A conveyor centering mechanism

Abstract

The utility model discloses a conveyor centering mechanism, first long clamping arm is fixed on first sliding block, second long clamping arm is fixed on second sliding block, first long clamping arm includes fixed base, clamping plate and pressure sensor, fixed base and first sliding block fixed connection, clamping plate and fixed base are connected through spring, pressure sensor contact projects on fixed base, pressure sensor and PLC controller communication connection, PLC controller control electric cylinder servo motor, first long clamping arm and second long clamping arm are symmetrical, and the left and right sides of base are equipped with guide rail, and first sliding block or second sliding block is driven along guide rail and moves by electric cylinder, and transmission guide rod includes first guide rod, second guide rod and third guide rod, the utility model discloses adopting the sliding centering structure of clamping arm cooperation transmission guide rod, and the two sides clamping arm clamps tightly by servo motor control, after centering is completed, the pressure sensor is triggered by compression spring, makes servo motor reverse, and clamping arm opens and resets, and the structure is simple, and the centering precision is high, can stable repeat work.

Description

Technical Field

[0001] This utility model relates to the field of centering mechanism technology, and in particular to a conveyor centering mechanism. Background Technology

[0002] In modern industrial production, conveyors are widely used in various industries for material transport. However, during the material transport process, materials often deviate from their designated location, making it impossible for them to be accurately transported to the designated position and affecting production efficiency.

[0003] Traditional centering mechanisms often employ multiple complex mechanical components working together, such as numerous gears, chains, cams, and other transmission structures, to achieve centering and adjustment of materials. This complex structure not only increases the manufacturing cost of the equipment but also makes the installation and commissioning process cumbersome, requiring professional technicians to spend a lot of time and effort to operate it.

[0004] Low centering accuracy is also a prominent problem. Some centering mechanisms use position detection devices with limited accuracy, which can only roughly detect the position of the material and make it difficult to achieve high-precision centering adjustment.

[0005] In addition, in actual industrial production, conveyors need to operate continuously for long periods of time and are subject to various external factors such as vibration, temperature changes, and material impact. Existing centering mechanisms have difficulty maintaining a stable working state when faced with these complex working conditions. Summary of the Invention

[0006] To address the problems of existing technologies, this utility model provides a conveyor centering mechanism, solving the issues of complex structure, low centering accuracy, and poor stability inherent in existing centering mechanisms.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] This utility model proposes a conveyor centering mechanism, including a first long clamping arm, a second long clamping arm, a first slider, a second slider, an electric cylinder, a transmission guide rod, and a base. The first long clamping arm is fixed to the first slider, and the second long clamping arm is fixed to the second slider. The first and second sliders are arranged parallel to each other with a front-to-back gap. The first long clamping arm includes a fixed base, a clamping plate, and a pressure sensor. The fixed base is fixedly connected to the first slider. The front end of the clamping plate and the rear end of the fixed base are movably connected by a spring. The contact of the pressure sensor protrudes from the rear end of the fixed base. The pressure sensor is communicatively connected to a PLC controller. The PLC controller controls the servo motor of the electric cylinder. The first and second long clamping arms have the same structure and are symmetrical front and back. The left and right sides of the base are provided with guide rails. The first or second slider is driven by the electric cylinder to move back and forth along the guide rails. The transmission guide rod includes a first guide rod, a second guide rod, and a third guide rod connected in sequence. The front end of the first guide rod is hinged to the first slider. The rear end of the first guide rod is hinged to the front end of the second guide rod. The center of the second guide rod is hinged to the base through a central pivot. The rear end of the second guide rod is hinged to the front end of the third guide rod. The rear end of the third guide rod is hinged to the second slider.

[0009] Furthermore, there are four guide rails, which are located at the front and rear ends of the left and right sides of the base, respectively.

[0010] Furthermore, a limiting block is provided at the end of the guide rail, which restricts the sliding range of the first slider and the second slider.

[0011] Furthermore, the base includes two main beams and a middle plate. The main beams are arranged parallel to each other with a left-right interval. The four guide rails are located at the front and rear ends of the two main beams, respectively. The middle plate spans between the two main beams in the left-right direction. The central rotating shaft is installed at the upper end of the middle plate.

[0012] Furthermore, the fixing base includes a base plate, a triangular column, and an upper crossbeam. The base plate and the upper crossbeam are horizontally arranged in the left-right direction, and the triangular column connects the base plate and the upper crossbeam vertically.

[0013] Furthermore, the left and right ends of the clamp are bent forward to form transition sections.

[0014] Compared with the prior art, the present invention has the following technical effects:

[0015] This utility model adopts a sliding centering structure with clamping arms and transmission guide rods. The clamping arms on both sides are controlled by a servo motor to clamp the object. After the object is clamped and centered, the spring will further press and trigger the pressure sensor, causing the servo motor to reverse and open and reset the clamping arms, and enter the next centering process. This utility model has a simple structure, high centering accuracy, and can work stably and repeatedly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application;

[0017] Figure 2 This is a schematic diagram of the structure of the execution unit in this application;

[0018] Figure 3 This is another structural diagram of the execution unit in this application;

[0019] Figure 4 This is a structural schematic diagram of the base of this application.

[0020] The parts in the attached diagram are labeled as follows:

[0021] 1. Base, 101. Main beam, 102. Intermediate plate, 103. Crossbeam

[0022] 2. Electric cylinder, 3. First long clamping arm,

[0023] 301 Fixed base, 3011 Base plate, 3012 Triangular column, 3013 Upper crossbeam,

[0024] 302 plywood, 3021 transition section,

[0025] 303 pressure sensor, 304 spring,

[0026] 4. Second long clamping arm; 5. First slider; 6. Second slider; 7. Guide rail.

[0027] 8. Transmission guide rod, 801. First guide rod, 802. Second guide rod, 803. Third guide rod.

[0028] 9. Center rotating shaft, 10. Limit block, 11. PLC controller. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This utility model discloses a conveyor centering mechanism, including a base 1, a centering execution unit, an electric cylinder 2, and a PLC controller 11.

[0031] like Figure 4As shown, the base 1 includes two main beams 101, a middle plate 102, and two crossbeams 103. The main beams 101 are arranged parallel to each other with left and right intervals. Four guide rails 7 are located at the front and rear ends of the two main beams 101 respectively. The middle plate 102 spans between the two main beams 101 in the left and right direction. The two crossbeams 103 span between the two main beams 101 in the left and right direction. The two crossbeams 103 are located on the front and rear sides of the middle plate 102 respectively. Two central rotating shafts 9 are installed on the left and right sides of the upper end of the middle plate 102.

[0032] The end of the guide rail 7 is provided with a limiting block 10, which limits the sliding range of the first slider 5 and the second slider 6.

[0033] The base 1 is equipped with adjusting bolts, which facilitates the adjustment of the horizontality, verticality and position of the base 1, providing precise guidance for the centering execution unit.

[0034] like Figure 1 As shown, the centering execution unit includes a first long clamping arm 3, a second long clamping arm 4, a first slider 5, a second slider 6, and a transmission guide rod 8. The first long clamping arm 3 is fixed on the first slider 5, and the second long clamping arm 4 is fixed on the second slider 6. The first slider 5 and the second slider 6 are arranged parallel to each other with a back-to-back interval. The first slider 5 or the second slider 6 is driven by an electric cylinder 2 to move back and forth along the guide rail 7.

[0035] Among them, such as Figure 2 As shown, the first long clamping arm 3 includes a fixed base 301, a clamping plate 302, and a pressure sensor 303. The fixed base 301 and the first slider 5 are fixedly connected. The front end of the clamping plate 302 and the rear end of the fixed base 301 are movably connected by a spring 304. (See Figure 303) Figure 3 The contacts of the pressure sensor 303 protrude from the rear end of the mounting base 301. The pressure sensor 303 is connected to the PLC controller 11 for communication. The PLC controller 11 controls the electric cylinder 2.

[0036] like Figure 3 As shown, the fixed base 301 specifically includes a base plate 3011, a triangular column 3012, and an upper crossbeam 3013. The base plate 3011 and the upper crossbeam 3013 are horizontally arranged in the left-right direction. The triangular column 3012 connects the base plate 3011 and the upper crossbeam 3013 vertically. The lower end of the triangular column 3012 is fixed to the upper end of the base plate 3011, and the lower end of the upper crossbeam 3013 is fixed to the upper end of the triangular column 3012.

[0037] The cross section of the upper beam 3013 is L-shaped extending forward. The upper beam 3013 is reinforced by triangular reinforcing ribs. The clamping plate 302 is inverted L-shaped extending forward. The upper beam 3013 and the clamping plate 302 together form a closed clamping arm structure.

[0038] like Figure 3As shown, the left and right ends of the clamping plate 302 are bent forward to form transition sections 3021. The transition sections 3021 cause the distance between the first long clamping arm 3 and the second long clamping arm 4 to gradually decrease from the left and right ends to the middle, which is used to guide the item into the clamping plate.

[0039] The first long clamping arm 3 and the second long clamping arm 4 have the same structure and are symmetrical front and back.

[0040] Two transmission guide rods 8 are provided between the first slider 5 and the second slider 6. The two transmission guide rods 8 are symmetrical from left to right. Each transmission guide rod 8 includes a first guide rod 801, a second guide rod 802 and a third guide rod 803 connected in sequence.

[0041] Among them, such as Figure 1 and Figure 2 As shown, the front end of the first guide rod 801 is hinged to the first slider 5, the rear end of the first guide rod 801 is hinged to one end of the second guide rod 802, the center of the second guide rod 802 is hinged to the base 1 through the central pivot 9, the rear end of the second guide rod 802 is hinged to the front end of the third guide rod 803, and the rear end of the third guide rod 803 is hinged to the second slider 6.

[0042] When in use, when an item enters the conveyor area, the servo motor of the electric cylinder 2 drives the cylinder rod, which pushes the first slider 5 and the second slider 6 to move towards each other, causing the two transmission guide rods to bend, so that the first long clamping arm 3 and the second long clamping arm 4 gradually move towards the item, centering the item to the center position of the conveyor.

[0043] After the clamping plate 302 comes into contact with the object, the clamping plate 302 gradually presses the spring 304 until the clamping plate 302 touches and triggers the contact of the pressure sensor 303. The pressure sensor 303 transmits the signal to the PLC controller 11. The PLC controller 11 sends a command to reverse the servo motor of the electric cylinder 2. The cylinder rod pushes the first slider 5 and the second slider 6 to move in the opposite direction. The first long clamping arm 3 and the second long clamping arm 4 open and reset, waiting for the next centering operation.

[0044] The electric cylinder 2 uses a servo motor to achieve precise position control, which can meet the centering requirements of micron-level or higher precision.

[0045] The PLC controller 11 receives data from various sensors, analyzes and processes it using preset algorithms and models, calculates the required action parameters for each actuator based on the centering task requirements and current status, and sends control commands to the servo motor of the electric cylinder 2. The servo motor drives the centering execution unit to perform the precise centering operation of the centering machine.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A conveyor centering mechanism, characterized in that, The system includes a first long clamping arm (3), a second long clamping arm (4), a first slider (5), a second slider (6), an electric cylinder (2), a transmission guide rod (8), and a base (1). The first long clamping arm (3) is fixed on the first slider (5), and the second long clamping arm (4) is fixed on the second slider (6). The first slider (5) and the second slider (6) are arranged parallel to each other with a front-to-back gap. The first long clamping arm (3) includes a fixed seat (301), a clamping plate (302), and a pressure sensor (303). The fixed seat (301) and the first slider (5) are fixedly connected. The front end of the clamping plate (302) and the rear end of the fixed seat (301) are movably connected by a spring (304). The contact of the pressure sensor (303) protrudes from the rear end of the fixed seat (301). The pressure sensor (303) is communicatively connected to a PLC controller (11). (11) A servo motor that controls the electric cylinder (2) has the same structure as the first long clamping arm (3) and the second long clamping arm (4) and is symmetrical in front and back. The left and right sides of the base (1) are provided with guide rails (7). The first slider (5) or the second slider (6) is driven by the electric cylinder (2) to move back and forth along the guide rail (7). The transmission guide rod (8) includes a first guide rod (801), a second guide rod (802) and a third guide rod (803) connected in sequence. The front end of the first guide rod (801) is hinged to the first slider (5). The rear end of the first guide rod (801) and the front end of the second guide rod (802) are hinged. The center of the second guide rod (802) and the base (1) are hinged through the central pivot (9). The rear end of the second guide rod (802) and the front end of the third guide rod (803) are hinged. The rear end of the third guide rod (803) and the second slider (6) are hinged.

2. The conveyor centering mechanism according to claim 1, characterized in that, There are two transmission guide rods (8), and the two transmission guide rods (8) have the same structure and are symmetrical from left to right.

3. The conveyor centering mechanism according to claim 1, characterized in that, The number of guide rails (7) is four, and the four guide rails (7) are located at the front end and rear end of the left and right sides of the base (1), respectively.

4. The conveyor centering mechanism according to claim 3, characterized in that, The guide rail (7) is provided with a limiting block (10) at its end, which limits the sliding range of the first slider (5) and the second slider (6).

5. The conveyor centering mechanism according to claim 3, characterized in that, The base (1) includes two main beams (101) and a middle plate (102). The main beams (101) are arranged parallel to each other with left and right intervals. The four guide rails (7) are located at the front and rear ends of the two main beams (101) respectively. The middle plate (102) spans between the two main beams (101) in the left and right direction. The central rotating shaft (9) is installed on the upper end of the middle plate (102).

6. The conveyor centering mechanism according to claim 1, characterized in that, The fixed base (301) includes a base plate (3011), a triangular column (3012) and an upper crossbeam (3013). The base plate (3011) and the upper crossbeam (3013) are horizontally arranged in the left and right directions, and the triangular column (3012) connects the base plate (3011) and the upper crossbeam (3013) in the vertical direction.

7. The conveyor centering mechanism according to claim 1, characterized in that, The left and right ends of the clamp (302) are bent forward to form transition sections (3021).

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