CN214645595U

CN214645595U - Automatic plastic mould of drawing of patterns

Info

Publication number: CN214645595U
Application number: CN202120708098.1U
Authority: CN
Inventors: 郎学雄; 郎臻
Original assignee: Shenzhen Hengda Weiye Plastic Co ltd
Current assignee: Shenzhen Hengda Weiye Plastic Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-11-09
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a plastic mould capable of automatically demoulding, which comprises a movable mould body and a base arranged at the bottom of the movable mould body, wherein a groove is fixedly connected with an installation block on the side wall close to a module, a separation plate is movably arranged on the side wall of the installation block, the tail end of the separation plate is fixedly connected with a reset spring, the side wall of a guide block is arranged into an inclined plane, and the tail end of the inclined plane is arranged into an arc surface, after the injection molding is completed, the separation plate can rotate towards the direction of the module under the action of the guide block in the process of moving the movable mould base downwards, so that a template is pushed to be separated from the movable mould base, partial demoulding is completed, no extra external force input is needed in the process, the structure is simple, the demoulding effect is good, in the process of moving the transmission plate upwards, because the transmission plate is not contacted with the movable mould base, a demoulding rod moves upwards in a through groove until a workpiece after the ejection molding is formed, the movable plate is contacted with the movable mould base, the movable mould seat can be pushed upwards until the mould block is level with the demoulding rod, and then the next injection moulding can be carried out.

Description

Automatic plastic mould of drawing of patterns

Technical Field

The utility model relates to a plastic mould technical field specifically is an automatic plastic mould of drawing of patterns.

Background

The plastic mold is a short name for a combined mold used for compression molding, extrusion molding, injection, blow molding and low-foaming molding. The coordination change of the male die, the female die and the auxiliary forming system of the die can process a series of plastic parts with different shapes and sizes. The plastic mold mainly comprises a female mold with a variable mold cavity and composed of a female mold combined substrate, a female mold component and a female mold combined clamping plate, and a male mold with a variable mold core and composed of a male mold combined substrate, a male mold component, a male mold combined clamping plate, a mold cavity cut-off component and a side cut-off combined plate.

The existing plastic mold often needs an additional power output device to push the ejector rod in the demolding process so as to complete demolding, so that the mold is too large in size, not easy to install and high in manufacturing cost.

Therefore, we have proposed an automatic demolding plastic mold.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic demoulding's plastic mould, fixedly connected with installation piece on the lateral wall that the recess is close to the module, the activity is provided with the separation plate on the lateral wall of installation piece, the end fixedly connected with reset spring of separation plate, the lateral wall of guide block sets up to the inclined plane, and the end of inclined plane sets up to the arcwall face, after accomplishing the injection molding, the movable mould seat is in the process that moves down, the separation plate can rotate to the direction of module under the effect of guide block, thereby promote template and movable mould seat separation, thereby accomplish partial drawing of patterns, do not need extra external force input in the process, and simple structure, good demoulding effect, in the process that the movable mould seat moved up, reset spring can reset the separation plate, fixedly connected with the connecting rod between the inner wall of guide block, the gyro wheel has been cup jointed in the activity on the outer wall of connecting rod, when the separation plate rotates in a reciprocating way, the gyro wheel can be fine supplementary separation plate rotates, reduce the friction when the stripper plate moves, improve holistic life, at the in-process of driver plate rebound, because driver plate and movable mould seat do not contact yet, the ejector pin is at logical inslot rebound, until the work piece after ejecting the shaping, wait to the driver plate and the movable mould seat after contacting, can upwards promote the movable mould seat, flush until module and ejector pin, can carry out the injection moulding next time to the problem that proposes in the above-mentioned background has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a plastic mold capable of automatically demolding comprises a movable mold body, a base and a fixed mold body, wherein the base is installed at the bottom of the movable mold body, the fixed mold body is installed at the upper end of the movable mold body, the movable mold body comprises a movable mold base and movable grooves formed in the upper end of the movable mold base, guide pillars are arranged between the inner walls of the movable grooves, the top ends of the guide pillars are fixedly connected with a mold plate, through grooves are formed in the upper end of the movable mold base, demolding rods are movably arranged between the inner walls of the through grooves, the length of each demolding rod is larger than that of each through groove, and the bottoms of the demolding rods are fixedly connected with a transmission plate;

the movable die base comprises a module arranged at the upper end of the movable die base and a groove arranged at the upper end of the movable die base, the groove is close to the side wall of the module and is fixedly connected with an installation block, a separation plate is movably arranged on the side wall of the installation block and is arranged between the movable die base and the template, and the tail end of the separation plate is fixedly connected with a reset spring.

Further, the separation plate comprises a plate body and fixed rods fixedly connected to two side walls of one end of the plate body, the tail ends of the fixed rods are fixedly connected with stop blocks, movable rods are movably arranged at the other ends of the plate body, and one ends of the movable rods are movably connected to the side walls of the mounting blocks.

Further, the bottom end of the guide pillar is fixedly connected with a limiting plate.

Furthermore, a die cavity is formed in the upper end of the die plate in a penetrating mode.

Further, the cover half body includes the cover half seat and sets up the glue injection groove in the cover half seat upper end, and the bottom fixedly connected with curb plate of cover half seat, and the curb plate constitutes the shaping groove.

Further, the bottom of curb plate is provided with the guide block, fixedly connected with connecting rod between the inner wall of guide block, and the gyro wheel has been cup jointed in the activity on the outer wall of connecting rod.

Furthermore, two ends of the return spring are respectively fixed on the side walls of the fixed rod and the guide block.

Further, the side wall of the guide block is set to be an inclined surface, and the tail end of the inclined surface is set to be an arc-shaped surface.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides an automatic demoulding's plastic mould, fixedly connected with installation piece on the lateral wall that the recess is close to the module, the activity is provided with the separation plate on the lateral wall of installation piece, the separation plate sets up between movable mould seat and template, the end fixedly connected with reset spring of separation plate, the separation plate includes the plate body and fixedly connects the dead lever on the both sides wall of plate body one end, the end fixedly connected with dog of dead lever, the other end activity of plate body is provided with the movable rod, and one end swing joint of movable rod is on the lateral wall of installation piece, the lateral wall of guide block sets up to the inclined plane, and the end of inclined plane sets up to the arcwall face, after accomplishing the injection moulding, the movable mould seat moves down the in-process, the separation plate can rotate to the direction of module under the effect of guide block, thereby promote template and movable mould seat separation, thereby accomplish partial drawing of patterns, in-process need not extra external force input, and simple structure, the drawing of patterns is effectual, and at the in-process that moves on the movable mould seat, reset spring can reset the separator.

2. The utility model provides an automatic plastic mould of drawing of patterns, fixedly connected with connecting rod between the inner wall of guide block, the gyro wheel has been cup jointed in the activity on the outer wall of connecting rod, and when the stripper plate reciprocating rotation, the supplementary stripper plate that the gyro wheel can be fine rotates, and the friction when reducing the stripper plate motion improves holistic life.

3. The utility model provides an automatic plastic mould of drawing of patterns, the movable mould seat is close to middle department and runs through and has seted up two sets of logical grooves, the activity is provided with the stripper bar between the inner wall that leads to the groove, and the length of stripper bar is greater than the length that leads to the groove, the bottom fixedly connected with driving plate of stripper bar, at the in-process of driving plate rebound, because driving plate and movable mould seat do not contact yet, the stripper bar is leading to inslot rebound, work piece after ejecting shaping, wait the runner and contact the back with the movable mould seat, can upwards promote the movable mould seat, flush up to module and stripper bar, can carry out next time and mould plastics.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural section view of the movable mold body of the present invention;

FIG. 3 is a schematic diagram of the structure of the separating plate of the present invention;

fig. 4 is the schematic view of the sectional structure of the fixed mold body of the present invention.

In the figure: 1. a movable mold body; 11. a movable die holder; 111. a module; 112. a groove; 113. mounting blocks; 114. a separation plate; 1141. a plate body; 1142. fixing the rod; 1143. a stopper; 1144. a movable rod; 115. a return spring; 12. a movable groove; 13. a guide post; 131. a limiting plate; 14. a template; 141. a die cavity; 15. a through groove; 16. a stripper bar; 17. a drive plate; 2. a base; 3. the fixed die body; 31. fixing a die holder; 32. injecting glue groove; 33. forming a groove; 34. a side plate; 35. a guide block; 36. a connecting rod; 37. and a roller.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, an automatic demolding plastic mold comprises a movable mold body 1, a base 2 installed at the bottom of the movable mold body 1, and a fixed mold body 3 installed at the upper end of the movable mold body 1, wherein the movable mold body 1 comprises a movable mold base 11 and a movable groove 12 opened at the upper end of the movable mold base 11, the movable mold base 11 comprises a mold block 111 installed at the upper end of the movable mold base 11 and a groove 112 opened at the upper end of the movable mold base 11, two sets of grooves 112 are opened, the two sets of grooves 112 are respectively arranged at two sides of the mold block 111, an installation block 113 is fixedly connected to the side wall of the groove 112 close to the mold block 111, a separation plate 114 is movably arranged on the side wall of the installation block 113, the separation plate 114 is arranged between the movable mold base 11 and the mold plate 14, a return spring 115 is fixedly connected to the tail end of the separation plate 114, a guide post 13 is movably arranged between the inner walls of the movable groove 12, and the guide post 13 extends to the outside of the movable groove 12, the bottom end of the guide pillar 13 is fixedly connected with a limiting plate 131, the top end of the guide pillar 13 is fixedly connected with a template 14, the upper end of the template 14 is penetrated and provided with a mold groove 141, the size of the mold groove 141 is the same as that of the module 111, two groups of through grooves 15 are penetrated and provided at the position, close to the middle, of the movable mold base 11, a demolding rod 16 is movably arranged between the inner walls of the through grooves 15, the length of the demolding rod 16 is larger than that of the through grooves 15, the bottom of the demolding rod 16 is fixedly connected with a driving plate 17, in the upward movement process of the driving plate 17, the driving plate 17 is not in contact with the movable mold base 11, the demolding rod 16 moves upward in the through grooves 15 until a molded workpiece is ejected, after the driving plate 17 is in contact with the movable mold base 11, the movable mold base 11 can be pushed upward until the module 111 is flush with the demolding rod 16, and next injection molding can be carried out.

Referring to fig. 3-4, in the plastic mold with automatic demolding, the separating plate 114 includes a plate body 1141 and a fixing rod 1142 fixedly connected to two sidewalls of one end of the plate body 1141, a stop block 1143 is fixedly connected to a tail end of the fixing rod 1142, a movable rod 1144 is movably disposed at the other end of the plate body 1141, and one end of the movable rod 1144 is movably connected to a sidewall of the mounting block 113; the fixed die body 3 comprises a fixed die holder 31 and a glue injection groove 32 arranged at the upper end of the fixed die holder 31, the bottom of the fixed die holder 31 is fixedly connected with a side plate 34, the side plate 34 forms a forming groove 33, the bottom of the side plate 34 is provided with a guide block 35, two ends of a return spring 115 are respectively fixed on the side walls of a fixed rod 1142 and the guide block 35, the side wall of the guide block 35 is provided with an inclined surface, and the tail end of the inclined surface is provided with an arc-shaped surface, after the injection molding is completed, the movable die holder 11 moves downwards, the separating plate 114 can rotate towards the direction of the die block 111 under the action of the guide block 35, so as to push the die plate 14 to be separated from the movable die holder 11, thereby completing the partial demolding, no extra external force input is needed in the process, the structure is simple, the demolding effect is good, in the process that the movable die holder 11 moves upwards, the return spring 115 can reset the separating plate 114, and a connecting rod 36 is fixedly connected between the inner walls of the guide block 35, the outer wall of the connecting rod 36 is movably sleeved with the roller 37, when the separating plate 114 rotates in a reciprocating mode, the roller 37 can well assist the separating plate 114 to rotate, friction of the separating plate 114 during movement is reduced, and the service life of the whole separating plate is prolonged.

The working principle is as follows: when the movable mold base 11, the mold plate 14 and the fixed mold body 3 are closed, plastic is injected into the mold groove 141 through the glue injection groove 32, after the plastic is cooled, the transmission plate 17 moves downwards under the driving of the hydraulic rod, the movable mold base 11 moves downwards in the moving process, the separation plate 114 rotates towards the direction of the module 111 under the driving of the guide block 35, the mold plate 14 and the movable mold base 11 can be separated by the top end of the separation plate 114, so that the demolding is completed, in the moving process of the transmission plate 17 driven by the hydraulic rod, the demolding rod 16 can move in the through groove 15 because the transmission plate 17 is not in contact with the movable mold base 11 yet until a workpiece is ejected out, the integral closing is completed after the transmission plate 17 and the movable mold base 11, and the next injection molding can be performed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic plastic mould of drawing of patterns, includes movable mould body (1) and installs base (2) in movable mould body (1) bottom to and install cover half body (3) in movable mould body (1) upper end, its characterized in that: the movable die comprises a movable die holder (1) and a movable groove (12) arranged at the upper end of the movable die holder (11), wherein guide pillars (13) are arranged between the inner walls of the movable groove (12), the top end of each guide pillar (13) is fixedly connected with a die plate (14), a through groove (15) is formed in the upper end of the movable die holder (11), a demolding rod (16) is movably arranged between the inner walls of the through grooves (15), the length of the demolding rod (16) is greater than that of the through groove (15), and a transmission plate (17) is fixedly connected to the bottom of the demolding rod (16);

the movable die holder (11) comprises a module (111) arranged at the upper end of the movable die holder (11) and a groove (112) formed in the upper end of the movable die holder (11), the groove (112) is fixedly connected with an installation block (113) on the side wall close to the module (111), a separation plate (114) is movably arranged on the side wall of the installation block (113), the separation plate (114) is arranged between the movable die holder (11) and the template (14), and the tail end of the separation plate (114) is fixedly connected with a return spring (115).

2. The automatic demolding plastic mold as claimed in claim 1, wherein: the separation plate (114) comprises a plate body (1141) and a fixed rod (1142) fixedly connected to two side walls of one end of the plate body (1141), a stop block (1143) is fixedly connected to the tail end of the fixed rod (1142), a movable rod (1144) is movably arranged at the other end of the plate body (1141), and one end of the movable rod (1144) is movably connected to the side wall of the mounting block (113).

3. The automatic demolding plastic mold as claimed in claim 1, wherein: the bottom end of the guide post (13) is fixedly connected with a limiting plate (131).

4. The automatic demolding plastic mold as claimed in claim 1, wherein: and a die cavity (141) is formed in the upper end of the die plate (14) in a penetrating manner.

5. The automatic demolding plastic mold as claimed in claim 1, wherein: the fixed die body (3) comprises a fixed die base (31) and a glue injection groove (32) formed in the upper end of the fixed die base (31), a side plate (34) is fixedly connected to the bottom of the fixed die base (31), and the side plate (34) forms a forming groove (33).

6. The automatic demolding plastic mold as claimed in claim 5, wherein: the bottom of curb plate (34) is provided with guide block (35), fixedly connected with connecting rod (36) between the inner wall of guide block (35), and gyro wheel (37) have been cup jointed in the activity on the outer wall of connecting rod (36).

7. The automatic demolding plastic mold as claimed in claim 1, wherein: and two ends of the reset spring (115) are respectively fixed on the side walls of the fixing rod (1142) and the guide block (35).

8. The automatic demolding plastic mold as claimed in claim 6, wherein: the side wall of the guide block (35) is arranged to be an inclined surface, and the tail end of the inclined surface is arranged to be an arc-shaped surface.