Internal cutting device for injection mold

Abstract

The utility model discloses an injection mold internal cutting device which comprises a mold, a plurality of runners are arranged on the surface of the mold, cutter grooves are formed in the tail ends of the runners, buffer columns are installed at the four corners of the lower end of the mold, a cutter supporting plate is fixed to the lower ends of the buffer columns, and a cutter adjusting mechanism is arranged on the surface of the upper end of the cutter supporting plate. And a cutter fixing seat is arranged at the upper end of the cutter adjusting mechanism, an inner cutter is installed at the upper end of the cutter fixing seat and penetrates through the cutter groove to be slidably connected with the mold, an upper ejection block is arranged at the lower end of the cutter supporting plate, and a cutting-off driving mechanism is installed at the lower end of the upper ejection block. According to the utility model, the cutter support plate is matched with the cutting driving mechanism, so that the synchronous operation of the plurality of inner cutters is realized, the positions of the inner cutters can be finely adjusted through the cutter adjusting mechanism, the positions can be freely changed according to different molds, the applicability is good, the inner cutters can be quickly disassembled and assembled through the cutter fixing seat, and the flexibility is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technology field especially relates to a kind of injection mould in cutting device. BACKGROUND

[0002] The in-mold hot cutting technology is a technology that separates the product from the runner port when the product is not ejected from the mold. After the product in the mold cavity is pressure-kept, the cutter is ejected to separate the product from the water port. The cutter remains in the ejected state until 2 seconds before the product is cooled. Then the cutter is withdrawn, and the mold is opened. The product and the runner port are in a separated state.

[0003] The existing injection mold cutting device needs to be equipped with a cutting device for each runner port. Each cutting device is equipped with a driving hydraulic cylinder. The multiple driving hydraulic cylinders increase the manufacturing cost of the mold. The cutter is generally fixed and installed, and cannot be freely changed in position according to different molds. The process of replacing the cutter is complicated, and the adaptability is poor. Therefore, further improvement is needed. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an injection mold cutting device that is easy to install and has good adaptability, to solve the problem of fixed cutter installation, inability to freely change the position according to different molds, complicated process of replacing the cutter, poor adaptability, and high cost.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mold cutting device, comprising a mold, the mold surface is provided with a plurality of flow channels, the flow channel end is provided with a cutter slot, the mold lower end four corners are installed with buffer columns, the buffer column lower end is fixed with cutter support plate, the cutter support plate upper end surface is provided with cutter adjusting mechanism, the cutter adjusting mechanism upper end is provided with cutter fixing seat, the cutter fixing seat upper end is installed with inner cutter, the inner cutter passes through cutter slot and is slidably connected with the mold.

[0006] The lower end of the cutter support plate is provided with an upper block, the upper block lower end is installed with a cutting drive mechanism, the cutting drive mechanism comprises a lower block, the lower block is in contact with the upper block, the lower block right side is provided with an ejector oil cylinder.

[0007] Preferably, the buffer column includes an upper limiting cylinder, the upper limiting cylinder is fixed at the lower end of the cutter support plate, the upper limiting cylinder is provided with a damping rod inside, the damping rod is provided with a buffer spring outside, and the buffer spring lower end is provided with a pad seat.

[0008] Preferably, the cutter adjusting mechanism comprises first adjusting grooves arranged on both sides of the upper end of the cutter support plate, a strip-shaped seat slidingly arranged in the first adjusting grooves, the strip-shaped seat being fixedly connected with the first adjusting grooves through screws, second adjusting grooves arranged on the side walls of the strip-shaped seat, and support sliding seats arranged on the strip-shaped seat and the second adjusting grooves and fixedly connected with the second adjusting grooves through screws.

[0009] Preferably, the cutter fixing seat comprises a support shell, sliding clamping blocks arranged on the two side walls of the support shell, connecting plates arranged at the ends of the sliding clamping blocks, return springs arranged between the connecting plates, triangular top blocks one fixedly arranged on the outer lower ends of the connecting plates, triangular top blocks two arranged in contact with the front surfaces of the triangular top blocks one, connecting frames arranged on the front surfaces of the triangular top blocks two, and unlocking buttons arranged on the front surfaces of the connecting frames.

[0010] Preferably, the inner cutter is provided with a locking base at the lower end, and the locking base is provided with a locking clamping groove in the inside.

[0011] Preferably, the inner cutter is provided with a blocking ring.

[0012] Compared with the prior art, the injection mold inner cutting device has the beneficial effects that: the injection mold inner cutting device realizes the synchronous operation of multiple inner cutters through the cutter support plate, the upper top block, the lower top block and the ejecting oil cylinder, can synchronously cut off multiple flow channel openings, can finely adjust the position of the inner cutter through the cutter adjusting mechanism, can freely change the position according to different molds, has good applicability, and can realize the quick disassembly of the inner cutter through the cutter fixing seat by only pressing the unlocking button, and has good flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0015] Figure 2 It is a schematic diagram of the front structure of the present application.

[0016] Figure 3 It is a schematic diagram of the cutter fixing seat structure of the present application.

[0017] Figure 4 It is a schematic diagram of the Figure 1 It is an enlarged structure schematic diagram of the A place in the middle.

[0018] Explanation of reference numerals in the drawing: 1, mold; 2, flow channel; 3, cutter slot; 4, cutter support plate; 41, upper top block; 5, buffer column; 51, upper limit cylinder; 52, damping rod; 53, buffer spring; 54, pad seat; 6, cutter adjusting mechanism; 61, first adjusting groove; 62, strip-shaped seat; 63, second adjusting groove; 64, supporting sliding seat; 7, cutter fixing seat; 71, supporting shell; 72, sliding clamping block; 73, connecting plate; 74, return spring; 75, triangular top block one; 76, triangular top block two; 77, connecting frame; 78, unlocking button; 8, inner cutter; 81, locking base; 82, locking clamping groove; 83, plugging ring; 9, cutting-off driving mechanism; 91, lower top block; 92, ejection oil cylinder. DETAILED DESCRIPTION

[0019] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-4 The present application provides an embodiment: an inner cutting device of injection mold, comprising a mold 1, the surface of the mold 1 is provided with a plurality of flow channels 2, the flow channels 2 are provided with cutter slots 3 at the end, the lower end of the mold 1 is provided with buffer columns 5 at four corners, the buffer columns 5 are fixed with cutter support plates 4 at the lower end, the upper end surface of the cutter support plates 4 is provided with cutter adjusting mechanisms 6, the upper end of the cutter adjusting mechanisms 6 is provided with cutter fixing seats 7, the upper end of the cutter fixing seats 7 is installed with inner cutters 8, the inner cutters 8 are provided with plugging rings 83, the inner cutters 8 are slidably connected with the mold 1 through the cutter slots 3, the lower end of the cutter support plates 4 is provided with upper top blocks 41, the lower end of the upper top blocks 41 is installed with cutting-off driving mechanisms 9, the cutting-off driving mechanisms 9 comprise lower top blocks 91, the lower top blocks 91 are in contact with the upper top blocks 41, the right side of the lower top blocks 91 is provided with ejection oil cylinders 92.

[0021] In combination with the above structural features, when the present application works, the cutter support plates 4 cooperate with the upper top blocks 41, the lower top blocks 91 and the ejection oil cylinders 92 to realize the synchronous operation of the plurality of inner cutters 8, the plurality of flow channels 2 can be synchronously cut off, the position of the inner cutters 8 can be finely adjusted through the cutter adjusting mechanisms 6, the position can be freely changed according to different molds 1, the applicability is good, the inner cutters 8 can be quickly disassembled through the cutter fixing seats 7, the flexibility is good.

[0022] Please refer to Figures 1-4The buffer column 5 comprises an upper limiting cylinder 51 fixed at the lower end of the four corners of the cutter support plate 4, a damping rod 52 arranged in the upper limiting cylinder 51, a buffer spring 53 arranged outside the damping rod 52, and a pad seat 54 arranged at the lower end of the buffer spring 53.

[0023] In combination with the above structural features, during operation, the buffer column 5 plays a buffering role, avoiding rigid collision between the cutter support plate 4 and the mold 1, and the damping rod 52 cooperates with the buffer spring 53 to absorb kinetic energy when the cutter support plate 4 moves, thus achieving good buffering effect.

[0024] Please refer to Figures 1-4 The cutter adjusting mechanism 6 comprises a first adjusting groove 61 arranged at the upper end of the two sides of the cutter support plate 4, a strip-shaped seat 62 slidably arranged in the first adjusting groove 61, a second adjusting groove 63 arranged on the side wall of the strip-shaped seat 62, and a support sliding seat 64 arranged on the strip-shaped seat 62 and the second adjusting groove 63, and the support sliding seat 64 is fixedly connected with the second adjusting groove 63 through screws.

[0025] In combination with the above structural features, during operation, the position of the inner cutter 8 can be finely adjusted through the cutter adjusting mechanism 6, and the position can be freely changed according to different molds 1, the strip-shaped seat 62 can slide on the first adjusting groove 61 to realize adjustment of the horizontal position of the strip-shaped seat 62, and the support sliding seat 64 can slide on the second adjusting groove 63 to realize adjustment of the vertical position of the support sliding seat 64.

[0026] Please refer to Figures 1-4 The cutter fixing seat 7 comprises a support shell 71, sliding clamping blocks 72 arranged on the side walls of the support shell 71, connecting plates 73 arranged at the ends of the sliding clamping blocks 72, return springs 74 arranged between the connecting plates 73, triangular top blocks one 75 fixed on the outer side of the lower end of the connecting plates 73, triangular top blocks two 76 arranged on the front surface of the triangular top blocks one 75, connecting frames 77 arranged on the front surface of the triangular top blocks two 76, unlocking buttons 78 arranged on the front surface of the connecting frames 77, a locking base 81 arranged at the lower end of the inner cutter 8, and locking clamping grooves 82 arranged in the locking base 81 and engaged with the sliding clamping blocks 72.

[0027] In combination with the above structural features, during operation, the locking base 81 can be inserted into the upper end of the support shell 71 to engage the locking clamping grooves 82 with the sliding clamping blocks 72, thereby fixing the inner cutter 8, when disassembly is needed, the unlocking buttons 78 are pressed to drive the triangular top blocks two 76 to move forward through the connecting frames 77, the connecting plates 73 are moved inward through the triangular top blocks one 75, and finally the sliding clamping blocks 72 are moved inward to disengage from the locking clamping grooves 82, and then the locking base 81 can be pulled out upward.

[0028] Working principle: the utility model discloses in use, through cutter support plate 4 cooperation upper top block 41, lower top block 91 and ejection cylinder 92, realize the synchronous operation of multiple internal cutter 8, can cut off multiple runner 2 mouth synchronously, through cutter adjusting mechanism 6, can carry out the fine adjustment of the position of internal cutter 8, can change position freely according to different mould 1, good applicability, through setting cutter fixed base 7, realize the quick disassembly of internal cutter 8, good flexibility;

[0029] Wherein, the strip-shaped seat 62 can slide on the first adjusting groove 61 to realize the adjustment of the horizontal position of the strip-shaped seat 62, and the supporting sliding seat 64 can slide on the second adjusting groove 63 to realize the adjustment of the longitudinal position of the supporting sliding seat 64; when the internal cutter 8 is installed, the locking base 81 can be inserted into the upper end of the supporting shell 71 downwards, so that the locking clamping groove 82 and the sliding clamping block 72 are engaged with each other, and the fixing of the internal cutter 8 is realized; when disassembly is needed, the unlocking button 78 is pressed, the triangular lifting block two 76 is driven to move forward through the connecting frame 77, the connecting plate 73 is moved inwards through the triangular lifting block one 75, and finally the sliding clamping block 72 is moved inwards to be separated from the locking clamping groove 82; at this time, the locking base 81 can be pulled out upwards.

[0030] In the description of the utility model, it should be explained that, unless there is definite stipulation and limitation, the terms "mounting", "connecting" and "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The device embodiments described above are only schematic, wherein the units illustrated as separate components can or can not be physically separate, and the components illustrated as units can or can not be physical units, that is, they can be located in one place, or distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0032] Finally, it should be pointed out that: the above examples are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing examples, or make equivalent replacement to some technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiments of the utility model.

Claims

1. An injection mold internal cutting device, characterized in that: The utility model relates to a cutting device for cutting machine, including mould (1), a plurality of flow channels (2) are provided with cutting knife groove (3) at the end of the flow channel (2), the lower end of the mould (1) four corners is equipped with buffer column (5), the lower end of buffer column (5) is fixed with cutting knife support plate (4), the upper end surface of cutting knife support plate (4) is equipped with cutting knife adjusting mechanism (6), the upper end of cutting knife adjusting mechanism (6) is equipped with cutting knife fixed seat (7), the inner cutting knife (8) of cutting knife fixed seat (7) upper end is installed, and the inner cutting knife (8) is slidably connected with mould (1) through cutting knife groove (3); The upper end of cutting knife support plate (4) is equipped with upper top block (41), and the lower end of upper top block (41) is installed with cutting off driving mechanism (9), and cutting off driving mechanism (9) includes lower top block (91), and lower top block (91) is connected with upper top block (41), and the right side of lower top block (91) is equipped with ejection oil cylinder (92).

2. An in-line cutting apparatus for injection molded articles as defined in claim 1, wherein: The buffer column (5) includes an upper limiting cylinder (51) fixed to the lower end of the cutting knife support plate (4) on four corners, a damping rod (52) is arranged inside the upper limiting cylinder (51), a buffer spring (53) is arranged outside the damping rod (52), and a pad (54) is arranged at the lower end of the buffer spring (53).

3. An in-line cutting apparatus for injection molded articles as defined in claim 1, wherein: The cutting knife adjusting mechanism (6) includes a first adjusting groove (61) arranged on both sides of the upper end of the cutting knife support plate (4), a strip-shaped seat (62) slidably installed in the first adjusting groove (61), the strip-shaped seat (62) fixedly connected with the first adjusting groove (61) through screws, a second adjusting groove (63) arranged on the side wall of the strip-shaped seat (62), a supporting sliding seat (64) arranged on the strip-shaped seat (62) and the second adjusting groove (63), and the supporting sliding seat (64) fixedly connected with the second adjusting groove (63) through screws.

4. An in-line cutting apparatus for injection molded articles as defined in claim 1, wherein: The cutting knife fixed seat (7) includes a supporting shell (71), a sliding clamping block (72) arranged on the two side walls of the supporting shell (71), a connecting plate (73) arranged at the end of the sliding clamping block (72), a reset spring (74) arranged between the connecting plates (73), a triangular top block one (75) fixedly arranged on the outer side of the lower end of the connecting plate (73), a triangular top block two (76) arranged in contact on the front surface of the triangular top block one (75), a connecting frame (77) arranged on the front surface of the triangular top block two (76), and an unlocking button (78) arranged on the front surface of the connecting frame (77).

5. An in-line cutting apparatus for injection molded articles as defined in claim 4, wherein: The inner cutting knife (8) is provided with a locking base (81) at the lower end, and the locking base (81) is provided with a locking clamping groove (82) inside.

6. An in-line cutting apparatus for injection molded articles as defined in claim 1, wherein: The inner cutting knife (8) is provided with a blocking ring (83).

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