Injection mold

Abstract

The invention relates to the technical field of molds, and discloses an injection mold which comprises a fixed mold, a driving mechanism and a retaining mechanism. The fixed mold is provided with a first channel and a second channel; the retaining mechanism comprises a first core-pulling connecting block and a second core-pulling connecting block, the driving mechanism is connected with the first core-pulling connecting block, and the first core-pulling connecting block is connected with the second core-pulling connecting block; a first groove communicated with the first channel is formed in the fixed mold, a retaining positioning block is arranged in the first groove, a positioning groove facing the first channel is formed in the retaining positioning block, a driving block is arranged at the driving end of the driving mechanism, the first core pulling connecting block is provided with a first sliding way and a second sliding way, and a sliding block is arranged in the second sliding way. The sliding block is provided with a first end and a second end, the driving block is matched with the first end, and the driving block and the first end are configured to drive the sliding block to move so that the second end can stretch into the positioning groove when the driving block moves towards the second core-pulling connecting block and the sliding block and the positioning groove are oppositely arranged. According to the injection mold, the reliability is improved.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to an injection mold. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The heated and melted material is injected into the mold and the molded product is obtained after cooling and solidification.

[0003] During the demolding process of the mold, mold reliability is an issue that cannot be ignored. Therefore, how to improve mold reliability is a technical problem that needs to be solved urgently in mold technology. Summary of the invention

[0004] The present application provides an injection mold, which improves the reliability of the injection mold.

[0005] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, an embodiment of the present application provides an injection mold, including a fixed mold, a driving mechanism and a back-stop mechanism; the fixed mold has a first channel and a second channel, the first channel is connected to the second channel, the first channel extends along a first direction, the second channel extends along a second direction, and the first direction is different from the second direction; the back-stop mechanism includes a first core-pulling connection block and a second core-pulling connection block, the driving mechanism is connected to the first core-pulling connection block to drive the first core-pulling connection block to be slidably set in the first channel, and the first core-pulling connection block is connected to the second core-pulling connection block to drive the second core-pulling connection block to be slidably set in the second channel; wherein, the fixed mold is provided with a A first groove connected to the first channel, a back-stop positioning block is arranged in the first groove, a positioning groove facing the first channel is arranged on the back-stop positioning block, a driving block is arranged at the driving end of the driving mechanism, the first core-pulling connecting block has a first slideway and a second slideway, the first slideway extends along a first direction, the second slideway is connected to the first slideway, a sliding block is arranged in the second slideway, and the sliding block has a first end and a second end along the extension direction of the second slideway, the driving block cooperates with the first end, and the driving block and the first end are constructed so that when the driving block moves toward the second core-pulling connecting block and the sliding block is arranged relative to the positioning groove, the driving sliding block moves to make the second end extend into the positioning groove.

[0007] The injection mold proposed in the embodiment of the present application, when the driving block and the positioning groove are arranged relative to each other, the driving block moves in the second slide and makes the second end extend into the positioning groove, thereby realizing the locking of the first core-pulling connecting block, and then realizing the locking of the second core-pulling connecting block, thereby preventing the corresponding core-pulling block from being displaced. When the driving block and the positioning groove are not arranged relative to each other, the moving block cannot slide in the second slide, and the second end cannot be extended into the positioning groove. At this time, the driving block can drive the first core-pulling connecting block to move through the sliding block, which helps to improve the stability of the movement of the first core-pulling connecting block.

[0008] In addition, the cooperation between the positioning groove and the second end not only helps to fix the first core-pulling connecting block, but also allows the stress of the first core-pulling connecting block to be dispersed through the stop positioning block, thereby reducing the impact of the stress of the core-pulling block on the fixed mold, thereby improving the stability and applicability of the mold.

[0009] Optionally, a first inclined surface is provided on the driving block, and a second inclined surface is provided at the first end, and the first inclined surface is fitted with the second inclined surface, so that when the driving block moves toward the second core-pulling connecting block and the sliding block is arranged opposite to the positioning groove, the driving sliding block moves to make the second end extend into the positioning groove.

[0010] In the above scheme, when the driving block moves toward the second core pulling block, the driving block drives the first core pulling connecting block to move in the same direction through the moving block. At this time, the larger contact area between the first inclined surface and the second inclined surface can generate a smooth and stable driving force, ensuring that the second end of the sliding block is pushed into the positioning groove, thereby realizing the locking of the first core pulling connecting block.

[0011] Optionally, the driving block and the first end are configured to drive the sliding block to move so that the second end is out of the positioning groove when the driving block moves away from the second core-pulling connecting block and the second end extends into the positioning groove.

[0012] In the above scheme, the driving block can drive the sliding block to move so that the second end disengages from the positioning groove, thereby unlocking the first core-pulling connecting block, and driving the first core-pulling connecting block to move through the sliding block, so that the first core-pulling connecting block obtains a more stable driving force, thereby improving the stability of the mold opening process.

[0013] Optionally, a third inclined surface is provided on the driving block, and a fourth inclined surface is provided on the first end, and the third inclined surface is fitted with the fourth inclined surface, so that when the driving block moves away from the second core-pulling connecting block and the second end extends into the positioning groove, the driving sliding block moves to make the second end leave the positioning groove.

[0014] In the above scheme, through the fit between the third inclined surface and the fourth inclined surface, when the driving block moves along the first direction, the driving force can be transmitted to the sliding block, and the sliding block can be smoothly driven to move in the second slide, thereby releasing the limitation of the sliding block on the first core-pulling connecting block, making the mold opening process more precise, which helps to improve the integrity and accuracy of the product structure.

[0015] Optionally, the driving block is provided with a first T-shaped slot, the opening of the first T-shaped slot faces the first end, and two opposite side surfaces of the first T-shaped slot in the extension direction of the second slideway are respectively configured as a first inclined surface and a third inclined surface;

[0016] The first end is configured as a first T-block, the first T-block cooperates with the first T-slot, and two opposite side surfaces of the first T-block in the extension direction of the second slideway are respectively configured as a second inclined surface and a fourth inclined surface.

[0017] In the above scheme, the two side surfaces of the first T-slot opposite to each other in the extension direction of the second slideway are respectively constructed as the first inclined surface and the third inclined surface, and the first T-block is also constructed as the second inclined surface and the fourth inclined surface at the corresponding position, which can play a guiding and positioning role. The cooperation of the corresponding inclined surfaces in the first T-slot and the first T-block can also make the movement of the T-block in the T-slot smoother. When the driving block moves, these inclined surfaces can contact each other and generate a driving force, so that the first T-block moves along a predetermined path, thereby achieving a smooth demolding process or stable locking.

[0018] Optionally, there are two of each of the stop block, the second slideway, the sliding block and the first T-slot, and the first end of each sliding block cooperates with the corresponding first T-slot.

[0019] In the above scheme, the two first T-slots cooperate with the first ends of the corresponding sliding blocks to provide precise guiding and positioning functions, ensuring that the sliding blocks can move smoothly and accurately along a predetermined path during movement, thereby improving the accuracy and reliability of the injection mold.

[0020] Optionally, the first core-pulling connection block has a third end, and the second core-pulling connection block has a fourth end matched with the third end;

[0021] The third end is provided with a fifth inclined surface, the fourth end is provided with a sixth inclined surface, and the fifth inclined surface is fitted with the sixth inclined surface, so that when the driving block moves toward the second core-pulling connecting block, the second core-pulling connecting block is driven to move toward the injection molded part.

[0022] In the above scheme, the inclined contact enables the first core pulling connection block and the second core pulling connection block to adapt and cooperate with each other during the movement, avoiding the friction and resistance caused by direct collision, which helps to improve the stability and reliability of the core pulling and resetting process. This smooth movement helps to reduce wear and damage to the mold.

[0023] Optionally, a seventh slope is provided at the third end, and an eighth slope is provided at the fourth end, and the seventh slope fits with the eighth slope, so that when the driving block moves away from the second core-pulling connecting block, the second core-pulling connecting block is driven to move away from the injection molded part.

[0024] In the above scheme, the contact of the inclined surface enables smooth relative displacement between the first core pulling connection block and the second core pulling connection block, which helps to reduce vibration and noise during the core pulling withdrawal process, reduces wear, ensures mold reliability and improves the positioning accuracy of the core pulling blocks.

[0025] Optionally, a second T-shaped slot is provided at the third end, the opening of the second T-shaped slot faces the fourth end, and two opposite side surfaces of the second T-shaped slot in the second direction are respectively configured as a fifth inclined surface and a seventh inclined surface;

[0026] The fourth end is constructed as a second T-block, the second T-block cooperates with the second T-slot, and two opposite side surfaces of the second T-block in the second direction are respectively constructed as a sixth inclined surface and an eighth inclined surface.

[0027] In the above scheme, the cooperation between the second T-slot and the second T-block ensures precise cooperation between the two. The T-shaped structure itself has good stability and guidance, so that during assembly or use, the second T-block can move or position smoothly in the second T-slot, avoiding deviation or shaking, thereby improving the accuracy and stability of the mold or machine.

[0028] Optionally, the second core-pulling connection block includes a main body and a second T-block, a step surface is formed between the second T-block and the main body, and the fourth end has a limiting surface facing the inner wall of the first channel, and the step surface is suitable for cooperating with the limiting surface to limit the movement of the second core-pulling connection block along the second direction.

[0029] In the above scheme, the cooperation between the limiting surface and the step surface can disperse the stress when the core pulling block is locked, play a role in preventing the second core pulling connecting block from retreating, and improve the stability of the core pulling block. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present application;

[0032] Figure 2 This is a schematic diagram of the overall structure from another angle in the embodiment of the present application;

[0033] Figure 3 This is a schematic diagram of the explosion structure at the driving block in the embodiment of the present application;

[0034] Figure 4 This is a schematic diagram of the exploded structure of the driving mechanism in the embodiment of the present application;

[0035] Figure 5 This is a schematic diagram of the exploded structure of the driving mechanism from another angle in the embodiment of the present application.

[0036] [Description of Reference Numerals]

[0037] 100: fixed mold; 110: first channel; 111: first groove; 112: stop block; 112a: positioning groove; 120: second channel;

[0038] 200: driving mechanism; 210: driving block;

[0039] 215: first T-shaped groove; 215a: first inclined surface; 215b: third inclined surface;

[0040] 300: stop withdrawal mechanism;

[0041] 310: first core-pulling connection block; 310a: first outer surface; 310b: limiting surface; 310c: tenth inclined surface; 310d: third end; 311: first slideway; 312: second slideway;

[0042] 313: sliding block; 313a: first end; 313b: second end;

[0043] 314: first T-shaped block; 314a: second inclined surface; 314b: fourth inclined surface;

[0044] 315: second T-slot; 315a: fifth inclined surface; 315b: seventh inclined surface;

[0045] 316: wear-resistant sheet; 317: limit block;

[0046] 320: second core-pulling connection block;

[0047] 321: fourth end; 321c: ninth inclined surface;

[0048] 322: main body; 323: second T-shaped block; 323a: sixth inclined surface; 323b: eighth inclined surface; 324: step surface;

[0049] 400: core pulling block;

[0050] X: first direction; Y: second direction; Z: third direction. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0052] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0053] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0054] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0056] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0057] As plastic parts become more diversified and complex, more and more product structures require cylinder-assisted core pulling. When the injection pressure is greater than the cylinder holding pressure, core pulling will retract, leading to product molding failure. Currently, the mold industry has not been able to solve this problem well.

[0058] At present, in order to prevent the core pulling of the cylinder core pulling mold in the mold industry, it is necessary to design a shovel base structure to backhoe on the cylinder core pulling. This structure has a rigid requirement on the mold opening sequence. The mold must be opened and the shovel base must be removed before the cylinder core pulling can be pulled, resulting in the molding process failing to meet some structural requirements. In addition, the mold cost is relatively high. A slight mistake in the action sequence during operation may cause serious damage to the mold, thereby affecting production efficiency.

[0059] In view of this, in order to improve the reliability of the injection mold, the present application embodiment provides an injection mold, please refer to Figure 1 and Figure 2 , including a fixed mold 100, a driving mechanism 200 and a back-stopping mechanism 300.

[0060] The fixed mold 100 has a first channel 110 and a second channel 120, and the first channel 110 and the second channel 120 are connected. The first channel 110 and the second channel 120 can both accommodate core pulling blocks, thereby providing more and more complex molding paths and improving the applicability of the mold. During the molding process, the mold will be subjected to pressure from the material. Multiple channels can disperse the pressure from the material and reduce the pressure burden of the core pulling block in a single area, thereby improving the reliability of the mold.

[0061] The first channel 110 extends along a first direction X, and the second channel 120 extends along a second direction Y. The first direction X is different from the second direction Y. It can be understood that the first channel 110 allows the core pulling block 400 to move along the first direction X, and the second channel 120 allows the core pulling block 400 to move along the second direction Y.

[0062] In the above scheme, since the first channel 110 and the second channel 120 extend in different directions, the core pulling block in the mold can move in multiple directions, thereby improving the pressure concentration during the molding process, helping to disperse the pressure of the material, and thus helping to improve the stability of the core pulling block during the molding process.

[0063] The stop mechanism 300 includes a first core-pulling connection block 310 and a second core-pulling connection block 320. It can be understood that the first core-pulling connection block 310 and the second core-pulling connection block 320 can both play the role of supporting the core-pulling block 400. At the same time, the first core-pulling connection block 310 and the second core-pulling connection block 320 can be easily disassembled and replaced, which helps to meet more and more complex molding requirements.

[0064] The driving mechanism 200 is connected to the first core-pulling connecting block 310 to drive the first core-pulling connecting block 310 to be movably set in the first channel 110. It can be understood that the driving mechanism 200 can accurately control the movement of the first core-pulling connecting block 310 in the first channel 110. On the one hand, it helps to ensure that the molded part achieves the required dimensional accuracy and shape consistency. On the other hand, it can flexibly adjust the movement of the first core-pulling connecting block 310, thereby improving the applicability of the mold.

[0065] The first core pulling block 400 connecting block is connected to the second core pulling connecting block 320 to drive the second core pulling connecting block 320 to be slidably disposed in the second channel 120. It can be understood that when the driving mechanism 200 drives the first core pulling connecting block 310 to move in the first channel 110, the second core pulling connecting block 320 can slide accordingly in the second channel 120 to realize the synchronous movement of various components inside the mold, thereby realizing a complex molding path and further improving the applicability of the mold.

[0066] By precisely controlling the movement of the first core-pulling connection block 310, the sliding speed and position of the second core-pulling connection block 320 in the second channel 120 can be indirectly controlled to achieve synchronous control of the mold operation. On the one hand, it helps to ensure that the molded parts achieve the required dimensional accuracy and shape consistency. On the other hand, the moving position of the first core-pulling connection block 310 can be flexibly adjusted, thereby improving the applicability of the mold.

[0067] The fixed mold 100 is provided with a first groove 111 connected to the first channel 110. The first groove 111 can be formed together with the first channel 110, which reduces the process difficulty and makes the fixed mold 100 more applicable. A backstop positioning block 112 is provided in the first groove 111. The backstop positioning block 112 can play a role of limiting the position in the first channel 110. It can be understood that there can be multiple ways to install the backstop positioning block 112 and the first groove 111. For example, the backstop positioning block 112 can be connected by bolts or welding, and the present application does not limit this.

[0068] The stop block 112 is provided with a positioning groove 112a facing the first channel 110. The positioning groove 112a can play a positioning role. When any component or structure that can cooperate with the positioning groove 112a passes through the first channel 110 to the positioning groove 112a, it can be limited by the cooperation with the positioning groove 112a, thereby maintaining the position required for molding.

[0069] It is understandable that the positioning effect of the positioning groove 112a of the anti-retraction positioning block 112 in the first channel 110 can change with the position of the anti-retraction positioning block 112 in the first groove 111 in the first channel 110, further improving the applicability of the mold.

[0070] The driving end of the driving mechanism 200 is provided with a driving block 210, which can directly and efficiently transmit the driving force, so that the driving block 210 can move with the movement of the driving end, thereby achieving precise control, helping to ensure the precise movement and positioning of each component inside the mold, and improving the accuracy and quality of the molded parts.

[0071] The first core-pulling connection block 310 has a first slide 311 and a second slide 312. The first slide 311 and the second slide 312 help to disperse the stress of the first core-pulling connection block 310 when it is under load. On the one hand, it enables the first core-pulling connection block 310 to obtain more stable support when sliding, and on the other hand, it can help the first core-pulling connection block 310 disperse the stress it is subjected to when fixed.

[0072] The first slide 311 extends along the first direction X, and the second slide 312 is connected to the first slide 311. It can be understood that the first slide 311 provides the same sliding path as the first channel 110, and the second slide 312 provides an additional stress dispersion path for the first slide 311, thereby further ensuring the stability of the first core-pulling connection block 310.

[0073] A sliding block 313 is provided in the second slide 312. The sliding block 313 can slide in the second slide 312, thereby increasing the movement flexibility of the internal components of the mold. Along the extension direction of the second slide 312, the sliding block 313 has a first end 313a and a second end 313b. It can be understood that the first end 313a and the second end 313b of the sliding block 313 can provide precise positioning points in the extension direction of the second slide 312, thereby facilitating the precise control of the first core-pulling connecting block 310.

[0074] The driving block 210 cooperates with the first end 313a, and the first end 313a can be driven by the driving block 210 to realize direct transmission of driving force. The driving block 210 and the first end 313a are constructed so that when the driving block 210 moves toward the second core-pulling block 400 and the driving block 210 is arranged opposite to the positioning groove 112a, the driving sliding block 313 moves to make the second end 313b extend into the positioning groove 112a.

[0075] In the above scheme, when the driving block 210 is arranged relative to the positioning groove 112a, the driving block 210 moves in the second slide 312 and makes the second end 313b extend into the positioning groove 112a, thereby realizing the locking of the first core-pulling connection block 310, and then realizing the locking of the second core-pulling connection block 320, thereby preventing the corresponding core-pulling block 400 from being displaced. When the driving block 210 and the positioning groove 112a are not arranged relative to each other, the moving block cannot slide in the second slide 312, and the second end 313b cannot be extended into the positioning groove 112a. At this time, the driving block 210 can drive the first core-pulling connection block 310 to move through the sliding block 313, which helps to improve the stability of the movement of the first core-pulling connection block 310.

[0076] In addition, the cooperation between the positioning groove 112a and the second end 313b not only helps to fix the first core-pulling connecting block 310, but also allows the stress of the first core-pulling connecting block 310 to be dispersed through the stop positioning block 112, thereby reducing the influence of the stress of the core-pulling block 400 on the fixed mold 100, thereby improving the stability and applicability of the mold.

[0077] In other embodiments, please refer to Figure 3 A first inclined surface 215a is provided on the driving block 210, and a second inclined surface 314a is provided on the first end 313a. It can be understood that the first inclined surface 215a can change the force direction of the driving block 210, and the second inclined surface 314a can change the force direction of the first end 313a.

[0078] The first inclined surface 215a is fitted with the second inclined surface 314a, so that when the driving block 210 moves toward the second core-pulling connecting block 320 and the sliding block 313 is disposed opposite to the positioning groove 112a, the sliding block 313 is driven to move so that the second end 313b extends into the positioning groove 112a.

[0079] In the above scheme, when the driving block 210 moves toward the second core pulling block 400, the driving block 210 drives the first core pulling connecting block 310 to move in the same direction through the moving block. At this time, the larger contact area between the first inclined surface 215a and the second inclined surface 314a can generate a smooth and stable driving force, ensuring that the second end 313b of the sliding block 313 is pushed into the positioning groove 112a, thereby realizing the locking of the first core pulling connecting block 310.

[0080] In other embodiments, please refer to Figure 3 The driving block 210 and the first end 313a are configured such that when the driving block 210 moves away from the second core-pulling block 400 and the second end 313b extends into the positioning groove 112a, the driving sliding block 313 moves to disengage the second end 313b from the positioning groove 112a.

[0081] In the above scheme, the driving block 210 can drive the sliding block 313 to move so that the second end 313b disengages from the positioning groove 112a, thereby unlocking the first core-pulling connecting block 310, and driving the first core-pulling connecting block 310 to move through the sliding block 313, so that the first core-pulling connecting block 310 obtains a more stable driving force, thereby improving the stability of the mold opening process.

[0082] In other embodiments, please refer to Figure 3 The driving block 210 is provided with a third inclined surface 215b, and the first end 313a is provided with a fourth inclined surface 314b. It can be understood that the third inclined surface 215b can change the force direction of the driving block 210, and the fourth inclined surface 314b can change the force direction of the first end 313a.

[0083] The third inclined surface 215b is fitted with the fourth inclined surface 314b, so that when the driving block 210 moves away from the second core-pulling connecting block 320 and the second end 313b extends into the positioning groove 112a, the sliding block 313 is driven to move so that the second end 313b is separated from the positioning groove 112a.

[0084] In the above scheme, through the fit between the third inclined surface 215b and the fourth inclined surface 314b, when the driving block 210 moves along the first direction X, the driving force can be transmitted to the sliding block 313, and the sliding block 313 can be smoothly driven to move in the second slide 312, thereby releasing the limitation of the sliding block 313 on the first core-pulling connecting block 310, making the mold opening process more precise, which helps to improve the integrity and accuracy of the product structure.

[0085] The contact of the inclined surface enables a smooth relative displacement between the driving block 210 and the sliding block 313 , which helps to reduce vibration and noise during the core pulling and withdrawal process, reduces wear, ensures mold reliability and improves the positioning accuracy of the core pulling block 400 .

[0086] In other embodiments, please refer to Figure 3 The driving block 210 is provided with a first T-slot 215, and the opening of the first T-slot 215 faces the first end 313a. It can be understood that the driving block 210 can be connected to the first end 313a through the T-slot and drive the first end 313a to move.

[0087] The first T-slot 215 is respectively constructed as a first inclined surface 215a and a third inclined surface 215b on two opposite sides of the second slideway 312 in the extension direction. It can be understood that the driving block 210 can be connected to the first end 313a through the first inclined surface 215a and the third inclined surface 215b and drive the first end 313a to move.

[0088] The first end 313a is constructed as a first T-block 314, and the first T-block 314 cooperates with the first T-slot 215. It can be understood that the cooperation between the first T-block 314 and the first T-slot 215 can make the driving block 210 and the sliding block 313 tightly connected together, which helps the sliding block 313 to receive sufficient driving force, thereby ensuring the accurate positioning of the first core-pulling connecting block 310.

[0089] Two opposite side surfaces of the first T-block 314 in the extending direction of the second slideway 312 are respectively configured as a second inclined surface 314 a and a fourth inclined surface 314 b .

[0090] In the above scheme, the two opposite side surfaces of the first T-slot 215 in the extension direction of the second slide 312 are respectively constructed as the first inclined surface 215a and the third inclined surface 215b, and the first T-block 314 is also constructed as the second inclined surface 314a and the fourth inclined surface 314b at the corresponding position, so that the first T-block 314 can more easily find the correct position when inserted into the first T-slot 215, thereby playing a guiding and positioning role.

[0091] The cooperation between the corresponding inclined surfaces in the first T-slot 215 and the first T-block 314 can also make the T-block move more smoothly in the T-slot. When the driving block 210 moves, these inclined surfaces can contact each other and generate a driving force, so that the first T-block 314 moves along a predetermined path, thereby achieving a smooth demolding process or stable locking.

[0092] In other embodiments, please refer to Figure 3 There are two stop blocks 112, two second slideways 312, two sliding blocks 313 and two first T-slots 215. It can be understood that the two stop blocks 112 can play a key positioning and supporting role, which can further ensure that the first core-pulling connecting block 310 can remain stable when subjected to force, and prevent deformation or displacement caused by uneven or excessive force.

[0093] The two second slideways 312 can enable the sliding blocks 313 therein to play a more stable limiting or driving role on the first core-pulling connecting block 310, thereby further improving the stability and movement stability of the first core-pulling connecting block 310 during the demolding process.

[0094] The first end 313 a of each sliding block 313 is matched with the corresponding first T-slot 215 .

[0095] In the above scheme, the two first T-slots 215 cooperate with the first end 313a of the corresponding sliding block 313 to provide precise guiding and positioning functions, ensuring that the sliding block 313 can move smoothly and accurately along a predetermined path during movement, thereby improving the accuracy and reliability of the injection mold.

[0096] In other embodiments, please refer to Figure 4 The first core-pulling connection block 310 has a third end 310d, and the second core-pulling connection block 320 has a fourth end 321 that cooperates with the third end 310d; it can be understood that the first core-pulling connection block 310 can drive the movement of the second core-pulling connection block 320 through the cooperation of the third end 310d and the fourth end 321, thereby helping the core-pulling block 400 to reach a predetermined position and ensure the accuracy of the mold.

[0097] The third end 310d is provided with a fifth inclined surface 315a, and the fourth end 321 is provided with a sixth inclined surface 323a. The fifth inclined surface 315a is fitted with the sixth inclined surface 323a to drive the second core pulling connection block 320 to move toward the injection molded part when the driving block 210 moves toward the second core pulling connection block 320.

[0098] In the above scheme, when the driving block 210 moves toward the second core pulling connection block 320, the inclined contact can transmit the driving force to drive the second core pulling connection block 320 to move toward the injection molded part, thereby completing the core pulling reset and ensuring the accuracy and reliability of the core pulling block 400 reset process.

[0099] In addition, the inclined contact enables the first core pulling connection block 310 and the second core pulling connection block 320 to adapt and cooperate with each other during the movement, avoiding the friction and resistance caused by direct collision, and helping to improve the stability and reliability of the core pulling and resetting process. This smooth movement helps to reduce wear and damage to the mold, and the operator can more easily control the mold opening and core pulling process, reducing production time and improving production efficiency.

[0100] In other embodiments, please refer to Figure 4 The third end 310d is provided with a second T-shaped slot 315, the opening of the second T-shaped slot 315 faces the fourth end 321, and two opposite side surfaces of the second T-shaped slot 315 in the second direction Y are respectively configured as a fifth inclined surface 315a and a seventh inclined surface 315b;

[0101] The fourth end 321 is configured as a second T-block 323 , which cooperates with the second T-slot 315 , and two opposite side surfaces of the second T-block 323 in the second direction Y are respectively configured as a sixth inclined surface 323 a and an eighth inclined surface 323 b .

[0102] In the above scheme, the cooperation between the second T-slot 315 and the second T-block 323 ensures precise cooperation between the two. The T-shaped structure itself has good stability and guidance, so that during assembly or use, the second T-block 323 can be smoothly moved or positioned in the second T-slot 315, avoiding deviation or shaking, thereby improving the accuracy and stability of the mold or machine.

[0103] In other embodiments, please refer to Figure 4 and Figure 5 The second core-pulling connection block 320 includes a main body 322 and a second T-block 323, a step surface 324 is formed between the second T-block 323 and the main body 322, and the fourth end 321 has a limiting surface 310b facing the inner wall of the first channel 110, and the step surface 324 is suitable for cooperating with the limiting surface 310b to limit the movement of the second core-pulling connection block along the second direction.

[0104] In the above solution, the cooperation between the limiting surface 310 b and the step surface 324 can disperse the stress when the core pulling block 400 is locked, thereby preventing the second core pulling connecting block 320 from retreating and improving the stability of the core pulling block 400 .

[0105] In a specific embodiment, please refer to Figure 4 The first core-pulling connection block 310 has a first outer surface 310a facing the inner wall of the first channel 110, and the first outer surface 310a is provided with a wear-resistant sheet 316. It can be understood that the wear-resistant sheet 316 can improve the friction between the first core-pulling connection block 310 and the first channel 110, thereby improving the service life.

[0106] The first core-pulling connection block 310 is provided with a limit block 317 facing the inner wall of the first channel 110. The limit block 317 cooperates with the inner wall of the first channel 110 to limit the movement range of the first core-pulling connection block 310 in the first direction X, thereby ensuring that the core-pulling action is performed within a predetermined range, avoiding mold damage or product defects caused by excessive movement.

[0107] By limiting the movement range of the first core-pulling connecting block 310 , the stability of the mold during the core-pulling process is significantly improved, thereby improving the reliability of the mold.

[0108] Please refer to Figure 5 A side surface of the first core-pulling connecting block 310 opposite to the third direction Z is constructed as a limiting surface 310b, the limiting surface 310b faces the inner wall of the first channel 110 and is parallel to the first direction X, the third direction Z, the first direction X and the second direction Y intersect each other, and the third direction Z is perpendicular to the first direction X.

[0109] Along the third direction Z, the step surface 324 is arranged opposite to the limiting surface 310b. When the core pulling block 400 squeezes the second core pulling connection block 320 along the second direction Y, the step surface 324 and the limiting surface 310b can disperse the stress along the first direction X, so that the second core pulling connection block 320 is limited by the first core pulling connection block 310.

[0110] A side surface of the first core-pulling connecting block 310 opposite to the second direction Y is constructed as the tenth inclined surface 310c, and a side surface of the main body 322 opposite to the second direction Y is constructed as the ninth inclined surface 321c, and the ninth inclined surface 321c cooperates with the tenth inclined surface 310c. It can be understood that the cooperation between the ninth inclined surface 321c and the tenth inclined surface 310c can ensure the smooth movement of the first core-pulling connecting block 310 and the second core-pulling connecting block 320, thereby improving the stability during the core-pulling resetting and pushing out process.

[0111] The following is a brief description of the core pulling and exit process of the injection mold.

[0112] The oil cylinder pulls the connecting block to move along the first direction X, and the connecting block drives the sliding block 313 to move inwardly to disengage from the positioning groove 112a through the first T-slot 215, releasing the lock, and then the connecting block drives the first core-pulling connecting block 310 to move along the first direction X; the first core-pulling connecting block 310 moves inwardly to disengage from the positioning groove 112a through the second T-slot 215.

[0113] The groove drives the second core-pulling connection block 320 to move; the second core-pulling connection block 320 drives the core-pulling block 400 to move to realize the core-pulling and exiting action.

[0114] The following is a brief description of the core pulling and resetting process of the injection mold.

[0115] The oil cylinder pushes the driving block 210 to move toward the second core-pulling connecting block 320, and the driving block 210 pushes the sliding block 313 to move toward the second core-pulling connecting block 320. At the same time, the sliding block 313 pushes the first core-pulling connecting block 310 to move toward the second core-pulling connecting block 320. The first core-pulling connecting block 310 pushes the second core-pulling connecting block 320 to move through the ninth inclined surface 321c and the tenth inclined surface 310c, and then the second core-pulling connecting block 320 pushes the core-pulling block 400 to move along the second direction Y.

[0116] When the core-pulling block 400 is reset to its original position: the sliding block 313 just slides to the position of the positioning groove 112a, and is pushed outward by the driving block 210 and inserted into the positioning groove 112a, completing self-locking. At the same time, the limiting surface 310b of the first core-pulling connecting block 310 contacts the step surface 324 of the second core-pulling connecting block 320, also completing self-locking. The limiting block 317 also hits the fixed mold 100 at the same time, playing a limiting role. When the core-pulling block 400 is subjected to injection pressure, the above two self-locking effects can prevent the core-pulling block 400 from retreating.

[0117] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0118] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0119] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0120] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An injection mold, characterized in that: include: A fixed mold, comprising a first channel and a second channel, wherein the first channel is connected to the second channel, the first channel extends along a first direction, the second channel extends along a second direction, and the first direction is different from the second direction; A driving mechanism and a stop mechanism, wherein the stop mechanism includes a first core-pulling connection block and a second core-pulling connection block, wherein the driving mechanism is connected to the first core-pulling connection block to drive the first core-pulling connection block to be slidably disposed in the first channel, and the first core-pulling connection block is connected to the second core-pulling connection block to drive the second core-pulling connection block to be slidably disposed in the second channel; In which, the fixed mold is provided with a first groove connected with the first channel, the first groove is provided with a back-stop positioning block, the back-stop positioning block is provided with a positioning groove facing the first channel, the driving end of the driving mechanism is provided with a driving block, the first core-pulling connecting block has a first slide and a second slide, the first slide extends along the first direction, the second slide is connected with the first slide, a sliding block is provided in the second slide, and the sliding block has a first end and a second end along the extension direction of the second slide, the driving block cooperates with the first end, and the driving block and the first end are constructed so that when the driving block moves toward the second core-pulling connecting block and the sliding block is arranged relative to the positioning groove, the sliding block is driven to move so that the second end extends into the positioning groove.

2. The injection mold according to claim 1, characterized in that: The driving block is provided with a first inclined surface, and the first end is provided with a second inclined surface, and the first inclined surface is in contact with the second inclined surface, so that when the driving block moves toward the second core-pulling connecting block and the sliding block is arranged opposite to the positioning groove, the sliding block is driven to move so that the second end extends into the positioning groove.

3. The injection mold according to claim 2, characterized in that: The driving block and the first end are configured to drive the sliding block to move so that the second end is separated from the positioning groove when the driving block moves away from the second core-pulling connecting block and the second end extends into the positioning groove.

4. The injection mold according to claim 3, characterized in that: A third inclined surface is provided on the driving block, and a fourth inclined surface is provided on the first end. The third inclined surface is in contact with the fourth inclined surface, so that when the driving block moves away from the second core-pulling connecting block and the second end extends into the positioning groove, the sliding block is driven to move so that the second end is disengaged from the positioning groove.

5. The injection mold according to claim 4, characterized in that: The driving block is provided with a first T-shaped slot, the opening of the first T-shaped slot faces the first end, and two opposite side surfaces of the first T-shaped slot in the extending direction of the second slideway are respectively configured as the first inclined surface and the third inclined surface; The first end is configured as a first T-block, the first T-block cooperates with the first T-slot, and two opposite side surfaces of the first T-block in the extending direction of the second slideway are respectively configured as the second inclined surface and the fourth inclined surface.

6. The injection mold according to claim 5, characterized in that: There are two of each of the stop block, the second slideway, the sliding block and the first T-slot, and the first end of each of the sliding blocks cooperates with the corresponding first T-slot.

7. The injection mold according to claim 1, characterized in that: The first core-pulling connection block has a third end, and the second core-pulling connection block has a fourth end matched with the third end; The third end is provided with a fifth inclined surface, and the fourth end is provided with a sixth inclined surface, and the fifth inclined surface is in contact with the sixth inclined surface, so that when the driving block moves toward the second core-pulling connecting block, the second core-pulling connecting block is driven to move toward the injection molded part.

8. The injection mold according to claim 7, characterized in that: The third end is provided with a seventh inclined surface, and the fourth end is provided with an eighth inclined surface, and the seventh inclined surface is in contact with the eighth inclined surface, so as to drive the second core-pulling connecting block to move away from the injection molded part when the driving block moves away from the second core-pulling connecting block.

9. The injection mold according to claim 8, characterized in that: The third end is provided with a second T-shaped slot, the opening of the second T-shaped slot faces the fourth end, and two opposite side surfaces of the second T-shaped slot in the second direction are respectively configured as the fifth inclined surface and the seventh inclined surface; The fourth end is configured as a second T-block, the second T-block cooperates with the second T-slot, and two opposite side surfaces of the second T-block in the second direction are respectively configured as the sixth inclined surface and the eighth inclined surface.

10. The injection mold according to claim 9, characterized in that: The second core-pulling connection block includes a main body and a second T-block, a step surface is formed between the second T-block and the main body, and the fourth end has a limiting surface facing the inner wall of the first channel, and the step surface is suitable for cooperating with the limiting surface to limit the movement of the second core-pulling connection block along the second direction.

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