CN217395449U

CN217395449U - Better shedder of demoulding effect

Info

Publication number: CN217395449U
Application number: CN202123427606.8U
Authority: CN
Inventors: 詹玉棋
Original assignee: Hubei Quanxingtong Pipe Industry Co ltd
Current assignee: Hubei Quanxingtong Pipe Industry Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-09-09
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a shedder that demoulding effect is better, including fixed mould and movable mould, the die cavity has been seted up in the fixed mould, the liftout plate has been cup jointed in the sealed slip of die cavity, two lateral walls that the movable mould is relative have all welded first rack, two cavitys have been seted up in the movable mould, sealed sliding connection has the sliding plate in the cavity, the fixed mould runs through the bearing and rotates and be connected with a screw thread section of thick bamboo, screw thread section of thick bamboo one end runs through along to the fixed mould outside, and the other end runs through along extremely corresponding in the cavity, the screw thread section of thick bamboo is located the outside one end interference fit of fixed mould and has first gear, first gear and the first rack toothing who corresponds, screw thread section of thick bamboo threaded connection has the threaded rod. The utility model discloses can carry out the drawing of patterns simultaneously automatically at the die sinking, avoid the great intensity of labour of manual demoulding, and the drawing of patterns in-process, can have better drawing of patterns effect.

Description

Better shedder of drawing of patterns effect

Technical Field

The utility model relates to a shedder technical field especially relates to a better shedder of drawing of patterns effect.

Background

The plastic product is one of common products in our lives, and the production modes of the plastic product are various, such as injection molding, blow molding, extrusion and the like, wherein the injection molding is to inject a molten raw material into a cavity of a mold, and the raw material is cooled and shaped to be away from the shape of the cavity, so that the production is completed, the mold is opened after the cooling and shaping, and the injection molded product needs to be demolded after the mold is opened.

Among the prior art, current drawing of patterns mode often is artifical and moves the product through the crowbar, and step-by-step waste time and energy, and the drawing of patterns in-process, the crowbar can injure the product surface to lead to the drawing of patterns effect poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a demoulding device with better demoulding effect.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a shedder that demoulding effect is better, includes fixed mould and movable mould, set up the die cavity in the fixed mould, the sealed slip of die cavity has cup jointed the liftout plate, two lateral walls that movable mould is relative all have welded first rack, set up two cavities in the movable mould, sealed sliding connection has the sliding plate in the cavity, the fixed mould runs through the bearing and rotates and be connected with the screw thread section of thick bamboo, screw thread section of thick bamboo one end runs through along to the fixed mould outside, and the other end runs through along to corresponding in the cavity, the screw thread section of thick bamboo is located the outside one end interference fit of fixed mould has first gear, first gear and the first rack toothing that corresponds, screw thread section of thick bamboo threaded connection has the threaded rod, the threaded rod is located the correspondence one end in the cavity with the welding of sliding plate lateral wall, the cavity intussuseption is filled with hydraulic oil.

Preferably, an installation cavity is formed in the fixed die, two L-shaped pipes fixedly connected with run through in the fixed die, L-shaped pipe one end runs through and extends to corresponding in the cavity, the other end runs through along extremely in the installation cavity, one section inside wall sealing sliding connection that the L-shaped pipe is located in the installation cavity has a piston, two the second rack has all been welded to the lateral wall of the relative one side of piston, the installation cavity inside wall rotates through the bearing and is connected with two second racks, the second rack meshes with the second gear that corresponds, the fixed die runs through sliding connection has two third racks, third rack one end run through extend to in the die cavity and with liftout plate lower surface welding, the other end run through along extremely in the installation cavity, the third rack with correspond the second gear meshing.

Preferably, the side wall of the fixed mold is connected with two ejection blocks in a sealing and sliding manner, the fixed mold is internally and fixedly connected with two sliding sleeves in a penetrating manner, the sliding sleeves penetrate through the corresponding cavities along the inner wall, sliding blocks are sleeved in the sliding sleeves in a sealing and sliding manner, and one ends of the sliding blocks, far away from the corresponding sliding plates, are welded with the corresponding ejection blocks.

Preferably, the side walls of the opposite sides of the two ejection blocks are cambered surfaces and coated with a release agent, and the upper surface of the ejection plate is coated with the release agent.

Preferably, the thread lead angle of the threaded rod is smaller than the equivalent friction angle of the threaded rod and the threaded cylinder forming a screw pair.

Preferably, the cross section of the sliding block is T-shaped.

The utility model discloses contrast prior art, its advantage lies in:

1. when the mold is opened, the first rack is driven to ascend through ascending of the movable mold, so that the first rack drives the first gear to rotate, the first gear drives the threaded cylinder to rotate, the sliding plate slides through threaded connection between the threaded cylinder and the threaded rod, hydraulic oil is pumped into the L-shaped pipe, the piston drives the second rack to move, the third rack is driven to move upwards through meshing between the second rack and the second gear, the third rack drives the ejector plate to move upwards, demolding is automatically completed during mold opening, and accordingly large labor intensity of manual demolding is avoided;

2. the sliding plate can press hydraulic oil into the sliding sleeve when moving, so that the sliding block in the sliding sleeve moves outwards towards the sliding sleeve, the ejection block is driven to separate the inner side wall of the cavity on the side edge of the product, the phenomenon that the side wall is directly demolded without being separated is avoided, the side wall of the product is damaged, and the demolding effect is better.

Drawings

Fig. 1 is a schematic structural view of a demolding device with a better demolding effect provided by the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a cross-sectional view taken along line B-B in fig. 1.

In the figure: the device comprises a fixed die 1, a movable die 2, a first rack 21, a cavity 3, a cavity 4, a sliding plate 5, a threaded cylinder 6, a threaded rod 7, a first gear 8, an installation cavity 9, a 10L-shaped tube, a piston 11, a second rack 12, a second gear 13, a third rack 14, an ejector plate 15, a sliding sleeve 16, a sliding block 17 and an ejector block 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a demoulding device with better demoulding effect comprises a fixed mould 1 and a movable mould 2, a cavity 3 is formed in the fixed mould 1, an ejector plate 15 is sleeved in the cavity 3 in a sealing and sliding manner, first racks 21 are welded on two opposite side walls of the movable mould 2, two cavities 4 are formed in the movable mould 2, sliding plates 5 are connected in the cavities 4 in a sealing and sliding manner, the fixed mould 1 is connected with a threaded cylinder 6 through a bearing in a penetrating and rotating manner, one end of the threaded cylinder 6 penetrates through the outside of the fixed mould 1, the other end of the threaded cylinder penetrates through the corresponding cavity 4, a first gear 8 is in interference fit with one end of the threaded cylinder 6, which is positioned outside the fixed mould 1, the first gear 8 is meshed with the corresponding first rack 21, the threaded cylinder 6 is in threaded connection with a threaded rod 7, one end of the threaded rod 7, which is positioned in the corresponding cavity 4, is welded with the side wall of the sliding plate 5, and hydraulic oil is filled in the cavity 4.

The installation cavity 9 is formed in the fixed die 1, the fixed die 1 is internally provided with two L-shaped pipes 10 in a penetrating and fixed mode, one end of each L-shaped pipe 10 penetrates and extends into the corresponding cavity 4, the other end penetrates and extends into the installation cavity 9, one section of inner side wall of each L-shaped pipe 10 in the installation cavity 9 is connected with a piston 11 in a sealing and sliding mode, the side wall of one side, opposite to the two pistons 11, is welded with a second rack 12, the inner side wall of the installation cavity 9 is connected with two second racks 13 in a rotating mode through a bearing, the second racks 12 are meshed with the corresponding second gears 13, the fixed die 1 is provided with two third racks 14 in a penetrating and sliding mode, one end of each third rack 14 penetrates and extends into the corresponding cavity 3 and is welded with the lower surface of the ejection plate 15, the other end penetrates and extends into the installation cavity 9, and the third racks 14 are meshed with the corresponding second gears 13.

The side wall of the fixed mould 1 is connected with two ejection blocks 18 in a sealing sliding manner, two sliding sleeves 16 penetrate through the fixed mould 1 and are fixedly connected, the sliding sleeves 16 penetrate through the corresponding cavities 4, sliding blocks 17 are sleeved in the sliding sleeves 16 in a sealing sliding manner, and one ends of the sliding blocks 17 far away from the corresponding sliding plates 5 are welded with the corresponding ejection blocks 18.

The side wall of one side opposite to the two ejection blocks 18 is an arc surface, and the arc surface is consistent with the side wall of the cavity 3, so that the quality of a product at the injection molding position is guaranteed, a release agent is coated, the upper surface of the ejection plate 15 is coated with the release agent, and the release agent is convenient for separating the product from the ejection plate 15 and the ejection blocks 18.

The lead angle of the threaded rod 7 is smaller than the equivalent friction angle of a screw pair formed by the threaded rod 7 and the threaded cylinder 6, so that the threaded connection between the threaded rod 7 and the threaded cylinder 6 realizes self-locking, and the phenomenon that the threaded connection part shakes to influence the stable operation of the device is avoided.

The cross-section of slider 17 is the T font, and the slider 17 of T font plays certain limiting displacement to the distance of restriction slider 17 roll-off sliding sleeve 16, thereby avoids ejecting block 18 transition to slide, damages the product.

The utility model discloses in, at first make moving die utensil 2 downstream, and fixed die utensil 1 is closed, after the closure is accomplished, carry out injection molding, after the completion of moulding plastics, wait for the cooling design, after the design, make moving die utensil 2 rise, moving die utensil 2 drives first rack 21 and rises, thereby through the meshing of first rack 21 and first gear 8, make first gear 8 drive the screw cylinder 6 rotation rather than interference fit, screw cylinder 6 rotates and makes threaded rod 7 drive sliding plate 5 through threaded connection, thereby make sliding plate 5 impress the hydraulic oil in cavity 4 in sliding sleeve 16 and L venturi tube 10, hydraulic oil impresses in sliding sleeve 16, make slider 17 slide to sliding sleeve 16 outward, thereby drive the roll-off of ejecting block 18 roll-off, separate product lateral wall and die cavity 3 inside wall;

meanwhile, hydraulic oil is pressed into the L-shaped pipe 10, so that the piston 11 in the L-shaped pipe 10 moves, the piston 11 drives the second rack 12 to move, the second rack 12 drives the second gear 13 meshed with the second rack to rotate, the third rack 14 meshed with the second gear 13 moves upwards, the third rack 14 drives the ejection plate 15 to move upwards, a product in the cavity 3 is ejected, demolding is completed at the moment, the product in the cavity 3 is taken out, and then injection molding is performed according to the steps.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The demolding device with the better demolding effect comprises a fixed mold (1) and a movable mold (2), wherein a cavity (3) is formed in the fixed mold (1), and is characterized in that an ejection plate (15) is sleeved in the cavity (3) in a sealing and sliding manner, first racks (21) are welded on two opposite side walls of the movable mold (2), two cavities (4) are formed in the movable mold (2), a sliding plate (5) is connected in the cavities (4) in a sealing and sliding manner, the fixed mold (1) is connected with a threaded cylinder (6) in a penetrating and rotating manner through a bearing, one end of the threaded cylinder (6) penetrates through the outside of the fixed mold (1), the other end of the threaded cylinder penetrates through the corresponding cavity (4), a first gear (8) is in interference fit with one end, located outside the fixed mold (1), of the threaded cylinder (6), and is meshed with the corresponding first rack (21), the threaded cylinder (6) is in threaded connection with a threaded rod (7), one end of the threaded rod (7) in the corresponding cavity (4) is welded to the side wall of the sliding plate (5), and hydraulic oil is filled in the cavity (4).

2. The demolding device with the better demolding effect according to claim 1, characterized in that a mounting cavity (9) is formed in the fixed mold (1), two L-shaped tubes (10) are fixedly connected in the fixed mold (1) in a penetrating manner, one end of each L-shaped tube (10) extends into the corresponding cavity (4) in a penetrating manner, the other end of each L-shaped tube (10) extends into the mounting cavity (9) in a penetrating manner, a section of inner side wall, located in the mounting cavity (9), of each L-shaped tube (10) is connected with a piston (11) in a sealing and sliding manner, second racks (12) are welded on the side walls of the two pistons (11) on the opposite sides, two second racks (12) are rotatably connected on the inner side wall of the mounting cavity (9) through bearings, the second racks (12) are meshed with corresponding second gears (13), and two third racks (14) are connected in the fixed mold (1) in a penetrating and sliding manner, one end of the third rack (14) penetrates through the cavity (3) and is welded with the lower surface of the ejection plate (15), the other end of the third rack penetrates through the installation cavity (9), and the third rack (14) is meshed with the corresponding second gear (13).

3. The demolding device with the better demolding effect according to claim 1, characterized in that two ejection blocks (18) are connected to the side wall of the fixed mold (1) in a sealing and sliding manner, two sliding sleeves (16) are fixedly connected to the inside of the fixed mold (1) in a penetrating manner, the sliding sleeves (16) penetrate into the corresponding cavities (4), sliding blocks (17) are sleeved in the sliding sleeves (16) in a sealing and sliding manner, and one ends of the sliding blocks (17) far away from the corresponding sliding plates (5) are welded with the corresponding ejection blocks (18).

4. A device for releasing more mold as claimed in claim 3, wherein the side wall of the opposite side of the two ejector blocks (18) is a curved surface and coated with a mold release agent, and the upper surface of the ejector plate (15) is coated with a mold release agent.

5. A device according to claim 1, characterized in that the lead angle of the threaded rod (7) is smaller than the equivalent friction angle of the screw pair formed by the threaded rod (7) and the threaded cylinder (6).

6. A device for facilitating the removal of a mold as claimed in claim 3, wherein the slider (17) has a T-shaped cross section.