 and one of the synchronous wheels 21.

[0035] When a material plate is conveyed on the conveyor roller bed 3, the conveying motor 23 drives the driving wheel 24 to rotate, which in turn drives the synchronous wheels 21 on each conveyor roller 20 to rotate under the drive of the synchronous belt 22. Since the synchronous wheels 21 on adjacent conveyor rollers 20 are connected to each other by the synchronous belt 22, the rotation of the driving wheel 24 drives the synchronous wheels 21 on each conveyor roller 20 to rotate in the same direction, that is, drives the conveyor rollers 20 to rotate in the same direction, thus realizing the transmission of the material plate. The conveying mechanism 18 and the blocking and positioning mechanism 19 can realize the operation of buffering or fixed-point positioning of the material plate.

[0036] The conveying mechanism 18 further includes guide wheels 25, which are distributed on both sides of the conveying roller bed 3. The guide wheels 25 help the material plate to move smoothly along the conveying direction on the conveying roller 20 to avoid abnormalities such as deviation in the moving direction of the material plate.

[0037] The blocking and positioning mechanism 19 includes a blocker 26 and a positioning pin 27. The positioning pin 27 is mounted on a positioning cylinder 28, which is vertically mounted below the surface of the conveyor roller bed 3. During normal conveying, the positioning pin 27 is retracted, and its overall height is lower than the height of the conveyor roller 20 surface, which does not affect the normal conveying of the material plate. When the material plate stops at a work station and needs to be positioned, the positioning cylinder 28 pushes the positioning pin 27 upward and inserts it into the corresponding position on the material plate, completing the positioning operation of the material plate.

[0038] The blocker 26 includes a blocking seat 29, a blocking bracket 30, a blocking cylinder 31, a blocking guide column 32 and a blocking block 33. The blocking bracket 30 is vertically slidably mounted on the blocking seat 29, the blocking cylinder 31 is vertically fixedly mounted on the blocking seat 29, the blocking guide column 32 is fixedly arranged on the blocking bracket 30, and the blocking guide column 32 is slidably connected to the blocking seat 29; a blocking fixing sleeve 34 is provided on the blocking bracket 30, and the blocking fixing sleeve 34 is tightly mounted on the blocking bracket 30 by a nut, and the blocking block 33 is slidably mounted in the blocking fixing sleeve 34 along the horizontal direction, a reset spring 35 is provided between the blocking fixing sleeve 34 and the blocking block 33, and a limiting ring 36 is installed at the end of the blocking block 33 to prevent the reset spring 35 from pushing the blocking block 33 outward.

[0039] This blocking block 33 adopts a reset spring 35 buffering design. When the material plate hits the blocking block 33, the blocking block 33 compresses the reset spring 35 to buffer the impact of the material plate, so that the material plate can be decelerated smoothly, avoiding the dislocation or even damage of the material plate or the material installed thereon due to vibration caused by hard contact; when the material plate moves away, the blocking block 33 can also be reset in time under the push of the reset spring 35, waiting for the next blocking and deceleration of the material plate.

[0040] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0041] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-speed conveyor roller bed, characterized in that: The conveying roller bed (3) includes a conveying mechanism (18) and a blocking positioning mechanism (19). The conveying mechanism (18) includes a plurality of conveying rollers (20) arranged in parallel in sequence. The plurality of conveying rollers (20) are rotatably mounted on the table of the conveying roller bed (3). Each conveying roller (20) is provided with a synchronous wheel (21). A synchronous belt (22) is provided between the synchronous wheels (21) on two adjacent conveying rollers (20). The conveying mechanism (18) also includes a conveying motor (23) provided on the conveying roller bed (3). A driving wheel (24) is provided at the output end of the conveying motor (23). A synchronous belt (22) is provided between the driving wheel (24) and one of the synchronous wheels (21).

2. A high-speed conveyor roller bed according to claim 1, characterized in that: The conveying mechanism (18) further comprises guide wheels (25), and the guide wheels (25) are distributed on both sides of the conveying roller bed (3).

3. A high-speed conveyor roller bed according to claim 2, characterized in that: The blocking and positioning mechanism (19) includes a blocker (26) and a positioning pin (27). The positioning pin (27) is mounted on a positioning cylinder (28). The positioning cylinder (28) is vertically mounted below the tabletop of the conveying roller bed (3).

4. A high-speed conveyor roller bed according to claim 3, characterized in that: The blocker (26) comprises a blocking seat (29), a blocking bracket (30), a blocking cylinder (31), a blocking guide column (32) and a blocking block (33), wherein the blocking bracket (30) is vertically slidably mounted on the blocking seat (29), the blocking cylinder (31) is vertically fixedly mounted on the blocking seat (29), the blocking guide column (32) is fixedly mounted on the blocking bracket (30), and the blocking guide column (32) is slidably connected to the blocking seat (29); a blocking fixing sleeve (34) is provided on the blocking bracket (30), the blocking fixing sleeve (34) is fastened to the blocking bracket (30) by a nut, the blocking block (33) is horizontally slidably mounted in the blocking fixing sleeve (34), a return spring (35) is provided between the blocking fixing sleeve (34) and the blocking block (33), and a limiting ring (36) is installed at the end of the blocking block (33) to prevent the return spring (35) from pushing the blocking block (33) outward.

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