CN117359837B - Extrusion device with anti-blocking function for dental gun head production - Google Patents
Extrusion device with anti-blocking function for dental gun head production Download PDFInfo
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- CN117359837B CN117359837B CN202311649428.4A CN202311649428A CN117359837B CN 117359837 B CN117359837 B CN 117359837B CN 202311649428 A CN202311649428 A CN 202311649428A CN 117359837 B CN117359837 B CN 117359837B
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- extrusion
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- stirring
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- 238000001125 extrusion Methods 0.000 title claims abstract description 188
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 71
- 239000004033 plastic Substances 0.000 claims abstract description 36
- 229920003023 plastic Polymers 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims description 39
- 238000007790 scraping Methods 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 14
- 239000011324 bead Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 210000003128 head Anatomy 0.000 description 13
- 230000010405 clearance mechanism Effects 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/042—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/08—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices shaking, oscillating or vibrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/16—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/802—Constructions or methods for cleaning the mixing or kneading device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the field of dental medical instruments, in particular to an extrusion device with an anti-blocking function for producing a dental gun head. The invention provides an extrusion device for producing a dental gun head, which can effectively prevent an extrusion nozzle from being blocked, improve extrusion production efficiency and improve extrusion effect and has an anti-blocking function. An extrusion device with anti-blocking function for dental gun head production comprises a support, an electric push rod and the like; and the upper side surface of the top of the support is fixedly connected with an electric push rod. The staff starts electric putter for the stirring board rotates and carries out the molten plastics that reciprocating pendulum can stir extrusion molding barrel bottom from top to bottom, thereby is convenient for molten plastics flow direction extrusion nozzle, and two elasticity scrape the ring and reciprocate the in-process throughout and laminate with extrusion nozzle inner wall from top to bottom, and elasticity scrape the ring and can strike off the plastics of adsorbing on extrusion nozzle inner wall, can prevent extrusion nozzle jam effectively, and then can improve extrusion molding production's efficiency.
Description
Technical Field
The invention relates to the field of dental medical instruments, in particular to an extrusion device with an anti-blocking function for producing a dental gun head.
Background
The three-purpose gun head is a cleaning tool for dental oral treatment, the conventional dental treatment often needs to use the three-purpose gun head, the nozzle rod needs to extend into the oral cavity of a patient when the three-purpose gun head is used, so that cross infection caused by the fact that microorganisms in the oral cavity of the patient are adhered to the gun head through spray is avoided, the aim of reducing the probability of cross infection can be achieved clinically by using the disposable gun head, and therefore the requirement of the gun head on the market is large.
The production extrusion device of current three-purpose rifle head is mostly all comparatively simple, and most all carry out the hot melt with plastics earlier by the staff, then the staff is poured hot melt plastics into the device and is extruded out and produce, can adhere more hot melt plastics on the rifle head in extrusion process, and the hot melt plastics of adhesion is easy to condense to make the rifle head jam easily, need the manual clearance of staff, thereby lead to production efficiency lower, and plastics adhesion together can lead to extrusion molding production's effect relatively poor.
Disclosure of Invention
In view of the above, the present invention provides an extrusion device for producing a dental tip with an anti-clogging function, which can effectively prevent clogging of an extrusion nozzle, improve extrusion productivity, and improve extrusion effect.
The technical scheme of the invention is as follows: the utility model provides a dental unit head production is with extrusion device with prevent blockking up function, includes support, electric putter, piston rod, extrusion barrel, bung, extrusion shower nozzle, rabbling mechanism and scrapes material mechanism, side fixedly connected with electric putter on the support top, fixedly connected with piston rod on the telescopic link of electric putter, piston rod lower extreme fixedly connected with extrusion barrel, it has the ripple groove to open on the extrusion barrel, the bung has been placed on the extrusion barrel, extrusion barrel bottom fixedly connected with extrusion shower nozzle, rabbling mechanism sets up on the extrusion barrel, scrape material mechanism setting on the extrusion barrel.
As a further preferred scheme, the stirring mechanism comprises a mounting block, a screw rod, stirring plates, clamping beads and nuts, wherein the mounting block is rotatably connected to the bottom in the extrusion molding barrel, the screw rod is fixedly connected to the top of the mounting block, the screw rod is slidably connected with a piston rod, four stirring plates are rotatably connected to the mounting block, each stirring plate is rotatably connected with the clamping beads, the clamping beads are slidably connected with a corrugated groove on the extrusion molding barrel, and the nuts are fixedly connected with the piston rod through threads.
As a further preferred scheme, scrape material mechanism including extrusion pole, vertical spring, six arriss poles, elasticity and scrape ring and horizontal spring, sliding connection has two extrusion poles on the extrusion barrel, two all be equipped with two stock and a quarter butt on the extrusion pole, two the extrusion pole is the symmetry setting, every be connected with two vertical springs between extrusion pole and the extrusion barrel, vertical spring cover is on the stock, two the extrusion pole bottom is all sliding connection has six arriss poles, two six arriss poles bottom is all fixedly connected with elasticity and scrapes the ring, elasticity is scraped the ring and is the rubber material, be connected with horizontal spring between six arriss poles and the elasticity and scrape the ring.
As still further preferred scheme, still including the clearance mechanism, the clearance mechanism sets up on one of them extrusion stem and the clearance mechanism is connected with the extrusion barrel, the clearance mechanism is including last wedge, lower wedge, reset spring, horizontal rack, horizontal gear and clear away the board, one of them fixedly connected with goes up the wedge on one of them stock of extrusion stem, extrusion barrel bottom slidingtype is connected with down the wedge, go up wedge and lower wedge can contact, be connected with reset spring between lower wedge and the extrusion barrel, lower wedge bottom fixedly connected with horizontal rack, the last rotation type of extrusion nozzle is connected with horizontal gear, horizontal gear and horizontal rack meshing, four of horizontal gear bottom fixedly connected with clear away the board, four clear away the board simultaneously with extrusion nozzle bottom contact.
As a further preferred scheme, the stirring mechanism is arranged on the extrusion rod and is connected with the extrusion barrel, the stirring mechanism comprises an extrusion ring, vertical racks, a mounting ring, stirring plates and vertical gears, the extrusion ring is fixedly connected with the short rods of the extrusion rod, six vertical racks are fixedly connected to the extrusion ring, the mounting ring is fixedly connected with the mounting ring, six stirring plates are rotatably connected to the mounting ring, and the vertical gears are fixedly connected to the stirring plates and meshed with the vertical racks.
As a further preferable scheme, the device further comprises a guide rod, a connecting rod and a dredging strip, wherein the bottom of the installation block is rotatably connected with the guide rod, the two extrusion rods are rotatably connected with the connecting rod, the connecting rod is sleeved with the guide rod, and the bottom of the connecting rod is fixedly connected with the dredging strip.
As a further preferable scheme, the cleaning device further comprises a collecting box, and the collecting box is fixedly connected between the four cleaning plates.
As a further preferred embodiment, the upper wedge is composed of a cross bar and a triangle fixedly connected to the cross bar.
As a further preferred embodiment, four of the cleaning plates are disposed at uniform intervals.
As a further preferred embodiment, each of the stirring plates is composed of a round bar and a turnover plate fixedly connected to the round bar.
The invention has the following advantages: 1. during the use, the staff starts electric putter, electric putter's telescopic link can extend, make the stirring board pivoted carry out reciprocating motion from top to bottom and can stir the molten plastics of extrusion molding barrel bottom, thereby prolong the time that molten plastics condenses effectively, and then can be convenient for molten plastics flow direction extrusion nozzle, the stirring board rotates the in-process, the stirring board can separate with the extrusion pole top, vertical spring can reset and drive the extrusion pole and upwards move, the stirring board continues to rotate and can contact with the extrusion pole top again, the stirring board can promote the extrusion pole and reciprocate in proper order, can make elasticity scrape ring reciprocating motion from top to bottom, elasticity scrape the ring in-process of reciprocating motion from top to bottom, under the elasticity effect of horizontal spring, two elasticity scrape the ring can be all the time with extrusion nozzle inner wall laminating, the stirring board stirs the molten plastics of extrusion molding barrel bottom and can scrape the plastics that adsorb on extrusion nozzle inner wall, can prevent extrusion nozzle jam effectively, and then can improve extrusion molding production's efficiency.
2. The upper wedge block can be driven to reciprocate up and down by the extrusion rod, when the upper wedge block moves upwards, the upper wedge block does not prop against the lower wedge block any more, the reset spring can reset and drive the lower wedge block to move towards the direction close to the upper wedge block, when the upper wedge block moves downwards, the upper wedge block can push the lower wedge block to reversely move and reset, the reset spring is compressed again and sequentially reciprocates, so that the cleaning plate can reciprocate to scrape plastics adhered to the bottom end of the extrusion nozzle, the extrusion nozzle can be further effectively prevented from being blocked, and the extrusion production efficiency can be further improved.
3. The extrusion rod moves downwards to enable the vertical gear to rotate, the vertical gear rotates to drive the stirring plate to rotate, the stirring plate rotates to stir molten plastics flowing to the extrusion nozzle in the extrusion barrel, and accordingly adhesion of the molten plastics can be further effectively prevented, and the extrusion molding effect can be improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic cross-sectional perspective view of the present invention.
FIG. 3 is a schematic perspective view, partially in section, of the purging mechanism of the present invention.
FIG. 4 is a schematic perspective view, partially in section, of the stirring mechanism of the present invention.
FIG. 5 is a schematic perspective view of the mounting block, stirring plate and clamping beads of the present invention.
Fig. 6 is a schematic view of a partially cut-away perspective structure of the scraping mechanism of the invention.
Fig. 7 is a schematic perspective view of the cleaning mechanism of the present invention.
Fig. 8 is a schematic view of a part of a scraping mechanism of the present invention.
FIG. 9 is a schematic perspective view, partially in section, of the stirring mechanism of the present invention.
Fig. 10 is an enlarged perspective view of fig. 9 a according to the present invention.
Wherein: 1-support, 2-electric push rod, 3-piston rod, 4-extrusion barrel, 5-barrel cover, 6-extrusion nozzle, 71-installation block, 72-screw rod, 73-stirring plate, 74-clamping bead, 75-nut, 81-extrusion rod, 82-vertical spring, 83-hexagonal rod, 84-elastic scraping ring, 85-horizontal spring, 91-upper wedge block, 92-lower wedge block, 93-reset spring, 94-horizontal rack, 95-horizontal gear, 96-cleaning plate, 97-stirring mechanism, 971-extrusion ring, 972-vertical rack, 973-installation ring, 974-stirring plate, 975-vertical gear, 101-guide rod, 102-connecting rod, 103-dredging strip, 11-collecting box.
Detailed Description
Standard parts used in the invention can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, and the specific connection modes of the parts adopt conventional means such as mature bolts, rivets, welding, pasting and the like in the prior art, and the detailed description is omitted.
Example 1: the utility model provides an extrusion device is used in production of dentistry rifle head with prevent blockking up function, as shown in fig. 1-10, including support 1, electric putter 2, piston rod 3, extrusion barrel 4, bung 5, extrusion shower nozzle 6, rabbling mechanism and scraping mechanism, there is electric putter 2 on the support 1 top side through bolted connection, there is piston rod 3 on the telescopic link of electric putter 2 through bolted connection, there is extrusion barrel 4 piston rod 3 lower extreme through bolted connection, it has the ripple groove to open on the extrusion barrel 4, bung 5 has been placed on the extrusion barrel 4, extrusion barrel 4 bottom has extrusion shower nozzle 6 through bolted connection, rabbling mechanism sets up on extrusion barrel 4, scraping mechanism sets up on extrusion barrel 4.
The stirring mechanism comprises a mounting block 71, a screw rod 72, stirring plates 73, clamping beads 74 and nuts 75, wherein the mounting block 71 is rotatably connected to the bottom in the extrusion molding barrel 4, the screw rod 72 is connected to the top of the mounting block 71 through bolts, the screw rod 72 is slidably connected with a piston rod 3, four stirring plates 73 are rotatably connected to the mounting block 71, each stirring plate 73 is rotatably connected with a clamping bead 74, the clamping beads 74 are slidably connected with a corrugated groove on the extrusion molding barrel 4, the nuts 75 are connected to the screw rod 72 through threads, and the nuts 75 are connected with the piston rod 3 through bolts.
The scraping mechanism comprises an extrusion rod 81, vertical springs 82, six-edge rods 83, elastic scraping rings 84 and horizontal springs 85, wherein two extrusion rods 81 are connected to the extrusion barrel 4 in a sliding mode, two long rods and a short rod are arranged on the extrusion rods 81, the extrusion rods 81 are symmetrically arranged, two vertical springs 82 are connected between the extrusion rods 81 and the extrusion barrel 4 through hooks, the vertical springs 82 are sleeved on the long rods, the two bottom ends of the extrusion rods 81 are connected with six-edge rods 83 in a sliding mode, the bottoms of the six-edge rods 83 are connected with the elastic scraping rings 84 through bolts, the elastic scraping rings 84 are made of rubber, and the horizontal springs 85 are connected between the six-edge rods 83 and the elastic scraping rings 84 through hooks.
Initially, the stirring plate 73 presses the extrusion rod 81, the vertical spring 82 is compressed, the bottom end of the extrusion nozzle 6 presses the two elastic scraping rings 84, the horizontal spring 85 is in a compressed state, so that the two elastic scraping rings 84 are attached to the inner wall of the bottom of the extrusion nozzle 6, when the extrusion nozzle is used, a worker opens the barrel cover 5 to pour molten plastic into the extrusion barrel 4 and starts the electric push rod 2, the telescopic rod of the electric push rod 2 stretches to drive the piston rod 3 to move downwards, the piston rod 3 moves downwards to push the molten plastic in the extrusion barrel 4 to the extrusion nozzle 6, the piston rod 3 moves downwards to drive the nut 75 to move downwards, the nut 75 moves downwards to enable the screw rod 72 to rotate, the screw rod 72 rotates to drive the mounting block 71 to rotate, the stirring plate 73 rotates to drive the clamping beads 74 to rotate and move up and down along the corrugated grooves on the extrusion barrel 4, the clamping beads 74 rotate and reciprocate up and down along the corrugated grooves on the extrusion barrel 4 to enable the stirring plate 73 to rotate and reciprocate up and down, the stirring plate 73 rotates and reciprocate up and down to stir molten plastics at the bottom of the extrusion barrel 4, so that the condensation time of the molten plastics is effectively prolonged, the molten plastics can flow to the extrusion nozzle 6 conveniently, in the rotating process of the stirring plate 73, the stirring plate 73 can be separated from the top of the extrusion rod 81, the vertical spring 82 can reset and drive the extrusion rod 81 to move up, the stirring plate 73 continuously rotates to be contacted with the top of the extrusion rod 81 again, the stirring plate 73 can push the extrusion rod 81 to move down and reciprocate in sequence, the extrusion rod 81 can reciprocate up and down, the extrusion rod 81 reciprocates up and down to drive the six-edge rod 83 to reciprocate up and down, six arris pole 83 reciprocate from top to bottom and can drive elasticity and scrape ring 84 reciprocating motion from top to bottom, elasticity is scraped ring 84 and is in the in-process of reciprocating motion from top to bottom, under the elasticity effect of horizontal spring 85, two elasticity scrape ring 84 can all the time with extrusion nozzle 6 inner wall laminating, after the end of use, staff adjustment electric putter 2, electric putter 2's telescopic link can shrink, electric putter 2's telescopic link shrink can drive piston rod 3 and reciprocate, piston rod 3 upwards moves the reset and can drive nut 75 and reset, nut 75 resets and can drive lead screw 72 reverse rotation, lead screw 72 reverse rotation can drive installation piece 71 and stirring plate 73 reverse rotation, stirring plate 73 reverse rotation can drive card pearl 74 reverse rotation and follow the ripple groove on extrusion nozzle 4 and reciprocate from top to bottom, can make stirring plate 73 reverse rotation, stirring plate 73 reverse rotation carries out reciprocal motion from top to bottom, reciprocal motion again can stir the molten plastics of extrusion nozzle 4 bottom, under the effect of vertical spring 82 elastic force, extrusion rod 81 can drive the extrusion nozzle 84 and can stop reciprocating motion from top to bottom along the ripple groove on extrusion nozzle 4, thereby can prevent that extrusion nozzle 6 from reciprocating motion from top to bottom, and stirring ring 73 can stop the extrusion nozzle 6 from top to bottom, and stirring rod 84 can stop the extrusion nozzle 6 and can be reached when the extrusion nozzle 75 moves down.
Example 2: on the basis of embodiment 1, as shown in fig. 3 and 6-9, the device further comprises a clearing mechanism, the clearing mechanism is arranged on one extrusion rod 81 and is connected with the extrusion barrel 4, the clearing mechanism comprises an upper wedge block 91, a lower wedge block 92, a reset spring 93, a horizontal rack 94, a horizontal gear 95 and clearing plates 96, one long rod of the extrusion rod 81 is connected with the upper wedge block 91 through bolts, the upper wedge block 91 is composed of a cross rod and triangular blocks fixedly connected to a cross plate, the bottom of the extrusion barrel 4 is connected with the lower wedge block 92 in a sliding mode, the upper wedge block 91 and the lower wedge block 92 are in contact, the reset spring 93 is connected between the lower wedge block 92 and the extrusion barrel 4 through a hook, the bottom end of the lower wedge block 92 is connected with the horizontal rack 94 through bolts, the extrusion nozzle 6 is rotatably connected with the horizontal gear 95, the bottom of the horizontal gear 95 is meshed with the horizontal rack 94, four clearing plates 96 are connected with the bottom of the horizontal gear 95 through rivets, and the four clearing plates 96 are uniformly arranged at intervals, and the bottom of the extrusion nozzle 6 is contacted with the bottom of the extrusion nozzle 96.
Initially, the upper wedge 91 is pressed against the lower wedge 92, the reset spring 93 is compressed, the extrusion rod 81 reciprocates up and down to drive the upper wedge 91 to reciprocate up and down, when the upper wedge 91 moves up, the upper wedge 91 does not abut against the lower wedge 92 any more, the reset spring 93 resets and drives the lower wedge 92 to move towards the direction close to the upper wedge 91, when the upper wedge 91 moves down, the upper wedge 91 pushes the lower wedge 92 to reversely move and reset, the reset spring 93 is compressed again and sequentially reciprocates, the lower wedge 92 horizontally reciprocates to drive the horizontal rack 94 to horizontally reciprocate, the horizontal rack 94 horizontally reciprocates to drive the horizontal gear 95 to reciprocate, the horizontal gear 95 reciprocates to drive the cleaning plate 96 to reciprocate, and the cleaning plate 96 reciprocates to scrape plastics adhered to the bottom end of the extrusion nozzle 6, so that the extrusion nozzle 6 can be further effectively prevented from being blocked, and the extrusion production efficiency can be further improved.
Example 3: on the basis of embodiment 2, as shown in fig. 9 and 10, the stirring mechanism 97 is further included, the stirring mechanism 97 is arranged on the extrusion rod 81 and is connected with the extrusion barrel 4, the stirring mechanism 97 comprises an extrusion ring 971, vertical racks 972, a mounting ring 973, stirring plates 974 and vertical gears 975, the extrusion ring 971 is connected between short rods of the extrusion rod 81 through bolts, six vertical racks 972 are connected on the extrusion ring 971 through bolts, the mounting ring 973 is connected on the extrusion barrel 4 through bolts, six stirring plates 974 are rotatably connected on the mounting ring 973, each stirring plate 974 consists of a round rod and a turnover plate fixedly connected on the round rod, and the six stirring plates 974 are connected with the vertical gears 975 through flat keys and meshed with the vertical racks 972.
The extrusion rod 81 moves downwards to drive the extrusion ring 971 to move downwards, the extrusion ring 971 moves downwards to drive the vertical rack 972 to move downwards, the vertical rack 972 moves downwards to enable the vertical gear 975 to rotate, the vertical gear 975 rotates to drive the stirring plate 974 to rotate, the stirring plate 974 rotates to stir molten plastics flowing to the extrusion nozzle 6 in the extrusion barrel 4, and accordingly molten plastics adhesion can be further effectively prevented, and the extrusion effect can be improved.
Example 4: on the basis of embodiment 3, as shown in fig. 9, the device further comprises a guide rod 101, a connecting rod 102 and a dredging strip 103, wherein the bottom of the mounting block 71 is rotatably connected with the guide rod 101, the connecting rod 102 is rotatably connected between the two extrusion rods 81, the connecting rod 102 is sleeved with the guide rod 101, and the bottom of the connecting rod 102 is connected with the dredging strip 103 through a bolt.
The installation piece 71 rotates and can drive the guide bar 101 to rotate, the guide bar 101 rotates and can drive the connecting rod 102 to rotate, the connecting rod 102 rotates and can drive the dredging strip 103 to rotate, the extruding rod 81 reciprocates up and down and can drive the connecting rod 102 to reciprocate up and down while rotating, the connecting rod 102 reciprocates up and down while rotating can drive the dredging strip 103 to rotate and reciprocate up and down, the dredging strip 103 rotates and reciprocates up and down and can agitate molten plastics in the extruding nozzle 6, thereby being capable of further effectively preventing the adhesion of the molten plastics, and further being capable of further improving the extrusion molding effect.
Example 5: on the basis of embodiment 4, as shown in fig. 3 and 9, a collecting box 11 is further included, and four cleaning plates 96 are connected with the collecting box 11 through bolts.
The collecting box 11 is convenient for collecting the coagulated molten plastic scraped off by the cleaning plate 96, so that the blockage of the extrusion nozzle 6 can be prevented more effectively, and the efficiency of extrusion production can be further improved.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. Extrusion device is used in production of dental rifle head with prevent blockking up function, its characterized in that: the automatic plastic extruding device comprises a support (1), an electric push rod (2), a piston rod (3), a plastic extruding barrel (4), a barrel cover (5), an extrusion spray head (6), a stirring mechanism and a scraping mechanism, wherein the electric push rod (2) is fixedly connected to the upper side surface of the top of the support (1), the piston rod (3) is fixedly connected to a telescopic rod of the electric push rod (2), the plastic extruding barrel (4) is fixedly connected to the lower end of the piston rod (3), a corrugated groove is formed in the plastic extruding barrel (4), the barrel cover (5) is placed on the plastic extruding barrel (4), the extrusion spray head (6) is fixedly connected to the bottom of the plastic extruding barrel (4), and the stirring mechanism is arranged on the plastic extruding barrel (4) and the scraping mechanism is arranged on the plastic extruding barrel (4);
the stirring mechanism comprises a mounting block (71), a screw rod (72), stirring plates (73), clamping beads (74) and nuts (75), wherein the mounting block (71) is rotatably connected to the inner bottom of the extrusion molding barrel (4), the screw rod (72) is fixedly connected to the top of the mounting block (71), the screw rod (72) is slidably connected with a piston rod (3), four stirring plates (73) are rotatably connected to the mounting block (71), each stirring plate (73) is rotatably connected with the clamping beads (74), the clamping beads (74) are slidably connected with corrugated grooves on the extrusion molding barrel (4), and the nuts (75) are fixedly connected with the piston rod (3) through threads;
the scraping mechanism comprises extrusion rods (81), vertical springs (82), six-edge rods (83), elastic scraping rings (84) and horizontal springs (85), wherein two extrusion rods (81) are connected to the extrusion barrel (4) in a sliding mode, two long rods and a short rod are arranged on the extrusion rods (81), the two extrusion rods (81) are symmetrically arranged, two vertical springs (82) are connected between each extrusion rod (81) and the extrusion barrel (4), the vertical springs (82) are sleeved on the long rods, the six-edge rods (83) are connected to the bottom ends of the extrusion rods (81) in a sliding mode, the elastic scraping rings (84) are fixedly connected to the bottoms of the six-edge rods (83), the elastic scraping rings (84) are made of rubber, and the horizontal springs (85) are connected between the six-edge rods (83) and the elastic scraping rings (84);
the stirring mechanism (97) is arranged on the extrusion rod (81) and is connected with the extrusion barrel (4), the stirring mechanism (97) comprises an extrusion ring (971), vertical racks (972), a mounting ring (973), stirring plates (974) and vertical gears (975), the extrusion ring (971) is fixedly connected between short rods of the extrusion rod (81), six vertical racks (972) are fixedly connected on the extrusion ring (971), the mounting ring (973) is fixedly connected with the extrusion barrel (4), six stirring plates (974) are rotatably connected on the mounting ring (973), the vertical gears (975) are fixedly connected on the stirring plates (974), and the vertical gears (975) are meshed with the vertical racks (972);
still including guide bar (101), connecting rod (102) and mediation strip (103), installation piece (71) bottom rotation is connected with guide bar (101), two rotation is connected with connecting rod (102) between extrusion rod (81), connecting rod (102) cup joint with guide bar (101), connecting rod (102) bottom fixedly connected with mediation strip (103).
2. The extrusion device for producing dental tips with anti-clogging function as claimed in claim 1, wherein: still including clear away the mechanism, clear away the mechanism setting and be connected on one of them extrusion stem (81) and clear away mechanism and extrusion barrel (4), clear away the mechanism including last wedge (91), lower wedge (92), reset spring (93), horizontal rack (94), horizontal gear (95) and clear away board (96), one of them fixedly connected with goes up wedge (91) on one of them stock of extrusion stem (81), extrusion barrel (4) bottom slidingtype connection has lower wedge (92), go up wedge (91) and lower wedge (92) can contact, be connected with reset spring (93) between lower wedge (92) and extrusion barrel (4), lower wedge (92) bottom fixedly connected with horizontal rack (94), rotation type is connected with horizontal gear (95) on extrusion shower nozzle (6), horizontal gear (95) and horizontal rack (94) mesh, four clear away board (96) bottom fixedly connected with four with extrusion nozzle (6) bottom simultaneously.
3. The extrusion device for producing dental tips with anti-clogging function as claimed in claim 2, wherein: the cleaning device also comprises a collecting box (11), and the collecting box (11) is fixedly connected between the four cleaning plates (96).
4. The extrusion device for producing dental tips with anti-clogging function as claimed in claim 2, wherein: the upper wedge block (91) is composed of a cross rod and a triangular block fixedly connected to the cross rod.
5. The extrusion device for producing dental tips with anti-clogging function as claimed in claim 2, wherein: four of the cleaning plates (96) are arranged at uniform intervals.
6. The extrusion device for producing dental tips with anti-clogging function as claimed in claim 1, wherein: each stirring plate (974) consists of a round rod and a turnover plate fixedly connected to the round rod.
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| CN202311649428.4A CN117359837B (en) | 2023-12-05 | 2023-12-05 | Extrusion device with anti-blocking function for dental gun head production |
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| CN117359837B true CN117359837B (en) | 2024-01-30 |
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