Electric ejector rod type automatic scissors device for PVC (polyvinyl chloride) rubber tube production line

Abstract

The utility model relates to the technical field of rubber tube production equipment, in particular to an electric ejector rod type automatic scissors device for a PVC (polyvinyl chloride) rubber tube production line, which comprises a support, an electric ejector rod, a tool apron, a tube inlet horn mouth and a guide wheel are arranged on the support, a cutter is mounted on the electric ejector rod, the tool apron is positioned below the electric ejector rod, and the guide wheel is positioned below the tube inlet horn mouth. The pipe inlet horn mouth is located at the front end of the tool apron, a pipe outlet aligned with the pipe inlet horn mouth is formed in the tool apron, and the guide wheel is located behind the pipe outlet. According to the utility model, the pipe inlet horn mouth is matched with the guide wheel to convey the rubber pipe, an additional clamping pipe conveying device is not needed, the damage to the rubber pipe is reduced, the blockage is avoided, and the problem of irregular notches is solved by arranging the cutter at the end part of the electric ejector rod and matching with the cutter seat capable of enabling the cutter to move accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber hose production equipment, in particular to an electric ejector type automatic scissor device for a PVC rubber hose production line. Background Art

[0002] For traditional PVC rubber hose production lines (including three-rubber two-wire five-layer hoses, two-rubber one-wire three-layer braided high-pressure hoses, single-layer rubber hoses, etc.), after the formed rubber hoses are cooled in a cooling water tank and before entering the hose winding machine, due to customer requirements for fixed-length products (ranging from 6 meters to 100 meters), the rubber hoses need to be cut according to the length and then enter the hose winding machine to be wound into the packaging shape required by the customer.

[0003] Due to the large differences in hardness among various products produced and the spiral rotation of the rubber hoses during output, the existing automatic cutting machines have been abandoned because they fail to solve problems such as irregular cut edges and easy pipe blockage at the scissors, resulting in abnormal shutdown of the production line, and cannot meet the diverse production requirements of PVC rubber hoses. Therefore, in traditional PVC rubber hose production lines, operators have always manually cut the hoses with ordinary scissors according to the fixed-length prompt signal of the main machine. Since manual operation is difficult to ensure accuracy, it is very difficult for the operators to accurately cut the rubber hoses to a fixed length. When producing products with a small fixed length (such as a fixed length less than 10 meters), for every two rubber hose production lines, one employee needs to be specially assigned to cut the hoses, which is very labor-consuming and the production cost is relatively high.

[0004] After retrieval, the Chinese utility model patent with the patent application number 202322912256.7 discloses an automatic conveying and cutting mechanism for rubber hoses, which relates to the technical field of automatic feeding mechanisms of rubber sleeve bundling machines, and includes a support vertical plate, a rubber hose conveying part, a pneumatic scissor part, and a swing arm feeding part; the rubber hose conveying part includes a main conveying part and a driven conveying part; the pneumatic scissor part includes a fixed blade, a movable blade, and a scissor cylinder; the swing arm feeding part includes a swing arm cylinder, a swing arm, and a rubber hose through hole; the utility model has a small volume, a compact structure, and a fast operation speed, can automatically convey rubber hose materials, and by using a conveying motor and a reducer, the length of the rubber hose can be controlled, and then it can be automatically cut and the cut rubber hose can be automatically conveyed, so that the fixed-length cutting and feeding of the rubber hose can be completed efficiently, and it can completely replace the previous manual low efficiency; furthermore, the feeding, fixed-length cutting, and feeding operations of the rubber hose can be completed efficiently; while ensuring the improvement of efficiency, the labor cost is reduced.

[0005] However, the above-mentioned existing automatic conveying and cutting mechanism needs to use a clamping and feeding device to clamp the rubber hose, which increases the damage to the rubber hose, is prone to pipe blockage during pipe feeding, and there is a problem of irregular cut edges when using a pneumatic scissor for cutting. Summary of the Utility Model

[0006] The technical problem to be solved by the present utility model is to provide an electric push rod type automatic scissor device for a PVC hose production line in view of the above-mentioned defects of the prior art. By arranging an inlet hose bell mouth and guide wheels to cooperate for conveying the hose, it is not necessary to adopt an additional clamping and feeding device, reducing damage to the hose and avoiding blockage. By installing a cutter at the end of the electric push rod and cooperating with a cutter seat that can make the cutter move precisely, the problem of irregular cut is solved.

[0007] In order to solve the above technical problems, the technical solution of the present utility model is as follows:

[0008] An electric push rod type automatic scissor device for a PVC hose production line, comprising a bracket, on which an electric push rod, a cutter seat, an inlet hose bell mouth and guide wheels are arranged. A cutter is installed on the electric push rod. The cutter seat is located below the electric push rod. The inlet hose bell mouth is located at the front end of the cutter seat. An outlet pipe opening aligned with the inlet hose bell mouth is provided on the cutter seat. The guide wheels are located behind the outlet pipe opening.

[0009] Preferably, a cutter groove adapted to the cutter is provided on the cutter seat, and the cutter is slidably arranged in the cutter groove.

[0010] Preferably, a cutter seat cover plate is installed at the rear end of the cutter seat.

[0011] Preferably, the bracket includes a connecting plate and several side plates. The connecting plate is installed above the side plates, and a sealing plate is installed on the back of the side plates.

[0012] Preferably, the inlet hose bell mouth includes a trapezoidal part and a rectangular part arranged in sequence from outside to inside. The trapezoidal part is trapezoidally arranged, and the rectangular part is rectangularly arranged.

[0013] Preferably, the guide wheels are rotatably installed on the bracket through a rotating shaft.

[0014] Adopting the above technical solution, an electric push rod type automatic scissor device for a PVC hose production line provided by the present utility model has the following beneficial effects: A cutter is installed on the electric push rod in the electric push rod type automatic scissor device for a PVC hose production line. The cutter seat is located below the electric push rod. The inlet hose bell mouth is located at the front end of the cutter seat. An outlet pipe opening aligned with the inlet hose bell mouth is provided on the cutter seat. The guide wheels are located behind the outlet pipe opening. By arranging the inlet hose bell mouth and the guide wheels to cooperate for conveying the hose, it is not necessary to adopt an additional clamping and feeding device, reducing damage to the hose caused by additional clamping and avoiding blockage, solving the problem of easy blockage of the inlet pipe; By installing a cutter at the end of the electric push rod, abandoning the traditional pneumatic scissors, and cooperating with a cutter seat that can make the cutter move precisely, the problem of irregular cut is solved, the cut is more regular, saving labor costs and having lower production costs. Description of the Drawings

[0015] Figure 1 is a front view structural schematic diagram of the present utility model;

[0016] Figure 2 is a side view structural schematic diagram of the present utility model;

[0017] In the figure, 1 - bracket, 2 - electric jack, 3 - tool holder, 4 - inlet pipe bell mouth, 5 - guide wheel, 6 - cutting knife, 7 - outlet pipe opening, 8 - cutting knife groove, 9 - tool holder cover plate, 10 - connecting plate, 11 - side plate, 12 - sealing plate, 13 - trapezoidal part, 14 - rectangular part, 15 - rotating shaft, 16 - rubber hose. Specific embodiments

[0018] The following further describes the specific embodiments of the present utility model with reference to the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the following described various embodiments of the present utility model can be combined with each other as long as they do not conflict with each other.

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0021] Such as Figure 1-2As shown in the figure, the electric ejector rod type automatic scissor device of this PVC hose production line includes a bracket 1, on which an electric ejector rod 2, a knife seat 3, a pipe inlet bell mouth 4 and a guide wheel 5 are arranged. A cutting knife 6 is installed on the electric ejector rod 2. The knife seat 3 is located below the electric ejector rod 2. The pipe inlet bell mouth 4 is located at the front end of the knife seat 3. An outlet pipe orifice 7 aligned with the pipe inlet bell mouth 4 is opened on the knife seat 3. The guide wheel 5 is located behind the outlet pipe orifice. It can be understood that...

[0022] Specifically, a cutting knife groove 8 adapted to the cutting knife 6 is opened on the knife seat 3, and the cutting knife 6 is slidably arranged in the cutting knife groove 8; a knife seat cover plate 9 is installed at the rear end of the knife seat 3; the bracket 1 includes a connecting plate 10 and several side plates 11. The connecting plate 10 is installed above the side plates 11, and a sealing plate 12 is installed on the back of the side plates 11; the pipe inlet bell mouth 4 includes a trapezoidal part 13 and a rectangular part 14 arranged in sequence from outside to inside. The trapezoidal part 13 is trapezoidally arranged, and the rectangular part 14 is rectangularly arranged; the guide wheel 5 is rotatably installed on the bracket 1 through a rotating shaft 15.

[0023] It can be understood that the design of the present utility model is reasonable and the structure is unique. Compared with the traditional automatic conveying and shearing mechanism, by abandoning the additional clamping and pipe feeding device, the damage to the hose caused by additional clamping is reduced. Only a pipe inlet bell mouth 4 is configured at the entrance of the automatic scissor device, and a guide wheel 5 is configured at the outlet, so as to solve the problem of easy pipe blockage with a simple non-powered structure; by abandoning the traditional pneumatic scissors, a fast electric ejector rod 2 is selected, and a cutting knife 6 is installed at its end, and a knife seat 3 that can make the cutting knife 6 move precisely is equipped, which well solves the problem of irregular cut, and the cut is more regular; the electric ejector rod 2 can be connected to a general host length counter, and the action of the electric ejector rod 2 can be directly controlled by adopting the host length signal transmitted by it. The movement speed and ejection force of the electric ejector rod 2 are adjustable. In this way, the movement speed and ejection force of the electric ejector rod 2 can be adjusted according to different process speeds and hose hardness. Three speed grades of "fast, medium, full" and three ejection force grades of "large, medium, small" are also set on controllers such as the host length counter and selected in different varieties and production processes; and it can save labor costs and the production cost is relatively low. In the actual application process, all 16 PVC production lines are equipped with this electric ejector rod type automatic scissor device, and the total transformation investment is 120,000 yuan (7,500 yuan per set), realizing the reduction of 8 operators (originally, 2 pipe cutting workers were allocated per shift, 4 shifts). The annual income brought by this is: 5000*8*12 = 480,000 yuan. Subtracting the equipment investment of 120,000 yuan, the actual income brought in the first year after all the transformations are completed is 360,000 yuan.

[0024] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. An electric ejector rod type automatic scissor device for a PVC hose production line, comprising a bracket, characterized in that: An electric ejector rod, a tool holder, an inlet pipe bell mouth and guide wheels are arranged on the bracket. A cutting tool is installed on the electric ejector rod. The tool holder is located below the electric ejector rod. The inlet pipe bell mouth is located at the front end of the tool holder. An outlet pipe orifice aligned with the inlet pipe bell mouth is formed in the tool holder. The guide wheels are located behind the outlet pipe orifice.

2. The electric push rod type automatic scissor device for the PVC hose production line according to claim 1, wherein: A cutting tool groove adapted to the cutting tool is formed in the tool holder. The cutting tool is slidably arranged in the cutting tool groove.

3. The electric push rod type automatic scissor device for the PVC hose production line according to claim 1, characterized in that: A tool holder cover plate is installed at the rear end of the tool holder.

4. The electric push rod type automatic scissor device of the PVC hose production line according to claim 1, characterized in that: The bracket includes a connecting plate and a plurality of side plates. The connecting plate is installed above the side plates. A sealing plate is installed on the back surface of the side plates.

5. The electric ejector rod type automatic scissor device for the PVC hose production line according to claim 1, wherein: The bell mouth includes a trapezoidal portion and a rectangular portion which are arranged in sequence from outside to inside. The trapezoidal portion is trapezoidally arranged. The rectangular portion is rectangularly arranged.

6. The electric push rod type automatic scissor device for a PVC hose production line according to claim 1, wherein: The guide wheels are rotatably installed on the bracket through a rotating shaft.

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