A rubber slitter

Abstract

The utility model provides a kind of rubber slitter, belong to slitter technical field.It solves the technical problem that current slitter is difficult to take into account the quality of rubber strip after cutting and feeding accuracy.This rubber slitter includes rack, weighing mechanism and feeding conveyor belt, the rack is provided with waste bin, the rack is equipped with material removal plate that can reciprocate between weighing mechanism and feeding conveyor belt, the feeding conveyor belt can move in positive and negative direction, interval is left between the feeding conveyor belt and the weighing mechanism and forms blanking pass with the waste bin below, the rack is also connected with the baffle that is horizontally arranged strip, the baffle is arranged along the width direction of the feeding conveyor belt, the baffle is located above the feeding conveyor belt, the baffle can be moved to the upper side of the feeding conveyor belt downward.This slitter makes the feeding form of rubber strip uniform and more accurate while ensuring the quality of rubber strip.

Description

Technical Field

[0001] This utility model belongs to the technical field of rubber strip cutting equipment, and relates to a rubber strip cutting machine. Background Technology

[0002] Rubber products are widely used in various aspects of industry and daily life. Before entering the injection molding machine, rubber products need to be cut into strips by a strip cutter before being fed into the injection molding machine. Currently, after the rubber strip cutting device cuts the rubber into strips, other equipment is needed to weigh and screen the rubber strips to ensure that the quality is up to standard, which affects the production efficiency.

[0003] Patent application number CN202120702351.2 discloses a rubber product weighing, screening and strip cutting machine, which includes a frame, a control device, a cutting mechanism and a weighing mechanism. The frame is equipped with a protective cover, and the control device is installed on the protective cover. A feeding roller is connected to the lower left side of the frame, and a guide roller is connected to the upper left side of the frame. A material pulling structure is provided on the right side of the guide roller, a strip cutting table is provided on the right side of the material pulling structure, a weighing mechanism is provided on the right side of the strip cutting table, a discharge mechanism is provided on the lower right side of the weighing mechanism, and a waste storage bin is provided on the lower left side.

[0004] The above-mentioned strip cutting machine still has some shortcomings: the rubber strips that have passed the weighing are thrown onto the discharge mechanism by the weighing mechanism. During this process, the rubber strips are easily folded and deformed, resulting in the rubber strips on the discharge mechanism being very messy, which is not conducive to accurate subsequent feeding. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in existing technologies by providing a rubber strip cutting machine. The technical problem this utility model aims to solve is to ensure the quality of the cut rubber strips while ensuring accurate feeding.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A rubber strip cutting machine includes a frame, a weighing mechanism, and a feeding conveyor belt. The frame contains a waste bin, and a transfer plate that can reciprocate between the weighing mechanism and the feeding conveyor belt is provided on the frame. The feeding conveyor belt is bidirectional, with a gap between it and the weighing mechanism forming a discharge port communicating with the waste bin below. A horizontally arranged strip-shaped baffle plate is also connected to the frame, arranged along the width of the feeding conveyor belt and located above it. The baffle plate can move downwards to the upper side of the feeding conveyor belt.

[0008] The weighing mechanism weighs the rubber strips placed on it to identify whether the cut rubber strips meet the standards. The waste bin is used to collect the unqualified rubber strips after weighing. The transfer plate can refer to existing components that can reciprocate and move up and down between two stations to transfer the rubber strips from the weighing device to the feeding conveyor belt. By setting an interval between the feeding conveyor belt and the weighing mechanism to form a discharge port connecting to the waste bin below, and setting a liftable strip baffle on the frame, the baffle is arranged along the width of the feeding conveyor belt and can be moved down to the upper side of the feeding conveyor belt. In this way, after the qualified rubber strips are sent to the feeding conveyor belt by the transfer plate, the feeding conveyor belt first moves the rubber strips and passes under the baffle, and then moves the baffle down. At the upper side of the feeding conveyor belt, the feeding conveyor belt is controlled to move in the reverse direction so that the rubber strip abuts against the baffle plate and adjusts itself to a straight state under the constraint of the baffle plate. During this process, the rubber strip will gradually approach the original rubber strip on the feeding conveyor belt until the distance between the two reaches the predetermined value. Then the feeding conveyor belt starts to move in the forward direction. Subsequently, the baffle plate is controlled to move up and reset so that the distance between the multiple rubber strips is the same, which is conducive to subsequent uniform and accurate grabbing and ensures higher feeding accuracy. The rubber strips that fail to meet the weight requirements are sent to the feeding conveyor belt by the transfer plate. The feeding conveyor belt can drive the rubber strip to move towards the discharge port so that it falls into the waste bin for collection. That is, while ensuring the quality of the rubber strips, the feeding form of the rubber strips is uniform and more accurate.

[0009] In the aforementioned rubber strip cutting machine, a horizontally mounted support plate is fixed to the frame. The feeding conveyor belt is fitted around the support plate, with the upper side of the support plate abutting against the opposite feeding conveyor belt. The baffle plate is located directly above the support plate. This allows the support plate to provide support from below for the feeding conveyor belt carrying the rubber strips, preventing excessive deformation of the conveyor belt and ensuring the uniform shape of the rubber strips. Simultaneously, it prevents deformation of the feeding conveyor belt after the baffle plate moves downwards, guaranteeing stable contact between the rubber strips and the baffle plate and its corrective action.

[0010] In the aforementioned rubber strip cutting machine, both sides of the support plate along the direction of movement of the feeding conveyor belt are bent downwards into rounded corners. This helps to prevent scratching damage between the feeding conveyor belt and the sides of the support plate when the conveyor belt moves in both directions.

[0011] In the aforementioned rubber strip cutting machine, the upper side of the feeding conveyor belt is not higher than the upper side of the weighing mechanism. This helps to prevent unqualified rubber strips from falling onto the upper side of the weighing mechanism when moving towards the discharge port, thus affecting subsequent weighing operations.

[0012] In the aforementioned rubber strip cutting machine, the top of the waste bin is open, and the edge of the waste bin has an outwardly inclined and folded guide plate. The guide plate is located directly below the discharge port and parallel to the baffle plate. In this way, even if the rubber strip falling from the discharge port experiences a certain positional deviation during its descent, it can be guided by the guide plate to smoothly fall into the waste bin for collection.

[0013] In the aforementioned rubber strip cutting machine, the outer wall of the frame has a material inlet communicating with the waste bin. This allows the operator to easily remove the rubber strips accumulated in the waste bin from the outside through the material inlet.

[0014] Compared with the prior art, the advantages of this utility model are as follows:

[0015] This rubber strip cutting machine can screen out rubber strips that fail to meet the weight requirements during the feeding process. For rubber strips that meet the weight requirements, the machine uses the reciprocating movement of the feeding conveyor belt and the cooperation of the baffle plate to sort the rubber strips, making them uniform in shape and facilitating accurate feeding in the future. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the rubber strip cutting machine.

[0017] Figure 2 This is a top view of the structure of this rubber strip cutting machine.

[0018] Figure 3 yes Figure 2 AA section view.

[0019] Figure 4 yes Figure 3 Enlarged view of part B in the image.

[0020] Figure 5 This is a three-dimensional structural diagram of the support plate and the feeding conveyor belt in this embodiment.

[0021] In the diagram, 1 is the frame; 11 is the waste bin; 12 is the material inlet; 2 is the weighing mechanism; 3 is the feeding conveyor belt; 4 is the transfer plate; 5 is the discharge port; 6 is the baffle plate; 7 is the support plate; and 8 is the guide plate. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] like Figure 1As shown, this rubber strip cutting machine includes a frame 1, a weighing mechanism 2, and a feeding conveyor belt 3. The existing weighing mechanism 2 includes a weighing platform for placing rubber strips and an existing lever transmission system located below the weighing platform for weighing the rubber strips on the platform. The frame 1 has a waste bin 11, and the outer wall of the frame 1 has a material inlet 12 communicating with the waste bin 11. The frame 1 is equipped with an existing transfer plate 4 that can be set between the weighing mechanism 2 and the feeding conveyor belt 3 and connected to the frame 1. The transfer plate 4 is connected to an existing screw drive on the frame 1 via a mounting plate. The structure is designed to allow horizontal movement between the weighing mechanism 2 and the feeding conveyor belt 3. A vertical cylinder is installed on the mounting plate to control the lifting and lowering of the material transfer plate 4. The feeding conveyor belt 3 can move in both directions. There is a gap between the feeding conveyor belt 3 and the weighing mechanism 2, forming a discharge port 5 that communicates with the waste bin 11 below. A horizontally arranged strip baffle plate 6 is also connected to the frame 1. The baffle plate 6 is arranged along the width direction of the feeding conveyor belt 3 and is located above the feeding conveyor belt 3. The baffle plate 6 can move downward to the upper side of the feeding conveyor belt 3.

[0024] like Figure 2-4 As shown, a horizontally mounted support plate 7 is fixed on the frame 1, and the upper side of the support plate 7 is abutting against the opposite feeding conveyor belt 3. The baffle plate 6 is located directly above the support plate 7. The upper side of the feeding conveyor belt 3 is not higher than the upper side of the weighing mechanism 2. The top of the waste bin 11 is open, and the edge of the waste bin 11 has an outwardly inclined and folded guide plate 8, which is located directly below the discharge port 5 and parallel to the baffle plate 6.

[0025] like Figure 5 As shown, the feeding conveyor belt 3 is fitted around the support plate 7, and both sides of the support plate 7 along the moving direction of the feeding conveyor belt 3 are bent downwards into rounded corners.

[0026] After the rubber material is cut into rubber strips, it is first weighed on the weighing mechanism 2. If the weighing is not up to standard, the transfer plate 4 is controlled to transfer the rubber strip to the feeding conveyor belt 3. The feeding conveyor belt 3 moves towards the rubber strip drop port 5 according to the signal fed back by the weighing mechanism 2, so that it falls into the waste bin 11. When the weighing is up to standard, the transfer plate 4 is controlled to transfer the rubber strip to the feeding conveyor belt 3. The feeding conveyor belt 3 moves the rubber strip and passes under the baffle plate 6. The baffle plate 6 is controlled to move down to the feeding conveyor belt 3. The feeding conveyor belt 3 is controlled to move the rubber strip in the opposite direction and towards the baffle plate 6, so that the rubber strip is in continuous contact with the baffle plate 6 to achieve the shaping effect. When the distance between the rubber strip and the previously fed rubber strip reaches the specified value (refer to the distance between the fed rubber strips), the feeding conveyor belt 3 stops moving. Then the feeding conveyor belt 3 is controlled to move forward away from the baffle plate 6. Then the baffle plate 6 is controlled to move up and reset, and the rubber strip is fed and conveyed again. The control program and system for moving the above-mentioned feeding conveyor belt 3, transfer plate 4 and baffle plate 6 can refer to existing technology.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A rubber strip cutting machine, comprising a frame (1), a weighing mechanism (2), and a feeding conveyor belt (3), wherein the frame (1) has a waste bin (11), and the frame (1) is provided with a transfer plate (4) capable of reciprocating between the weighing mechanism (2) and the feeding conveyor belt (3), characterized in that, The feeding conveyor belt (3) can move in both directions. There is a gap between the feeding conveyor belt (3) and the weighing mechanism (2) to form a discharge port (5) that communicates with the waste bin (11) below. A horizontally arranged strip baffle plate (6) is also connected to the frame (1). The baffle plate (6) is arranged along the width direction of the feeding conveyor belt (3). The baffle plate (6) is located above the feeding conveyor belt (3). The baffle plate (6) can move downward to the upper side of the feeding conveyor belt (3).

2. The rubber strip cutting machine according to claim 1, characterized in that, A horizontally arranged support plate (7) is fixed on the frame (1). The feeding conveyor belt (3) is sleeved around the support plate (7), and the upper side of the support plate (7) is close to the opposite feeding conveyor belt (3). The baffle plate (6) is located directly above the support plate (7).

3. The rubber strip cutting machine according to claim 2, characterized in that, The support plate (7) is bent downwards on both sides along the moving direction of the feeding conveyor belt (3) into a rounded shape.

4. The rubber strip cutting machine according to claim 1, 2, or 3, characterized in that, The upper side of the feeding conveyor belt (3) is not higher than the upper side of the weighing mechanism (2).

5. The rubber strip cutting machine according to claim 1, 2, or 3, characterized in that, The top of the waste bin (11) is open, and the edge of the waste bin (11) has an outwardly inclined and folded guide plate (8), which is located directly below the discharge port (5) and parallel to the baffle plate (6).

6. The rubber strip cutting machine according to claim 1, 2, or 3, characterized in that, The outer wall of the frame (1) has a material inlet (12) that communicates with the waste bin (11).

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