Screw conveyor for rubber balls

Abstract

This utility model discloses a screw conveying device for rubber balls. The key technical features include a frame with two parallel screws and a rotating rod rotatably connected to it. The gap between adjacent edges of the screws and the rotating rod is smaller than the radius of the rubber ball. A power assembly is provided between the screws and the rotating rod to drive them to rotate synchronously and in the same direction. The frame has a discharge port located between the screws and the rotating rod. The rotating rod has an annular discharge groove from which the rubber ball falls into the discharge port. The screw has a spiral groove for the spherical surface of the rubber ball to embed into. The rubber ball is stably conveyed to the discharge port under the rotational pushing of the spiral groove and the sides of the rotating rod. The rubber ball is pushed forward by the rotation of the screws and the rotating rod, and the rotation of the sides of the screws and the rotating rod impacts the accumulated rubber balls, causing them to fall onto the screws and the rotating rod and be conveyed along a single conveying trajectory.

Description

Technical Field

[0001] This utility model relates to a feeding mechanism, and more specifically, to a screw conveying device for rubber balls. Background Technology

[0002] As sealing balls, rubber balls need to be individually photographed and inspected after production. This requires transporting the rubber balls to the inspection station one by one. The rubber balls must be transported in a single strand. However, after being poured into the conveyor belt, the rubber balls tend to pile up together, making it difficult to form a single-strand transport track. Utility Model Content

[0003] The purpose of this invention is to provide a screw conveying device for rubber balls, which uses the rotation of the screw groove and the rotating rod to push the rubber balls forward, and utilizes the rotation of the screw and the rotating rod on both sides to impact the accumulated rubber balls, so that the rubber balls fall between the screw and the rotating rod and are conveyed along a single conveying trajectory.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A screw conveyor for rubber balls includes a frame with two parallel screws and a rotating rod rotatably connected to it. The gap between the adjacent edges of the screws and the rotating rod is smaller than the radius of the rubber ball. A power assembly is provided between the screws and the rotating rod to drive them to rotate synchronously and in the same direction. The frame has a discharge port located between the screws and the rotating rod. The rotating rod has an annular discharge groove, from which the rubber ball falls into the discharge port. The screw has a helical groove for the spherical surface of the rubber ball to be embedded. The rubber ball is stably conveyed to the discharge port by the rotational pushing of the helical groove and the side of the rotating rod.

[0005] Preferably, the power assembly includes pulleys mounted on the screw and the rotating rod, a belt linking the two pulleys, and a first motor mounted on the frame, which is connected to the screw via a coupling.

[0006] Preferably, the pitch of the spiral groove is greater than the diameter of the rubber ball.

[0007] Preferably, the frame is provided with two brushes, both of which are arranged along the length of the screw; one brush covers the top of the screw and is located on the side of the screw away from the gap to prevent the rubber ball from getting stuck on the other side of the screw; the other brush covers the top of the rotating rod and is located on the side of the rotating rod away from the gap to prevent the rubber ball from getting stuck on the other side of the rotating rod.

[0008] Preferably, the frame is fixed with a conveying pipe, which is connected to the discharge port. The conveying pipe has a detection hole and a detection probe is installed on the outside of the conveying pipe. The detection probe is electrically connected to a control board, which is electrically connected to a display board and a relay. The control board has a standard duration. When the time for which the rubber ball is detected is less than the standard duration, a counting detection is performed and the counting result is displayed on the display board. When the time for which the rubber ball is detected is greater than or equal to N times the standard duration, the relay is controlled to cut off the power supply, where N is a positive integer greater than 2.

[0009] In summary, this utility model has at least one of the following beneficial effects: The accumulated rubber balls are impacted by the rotation of the screw and the rotating rod on both sides. The rubber balls fall between the screw and the rotating rod and are arranged along a single-strand trajectory. The single-strand rubber balls move forward as the spiral groove pushes them forward. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the screw conveyor conveying a rubber ball to the detector in the embodiment; Figure 2 This is a schematic diagram of the screw conveyor in the embodiment; Figure 3 This is a schematic diagram showing the position of the discharge chute in the screw conveyor in the embodiment; Figure 4 This is a schematic diagram of the brush on the frame in the embodiment; Figure 5 This is a schematic diagram showing the connection relationship between the transmission tube and the detection probe in the embodiment; Figure 6 This is a schematic diagram illustrating the principle of the detection probe detecting the rubber ball in the embodiment.

[0011] In the picture: 101. Frame; 102. Screw; 103. Rotating rod; 104. Discharge port; 105. First motor; 106. Pulley; 107. Belt; 108. Discharge chute; 109. Spiral groove; 201. Detection hole; 202. Detection probe; 203. Control board; 204. Display board; 205. Relay; 3. Conveyor pipe; 4. Brush. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings.

[0013] Example 1: A screw conveyor for a rubber ball, referring to... Figures 1-3It includes a frame 101, which is a metal frame 101. A metal frame is fixed to the upper end of the frame 101. The metal frame is rectangular and a bearing seat is installed on the metal frame. The screw 102 and the rotating rod 103 are rotatably connected to the frame 101 through the bearing. The screw 102 and the rotating rod 103 are arranged in parallel. The gap between the adjacent edges of the screw 102 and the rotating rod 103 is smaller than the radius of the rubber ball. In this embodiment, the gap is about one-fifth of the radius of the rubber ball. Both the screw 102 and the rotating rod 103 have pulleys 106 fixed at their ends. The pulleys 106 of both are linked by a belt 107. The screw 102 and the rotating rod 103 achieve synchronous rotation in the same direction through the belt 107 and the pulleys 106.

[0014] A first motor 105 is installed on the frame 101. The first motor 105 is connected to the screw 102 through a coupling. Therefore, the first motor 105 drives the screw 102 and the rotating rod 103 to rotate synchronously.

[0015] The frame 101 is provided with a discharge port 104, which is located between the screw 102 and the rotating rod 103 and is located at the end of the conveyor. The rotating rod 103 is provided with an annular discharge groove 108, and the rubber ball falls from the discharge groove 108 into the discharge port 104. The screw 102 has a spiral groove 109, which is for the surface of the rubber ball to be embedded in. The area of ​​the surface of the ball embedded in the spiral groove 109 is less than half the area of ​​the rubber ball.

[0016] The rubber ball is stably conveyed to the downward feed port 104 by the rotational push of the spiral groove 109 and the side of the rotating rod 103.

[0017] The pitch of the spiral groove 109 is greater than the diameter of the rubber ball. In this embodiment, the spiral spacing of the spiral groove 109 is twice the diameter of the rubber ball.

[0018] The upper end of the conveying pipe 3 is welded to the frame 101, so that the upper opening of the conveying pipe 3 is connected to the discharge port 104. The rubber ball moves toward the discharge port 104 under the side transmission of the two rods, screw 102 and rotating rod 103; the rotating rod 103 has an annular discharge groove 108, the rubber ball falls down from the discharge groove 108 into the discharge port 104, and then is transmitted to the conveying pipe 3 through the discharge port 104, and then falls onto the detection plate from the conveying pipe 3. The detection plate has positioning holes, and the rubber ball falls onto the positioning holes.

[0019] Example 2, a screw conveyor for a rubber ball, differs from Example 1 in that, see below. Figure 4 The frame 101 is equipped with two brushes 4, and a pressure plate is fixed on the frame of the frame 101. The pressure plate is fixed to the frame 101 by screws, and the brushes 4 are clamped between the pressure plate and the frame 101 for fixation.

[0020] Both brushes 4 are arranged along the length of the screw 102; one brush 4 covers the top of the screw 102 and is located on the side of the screw 102 away from the gap to prevent the rubber ball from getting stuck on the other side of the screw 102; the other brush 4 covers the top of the rotating rod 103 and is located on the side of the rotating rod 103 away from the gap to prevent the rubber ball from getting stuck on the other side of the rotating rod 103.

[0021] One end of the brush 4 is fixed to the frame, and the other end covers the screw 102 and the rotating rod 103. First, the brush 4 cleans the surfaces of the screw 102 and the rotating rod 103. Second, the brush 4 acts as a barrier. When the rubber ball falls onto the frame 101, it may get stuck in the gap between the screw 102 and the frame 101 or between the rotating rod 103 and the frame 101, making it difficult to convey the rubber ball downwards. Furthermore, the roughness of the frame 101 is higher than that of the rotating rod 103 and the screw 102. If the rubber ball gets stuck on the frame 101 and friction occurs, the surface of the rubber ball will be worn. Therefore, the barrier function of the brush 4 reduces the occurrence of friction damage between the rubber ball and the frame 101.

[0022] Example 3, a screw conveyor for a rubber ball, differs from Example 1 or Example 2 in that, see below. Figures 5-6 The transmission tube 3 has a detection hole 201, and a detection probe 202 is provided on the outside of the transmission tube 3. The detection probe 202 is electrically connected to a control board 203, and the control board 203 is electrically connected to a display board 204 and a relay 205. The control board 203 has a standard duration. When the time for which the rubber ball is detected is less than the standard duration, a counting detection is performed and the counting result is displayed on the display board 204. When the time for which the rubber ball is detected is greater than or equal to N times the standard duration, the relay 205 is controlled to cut off the power supply, where N is a positive integer greater than 2.

[0023] The conveying pipe 3 is provided with a detection hole 201, which extends laterally through the conveying pipe 3. Ear plates are fixed on both sides of the transmission tube 3. The ear plates are locked with nuts to a detection probe 202. The detection probe 202 is an infrared detection head. The infrared detection heads on both sides are the transmitter and receiver, respectively, to maintain the coordinated state of transmitting and receiving detection light. When the rubber ball falls from the transmission tube 3, the rubber ball blocks the detection light. The detection probe 202 sends a signal to the control board 203 according to the duration of the light blocking. The control board 203 contains a control chip. The control board 203 is electrically connected to the detection probe 202. The control board 203 is electrically connected to the display board 204, which can input operation commands and display the corresponding working status. The control board 203 is also electrically connected to a normally closed relay 205, which controls the power supply of the entire device.

[0024] The control system for the 202 detection probe is as follows: The control panel 203 has a standard duration for light blocking, which can be 0.5 or 1 second, 2 seconds or 3 seconds, etc.

[0025] When the rubber ball falls from the conveyor tube 3, it is detected by a detection barrier. The time interval of this barrier is the detection duration. When the detection time is less than the standard time, the control board 203 receives a signal of a rubber ball falling and counts and numbers the falling rubber balls. The numbering method is to start counting from the power-on time using positive integers 1, 2, 3, 4 in sequence. The count information is displayed on the display board 204.

[0026] When the detection time is greater than or equal to the standard time, N times, a stop command is issued, where N is a positive integer greater than 2. In this embodiment, the standard time is 0.5 seconds and N is 6. Therefore, the comparison time for the stop command is 3 seconds. That is to say, when the detection probe 202 detects that the light has been continuously blocked for more than 3 seconds, it sends a shutdown signal to the control board 203, which controls the relay 205 to disconnect the power supply.

[0027] In this implementation, the detection probe 202 simultaneously serves to count and detect rubber balls and to control the power-off when rubber balls in the transmission tube 3 become blocked.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A screw conveyor for a rubber ball, characterized in that: Includes a frame (101), on which two parallel screws (102) and a rotating rod (103) are rotatably connected, and the gap between the adjacent edges of the screws (102) and the rotating rod (103) is less than the radius of the rubber ball; A power assembly is provided between the screw (102) and the rotating rod (103) to drive them to rotate synchronously and in the same direction; The frame (101) is provided with a feeding port (104), which is located between the screw (102) and the rotating rod (103). The rotating rod (103) is provided with an annular discharge groove (108), and the rubber ball falls from the discharge groove (108) into the feeding port (104). The screw (102) is provided with a spiral groove (109), which allows the spherical surface of the rubber ball to be embedded. The rubber ball is stably conveyed to the lower feed port (104) by the rotational push of the spiral groove (109) and the side of the rotating rod (103).

2. A screw conveyor for rubber balls as claimed in claim 1, characterized in that: The power assembly includes pulleys (106) mounted on the screw (102) and the rotating rod (103), a belt (107) that links the two pulleys (106), and a first motor (105) mounted on the frame (101). The first motor (105) is connected to the screw (102) via a coupling.

3. The screw conveyor for rubber balls of claim 1, wherein: The pitch of the spiral groove (109) is greater than the diameter of the rubber ball.

4. The screw conveyor for rubber balls of claim 1, wherein: The frame (101) is equipped with two brushes (4), both of which are arranged along the length of the screw (102); A brush (4) covers the top of the screw (102) and is located on the side of the screw (102) away from the gap to prevent the rubber ball from getting stuck on the other side of the screw (102); A brush (4) is placed over the rotating rod (103) and positioned on one side of the rotating rod (103) away from the gap to prevent the rubber ball from getting stuck on the other side of the rotating rod (103).

5. The screw conveyor for rubber balls of claim 1, wherein: The frame (101) is fixed with a conveying pipe (3), the conveying pipe (3) is connected to the discharge port (104), the conveying pipe (3) has a detection hole (201), and the outside of the conveying pipe (3) is equipped with a detection probe (202). The detection probe (202) is electrically connected to the control board (203), and the control board (203) is electrically connected to the display board (204) and the relay (205); The control panel (203) has a standard duration; When the time it takes for the rubber ball to be detected is less than the standard duration, a counting detection is performed and the counting result is displayed on the display panel (204); When the time for which the rubber ball is detected is greater than or equal to N times the standard duration, the control relay (205) cuts off the power supply, where N is a positive integer greater than 2.

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