Waste recycling and cleaning device for machine head of injection molding machine and control method of waste recycling and cleaning device

Abstract

The invention relates to the technical field of injection molding machines, in particular to a waste recycling and cleaning device of an injection molding machine head, which is applied to an injection molding machine body, comprises a base, a driving structure and the injection molding machine head, and is characterized by further comprising two groups of symmetrically distributed cleaning rings, and clamping arc plates are rotatably arranged on the inner walls of the two groups of cleaning rings; a grinding ring is arranged on the clamping arc plate; the movable assembly is used for driving the two cleaning rings to get close to or away from each other; the cleaning assembly is used for collecting sweeps generated when the grinding ring grinds the surface of the injection molding machine head; the cleaning device has the beneficial effects that through cooperation of two sets of cleaning rings, an extension rod drives a grinding ring to make contact with the surface of the injection molding machine head, then a transmission gear connected with a motor drives a clamping arc plate to rotate, then the grinding ring connected with the clamping arc plate is driven to rotate, and the rotationally-arranged grinding ring can clean the surface of the injection molding machine head; and in the cleaning process, the head of the injection molding machine realizes all-directional cleaning through resetting of the driving structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding machines, in particular to a waste recycling and cleaning device for an injection molding machine head and a control method thereof. BACKGROUND

[0002] When the injection molding machine head is in injection molding, the head is inserted into the injection molding mold. After the injection molding is completed, some molten plastic will adhere to the surface of the injection molding machine head. When the molten plastic solidifies, it will adhere to the surface of the injection molding machine head. The adhered molten plastic is usually cleaned manually, which is slow and affects the injection molding efficiency of the injection molding machine. SUMMARY

[0003] The present application aims to provide a waste recycling and cleaning device for an injection molding machine head and a control method thereof to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A waste recycling and cleaning device for an injection molding machine head is applied to an injection molding machine body, which comprises a base, a driving structure arranged at the upper end of the base, and an injection molding machine head arranged at the output end of the driving structure. The device is characterized in that it further comprises: Two groups of symmetrically distributed cleaning rings are arranged at one end of the injection molding machine head away from the driving structure, and the inner walls of the two groups of cleaning rings are each rotationally provided with a clamping arc plate, and the inner wall of each clamping arc plate is provided with a plurality of groups of polishing rings arranged at intervals. An activity assembly is used to drive the two groups of cleaning rings to move closer to or further away from each other. The activity assembly comprises a first connecting rod connected to the cleaning ring, and a guide plate is arranged at the end of the base corresponding to the end of the first connecting rod away from the cleaning ring. A cleaning assembly is used to collect the waste generated by polishing the surface of the injection molding machine head. The cleaning assembly comprises a waste collection pool arranged below the cleaning ring.

[0005] Further, the cleaning ring is in a semicircular arc structure, and the inner walls of the two groups of cleaning rings are each provided with a limiting groove in a semicircular structure. The clamping arc plate is rotationally arranged in the limiting groove. The clamping arc plate is in a semicircular arc structure, and a groove is arranged at the center of the outer wall of the clamping arc plate. An arc-shaped rack is arranged in the groove. A plurality of groups of spacers are arranged between the inner bottom end of the groove and the lower end corresponding to the arc-shaped rack.

[0006] Further, the two ends of the clamping arc plate are provided with a tooth groove adapted to the arc-shaped rack. The inner part of one of the cleaning rings is provided with a transmission gear at a position corresponding to the arc-shaped rack, the transmission gear is connected with a motor, and the two sets of clamping arc plates rotate in the inner part of the two sets of cleaning rings through cooperation of the transmission gear and the two sets of arc-shaped racks; The inner wall of the two sets of clamping arc plates is provided with a plurality of sets of extension rods distributed at intervals, and the end of each set of extension rods away from the clamping arc plate is connected with the polishing ring; Each set of extension rods includes a plurality of extension rods, the end of each extension rod is provided with a plug-in hole, the end of an adjacent other extension rod is plugged into the corresponding plug-in hole, a fifth reset spring is arranged between the inside of the plug-in hole and the end of the corresponding extension rod, the adjacent two extension rods are elastically connected through the fifth reset spring, and the polishing ring is connected with the end of the topmost extension rod.

[0007] Further, the end of each of the two sets of arc-shaped racks is provided with a fixing hole, and the two sets of fixing holes are circumferentially distributed, the inside of each of the two sets of fixing holes is provided with a receiving hole at a position corresponding to the inside of the two sets of clamping arc plates, a plug rod is plugged into the inside of the receiving hole, a sixth reset spring is arranged between the end of the plug rod and the inner end face of the receiving hole, and the plug rod is elastically arranged in the inside of the receiving hole through the sixth reset spring; The inside of one of the extension rods on the clamping arc plate is provided with a through hole, the through hole sequentially penetrates the extension rods and the clamping arc plate and is connected with the receiving hole, and the inside of the through hole is provided with a first pull rope, the two ends of the first pull rope are respectively connected with the end of the plug rod and the end of the topmost extension rod; The side wall of each of the two sets of clamping arc plates is provided with a receiving groove at a position corresponding to the plug rod, a clamping block is plugged into the inside of each receiving groove, a seventh reset spring is arranged between the end of the clamping block and the inner end face of the corresponding receiving groove, the clamping block is elastically arranged in the inside of the receiving groove through the seventh reset spring, and the inside of the limiting groove is provided with a clamping groove at a position corresponding to the end of the clamping block. The receiving groove and the through hole are connected, and a connecting line is arranged between the side wall of the clamping block and the first pull rope.

[0008] Further, the guide plate is arranged at the upper end of the waste collecting pool, the upper end of the guide plate is provided with a first guide groove at the central position, the inside of the first guide groove is slidably provided with two sets of symmetrically distributed first guide blocks, and each first guide block is provided with a sliding block; The first connecting rod is in a "7" type structure, and the end of the first connecting rod away from the cleaning ring is connected with the upper end of the sliding block. First reset springs are arranged between the end of the first guide block and the corresponding side wall of the inner part of the first guide slot, and the first connecting rod is elastically connected with the guide plate through cooperation of the first guide block and the first reset spring.

[0009] Further, the movable assembly further comprises a second air bag arranged between the two groups of sliding blocks. A limiting plate is arranged on one side of the driving structure, a first air bag is arranged between the end of the driving structure and the limiting plate, an exhaust pipe is arranged between the first air bag and the second air bag, and the first air bag is in communication with the second air bag through the exhaust pipe.

[0010] Further, a second guide slot is arranged at the position of the guide plate, a second guide block is slidably arranged in the second guide slot, the bottom of the second guide block is connected with the scraper, a second reset spring is arranged between the side wall of the second guide block and the inner side wall of the second guide slot, and the scraper is elastically connected with the guide plate through the second reset spring. A third air bag is arranged between the inner side wall of the second guide block and the inner end face of the second guide slot, an exhaust duct is arranged between the third air bag and the second air bag, and the third air bag is in communication with the exhaust duct through the second air bag. The elastic force of the first reset spring is greater than the elastic force of the second reset spring.

[0011] Further, two groups of symmetrically distributed collecting boxes are arranged in the inside of the waste collecting pool corresponding to the position of the scraper. A connecting plate is arranged on the side wall of the guide plate corresponding to the position of the scraper, a second connecting rod is insertedly arranged at the end of the connecting plate, one end of the second connecting rod penetrates through the connecting plate and is connected with a fixing block, a fixing groove is arranged at the upper end of the scraper corresponding to the position of the fixing block, and an inclined surface is arranged on the bottom side of the fixing block. The other end of the second connecting rod is connected with a trigger plate, and a fourth reset spring is arranged between the lower end of the trigger plate and the upper end face of the connecting plate. The trigger plate is in an inclined state, and the direction from low to high of the trigger plate is consistent with the moving direction of the injection molding machine head.

[0012] Further, a supporting rod is connected with the side wall of the driving structure corresponding to the position of the trigger plate, a let-go slot is arranged at the end of the supporting rod close to the side wall of the trigger plate corresponding to the position of the trigger plate, a push block is slidably arranged in the let-go slot, and a third reset spring is arranged between the upper end of the push block and the inner top end of the let-go slot. The side wall of the base is provided with a through slot corresponding to the position of the support rod.

[0013] Further, the method comprises: Cleaning of the waste inside the waste collecting pool: after the injection molding of the injection molding machine head is completed, the driving structure is started to drive the injection molding machine head to move backward, and when the driving structure drives the injection molding machine head to move backward, the support rod on one side of the driving structure drives the push block to move towards the trigger plate. Since the trigger plate is inclined and the high end of the trigger plate is away from the driving structure, the push block gradually lifts the trigger plate during movement. At this time, the trigger plate moves the fixed block out of the fixed slot under the action of the second connecting rod. When the fixed block no longer limits the scraper, the sliding block extrudes the second air bag under the action of the first return spring, so that the gas inside the second air bag is discharged into the third air bag through the exhaust pipe, the third air bag expands, and the scraper moves along the guide plate, thereby cleaning the waste inside the waste collecting pool and cleaning the waste into the collecting box for centralized treatment. Cleaning of the surface of the injection molding machine head: when the sliding block moves through the first return spring, it drives the two groups of cleaning rings connected with the first connecting rod to be spliced with each other and to be sleeved on the outside of the injection molding machine head. When sleeving, the polishing ring is in contact with the surface of the injection molding machine head under the elastic cooperation of each extension rod. When contacting, due to the influence of the diameter of the injection molding machine head, the adjacent two groups of extension rods contract, and when the topmost extension rod contracts, the elastically arranged insertion rod is no longer inserted into the fixed hole under the tension of the first pull rope, thereby limiting and fixing the arc-shaped rack. At the same time, the clamping block is moved out of the clamping groove under the tension of the seventh return spring, and then the motor connected with the transmission gear is started, which drives the two groups of clamping arc plates to rotate, thereby driving the polishing ring connected with the clamping arc plate to rotate. The polishing ring arranged to rotate can clean the surface of the injection molding machine head, and the cleaned waste falls into the waste collecting pool.

[0014] Compared with the prior art, the beneficial effects of the present application are: 1. The two groups of first connecting rods are used to clamp the two groups of cleaning rings on the outer surface of the injection molding machine head. When clamping, the elastically arranged extension rods drive the polishing ring to contact the surface of the injection molding machine head. Then the transmission gear connected with the motor drives the clamping arc plate to rotate, thereby driving the polishing ring connected with the clamping arc plate to rotate. The polishing ring arranged to rotate can clean the surface of the injection molding machine head, and the cleaned waste falls into the waste collecting pool. 2. When the two sets of first connecting rods drive the two sets of cleaning rings to move close to each other, the second air bag inside is squeezed, the second air bag inside expands to push the scraper to move, and the scraped waste is cleaned and collected, at the same time, when the injection molding machine head is driven to move out of the injection mold, the driving structure will gradually stop squeezing the first air bag, at this time, the scraper is reset under the action of the second reset spring, and the third air bag inside is discharged to the first air bag through the cooperation of the exhaust pipe and the exhaust pipe. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the three-dimensional structure of the application; Figure 2 It is a schematic view of the side part of the three-dimensional structure of the application; Figure 3 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 4 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 3 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 5 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 6 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 5 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 7 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 8 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 9 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 10 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 9 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 11 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 12 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application; Figure 11 It is a schematic view of the structure connection between the guide plate and the cleaning ring of the application;

[0016] In the figure: base 1, drive structure 2, injection molding machine body 3, injection molding machine head 5, cleaning ring 7, guide plate 8, waste collection pool 9, collection box 10, first air bag 11, exhaust pipe 12, first return spring 13, sliding block 14, first guide block 15, first connecting rod 16, second air bag 17, first guide groove 18, scraper 19, connecting plate 20, fixed block 21, second connecting rod 22, fixed groove 23, trigger plate 24, extension rod 25, polishing ring 26, exhaust duct 27, second guide groove 28, second guide block 29, third air bag 30, second return spring 31, support rod 32, through groove 33, accommodation groove 34, third return spring 35, push block 36, fourth return spring 37, chamfer 38, limiting groove 39, clamping arc plate 40, groove 41, arc-shaped rack 42, spring piece 43, transmission gear 44, insertion hole 45, fifth return spring 46, through hole 47, first pull rope 48, fixing hole 49, storage hole 50, insertion rod 51, sixth return spring 52, clamping groove 53, clamping block 54, storage groove 55, seventh return spring 56. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail in an exemplary manner in conjunction with the drawings.

[0018] Example one: Please refer to Figures 1 to 12 The present application provides a technical solution: a waste recycling and cleaning device for an injection molding machine head, applied to an injection molding machine body 3, the injection molding machine body 3 comprising a base 1, a drive structure 2 arranged at the upper end of the base 1, and an injection molding machine head 5 arranged at the output end of the drive structure 2, characterized in that it further comprises: Two groups of symmetrically distributed cleaning rings 7, two groups of cleaning rings 7 are arranged at one end of the injection molding machine head 5 away from the drive structure 2, and the inner walls of the two groups of cleaning rings 7 are rotatably provided with clamping arc plates 40, and the inner walls of each clamping arc plate 40 are mounted with a plurality of groups of polishing rings 26 distributed at intervals; A movable assembly for driving the two groups of cleaning rings 7 to approach or move away from each other, the movable assembly comprising a first connecting rod 16 connected with the cleaning ring 7, and the base 1 is provided with a guide plate 8 corresponding to the end position of the first connecting rod 16 away from the cleaning ring 7; A cleaning assembly for collecting the waste generated by the polishing ring 26 polishing the surface of the injection molding machine head 5, the cleaning assembly comprising a waste collection pool 9 arranged below the cleaning ring 7; The injection molding is realized through the injection molding machine head 5 connected with the driving structure 2, after the injection molding is completed, the two groups of cleaning rings 7 are driven to move towards the injection molding machine head 5, so that the clamping arc plate 40 is sleeved on the outer surface of the injection molding machine head 5, in the rotating process, the polishing ring 26 connected with the clamping arc plate 40 can realize the polishing of the surface of the injection molding machine head 5, after the polishing is completed, the waste material polished can be recycled through the cleaning assembly.

[0019] Embodiment two: As shown in Figures 2-3 and Figures 11-12 The waste material recycling and cleaning device of the injection molding machine head disclosed in the embodiment two of the present application is basically same as that in the embodiment one, and the difference is that: The cleaning ring 7 is in a semicircular arc structure, and the inner wall of the two groups of cleaning rings 7 is provided with a limiting groove 39 in a semicircular structure, and the two groups of limiting grooves 39 are provided with a clamping arc plate 40 in the inside in a limiting rotation mode; The clamping arc plate 40 is in a semicircular arc structure, and the outer wall center position of the clamping arc plate 40 is provided with a recess 41, and the recess 41 is provided with an arc-shaped rack 42 in a size matching mode in the inside; A plurality of groups of elastic sheets 43 are arranged between the inner bottom end of the recess 41 and the lower end part corresponding to the arc-shaped rack 42.

[0020] The two ends of the clamping arc plate 40 are provided with a gear slot on the upper end face, and the gear slot is matched with the arc-shaped rack 42; The inside of one group of cleaning rings 7 is provided with a transmission gear 44 at the position corresponding to the arc-shaped rack 42, the transmission gear 44 is connected with a motor, and the two groups of clamping arc plates 40 rotate in the inside of the two groups of cleaning rings 7 through the cooperation of the transmission gear 44 and the two groups of arc-shaped racks 42; The inner wall of the two groups of clamping arc plates 40 is provided with a plurality of groups of extension rods 25 arranged at intervals, and the end part of each group of extension rods 25 away from the clamping arc plate 40 is connected with the polishing ring 26; Each group of extension rods 25 contains a plurality of, the end part of each extension rod 25 is provided with a plug-in hole 45, the end part of the adjacent other extension rod 25 is plugged in the inside of the corresponding plug-in hole 45, and the fifth reset spring 46 is arranged between the inside of the plug-in hole 45 and the end part of the corresponding extension rod 25, the adjacent two extension rods 25 are elastically connected through the fifth reset spring 46, and the polishing ring 26 is connected with the end part of the topmost extension rod 25.

[0021] The end of the two groups of arc-shaped racks 42 is provided with a fixing hole 49, and the two groups of fixing holes 49 are circumferentially distributed, the two groups of fixing holes 49 are provided with a receiving hole 50 at the inner position corresponding to the two groups of clamping arc plates 40, the receiving hole 50 is provided with a plug rod 51 inserted in the inside, and the end of the plug rod 51 and the inner end surface of the receiving hole 50 are provided with a sixth reset spring 52, and the plug rod 51 is elastically arranged in the inside of the receiving hole 50 through the sixth reset spring 52; The inside of one of the groups of extension rods 25 on the clamping arc plate 40 is provided with a through hole 47, the through hole 47 penetrates each extension rod 25 and the clamping arc plate 40 in sequence and is connected with the receiving hole 50, and the inside of the through hole 47 is provided with a first pull rope 48, and the two ends of the first pull rope 48 are connected with the end of the plug rod 51 and the end of the topmost extension rod 25 respectively; The sidewall of the two groups of clamping arc plates 40 is provided with a receiving groove 55 at the position corresponding to the plug rod 51, the inside of each receiving groove 55 is provided with a clamping block 54 inserted, and the end of the clamping block 54 and the inner end surface of the corresponding receiving groove 55 are provided with a seventh reset spring 56, the clamping block 54 is elastically arranged in the inside of the receiving groove 55 through the seventh reset spring 56, and the inside of the limiting groove 39 is provided with a clamping groove 53 at the position corresponding to the end of the clamping block 54; The receiving groove 55 and the through hole 47 are connected, and the sidewall of the clamping block 54 and the first pull rope 48 are provided with a connecting line; The two groups of cleaning rings 7 are sleeved on the outside of the injection molding machine head 5, when sleeving, under the elastic cooperation of each extension rod 25, the polishing ring 26 is in contact with the surface of the injection molding machine head 5, when contacting, due to the influence of the diameter of the injection molding machine head 5, the adjacent two groups of extension rods 25 are contracted, when the topmost extension rod 25 is contracted, the elastically arranged plug rod 51 is no longer pulled by the first pull rope 48 and is inserted into the inside of the fixing hole 49, the limiting and fixing of the arc-shaped rack 42 are completed, at the same time, the clamping block 54 is pulled out from the inside of the clamping groove 53 by the seventh reset spring 56, then the motor connected with the transmission gear 44 is started, the two groups of clamping arc plates 40 are driven to rotate through the motor, and the polishing ring 26 connected with the clamping arc plate 40 is driven to rotate, the polishing ring 26 arranged to rotate can clean the surface of the injection molding machine head 5, during cleaning, the injection molding machine head 5 is moved backward through the driving structure 2, the all-round cleaning of the injection molding machine head 5 is realized, when the cleaning is completed, the polishing ring 26 is no longer resisted by the injection molding machine head 5, at this time, the topmost extension rod 25 will pull the plug rod 51 from the inside of the fixing hole 49 through the first pull rope 48, at the same time, the elastically arranged clamping block 54 is stretched out, when the clamping block 54 is coincided with the clamping groove 53 driven by the clamping arc plate 40 arranged to rotate, the clamping block 54 is inserted into the inside of the clamping groove 53, the limiting of the clamping arc plate 40 is realized, and the arc-shaped rack 42 engaged with the transmission gear 44 is pressed into the groove 41, until the transmission gear 44 stops rotating.

[0022] Embodiment three: As Figures 2-3 and Figures 11-12 shown, the waste recycling cleaning device of the injection molding machine head disclosed in embodiment three of the present application is basically the same as that in embodiment two, and the difference lies in that: The guide plate 8 is arranged at the upper end of the waste collecting pool 9, and a first guide groove 18 is formed at the center of the upper end of the guide plate 8, and two groups of symmetrically distributed first guide blocks 15 are slidably arranged in the first guide groove 18, and a sliding block 14 is mounted on each first guide block 15; The first connecting rod 16 is in a "7" type structure, and the end of the first connecting rod 16 away from the cleaning ring 7 is connected to the upper end of the sliding block 14; First reset springs 13 are arranged between the ends of the two groups of first guide blocks 15 and the corresponding side walls of the inside of the first guide groove 18, and the first connecting rod 16 is elastically connected with the guide plate 8 through the cooperation of the first guide blocks 15 and the first reset springs 13.

[0023] The movable assembly further includes a second air bag 17 arranged between the two groups of sliding blocks 14; A limiting plate is arranged on one side of the driving structure 2, a first air bag 11 is arranged between the end of the driving structure 2 and the limiting plate, an exhaust pipe 12 is arranged between the first air bag 11 and the second air bag 17, and the first air bag 11 is connected in communication with the second air bag 17 through the exhaust pipe 12.

[0024] A scraper 19 is slidably arranged in the inside of the waste collecting pool 9, a second guide groove 28 is formed at the position corresponding to the scraper 19 at the lower end of the guide plate 8, a second guide block 29 is slidably arranged in the inside of the second guide groove 28, the bottom of the second guide block 29 is connected with the scraper 19, and a second reset spring 31 is arranged between the side wall of one side of the second guide block 29 and the inside side wall of the second guide groove 28, and the scraper 19 is elastically connected with the guide plate 8 through the second reset spring 31; A third air bag 30 is arranged between the inside side wall of the second guide block 29 and the inside end face of the second guide groove 28, an exhaust pipe 27 is formed between the third air bag 30 and the second air bag 17, and the third air bag 30 is connected in communication with the exhaust pipe 27 through the second air bag 17; The elastic force of the first reset spring 13 is greater than the elastic force of the second reset spring 31; Two groups of symmetrically distributed collecting boxes 10 are arranged in the inside of the waste collecting pool 9 at the position corresponding to the scraper 19; After the injection molding machine head 5 is completed, the driving structure 2 is started, and the driving structure 2 drives the injection molding machine head 5 to move backward. When the driving structure 2 drives the injection molding machine head 5 to move backward, the supporting rod 32 on one side of the driving structure 2 drives the push block 36 to move towards the trigger plate 24. Since the trigger plate 24 is inclinedly arranged, and the high end of the trigger plate 24 is away from the driving structure 2, the push block 36 gradually lifts the trigger plate 24 during the movement. At this time, the trigger plate 24 moves the fixed block 21 out of the fixed groove 23 under the action of the second connecting rod 22. When the fixed block 21 no longer limits the scraper 19, the sliding block 14 extrudes the second air bag 17 under the action of the first return spring 13, so that the gas in the second air bag 17 is discharged into the third air bag 30 through the exhaust pipe 27. The third air bag 30 expands and pushes the scraper 19 to move along the guide plate 8, thereby cleaning the waste in the waste collection tank 9 and collecting the waste into the collection box 10 for centralized treatment.

[0025] Embodiment four: As shown in Figures 3-4 and Figures 7-8 The waste recovery and cleaning device of the injection molding machine head disclosed in the fourth embodiment of the present application is basically the same as that in the third embodiment, and the difference lies in that: A connecting plate 20 is arranged on one side wall of the guide plate 8 corresponding to the position of the scraper 19. The end of the connecting plate 20 is inserted and arranged with a second connecting rod 22. One end of the second connecting rod 22 penetrates through the connecting plate 20 and is connected with a fixed block 21. The upper end of the scraper 19 is arranged with a fixed groove 23 corresponding to the position of the fixed block 21. The bottom side of the fixed block 21 is arranged with an inclined surface 38. The other end of the second connecting rod 22 is connected with a trigger plate 24. The lower end of the trigger plate 24 and the upper end surface of the connecting plate 20 are arranged with a fourth return spring 37. The trigger plate 24 is in an inclined state. The direction from low to high of the trigger plate 24 is consistent with the moving direction of the injection molding machine head 5.

[0026] The driving structure 2 is connected with a supporting rod 32 corresponding to one side wall of the trigger plate 24. The end of the supporting rod 32 close to the trigger plate 24 is arranged with a let-go slot 34 corresponding to the position of the trigger plate 24. The let-go slot 34 is slidably arranged with a push block 36 inside. The upper end of the push block 36 and the inner top end of the let-go slot 34 are arranged with a third return spring 35. The sidewall of the base 1 is arranged with a through slot 33 corresponding to the position of the supporting rod 32. The limiting and fixing of the scraper 19 is realized through the cooperation of the fixing block 21 and the fixing groove 23, when the scraper 19 is fixed, the third air bag 30 cannot be inflated, when the drive structure 2 drives the injection molding machine head 5 to perform injection molding, the first air bag 11 is extruded, the gas in the first air bag 11 is discharged to the inside of the second air bag 17 through the exhaust pipe 12, the second air bag 17 is inflated, the two groups of sliding blocks 14 are pushed away from each other, and then the two groups of cleaning rings 7 are separated, realizing the normal work of the injection molding machine head 5. When the injection molding machine head 5 completes injection molding, the drive structure 2 drives the injection molding machine head 5 to move backward, during the movement of the drive structure 2, the trigger plate 24 is lifted through the shift block 36 on the supporting rod 32, and then the fixing block 21 is moved out of the inside of the fixing groove 23, when the fixing block 21 is moved out, the scraper 19 is no longer limited and fixed, at this time, the third air bag 30 can store gas, the gas in the second air bag 17 is discharged to the inside of the third air bag 30 through the exhaust pipe 27, the third air bag 30 is inflated to push the scraper 19, and the sliding block 14 is pushed to move the two groups of cleaning rings 7 towards the injection molding machine head 5 under the action of the first reset spring 13, realizing the cleaning of the surface of the injection molding machine head 5.

[0027] The specific scheme is: the injection molding machine head 5 is driven by the drive structure 2 to perform injection molding, when the drive structure 2 moves, the first air bag 11 is extruded, the gas in the first air bag 11 is discharged to the inside of the second air bag 17 through the exhaust pipe 12, the second air bag 17 is inflated, the two groups of sliding blocks 14 are pushed away from each other, and then the two groups of cleaning rings 7 are separated, realizing the normal work of the injection molding machine head 5. When the injection molding machine head 5 is completed, the driving structure 2 drives the injection molding machine head 5 to move backward, and in the process of moving backward, the driving structure 2 drives the trigger plate 24 to rise through the shift block 36 on the support rod 32, and then the fixed block 21 is moved out of the fixed groove 23, at this time, the scraper 19 is no longer limited and fixed, the third air bag 30 can store gas, the gas in the second air bag 17 is discharged to the third air bag 30 through the exhaust pipe 27, the third air bag 30 expands to push the scraper 19, the scraper 19 cleans the waste in the waste collection tank 9, at the same time, the sliding block 14 drives the two groups of cleaning rings 7 to move towards the injection molding machine head 5 under the action of the first reset spring 13, and in the process of moving, the polishing ring 26 is in contact with the surface of the injection molding machine head 5 under the elastic cooperation of each extension rod 25, and in the process of contact, due to the influence of the diameter of the injection molding machine head 5, the adjacent two groups of extension rods 25 are contracted, and when the topmost extension rod 25 is contracted, the elastic plug rod 51 is no longer pulled by the first pull rope 48 and is inserted into the fixed hole 49, the limiting and fixing of the arc-shaped rack 42 are completed, at the same time, the clamping block 54 is moved out of the clamping groove 53 under the action of the seventh reset spring 56, then the motor connected with the transmission gear 44 is started, the two groups of clamping arc plates 40 are driven to rotate through the motor, and then the polishing ring 26 connected with the clamping arc plate 40 is rotated, and the polishing ring 26 can clean the surface of the injection molding machine head 5, in the process of cleaning, the injection molding machine head 5 moves backward through the driving structure 2, and the injection molding machine head 5 is cleaned in all directions, when the cleaning is completed, the polishing ring 26 is no longer resisted by the injection molding machine head 5, at this time, the topmost extension rod 25 moves the plug rod 51 from the fixed hole 49 through the first pull rope 48, at the same time, the elastically arranged clamping block 54 is extended, when the clamping arc plate 40 drives the clamping block 54 to coincide with the clamping groove 53, the clamping block 54 is inserted into the clamping groove 53, the limiting of the clamping arc plate 40 is realized, and the arc-shaped rack 42 engaged with the transmission gear 44 is pressed into the groove 41 until the transmission gear 44 stops rotating. When the driving structure 2 moves to a certain position, the scraper 19 discharges the gas in the third air bag 30 to the first air bag 11 under the action of the second reset spring 31, at this time, the scraper 19 is reset and continues to be limited by the elastically arranged fixed block 21.

[0028] The present application is intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Accordingly, any one of the foregoing omissions, modifications, equivalents, improvements, etc. are intended to be included within the scope of the present application.

Claims

1. A waste recycling and cleaning device for an injection molding machine head, applied to an injection molding machine body (3), the injection molding machine body (3) comprising a base (1), a drive structure (2) disposed at the upper end of the base (1), and an injection molding machine head (5) disposed at the output end of the drive structure (2), characterized in that, Also includes: Two sets of symmetrically distributed cleaning rings (7) are provided at one end of the injection molding machine head (5) away from the drive structure (2), and the inner walls of the two sets of cleaning rings (7) are rotatably provided with snap-fit ​​arc plates (40), and the inner walls of each snap-fit ​​arc plate (40) are equipped with multiple sets of spaced grinding rings (26). An active component is used to move two sets of cleaning rings (7) closer to each other or further away from each other. The active component includes a first connecting rod (16) connected to the cleaning ring (7), and the base (1) is provided with a guide plate (8) at the end position of the first connecting rod (16) away from the cleaning ring (7). A cleaning assembly for collecting waste generated by the grinding ring (26) grinding the surface of the injection molding machine head (5), the cleaning assembly including a waste collection pool (9) disposed below the cleaning ring (7).

2. The waste recycling and cleaning device for the injection molding machine head according to claim 1, characterized in that, The cleaning ring (7) has a semi-circular arc structure, and the inner walls of both sets of the cleaning ring (7) are provided with a semi-circular limiting groove (39), and the interior of both sets of the limiting groove (39) is provided with a locking arc plate (40) for limiting rotation. The snap-fit ​​arc plate (40) has a semi-circular arc structure, and a groove (41) is provided at the center of the outer wall of the snap-fit ​​arc plate (40). An arc-shaped toothed rack (42) of appropriate size is provided inside the groove (41). Multiple sets of spaced spring pieces (43) are provided between the inner bottom end of the groove (41) and the lower end of the corresponding arc-shaped rack (42).

3. The waste recycling and cleaning device for the injection molding machine head according to claim 2, characterized in that, The upper surfaces of both ends of the snap-fit ​​arc plate (40) are provided with tooth grooves that are compatible with the arc-shaped toothed rack (42); One of the cleaning rings (7) has a transmission gear (44) installed inside at a position corresponding to the arc rack (42). The transmission gear (44) is connected to a motor. The two sets of snap-fit ​​arc plates (40) rotate inside the two sets of cleaning rings (7) through the cooperation of the transmission gear (44) and the two sets of arc racks (42). Multiple sets of spaced extension rods (25) are installed on the inner walls of both sets of snap-fit ​​arc plates (40), and the end of each set of extension rods (25) away from the snap-fit ​​arc plate (40) is connected to the grinding ring (26). Each set of extension rods (25) includes multiple extension rods. Each extension rod (25) has an insertion hole (45) at its end. The end of another adjacent extension rod (25) is inserted into the corresponding insertion hole (45). A fifth return spring (46) is provided between the inside of the insertion hole (45) and the end of the corresponding extension rod (25). Two adjacent extension rods (25) are elastically connected by the fifth return spring (46). The grinding ring (26) is connected to the end of the topmost extension rod (25).

4. The waste recycling and cleaning device for the injection molding machine head according to claim 3, characterized in that, Both sets of the arc-shaped racks (42) have fixing holes (49) at their ends, and the two sets of fixing holes (49) are circumferentially distributed. The two sets of fixing holes (49) have storage holes (50) at the internal positions of the two sets of snap-fit ​​arc plates (40). A rod (51) is inserted into the storage hole (50), and a sixth return spring (52) is provided between the end of the rod (51) and the internal end face of the storage hole (50). The rod (51) is elastically set inside the storage hole (50) by the sixth return spring (52). The extension rods (25) of the snap-fit ​​arc plate (40) have through holes (47) inside. The through holes (47) pass through each extension rod (25) and the snap-fit ​​arc plate (40) in sequence and are connected to the storage hole (50). A first pull rope (48) is provided inside the through hole (47). The two ends of the first pull rope (48) are respectively connected to the end of the insertion rod (51) and the end of the topmost extension rod (25). The sidewalls of the two sets of snap-fit ​​arc plates (40) are provided with storage slots (55) at the positions corresponding to the plug rods (51). Each storage slot (55) is provided with a snap-fit ​​block (54). A seventh return spring (56) is provided between the end of the snap-fit ​​block (54) and the inner end face of the corresponding storage slot (55). The snap-fit ​​block (54) is elastically disposed inside the storage slot (55) by the seventh return spring (56). The inner sidewall of the limiting groove (39) is provided with a snap-fit ​​groove (53) at the position corresponding to the end of the snap-fit ​​block (54). The storage slot (55) and the through hole (47) are connected, and a connecting line is provided between the side wall of the snap block (54) and the first pull rope (48).

5. The waste recycling and cleaning device for the injection molding machine head according to claim 1, characterized in that, The guide plate (8) is disposed at the upper end of the waste collection pool (9), and a first guide groove (18) is provided at the center of the upper end of the guide plate (8). Two sets of symmetrically distributed first guide blocks (15) are slidably disposed inside the first guide groove (18), and each first guide block (15) is equipped with a sliding block (14). The first connecting rod (16) has a "7" shaped structure, and the end of the first connecting rod (16) away from the cleaning ring (7) is connected to the upper end of the sliding block (14); A first return spring (13) is provided between the ends of the two sets of first guide blocks (15) and the corresponding inner sidewalls of the first guide groove (18). The first connecting rod (16) is elastically connected to the guide plate (8) through the cooperation of the first guide block (15) and the first return spring (13).

6. The waste recycling and cleaning device for the injection molding machine head according to claim 5, characterized in that, The active component also includes a second airbag (17) disposed between the two sets of sliding blocks (14); A limiting plate is provided on one side of the drive structure (2), and a first airbag (11) is provided between the end of the drive structure (2) and the limiting plate. An exhaust pipe (12) is provided between the first airbag (11) and the second airbag (17). The first airbag (11) is connected to the second airbag (17) through the exhaust pipe (12).

7. The waste recycling and cleaning device for the injection molding machine head according to claim 6, characterized in that, The waste collection pool (9) is slidably provided with a scraper (19). The lower end of the guide plate (8) is provided with a second guide groove (28) corresponding to the position of the scraper (19). The second guide groove (28) is slidably provided with a second guide block (29). The bottom of the second guide block (29) is connected to the scraper (19). A second return spring (31) is provided between one side wall of the second guide block (29) and the inner side wall of the second guide groove (28). The scraper (19) is elastically connected to the guide plate (8) through the second return spring (31). A third airbag (30) is provided between the inner side wall of the second guide block (29) and the inner end face of the second guide groove (28). An exhaust pipe (27) is provided between the third airbag (30) and the second airbag (17). The third airbag (30) is connected to the exhaust pipe (27) through the second airbag (17). The elastic force of the first reset spring (13) is greater than that of the second reset spring (31).

8. The waste recycling and cleaning device for the injection molding machine head according to claim 7, characterized in that, Inside the waste collection pool (9), at a position corresponding to the scraper (19), there are two sets of symmetrically distributed collection boxes (10). A connecting plate (20) is provided on one side wall of the guide plate (8) at the position corresponding to the scraper (19). A second connecting rod (22) is inserted into the end of the connecting plate (20). One end of the second connecting rod (22) passes through the connecting plate (20) and is connected to a fixing block (21). A fixing groove (23) is opened at the upper end of the scraper (19) at the position corresponding to the fixing block (21). A beveled surface (38) is provided on one side of the bottom of the fixing block (21). The other end of the second connecting rod (22) is connected to a trigger plate (24), and a fourth reset spring (37) is provided between the lower end of the trigger plate (24) and the upper end face of the connecting plate (20). The trigger plate (24) is tilted, and the direction of the trigger plate (24) from low to high is consistent with the direction of movement of the injection molding machine head (5).

9. The waste recycling and cleaning device for the injection molding machine head according to claim 8, characterized in that, The drive structure (2) is connected to a support rod (32) on one side wall corresponding to the trigger plate (24). A relief groove (34) is provided on one side wall of the support rod (32) near the trigger plate (24) at the position corresponding to the trigger plate (24). A toggle block (36) is slidably arranged inside the relief groove (34), and a third return spring (35) is provided between the upper end of the toggle block (36) and the top end of the relief groove (34). The side wall of the base (1) is provided with a through groove (33) at the position corresponding to the support rod (32).

10. A control method for a waste material recycling and cleaning device for an injection molding machine head, characterized in that, The method includes a waste recycling and cleaning device for the injection molding machine head as described in any one of claims 1-9, wherein the method comprises: Waste collection pool (9) cleaning: After the injection molding machine head (5) finishes injection molding, the drive structure (2) is started. The drive structure (2) drives the injection molding machine head (5) to move backward. When the drive structure (2) drives the injection molding machine head (5) to move backward, the support rod (32) on one side of the drive structure (2) will drive the lever (36) to move toward the trigger plate (24). Since the trigger plate (24) is tilted and the higher end of the trigger plate (24) is far away from the drive structure (2), the lever (36) gradually lifts the trigger plate (24) during the movement. At this time, the trigger plate (24) is in the second connection Under the action of the rod (22), the fixing block (21) is moved out of the fixing groove (23). When the fixing block (21) no longer limits the scraper (19), the sliding block (14) squeezes the second airbag (17) under the action of the first reset spring (13), so that the gas inside the second airbag (17) is discharged into the third airbag (30) through the exhaust pipe (27). The third airbag (30) expands and pushes the scraper (19) to move along the guide plate (8), thereby cleaning the waste inside the waste collection pool (9) and cleaning the waste into the collection box (10) for centralized processing. Cleaning of the surface of the injection molding machine head (5): When the sliding block (14) moves by the first return spring (13), it drives the two sets of cleaning rings (7) connected to the first connecting rod (16) to splice together, and makes the two sets of cleaning rings (7) fit on the outside of the injection molding machine head (5). When fitted, under the elastic cooperation of each extension rod (25), the grinding ring (26) contacts the surface of the injection molding machine head (5). When in contact, due to the influence of the diameter of the injection molding machine head (5), the adjacent two sets of extension rods (25) retract. When the top extension rod (25) retracts, the elastically set insert (51) no longer... The first pull rope (48) pulls the block into the fixing hole (49) to complete the limiting and fixing of the arc rack (42). At the same time, the snap block (54) is pulled out from the snap groove (53) by the seventh return spring (56). Then the motor connected to the transmission gear (44) is started. The motor drives the two sets of snap arc plates (40) to rotate, which in turn drives the grinding ring (26) connected to the snap arc plate (40) to rotate. The rotating grinding ring (26) can clean the surface of the injection molding machine head (5). The waste material that is cleaned off falls into the waste collection pool (9).

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