Automatic feeding device for rubber injection molding machine

Abstract

The utility model discloses an automatic feeding device for a rubber injection molding machine. The automatic feeding device is characterized by comprising a connecting bracket, a transverse feeding assembly, a vertical feeding assembly, a feeding clamping jaw and a feeding guide device, and the transverse feeding assembly is fixedly connected with one side of a mounting platform at the top of the injection molding machine through the connecting bracket. The vertical linear module is used for controlling the clamping jaw mounting vertical rod to stretch out and draw back, meanwhile, the transverse linear module is used for controlling the vertical feeding assembly to drive the whole feeding clamping jaw to be close to or far away from a feeding port of the rubber injection molding machine in the linear direction, and therefore feeding operation of strip-shaped rubber materials is completed, remote control operation is achieved, and production efficiency is improved. When short materials and tailings are fed or raw materials of different specifications are replaced, only the clamping jaw displacement needs to be controlled, operators do not need to move up and down repeatedly, the labor intensity of the operators is small, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber injection molding machines, in particular to an automatic feeding device for rubber injection molding machines. Background Art

[0002] At present, rubber injection molding equipment with large injection volume is large in size, and the feeding port is generally located in the top platform area of ​​the equipment. The height of this area is relatively high, generally more than 2 meters. It is necessary to use the stair handrail to enter the platform before manually feeding the long strip of rubber raw materials into the feeding port. After starting the injection molding machine, the material receiving mechanism will operate to continuously pull the rubber raw materials entering the feeding port into the injection molding machine before production can begin.

[0003] When feeding in longer strips of rubber raw materials, there will be many bends in the rubber raw material feeding path, resulting in greater resistance to the receiving mechanism when pulling the rubber raw materials into the injection molding machine. The feeding process takes a long time, and when feeding short materials, tail materials, or changing raw materials of different specifications, it is necessary to go back and forth many times. The defects are particularly prominent, the labor intensity of the operators is high, and the production efficiency is low. Summary of the invention

[0004] The utility model provides an automatic feeding device for a rubber injection molding machine, which utilizes a mechanical device structure to feed materials into the injection molding machine, has low labor intensity for operators and high production efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic feeding device for a rubber injection molding machine, characterized in that it comprises a connecting bracket, a lateral feeding assembly, a vertical feeding assembly, a feeding clamp and a feeding guide device; the lateral feeding assembly is fixedly connected to one side of a mounting platform on the top of the injection molding machine through the connecting bracket;

[0007] The lateral feeding assembly includes a lateral displacement slide and a lateral linear module. The lateral displacement slide is arranged on the lateral linear module. The lateral displacement slide is controlled by a servo motor in the lateral linear module to move back and forth on the lateral linear module, so that the lateral displacement slide is close to or away from the inlet of the injection molding machine along a straight path.

[0008] The vertical feeding assembly includes a vertical linear module, a clamp mounting vertical rod and a clamp mounting cross rod. The vertical linear module is integrally fixed to the lateral displacement slide of the lateral feeding assembly. The vertical linear module is provided with a clamp mounting vertical rod. The vertical linear module is used to control the extension and retraction of the clamp mounting vertical rod in the vertical direction. The lower end of the clamp mounting vertical rod is fixedly connected to one end of the clamp mounting cross rod. The other end of the clamp mounting cross rod faces the feed port of the injection molding machine and is provided with the feeding clamp.

[0009] A further solution is: in order to improve the working efficiency of the clamping jaws, the clamping gap of the clamping part needs to be adjusted for strip rubber materials of different thicknesses. The feeding clamping jaws include a clamping jaw seat, a clamping block, a clamping roller, a telescopic screw, a compression spring and a telescopic cylinder. The front end of the clamping jaw seat is provided with a notch, and the rear end is fixedly connected to the clamping jaw mounting cross bar. Two convex columns are provided on the upper surface of one side of the notch of the clamping jaw seat, and the side surfaces of the convex columns are respectively provided with transverse screw holes. A clamping block is provided in the notch of the clamping jaw seat. The clamping block is a long column with an inverted L-shaped cross section, with a handle at the upper end and a clamping part at the lower end. Three clamping rollers that rotate unidirectionally in the counterclockwise direction are provided on the lower end surface of the clamping block. The lower end surface on the other side of the notch of the claw seat and the relative position of the clamping roller on the lower end surface of the clamping block are also provided with three corresponding clamping rollers that rotate unidirectionally in the clockwise direction, which are used to clamp the strip rubber material and prevent the rubber material from retreating due to its own gravity. The adjusting screw is a T-shaped adjusting screw, one end of the adjusting screw passes through the screw hole on the convex column and is fixed with an adjusting nut, and the other end passes through the clamping spring and is pressed on one side of the upper end handle of the clamping block. A telescopic cylinder is provided on the other side of the upper end handle of the clamping block, and the clamping block is clamped by applying force on both sides of the clamping block handle through the telescopic cylinder and the adjusting screw, and then the clamping force and gap of the clamping roller are controlled by controlling the extension and contraction of the telescopic cylinder and the tightness of the clamping spring.

[0010] A further solution is: in order to avoid bending of the strip rubber at the feed end when feeding long materials, which leads to increased resistance to conveying the rubber on the rubber displacement path, a feeding guide device is also provided on the feed port of the injection molding machine, and the feeding guide device includes a connecting seat fixed to the feed port of the injection molding machine, a roller assembly, a roller mounting column and a guide roller, the connecting seat is in the shape of a rectangular plate, and a through hole consistent with the shape and size of the feed port is provided on the connecting seat, and the through hole on the connecting seat is aligned with the feed port, one end of the roller mounting column is vertically and detachably fixed to the flat plate on the lower side of the through hole of the connecting seat, a plurality of roller assemblies are arranged on the roller mounting column along an axial straight line, and a roller track aligned with the feed port is formed on the upper side of the roller mounting column, and a guide roller is provided at the end on the other side of the roller mounting column, which is used for guiding the subsequent strip rubber after the strip rubber enters the feed port, so as to reduce the bending resistance of the strip rubber during the material collection process.

[0011] A further solution is: it also includes a PLC control system for controlling automatic feeding, automatic clamping, action rhythm, detecting the position and length of the material, and ensuring that the feeding mechanism can accurately deliver the material to the designated position.

[0012] The working principle of the utility model is as follows: the operator controls the vertical rod for mounting the clamps on the vertical linear module to extend and descend. After the feeding clamps are lowered to a low position, the operator places the head of the strip rubber material between the clamping rollers of the clamping block and the clamping roller seat, and then controls the clamping gap between the clamping rollers by controlling the extension and contraction amount of the telescopic cylinder to clamp the strip rubber material of different thicknesses. After the head of the strip rubber material on the feeding clamp is clamped, the feeding clamp is lifted to be aligned with the feed inlet by controlling the vertical rod for mounting the clamps on the vertical linear module to contract, and then the horizontal linear module is controlled to move the vertical feeding assembly as a whole installed on the horizontal displacement slide table to approach the feed inlet with the feeding clamp as a whole. When the head of the strip rubber material clamped by the feeding clamp enters the feed inlet, the receiving mechanism of the rubber injection molding machine is started, and the receiving mechanism of the rubber injection molding machine operates to pull the strip rubber material into it, thus completing the feeding operation.

[0013] The beneficial effects of the utility model are as follows: the extension and retraction of the vertical rod for mounting the clamp is controlled by the vertical linear module, and at the same time the vertical feeding assembly is controlled by the horizontal linear module to bring the feeding clamp as a whole closer to or farther away from the feeding port of the rubber injection molding machine in a linear direction, thereby completing the feeding operation of the strip rubber material and realizing remote control operation. When feeding short materials, tail materials or replacing raw materials of different specifications, it is only necessary to control the displacement of the clamp, without the need for the operator to go back and forth many times, so the labor intensity of the operator is low and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the clamping jaw structure of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the feeding guide device according to an embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the clamping block structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example

[0019] As shown in the figure, an automatic feeding device for a rubber injection molding machine includes a connecting bracket 1, a lateral feeding assembly 2, a vertical feeding assembly 3 and a feeding clamp 4; the lateral feeding assembly 2 is fixedly connected to one side of a mounting platform 6 on the top of the injection molding machine through the connecting bracket 1;

[0020] The lateral feeding assembly 2 includes a lateral displacement slide 21 and a lateral linear module 22. The lateral displacement slide 21 is arranged on the lateral linear module 22. The lateral displacement slide 21 is controlled by a servo motor in the lateral linear module 22 to move back and forth on the lateral linear module 22, so that the lateral displacement slide 21 is close to or away from the injection molding machine feed port 7 along a straight path.

[0021] The vertical feeding assembly 3 includes a vertical linear module 31, a clamp mounting vertical rod 32 and a clamp mounting cross rod 33. The vertical linear module 31 is integrally fixed to the lateral displacement slide 21 of the lateral feeding assembly 2. The vertical linear module 31 is provided with a clamp mounting vertical rod 32. The vertical linear module 31 is used to control the extension and retraction of the clamp mounting vertical rod 32 in the vertical direction. The lower end of the clamp mounting vertical rod 32 is fixed to one end of the clamp mounting cross rod 33. The other end of the clamp mounting cross rod 33 faces the injection molding machine feed port 7 and is provided with the feeding clamp 4.

[0022] In order to improve the working efficiency of the clamping jaw 4, the clamping gap of the clamping part needs to be adjusted for strip rubber materials of different thicknesses. The feeding clamping jaw 4 includes a clamping jaw seat 41, a clamping block 42, a clamping roller 43, an adjusting screw 44, a clamping spring 45 and a telescopic cylinder 46. The front end of the clamping jaw seat 41 is provided with a notch, and the rear end of the clamping jaw seat 41 is fixedly connected to the clamping jaw mounting cross bar 33. Two bosses 411 are provided on the upper surface of one side of the notch of the clamping jaw seat 41, and the sides of the bosses 411 are respectively provided with transverse screw holes. A clamping block 42 is provided in the notch of the clamping jaw seat 41. The clamping block 42 is a long column with an inverted L-shaped cross section, the upper end is a handle, and the lower end is a clamping part. The lower end surface of the clamping block 42 is provided with three clamping rollers 43 that rotate unidirectionally in the counterclockwise direction. The lower end surface on the other side of the notch of 41 and the clamping roller 43 on the lower end surface of the clamping block 42 are also provided with three corresponding clamping rollers 43 that rotate unidirectionally in the clockwise direction, which are used to clamp the strip rubber material and prevent the rubber material from retreating due to its own gravity. The adjusting screw 44 is a T-shaped adjusting screw. One end of the adjusting screw 44 passes through the screw hole on the protruding column 411 and is fixed with an adjusting nut, and the other end passes through the clamping spring 45 and is pressed on one side of the upper end handle of the clamping block 42. A telescopic cylinder 46 is provided on the other side of the upper end handle of the clamping block 42. The clamping block 42 is clamped by applying force on both sides of the handle of the clamping block 42 through the telescopic cylinder 46 and the adjusting screw 44, and then the clamping force and gap of the clamping roller 43 are controlled by controlling the telescopic force of the telescopic cylinder 46 and the tightness of the clamping spring 45.

[0023] In order to prevent the strip rubber material at the feeding end from bending when feeding long materials, which would increase the resistance of conveying the rubber material on the displacement path of the rubber material, a feeding guide device 5 is also provided on the feeding port 7 of the injection molding machine. The feeding guide device 5 includes a connecting seat 51 fixedly connected to the feeding port 7 of the injection molding machine, a roller assembly 52, a roller mounting column 53 and a guide roller 54. The connecting seat 51 is in the shape of a rectangular plate. A through hole having the same shape and size as the feeding port 7 is provided on the connecting seat 51. The through hole on the connecting seat 51 The hole is aligned with the feed port 7, one end of the roller mounting column 53 is vertically and detachably fixed to the flat plate at the lower side of the through hole of the connecting seat 51, a plurality of roller assemblies 52 are arranged along the axial straight line on the roller mounting column 53, and a roller conveyor aligned with the feed port 7 is formed on the upper side of the roller mounting column 53, and a guide roller 54 is provided at the end of the other side of the roller mounting column 53, which is used for guiding the subsequent strip rubber after the strip rubber enters the feed port 7, so as to reduce the bending resistance of the strip rubber during the material collection process.

[0024] It also includes a PLC control system, which is used to control automatic feeding, automatic clamping, action rhythm, detect the position and length of the material, and ensure that the feeding mechanism can accurately deliver the material to the designated location.

[0025] The working principle is: the operator controls the clamping jaw mounting vertical rod 32 set on the vertical linear module 31 to extend and descend. After lowering the feeding clamping jaw 4 to a low position, the operator places the head of the strip rubber material between the clamping block 42 and the clamping roller 43 of the clamping jaw seat 41, and then controls the clamping gap between the clamping rollers 43 by controlling the telescopic amount of the telescopic cylinder 46 to clamp the strip rubber material of different thicknesses. After the head of the strip rubber material on the feeding clamping jaw 4 is clamped, the feeding clamping jaw 4 is lifted to align with the feed port by controlling the clamping jaw mounting vertical rod 32 on the vertical linear module 31 to contract, and then the horizontal linear module 22 is controlled to move the vertical feeding assembly 3 installed as a whole on the horizontal displacement slide 21 to bring the feeding clamping jaw 4 close to the feed port 7. When the head of the strip rubber material clamped by the feeding clamping jaw 4 enters the feed port 7, the receiving mechanism of the rubber injection molding machine is started, and the receiving mechanism of the rubber injection molding machine operates to pull the strip rubber material into it to complete the feeding operation.

Claims

1. An automatic feeding device for a rubber injection molding machine, characterized in that It includes a connecting bracket, a lateral feeding assembly, a vertical feeding assembly, a feeding clamp and a feeding guide device; the lateral feeding assembly is fixedly connected to one side of the mounting platform on the top of the injection molding machine through the connecting bracket; The lateral feeding assembly includes a lateral displacement slide and a lateral linear module. The lateral displacement slide is arranged on the lateral linear module. The lateral displacement slide is controlled by a servo motor in the lateral linear module to move back and forth on the lateral linear module, so that the lateral displacement slide is close to or away from the inlet of the injection molding machine along a straight path. The vertical feeding assembly includes a vertical linear module, a clamp mounting vertical rod and a clamp mounting cross rod. The vertical linear module is integrally fixed to the lateral displacement slide of the lateral feeding assembly. The vertical linear module is provided with a clamp mounting vertical rod. The vertical linear module is used to control the extension and retraction of the clamp mounting vertical rod in the vertical direction. The lower end of the clamp mounting vertical rod is fixedly connected to one end of the clamp mounting cross rod. The other end of the clamp mounting cross rod faces the feed port of the injection molding machine and is provided with the feeding clamp.

2. An automatic feeding device for a rubber injection molding machine as claimed in claim 1, characterized in that The feeding clamp comprises a clamp seat, a clamping block, a clamping roller, an adjusting screw, a clamping spring and a telescopic cylinder. The front end of the clamp seat is provided with a notch, and the rear end is fixedly connected to the clamp mounting cross bar. Two convex columns are provided on the upper surface of one side of the notch of the clamp seat, and the sides of the convex columns are respectively provided with transverse screw holes. A clamping block is provided in the notch of the clamp seat. The clamping block is a long column with an inverted L-shaped cross section, the upper end is a handle, and the lower end is a clamping part. Three clamping rollers that rotate unidirectionally in the counterclockwise direction are provided on the lower end surface of the clamp block. The lower end surface on the other side of the notch of the clamp seat is opposite to the clamping roller on the lower end surface of the clamp block. The position is also provided with three corresponding clamping rollers that rotate unidirectionally in the clockwise direction, which are used to clamp the strip rubber material and prevent the rubber material from retreating due to its own gravity. The adjusting screw is a T-shaped adjusting screw. One end of the adjusting screw passes through the screw hole on the convex column and is fixed with an adjusting nut, and the other end passes through the clamping spring and is pressed on one side of the upper end handle of the clamping block. A telescopic cylinder is provided on the other side of the upper end handle of the clamping block. The telescopic cylinder and the adjusting screw are used to apply force on both sides of the clamping block handle to clamp the clamping block, and then the clamping force and gap of the clamping roller are controlled by controlling the telescopic cylinder and the tightness of the clamping spring.

3. An automatic feeding device for a rubber injection molding machine as claimed in claim 1 or 2, characterized in that A feeding guide device is also provided on the feed port of the injection molding machine, and the feeding guide device includes a connecting seat fixedly connected to the feed port of the injection molding machine, a roller assembly, a roller mounting column and a guide roller. The connecting seat is in the shape of a rectangular plate, and is provided with a through hole consistent with the shape and size of the feed port. The through hole on the connecting seat is aligned with the feed port. One end of the roller mounting column is vertically and detachably fixed to the flat plate on the lower side of the through hole of the connecting seat. A plurality of roller assemblies are arranged in an axial straight line on the roller mounting column, and a roller track aligned with the feed port is formed on the upper side of the roller mounting column. A guide roller is provided at the end on the other side of the roller mounting column for guiding the subsequent strip rubber after the strip rubber enters the feed port.

4. An automatic feeding device for a rubber injection molding machine as claimed in claim 1 or 2, characterized in that It also includes a PLC control system, which is used to control automatic feeding, automatic clamping, action rhythm, detect the position and length of the material, and ensure that the feeding mechanism can accurately deliver the material to the designated location.

5. An automatic feeding device for a rubber injection molding machine as claimed in claim 3, characterized in that It also includes a PLC control system, which is used to control automatic feeding, automatic clamping, action rhythm, detect the position and length of the material, and ensure that the feeding mechanism can accurately deliver the material to the designated location.

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