CN221089748U - Automatic injection moulding device of key - Google Patents

Abstract

The utility model provides an automatic injection molding device for keys, which belongs to the field of automatic production of hardware parts and comprises a key sheet feeding assembly, a key head feeding assembly, a molding machine, a water gap punching mechanism and other parts, wherein the full automation of a production line can be realized; the key head feeding machine assembly further comprises a key positioning assembly for performing secondary positioning on the key sheet accessory; the accurate positioning of the key sheet accessory and the key head accessory can be realized; the utility model has the characteristics of high working efficiency, stability, reliability, high automation degree, high product qualification rate and the like.

Description

Automatic injection moulding device of key

Technical Field

The utility model belongs to the field of hardware part automatic production equipment, and particularly relates to an automatic key injection molding device.

Background

The production of some car keys on the market need with make-up machine to key piece accessory and key head accessory location then injection moulding, die-cut mouth of a river then ejection of compact again, and former key injection moulding production line is mostly semi-automatic production line, needs a large amount of manpower to intervene, and human cost is huge, and product quality is unstable moreover, and the circumstances of key piece accessory and key head accessory location inaccuracy still often exist in partial key injection moulding production line, and the product disqualification rate is higher.

Disclosure of utility model

In order to solve the problems, the utility model provides an automatic injection molding device for a key; the automatic key injection molding device comprises a key sheet feeding assembly, a key head feeding assembly, a molding machine, a water gap punching mechanism and other parts, and can realize full automation of a production line; the key head feeding machine assembly further comprises a key positioning assembly for performing secondary positioning on the key sheet accessory; the accurate positioning of the key sheet accessory and the key head accessory can be realized; the utility model has the characteristics of high working efficiency, stability, reliability, high automation degree, high product qualification rate and the like.

The utility model achieves the above purpose through the following detailed technical scheme:

The automatic key injection molding device comprises a key sheet feeding assembly, a key head feeding assembly and a molding machine, wherein the direction of a production line is that the key sheet feeding assembly flows to the key head feeding assembly and then to the molding machine; the key head feeding machine assembly comprises a key positioning assembly for performing secondary positioning on a key sheet accessory; the key positioning assembly comprises a key positioning jig set for fixing the key head accessory and the key sheet accessory and a positioning strip for performing secondary positioning on the key sheet accessory; a product groove matched with the shape and the size of the product key is formed above the key positioning jig set; the positioning strips are arranged in a strip shape in the key positioning jig set and are connected with the key positioning jig set in a sliding manner; the positioning strip is provided with a convex structure which moves on a product groove above the key positioning jig set and corresponds to a positioning opening on a key sheet correctly placed on the product groove; the outer end of the positioning strip is connected with a servo power structure.

The key head feeding unit assembly further comprises a first bottom plate fixed with the production line, and the direction of the forming machine is right after the direction of the key sheet feeding assembly is the direction of the forming machine; the first bottom plate is arranged on the right side of the key head feeding unit assembly and in front of the key sheet feeding assembly;

The key positioning assembly further comprises a first sliding table cylinder, a positioning cylinder, a second sliding table cylinder, a key sheet feeding table, a perforation strip, a perforation table, a perforation cylinder and a baffle sheet;

The first sliding table cylinder is arranged at the rear part of the first bottom plate, the first sliding table cylinder is arranged in a left-right sliding direction, the key positioning jig set is fixedly arranged on a sliding table of the first sliding table cylinder, one end of the positioning strip is connected to a cylinder shaft of the positioning cylinder, and the positioning cylinder is fixed at one side of the key positioning jig set; the second sliding table cylinder is arranged behind the first sliding table cylinder, is fixed with the production line and has a sliding direction of left and right; the key piece feeding table is fixed on the sliding table of the second sliding table cylinder, the key piece feeding table is of a cuboid structure, the front-back width of the key piece feeding table is equal to the length of a raw material key piece, a key piece channel is arranged in the front-back direction of the key piece feeding table, the key piece channel is communicated in the key piece feeding table in the front-back direction, and the width of the key piece channel is equal to the cross section of the raw material key piece; the perforating table is arranged behind the cylinder of the second sliding table and is fixed on the first bottom plate, the perforating bar penetrates through the upper part of the perforating table and is connected with the perforating table in a front-back sliding way, the arranged height of the perforating bar is consistent with the height of a key piece on the key positioning jig set, the rear end of the perforating bar is connected with the cylinder shaft of the perforating cylinder, the direction of the cylinder shaft of the perforating cylinder is forward, and the perforating cylinder is fixed at the rearmost end of the first bottom plate; the separation blade is arranged in front of the key blade feeding table and fixed on the first bottom plate, and the front-back direction of the separation blade is aligned with the feeding port of the key blade feeding assembly.

The key head feeding machine assembly further comprises a feeding rack assembly, a feeding conveying line and an empty disc discharging conveying line; the feeding rack assembly is fixedly arranged with the production line, and the feeding conveying line is arranged at the front half part of the left side of the feeding rack assembly in a conveying belt feeding structure; the empty disc discharging conveying line is arranged at the rear half part of the left side of the feeding rack assembly and is arranged side by side with the feeding conveying line; a pulley block structure is arranged in the empty disc discharging conveying line; the width of the feeding conveying line and the empty disc discharging conveying line are matched with that of a square key head plastic sucking tray, and a plurality of grooves which are arranged side by side and matched with key head accessories are key head grooves; the feeding conveying line and the empty disc discharging conveying line form a field-shaped structure, the key head plastic sucking tray enters from the left side of the feeding conveying line to the right, flows out from the right side of the empty disc discharging conveying line to the left, and a supporting component is arranged below the right side of the empty disc discharging conveying line.

Wherein, the key head feeding unit assembly also comprises a tray taking mechanism; the tray taking mechanism comprises a sucker group, a first cylinder, a guide post, a tray taking movable seat, a tray taking suspension arm and a rodless cylinder; the suction disc group is of square design and is arranged above the space between the feeding conveying line and the empty disc discharging conveying line, a negative pressure suction disc is arranged on the suction disc group, the opening of the negative pressure suction disc is downward, and the position of the negative pressure suction disc corresponds to the flat position on the key head plastic suction tray; the center above the sucker group is connected with the cylinder shaft of the first cylinder, the cylinder shaft of the first cylinder is downwards arranged, and the cylinder seat of the first cylinder is fixed at the left side end of the tray taking suspension arm; the lower end of the guide column is fixed above the sucker group, and the middle upper end of the guide column is connected with the left side end of the tray taking boom in an up-down sliding manner; the tray taking suspension arm is of a transverse beam-shaped structure in a left-right trend, the right end of the tray taking suspension arm is fixedly connected with the tray taking movable seat, and the lower part of the tray taking movable seat is connected with the first bottom plate in a front-back sliding manner; the tray taking movable seat is characterized in that the rodless cylinder is further arranged below the tray taking movable seat, a cylinder sliding seat of the rodless cylinder is fixedly connected with the lower portion of the tray taking movable seat, sliding shafts of the rodless cylinder move forwards and backwards, and two ends of the sliding shafts of the rodless cylinder are fixed on the first bottom plate.

Wherein, the key head feeding unit assembly also comprises a key head taking mechanism; the key head material taking mechanism comprises a left-right transverse moving electric cylinder, a material taking arm support, a front-back transverse moving electric cylinder, a material taking base and a material taking sucker; the left-right lateral movement electric cylinder is arranged at the rear side of the feeding rack assembly and horizontally arranged in a left-right direction; the material taking arm support is a columnar support, the lower end of the material taking arm support is fixedly connected with a sliding block of the left-right transverse moving electric cylinder, and the upper end of the material taking arm support is fixedly connected with the rear side end of the material taking arm support; the material taking boom is of a cross beam structure and is perpendicular to the material taking boom, and the material taking boom is provided with the front-back transverse moving electric cylinder; the front and back transverse moving electric cylinder is horizontally arranged in the front and back direction; the material taking cylinder is arranged on the front-back transverse moving electric cylinder; the material taking base is fixedly connected with the material taking cylinder downwards along the cylinder shaft and is of a square plate-shaped structure; the material taking base is fixedly connected with the material taking sucker; the material taking sucker is arranged downwards.

The automatic injection molding device for the key also comprises a water gap punching mechanism, wherein the water gap punching mechanism comprises a water gap cutting cylinder, a rotary cutter, a blade, a water gap punching base and a key jig set, and the water gap punching base is fixed with a production line and is arranged on one side of a molding machine; the key jig set is fixedly arranged on the right side above the water gap punching base, the rotary cutter is arranged on the left side of the water gap punching base and is in a half-moon shape, the middle of the rotary cutter is rotationally connected with the water gap punching base, the lower end of the rotary cutter is hinged with a cylinder shaft of a water gap cutting cylinder, the water gap cutting cylinder is hinged below the water gap punching base, the upper end of the rotary cutter is fixedly provided with a blade, and the edge of the blade is downwards aligned with the water gap position of a product key on the key jig set.

The automatic key injection molding device also comprises a finished key string material rack assembly; the finished key material stringing frame assembly comprises a buffer cylinder, a buffer head, a material stringing frame sensor, a material stringing strip, a material stringing frame base and a buffer cylinder base; the material stringing frame base is fixedly connected with the production line and is arranged at one side of the water gap punching mechanism; the buffer cylinder bases are columnar, perpendicular to the horizontal plane and fixed above the stringing frame bases, a plurality of buffer cylinders are arranged on the buffer cylinder bases from top to bottom in an evenly distributed mode, the buffer heads are connected to cylinder shafts of the buffer cylinders, and the buffer heads are horizontally arranged and have the same direction; the material stringing strip is in a flat strip shape and is perpendicular to the horizontal plane and is arranged on the base of the material stringing frame, the material stringing strip is arranged on the right side behind the buffer head, the upper end of the material stringing strip is slightly pointed, the lower end of the material stringing strip is expanded, the middle of the material stringing strip is uniform, the cross section of the middle part of the material stringing strip is smaller than the hanging hole of the key head accessory, and the cross section of the expanded part of the lower end of the material stringing strip is larger than the hanging hole of the key head accessory; the finished key penetrated by the stringing bar can be supported by the extended buffer head; the number of the serial material rack sensors is consistent with the number of the buffer cylinders, and the serial material rack sensors are arranged at the rear side of the buffer head and aligned with serial material strips.

The automatic injection molding device for the key also comprises a mechanical arm for placing the key and a mechanical arm for taking out a finished product, wherein a discharging clamp matched with the key head accessory and the key sheet accessory is arranged on the mechanical arm for placing the key, and the key head accessory and the key sheet accessory can be accurately sucked at the same time; the finished product taking mechanical arm is provided with a finished product taking clamp matched with the finished product key, so that the finished product key can be accurately absorbed; the key placing mechanical arm is arranged between the key head feeding machine assembly and the forming machine; the finished product taking mechanical arm is arranged between the forming machine and the water gap punching mechanism.

The utility model has the beneficial effects that:

1. The automatic injection molding device for the key is provided with a key positioning assembly, wherein the key positioning assembly comprises a perforation strip and a positioning strip; the perforation strip carries out feeding and carries out first location to key piece accessory, and the locating strip carries out secondary location to key piece accessory under the drive of location cylinder, and the setting of locating strip makes the location between key head accessory and the key piece accessory more accurate, has promoted the quality of product greatly.

2. The utility model discloses an automatic key injection molding device which comprises a key sheet feeding assembly, a key head feeding unit assembly, a key placing mechanical arm, a molding machine, a finished product taking mechanical arm, a water gap punching mechanism and a finished product key string material rack assembly, wherein the key head feeding unit assembly comprises a feeding rack assembly, a feeding conveying line, a tray taking mechanism, an empty disc discharging conveying line, a key head taking mechanism and a key positioning assembly; from the material loading of full-load key head plastic uptake tray, to the ejection of compact of key head plastic uptake tray empty disc, go to the material loading of key head accessory, the material loading of key piece accessory, get put the key, injection moulding, die-cut mouth of a river, finished product key string material scheduling flow all realize automaticly, need not artifical the participation, use manpower sparingly, product quality is stable simultaneously, production efficiency is high.

Drawings

Fig. 1 is a schematic perspective view of an automatic injection molding device for a key according to the present utility model. (containing product Key)

Fig. 2 is a schematic perspective view of a tray taking mechanism and a key positioning assembly in the present utility model. (containing product Key)

Fig. 3 is a schematic perspective view of a key head extracting mechanism in the utility model. (including key head fittings)

Fig. 4 is a schematic perspective view of a key positioning assembly according to the present utility model. (containing product Key)

FIG. 5 is a schematic view of another angular perspective of the key positioning assembly of the present utility model. (containing product Key)

Fig. 6 is a schematic perspective view of a nozzle punching mechanism according to the present utility model. (containing product Key)

Fig. 7 is a schematic perspective view of another angle of the nozzle punching mechanism in the present utility model. (containing product Key)

Fig. 8 is a schematic perspective view of a finished key chain rack assembly according to the present utility model. (containing product Key)

Detailed Description

The utility model is described in detail below with reference to the drawings and the specific embodiments.

1-8, An automatic key injection molding device comprises a key sheet feeding assembly 1, a key head feeding unit assembly 2, a key placing mechanical arm 3, a molding machine 4, a finished product taking mechanical arm 5, a water gap punching mechanism 6 and a finished product key string material frame assembly 7; after the direction of the key sheet feeding assembly 1 is the right direction of the forming machine 4;

the key head feeding machine assembly 2 comprises a feeding rack assembly 20, a feeding conveying line 21, a tray taking mechanism, an empty tray discharging conveying line 23, a key head taking mechanism, a key positioning assembly and a first bottom plate 37;

Wherein, the feeding frame assembly 20 is fixedly installed with the production line, and the feeding conveyor line 21 is a conveyor belt feeding structure and is arranged at the front half part of the left side of the feeding frame assembly 20; the empty disc discharging conveying line 23 is arranged at the left rear half part of the feeding rack assembly 20 and is arranged side by side with the feeding conveying line 21; a pulley block structure is arranged in the empty disc discharging conveying line 23; the feeding conveying line 21 and the empty disc discharging conveying line 23 are matched with a square key head plastic sucking tray for use, and a plurality of grooves which are arranged side by side and matched with key head accessories are arranged in the key head plastic sucking tray and are key head grooves for orderly placing the key head accessories of a whole disc so as to facilitate feeding; the feeding conveying line 21 and the empty disc discharging conveying line 23 form a field-shaped structure, a key head plastic sucking tray enters from the left side of the feeding conveying line 21 to the right, flows out from the right side of the empty disc discharging conveying line 23 to the left, a supporting component is arranged below the right side of the empty disc discharging conveying line 23, and the pulley block structure on the right side of the empty disc discharging conveying line 23 can be lifted; the first bottom plate 37 is arranged on the right side of the feeding frame assembly 20 and in front of the key sheet feeding assembly 1, the tray taking mechanism is fixedly arranged at the front end of the first bottom plate 37, and the key positioning assembly is fixedly arranged at the rear end of the first bottom plate 37.

The tray taking mechanism comprises a sucker group 30, a first cylinder 31, a guide post 32, a tray taking movable seat 33, a tray taking suspension arm 34, a rodless cylinder 35 and a first guide rail 36; the suction cup group 30 is square in design and is arranged above the space between the feeding conveying line 21 and the empty disc discharging conveying line 23, four negative pressure suction cups are arranged at four corners of the suction cup group, the openings of the negative pressure suction cups are downward, and the positions of the negative pressure suction cups correspond to the side edge flat positions of the key head groove positions on the key head plastic suction tray; the center above the sucker group 30 is connected with the cylinder shaft of the first cylinder 31, the cylinder shaft of the first cylinder 31 is arranged downwards, and the cylinder seat of the first cylinder 31 is fixed at the left side end of the tray taking boom 34; the two guide posts 32 are arranged, the lower ends of the guide posts 32 are fixed above the sucker groups 30, and the middle upper ends of the guide posts 32 are connected with the left side end of the tray taking boom 34 in an up-down sliding manner through linear bearings; the tray taking suspension arm 34 is of a left-right-direction cross beam structure, the left end of the tray taking suspension arm 34 is connected with the sucker set 30 through the first cylinder 31 and the guide column 32, the right end of the tray taking suspension arm 34 is fixed on the tray taking movable seat 33, a columnar structure is arranged above the tray taking movable seat 33 and fixedly connected with the right end of the tray taking suspension arm 34, and the lower part of the tray taking movable seat 33 is in sliding connection with the first guide rail 36 through a sliding block; the first guide rail 36 is fixed on the first bottom plate 37 in a front-back trend, and the first bottom plate 37 is fixedly connected with a production line; the lower part of the tray taking movable seat 33 is also provided with the rodless cylinder 35, a cylinder sliding seat of the rodless cylinder 35 is fixedly connected with the lower part of the tray taking movable seat 33, a sliding shaft of the rodless cylinder 35 is parallel to the first guide rail 36 and is provided with one side of the first guide rail 36, and two ends of the sliding shaft of the rodless cylinder 35 are fixed on the first bottom plate 37.

The key head material taking mechanism comprises a left-right transverse movement electric cylinder 40, a material taking arm support 42, a material taking arm 43, a front-back transverse movement electric cylinder 44, a material taking air cylinder 45, a material taking base 46, a material taking sucker 47 and a support column 48; the left and right lateral movement electric cylinder 40 is arranged at the rear side of the feeding frame assembly 20 and horizontally arranged in a left and right direction; the material taking arm support 42 is a columnar support, the lower end of the material taking arm support 42 is fixedly connected with a sliding block of the left-right lateral movement electric cylinder 40, and the upper end of the material taking arm support 42 is fixedly connected with the rear side end of the material taking arm support 43; the material taking boom 43 is of a beam-shaped structure and is perpendicular to the material taking boom 42, and the material taking boom 43 is provided with the front-back transverse moving electric cylinder 44; the front-back transverse movement electric cylinder 44 is horizontally arranged in a front-back direction; the material taking cylinder 45 is arranged on the front-back transverse movement electric cylinder 44; the material taking cylinder 45 is a parallel bar cylinder in the same direction; the material taking base 46 is fixedly connected to the material taking cylinder 45 in the axial direction of the cylinder, and the material taking base 46 is of a square plate-shaped structure; two material taking suckers 47 are fixedly connected to the material taking base 46; the material taking sucker 47 is arranged downwards, the distance between the two material taking sucker 47 is equal to the center distance between two adjacent key head grooves in the key head plastic sucking tray, two supporting columns 48 are arranged beside the material taking sucker 47, each supporting column 48 is of a cylindrical structure and is arranged downwards, the upper ends of the supporting columns 48 are fixed on the lower side of the material taking base 46, the lower ends of the supporting columns 48 are slightly higher than the plane where the bottoms of the material taking sucker 47 are located, and the supporting columns 48 are used for playing a role of propping against the key head plastic sucking tray when the material taking sucker 47 absorbs key head accessories.

The key positioning assembly comprises a first sliding table cylinder 50, a key positioning jig set 51, a positioning cylinder 52, a second sliding table cylinder 53, a key sheet feeding table 54, a perforation strip 55, a perforation table 56, a perforation cylinder 57, a baffle sheet 58 and a feeding table sensor 59; the first sliding table cylinder 50 is arranged at the rear end of the first bottom plate 37, the first sliding table cylinder 50 is arranged in a left-right sliding direction, the key positioning jig set 51 is fixedly arranged on a sliding table of the first sliding table cylinder 50, two product grooves matched with the shape and the size of a product key are arranged above the key positioning jig set 51, a positioning strip 60 is connected in the key positioning jig set 51 in a left-right sliding way, the positioning strip 60 is in a strip shape, two protruding structures 61 are arranged on the positioning strip 60 and move on the product grooves above the key positioning jig set 51 and correspond to positioning openings on key sheets correctly placed on the product grooves, the right end of the positioning strip 60 is connected to the cylinder shaft of the positioning cylinder 52, and the positioning cylinder 52 is fixed on the right side of the key positioning jig set 51; the convex structure 61 moves from left to right on the product groove through the contraction of the positioning cylinder 52 and is clamped at the positioning opening on the key sheet, so that the accurate positioning function of the key sheet is realized; the second sliding table cylinder 53 is installed at the rear of the first sliding table cylinder 50, and the second sliding table cylinder 53 is fixed on the first bottom plate 37 and the sliding direction is the left-right direction; the sliding table of the second sliding table cylinder 53 is fixed with the key sheet feeding table 54, the key sheet feeding table 54 is of a cuboid structure, the front-back width of the key sheet feeding table is equal to the length of a raw material key sheet, a key sheet channel 62 is arranged in the front-back direction of the key sheet feeding table 54, the key sheet channel 62 is a square channel and is communicated with the inside of the key sheet feeding table 54 in the front-back direction, and the width of the key sheet channel 62 is equal to the cross section of the raw material key sheet; the perforation table 56 is arranged behind the second sliding table cylinder 53 and is fixed with the first bottom plate 37, the perforation bar 55 passes through the upper part of the perforation table 56 and is connected with the perforation table 56 in a front-back sliding way, the arranged height of the perforation bar 55 is consistent with the height of a key sheet on the key positioning jig set 51, the rear end of the perforation bar 55 is connected with a cylinder shaft of the perforation cylinder 57, the cylinder shaft of the perforation cylinder 57 is forward, and the perforation cylinder 57 is fixed at the rearmost end of the first bottom plate 37; the stretching of the perforating cylinder 57 can drive the perforating strip 55 to slide back and forth; when the first sliding table cylinder 50 slides to the front end of the perforation bar 55 aligned with the key piece on the positioning jig set 51, the front end of the perforation bar 55 can be abutted against the rear end of the key piece on the positioning jig set 51; the baffle plate 58 is arranged in front of the key sheet feeding table 54 and is fixed with the first bottom plate 37, the baffle plate 58 is aligned with the feeding port of the key sheet feeding assembly 1, when the key sheet feeding table 54 moves to the right to a designated position, the front end of a key sheet channel 62 on the key sheet feeding table 54 is abutted against the baffle plate 58, and the rear end of the key sheet channel 62 is connected with the feeding port of the key sheet feeding assembly 1; the loading table sensor 59 is disposed on the key blade loading table 54 and is in communication with the key blade channel 62 from above, for detecting the key blade loading condition in the key blade channel 62.

The water gap punching mechanism 6 comprises a water gap cutting cylinder 63, a rotary cutter 64, a blade 65, a water gap punching base 66 and a key jig set 67, wherein the water gap punching base 66 is fixed with a production line and is arranged on the front side of the finished product taking mechanical arm 5; the key tool group 67 fixed mounting is in the die-cut base 66 top right side in mouth of a river, rotatory cutterbar 64 sets up to install in the die-cut base 66 left side in mouth of a river, and rotatory cutterbar 64 is half moon shape platy, and rotatory cutterbar 64 centre and the die-cut base 66 swivelling joint in mouth of a river, two rotatory cutterbar 64 lower extreme simultaneously with the cylinder axle of cutting mouth of a river cylinder 63 articulates, cuts mouth of a river cylinder 63 articulates in the die-cut base 66 below in mouth of a river, and rotatory cutterbar 64 upper end fixed mounting has blade 65, and the edge of a knife of blade 65 is aimed at the mouth of a river position of the product key on the key tool group 67 down, and through the flexible of cutting mouth of a river cylinder 63, blade 65 can realize the die-cut to the mouth of a river of product key.

The finished key stringing rack assembly 7 comprises a buffer cylinder 70, a buffer head 71, a stringing rack sensor 72, a stringing bar 73, a stringing rack base 74 and a buffer cylinder base 75; the material stringing frame base 74 is fixedly connected with the production line and is arranged at one side of the water gap punching mechanism 6; the buffer cylinder bases 75 are columnar and vertical to the horizontal plane, two buffer cylinders 70 are arranged above the material stringing frame bases 74 and are fixed side by side, each buffer cylinder 70 is provided with eight buffer cylinders, each buffer cylinder 70 is arranged on one buffer cylinder base 75 in a group, the buffer cylinders 70 are uniformly distributed from top to bottom and aligned up to bottom, and the cylinder axis direction of each buffer cylinder 70 is in the horizontal direction and points to the right rear; the cylinder shaft of the buffer cylinder 70 is connected with the buffer head 71, the buffer head 71 is a cylindrical rubber particle, the material-stringing strip 73 is in a flat strip shape and is perpendicular to the lower end of a horizontal plane and detachably arranged on the material-stringing frame base 74, the material-stringing strip 73 is arranged on the right side behind the buffer head 71, the upper end of the material-stringing strip 73 is slightly pointed, the lower end of the material-stringing strip is expanded, the middle of the material-stringing strip is uniform, the cross section of the middle part of the material-stringing strip is smaller than the hanging hole of a key head accessory, and the cross section of the expanded part of the lower end of the material-stringing strip is larger than the hanging hole of the key head accessory; when the buffer head 71 extends out, the finished key penetrated by the material stringing strip 73 can be supported by the buffer head 71; the number of the string rack sensors 72 is identical to the number of the buffer cylinders 70, and the string rack sensors are arranged at the rear side of the buffer head 71 and aligned with the string strips 73 for detecting string conditions.

The working flow of the utility model is as follows:

First, the feeding conveyor line 21 conveys a whole stack of several key head plastic sucking trays filled with key head accessories to the right side of the feeding conveyor line 21 from left to right, the tray taking mechanism in the feeding unit assembly 2 works, the rodless cylinder 35 slides forward to drive the sucking disc group 30 to move forward to the position above the key head plastic sucking tray on the right side of the feeding conveyor line 21, the first cylinder 31 stretches out, the sucking disc group 30 sucks the key head plastic sucking tray filled with the key head accessories downwards, the first cylinder 31 contracts and the rodless cylinder 35 moves backwards, and the key head plastic sucking tray filled with the key head accessories is transferred to the right side of the empty disc discharging conveyor line 23.

Then, the key head material taking mechanism works, the left and right transverse moving electric cylinder 40 and the front and back transverse moving electric cylinder 44 are positioned, the material taking cylinder 45 stretches out to be matched with the material taking sucker 47 to take materials, the material taking cylinder 45 contracts after material taking, the left and right transverse moving electric cylinder 40 moves to the right, the front and back transverse moving electric cylinder 44 moves to the back, and two key head accessories sucked on the material taking sucker 47 are transferred to the key positioning jig set 51 in the key positioning assembly.

Then, the key positioning assembly is operated, and the loading table sensor 59 detects that the key blade of the key blade channel 62 in the key blade loading table 54 completely enters the key blade channel 62; the perforation cylinder 57 drives the perforation strip 55 to shrink back until the perforation strip 55 is in the perforation table 56; the second sliding table cylinder 53 drives the key sheet feeding table 54 to move leftwards until the rear of the key sheet channel 62 is aligned with the front of the perforation strip 55; the first sliding table cylinder 50 drives the key positioning jig set 51 to horizontally move to the front end of the key sheet channel 62 aligned with the key sheet die opening of the product groove on the key positioning jig set 51; the perforating cylinder 57 drives the perforating bar 55 to extend forwards until the perforating bar 55 is completely inserted into the key sheet channel 62; the key blade is ejected into the key blade mold of the product groove on the key positioning jig set 51; in the same way, another key blade is ejected into the key blade mold of another product groove on the key positioning jig set 51; at this time, the positioning cylinder 52 is contracted to drive the two protruding structures 61 on the positioning strip 60 to position the two key sheets, and after the positioning is completed, the positioning cylinder 52 drives the protruding structures 61 to be loosened.

Then, the mechanical arm 3 for placing keys works, and the two groups of positioned key sheets and key heads are precisely sucked into the forming machine 4 for injection molding; after injection molding, the finished robotic arm 5 takes out a pair of keys of the uncut nozzle and places them precisely in the key jig set 67 of the nozzle punching mechanism 6.

Then, the water gap punching mechanism 6 works, the water gap cutting cylinder 63 stretches out to drive the blade 65 on the rotary cutter 64 to punch the water gap of a pair of keys in the key jig set 67; after the water gap punching is finished, the finished product mechanical arm 5 takes away a pair of keys in the key jig set 67, and the hanging holes of the keys are aligned with the stringing strips 73 in the finished product key stringing frame assembly 7, so that the keys are threaded into the stringing strips 73 one by one.

Finally, the finished key string material rack assembly 7 works, the uppermost buffer cylinder 70 extends to enable a key to fall on a buffer head 71 connected to a cylinder shaft of the cylinder, the buffer cylinder 70 immediately below extends, the uppermost buffer cylinder 70 contracts, the key falls on the second buffer heads 71 from the uppermost buffer head 71, and the operation is repeated until the key falls on an expansion position at the lower end of a string material bar 73, and when the string material rack sensor 72 detects that the key at the lower end is full, the corresponding buffer cylinder 70 does not extend; the serial bars 73 may be replaced until the number of finished keys on the serial bars 73 reaches a specified number.

When the key heads on the key head plastic sucking trays on the right side of the empty disc discharging conveying line 23 are used up, the empty disc discharging conveying line 23 removes the empty key head plastic sucking trays from the left again, and a new key head plastic sucking tray filled with key head accessories is placed in the empty disc discharging conveying line by a tray taking mechanism.

The above examples illustrate only one embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (8)

1. An automatic key injection molding device comprises a key sheet feeding assembly (1), a key head feeding assembly (2) and a molding machine (4), wherein the direction of a production line is that the key sheet feeding assembly (1) flows to the key head feeding assembly (2) and then to the molding machine (4); the key head feeding machine assembly (2) is characterized by comprising a key positioning assembly for performing secondary positioning on a key sheet accessory; the key positioning assembly comprises a key positioning jig set (51) for fixing the key head accessory and the key sheet accessory and a positioning strip (60) for performing secondary positioning on the key sheet accessory; a product groove matched with the shape and the size of the product key is formed above the key positioning jig set (51); the positioning strips (60) are arranged in a strip shape in the key positioning jig set (51) and are in sliding connection with the key positioning jig set (51); the positioning strip (60) is provided with a protruding structure (61) which is movably arranged on a product groove above the key positioning jig set (51) and corresponds to a positioning opening on a key sheet correctly placed on the product groove; the outer end of the positioning strip (60) is connected with a servo power structure.

2. The automatic injection molding device for keys according to claim 1, wherein the key head feeding machine assembly (2) further comprises a first bottom plate (37) fixed with the production line, and the direction of the molding machine (4) is right after the direction of the key sheet feeding assembly (1) is right; the first bottom plate (37) is arranged on the right side of the key head feeding assembly (2) and in front of the key blade feeding assembly (1);

The key positioning assembly further comprises a first sliding table cylinder (50), a positioning cylinder (52), a second sliding table cylinder (53), a key sheet feeding table (54), a perforation strip (55), a perforation table (56), a perforation cylinder (57) and a baffle sheet (58);

The first sliding table cylinder (50) is arranged at the rear part of the first bottom plate (37), the first sliding table cylinder (50) is arranged in a left-right sliding direction, the key positioning jig set (51) is fixedly arranged on a sliding table of the first sliding table cylinder (50), one end of the positioning strip (60) is connected to a cylinder shaft of the positioning cylinder (52), and the positioning cylinder (52) is fixed at one side of the key positioning jig set (51); the second sliding table cylinder (53) is arranged behind the first sliding table cylinder (50), and the second sliding table cylinder (53) is fixed with the production line and the sliding direction is the left-right direction; the key piece feeding table (54) is fixed on a sliding table of the second sliding table cylinder (53), the key piece feeding table (54) is of a cuboid structure, the front-back width of the key piece feeding table is equal to the length of a raw material key piece, a key piece channel (62) is arranged in the front-back direction of the key piece feeding table (54), the key piece channel (62) is communicated in the key piece feeding table (54) in the front-back direction, and the width of the key piece channel (62) is equal to the cross section of the raw material key piece; the perforating table (56) is arranged behind the second sliding table cylinder (53) and is fixed on the first bottom plate (37), the perforating bar (55) penetrates through the upper part of the perforating table (56) and is connected with the perforating table (56) in a front-back sliding mode, the arranged height of the perforating bar (55) is consistent with the height of a key sheet on the key positioning jig set (51), the rear end of the perforating bar (55) is connected with a cylinder shaft of the perforating cylinder (57), the cylinder shaft direction of the perforating cylinder (57) is forward, and the perforating cylinder (57) is fixed at the rearmost end of the first bottom plate (37); the baffle plate (58) is arranged in front of the key sheet feeding table (54) and fixed on the first bottom plate (37), and the front and back directions of the baffle plate (58) are aligned with the feeding port of the key sheet feeding assembly (1).

3. The automatic key injection molding device according to claim 2, wherein the key head feeding unit assembly (2) further comprises a feeding frame assembly (20), a feeding conveyor line (21) and an empty disc discharging conveyor line (23); the feeding rack assembly (20) is fixedly arranged with the production line, and the feeding conveying line (21) is arranged at the front half part of the left side of the feeding rack assembly (20) for a conveying belt feeding structure; the empty disc discharging conveying line (23) is arranged at the left rear half part of the feeding rack assembly (20) and is arranged side by side with the feeding conveying line (21); a pulley block structure is arranged in the empty disc discharging conveying line (23); the width of the feeding conveying line (21) and the width of the empty disc discharging conveying line (23) are matched with that of a square key head plastic sucking tray, and a plurality of grooves which are arranged side by side and matched with key head accessories are key head grooves; the feeding conveying line (21) and the empty disc discharging conveying line (23) form a field-shaped structure, the key head plastic sucking tray enters from the left side of the feeding conveying line (21) to the right, flows out from the right side of the empty disc discharging conveying line (23) to the left, and a supporting component is arranged below the right side of the empty disc discharging conveying line (23).

4. A key automatic injection moulding device according to claim 3, wherein the key head charging unit assembly (2) further comprises a tray taking mechanism; the tray taking mechanism comprises a sucker group (30), a first cylinder (31), a guide column (32), a tray taking movable seat (33), a tray taking suspension arm (34) and a rodless cylinder (35); the suction disc group (30) is of square design, is arranged above the space between the feeding conveying line (21) and the empty disc discharging conveying line (23), is provided with a negative pressure suction disc, and is downward in opening and corresponds to the flat part on the key head plastic suction tray; the center above the sucker group (30) is connected with the cylinder shaft of the first cylinder (31), the cylinder shaft of the first cylinder (31) is arranged downwards, and the cylinder seat of the first cylinder (31) is fixed at the left side end of the tray taking boom (34); the lower end of the guide column (32) is fixed above the sucker group (30), and the middle upper end of the guide column (32) is connected with the left side end of the tray taking boom (34) in an up-down sliding manner; the tray taking suspension arm (34) is of a transverse beam-shaped structure in a left-right trend, the right end of the tray taking suspension arm (34) is fixedly connected with the tray taking movable seat (33), and the lower part of the tray taking movable seat (33) is connected with the first bottom plate (37) in a front-back sliding manner; the tray taking movable seat (33) is characterized in that the rodless cylinder (35) is further arranged below the tray taking movable seat (33), a cylinder sliding seat of the rodless cylinder (35) is fixedly connected with the lower portion of the tray taking movable seat (33), sliding shafts of the rodless cylinder (35) move forwards and backwards, and two ends of the sliding shafts of the rodless cylinder (35) are fixed on the first bottom plate (37).

5. The automatic key injection molding device according to claim 4, wherein the key head feeding unit assembly (2) further comprises a key head extracting mechanism; the key head material taking mechanism comprises a left-right transverse movement electric cylinder (40), a material taking arm support (42), a material taking arm (43), a front-back transverse movement electric cylinder (44), a material taking cylinder (45), a material taking base (46) and a material taking sucker (47); the left-right lateral movement electric cylinder (40) is arranged at the rear side of the feeding rack assembly (20) and horizontally arranged in a left-right direction; the material taking arm support (42) is a columnar frame, the lower end of the material taking arm support (42) is fixedly connected with a sliding block of the left-right lateral movement electric cylinder (40), and the upper end of the material taking arm support (42) is fixedly connected with the rear side end of the material taking arm support (43); the material taking boom (43) is of a cross beam structure and is perpendicular to the material taking boom (42), and the material taking boom (43) is provided with the front-back transverse moving electric cylinder (44); the front and back transverse moving electric cylinder (44) is horizontally arranged in a front and back trend; the material taking cylinder (45) is arranged on the front-back transverse movement electric cylinder (44); the material taking base (46) and the material taking base (46) are fixedly connected to the lower part of the cylinder shaft of the material taking cylinder (45) and are of square plate-shaped structures; the material taking base (46) is fixedly connected with the material taking sucker (47); the material taking sucker (47) is arranged downwards.

6. A key automatic injection moulding device according to any of claims 2-5, characterized in that it further comprises a nozzle punching mechanism (6), said nozzle punching mechanism (6) comprising a nozzle cutting cylinder (63), a rotary cutter (64), a blade (65), a nozzle punching base (66) and a key jig set (67), said nozzle punching base (66) being fixed to the production line and mounted on one side of the moulding machine (4); the utility model discloses a die-cut base of mouth of a river die-cut base (66) top right side is installed to key tool group (67), rotary cutter (64) are installed in mouth of a river die-cut base (66) left side, and rotary cutter (64) are half moon shape platy, rotary cutter (64) centre and mouth of a river die-cut base (66) swivelling joint, rotary cutter (64) lower extreme with cut the cylinder axle of mouth of a river cylinder (63) articulated, cut mouth of a river cylinder (63) articulated in mouth of a river die-cut base (66) below, rotary cutter (64) upper end fixed have blade (65), and the edge of a knife of blade (65) is aimed at the mouth of a river position of the product key on key tool group (67) down.

7. A key automatic injection moulding device according to claim 6, characterized in that it further comprises a finished key string magazine assembly (7); the finished key material-stringing frame assembly (7) comprises a buffer cylinder (70), a buffer head (71), a material-stringing frame sensor (72), a material-stringing strip (73), a material-stringing frame base (74) and a buffer cylinder base (75); the material-mixing frame base (74) is fixedly connected with the production line and is arranged at one side of the water gap punching mechanism (6); the buffer cylinder bases (75) are columnar, vertical to the horizontal plane and fixed above the material stringing frame bases (74), a plurality of buffer cylinders (70) are arranged on the buffer cylinder bases (75) in a uniform distribution mode from top to bottom, the buffer heads (71) are connected to cylinder shafts of the buffer cylinders (70), and the buffer heads (71) are horizontally arranged and have the same direction; the material stringing strip (73) is in a flat strip shape and is perpendicular to a horizontal plane and is arranged on the material stringing frame base (74), the material stringing strip (73) is arranged on the right side behind the buffer head (71), the upper end of the material stringing strip (73) is slightly pointed, the lower end of the material stringing strip is expanded, the middle of the material stringing strip is uniform, the cross section of the middle part of the material stringing strip is smaller than the hanging hole of the key head accessory, and the cross section of the expanded part of the lower end of the material stringing strip is larger than the hanging hole of the key head accessory; the finished key penetrated by the material string (73) can be supported by the extended buffer head (71); the number of the string rack sensors (72) is consistent with the number of the buffer cylinders (70), and the string rack sensors are arranged at the rear side of the buffer head (71) and aligned with the string strips (73).

8. The automatic injection molding device for the key according to claim 7, further comprising a mechanical arm (3) for placing the key and a mechanical arm (5) for taking out the finished product, wherein a discharging clamp matched with a key head accessory and a key sheet accessory is arranged on the mechanical arm (3) for placing the key, and the key head accessory and the key sheet accessory can be simultaneously and precisely absorbed; the finished product taking mechanical arm (5) is provided with a finished product taking clamp matched with a finished product key, so that the finished product key can be accurately absorbed; the key placing mechanical arm (3) is arranged between the key head feeding machine assembly (2) and the forming machine (4); the finished product taking mechanical arm (5) is arranged between the forming machine (4) and the water gap punching mechanism (6).