In-mold part taking device of injection molding machine

Abstract

The utility model relates to the technical field of injection molding, and discloses an in-mold part taking device of an injection molding machine, which comprises a lifting platform and a loading tray which horizontally moves on the lifting platform and is used for receiving demolded parts, the lifting platform is provided with a horizontal driving mechanism for driving the loading tray to do reciprocating translation outside the injection molding machine protection door and below the undemolded parts, the part taking device receives the parts falling after demolding of the mold and conveys the parts out of the injection molding machine, workers do not need to enter the injection molding machine to take the parts, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an in-mold taking device for an injection molding machine. Background Art

[0002] Most of the existing large plastic parts (greater than 100Kg) are formed by injection molding by large injection molding machines. The structure of large injection molding machines can refer to Figure 1 The injection molding machine 1 controls the movable mold plate 3 to approach the fixed mold plate 4, so that the mold 5 on the movable mold plate 3 and the fixed mold plate 4 cooperate to form an injection cavity, and the injection part injects the raw material into the injection cavity, and the injection molding is completed after cooling.

[0003] However, when a large part is injection molded by the large injection molding machine 1 , it is difficult to remove the large part from the injection molding machine 1 after demoulding due to its own heavy weight.

[0004] There are two existing solutions. One is that after the injection molding of the large parts is completed, the workers open the injection molding machine protection door 2, enter the injection molding machine 1, tie the lifting rope to the large parts, and then use the crane in the workshop to lift the large parts out of the injection molding machine 1; the other is to install a simple lifting platform under the mold 5 to receive the large parts after demolding, and at least two people open the injection molding machine protection door 2, enter the injection molding machine 1 and pull the large parts out.

[0005] The above two solutions require workers to enter the injection molding machine 1 to operate each time when taking out the parts, which poses a safety hazard. Utility Model Content

[0006] The utility model aims at the disadvantage of the prior art that workers need to enter the interior of the injection molding machine to operate, which has potential safety hazards. The utility model provides an injection molding machine mold removal device which can realize large parts removal without workers entering the interior of the injection molding machine.

[0007] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0008] The invention discloses an in-mold part removal device for an injection molding machine, comprising a lifting platform and a loading tray which moves horizontally on the lifting platform and is used to receive demoulded parts. The lifting platform is provided with a horizontal driving mechanism which drives the loading tray to reciprocate outside a protective door of the injection molding machine and below un-demolded parts.

[0009] By adopting the above scheme, when taking out the parts, the mold is opened, and the parts fall on the loading tray after demolding. The lifting platform drives the loading tray to rise, and the horizontal driving mechanism controls the movement of the loading tray to transfer the parts placed thereon to the outside of the protective door of the injection molding machine. There is no need for workers to enter the injection molding machine, thereby improving safety. After the parts are taken away, the horizontal driving mechanism controls the loading tray to move in the opposite direction to under the mold of the fixed template, and the lifting platform controls the loading tray to descend and reset, so that the loading tray is away from the mold, thereby ensuring the smooth operation of the injection molding machine.

[0010] Preferably, the lifting platform is a fork-type lifting platform.

[0011] With the above solution, the fork lift platform is unfolded to drive the loading tray up, and the fork lift platform is folded to drive the loading tray down.

[0012] Preferably, the horizontal driving mechanism includes a guide mechanism for controlling the moving direction of the loading tray and a driving member for driving the loading tray to move.

[0013] With the above solution, the driving member drives the charging tray to move back and forth, and the guide mechanism controls the moving direction of the charging tray to keep it moving horizontally and linearly.

[0014] Preferably, the driving member is a cylinder fixedly mounted on the lifting platform for controlling the horizontal movement of the loading tray, and one end of the piston rod of the cylinder away from the cylinder body is fixed on the loading tray.

[0015] By adopting the above solution, the piston rod of the cylinder extends to drive the charging tray to partially extend outside the protective door of the injection molding machine, and the piston rod of the cylinder retracts to drive the charging tray to retract below the mold of the fixed template.

[0016] Preferably, the guide mechanism includes a mounting block arranged on the side of the loading tray close to the lifting platform, a roller rotatably arranged on the mounting block, and a guide rail arranged on the side of the lifting platform close to the loading tray for the roller to be embedded in and cooperate with the roller to control the linear rolling of the roller.

[0017] When the above scheme is adopted, the weight of the loading tray after being loaded with parts is relatively large, and the resistance of the cylinder to push the loading tray to move is relatively large, which may easily damage the cylinder and may also cause the movement of the loading tray to be offset. Therefore, guide rails and rollers are arranged, and the guide rails are arranged in a straight line along the moving direction of the loading tray. The rollers and guide rails cooperate with each other to realize the linear movement of the loading tray, and the rollers convert the moving friction into rolling friction, thereby reducing the friction force and thus reducing the resistance to the movement of the loading tray.

[0018] Preferably, the loading tray is provided with a forking structure for facilitating a forklift to fork the parts after the parts fall thereon.

[0019] With the above solutions, Solution 1 requires manual lifting, and Solution 2 requires several people to pull out the parts together, which is labor-intensive and inefficient. Through the fork-picking structure, the parts can be directly taken away by a forklift without the need for workers to lift or drag, thereby reducing labor intensity and improving efficiency.

[0020] Preferably, the fork-taking structure comprises a groove sunken on the loading tray into which the fork arm of a forklift can be horizontally inserted and a gap exists between the bottom of the part and the upper end surface of the fork arm.

[0021] By adopting the above scheme, when the parts fall on the loading tray, a fork-picking space is formed between the parts and the groove, which is convenient for the fork arm of the forklift to insert. The fork arm of the forklift is inserted into the fork-picking space and lifted upward to take the parts away from the loading tray. Moreover, since the loading tray can only be raised and lowered and moved horizontally, the position of the groove is fixed after the loading tray is partially extended out of the protective door of the injection molding machine, which is convenient for the forklift to pick up at a fixed point.

[0022] Preferably, a bottom frame is provided on the side of the lifting platform away from the loading tray for easy placement or installation in the injection molding machine.

[0023] The utility model adopts the above technical scheme, which has significant technical effects: the loading tray receives the parts that fall from the mold after demolding, and after the lifting platform drives the loading tray to rise, the cylinder drives the loading tray to extend outward, and the parts are transferred out of the injection molding machine, and the parts are taken away by a forklift, so there is no need for workers to enter the injection molding machine to take the parts, which increases safety, and there is no need for workers to lift or drag, which reduces labor intensity and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of an injection molding machine in the prior art;

[0025] Figure 2 It is a partial schematic diagram of an injection molding machine mold taking device installed in an injection molding machine in an embodiment;

[0026] Figure 3 This is an axonometric view of an in-mold take-out device for an injection molding machine in an embodiment when folded;

[0027] Figure 4 It is an axonometric view of an embodiment of an in-mold taking device for an injection molding machine when a loading tray is raised and has not extended out of a protective door of the injection molding machine;

[0028] Figure 5 and Figure 6 It is an axonometric view of an injection molding machine mold-in-mold taking device in an embodiment when a loading tray rises and partially extends out of the injection molding machine protection door;

[0029] Figure 7 yes Figure 6 Enlarged view of point A in .

[0030] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Injection molding machine; 2. Injection molding machine protection door; 3. Moving platen; 4. Fixed platen; 5. Mold; 6. Base frame; 7. Loading tray; 8. Lifting platform; 9. Cylinder; 10. Mounting block; 11. Roller; 12. Guide rail; 13. Groove. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Example

[0033] An injection molding machine mold removal device, referring to Figures 1 to 7 , including a base frame 6, which can be placed or fixedly installed in the injection molding machine 1, and is located below the injection cavity formed after the mold 5 on the fixed template 4 and the movable template 3 is molded together, that is, below the un-demolded parts.

[0034] A lifting platform 8 is fixedly arranged on the chassis 6. In the present embodiment, the lifting platform 8 is a fork-type lifting platform 8, specifically a fixed lifting platform (single scissors) with the item number HKE1001 of Hao Ke (Shanghai) Industrial Co., Ltd. The fork-type lifting platform is a prior art and will not be described in detail here.

[0035] A loading tray 7 is arranged on the side of the lifting platform 8 away from the bottom frame 6. The lifting platform is unfolded to drive the loading tray 7 to rise, and the lifting platform 8 is folded to drive the loading tray 7 to fall. The loading tray 7 moves horizontally on the lifting platform 8. A horizontal driving mechanism for controlling the reciprocating movement of the loading tray 7 is arranged on the lifting platform 8. The horizontal driving mechanism can drive the loading tray 7 to extend outward to transfer the parts placed thereon to the outside of the protective door 2 of the injection molding machine, and can also drive the loading tray 7 to retract inward to be located under the un-demolded parts.

[0036] The horizontal driving mechanism includes a guiding mechanism and a driving member. The driving member drives the charging tray 7 to move back and forth, and the guiding mechanism controls the moving direction of the charging tray 7 to keep it moving horizontally and linearly.

[0037] The driving part is a cylinder 9. The cylinder body of the cylinder 9 is installed between the loading tray 7 and the lifting platform 8 and fixed on the lifting platform 8. The end of the piston rod of the cylinder 9 away from the cylinder 9 is fixed to the bottom of the loading tray 7. The piston rod of the cylinder 9 extends to drive the loading tray 7 to partially extend out of the injection molding machine protection door 2, and send the parts out of the injection molding machine 1; the piston rod of the cylinder 9 retracts to drive the loading tray 7 to retract to the bottom of the un-demolded parts, waiting for receiving the materials.

[0038] The guide mechanism includes a mounting block 10 disposed on the side of the loading tray 7 close to the lifting platform 8, a roller 11 is rotatably disposed on the mounting block 10, and a guide rail 12 is disposed on the side of the lifting platform 8 close to the loading tray 7, the guide rail 12 is embedded in the roller 11 and cooperates with the roller 11 in rolling, and the roller 11 and the guide rail 12 cooperate to realize the linear rolling of the roller 11. The horizontal and linear movement of the loading tray 7 is ensured while reducing the resistance to the movement of the loading tray 7.

[0039] In this embodiment, two groups of guide mechanisms are provided between the lifting platform 8 and the charging tray 7 , and the two groups are symmetrically arranged on both sides of the cylinder 9 to ensure balanced force on the charging tray 7 and prevent the charging tray 7 from tilting.

[0040] The loading tray 7 is provided with a fork picking structure, through which the parts can be directly taken away by a forklift after falling on the loading tray 7 and being conveyed out of the injection molding machine 1 by the loading tray 7, without the need for workers to lift or drag, thereby reducing labor intensity and improving efficiency.

[0041] The fork-picking structure includes a groove 13 sunken on the loading tray 7, into which the fork arm of a forklift can be inserted horizontally, and after the fork arm is inserted, there is a gap between the bottom of the part and the upper end surface of the fork arm. The fork arm of the forklift is inserted into the groove 13, and the part can be taken away from the loading tray 7 by lifting it upward; and since the loading tray 7 can only be lifted and moved horizontally, the position of the groove 13 is fixed after the loading tray 7 is partially extended out of the protective door 2 of the injection molding machine, which is convenient for the forklift to pick up at a fixed point.

[0042] When taking out the parts, the parts are demoulded and fall onto the loading tray 7, and the lifting platform 8 is unfolded to drive the loading tray 7 to rise. After the loading tray 7 rises, the piston rod of the cylinder 9 extends to control the loading tray 7 to extend outward, and the parts placed on it are transferred to the outside of the injection molding machine 1. The forklift is inserted into the groove 13 to take the parts away; the piston rod of the cylinder 9 retracts to control the loading tray 7 to move inward and reset, and the lifting platform 8 is folded to control the loading tray 7 to descend and reset, waiting for the next material reception.

[0043] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An in-mold removal device for an injection molding machine, characterized in that: The invention comprises a lifting platform (8) and a loading tray (7) which moves horizontally on the lifting platform (8) and is used to receive demoulded parts. The lifting platform (8) is provided with a horizontal driving mechanism which drives the loading tray (7) to move back and forth outside the protective door (2) of the injection molding machine and below the un-demolded parts. The horizontal driving mechanism comprises a guiding mechanism which controls the moving direction of the loading tray (7) and a driving member which drives the loading tray (7) to move. The driving member is a cylinder (9) which is fixedly arranged on the lifting platform (8) and controls the horizontal movement of the loading tray (7). The end of the piston rod of the cylinder (9) which is away from the cylinder body is fixed on the loading tray (7).

2. The device for removing parts from an injection molding machine according to claim 1, characterized in that: The lifting platform (8) is a fork-type lifting platform.

3. The device for removing parts from an injection molding machine according to claim 1, characterized in that: The guide mechanism comprises a mounting block (10) arranged on a side of the loading tray (7) close to the lifting platform (8), a roller (11) rotatably arranged on the mounting block (10), and a guide rail (12) arranged on a side of the lifting platform (8) close to the loading tray (7) for the roller (11) to be embedded in and rollingly cooperates with the roller (11) to control the linear rolling of the roller (11).

4. The device for removing parts from an injection molding machine according to claim 1, characterized in that: The loading tray (7) is provided with a forking structure which facilitates a forklift to fork the parts when the parts fall thereon.

5. The device for removing parts from a mold of an injection molding machine according to claim 4, characterized in that: The fork-taking structure comprises a groove (13) sunken on the loading tray (7) into which the fork arm of a forklift can be horizontally inserted and a gap exists between the bottom of the part and the upper end surface of the fork arm.

6. The device for removing parts from an injection molding machine according to claim 1, characterized in that: A bottom frame (6) is provided on one side of the lifting platform (8) away from the loading tray (7) and is convenient for being placed or installed in the injection molding machine (1).

Images