Feeding platform of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an injection molding machine feeding platform which comprises a platform body, a guardrail frame arranged in the circumferential direction of the platform body and a safety door hinged to the guardrail frame, and a springback structure for driving the safety door to be in a closed state in a normal state is arranged between the safety door and the guardrail frame. A switching protection structure is arranged between the safety door and the guardrail frame, when the safety door is opened, the switching protection structure is disconnected, and the injection molding machine stops; when the safety door is closed, the switching protection structure is communicated, the injection molding machine is started, and an elastic buffer structure for driving a fit clearance to exist between the safety door and the guardrail frame after the safety door automatically rebounds is arranged between the safety door and the guardrail frame; a locking mechanism which drives the elastic buffer structure to be compressed and drives the safety door to be in a closed state after certain force is applied is arranged between the safety door and the guardrail frame, the injection molding machine feeding platform enables the injection molding machine to be in a stopped state all the time when an operator stays on the platform body, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a feeding platform for an injection molding machine. Background Art

[0002] The injection molding machine requires the operator to perform material adding operations through the loading platform.

[0003] Chinese patent application number 201920980795.5 discloses a loading platform for an injection molding machine, including a ladder and a platform located above the ladder and connected to the ladder, guardrails are arranged around the platform, and a guard door is also arranged at the connection between the ladder and the platform, a rebound device is installed on the guard door, the rebound device drives the guard door to move toward the ladder, a buckle is installed on the guard door, a buckle seat corresponding to the buckle is arranged on the ladder or the guardrail, a travel switch connected to the control device of the injection molding machine is arranged on the ladder, and a switch bumper is arranged on the guard door, and the switch bumper can contact the travel switch when the guard door is opened.

[0004] In this solution, when the operator opens the protective door, the switch bumper touches the travel switch and the injection molding machine stops working. In addition, during the process of opening the protective door, the switch bumper is always in contact with the travel switch to ensure that the injection molding machine is always in a stopped state. However, the operator cannot always apply force to the protective door during loading operations, which causes the protective door to close under the action of the rebound device, causing the injection molding machine to start, posing a safety hazard and, in serious cases, endangering the operator's personal safety. Utility Model Content

[0005] The utility model provides a feeding platform for an injection molding machine in view of the shortcomings of a feeding platform in the prior art, which has a low safety factor and potential safety hazards.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A feeding platform for an injection molding machine comprises a platform body, a guardrail frame arranged circumferentially of the platform body, and a safety door hinged on the guardrail frame to form a closed loop with the guardrail frame when closed; a rebound structure for driving the safety door to be in a closed state under normal conditions is arranged between the safety door and the guardrail frame; a switching protection structure that can be connected or disconnected with each other is arranged between the safety door and the guardrail frame; when the safety door is opened, the switching protection structure is disconnected, at which time the injection molding machine stops; when the safety door is closed, the switching protection structure is connected, at which time the injection molding machine starts; an elastic buffer structure is arranged between the safety door and the guardrail frame, which drives a matching gap between the safety door and the guardrail frame after the safety door automatically rebounds to avoid the connection of the switching protection structure; and a locking mechanism is arranged between the safety door and the guardrail frame, which drives the elastic buffer structure to be compressed and the safety door to be in a closed state after applying a certain force.

[0008] With the above solution, after the operator opens the safety door and enters the platform body, the external force on the safety door is removed, and the safety door automatically rebounds and closes under the rebound structure. Under the action of the elastic buffer structure, a matching gap is formed between the safety door and the guardrail frame, reducing the risk of the operator easily stepping on the air and falling due to the safety door being completely open. At the same time, it also prevents the injection molding machine from starting due to the switching of the protection structure, greatly reducing safety hazards and improving the safety of the loading platform. On the contrary, after the operator leaves the platform body, the safety door automatically rebounds, and the operator applies force on the safety door to drive the elastic buffer structure to compress and put the safety door in a closed state. The locking structure is then used to ensure that the safety door is always in a closed state. In this state, the protection structure is switched to connect, and the injection molding machine automatically starts.

[0009] Preferably, the switching protection structure includes a magnetic switch fixed on the guardrail frame and connected to the injection molding machine signal, and a magnetic component fixed on the safety door and moving away from or close to the magnetic switch as the safety door is opened and closed. When the safety door is opened, the magnetic component moves away from the magnetic switch to disconnect the magnetic switch; when the safety door is closed, the magnetic component moves close to the magnetic switch to connect the magnetic switch.

[0010] By adopting the above scheme, the safety door is opened, the safety door and the guardrail frame are separated, and the magnetic part installed on the safety door is away from the magnetic switch installed on the guardrail frame, so that the magnetic switch is disconnected and the injection molding machine is controlled to stop; conversely, the safety door is closed, the magnetic part is close to the magnetic switch, so that the magnetic switch is connected and the injection molding machine is controlled to start operation.

[0011] Preferably, the rebound structure includes a spring hinge arranged between the safety door and the guardrail frame, which drives the safety door to be in a closed state under normal conditions.

[0012] With the above solution, when the operator opens the safety door, the spring hinge is deformed to generate elastic force. After the external force on the safety door is removed, the safety door automatically rebounds and closes under the action of the resetting elastic force of the spring hinge.

[0013] Preferably, the elastic buffer structure includes a screw threadedly connected to the guardrail frame, a sliding groove recessed on the side of the screw close to the safety door, an abutment rod telescopically arranged in the sliding groove, and an elastic member arranged between the abutment rod and the sliding groove, which controls the abutment rod to partially extend and abut against the safety door under normal conditions and drives a fitting gap to exist between the safety door and the guardrail frame, and the elastic coefficient of the elastic member is greater than the elastic coefficient of the spring hinge.

[0014] With the above solution, during the rebound of the safety door, it comes to rest after abutting against the end of the abutment rod away from the screw rod. Since the elastic coefficient of the elastic member is greater than the elastic coefficient of the spring hinge, the safety door will not drive the abutment rod to retract into the sliding groove when it rebounds, thereby preventing the safety door from being completely closed. When the safety door needs to be closed, an external force is applied to the safety door to overcome the elastic coefficient of the elastic member, driving the abutment rod to retract into the sliding groove, and the safety door can be closed. At this time, the deformation of the elastic member has elastic force. By turning the screw rod and adjusting the matching position between the screw rod and the guardrail frame, the size of the matching gap formed by the safety door and the guardrail frame can be adjusted.

[0015] Preferably, the abutment rod comprises a telescopic rod telescopically arranged in the sliding groove and a magnet arranged on a side of the telescopic rod away from the screw rod, and the elastic member is arranged between the telescopic rod and the sliding groove.

[0016] By adopting the above scheme, the safety door comes into contact with the magnet and is magnetically attracted to the magnet during the rebound process, thereby reducing or avoiding the risk of repeated shaking due to inertia after the safety door collides with the abutment rod, causing the safety door to repeatedly collide with the abutment rod and generate noise, as well as the risk of collision damage to the safety door and the abutment rod, thereby achieving the purpose of protecting the safety door and the abutment rod while reducing noise.

[0017] Preferably, the locking structure includes a latch lock provided on the safety door and a latch lock buckle provided on the guardrail frame.

[0018] By adopting the above scheme, the safety door can be restricted to remain in a closed state after the latch lock and the latch lock catch are plugged in, and the safety door can be opened after the latch lock and the latch lock catch are disengaged.

[0019] Preferably, an anti-mis-closing structure is provided between the safety door and the guardrail frame to prevent the safety door from being mistakenly closed by another operator.

[0020] When adopting the above solution, in actual process, when the operator is on the platform body, there is a possibility that another operator sees that the safety door is not closed and will close the safety door by accident, which increases the risk. Therefore, an anti-misclosing structure is provided to prevent the safety door from being accidentally closed by another operator.

[0021] Preferably, the anti-misclosing structure includes a baffle rotatably connected to the guardrail frame, which restricts the safety door from closing when the baffle rotates between the safety door and the guardrail frame, and releases the limit on the safety door when the baffle rotates in the opposite direction to disengage the fitting gap between the safety door and the guardrail frame. A padlock is provided between the baffle and the guardrail frame to restrict the baffle from rotating in the opposite direction when the baffle rotates between the safety door and the guardrail frame.

[0022] With the above solution, after the safety door is opened, the baffle is rotated to between the safety door and the guardrail frame, and the baffle restricts the safety door from closing. At this time, the operator locks the baffle and the guardrail frame with a padlock to restrict the baffle from rotating in the opposite direction. The key is carried by the operator to prevent the baffle from being rotated by another operator, thereby ensuring that the baffle is always located between the safety door and the guardrail frame to prevent the safety door from closing. Conversely, the operator unlocks the padlock with the key, rotates the baffle in the opposite direction to disengage the matching gap between the safety door and the guardrail frame, and releases the limit on the safety door, and the safety door can be closed.

[0023] Preferably, the guardrail frame is provided with a magnetic attraction member for limiting the forward rotation of the baffle plate after the baffle plate rotates in the reverse direction to disengage the fitting gap between the safety door and the guardrail frame.

[0024] With the above solution, when the operator applies too much force to the baffle, the baffle will collide with the guardrail frame and rebound back between the safety door and the guardrail frame due to inertia, causing the safety door to be unable to close. In severe cases, it will rebound on the operator and injure the operator. By setting a magnetic suction piece, the baffle will be magnetically attracted to the guardrail frame after reverse rotation and will not rebound, thereby improving safety.

[0025] Preferably, a ladder for climbing up the platform body is provided on the platform body, and handrails are provided on both sides of the ladder.

[0026] With the above solution, the operator climbs onto the platform body via the ladder, and the handrail protects the operator, reducing the risk of the operator falling.

[0027] The utility model adopts the above technical scheme, and has remarkable technical effects: the safety door automatically rebounds and closes under the rebound structure, and under the action of the elastic buffer structure, a matching gap is formed between the safety door and the guardrail frame, thereby reducing the risk of the operator easily stepping on air and falling due to the safety door being fully open, and also preventing the injection molding machine from starting due to the switching of the protection structure. In addition, an anti-misclosing structure is added to prevent the safety door from being accidentally closed by another operator, which greatly reduces safety hazards and improves the safety of the loading platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is an axonometric view of a loading platform of an injection molding machine in an embodiment;

[0029] Figure 2 yes Figure 1 A in the enlarged view;

[0030] Figure 3 It is a partial enlarged view of a safety door in a loading platform of an injection molding machine in an embodiment when it is opened;

[0031] Figure 4 is an axonometric view of a loading platform of an injection molding machine in an embodiment;

[0032] Figure 5 yes Figure 4 The enlarged view of point B in the figure;

[0033] Figure 6 is a top view of an elastic buffer structure in a feeding platform of an injection molding machine in an embodiment;

[0034] Figure 7 yes Figure 6 Sectional view at CC in the figure.

[0035] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Platform body; 2. Guardrail frame; 3. Safety door; 4. Magnetic switch; 5. Magnetic part; 6. Spring hinge; 7. Screw; 8. Slide groove; 9. Abutment rod; 901, Telescopic rod; 902, Magnet; 10. Elastic part; 11. Latch lock; 12. Latch lock buckle; 13. Baffle; 14. Padlock; 15. Magnetic part; 16. Ladder; 17. Handrail; 18. Handle. DETAILED DESCRIPTION

[0036] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] Example

[0038] An injection molding machine loading platform, referring to Figures 1 to 7 , including a platform body 1, which is fixedly arranged on the injection molding machine, and a guardrail frame 2 is arranged around the platform body 1, and a safety door 3 is hingedly arranged on the guardrail frame 2. When the safety door 3 is closed, it forms a closed loop with the guardrail frame 2. When the safety door 3 is opened, the operator can enter the platform body 1. It also includes a ladder 16, one end of which is fixed on the platform body 1 and the other end extends downward. The operator climbs up the ladder 16 and enters the platform body 1 through the opened safety door 3. Handrails 17 are arranged on both sides of the ladder 16, and the handrails 17 protect the operator and reduce the risk of the operator falling.

[0039] A switching protection structure that can be connected or disconnected is provided between the safety door 3 and the guardrail frame 2. When the safety door 3 is opened, the switching protection structure is disconnected, and the injection molding machine stops at this time; when the safety door 3 is closed, the switching protection structure is connected, and the injection molding machine starts at this time. This ensures that when the operator opens the safety door 3 and enters the platform body 1, the injection molding machine is in a stopped state, which greatly reduces safety hazards and improves the safety of the loading platform. When the operator leaves the platform body 1 and closes the safety door 3, the switching protection structure is connected, and the injection molding machine starts automatically. A handle 18 is provided on the safety door 3 for easy opening and closing.

[0040] The switching protection structure includes a magnetic switch 4 fixedly arranged on the guardrail frame 2, the magnetic switch 4 is electrically connected to the injection molding machine signal, and a magnetic part 5 is fixedly arranged on the safety door 3. The magnetic part 5 can move away from or approach the magnetic switch 4 as the safety door 3 is opened and closed. When the safety door 3 is opened, the safety door 3 and the guardrail frame 2 are separated, and the magnetic part 5 installed on the safety door 3 is away from the magnetic switch 4 installed on the guardrail frame 2, so that the magnetic switch 4 is disconnected and the injection molding machine is controlled to stop; conversely, the safety door 3 is closed, and the magnetic part 5 is close to the magnetic switch 4, so that the magnetic switch 4 is connected and the injection molding machine is controlled to start operation.

[0041] The connection here means that when the magnetic part 5 is close to the magnetic switch 4, the two reeds in the magnetic switch 4 will be magnetized and attract each other, so that the circuit is connected. The specific working principle of the magnetic switch 4 and the signal connection and control method with the injection molding machine are all existing technologies, which are not shown in the figure and will not be described here.

[0042] A rebound structure is provided between the safety door 3 and the guardrail frame 2, which can drive the safety door 3 to be in a closed state under normal conditions. After the operator opens the safety door 3 and enters the platform body 1, the external force on the safety door 3 is removed, and the safety door 3 automatically rebounds and closes under the rebound structure, reducing the risk of the operator easily stepping on air and falling due to the safety door 3 being fully opened.

[0043] However, the operator cannot always apply force on the safety door 3 when performing loading operations, which will cause the safety door 3 to close under the action of the rebound structure, resulting in the switching of the protection structure to start the injection molding machine, which poses a safety hazard and may endanger the operator's personal safety in serious cases. Therefore, an elastic buffer structure is provided between the safety door 3 and the guardrail frame 2. When the safety door 3 automatically rebounds, the elastic buffer structure can drive a matching gap between the safety door 3 and the guardrail frame 2 to avoid the switching of the protection structure.

[0044] The safety door 3 automatically rebounds under the rebound structure, and under the action of the elastic buffer structure, a matching gap is formed between the safety door 3 and the guardrail frame 2, reducing the risk of the operator easily stepping on the air and falling due to the safety door 3 being fully open, and at the same time preventing the injection molding machine from starting due to the switching of the protection structure, which greatly reduces the potential safety hazards and improves the safety of the loading platform. On the contrary, after the operator leaves the platform body 1, the safety door 3 automatically rebounds, and the operator only needs to apply force on the safety door 3 to drive the elastic buffer structure to compress and put the safety door 3 in a closed state. A locking mechanism is also provided between the safety door 3 and the guardrail frame 2, and the locking structure ensures that the safety door 3 is always in a closed state. In this closed state, the protection structure is switched to be connected, and the injection molding machine automatically starts.

[0045] The elastic buffer structure includes a screw rod 7 threadedly connected to the guardrail frame 2, a sliding groove 8 is recessed on the side of the screw rod 7 close to the safety door 3, an abutting rod 9 is telescopically arranged in the sliding groove 8, an elastic member 10 is arranged between the abutting rod 9 and the sliding groove 8, and the elastic coefficient of the elastic member 10 is greater than the elastic coefficient of the spring hinge 6. During the rebound of the safety door 3, it abuts against the end of the abutting rod 9 away from the screw rod 7 and then stops. Since the elastic coefficient of the elastic member 10 is greater than the elastic coefficient of the spring hinge 6, the safety door 3 will not drive the abutting rod 9 to retract into the sliding groove 8 when it rebounds, so that there is a matching gap between the safety door 3 and the guardrail frame 2, thereby preventing the safety door 3 from being completely closed; when the safety door 3 needs to be closed, an external force is applied to the safety door 3 to overcome the elastic coefficient of the elastic member 10, driving the abutting rod 9 to retract into the sliding groove 8, so that the safety door 3 can be closed. At this time, the elastic member 10 is deformed with elastic force and needs to be locked by the locking structure. In addition, by rotating the screw rod 7 and adjusting the matching position between the screw rod 7 and the guardrail frame 2, the size of the matching gap formed by the safety door 3 and the guardrail frame 2 can be adjusted.

[0046] The abutment rod 9 includes a telescopic rod 901 telescopically arranged in the sliding groove 8 and a magnet 902 arranged on the side of the telescopic rod 901 away from the screw rod 7, and the elastic member 10 is arranged between the telescopic rod 901 and the sliding groove 8. During the rebound process of the safety door 3, it contacts with the magnet 902 and is magnetically attracted to the magnet 902, thereby reducing or avoiding the noise generated by the safety door 3 repeatedly colliding with the abutment rod 9 due to inertia and the risk of collision damage to the safety door 3 and the abutment rod 9, thereby achieving the purpose of protecting the safety door 3 and the abutment rod 9 while reducing noise. In this embodiment, the elastic member 10 is a spring.

[0047] The locking structure includes a latch lock 11 provided on the safety door 3 and a latch lock catch 12 provided on the guardrail frame 2. When the latch lock 11 and the latch lock catch 12 are plugged in, the safety door 3 can be restricted to remain in a closed state, and when the latch lock 11 and the latch lock catch 12 are disengaged, the safety door 3 can be opened.

[0048] In actual practice, when an operator is on the platform body 1, there is another operator who sees that the safety door 3 is not closed and will close the safety door 3, which increases the risk for the operator of the platform body 1. Therefore, an anti-misclosing structure is set to prevent the safety door 3 from being accidentally closed by another operator.

[0049] The anti-misclosing structure includes a baffle 13 rotatably connected to the guardrail frame 2. When the baffle 13 rotates to between the safety door 3 and the guardrail frame 2, the safety door 3 is restricted from closing. When the baffle 13 rotates in the opposite direction to disengage the fitting gap between the safety door 3 and the guardrail frame 2, the limit on the safety door 3 is released. A padlock 14 is provided between the baffle 13 and the guardrail frame 2. When the baffle 13 rotates to between the safety door 3 and the guardrail frame 2, the padlock 14 restricts the baffle 13 from rotating in the opposite direction.

[0050] After the safety door 3 is opened, the baffle 13 is rotated to between the safety door 3 and the guardrail frame 2, and the baffle 13 limits the safety door 3 from closing. At this time, the operator locks the baffle 13 and the guardrail frame 2 with a padlock 14 to limit the baffle 13 from rotating in the opposite direction. The key is carried by the operator to prevent the baffle 13 from being rotated by another operator, thereby ensuring that the baffle 13 is always located between the safety door 3 and the guardrail frame 2 to prevent the safety door 3 from closing. On the contrary, the operator unlocks the padlock 14 with the key, rotates the baffle 13 in the opposite direction to disengage the matching gap between the safety door 3 and the guardrail frame 2, and releases the limit on the safety door 3, so that the safety door 3 can be closed.

[0051] The guardrail frame 2 is provided with a magnetic attraction part 15. When the baffle 13 rotates in the reverse direction to escape the matching gap between the safety door 3 and the guardrail frame 2, the magnetic attraction part 15 limits the forward rotation of the baffle 13. When the operator applies too much force to the baffle 13, the baffle 13 will rebound back between the safety door 3 and the guardrail frame 2 due to inertia after colliding with the guardrail frame 2, causing the safety door 3 to be unable to close. In serious cases, it will rebound back to the operator and injure the operator. By providing the magnetic attraction part 15, the baffle 13 will be magnetically attracted to the guardrail frame 2 by the magnetic attraction part 15 after the reverse rotation, and will not rebound, thereby improving safety.

[0052] Operation process 1: The operator moves the latch lock 11 to disengage the latch lock catch 12, and the operator opens the safety door 3 to enter the platform body 1. After the external force on the safety door 3 is removed, it rebounds under the action of the spring hinge 6 until it abuts against the magnet 902 and is attracted. There is a gap between the safety door 3 and the guardrail frame 2 to prevent it from being completely closed. On the contrary, the operator opens the safety door 3 and leaves the platform body 1. After the safety door 3 rebounds, force is applied to the safety door 3 again, squeezing the elastic member 10 to drive the safety door 3 to be completely closed, and then the latch lock 11 and the latch lock catch 12 cooperate to complete the closing of the safety door 3.

[0053] Operation process 2: The operator moves the latch lock 11 to disengage the latch lock catch 12, opens the safety door 3 and enters the platform body 1, rotates the baffle 13 to be located between the safety door 3 and the guardrail frame 2, and then locks the baffle 13 and the guardrail frame 2 with the padlock 14 to restrict the baffle 13 from rotating in the opposite direction. The key is carried by the operator. After the external force on the safety door 3 is removed, it rebounds under the action of the spring hinge 6 until it abuts against the baffle 13 to avoid being completely closed. On the contrary, the operator opens the padlock 14, rotates the baffle 13 in the opposite direction until the baffle 13 is attracted to the guardrail frame 2 by the magnetic attraction member 15, and leaves the platform body 1. After the safety door 3 rebounds, the operator applies force to the safety door 3 again, squeezes the elastic member 10 to drive the safety door 3 to be completely closed, and then completes the closing of the safety door 3 through the cooperation of the latch lock 11 and the latch lock catch 12.

[0054] 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. A feeding platform for an injection molding machine, comprising a platform body (1), a guardrail frame (2) arranged circumferentially of the platform body (1), and a safety door (3) hingedly arranged on the guardrail frame (2) and forming a closed loop with the guardrail frame (2) when closed, a rebound structure for driving the safety door (3) to be in a closed state under normal conditions is arranged between the safety door (3) and the guardrail frame (2), and characterized in that: A switching protection structure that can be connected or disconnected with each other is provided between the safety door (3) and the guardrail frame (2); when the safety door (3) is opened, the switching protection structure is disconnected, and at this time, the injection molding machine stops; when the safety door (3) is closed, the switching protection structure is connected, and at this time, the injection molding machine starts; an elastic buffer structure is provided between the safety door (3) and the guardrail frame (2), which drives a matching gap between the safety door (3) and the guardrail frame (2) when the safety door (3) automatically rebounds to avoid the switching protection structure from being connected; and a locking structure is provided between the safety door (3) and the guardrail frame (2), which drives the elastic buffer structure to be compressed after applying a certain force and puts the safety door (3) in a closed state.

2. The injection molding machine loading platform according to claim 1, characterized in that: The switching protection structure comprises a magnetic switch (4) fixedly arranged on the guardrail frame (2) and connected to the injection molding machine signal, and a magnetic member (5) fixedly arranged on the safety door (3) and moving away from or close to the magnetic switch (4) as the safety door (3) is opened or closed; when the safety door (3) is opened, the magnetic member (5) moves away from the magnetic switch (4) so ​​that the magnetic switch (4) is disconnected; when the safety door (3) is closed, the magnetic member (5) moves close to the magnetic switch (4) so ​​that the magnetic switch (4) is connected.

3. The injection molding machine loading platform according to claim 1, characterized in that: The rebound structure comprises a spring hinge (6) arranged between the safety door (3) and the guardrail frame (2) and driving the safety door (3) to be in a closed state under normal conditions.

4. The injection molding machine loading platform according to claim 1, characterized in that: The elastic buffer structure comprises a screw rod (7) threadedly connected to a guardrail frame (2), a sliding groove (8) recessed on a side of the screw rod (7) close to the safety door (3), an abutment rod (9) telescopically arranged in the sliding groove (8), and an elastic member (10) arranged between the abutment rod (9) and the sliding groove (8) for controlling the abutment rod (9) to partially extend and abut against the safety door (3) under normal conditions and driving a matching gap between the safety door (3) and the guardrail frame (2), wherein the elastic coefficient of the elastic member (10) is greater than the elastic coefficient of the spring hinge (6).

5. The injection molding machine loading platform according to claim 4, characterized in that: The abutment rod (9) comprises a telescopic rod (901) telescopically arranged in the sliding groove (8) and a magnet (902) arranged on a side of the telescopic rod (901) away from the screw rod (7), and an elastic member (10) is arranged between the telescopic rod (901) and the sliding groove (8).

6. The injection molding machine loading platform according to claim 1, characterized in that: The locking structure comprises a latch lock (11) arranged on the safety door (3) and a latch lock buckle (12) arranged on the guardrail frame (2).

7. The injection molding machine loading platform according to claim 1, characterized in that: An anti-mis-closing structure is provided between the safety door (3) and the guardrail frame (2) to prevent the safety door (3) from being mistakenly closed by another operator.

8. The injection molding machine loading platform according to claim 7, characterized in that: The anti-mis-closing structure comprises a baffle (13) rotatably connected to a guardrail frame (2); when the baffle (13) rotates to between the safety door (3) and the guardrail frame (2), the safety door (3) is restricted from closing; when the baffle (13) rotates in the reverse direction to escape from the matching gap between the safety door (3) and the guardrail frame (2), the restriction on the safety door (3) is released; and a padlock (14) is provided between the baffle (13) and the guardrail frame (2) for restricting the baffle (13) from rotating in the reverse direction when the baffle (13) rotates to between the safety door (3) and the guardrail frame (2).

9. The injection molding machine loading platform according to claim 8, characterized in that: The guardrail frame (2) is provided with a magnetic attraction member (15) for limiting the forward rotation of the baffle plate (13) when the baffle plate (13) rotates in the reverse direction to escape the matching gap between the safety door (3) and the guardrail frame (2).

10. The injection molding machine loading platform according to claim 1, characterized in that: A ladder (16) for climbing onto the platform body (1) is arranged on the platform body (1), and handrails (17) are arranged on both sides of the ladder (16).

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