Injection molding part demolding and taking device

Abstract

The utility model relates to the technical field of injection molding part production, in particular to an injection molding part demolding and taking device which comprises a driving air cylinder, a pushing frame, clamping assemblies and a demolding assembly, the pushing frame is fixedly arranged at the telescopic end of the driving air cylinder, the clamping assemblies are installed on the two sides of the pushing frame, and the demolding assembly is installed on the outer side of the pushing frame. The clamping assembly comprises a clamping air cylinder, a clamping frame, a mounting strip, limiting clamping blocks, a clamping shaft and a spring, when the clamping assembly clamps the two sides of an injection molding part, the limiting clamping blocks of the contact part are pressed to move towards the inner side of the mounting strip, so that the tops of the limiting clamping blocks which are not in contact are lifted at the bottom of the injection molding part, and the injection molding part is taken out. And then the turnover frame is driven by the motor to rotate, so that after the turnover frame is in a vertical state, the ejection air cylinder drives the ejection strip to push forwards, the injection molding part is separated from the mold ejection mechanism, and the situation that the injection molding part is separated from the clamping assembly and falls off due to deformation of the injection molding part during direct pulling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molded parts production, in particular to an injection molded parts demoulding and taking device. Background Art

[0002] Injection molding is a plastic processing method that uses an injection molding machine to inject plastic raw materials into a mold, and then mold them under a certain temperature and pressure to finally obtain the desired plastic products. Injection molded parts can be made of rubber or plastic. Rubber injection molding involves injecting the rubber directly from the barrel into the mold for vulcanization, while plastic injection molding involves injecting molten plastic into the mold and cooling it to form. Injection molded parts are widely used in various packaging, parts and other products.

[0003] Injection molded parts are generally produced by injection molding machines with professional molds. After the molten plastic enters the mold and cools and forms, the mold is separated to take out the injection molded parts. At this time, the ejection mechanism inside the mold ejects the injection molded parts from the mold cavity, and the robot completes the work of taking out the parts. The existing taking-out equipment mainly realizes the work of taking out the parts by clamping and grasping on both sides. The clamping force should not be too large, which causes the heavier plastic parts to fall off. The bottom of the plastic parts lacks the necessary support, and when demolding and taking out the parts, the injection molded parts will stick to the end of the ejection mechanism, resulting in the pulling force during grasping, causing the injection molded parts to deform, and it is also easy to cause the injection molded parts to fall off. Therefore, demolding auxiliary equipment is required for early demolding. Utility Model Content

[0004] The utility model aims at the defects in the prior art and provides a device for demoulding and taking out injection molded parts.

[0005] The utility model is realized through the following technical solutions:

[0006] A device for demoulding and removing injection molded parts, comprising a driving cylinder, a pushing frame, a clamping assembly and a demoulding assembly, wherein the pushing frame is fixedly arranged at the telescopic end of the driving cylinder, the clamping assembly is installed on both sides of the pushing frame, and the demoulding assembly is installed on the outside of the pushing frame. The clamping assembly comprises a clamping cylinder, a clamping frame, a mounting strip, a limit clamping block, a clamping shaft and a spring, the clamping cylinder is installed on the back of the pushing frame, the clamping frame is fixedly arranged at the telescopic end of the clamping cylinder, the mounting strip is fixed to the end of the clamping frame, the limit clamping block is clamped inside one side of the clamping frame, the clamping shaft is fixedly arranged at the tail end of the limit clamping block, and the spring is sleeved on the outside of the clamping shaft.

[0007] In a preferred embodiment of the utility model, the demoulding assembly includes a connecting frame, a motor, a folding frame, an ejection cylinder and an ejection bar, the connecting frame is fixedly arranged on the outside of the pushing frame, the motor is installed on the outside of the connecting frame, one end of the folding frame is sleeved and fixed on the output end of the motor, the ejection cylinder is installed on the outside of the folding frame, and the ejection bar is fixedly arranged on the end of the ejection cylinder;

[0008] The demoulding assembly mainly applies a thrust from the inside of the injection molded part through the ejection bar to separate the injection molded part from the end of the ejection mechanism, thereby preventing the injection molded part from being deformed and separated from the clamping assembly when the clamping assembly moves backward.

[0009] In a preferred embodiment of the utility model, a slot cooperating with the limit clamping block is provided on the inner side of the installation strip, guide blocks are provided on both sides of the limit clamping block, and a guide groove cooperating with the limit clamping block is provided laterally on the inner side of the installation strip;

[0010] The guide blocks on both sides of the limit clamp block are clamped in the guide grooves on the inner side of the installation strip to guide the movement of the limit clamp block. The limit clamp block plays the role of clamping the injection molded parts.

[0011] In a preferred embodiment of the present invention, one end of the clamping shaft penetrates through and extends to the outside of one side of the mounting bar, and a limiting plate is fixedly provided at the end of the clamping shaft.

[0012] In a preferred embodiment of the utility model, the motors at both ends of the outer side of the connecting frame are arranged in a staggered manner, and the inner side of the folding frame is provided with a mounting groove that matches the ejection strip;

[0013] The staggered arrangement of the motors is mainly used to avoid interference when the folding frames at their ends move.

[0014] The beneficial effects of the utility model are:

[0015] When the clamping assembly of the injection molded part demoulding and picking device clamps the two sides of the injection molded part, the limit clamping blocks of the contact part will be pressed to move inwards of the mounting strip, so that the top of the limit clamping blocks that are not in contact are lifted on the bottom of the injection molded part to play a supporting role and prevent the injection molded part from falling. Subsequently, the folding frame is driven by the motor to rotate, and after the folding frame is in a vertical state, the ejection cylinder drives the ejection strip forward to separate the injection molded part from the mold ejection mechanism, so as to prevent the injection molded part from being deformed when directly pulled and causing the injection molded part to separate from the clamping assembly and fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the injection molded part demoulding and taking-out device of the utility model;

[0017] Figure 2 It is a schematic diagram of the main structure of the injection molded part demoulding and taking-out device of the utility model;

[0018] Figure 3 It is a schematic diagram of the top view of the structure of the injection molded part demoulding and taking-out device of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the injection molded part demoulding and taking device of the utility model;

[0020] Figure 5It is a schematic diagram of the installation structure of the limiting clamp block of the injection molded part demoulding and taking device of the utility model;

[0021] Figure 6 The utility model is a schematic diagram of the demoulding component structure of the injection molded part demoulding and removing device.

[0022] In the figure: 1. driving cylinder; 2. pushing frame; 3. clamping assembly; 31. clamping cylinder; 32. clamping frame; 33. mounting strip; 34. limiting clamp block; 35. clamping shaft; 36. spring; 4. demoulding assembly; 41. connecting frame; 42. motor; 43. folding frame; 44. ejection cylinder; 45. ejection strip. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more specific definition of the protection scope of the present invention. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention.

[0024] like Figure 1-6 The device for demoulding and removing injection molded parts shown in the figure comprises a driving cylinder 1, a pushing frame 2, a clamping assembly 3 and a demoulding assembly 4. The pushing frame 2 is fixedly arranged at the telescopic end of the driving cylinder 1, the clamping assembly 3 is installed on both sides of the pushing frame 2, and the demoulding assembly 4 is installed on the outside of the pushing frame 2. The clamping assembly 3 comprises a clamping cylinder 31, a clamping frame 32, a mounting strip 33, a limit clamping block 34, a clamping shaft 35 and a spring 36. The clamping cylinder 31 is installed on the back of the pushing frame 2, the clamping frame 32 is fixedly arranged at the telescopic end of the clamping cylinder 31, the mounting strip 33 is fixed to the end of the clamping frame 32, the limit clamping block 34 is clamped inside one side of the clamping frame 32, the clamping shaft 35 is fixedly arranged at the tail end of the limit clamping block 34, and the spring 36 is sleeved on the outside of the clamping shaft 35.

[0025] Specifically, the demoulding assembly 4 includes a connecting frame 41, a motor 42, a folding frame 43, an ejection cylinder 44 and an ejection bar 45. The connecting frame 41 is fixedly arranged on the outside of the pushing frame 2, the motor 42 is installed on the outside of the connecting frame 41, one end of the folding frame 43 is sleeved and fixed on the output end of the motor 42, the ejection cylinder 44 is installed on the outside of the folding frame 43, and the ejection bar 45 is fixedly arranged at the end of the ejection cylinder 44. A card groove cooperating with the limit clamp 34 is opened on the inner side of the mounting bar 33, guide blocks are arranged on both sides of the limit clamp 34, and a guide groove cooperating with it is opened laterally on the inner side of the mounting bar 33. One end of the card shaft 35 passes through and extends to the outside of one side of the mounting bar 33, and a limit plate is fixedly arranged on the end of the card shaft 35. The motors 42 at both ends of the outer side of the connecting frame 41 are staggered, and a mounting groove cooperating with the ejection bar 45 is opened on the inner side of the folding frame 43.

[0026] In this embodiment, after the ejection mechanism inside the mold ejects the completed injection molded part, the end of the ejection mechanism is still in contact with the inner side of the injection molded part and adhesion occurs to a certain extent. At this time, the driving cylinder 1 pushes the pushing frame 2 forward to move the clamping assembly 3 to both sides of the injection molded part. Then the clamping cylinder 31 contracts, and the clamping frame 32 moves inward. After the limit clamp block 34 contacts the edge of the injection molded part, it squeezes the inside of the mounting strip 33. The contacting limit clamp block 34 corresponds to the spring 36 on the surface of the clamping shaft 35 that contracts under pressure, and the top of the topmost limit clamp block 34 that is not in contact with the injection molded part will contact the bottom of the injection molded part to achieve a supporting and lifting effect. A card groove is provided on the inner side of the limit clamp block 34 to achieve a limiting effect and prevent the clamped injection molded part from falling off.

[0027] Furthermore, after the clamping assembly 3 clamps the injection molded part, the demolding assembly 4 located on the inner side of the bottom of the injection molded part works, and the staggered motors 42 are started in an staggered manner to rotate the folding frame 43 to a vertically upward state, and then the ejection cylinder 44 is started to eject the ejection bar 45 from the folding frame 43, acting on the inner side of the injection molded part, thereby separating the injection molded part from the end of the mold ejection mechanism. At this time, the driving cylinder 1 contracts to remove the injection molded part, effectively avoiding the risk of the inner side of the injection molded part sticking to the ejection mechanism when directly taking it out, resulting in pulling deformation and causing the injection molded part to fall off. In addition, the compressed state of the spring 36 also promptly ejects the limit clamp 34 to contact the edge of the injection molded part when the injection molded part is slightly deformed, thereby avoiding the injection molded part from falling off.

[0028] It should be noted that the parts not covered in the present invention are the same as the prior art or can be implemented by the prior art; the various drives in the present invention can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, motors, etc. in combination with connecting rods, guide rods, etc., and are not limited to the description in the specification and the structures in the drawings.

[0029] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set", "provided with", etc. 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 mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A device for removing molded parts from a mold, comprising a driving cylinder (1), a pushing frame (2), a clamping assembly (3) and a demoulding assembly (4), characterized in that: The pushing frame (2) is fixedly arranged at the telescopic end of the driving cylinder (1), the clamping assembly (3) is installed on both sides of the pushing frame (2), and the demoulding assembly (4) is installed on the outside of the pushing frame (2); The clamping assembly (3) comprises a clamping cylinder (31), a clamping frame (32), a mounting strip (33), a limiting clamp block (34), a clamping shaft (35) and a spring (36); the clamping cylinder (31) is mounted on the back of the pushing frame (2); the clamping frame (32) is fixedly arranged at the telescopic end of the clamping cylinder (31); the mounting strip (33) is fixed to the end of the clamping frame (32); the limiting clamp block (34) is clamped inside one side of the clamping frame (32); the clamping shaft (35) is fixedly arranged at the rear end of the limiting clamp block (34); and the spring (36) is sleeved on the outside of the clamping shaft (35).

2. The device for removing molded parts from the mold according to claim 1, characterized in that: The demoulding assembly (4) comprises a connecting frame (41), a motor (42), a folding frame (43), an ejection cylinder (44) and an ejection bar (45); the connecting frame (41) is fixedly arranged on the outside of the pushing frame (2); the motor (42) is installed on the outside of the connecting frame (41); one end of the folding frame (43) is sleeved and fixed on the output end of the motor (42); the ejection cylinder (44) is installed on the outside of the folding frame (43); and the ejection bar (45) is fixedly arranged on the end of the ejection cylinder (44).

3. The device for removing molded parts from the mold according to claim 1, characterized in that: A clamping groove cooperating with the limiting clamping block (34) is provided on the inner side of the installation strip (33), guide blocks are arranged on both sides of the limiting clamping block (34), and a guide groove cooperating with the limiting clamping block (34) is transversely provided on the inner side of the installation strip (33).

4. The device for removing molded parts from the mold according to claim 1, characterized in that: One end of the clamping shaft (35) passes through and extends to the outside of one side of the mounting bar (33), and a limiting plate is fixedly arranged at the end of the clamping shaft (35).

5. The device for removing molded parts from the mold according to claim 2, characterized in that: The motors (42) at both ends of the outer side of the connecting frame (41) are arranged in a staggered manner, and a mounting groove cooperating with the ejection strip (45) is provided on the inner side of the folding frame (43).

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