CN218477066U - Injection mould - Google Patents

Abstract

The embodiment of the utility model discloses injection mold, including the first mould that has sliding channel, have the second mould of accomodating the groove, be used for ordering about first mould and second mould along the mutual lock of first direction first drive assembly, slide locate the slider in the sliding channel, be used for ordering about slider gliding second drive assembly in sliding channel, the second retaining member of being connected with the slider and being connected with the second mould. The sliding channel extends along the second direction, the sliding channel is communicated with the accommodating groove, and the accommodating groove is used for accommodating at least part of the sliding block. When the sliding block is embedded into the accommodating groove, the first locking piece and the second locking piece are abutted and held, and the first die and the second die are locked in the first direction. When the second driving assembly drives the sliding block to be far away from the accommodating groove, the first locking part is far away from the second locking part, and the restraint on the first die and the second die is released. Compare in prior art, this injection mold can avoid directly opening the phenomenon that first mould and second mould lead to injection mold to damage to take place.

Description

Injection mould

Technical Field

The utility model relates to the technical field of mold, especially, relate to an injection mold.

Background

The injection mold refers to a method of injecting a molten plastic matrix into a mold cavity having a specific shape, and then cooling and solidifying the molten plastic matrix to obtain a molded product. The method is suitable for mass production of parts with complex shapes, and is one of important processing methods. When there is hole, cave or the boss of equidirectional on the injection molding, then need set up the side mechanism of loosing core that can lateral shifting on the mould, this side mechanism of loosing core is mostly oblique guide pillar, slider etc. turn into the structure of left and right lateral motion with the motion of fore-and-aft direction. When the mold is used for injection molding and opening the mold, the side core-pulling mechanism is mainly pulled out, and then the front mold and the rear mold are opened to take out the injection molding piece.

When the molds are not produced, the molds need to be stacked and stored after being closed, and the maintenance and the repair of the molds are carried out regularly. However, for workers who are not familiar with such a mold, when maintaining the mold, the front and rear molds are easily opened without removing the side core pulling mechanism, and the mold is easily damaged.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide an injection mold capable of solving the above problems.

An injection mold comprises a first mold with a sliding channel, a second mold with a receiving groove, a first driving assembly for driving the first mold and the second mold to be mutually buckled along a first direction, a sliding block arranged in the sliding channel in a sliding mode, a second driving assembly for driving the sliding block to slide in the sliding channel, a first locking piece fixedly connected with the sliding block and a second locking piece fixedly connected with the second mold;

the sliding channel extends along a second direction, and when the first die and the second die are buckled, the sliding channel is communicated with the accommodating groove, and the accommodating groove is used for accommodating at least part of the sliding block;

when the sliding block is embedded into the accommodating groove, the first locking piece is abutted against the second locking piece, and the first die and the second die are locked in a first direction;

when the second driving assembly drives the sliding block to be far away from the accommodating groove, the first locking piece is far away from the second locking piece, and the constraint of the first die and the second die is released.

In some embodiments of the injection mold, the first locking member includes a first extension fixedly connected to the slide block, and a first locking portion located on the first extension, the first extension extends toward a direction close to the second mold, and the first extension extends toward a direction close to the receiving groove;

the second locking piece comprises a second extending part fixedly connected with the second die and a second locking part positioned on the second extending part, the second extending part extends towards the direction close to the first die, and the second locking part extends towards the direction far away from the accommodating groove;

the surface of the first locking part close to the sliding block is used for abutting against the surface of the second locking part close to the second die.

In some embodiments of the injection mold, the abutting surfaces of the first locking portion and the second locking portion extend in a second direction.

In some embodiments of the injection mold, the first mold is further provided with a movable cavity communicating with the sliding channel, the movable cavity penetrates through the first mold in the direction of the second mold, and the movable cavity accommodates the first locking member and the second locking member and is used for providing a space for the first locking member to move.

In some embodiments of the injection mold, the caliber of the sliding block near the accommodating groove is reduced and forms a step, the side surface of the movable cavity near the accommodating groove and the side surface of the sliding channel near the movable cavity enclose to form a limiting table, and the limiting table is used for abutting against the step.

In some embodiments of the injection mold, the second locking member abuts against a side surface of the movable cavity close to the accommodating groove, and the side surface of the movable cavity close to the accommodating groove inclines towards the movable cavity.

In some embodiments of the injection mold, when the first mold, the second mold and the slider are buckled, a gap for injection molding exists between the first mold and the second mold, and between the accommodating groove and the slider.

In some embodiments of the injection mold, the second mold includes a mold body, and a first lifter and a second lifter that are all disposed on the mold body, the first lifter, the second lifter and the mold body are spliced to form the accommodating groove, the gap exists between the first lifter and the first mold, and the gap exists between the second lifter and the first mold.

In some embodiments of the injection mold, the second mold further includes a third driving assembly and a fourth driving assembly, the third driving assembly is configured to drive the first lifter to be away from the second mold and away from a structure of the injection molding part corresponding to the receiving groove, and the fourth driving assembly is configured to drive the second lifter to be away from the second mold and away from a structure of the injection molding part corresponding to the receiving groove.

In some embodiments of the injection mold, the injection mold further comprises a fifth driving assembly and a limiting block connected with the fifth driving assembly, and a limiting groove used for accommodating the limiting block is formed in the sliding block so as to limit the sliding block to move along the second direction.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

according to the injection mold provided by the embodiment, the first driving assembly drives the first mold and the second mold to be mutually buckled, and the accommodating groove is communicated with the sliding channel. Second drive assembly orders about the slider and is close to the direction removal of accomodating the groove, and first retaining member on being fixed in the slider removes along with the slider towards the direction of second retaining member, when the inslot was accomodate in the slider embedding, first retaining member and the cooperation of second retaining member joint to retrain the slider on the first direction, retrain first mould and second mould on the first direction promptly. When the worker tries to directly open the first and second dies, the first and second locking members can obstruct the opening of the first and second dies. Compare in prior art, the injection mold that this embodiment provided locks first mould and second mould under the condition that the slider was not taken out from to avoid directly opening the phenomenon that first mould and second mould lead to injection mold to damage to take place.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

FIG. 1 is a schematic view of a portion of a structure of an injection molded part according to an embodiment.

Fig. 2 is a cross-sectional view of the injection molded part of fig. 1.

Fig. 3 is a schematic structural diagram of an injection mold according to an embodiment.

Fig. 4 is a sectional view of the injection mold of fig. 3.

Fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Fig. 6 is an exploded view of the injection mold of fig. 3.

Fig. 7 is a schematic view of a portion of the injection mold of fig. 6.

Fig. 8 is a schematic view of a portion of the injection mold of fig. 6.

Reference numerals:

10-injection molded part, 10 a-deep groove structure;

100-injection molding;

110-a first die, 110 a-a sliding channel, 110 b-a movable cavity, 110 c-a limiting table, 110 d-a positioning groove, 112-a first guide component, 114-a second guide component;

120-second die, 120 a-receiving groove, 121-die body, 1212-positioning table, 122-first lifter, 124-second lifter, 126-third drive assembly, 128-fourth drive assembly;

130-slider, 130 a-step;

140-a second drive assembly;

150-a first locking member, 152-a first extension, 154-a first locking portion;

160-a second locking member, 162-a second extension, 164-a second locking portion;

172-fifth drive assembly, 174-stop block.

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.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, interchangeably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

It should be noted that the present invention provides an injection mold 100 for injection molding of injection molded parts 10 having holes or grooves different from the injection molding direction. Referring to fig. 1 and 2, in one embodiment, the injection-molded part 10 is bent toward the left, and the side of the injection-molded part 10 is provided with a deep groove structure 10a extending toward the left. For the convenience of injection molding, the mold opening direction of the injection mold 100 is the up-down direction, and the profile of the deep groove structure 10a is configured by the slider 130 structure.

Referring to fig. 1 to 8, an embodiment of the present invention provides an injection mold 100, including a first mold 110 having a sliding channel 110a, a second mold 120 having a receiving groove 120a, a first driving assembly for driving the first mold 110 and the second mold 120 to be mutually fastened along a first direction, a sliding block 130 slidably disposed in the sliding channel 110a, a second driving assembly 140 for driving the sliding block 130 to slide in the sliding channel 110a, a first locking member 150 fixedly connected to the sliding block 130, and a second locking member 160 fixedly connected to the second mold 120. The sliding channel 110a extends along the second direction, and when the first die 110 is fastened to the second die 120, the sliding channel 110a is communicated with the receiving groove 120a, and the receiving groove 120a is used for receiving at least a part of the slider 130. When the sliding block 130 is inserted into the receiving groove 120a, the first locking member 150 abuts against the second locking member 160, and locks the first mold 110 and the second mold 120 in the first direction. When the second driving unit 140 drives the slider 130 away from the receiving groove 120a, the first locking member 150 is moved away from the second locking member 160 and the constraint of the first and second dies 110 and 120 is released.

When the injection mold 100 provided in the above embodiment is used for injection molding, the first driving assembly drives the first mold 110 and the second mold 120 to be fastened to each other, and at this time, the receiving groove 120a is communicated with the sliding channel 110 a. The second driving unit 140 drives the sliding block 130 to move in a direction close to the receiving groove 120a, and the first locking member 150 fixed to the sliding block 130 moves with the sliding block 130 in a direction toward the second locking member 160, so that when the sliding block 130 is inserted into the receiving groove 120a, the first locking member 150 is engaged with the second locking member 160 and restrains the sliding block 130 in the first direction, that is, the first mold 110 and the second mold 120 in the first direction. When a worker attempts to directly open the first and second molds 110 and 120, the first and second locking members 150 and 160 can obstruct the opening of the first and second molds 110 and 120.

Compared with the prior art, the injection mold 100 provided by the embodiment locks the first mold 110 and the second mold 120 without pulling out the slider 130, thereby avoiding the occurrence of the phenomenon that the injection mold 100 is damaged due to the direct opening of the first mold 110 and the second mold 120.

Referring to fig. 7, in an embodiment, the first locking member 150 includes a first extending portion 152 fixedly connected to the sliding block 130 and a first locking portion 154 disposed on the first extending portion 152, the first extending portion 152 extends toward the second mold 120, and the first extending portion 152 extends toward the first locking portion 154 adjacent to the receiving groove 120 a. The second locking member 160 includes a second extending portion 162 fixedly connected to the second die 120 and a second locking portion 164 located on the second extending portion 162, the second extending portion 162 extends toward the direction close to the first die 110, and the second locking portion 164 extends toward the direction away from the receiving groove 120 a. The surface of the first locking portion 154 close to the slider 130 is used for abutting against the surface of the second locking portion 164 close to the second die 120.

The first extension portion 152 and the second extension portion 162 enable the first locking portion 154 and the second locking portion 164 to achieve a proper matching position. When the first locking portion 154 moves with the slider 130 and reaches an end of the second locking portion 164 away from the slider 130, the second locking portion 164 abuts against the first locking portion 154. At this time, when the worker opens the first mold 110 and the second mold 120 by an external force, the second locking portion 164 applies a force toward the second mold 120 to the first locking portion 154, thereby preventing the first mold 110 and the second mold 120 from being opened.

The injection mold 100 provided in this embodiment adopts a mechanical locking structure, and realizes the locking of the first mold 110 and the second mold 120 by the action of the slider 130 being inserted into the receiving groove 120a, without adding a new power source and without adding a new mold opening action, so that the structure has a certain ingenuity.

Optionally, first locking member 150 and second locking member 160 are a wear resistant, self lubricating material. Therefore, the friction force generated when the first locking member 150 is attached to the second locking member 160 can be relatively reduced, and the service life of the structure is prolonged.

Preferably polytetrafluoroethylene, nylon, polycarbonate.

In a specific embodiment, the abutting surfaces of the first locking portion 154 and the second locking portion 164 extend in the second direction. This can relatively increase the contact area between the first locking portion 154 and the second locking portion 164, thereby reducing the concentration of the acting force and improving the reliability of locking.

Referring to fig. 4 and 5, in another embodiment, the first mold 110 further has a movable cavity 110b communicating with the sliding channel 110a, the movable cavity 110b extends through the first mold 110 toward the second mold 120, and the movable cavity 110b receives the first locking member 150 and the second locking member 160 and provides a space for the first locking member 150 to move.

In this embodiment, a part of the solid in the first mold 110 is hollowed out to serve as the movable cavity 110b, which does not increase the usage space of the injection mold 100, and further improves the structural compactness of the injection mold 100.

In a specific embodiment, the aperture of the sliding block 130 near the receiving groove 120a is reduced and forms a step 130a, the side surface of the movable cavity 110b near the receiving groove 120a and the side surface of the sliding channel 110a near the movable cavity 110b enclose to form a limit table 110c, and the limit table 110c is used for abutting against the step 130a.

In general, in order to avoid the slide 130 from being excessively inserted into the receiving groove 120a and affecting the space of the injection molded article 10, it is necessary to provide a stopper in the injection mold 100 for restricting the slide 130 from continuing to move in the direction of the receiving groove 120 a.

In the above embodiment, the movable cavity 110b is used for accommodating the first locking member 150 and the second locking member 160, and in the embodiment, the movement of the slider 130 is limited by the limiting table 110c formed by the inner wall of the movable cavity 110b and the sliding channel 110a, so that the ingenuity and the simplicity of the structure can be embodied.

In order to reduce the damage to the contact between the limiting table 110c and the step 130a, the limiting table 110c and the step 130a are both provided with round corners.

In addition, in order to improve the limit effect, the step 130a is an annular step 130a, and the sliding channel 110a is further provided with a limit surface for abutting against the annular step 130a.

In a more specific embodiment, second locking member 160 abuts the side of movable chamber 110b adjacent to receiving slot 120a, and the side of movable chamber 110b adjacent to receiving slot 120a is inclined inwardly of movable chamber 110 b.

It is understood that when the first locking member 150 is moved toward the second locking member 160, the second locking member 160 is forced toward the receiving groove 120 a. Therefore, in this embodiment, the second locking member 160 abuts against the side surface of the receiving groove 120a, so that the side surface of the receiving groove 120a can bear the acting force, thereby protecting the second locking member 160.

Furthermore, the side surface abutting against the receiving groove 120a is inclined, so that the second locking member 160 can be prevented from obstructing the first mold 110 from being far away from the second mold 120 when the mold is opened.

Referring to fig. 4 and 5, in another embodiment, when the first mold 110, the second mold 120 and the slider 130 are buckled, a gap for injection molding exists between the first mold 110 and the second mold 120, and between the receiving groove 120a and the slider 130.

The gap is used to fill the molten plastic matrix and, after cooling, the finished injection molded part 10 is obtained.

In one embodiment, the second mold 120 includes a mold body 121, and a first slanted ejecting portion 122 and a second slanted ejecting portion 124 both disposed on the mold body 121, the first slanted ejecting portion 122, the second slanted ejecting portion 124 and the mold body 121 are joined to form a receiving groove 120a, a gap exists between the first slanted ejecting portion 122 and the first mold 110, and a gap exists between the second slanted ejecting portion 124 and the first mold 110.

When the slide 130 is withdrawn from the receiving groove 120a, the mold bodies 121 of the first mold 110 and the second mold 120 are separated, and the first lifter 122 and the second lifter 124 move with the first mold 110 away from the second mold 120. By adopting the design, the structure at the deep groove structure 10a of the injection molding part 10 can be prevented from being stuck in the second mold 120, so that the injection molding part 10 can be separated.

Referring to fig. 6 and 8, in a more specific embodiment, the second mold 120 further includes a third driving component 126 and a fourth driving component 128, the third driving component 126 is used for driving the first lifter 122 away from the second mold 120 and away from the structure of the injection molded part 10 corresponding to the receiving groove 120a, and the fourth driving component 128 is used for driving the second lifter 124 away from the second mold 120 and away from the structure of the injection molded part 10 corresponding to the receiving groove 120 a.

It can be directly seen that the extending directions of the third driving assembly 126 and the fourth driving assembly 128 are inclined to the first direction, and the third driving assembly 126 and the fourth driving assembly 128 are crossed with each other to apply horizontal forces to the first lifter 122 and the second lifter 124 respectively, so as to pull the first lifter 122 and the second lifter 124 away from the injection-molded part 10.

In this embodiment, the first lifter 122 and the second lifter 124 surround the slider 130 to form the deep groove structure 10a of the injection molded article 10, and then when the first mold 110 is far away from the second mold 120, the third driving assembly 126 and the fourth driving assembly 128 respectively drive the first lifter 122 and the second lifter 124 to move along with the first mold 110, so that the first lifter 122 and the second lifter 124 are separated from the deep groove structure 10a of the injection molded article 10, and finally the first lifter 122 and the second lifter 124 are retracted into the second mold 120. Through such a series of designs, the production of the complex injection molding part 10 is completed, and the ingenuity of the structure of the injection mold 100 can be embodied.

Referring to fig. 4 and fig. 6, in another embodiment, the injection mold 100 further includes a fifth driving assembly 172 and a limiting block 174 connected to the fifth driving assembly 172, and the sliding block 130 is provided with a limiting groove (not shown) for receiving the limiting block 174 to limit the sliding block 130 to move along the second direction. The injection mold 100 provided by the embodiment can prevent the sliding block 130 from moving away from the receiving groove 120a under pressure during injection, thereby ensuring the reliability of the injection mold 100.

It is worth mentioning that when the worker tries to open the first die 110 and the second die 120 directly, the first locking member 150 receives a force component in the second direction. In this embodiment, the limiting block 174 can lock the sliding block 130 in the second direction, so as to limit the movement of the sliding block 130, and further ensure the safety of the injection mold 100.

Referring to fig. 4 and fig. 6, in another embodiment, a first guide assembly 112 and a second guide assembly 114 are disposed in the first mold 110, and the first guide assembly 112 and the second guide assembly 114 are both sleeved on the outer periphery of the sliding block 130, so as to facilitate the sliding of the sliding block 130. Specifically, linear bearings are disposed in both the first guide assembly 112 and the second guide assembly 114.

In a specific embodiment, a positioning table 1212 is disposed on an end surface of the second die 120 close to the first die 110, a positioning groove 110d is disposed on an end of the first die 110 close to the second die 120, and the positioning table 1212 is embedded into the positioning groove 110d when the first die 110 is fastened to the second die 120. This allows the first mold 110 and the second mold 120 to be aligned, thereby improving the processing accuracy of the injection mold 100.

In addition, in any of the above embodiments, the power source, such as the first driving assembly and the second driving assembly 140, may be, but is not limited to, a hydraulic cylinder structure.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. An injection mold is characterized by comprising a first mold with a sliding channel, a second mold with a receiving groove, a first driving assembly for driving the first mold and the second mold to be mutually buckled along a first direction, a sliding block arranged in the sliding channel in a sliding mode, a second driving assembly for driving the sliding block to slide in the sliding channel, a first locking piece fixedly connected with the sliding block and a second locking piece fixedly connected with the second mold;

the sliding channel extends along a second direction, and when the first die and the second die are buckled, the sliding channel is communicated with the accommodating groove, and the accommodating groove is used for accommodating at least part of the sliding block;

when the sliding block is embedded into the accommodating groove, the first locking piece is abutted against the second locking piece, and the first die and the second die are locked in a first direction;

when the second driving assembly drives the sliding block to be far away from the accommodating groove, the first locking piece is far away from the second locking piece, and constraint on the first die and the second die is released.

2. The injection mold of claim 1, wherein the first locking member comprises a first extension fixedly connected to the slide and a first locking portion on the first extension, the first extension extending in a direction adjacent to the second mold, the first extension extending in a direction adjacent to the receiving groove;

the second locking piece comprises a second extending part fixedly connected with the second die and a second locking part positioned on the second extending part, the second extending part extends towards the direction close to the first die, and the second locking part extends towards the direction far away from the accommodating groove;

the surface of the first locking part close to the sliding block is used for abutting against the surface of the second locking part close to the second die.

3. An injection mould according to claim 2, characterized in that the abutment surfaces of the first and second locking portions extend in a second direction.

4. An injection mold as claimed in any one of claims 1-3, wherein said first mold further defines a movable cavity communicating with said slide channel, said movable cavity extending through said first mold in a direction toward said second mold, said movable cavity receiving said first retaining member and said second retaining member and providing space for movement of said first retaining member.

5. An injection mold according to claim 4, wherein the caliber of the sliding block near the accommodating groove is reduced and forms a step, the side surface of the movable cavity near the accommodating groove and the side surface of the sliding channel near the movable cavity enclose a limiting table, and the limiting table is used for abutting against the step.

6. The injection mold of claim 5, wherein the second retaining member abuts a side of the movable cavity adjacent to the receiving slot, and the side of the movable cavity adjacent to the receiving slot is inclined toward the inside of the movable cavity.

7. An injection mold according to any one of claims 1-3, wherein when the first mold, the second mold and the slide block are engaged, there is a gap for injection molding between the first mold and the second mold, the receiving groove and the slide block.

8. An injection mold as claimed in claim 7, wherein said second mold includes a mold body and a first lifter and a second lifter all disposed on said mold body, said first lifter, said second lifter and said mold body are spliced to form said receiving slot, said gap exists between said first lifter and said first mold, and said gap exists between said second lifter and said first mold.

9. An injection mold as claimed in claim 8, wherein said second mold further comprises a third drive assembly for urging said first lifter away from said second mold and away from a structure of said injection molded part corresponding to said receiving slot, and a fourth drive assembly for urging said second lifter away from said second mold and away from a structure of said injection molded part corresponding to said receiving slot.

10. The injection mold of any one of claims 1-3, further comprising a fifth driving assembly and a limiting block connected to the fifth driving assembly, wherein the sliding block is provided with a limiting groove for accommodating the limiting block so as to limit the sliding block to move along the second direction.

Images