Carton position limiting mechanism for carton conveyor

Abstract

This utility model relates to the field of cardboard box transportation technology and discloses a cardboard box limiting mechanism for a cardboard box transporter, comprising: a fixed plate, a horizontal support provided at the top center of the fixed plate, a U-shaped frame fixedly provided at the bottom of the horizontal support, a motor fixedly provided on the left side of the bottom horizontal plate of the U-shaped frame, a lead screw fixedly provided on the shaft of the motor, the left and right ends of the lead screw fixed on the bearing seats at the bottom of the U-shaped frame, sliders sleeved on both sides of the lead screw, a linear motor provided above each slider, a limit baffle fixedly provided on the telescopic rod of the linear motor, crossbars provided on the front and rear sides of the top of the horizontal support, multiple sets of rollers provided between the crossbars, clamping components provided on both sides of the horizontal support, and cardboard box pallets provided on the rollers; by means of the U-shaped frame components and clamping components, the cardboard box pallets and cardboard boxes are fixed, reducing the damage rate of cardboard boxes and improving the overall production flow efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box transportation technology, specifically a cardboard box limiting mechanism for a cardboard box transporter. Background Technology

[0002] In logistics transportation and warehousing, cardboard boxes are a commonly used packaging medium, and their stable transport directly affects the integrity of goods. Currently, most existing cardboard box transporters use plastic frames as the carrying components, achieving bulk transfer by placing cardboard boxes inside the plastic frames.

[0003] However, this traditional method has certain drawbacks:

[0004] On the one hand, the plastic frame is relatively hard and lacks internal cushioning and limiting structures. During the start-up, stop-up or turning of the transporter, the cardboard box is prone to collision and friction with the inner wall of the plastic frame. This is especially true for cardboard boxes made of corrugated paper and other materials, which can easily cause damage to the corners and deformation of the box, affecting the integrity of the packaging.

[0005] On the other hand, since the cartons inside the plastic frame lack fixed limits, the position and posture of the cartons are uncertain when they enter the next process, such as robotic arm clamping and handling, automated sorting, etc. This causes the clamping device to frequently adjust the positioning parameters, which not only increases the clamping difficulty but also prolongs the process time and seriously affects the overall turnover efficiency. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a carton limiting mechanism for a carton transporter.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A carton limiting mechanism for a carton transporter includes: a fixed plate, a transverse support at the top center of the fixed plate, a U-shaped frame fixed at the bottom of the transverse support, a motor fixed at the left side of the bottom horizontal plate of the U-shaped frame, a lead screw fixed on the shaft of the motor, the left and right ends of the lead screw fixed on bearing seats at the bottom of the U-shaped frame, sliders sleeved on both sides of the lead screw, a linear motor above each slider, a limit baffle fixed on the telescopic rod of the linear motor, crossbars on the front and rear sides of the top of the transverse support, multiple sets of rollers between the crossbars, clamping components on both sides of the transverse support, and carton pallets on the rollers.

[0009] The internal threads of the sliders on the left and right sides are opposite and are threaded with the lead screw. The clamping assembly is used to clamp and limit the carton pallet on the left and right sides. The linear motor is used to start the extension limit baffle to limit the front and rear sides of the carton pallet. Motor 1 is used to drive the lead screw to rotate and drive the sliders on the left and right sides to move inward, thereby driving the limit baffle of the linear motor to clamp the carton pallet. The carton pallet is used to support the carton, and the roller is used to assist in unloading the carton.

[0010] Preferably, the clamping assembly includes: a fixed base, which is fixedly mounted on the left and right sides of a fixed plate by screws; a motor 2 is fixedly mounted on the left side of the fixed base; bearing blocks are provided on both the left and right sides of the fixed base; a lead screw 2 is provided between the bearing blocks; the shaft of the motor 2 is fixedly connected to the end of the lead screw 2 away from the transverse support; guide rail plates are provided on both the front and rear sides of the fixed base; a triangular moving plate is provided above the guide rail plates; multiple sets of guide rail groove blocks are provided on the front and rear sides of the bottom plate of the triangular moving plate; the guide rail groove blocks cooperate with the guide rail plates; and a threaded block is provided in the center of the bottom plate of the triangular moving plate; the threaded block is threadedly engaged with the lead screw 2.

[0011] Motor 2 is used to start and drive screw 2 to rotate. Screw 2 engages with the threaded block to drive the triangular moving plate to move left and right. The guide rail groove block and the guide rail long plate are used to guide the triangular moving plate when it moves left and right on the fixed base.

[0012] Preferably, columns are fixedly installed on the front and rear sides of the triangular movable plate near the horizontal support. A horizontal frame plate is fixedly installed on the top of the columns near the horizontal support. Multiple sets of sliding rods are horizontally installed on the horizontal frame plate. Multiple sets of movable blocks are sleeved on the sliding rods. A buckle is provided at the bottom of the movable block. A vertical baffle is provided on the side of the movable block near the horizontal support.

[0013] The latch is used to lock the moving block to the horizontal frame plate, and the vertical baffle is used to limit the contact between the vertical baffle and the left and right sides of the carton pallet when the two motors on both sides drive the triangular moving plate to move towards the carton pallet.

[0014] Compared with the prior art, this utility model provides a carton limiting mechanism for a carton transporter, which has the following advantages:

[0015] The motor at the bottom of the U-shaped frame drives the lead screw to rotate, causing the sliders on both sides and the linear motor to move synchronously in opposite directions. Combined with the extension of the limit baffle driven by the linear motor, the front and rear sides of the carton pallet can be precisely clamped. At the same time, the clamping components on the left and right sides are driven by the lead screw to rotate, causing the triangular moving plate to move along the guide rail, so that the vertical baffle makes close contact with the left and right sides of the carton pallet, forming a lateral limit. Through the coordinated action of the front, rear, left, and right sides, the carton pallet and the carton supported on it are firmly fixed, effectively avoiding collisions and displacement of the cartons caused by shaking during transportation, and reducing the damage rate of the cartons.

[0016] Because the carton remains in a four-sided restraint state throughout transportation, its position and posture on the carton pallet remain highly stable. When the next process is carried out, the key clamping positions such as the edges and sides of the carton are clear and fixed, requiring no additional positioning adjustments. The clamping device can operate precisely according to preset parameters, reducing clamping difficulty, shortening process preparation time, and improving overall production flow efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the cardboard-free version of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the clamping component in this utility model;

[0020] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the transverse support in this utility model.

[0021] The components include: 1. Fixed plate; 2. Clamping assembly; 3. Horizontal support; 4. Carton; 201. Guide rail plate; 202. Triangular moving plate; 203. Motor II; 204. Column; 205. Horizontal frame plate; 206. Moving block; 207. Vertical baffle; 208. Lead screw II; 209. Fixed base; 301. Linear motor; 302. Slider; 303. U-shaped frame; 304. Motor I; 305. Limiting baffle; 306. Roller; 307. Lead screw I; 308. Crossbar; 401. Carton pallet. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-4 As shown, a carton limiting mechanism for a carton transporter according to this embodiment includes a fixed plate 1, which serves as the mounting base for the entire mechanism and provides stable support for each component. A transverse bracket 3 is provided at the top center of the fixed plate 1, and the transverse bracket 3 is fixedly connected to the fixed plate 1 by bolts to form the main frame of the mechanism.

[0024] A U-shaped frame 303 is fixedly installed at the bottom of the transverse support 3. The U-shaped frame 303 is connected to the transverse support 3 by welding to enhance structural stability. A motor 304 is fixedly installed on the left side of the bottom horizontal plate of the U-shaped frame 303. The motor 304 provides power for limiting movement in the forward and backward directions. A lead screw 307 is fixedly installed on the shaft of the motor 304. The left and right ends of the lead screw 307 are fixed to the bottom of the U-shaped frame 303 through bearing seats to ensure stable rotation of the lead screw 307.

[0025] Slider 302 is fitted on both sides of lead screw 307. The internal threads of the sliders 302 on the left and right sides are opposite and are threaded into lead screw 307, so that when motor 304 drives lead screw 307 to rotate, the sliders on both sides can move synchronously in opposite directions. A linear motor 301 is installed above each slider 302. A limit baffle 305 is fixed on the telescopic rod of the linear motor 301. The linear motor 301 can drive the limit baffle 305 to extend and retract, thereby limiting the front and rear sides of the carton pallet 401.

[0026] The transverse support 3 has crossbars 308 on both the front and rear sides of its top. The crossbars 308 are welded and fixed to the transverse support 3. Multiple sets of rollers 306 are installed between the crossbars 308 on both sides. The rollers 306 are connected to the crossbars 308 through bearings and can rotate flexibly to facilitate the loading and unloading of the carton pallet 401. The transverse support 3 has clamping components 2 on both the left and right sides. The carton pallet 401 is mounted on the rollers 306 and is used to support the carton 4.

[0027] The clamping assembly 2 includes a fixed base 209, which is fixed to the left and right sides of the fixed plate 1 by screws. A second motor 203 is fixedly installed on the left side of the fixed base 209, providing power for left and right direction limiting. Bearing blocks are provided on both the left and right sides of the fixed base 209, and a second lead screw 208 is provided between the bearing blocks. The rotating shaft of the second motor 203 is fixedly connected to the end of the second lead screw 208 away from the transverse support 3.

[0028] Guide rail plates 201 are provided on both the front and rear sides of the fixed base 209. The guide rail plates 201 are welded and fixed to the fixed base 209. A triangular movable plate 202 is provided above the guide rail plates 201. Multiple sets of guide rail groove blocks are provided on the front and rear sides of the bottom plate of the triangular movable plate 202. The guide rail groove blocks cooperate with the guide rail plates 201 to guide the movement of the triangular movable plate 202. A threaded block is provided in the center of the bottom plate of the triangular movable plate 202. The threaded block is threadedly engaged with the lead screw 208. When the motor 203 is started, it can drive the triangular movable plate 202 to move left and right.

[0029] The triangular movable plate 202 has columns 204 fixedly installed on both the front and rear sides near the horizontal support 3. The columns 204 are welded to the triangular movable plate 202. A horizontal frame plate 205 is fixedly installed on the top of the columns 204 near the horizontal support 3. Multiple sets of sliding rods are horizontally arranged on the horizontal frame plate 205. Multiple sets of movable blocks 206 are sleeved on the sliding rods. The bottom of the movable block 206 is provided with a buckle to lock the movable block 206 to the horizontal frame plate 205. A vertical baffle 207 is provided on the side of the movable block 206 near the horizontal support 3 to limit the left and right sides of the carton pallet 401.

[0030] In some examples, the inner sides of the limiting baffle 305 and the vertical baffle 207 are provided with a rubber buffer layer. The rubber buffer layer is fixed by adhesive and can play a buffering role when clamping the carton pallet 401 to avoid damage to the carton 4 due to hard contact.

[0031] In some examples, an infrared limit sensor is installed on the top of the horizontal support 3. The infrared limit sensor is electrically connected to the controller and can detect the position of the carton pallet 401 in real time to ensure the precise operation of the limit mechanism.

[0032] In some examples, the bottom of the fixed plate 1 is provided with a cam and a connecting block for connecting with the carton transporter.

[0033] The working principle of this utility model is as follows:

[0034] When using this carton limiting mechanism for a carton transporter, place the fixing plate 1 horizontally at the designated position on the transporter, and fix the transverse support 3 to the center of the top of the fixing plate 1 with bolts to ensure the stability of the main frame. Next, install the clamping assembly 2, and fix the fixing base 209 to the left and right sides of the fixing plate 1 with screws. Check whether the guide rail long plate 201 and the guide rail groove block of the triangular moving plate 202 fit smoothly. At the same time, confirm that the bearing seat at the bottom of the U-shaped frame 303 and the lead screw 307 are installed in place, ensuring that the slider 302 can slide flexibly along the lead screw 307. Then, place the carton pallet 401 on the roller 306 at the top of the transverse support 3, adjust the position of the moving block 206 in the clamping assembly 2 according to the size of the carton 4, and lock it on the slide bar of the transverse frame plate 205 with the buckle, so that the vertical baffle 207 is aligned with the left and right edges of the carton pallet 401.

[0035] When it is necessary to limit and fix the carton 4, start motor 304 and the linear motors 301 on both sides. Motor 304 drives lead screw 307 to rotate. Since the internal threads of the sliders 302 on the left and right sides are opposite, the sliders 302 will drive the linear motors 301 to move inward synchronously. At the same time, the telescopic rod of the linear motor 301 extends, pushing the limiting baffle 305 closer to the carton pallet 401 until the limiting baffle 305 is in close contact with the front and rear sides of the carton pallet 401, completing the front and rear direction limitation. During this process, motor 203 of the clamping components 2 on the left and right sides is started simultaneously. Motor 203 drives lead screw 208 to rotate. Through the cooperation of the threaded block and lead screw 208, the triangular moving plate 202 moves along the guide rail plate 201 towards the horizontal support 3. The horizontal frame plate 205 at the top of the column 204 moves accordingly, so that the vertical baffle 207 contacts the left and right sides of the carton pallet 401 and applies appropriate pressure to achieve the left and right direction limitation. With coordinated clamping from the front, back, left, and right sides, the cardboard pallet 401 and the cardboard box 4 on top are firmly fixed, preventing collisions or displacement due to shaking during transportation.

[0036] When transported to the designated location and proceeding to the next process, the carton 4 remains precisely and stably positioned on the carton pallet 401 because it is in a four-sided restraint state throughout the transportation process. The robotic arm and other gripping devices can directly clamp the carton 4 according to preset parameters, eliminating the need for additional position detection and adjustment. This significantly shortens process changeover time and improves overall operational efficiency.

[0037] To remove carton 4, first reverse the operation of motors 304 and 203 to disengage the limit baffle 305 and vertical baffle 207 from the carton pallet 401. Then, the extension rod of linear motor 301 retracts, causing the limit baffle 305 to reset. At this point, roller 306 can rotate flexibly with external force. Workers or mechanical devices can push the carton pallet 401 along roller 306 to easily transfer it to the designated position in the next process step, reducing resistance during loading and unloading.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carton limiting mechanism for a carton transporter, characterized in that, include: A fixed plate (1) is provided with a horizontal support (3) at the top center of the fixed plate (1). A U-shaped frame (303) is fixedly provided at the bottom of the horizontal support (3). A motor (304) is fixedly provided on the left side of the bottom horizontal plate of the U-shaped frame (303). A lead screw (307) is fixedly provided on the shaft of the motor (304). The left and right ends of the lead screw (307) are fixed on the bearing seats at the bottom of the U-shaped frame (303). The left and right sides of the lead screw (307) are... A slider (302) is provided, and a linear motor (301) is provided above the slider (302). A limit baffle (305) is fixedly provided on the telescopic rod of the linear motor (301). A crossbar (308) is provided on the front and rear sides of the top of the transverse support (3). Multiple sets of rollers (306) are provided between the two crossbars (308). A clamping assembly (2) is provided on the left and right sides of the transverse support (3). A carton pallet (401) is provided on the roller (306). The internal threads of the sliders (302) on the left and right sides are opposite and are threaded with the lead screw (307). The clamping assembly (2) is used to clamp and limit the carton pallet (401) on the left and right sides. The linear motor (301) is used to start the extension limit baffle (305) to limit the front and rear sides of the carton pallet (401). The motor (304) is used to drive the lead screw to rotate and drive the sliders (302) on the left and right sides to move inward, and drive the limit baffle (305) of the linear motor (301) to clamp the carton pallet (401). The carton pallet (401) is used to support the carton (4). The roller (306) is used to assist in unloading the carton.

2. The carton limiting mechanism for a carton transporter according to claim 1, characterized in that, The clamping assembly (2) includes: a fixed base (209), which is fixedly mounted on the left and right sides of the fixed plate (1) by screws. A motor (203) is fixedly mounted on the left side of the fixed base (209). Bearing blocks are provided on both the left and right sides of the fixed base (209). A lead screw (208) is provided between the bearing blocks. The shaft of the motor (203) is fixedly connected to the end of the lead screw (208) away from the transverse support (3). A guide rail plate (201) is provided on both the front and rear sides of the fixed base (209). A triangular moving plate (202) is provided above the guide rail plate (201). Multiple sets of guide rail groove blocks are provided on the front and rear sides of the bottom plate of the triangular moving plate (202). The guide rail groove blocks cooperate with the guide rail plate (201). A threaded block is provided in the center of the bottom plate of the triangular moving plate (202). The threaded block is threadedly engaged with the lead screw (208). Motor 2 (203) is used to start and drive screw 2 (208) to rotate. Screw 2 (208) and screw block are threaded together to drive triangular moving plate (202) to move left and right. Guide rail groove block and guide rail long plate (201) are used to guide when triangular moving plate (202) moves left and right on fixed base (209).

3. The carton limiting mechanism for a carton transporter according to claim 2, characterized in that, The triangular movable plate (202) has columns (204) fixedly installed on the front and back sides of the side close to the horizontal support (3). The top of the columns (204) on the side close to the horizontal support (3) is fixedly installed with a horizontal frame plate (205). Multiple sets of sliding rods are horizontally arranged on the horizontal frame plate (205). Multiple sets of movable blocks (206) are sleeved on the sliding rods. The bottom of the movable block (206) is provided with a buckle. The side of the movable block (206) close to the horizontal support (3) is provided with a vertical baffle (207). The latch is used to lock the moving block (206) to the horizontal frame plate (205), and the vertical baffle (207) is used to limit the contact between the vertical baffle (207) and the left and right sides of the carton pallet (401) when the two motors (203) on both sides drive the triangular moving plate (202) to move towards the carton pallet (401).

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