CN214872331U - Multi-cavity penholder rotating thread-removing die - Google Patents

Abstract

The utility model discloses a multi-cavity penholder rotation thread-removing mould, which solves the problems of low production efficiency of penholders, poor forming of side observation windows of the penholders and poor quality of formed penholders in the prior art, and comprises a fixed mould, a movable mould and a driving piece, wherein the core is set into a half core structure, and a side protrusion is arranged in the cavity to form the side observation windows of the penholders, meanwhile, a plurality of cavities are arranged on the half core to be matched with a third core, so as to synchronously process a plurality of penholders, and the driving piece drives the rotating cores in the third cores to synchronously rotate, thereby realizing automatic demoulding of a plurality of formed penholders, further greatly improving the production efficiency of the penholders, and in order to ensure the wall thickness uniformity of the penholders, the lower ends of the fixed cores are inserted in the rotating cores, the rotating cores are positioned, and both sides are simultaneously poured, to ensure that the forces applied to the rotating core are symmetrical and to avoid shifting of the rotating core.

Description

Multi-cavity penholder rotating thread-removing die

Technical Field

The utility model relates to a pen-holder mold processing's technical field refers in particular to a many die cavities pen-holder rotates takes off screw thread mould.

Background

The penholder is an important component part of the pen, the demand of the existing pen is more and more large, in order to meet the huge market demand, two methods are adopted, the penholder is recycled, the manufacturing scale of the penholder is enlarged, the recycling efficiency is low, the situations of more loss and damage exist, in the prior art, the penholder is generally processed and produced in batches through a specific mold, and the penholder is more convenient to compare with other production modes and has higher efficiency.

But still there is more problem, only has a die cavity on the current mould, and a pen-holder can only be processed to a certain time span, and its mould quantity that needs is great, and the cost is higher, and adopts a plurality of die cavities then can't realize the automatic drawing of patterns of a plurality of shaping pen-holders, and in the current mould, because pen-holder length is longer, the core in the die cavity receives the impact of material flow easily to lead to the deviation of core, and then lead to the wall thickness of pen-holder inhomogeneous.

Disclosure of Invention

The utility model discloses having considered aforementioned problem and having made, utility model's purpose provides a thread mould is taken off in rotation of multi-cavity pen-holder, realizes multi-cavity processing pen-holder, has improved the machining efficiency of pen-holder, has guaranteed the homogeneity of pen-holder wall thickness simultaneously.

In order to achieve the above object, the utility model provides a many die cavities pen-holder rotates takes off screw thread mould, include:

the fixed die is provided with a left half core and a right half core, the left half core is attached to the left side of the right half core, a plurality of cavities are formed between the right half core and the left half core, a pouring gate is arranged on the fixed die and communicated with the cavities, and the inner wall of each cavity is provided with a side protrusion;

the movable mould is arranged below the fixed mould, a plurality of third cores extending into the cavity are arranged on the movable mould, each third core comprises a fixed core and a rotating core, and the upper end of the fixed core is connected with the fixed mould; the lower end of the fixed core is arranged in the cavity and inserted into the upper end of the rotary core;

the driving assembly is arranged on the movable die and used for driving the plurality of rotary cores to synchronously rotate;

the rotary core is a threaded core, the two opposite sides of the fixed core are provided with a feeding channel communicated with the cavity and the pouring gate, and the upper end of the rotary core is movably sleeved on the outer side of the lower end of the fixed core.

According to last a many die cavities pen-holder rotate and take off screw thread mould, the cover half below is equipped with into waters the board, it is in to water the board laminating in a left side haversian core and the right side haversian core upside, just it is equipped with the intercommunication to advance on watering the board advance water with the runner advances waters the runner, the upper end of fixed core with advance and water board fixed connection.

According to a many die cavities pen-holder rotate and take off screw thread mould, left side haver core with the outside of right side haver core all is equipped with the slider, slider one side with the cover half laminating, the opposite side with left side haver core or right side haver core meets, just the upside of slider is equipped with elastic connection spare, elastic connection spare one end with the slider meets, the other end with the cover half meets.

According to the multi-cavity penholder rotating thread-removing die, assembly positioning adjusting blocks are arranged between the sliding block positioned on the outer side of the left half core, the left half core and the sliding block positioned on the outer side of the right half core, and the right half core.

According to the multi-cavity penholder rotary thread-removing die, the elastic connecting piece is a polyurethane spring.

According to the multi-cavity penholder rotating thread-removing die, the fixed die is provided with the reverse locking structure, and the reverse locking structure is inserted into the movable die.

According to a many die cavities pen-holder rotate and take off screw thread mould, a left side haver core with all be equipped with a plurality of cooling flow channel on the right side haver core, it is a plurality of cooling flow channel sets up the outside of die cavity, be the cavity form in the rotation die core, just be equipped with the spray tube in the rotation die core.

According to the multi-cavity pen holder rotating thread-removing die, the left half core and the right half core surround to form a positioning groove, and a fine positioning rod is arranged in the positioning groove.

According to the multi-cavity penholder rotating and thread-removing die, the driving assembly comprises a driving shaft, a driving gear arranged on the driving shaft, a plurality of transmission gears and a plurality of driven gears arranged at the lower end of the rotating core; the plurality of transmission gears are arranged between the driving gear and the driven gear and are used for synchronously transmitting the torque of the driving gear to the plurality of driven gears.

According to the multi-cavity penholder rotating thread-removing die, 12 cavities are formed in the third cores, the third cores correspond to the cavities one to one, and the distance between the side edge of each rotating core and the inner wall of each cavity is equal.

The utility model discloses following beneficial effect has:

1. the left half core and the right half core surround to form a plurality of cavities, a third core is arranged in each cavity, the third core comprises a fixed core and a rotating core, a plurality of pen holders can be processed at the same time, and the driving assembly can drive the plurality of rotating cores to rotate at the same time, so that synchronous demolding of the plurality of formed pen holders can be realized, and the processing efficiency of the pen holders can be greatly improved;

2. the two-point submerged pouring can be realized by simultaneously pouring from the two opposite sides of the fixed mold core, so that the balance of molding flow can be ensured, the uniform stress on the two sides of the rotating mold core is further ensured, the left and right offset of the rotating mold core is prevented, and the appearance of a product is ensured to have no sprue mark;

3. the lower end of the fixed core is inserted into the upper end of the rotary core, so that the concentricity of the fixed core and the rotary core can be ensured, the slender rotary core can provide a positioning effect, the phenomenon that the material flow is inclined to be flushed is avoided, and the condition that the wall thickness of a product is uneven is avoided;

4. by adopting a half core structure, the pouring gate can be completely arranged from top to bottom, and the side bulge is arranged in the cavity, so that the molding of a side observation window on the pen holder can be realized;

5. a cooling flow channel is arranged on the half core structure at the outer side of the cavity, and a spray pipe is arranged in the rotary core, so that double cooling can be performed, and the cooling effect is good;

6. a fine positioning rod is adopted between the left half mold core and the right half mold core for positioning, so that the mold closing precision can be ensured;

7. the sliding block and the fixed die are elastically connected by the polyurethane spring, so that when the die is opened, the bonding part of the sprue can be broken firstly due to the existence of the elastic range, and then the half-shaped core is opened, so that the product quality is ensured.

Drawings

FIG. 1 is an appearance diagram of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic view of the assembly structure of the left half core, the right half core and the slide block of the present invention;

FIG. 4 is a schematic view of the fixed core structure of the present invention;

FIG. 5 is a schematic view of the inner structure of the left half core of the present invention;

FIG. 6 is a schematic view of the fixed mold structure of the present invention;

fig. 7 is a schematic structural diagram of the driving assembly of the present invention.

In the figure: 100. fixing a mold; 110. a left half mold core; 120. a right half mold core; 130. A cavity; 131. a scoliosis; 140. a gate; 150. pouring a plate; 160. a slider; 161. Assembling a positioning adjusting block; 162. a polyurethane spring; 170. a reverse locking structure; 180. A cooling flow channel; 190. positioning a groove; 191. a fine positioning rod; 200. moving the mold; 210. a third core; 211. fixing a mold core; 211a, a feeding channel; 212. rotating the mold core; 212a, a nozzle; 300. a drive assembly; 310. a drive shaft; 320. a driving gear; 330. a transmission gear; 340. a driven gear.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 7, a multi-cavity barrel rotation thread-removing mold includes:

the fixed die 100 is provided with a left half core 110 and a right half core 120 on the fixed die 100, the left half core 110 is attached to the left side of the right half core 120, a plurality of cavities 130 are arranged between the right half core 120 and the left half core 110, a gate 140 on the fixed die 100 is communicated with the cavities 130, and the inner wall of the cavity 130 is provided with a side projection 131. due to the fact that the left half core 110 and the right half core 120 are arranged left and right, the cavities 130 are vertically arranged, a pouring gate of the whole device can also be arranged from top to bottom, after materials enter the cavities 130, the side projection 131 position of the device can form a side observation window of a pen holder, wherein the left half core 110 and the right half core 120 are both positioned below the fixed die 100.

The movable mold 200, the movable mold 200 is set up under the stationary mold 100, there are multiple third cores 210 stretching into the die cavity 130 on the movable mold 200, each third core 210 includes fixed core 211 and rotating core 212, the upper end of the fixed core 211 meets with stationary mold 100; the lower extreme of fixed core 211 sets up in die cavity 130, and insert and establish in the upper end of rotating core 212, when the compound die state, the upper end of rotating core 212 stretches into in the die cavity 130, and rotatable cover is established at the lower extreme of fixed core 211, be equipped with the interval between rotating core 212 and the die cavity 130 inner wall, except the side of die cavity 130 inner wall department of protruding 131, its interval equals, the pen-holder wall thickness that produces is even, the position of fixed core 211 is fixed, it can provide the positioning action of horizontal direction for rotating core 212, produce when avoiding rotating core 212 to receive the material stream and strike and shift from left and right, and then guarantee that the wall thickness of pen-holder is even.

In this embodiment, in order to further prevent the left and right offset of the rotating core 212, the two opposite sides of the fixed core 211 are provided with the sprue 211a communicating the cavity 130 and the gate 140, and the two sides are simultaneously poured, so that the two opposite sides of the rotating core 212 are simultaneously impacted, compared with single-side impact, the stability is better, and meanwhile, the fixed core 211 is poured from the inside, so that the appearance of the product is ensured to have no gate mark.

The rotary core 212 is a screw core, so that when the rotary core 212 rotates, the rotary core can be disengaged from the screw thread engagement with the formed pen holder, and the automatic demolding of the pen holder is realized.

The driving assembly 300 is arranged on the movable mold 200 and used for driving the plurality of rotary cores 212 to synchronously rotate, so that synchronous demolding of the plurality of formed penholders can be realized.

In this embodiment, the number of the cavities 130 and the number of the third cores 210 are 12, and the third cores 210 correspond to the cavities 130 one by one, that is, one third core 210 is provided in each cavity 130, that is, one mold can process 12 pen holders simultaneously, and automatically demold the 12 pen holders, so that the production efficiency of the pen holders can be greatly improved.

The lower part of the fixed die 100 is provided with a pouring plate 150, the pouring plate 150 is attached to the upper sides of the left half core 110 and the right half core 120, a pouring channel communicated with a pouring gate 211a and a pouring gate 140 is formed in the pouring plate 150, the upper end of the fixed core 211 is fixedly connected with the pouring plate 150, the feeding pouring channel is arranged on the pouring plate 150, so that materials entering from the pouring gate 140 are conveyed into the pouring gate 211a and then conveyed into the cavity 130 through the pouring gate 211a, and the fixed core 211 is fixed through the pouring plate 150 and detachably connected with the fixed core.

The outer sides of the left half core 110 and the right half core 120 are respectively provided with a slide block 160, one side of the slide block 160 is jointed with the fixed die 100, the other side of the slide block 160 is jointed with the left half core 110 or the right half core 120, the upper side of the slide block 160 is provided with an elastic connecting piece, one end of the elastic connecting piece is connected with the slide block 160, the other end of the elastic connecting piece is connected with the fixed die 100, when the die is closed, the slide block 160 is used for being butted with the left half core 110 and the right half core 120, so that the left half core 110 is tightly jointed with the right half core 120, the tightness of the die closing is ensured, and the elastic connecting piece is in a compression state, when the die is opened, the elastic connecting piece can be firstly extended, at the moment, the slide block 160 keeps unchanged in position, the bonding part of the sprue 140 can be torn off, the slide block continues to move, the elastic connecting piece can drive the slide block 160 to move, the left half core 110 and the right half core 120 can be opened, and realize the delayed slide-out effect, the appearance performance of the product is ensured.

In the present embodiment, the elastic connection member is a polyurethane spring 162, but of course, other elastic connection members may be selected without departing from the scope of the present application.

And assembly positioning adjusting blocks 161 are respectively arranged between the sliding block 160 positioned on the outer side of the left half core 110 and between the sliding block 160 positioned on the outer side of the right half core 120 and the right half core 120, so that the positions of the left half core 110 and the right half core 120 can be conveniently adjusted.

The fixed die 100 is provided with the reverse locking structure 170, the reverse locking structure 170 is inserted into the movable die 200, and during injection molding, the left half core 110 and the right half core 120 are ensured not to cause obvious half parting lines of products due to die expanding force.

All be equipped with a plurality of cooling flow channels 180 on left half core 110 and the right half core 120, a plurality of cooling flow channels 180 set up the outside at die cavity 130, be the cavity form in the rotation core 212, and be equipped with spray tube 212a in the rotation core 212, in the product forming process, a plurality of cooling flow channels 180 carry out the first heavy cooling in the outside to a plurality of die cavities 130, spray tube 212a water spray in the rotation core 212, carry out the second heavy cooling from the die cavity 130 inboard, can increase its cooling effect, guarantee that the pen-holder shaping outward appearance does not contract and holds back.

The left half core 110 and the right half core 120 surround to form a positioning groove 190, and a precise positioning rod 191 is arranged in the positioning groove 190 to ensure high-precision die assembly.

The driving assembly 300 includes a driving shaft 310, a driving gear 320 provided on the driving shaft 310, a plurality of driving gears 330, and a plurality of driven gears 340 provided at the lower end of the rotary core 212; the plurality of transmission gears 330 are arranged between the driving gear 320 and the driven gear 340 and are used for synchronously transmitting the torque of the driving gear 320 to the plurality of driven gears 340, wherein the transmission gears 330 comprise a first-stage transmission gear, a second-stage transmission gear and a third-stage transmission gear, one side of the first-stage transmission gear is meshed with the driving gear, the other side of the first-stage transmission gear is meshed with the two driven gears, one side of the second-stage transmission gear is meshed with the two driven gears, two sides of the third-stage transmission gear are respectively connected with the adjacent first-stage transmission gear and the second-stage transmission gear or the two adjacent second-stage transmission gears, the driving gear drives the first-stage transmission gear to rotate, the first-stage transmission gear drives the two driven gears and the third-stage transmission gear to rotate, the synchronous rotation of the plurality of transmission gears 330 is realized, and then the synchronous rotation of the plurality of rotating cores 212 is realized, and further realize the synchronous demoulding of the formed penholder.

The utility model provides a pair of thread mould is taken off in rotation of multicavity die cavity pen-holder, through setting up the core into hafu die core structure, and set up the side protrusion in the die cavity, in order to form the side observation window of pen-holder, set up a plurality of die cavities and the cooperation of third core simultaneously on the hafu core, in order to process a plurality of pen-holders in step, and rotate in step through the rotation core that drive assembly drove in a plurality of third cores, realize the automatic drawing of patterns of a plurality of shaping pen-holders, and then very big improvement the production efficiency of pen-holder, and in order to guarantee the wall thickness homogeneity of pen-holder, insert the fixed core lower extreme and establish in rotating the die core, rotating the core is fixed a position, and adopt both sides to advance simultaneously to water, in order to guarantee to apply the power symmetry of rotating the core, avoid rotating the core skew.

The technical solutions of the present invention have been described in detail with reference to the accompanying drawings, and the described embodiments are used to help understand the ideas of the present invention. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the claims.

Claims (10)

1. The utility model provides a many die cavities pen-holder rotates takes off screw thread mould which characterized in that includes:

the fixed die is provided with a left half core and a right half core, the left half core is attached to the left side of the right half core, a plurality of cavities are formed between the right half core and the left half core, a pouring gate is arranged on the fixed die and communicated with the cavities, and the inner wall of each cavity is provided with a side protrusion;

the movable mould is arranged below the fixed mould, a plurality of third cores extending into the cavity are arranged on the movable mould, each third core comprises a fixed core and a rotating core, and the upper end of the fixed core is connected with the fixed mould; the lower end of the fixed core is arranged in the cavity and inserted into the upper end of the rotary core;

the driving assembly is arranged on the movable die and used for driving the plurality of rotary cores to synchronously rotate;

the rotary core is a threaded core, the two opposite sides of the fixed core are provided with a feeding channel communicated with the cavity and the pouring gate, and the upper end of the rotary core is movably sleeved on the outer side of the lower end of the fixed core.

2. The multi-cavity penholder rotating thread-removing mold as claimed in claim 1, wherein a pouring plate is arranged below the fixed mold, the pouring plate is attached to the upper sides of the left half core and the right half core, a pouring channel for communicating the pouring gate with the sprue is arranged on the pouring plate, and the upper end of the fixed core is fixedly connected with the pouring plate.

3. The multi-cavity penholder rotary thread-removing mold as claimed in claim 1, wherein sliding blocks are arranged on the outer sides of the left half core and the right half core, one side of each sliding block is attached to the fixed mold, the other side of each sliding block is connected with the left half core or the right half core, an elastic connecting piece is arranged on the upper side of each sliding block, one end of each elastic connecting piece is connected with the corresponding sliding block, and the other end of each elastic connecting piece is connected with the corresponding fixed mold.

4. The multi-cavity penholder rotary unscrewing mold as claimed in claim 3, wherein fitting positioning adjusting blocks are provided between the slide block located on the outer side of the left half core and the left half core, and between the slide block located on the outer side of the right half core and the right half core.

5. A multi-cavity barrel rotation unscrewing mold as defined in claim 3, wherein said resilient connecting member is provided as a polyurethane spring.

6. The multi-cavity penholder rotary unscrewing mold as claimed in claim 3, wherein the fixed mold is provided with a reverse locking structure, and the reverse locking structure is inserted into the movable mold.

7. The multi-cavity penholder rotary unscrewing mold as claimed in claim 1, wherein a plurality of cooling channels are provided on each of the left and right half cores, the plurality of cooling channels are provided outside the cavity, the rotary core is hollow, and a nozzle is provided in the rotary core.

8. The multi-cavity penholder rotary thread-removing mold as claimed in claim 1 or 6, wherein the left half core and the right half core surround to form a positioning groove, and a fine positioning rod is arranged in the positioning groove.

9. The multi-cavity penholder rotary unscrewing mold as claimed in claim 1, wherein the driving assembly comprises a driving shaft, a driving gear provided on the driving shaft, a plurality of driving gears, and a plurality of driven gears provided at a lower end of the rotary core; the plurality of transmission gears are arranged between the driving gear and the driven gear and are used for synchronously transmitting the torque of the driving gear to the plurality of driven gears.

10. The multi-cavity penholder rotary unscrewing mold as claimed in claim 1, wherein the number of the cavities and the number of the third cores are 12, the third cores correspond to the cavities one to one, and the distances between the side edges of the rotary cores and the inner walls of the cavities are equal.

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