Notching device for injection molding product

Abstract

The utility model relates to a notching device for injection molding products, which comprises an adjustable base, a first clamping mechanism, a second clamping mechanism and a shoveling mechanism, the first clamping mechanism and the second clamping mechanism are respectively arranged on the adjustable base, the first clamping mechanism and the second clamping mechanism are oppositely arranged, the shoveling mechanism is arranged on the side surface of the second clamping mechanism, and the shoveling mechanism is arranged on the adjustable base. The shoveling and cutting mechanism comprises a shoveling and cutting air cylinder and a cutter, the shoveling and cutting air cylinder is installed on the side face of the second clamping mechanism, the cutter is installed at the output end of the shoveling and cutting air cylinder, an adapter plate is arranged at the output end of the shoveling and cutting air cylinder, and the cutter is detachably connected to the side face of the adapter plate. The first clamping mechanism and the second clamping mechanism can clamp the two sides of an injection molding product correspondingly, and under pushing of the shoveling and cutting air cylinder, the cutter is transversely pushed out along the side face of the injection molding product and cuts off a water gap of the injection molding product. The cutter is detachably connected to the side face of the adapter plate, cutters of different lengths can be replaced according to the size of a mold or the cutter can be detached on time to be polished, the cutter face is kept sharp, and a notch is flat when the water gap is cut off.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding auxiliary equipment, and particularly relates to a cutting device for injection molded products. Background Art

[0002] Injection molding is a method for producing industrial product shapes. Injection molded products produced using injection molds usually have sprues, and the sprues need to be removed by methods such as mechanical cutting or manual trimming. When using mechanical cutting, it is necessary to rely on the adhesion between the mold and the injection molded product and cooperate with an automatic cutting device to remove the sprue. During the cutting process, the injection molded product often accidentally detaches or pops out of the mold, resulting in the failure of the cutting function and damage to the injection molded product; while using manual trimming is time-consuming and laborious, and there are also situations where the accuracy is difficult to guarantee and each cut is inconsistent, which affects the finished product quality of the injection molded product. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a cutting device for injection molded products, which can not only achieve automatic cutting, but also ensure that during the cutting process, the injection molded product is stable and does not detach from the mold, and the cut is flat and consistent.

[0004] The technical solution of the utility model is: a cutting device for injection molded products, including an adjustable base, a first clamping mechanism, a second clamping mechanism, and a shoveling and cutting mechanism. The first clamping mechanism and the second clamping mechanism are respectively installed on the adjustable base, the first clamping mechanism and the second clamping mechanism are arranged oppositely, and the shoveling and cutting mechanism is installed on the side of the second clamping mechanism.

[0005] Further, the shoveling and cutting mechanism includes a shoveling and cutting cylinder and a tool. The shoveling and cutting cylinder is installed on the side of the second clamping mechanism, and the tool is installed at the output end of the shoveling and cutting cylinder.

[0006] Further, a transfer plate is provided at the output end of the shoveling and cutting cylinder, and the tool is detachably connected to the side of the transfer plate.

[0007] Further, the tool is located between the second clamping mechanism and the transfer plate.

[0008] Further, the side of the tool close to the second clamping mechanism is a plane, and the side close to the transfer plate is a curved surface.

[0009] Further, a material receiving structure is provided on the side of the first clamping mechanism, and the material receiving structure can be moved under the tool.

[0010] Further, the material receiving structure is composed of a baffle, a frame, and a slideway from top to bottom. The baffle is vertically connected to the first clamping plate in the horizontal direction. The baffle is located on the curved surface side of the tool, and the frame is located below between the tool and the baffle.

[0011] Further, the first clamping mechanism includes a first vertical plate, a first cylinder, and a first clamping plate, and the second clamping mechanism includes a second vertical plate, a second cylinder, and a second clamping plate. The first vertical plate and the second vertical plate are respectively installed on the adjustable base. The first cylinder and the second cylinder are respectively installed on the sides of the first vertical plate and the second vertical plate. The first clamping plate and the second clamping plate are respectively installed on the output ends of the first cylinder and the second cylinder. The first clamping plate faces the second clamping plate, and the shoveling cylinder is installed on the side of the second clamping plate.

[0012] Further, anti-slip structures are provided on the facing surfaces of the first clamping plate and the second clamping plate.

[0013] Further, a first guiding hole and a second guiding hole are respectively provided on the first vertical plate and the second vertical plate. A first guiding post and a second guiding post are respectively provided on the first clamping plate and the second clamping plate. The first guiding post and the second guiding post are respectively slidably connected in the first guiding hole and the second guiding hole.

[0014] Further, a limiting block is provided at one end of each of the first guiding post and the second guiding post.

[0015] Further, the adjustable base includes a lateral adjustment mechanism and a longitudinal adjustment mechanism. The first clamping mechanism and the second clamping mechanism are installed on the lateral adjustment mechanism, and the lateral adjustment mechanism is installed on the longitudinal adjustment mechanism.

[0016] Further, the lateral adjustment mechanism includes a sliding plate, third guiding posts, and a lateral lead screw. First fixing plates are provided at both ends of the sliding plate. The third guiding posts are installed between the first fixing plates. The two ends of the lateral lead screw are rotatably connected to the first fixing plates. Transverse guiding holes and threaded holes are provided on both the first vertical plate and the second vertical plate. The third guiding posts are respectively slidably connected to the transverse guiding holes on the first vertical plate and the second vertical plate. The lateral lead screw is respectively in transmission connection with the threaded holes on the first vertical plate and the second vertical plate. The middle part of the lateral lead screw is a cylindrical structure, and the two ends of the cylindrical structure have threads in opposite directions. The first vertical plate and the second vertical plate can approach or move away from each other.

[0017] Further, the longitudinal adjustment mechanism includes a bottom plate and a longitudinal lead screw. Second fixing plates are provided at both ends of the bottom plate. The two ends of the longitudinal lead screw are rotatably connected to the second fixing plates. A guide rail is provided on the bottom plate, and a guide groove is provided at the bottom of the sliding plate. The guide rail is slidably connected to the guide groove. A threaded hole is provided on the side of the sliding plate, and the longitudinal lead screw is in transmission connection with the threaded hole of the sliding plate.

[0018] Further, a handgrip is provided at one end of each of the lateral lead screw and the longitudinal lead screw.

[0019] Further, countersunk holes are provided on the bottom plate.

[0020] Compared with the prior art, the advantages of the present utility model are as follows: The first clamping mechanism and the second clamping mechanism can respectively clamp both sides of the injection molded product. Under the push of the shoveling and cutting cylinder, the tool is horizontally pushed out along the side of the injection molded product to cut off the sprue of the injection molded product; The tool is detachably connected to the side of the adapter plate, and tools with different lengths can be replaced according to the size of the mold, or the tool can be removed regularly for grinding to keep the tool surface sharp and the cut surface smooth when cutting off the sprue. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a schematic structural diagram of the sliding plate of the present utility model;

[0024] Figure 3 is a schematic position diagram of the material receiving structure of the present utility model.

[0025] Wherein: 1, bottom plate; 101, guide rail; 102, countersunk head hole; 103, second fixing plate; 2, sliding plate; 201, guide groove; 202, threaded hole; 203, first fixing plate; 204, third guiding column; 3, longitudinal lead screw; 4, transverse lead screw; 401, cylinder; 5, hand grip; 6, first vertical plate; 601, first guiding hole; 7, second vertical plate; 701, second guiding hole; 8, first cylinder; 9, second cylinder; 10, first clamping plate; 11, second clamping plate; 12, first guiding column; 13, second guiding column; 14, limiting block; 15, shoveling and cutting cylinder; 16, adapter plate; 17, tool; 18, anti-slip structure; 19, baffle plate; 20, frame; 21, slideway. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, describe in detail the specific implementation manner, structure, features and effects of the present utility model as follows.

[0027] Such as Figures 1 - 3As shown in the figure, a cutting device for injection molded products includes an adjustable base, a first clamping mechanism, a second clamping mechanism, and a shoveling and cutting mechanism. The first clamping mechanism and the second clamping mechanism are respectively installed on the adjustable base. The first clamping mechanism and the second clamping mechanism are arranged oppositely, and the first clamping mechanism and the second clamping mechanism can respectively clamp both sides of the injection molded product. The shoveling and cutting mechanism is installed on the side of the second clamping mechanism and is used to cut off the sprue of the injection molded product. The shoveling and cutting mechanism includes a shoveling and cutting cylinder 15 and a cutter 17. The shoveling and cutting cylinder 15 is installed on the side of the second clamping mechanism, and the cutter 17 is installed at the output end of the shoveling and cutting cylinder 15. Under the push of the shoveling and cutting cylinder 15, the cutter 17 is horizontally pushed out along the side of the injection molded product to cut off the sprue of the injection molded product. A transfer plate 16 is provided at the output end of the shoveling and cutting cylinder 15, and the cutter 17 is detachably connected to the side of the transfer plate 16. Different lengths of cutters 17 can be replaced according to the size of the mold, or the cutter 17 can be removed regularly for grinding to keep its cutting edge sharp and the cut surface smooth when cutting off the sprue. The cutter 17 is located between the second clamping mechanism and the transfer plate 16 to prevent the transfer plate 16 from interfering with the mold. One side of the cutter 17 close to the second clamping mechanism is a plane, which can assist in tool alignment and avoid the cutter 17 from rubbing against the injection molded product. One side of the cutter 17 close to the transfer plate 16 is an arc surface. When the sprue is cut off, the lifted amplitude of the cut-off part is small, ensuring that the deformation of the uncut part is small, and thus ensuring the flatness of the cut surface. A material receiving structure is provided on the side of the first clamping mechanism. The material receiving structure can move below the cutter 17 to catch the cut-off sprue. The material receiving structure is composed of a baffle 19, a frame 20, and a slideway 21 from top to bottom. The baffle 19 is vertically connected to the first clamping plate 10 in the horizontal direction. The baffle 19 is located on the arc surface side of the cutter 17. The frame 20 is located below between the cutter 17 and the baffle 19. The cut-off sprue flies out from the side of the injection molded product, hits the baffle 19 and then falls into the frame 20, and slides along the slideway 21 to the outside of the device. A garbage bin can be placed at the corresponding position for collection.

[0028] In the above embodiments, the first clamping mechanism includes a first vertical plate 6, a first cylinder 8 and a first clamping plate 10, and the second clamping mechanism includes a second vertical plate 7, a second cylinder 9 and a second clamping plate 11. The first vertical plate 6 and the second vertical plate 7 are respectively installed on the adjustable base. The first cylinder 8 and the second cylinder 9 are respectively installed on the sides of the first vertical plate 6 and the second vertical plate 7. The first clamping plate 10 and the second clamping plate 11 are respectively installed on the output ends of the first cylinder 8 and the second cylinder 9. The first clamping plate 10 faces the second clamping plate 11, and the shoveling cylinder 15 is installed on the side of the second clamping plate 11. The first cylinder 8 and the second cylinder 9 are respectively used to push the first clamping plate 10 and the second clamping plate 11 to clamp both sides of the injection molded product, and then the shoveling operation is carried out. Anti-slip structures 18 are provided on the facing surfaces of the first clamping plate 10 and the second clamping plate 11 to ensure the stability of clamping and avoid slippage. First guide holes 601 and second guide holes 701 are respectively provided on the first vertical plate 6 and the second vertical plate 7. First guide posts 12 and second guide posts 13 are respectively provided on the first clamping plate 10 and the second clamping plate 11. The first guide posts 12 and the second guide posts 13 are respectively slidably connected in the first guide holes 601 and the second guide holes 701. There is a pair of the first guide holes 601, the second guide holes 701, the first guide posts 12 and the second guide posts 13, and they respectively form a triangular structure with the cylinder rods of the first cylinder 8 and the second cylinder 9. The force is stable and the guiding is accurate during guiding, ensuring the stability of the clamping effect and the accuracy of the shoveling operation. Limit blocks 14 are provided at one ends of the first guide posts 12 and the second guide posts 13 to prevent the first guide posts 12 and the second guide posts 13 from disengaging from the first guide holes 601 and the second guide holes 701.

[0029] In the above embodiments, the adjustable base includes a lateral adjustment mechanism and a longitudinal adjustment mechanism. The first clamping mechanism and the second clamping mechanism are installed on the lateral adjustment mechanism, and the lateral adjustment mechanism is installed on the longitudinal adjustment mechanism, so that the lateral position and the longitudinal position of the first clamping mechanism and the second clamping mechanism can be adjusted to ensure accurate clamping of the injection molded product and accurate shearing operation. The lateral adjustment mechanism includes a sliding plate 2, a third guide post 204, and a lateral lead screw 4. First fixing plates 203 are provided at both ends of the sliding plate 2. The third guide post 204 is installed between the first fixing plates 203. Both ends of the lateral lead screw 4 are rotatably connected to the first fixing plates 203. Lateral guide holes and threaded holes 202 are provided on both the first vertical plate 6 and the second vertical plate 7. The third guide post 204 is slidably connected to the lateral guide holes on the first vertical plate 6 and the second vertical plate 7 respectively. The lateral lead screw 4 is in transmission connection with the threaded holes 202 on the first vertical plate 6 and the second vertical plate 7 respectively. The middle part of the lateral lead screw 4 is a cylindrical 401 structure, and the two ends of the cylindrical 401 structure are threads with opposite directions. Rotating the lateral lead screw 4 can make the first vertical plate 6 and the second vertical plate 7 approach or move away from each other, so as to control the first clamping plate 10 and the second clamping plate 11 to be as close as possible to the injection mold, adapt to the size of the injection mold, and at the same time avoid the influence of the excessive stroke of the cylinder rod on the clamping stability; The longitudinal adjustment mechanism includes a bottom plate 1 and a longitudinal lead screw 3. Second fixing plates 103 are provided at both ends of the bottom plate 1. Both ends of the longitudinal lead screw 3 are rotatably connected to the second fixing plates 103. A guide rail 101 is provided on the bottom plate 1, and a guide groove 201 is provided at the bottom of the sliding plate 2. The guide rail 101 is slidably connected to the guide groove 201. A threaded hole 202 is provided on the side of the sliding plate 2. The longitudinal lead screw 3 is in transmission connection with the threaded hole 202 of the sliding plate 2. Rotating the longitudinal lead screw 3 can make the shearing mechanism as close as possible to the injection molded product to ensure that the sprue is completely removed; A handle 5 is provided at one end of both the lateral lead screw 4 and the longitudinal lead screw 3 for convenient rocking adjustment; Countersunk holes 102 are provided on the bottom plate 1 for installation and positioning, and at the same time to avoid interference with the sliding plate 2.

[0030] Description of the working mode of the present utility model:

[0031] Install this device under the horizontal injection molding equipment. After pre-aligning, adjust the correspondence between this device and the injection mold in the horizontal and vertical directions, and then the bottom plate 1 can be locked. Produce an injection molded product through the injection molding equipment. Before demolding is performed, align and position the first clamping mechanism, the second clamping mechanism, and the cutting mechanism of this device. Shake the horizontal lead screw 4 to make the first clamping plate 10 and the second clamping plate 11 approach the injection molded product simultaneously. Stop before entering the mold closing area of the injection mold. Then, shake the vertical lead screw 3 to make the cutting mechanism approach the injection molded product and stop when the back surface where the plane of the cutting tool 17 abuts against the injection molded product. Jog the cutting cylinder 15 to push out the cutting tool 17 and cut off the sprue of the injection molded product. Observe whether the cut is smooth, whether the side where the sprue of the injection molded product is located will be scratched by the cutting tool 17, etc., and confirm whether the cut-off sprue can smoothly fall into the material receiving mechanism to ensure the smooth progress of the clamping and cutting functions. After the above adjustments, shake the horizontal lead screw 4 again to withdraw the cutting mechanism from the mold closing area to ensure non-interference with each other, and then trial production can be carried out.

[0032] During injection molding production, molten plastic is injected into the mold. After cooling to a certain temperature, the left and right molds are separated. At this time, the injection molded product is still nested on the mold, and the sprue is exposed. At this time, the first cylinder 8 and the second cylinder 9 respectively push the first clamping plate 10 and the second clamping plate 11 to jointly clamp the injection molded product. Then, the cutting cylinder 15 pushes the cutting tool 17 to extend and cut off the sprue. The cut-off sprue flies out and hits the baffle 19, and then falls into the slideway 21 through the frame 20 and is collected by the trash can at the end of the slideway 21, completing the work of cutting off the sprue of this device. After the cutting operation is completed, the first cylinder 8 and the second cylinder 9 pull the first clamping plate 10 and the second clamping plate 11 to reset, and at the same time, the cutting cylinder 15 pulls the cutting tool 17 to reset, and then the injection molded product can be demolded.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An incision device for an injection molded product, comprising an adjustable base, a first clamping mechanism, a second clamping mechanism, and a shoveling and cutting mechanism, characterized in that: The first clamping mechanism and the second clamping mechanism are respectively installed on the adjustable base. The first clamping mechanism and the second clamping mechanism are arranged oppositely. The shoveling and cutting mechanism is installed on the side of the second clamping mechanism. The shoveling and cutting mechanism includes a shoveling and cutting cylinder and a tool. The shoveling and cutting cylinder is installed on the side of the second clamping mechanism, and the tool is installed at the output end of the shoveling and cutting cylinder. A transfer plate is provided at the output end of the shoveling and cutting cylinder, and the tool is detachably connected to the side of the transfer plate.

2. The incision device for the injection molded product according to claim 1, characterized in that: The tool is located between the second clamping mechanism and the transfer plate. One side of the tool close to the second clamping mechanism is a plane, and the side close to the transfer plate is an arc surface.

3. The incision device for injection molded products according to claim 2, characterized in that: A material receiving structure is provided on the side of the first clamping mechanism. The material receiving structure can be moved below the tool. The material receiving structure is composed of a baffle, a frame and a slideway from top to bottom. The baffle is vertically connected to the first clamping plate in the horizontal direction. The baffle is located on the arc surface side of the tool, and the frame is located below between the tool and the baffle.

4. The cutting device for the injection molded product according to claim 1, characterized in that: The first clamping mechanism includes a first vertical plate, a first cylinder and a first clamping plate. The second clamping mechanism includes a second vertical plate, a second cylinder and a second clamping plate. The first vertical plate and the second vertical plate are respectively installed on the adjustable base. The first cylinder and the second cylinder are respectively installed on the sides of the first vertical plate and the second vertical plate. The first clamping plate and the second clamping plate are respectively installed at the output ends of the first cylinder and the second cylinder. The first clamping plate faces the second clamping plate, and the shoveling and cutting cylinder is installed on the side of the second clamping plate.

5. The incision device for injection molded products according to claim 4, characterized in that: Anti-slip structures are provided on the facing surfaces of the first clamping plate and the second clamping plate.

6. The cutting device for injection molded products according to claim 4, characterized in that: First guiding holes and second guiding holes are respectively provided on the first vertical plate and the second vertical plate. First guiding columns and second guiding columns are respectively provided on the first clamping plate and the second clamping plate. The first guiding column and the second guiding column are respectively slidably connected in the first guiding hole and the second guiding hole. Limit blocks are provided at one ends of the first guiding column and the second guiding column.

7. The cutting device for injection molded products according to claim 4, characterized in that: The adjustable base includes a horizontal adjustment mechanism and a vertical adjustment mechanism. The first clamping mechanism and the second clamping mechanism are installed on the horizontal adjustment mechanism, and the horizontal adjustment mechanism is installed on the vertical adjustment mechanism.

8. The incision device for the injection molded product according to claim 7, characterized in that: The horizontal adjustment mechanism includes a sliding plate, third guiding columns and a horizontal lead screw. First fixing plates are provided at both ends of the sliding plate. The third guiding columns are installed between the first fixing plates. The two ends of the horizontal lead screw are rotatably connected to the first fixing plates. Horizontal guiding holes and threaded holes are provided on both the first vertical plate and the second vertical plate. The third guiding columns are respectively slidably connected to the horizontal guiding holes on the first vertical plate and the second vertical plate. The horizontal lead screw is respectively in transmission connection with the threaded holes on the first vertical plate and the second vertical plate. The middle part of the horizontal lead screw is a cylindrical structure, and the two ends of the cylindrical structure have threads in opposite directions. The first vertical plate and the second vertical plate can approach or move away from each other.

9. The incision device for the injection molded product according to claim 8, characterized in that: The vertical adjustment mechanism includes a bottom plate and a vertical lead screw. Second fixing plates are provided at both ends of the bottom plate. The two ends of the vertical lead screw are rotatably connected to the second fixing plates. A guide rail is provided on the bottom plate, and a guide groove is provided at the bottom of the sliding plate. The guide rail is slidably connected to the guide groove. A threaded hole is provided on the side of the sliding plate, and the vertical lead screw is in transmission connection with the threaded hole of the sliding plate.

10. The incision device for the injection molded product according to claim 9, characterized in that: Handles are provided at one ends of both the horizontal lead screw and the vertical lead screw. Countersunk holes are provided on the bottom plate.

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