Guardrail width automatic adjusting conveying frame

Abstract

The utility model discloses a conveying frame capable of automatically adjusting the width of guardrails. The conveying frame comprises a conveying frame body, the guardrails on the two sides in the conveying direction, a plurality of guardrail adjusting mechanisms which are fixed to the two sides of the conveying frame body and clamp the guardrails on the corresponding sides respectively, two transmission shafts which are connected with the guardrail adjusting mechanisms on the corresponding sides in series respectively, and transmission shaft driving mechanisms fixed to the two sides of the conveying frame body. The guardrail adjusting mechanisms are evenly distributed along the two sides of the conveying frame, the transmission shaft driving mechanisms drive the transmission shafts to rotate, and the transmission shafts on the two sides drive the guardrail adjusting mechanisms on the two sides which are connected in series to drive the guardrails on the two sides to move in the opposite direction or the opposite direction. The device is simple in structure, attractive in appearance, high in adjusting precision and convenient to install, solves the problem of product switching of the packaging conveying line, improves the production efficiency, reduces the production cost, and is convenient to operate and maintain.

Description

Technical Field

[0001] The utility model relates to automated production line equipment, in particular to a conveying frame with automatic guardrail width adjustment. Background Art

[0002] When switching between packaging materials of different specifications on the same automated packaging conveyor line, the width of the conveyor guardrail needs to be adjusted according to the specifications of the packaging materials. Currently, the existing method for adjusting the width of the conveyor guardrail is generally manual adjustment, which requires loosening all the locking nuts on the fixed bracket, adjusting the width, and then re-tightening. There are many conveyor line brackets, cumbersome and time-consuming adjustments, and non-standard or inconsistent width adjustments, which brings great trouble to the automated production line and seriously affects production efficiency.

[0003] The existing automatic adjustment devices on the market can only be used on short-distance conveyor racks (2 to 3 meters). One motor (400W) can only drive 2 to 4 driven brackets. There is a method of either replacing a larger motor or adding more motors to achieve the automatic adjustment function. This leads to high product costs, many adjustment points, and cumbersome installation. The existing automatic adjustment devices cannot be synchronized when adjusting production lines with straight sections and parallel sections. Power matching devices need to be configured separately, which is too expensive and cumbersome to install and debug.

[0004] In view of the above problems, it is necessary to provide a conveyor frame with automatic guardrail width adjustment, which solves the problem of cumbersome width adjustment and complex structure of the guardrail when switching products on the packaging conveyor line. Utility Model Content

[0005] The utility model aims to provide a conveying frame with automatic adjustment of guardrail width, so as to overcome the above-mentioned defects in the prior art.

[0006] The technical solution to achieve the purpose of the utility model is: a conveyor frame with automatically adjustable guardrail width, comprising a conveyor frame, guardrails on both sides along the conveying direction, a plurality of guardrail adjustment mechanisms fixed on both sides of the conveyor frame and respectively clamping the guardrails on the corresponding sides, two transmission shafts respectively connected in series with the guardrail adjustment mechanisms on one side, and transmission shaft driving mechanisms fixed on both sides of the conveyor frame; the plurality of guardrail adjustment mechanisms are evenly distributed along both sides of the conveyor frame, the transmission shaft driving mechanism drives the transmission shaft to rotate, and the transmission shafts on both sides respectively drive the plurality of guardrail adjustment mechanisms on both sides connected in series to drive the guardrails on both sides to move toward or away from each other.

[0007] As a preferred embodiment, the guardrail adjustment mechanism includes a chuck for clamping the guardrail, a rack fixedly connected to the chuck and perpendicular to the guardrail in the horizontal direction, a gear box, and a driven gear arranged inside the gear box, the rack passes through the gear box and meshes with the driven gear, and the gear box is fixed to the side of the conveyor frame through a gear box bracket; the driven gear is sleeved and fixed on the transmission shaft.

[0008] As a preferred embodiment, a shaft sleeve is integrally provided at the center of the driven gear and extends axially to both sides. The transmission shaft is installed in the through hole of the shaft sleeve with an interference fit. A locking block is provided on the shaft sleeve for locking. A flange bearing is fixed inside the gear box, and the shaft sleeve is fixed in the inner hole of the flange bearing.

[0009] As a preferred embodiment, the transmission shaft driving mechanism includes a servo motor, a reducer, and a power box. The power box is fixed to the side of the conveying frame through a power box bracket. One end of the reducer is fixedly connected to the servo motor, and the other end is fixed to the power box. A transition gear and a driving gear and a power box driven gear respectively meshed with the transition gear are arranged inside the power box. The output shaft of the reducer is connected to the driving gear, and the driven gear of the power box is fixedly connected to the transmission shaft.

[0010] As a preferred embodiment, the center of the power box driven gear is axially extended to both sides and is integrally provided with a power box driven gear sleeve, the transmission shaft is installed in the through hole of the power box driven gear sleeve with interference fit, the power box driven gear sleeve is provided with a locking block for locking, a power box driven gear flange bearing is fixed inside the power box, and the power box driven gear sleeve is fixed in the inner hole of the power box driven gear flange bearing.

[0011] As a preferred embodiment, one end of the rack is fixed to the chuck, and the other end is provided with a protective cover.

[0012] As a preferred embodiment, the rack is marked with scales.

[0013] As a preferred embodiment, the conveying frame includes a straight section conveying frame and a track-dividing section conveying frame connected to the conveying track, and the transmission shaft is correspondingly divided into a straight section transmission shaft, a track-dividing section transmission shaft and a connecting section transmission shaft, and the two ends of the connecting section transmission shaft are respectively connected to one end of the straight section transmission shaft and the track-dividing section transmission shaft through universal joints.

[0014] As a preferred embodiment, the transmission shaft driving mechanism is located in the middle of the transmission shaft.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects:

[0016] (1) The utility model provides a guardrail width automatic adjustment conveyor frame, which can realize the automatic adjustment function of the guardrail width. Through the design of the transmission shaft, the same motor can realize the linkage adjustment of the guardrail over a longer distance.

[0017] (2) The transmission shaft drive mechanism of the utility model has a simple structure and is easy to install. By designing multiple gears in the power box, the speed ratio and torque are improved, and the adjustment length is increased. The movement speed of the corresponding gears and racks will be slow, thereby achieving precise adjustment.

[0018] (3) The guardrail adjustment mechanism of the utility model has a simple structure, and the design of the driven gear can better fix and link with the transmission shaft, and the installation is also more convenient.

[0019] (4) The utility model can enhance the fixation of the transmission shaft and the gear and improve the stability of the system through the design of the shaft sleeve locking block.

[0020] (5) The utility model provides a protective cover at one end of the rack, which has a protective effect on the operation and on-site personnel as well as a decorative effect.

[0021] (6) The utility model sets scales on the rack, which can easily grasp the adjustment width, make it more convenient to install and adjust according to product specifications, and facilitate use and inspection.

[0022] (7) The utility model realizes the function of synchronous adjustment of the conveying guardrails of the straight section and the parallel section by setting a universal joint connection between the transmission shafts.

[0023] (8) The utility model has a concentric positioning function through the structural design of the driven box and the power box, ensuring that the concentricity of a longer transmission shaft can be controlled within the design tolerance range. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein

[0025] Figure 1 A three-dimensional diagram of a conveyor rack with automatic guardrail width adjustment.

[0026] Figure 2 This is a partial enlarged view of a conveyor rack with automatic guardrail width adjustment.

[0027] Figure 3 It is a three-dimensional diagram of the transmission shaft drive mechanism.

[0028] Figure 4 This is the internal structure diagram of the transmission shaft drive mechanism.

[0029] Figure 5It is a three-dimensional diagram of the guardrail adjustment mechanism.

[0030] Figure 6 This is a diagram of the internal structure of the guardrail adjustment mechanism.

[0031] Figure 7 It is a three-dimensional diagram of the driven gear.

[0032] Figure 8 A three-dimensional diagram of the driven gear of the power box

[0033] The numbers in the accompanying drawings are: 1, conveyor frame, 11, straight section conveyor frame, 12, track section conveyor frame; 2, guardrail; 3, guardrail adjustment mechanism, 31, chuck, 32, rack, 33, gear box, 34, driven gear, 34-1, bushing, 35, gear box bracket, 36, flange bearing, 37, protective cover; 4, transmission shaft, 41, straight section transmission shaft, 42, track section transmission shaft, 43, connecting section transmission shaft; 5, transmission shaft driving mechanism, 51, servo motor, 52, reducer, 53, power box, 54, power box bracket, 55, transition gear, 56, driving gear, 57, power box driven gear, 57-1, power box driven gear bushing, 58, power box driven gear flange bearing; 6, locking block; 7, universal joint. DETAILED DESCRIPTION

[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the embodiments of the present utility model, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply 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 a limitation on the present utility model.

[0039] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the scope of protection of the utility model.

[0040] (Example)

[0041] See Figures 1 to 8 The conveyor frame 1 includes a straight section conveyor frame 11 and a track-joining section conveyor frame 12 which are parallel to the conveyor line and fixedly connected. The straight section conveyor frame 11 is connected to the conveying track of the track-joining section conveyor frame 12. Two round tube guardrails 2 are respectively arranged on both sides of the upper part of the conveyor frame along the conveying direction. Ten guardrail adjustment mechanisms 3 are evenly and fixedly arranged on both sides of the straight section conveyor frame 11 and the track-joining section conveyor frame 12. Straight section transmission shafts 41 and track-joining section transmission shafts 42 are arranged on both sides of the straight section conveyor frame 11 and the track-joining section conveyor frame 12. A connecting section transmission shaft 43 is also arranged between the straight section transmission shaft 41 and the track-joining section transmission shaft 42. The two ends of the connecting section transmission shaft 43 are respectively connected to one end of the straight section transmission shaft 41 and the track-joining section transmission shaft 42 through a universal joint 7. The straight section transmission shaft 41 and the merging section transmission shaft 42 are respectively connected in series to the guardrail adjustment mechanism 3 on both sides of the straight section conveyor frame 11 and the merging section conveyor frame 12. A transmission shaft driving mechanism 5 is also fixed on both sides of the conveyor frame, and the transmission shaft driving mechanism 5 drives the transmission shaft 4 to rotate reciprocatingly.

[0042] The guardrail adjustment mechanism 3 includes a double chuck 31 that can clamp two round tube guardrails 2, a rack 32 that is fixedly connected to the double chuck 31 and is perpendicular to the guardrail 2 in the horizontal direction, a gear box 33, and a driven gear 34 arranged inside the gear box 33. The rack 32 passes through the gear box 33 and meshes with the driven gear 34. The gear box 33 is fixed to the side of the conveyor frame 1 through a gear box bracket 35. A shaft sleeve 34-1 is provided at the center of the driven gear 34 along the axial direction to both sides. The shaft sleeve 34-1 and the driven gear 34 are integrally formed. The transmission shaft 4 passes through the shaft sleeve 34-1 and is interference-fitted with the shaft sleeve 34-1. A flange bearing 36 is fixed inside the gear box 33. The shaft sleeve 34-1 is connected to the flange bearing 36. A locking block 6 is provided on the shaft sleeves on both sides of the driven gear 34 to lock the transmission shaft.

[0043] The transmission shaft driving mechanism 5 includes a servo motor 51, a reducer 52, and a power box 53. The power box 53 is fixed to the side of the conveyor frame 1 through a power box bracket 54. One end of the reducer 52 is fixedly connected to the servo motor 51, and the other end is fixed to the power box 53. A transition gear 55 and a driving gear 56 and a power box driven gear 57 respectively meshing with the transition gear 55 are arranged inside the power box 53. The output shaft of the reducer 52 is connected to the driving gear 56, and the power box driven gear 57 is fixedly connected to the transmission shaft 4. The center of the power box driven gear 57 extends axially to both sides and is integrally provided with a power box driven gear shaft sleeve 57-1. The transmission shaft 4 is installed in the through hole of the shaft sleeve 57-1 with an interference fit. The power box driven gear shaft sleeve 57-1 is provided with a locking block 6 for locking. A power box driven gear flange bearing 58 is fixed inside the power box 53, and the shaft sleeve is fixed in the inner hole of the power box driven gear flange bearing 58.

[0044] Furthermore, the rack 32 is marked with scales, one end of the rack 32 is fixed to the double clamp 31, and the other end is provided with a protective cover 37.

[0045] Furthermore, the two transmission shaft driving mechanisms 5 are both located between the fifth guardrail adjusting mechanism and the sixth guardrail adjusting mechanism on the corresponding side.

[0046] The transmission shaft drive mechanism in this embodiment has a simple structure and is easy to install. It solves the problems existing in the product switching of the previous packaging conveyor line, greatly improves the production efficiency, greatly reduces the production cost, and plays a key role in product switching on the automated production line. Through the design and application of servo motors, reducers, combined gears, flange bearings, universal joints, locking blocks and other parts, the CNC automatic adjustment function of the conveying width is realized. The purpose of long-distance transmission is achieved by adjusting the speed ratio of the reducer and the master and slave gears.

[0047] In addition, this embodiment realizes the function of synchronous adjustment of the conveying guardrails of the straight section and the merging section, and the adjustment error of the conveying guardrail width is less than 1mm.

[0048] In addition, this embodiment adopts a visual design for adjusting the width. The power box device and the driven box device have novel appearance, simple structure, easy installation, quick debugging, and functions that fully meet production needs.

[0049] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveyor frame with automatic guardrail width adjustment, characterized in that: The invention comprises a conveying frame (1), guardrails (2) on both sides along the conveying direction, a plurality of guardrail adjustment mechanisms (3) fixed on both sides of the conveying frame (1) and respectively clamping the guardrails on the corresponding sides, two transmission shafts (4) respectively connected in series with the guardrail adjustment mechanisms (3) on one side, and a transmission shaft driving mechanism (5) fixed on both sides of the conveying frame; the plurality of guardrail adjustment mechanisms (3) are evenly distributed along both sides of the conveying frame (1), the transmission shaft driving mechanism (5) drives the transmission shaft (4) to rotate, and the transmission shafts (4) on both sides respectively drive the plurality of guardrail adjustment mechanisms (3) on both sides connected in series to drive the guardrails (2) on both sides to move towards or away from each other.

2. The guardrail width automatic adjustment conveyor according to claim 1, characterized in that: The guardrail adjustment mechanism (3) comprises a clamp (31) for clamping the guardrail (2), a rack (32) fixedly connected to the clamp (31) and perpendicular to the guardrail (2), a gear box (33), and a driven gear (34) arranged inside the gear box (33); the rack (32) passes through the gear box (33) and meshes with the driven gear (34); the gear box (33) is fixed to the side of the conveying frame (1) through a gear box bracket (35); and the driven gear (34) is sleeved and fixed on the transmission shaft (4).

3. The guardrail width automatic adjustment conveyor according to claim 2, characterized in that: The driven gear (34) is provided with a shaft sleeve (34-1) extending axially to both sides at its center, the transmission shaft (4) is installed in a through hole of the shaft sleeve (34-1) with an interference fit, a locking block (6) is provided on the shaft sleeve for locking, a flange bearing (36) is fixed inside the gear box (33), and the shaft sleeve (34-1) is fixed in the inner hole of the flange bearing (36).

4. The guardrail width automatic adjustment conveyor according to claim 1, characterized in that: The transmission shaft driving mechanism (5) comprises a servo motor (51), a speed reducer (52), and a power box (53); the power box (53) is fixed to the side of the conveying frame (1) through a power box bracket (54); one end of the speed reducer (52) is fixedly connected to the servo motor (51), and the other end is fixed to the power box (53); a transition gear (55) and a driving gear (56) and a power box driven gear (57) respectively meshing with the transition gear (55) are arranged inside the power box (53); the output shaft of the speed reducer (52) is connected to the driving gear (56), and the power box driven gear (57) is fixedly connected to the transmission shaft (4).

5. The guardrail width automatic adjustment conveyor frame according to claim 4, characterized in that: The center of the power box driven gear (57) is axially extended to both sides and is integrally provided with a power box driven gear shaft sleeve (57-1); the transmission shaft (4) is installed in the through hole of the power box driven gear shaft sleeve (57-1) with interference fit; the power box driven gear shaft sleeve (57-1) is provided with a locking block (6) for locking; a power box driven gear flange bearing (58) is fixed inside the power box (53); the power box driven gear shaft sleeve (57-1) is fixed in the inner hole of the power box driven gear flange bearing (58).

6. The guardrail width automatic adjustment conveyor according to claim 2, characterized in that: One end of the rack (32) is fixed to the clamp (31), and the other end is provided with a protective sleeve (37).

7. The guardrail width automatic adjustment conveyor according to claim 2, characterized in that: The rack (32) is marked with scale.

8. The guardrail width automatic adjustment conveyor frame according to claim 2, characterized in that: The conveyor frame (1) comprises a straight section conveyor frame (11) and a track-joining section conveyor frame (12) connected to a conveyor track; the transmission shaft (4) is correspondingly divided into a straight section transmission shaft (41), a track-joining section transmission shaft (42) and a connecting section transmission shaft (43); two ends of the connecting section transmission shaft (43) are respectively connected to one end of the straight section transmission shaft (41) and the track-joining section transmission shaft (42) through a universal joint (7).

9. The guardrail width automatic adjustment conveyor according to claim 3, characterized in that: The transmission shaft driving mechanism (5) is located in the middle of the transmission shaft (4).

Images