Discharging and supporting structure of injection molding equipment

Abstract

The utility model discloses a discharging and supporting structure of injection molding equipment, which comprises a rack, a driving mechanism for driving a mold to act and a discharging channel for discharging below a mold closing position, and the bottom of the driving mechanism is provided with a telescopically arranged supporting assembly; a material blocking part is arranged on the side, close to the discharging channel, of the discharging channel. The material supporting assembly moving along with the driving mechanism achieves two functions that firstly, in the falling process of a product, the product firstly falls onto the material supporting assembly and then enters the discharging channel, and due to the fact that the product is not completely cooled in place after injection molding and is relatively soft, if the falling height of the product is large, the product cannot fall into the discharging channel; the defective rate is increased due to product deformation caused by falling; and secondly, after being blocked by the material supporting assembly, the product continues for a period of time, and the product can be further cooled in the period of time, so that the possibility of deformation caused by subsequent movement of the product is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding equipment, and in particular to a material discharging and supporting structure of an injection molding equipment. Background Art

[0002] Injection molding is a molding method that combines injection and molding. Its advantages include high production speed, high efficiency, automated operation, a wide variety of designs and colors, shapes ranging from simple to complex, and sizes ranging from large to small. Furthermore, it provides precise product dimensions, is easily updated, and can produce complex shapes. Injection molding is suitable for mass production and the molding of complex products.

[0003] After the existing injection molding equipment forms the product, in order to quickly unload the product, a direct unloading method is often adopted. When the product falls, it is not fully cooled and collides with the falling channel during the fall, which easily causes deformation, thereby easily producing defective products. Utility Model Content

[0004] The purpose of this application is to provide a material unloading and supporting structure for injection molding equipment.

[0005] To achieve the above objectives, the technical solution adopted in this application is: a material unloading and supporting structure of an injection molding equipment, comprising a frame, a driving mechanism for driving the mold to move, and a material unloading channel for unloading below the mold closing position, a retractable material supporting assembly is provided at the bottom of the driving mechanism, and a material blocking portion is provided on the side of the material unloading channel close to the material unloading channel, when the mold is closed, the material supporting assembly moves with the driving mechanism to abut against the frame and shrinks during the process, and a part of the material supporting assembly is located directly above the material unloading channel when the mold is closed; when demolding, the material falls into the material supporting assembly, the material supporting assembly first stretches and becomes longer, and then moves back to the initial position. During the process, the material interacts with the material blocking portion and finally falls into the material unloading channel.

[0006] As a preferred embodiment, the material supporting assembly includes a telescopic assembly and a tray, the telescopic assembly is fixed to the driving mechanism and moves with it, and the tray is fixedly connected to the telescopic assembly; when the mold is closed, the tray moves to directly above the discharge channel; before the driving mechanism drives the mold to the closing position, the tray moves with the driving mechanism to abut against the frame, and when the driving mechanism continues to drive the mold to the closing position, the telescopic assembly contracts; when demolding, the driving mechanism returns, and the material falls above the tray, the telescopic assembly first extends to its longest distance, and then the tray returns, and the material falls into the discharge channel.

[0007] Further preferably, the telescopic assembly includes an inner rod fixedly connected to the tray and an outer rod for moving the inner rod within a set range; two limiting parts are provided in the inner cavity of the outer rod, the inner rod includes a locking part, the inner rod is slidably provided in the inner cavity of the outer rod, and the locking part is limited between the two limiting parts.

[0008] As a preference, the inner rod and the outer rod are both made of metal, and the connecting surfaces therebetween are both configured as smooth planes.

[0009] As a preference, the top of the tray is provided with an anti-slip texture of rubber material, and the anti-slip texture protrudes from the top surface of the tray.

[0010] Preferably, the material discharge channel comprises a vertical section for receiving materials and an inclined guide section, and the top of the vertical section is opposite to the bottom of the tray when the mold is closed.

[0011] Further preferably, the inclination angle of the guide section ranges from 10° to 60°.

[0012] Preferably, the material stopping portion includes at least two contact points against the material, and the material stopping portion is arranged in the middle position of the material discharge channel, and the length of the material stopping portion is not less than one third of the length of the material discharge channel.

[0013] As another preferred embodiment, the material support assembly includes a first plate body and a second plate body, a limiting guide rail is provided on the bottom surface of the first plate body, and the second plate body is slidably provided on the limiting guide rail. At the normal operating speed of the driving mechanism, when the driving mechanism pulls the first plate body and the second plate body in the retracted state, the first plate body and the second plate body are first expanded to the extreme position and then move.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The supporting components that move with the driving mechanism have two functions: first, during the falling process of the product, it first falls on the supporting components and then enters the unloading channel. Since the product does not cool completely after injection molding, the product is relatively soft. At this time, if the product falls from a high height, it is easy for the product to deform due to the fall, thereby increasing the defective rate; second, the supporting components continue to block the product for a period of time, during which time the product can be further cooled, thereby reducing the possibility of deformation caused by subsequent movement of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle support component.

[0018] Figure 3 It is a status diagram of the material support component of the drive mechanism during the mold closing stroke.

[0019] Figure 4 It is a status diagram of the support component of the driving mechanism during the demoulding stroke.

[0020] In the figure: 1. Driving mechanism; 2. Moving mold mounting plate; 31. Guide section; 32. Vertical section; 4. Material support assembly; 5. Outer rod; 6. Tray; 7. Anti-slip texture; 8. Limiting part; 9. Inner rod; 10. Material stop; 11. Contact point; 12. Frame; 13. Product. DETAILED DESCRIPTION

[0021] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0024] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0025] Example:

[0026] Reference Figures 1 to 4 This embodiment provides a material unloading and supporting structure for an injection molding device, including a frame 12 ( Figure 3The frame 12 shown is only a small part of the frame), a driving mechanism 1 for driving the mold movement and a material discharge channel for discharging material below the mold closing position. The bottom of the driving mechanism 1 is provided with a retractable support assembly 4, which is referred to in this embodiment. Figure 1 The bottom of the component where the figure mark is located is installed, and a stopper 10 is provided on the side of the discharge channel near the discharge channel. When the mold is closed, the support assembly 4 moves with the drive mechanism 1 to abut against the frame 12 and shrinks during the process. When the mold is closed, a part of the support assembly 4 is located directly above the discharge channel; when the mold is demoulded, the material falls into the support assembly 4, the support assembly 4 first stretches and lengthens, and then moves back to the initial position. During the process, the material interacts with the stopper 10 and finally falls into the discharge channel. It should be understood that the shrinkage of the support assembly 4 during the mold closing process can occur before the support assembly 4 abuts against the frame 12, or after the support assembly 4 abuts against the frame 12. This is related to the size of the force generated by the drive mechanism 1 on the support assembly 4 during operation and the force required for the support assembly 4 to expand and contract. If the drive mechanism 1 runs at a faster speed, it will accelerate the support assembly 4 from a standstill (in fact, the drive mechanism 1 itself also accelerates from a standstill to the working speed, and may maintain a uniform speed or continue to accelerate, or decelerate. This can be adjusted according to the actual equipment settings. (The force applied during this acceleration process is relatively large, so the support assembly 4 completes its contraction before it abuts against the frame 12. However, under normal circumstances, the driving mechanism 1 does not operate very fast during injection molding. Therefore, generally speaking, the support assembly 4 abuts against the frame 12 first, but the mold closing is not yet completed. If the driving mechanism 1 continues to operate, the support assembly 4 will begin to contract. After the injection molding is completed, the driving mechanism 1 begins to reset. After resetting until the product 13 is demoulded and falls into the support assembly 4, the driving mechanism 1 returns to normal operation. At this time, there are two possible situations in which the product 13 returns:

[0027] (1) The supporting assembly 4 and the product 13 move as a whole along with the driving mechanism 1 first. Since the product 13 is at the top of the supporting assembly 4, when the product 13 moves to contact the material stopper 10, the supporting assembly 4 will first extend the originally contracted part. When the supporting assembly 4 can no longer be extended, the driving mechanism 1 continues to move. At this time, the supporting assembly 4 will completely pass through the material stopper 10, and the corresponding product 13 will fall into the material discharge channel for discharge; (2) Since the force required for the internal expansion and contraction of the supporting assembly 4 is relatively small, before the product 13 moves, the supporting assembly 4 will first extend the originally contracted part until it can no longer be extended. The material moves along with the supporting assembly 4 until the supporting assembly 4 completely passes through the material stopper 10, and the product 13 falls into the material discharge channel. Regardless of the above situation, the support component 4 that moves with the driving mechanism realizes two functions: first, during the falling process of the product 13, it first falls on the support component 4 and then enters the unloading channel. Since the product 13 is not completely cooled after cooling after injection molding, the product 13 is relatively soft. At this time, if the product 13 falls from a high height, it is easy for the product 13 to be deformed due to the fall, thereby increasing the defective rate; second, the support component 4 continues to block the product 13 for a period of time. During this period, the product 13 can be further cooled, thereby reducing the possibility of deformation caused by subsequent movement of the product 13.

[0028] It is worth mentioning that the driving mechanism 1 drives the mold to be clamped, that is, drives Figure 1 The movable mold mounting plate 2 shown approaches the fixed mold on the right side and completes the mold closing.

[0029] A preferred embodiment of the material support assembly 4 is proposed below: the material support assembly 4 includes a telescopic assembly and a tray 6, the telescopic assembly is fixed to the drive mechanism 1 and moves with it, and the tray 6 is fixedly connected to the telescopic assembly; when the mold is closed, the tray 6 moves to the top of the discharge channel; before the drive mechanism 1 drives the mold to the mold closing position, the tray 6 moves with the drive mechanism 1 to abut against the frame 12, and when the drive mechanism 1 continues to drive the mold to the mold closing position, the telescopic assembly contracts; when demolding, the drive mechanism 1 returns, and the material falls onto the top of the tray 6, and the telescopic assembly first extends to its longest distance (at this time, the internal friction of the telescopic assembly needs to be smaller), and then the tray 6 returns, and the material falls into the discharge channel. The material support assembly of this embodiment can be referred to Figure 3 、 Figure 4 The process changes, such as Figure 3(a) is the initial state of the support assembly 4. In this state, the inner rod 9 is located at the limit part 8 on the right side. It is in an extended state. As the mold closing stroke of the driving mechanism 1 proceeds, it gradually changes to (b). At this time, the support assembly 4 moves as a whole, and the telescopic assembly composed of the inner rod 9 and the outer rod 5 hardly changes (i.e., does not shrink). At this time, the right side of the tray 6 has abutted against a part of the frame 12. Then the driving mechanism 1 continues to run and gradually changes to the state of (c). It can be seen that due to the abutment of the tray 6, the outer rod 5 and the inner rod 9 have moved relative to each other, i.e., they have shrunk. After this process is completed, the mold closing is completed, and after the injection is completed, the product 13 falls on the tray 6. At this time, the driving mechanism 1 starts the demoulding stroke. The demoulding stroke can be referred to Figure 4 The changes in the process are as follows: first, since the product 13 is pressed on the tray, the driving mechanism 1 moves to extend the originally contracted inner rod 9 and outer rod 5 until the state (e), and then continues to move the inner rod 9 and abuts against the limiting part 8 on the right, and moves with the product 13 until the state (f), at which time the driving mechanism 1 continues to move, and the product 13 is blocked by the blocking part 11, and finally falls into the vertical section 32, and then the unloading is completed.

[0030] The telescopic assembly includes an inner rod 9 fixedly connected to the tray 6 and an outer rod 5 for moving the inner rod 9 within a set range. Two limiters 8 are provided in the inner cavity of the outer rod 5. The inner rod 9 includes a locking portion. The inner rod 9 slides within the inner cavity of the outer rod 5, and the locking portion is constrained between the two limiters 8. The two limiters 8 allow the inner rod 9 to slide stably within the specified range.

[0031] Preferably, the inner rod 9 and the outer rod 5 are both made of metal, and the interface between the two is set to a smooth plane, so that the friction between the inner rod 9 and the outer rod 5 is small, so that during the demolding stroke of the driving mechanism 1, the telescopic component can be extended first, and then the material moves to the blocking part 10 and then unloaded.

[0032] In order to ensure the friction between the tray 6 and the product 13, the top of the tray 6 is provided with a rubber anti-skid texture 7, which protrudes from the top surface of the tray 6. The anti-skid texture 7 is set to rubber material, so that the impact caused by the contact between the product 13 and the anti-skid texture 7 can also be reduced.

[0033] The material discharge channel includes a vertical section 32 for receiving materials and an inclined guide section 31. The top of the vertical section 32 is opposite to the bottom of the tray 6 when the mold is closed. When the product 13 falls, it first enters the vertical section 32, then falls obliquely through the guide section 31 and is discharged.

[0034] In order to ensure the guiding effect, the inclination angle of the guide section 31 in this embodiment ranges from 10° to 60°. If the inclination angle is too small, it is easy to cause material jamming. If the inclination angle is too large, the initial velocity of the product 13 when it is discharged is large and difficult to control.

[0035] To ensure that the stopper 10 contacts the product 13 and that the product 13 is stably prevented from falling, the stopper 10 includes at least two contact points 11 that contact the material, and is positioned in the middle of the material discharge channel. The length of the stopper 10 is no less than one-third of the length of the material discharge channel. If the stopper 10 is too short, the product 13 may rotate against the stopper 10, and the stopper 10 may not be able to effectively block the product 13, which may cause material discharge failure.

[0036] Example 2:

[0037] This embodiment proposes another optional support assembly 4, which includes a first plate and a second plate. The bottom surface of the first plate is provided with a limit guide rail, and the second plate is slidably provided on the limit guide rail. At the normal operating speed of the drive mechanism 1, when the drive mechanism 1 pulls the first and second plates in the retracted state, the first and second plates are first expanded to the limit position before moving. The first and second plates are still slidably installed relative to each other, similar to the principle of the previous method using a telescopic assembly and a tray 6, but the technical solution is slightly different.

[0038] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A material unloading and supporting structure for an injection molding device, comprising a frame, a driving mechanism for driving the mold, and a material unloading channel for unloading material below the mold closing position, characterized in that: A retractable supporting assembly is provided at the bottom of the driving mechanism, and a material blocking portion is provided on the side of the material discharge channel close to the material discharge channel. When the mold is closed, the supporting assembly moves with the driving mechanism to abut against the frame and shrinks during the process. When the mold is closed, a part of the supporting assembly is located directly above the material discharge channel; when demolding, the material falls into the supporting assembly, the supporting assembly first stretches and becomes longer, and then moves back to the initial position. During the process, the material interacts with the material blocking portion and finally falls into the material discharge channel.

2. The material discharging and supporting structure of the injection molding equipment according to claim 1, characterized in that: The material supporting assembly includes a telescopic assembly and a tray. The telescopic assembly is fixed to the driving mechanism and moves therewith. The tray is fixedly connected to the telescopic assembly. When the mold is closed, the tray moves to the top of the material discharge channel.

3. The material discharging and supporting structure of the injection molding equipment according to claim 2, characterized in that: The telescopic assembly includes an inner rod fixedly connected to the tray and an outer rod for moving the inner rod within a set range; two limiting parts are provided in the inner cavity of the outer rod, and the inner rod includes a locking part. The inner rod is slidably provided in the inner cavity of the outer rod, and the locking part is restricted between the two limiting parts.

4. The material discharging and supporting structure of the injection molding equipment according to claim 3, characterized in that: The inner rod and the outer rod are both made of metal, and the connecting surfaces between the two are both set to be smooth planes.

5. The material discharging and supporting structure of the injection molding equipment according to claim 3, characterized in that: The top of the tray is provided with an anti-skid texture made of rubber material, and the anti-skid texture protrudes from the top surface of the tray.

6. The material discharging and supporting structure of the injection molding equipment according to claim 2, characterized in that: The material discharge channel includes a vertical section for receiving materials and an inclined guide section, and the top of the vertical section is opposite to the bottom of the tray when the mold is closed.

7. The material discharging and supporting structure of the injection molding equipment according to claim 6, characterized in that: The inclination angle of the guide section ranges from 10° to 60°.

8. The material discharging and supporting structure of the injection molding equipment according to claim 1, characterized in that: The material blocking portion includes at least two contact points against the material, and the material blocking portion is arranged in the middle position of the material discharge channel. The length of the material blocking portion is not less than one third of the length of the material discharge channel.

9. The material discharging and supporting structure of the injection molding equipment according to claim 1, characterized in that: The material supporting assembly includes a first plate body and a second plate body. A limiting guide rail is provided on the bottom surface of the first plate body, and the second plate body is slidably provided on the limiting guide rail. Under the normal operating speed of the driving mechanism, when the driving mechanism pulls the first plate body and the second plate body in the retracted state, the first plate body and the second plate body are first expanded to the extreme position and then move.

Images