An anti-collision mechanism for metal mold production

Abstract

The present invention provides an anti-collision mechanism for metal mold production, including a bottom plate and positioning blocks fixed on both sides of the bottom plate, a sliding seat and a small slider are arranged between the two positioning blocks, a pressure plate, a shovel base and an inclined guide column are arranged on the sliding seat, a T-shaped push block is arranged between the sliding seat and the small slider, sliding guide blocks are arranged on both sides of the sliding seat, limit guide blocks are arranged on both sides of the small slider, limit blocks are arranged on the upper ends of the sliding guide blocks and the limit guide blocks, and a telescopic top block arranged corresponding to the sliding guide block is also arranged on the bottom plate, and an inclined position matching the inclined guide column is opened in the sliding seat. The beneficial effects of the present invention: the structural design of realizing the primary delay and the secondary delay of the secondary position movement by utilizing the sliding distance between the primary position and the secondary position ensures that the mold is staggered with the ejector mechanism during the mold closing and mold opening process, and moves in sequence, preventing the side-drawing slider from being in place in advance during mold closing and colliding, avoiding mold damage and affecting production progress.

Description

Technical Field

[0001] The invention mainly relates to the technical field of molds, and in particular to an anti-collision mechanism for metal mold production. Background Art

[0002] Moulds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. In short, moulds are tools used to make molded objects. This tool is composed of various parts, and different moulds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry". There are many types of moulds. According to the processing object and processing technology, they can be divided into: moulds for processing metals, moulds for processing non-metals and powder metallurgy, including plastic moulds (such as two-color moulds, compression moulds and extrusion moulds, etc.), rubber moulds and powder metallurgy moulds, etc. According to the structural characteristics, moulds can be divided into flat punching moulds and cavity moulds with space.

[0003] The mold is designed according to the molded product, especially the mold used to process metal, such as the die-casting mold used to manufacture castings. Since the internal structure of the casting product is complex, multiple directions need to cooperate with corresponding parts. Therefore, when designing the mold structure, if the internal hole distance is deep, a hydraulic core pulling mechanism is used for demolding. If the side fine-tuning structure of the product is small, the inlay method is used to perform side slider core pulling and demolding. The side core pulling mechanism can also realize the smooth demolding of the product inverted position.

[0004] The inventor discovered the following defects during the operation of the specific embodiment:

[0005] Since the existing side core pulling mechanism generally has no locking limit structure, the side pull slider often arrives in place prematurely during mold closing, causing the side pull slider to collide with the movable mold, resulting in mold damage or even scrapping, which not only affects the normal progress of production, but also increases the manufacturing cost of the product.

[0006] At present, the anti-collision method usually adopts the structural design of slider delay, which generally includes spring delay or block delay. However, spring delay is suitable for core pulling mechanisms with large clamping force or small sliders. The spring will produce strength fatigue after a certain service life and there is a risk of failure. It is necessary to regularly check the use of the spring and replace it. Block delay is to make a straight delay on the shovel base, and use a delay block or a mechanical block to ensure the safety and reliability of the core pulling sequence. However, the delay block is generally suitable for some large sliders and is not very applicable.

[0007] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Summary of the invention

[0008] 1. Technical problems to be solved by the invention:

[0009] The present invention provides an anti-collision mechanism for metal mold production, which is used to solve the technical problems existing in the above-mentioned background technology.

[0010] 2. Technical solution:

[0011] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The cam is an angular channel that is configured to channel the rotation of the guide rails to the sides of the slide block, and the cam is configured to channel the rotation of the guide rails to the sides of the slide block.

[0012] Furthermore, a dovetail groove 1 and a sliding groove are respectively provided on both sides of the limiting guide block, the limiting guide block is slidably connected to the positioning block through the dovetail groove 1, the upper end of the limiting guide block is fixedly connected to the sliding guide block, and the guide pin is slidably connected to the sliding groove.

[0013] Furthermore, the lower end of the sliding guide block is fixedly connected to the sliding seat, and a dovetail groove 2 with the same structure as the dovetail groove 1 is provided on the side of the sliding guide block away from the sliding seat, and is slidingly connected to the positioning block through the dovetail groove 2, and a top groove is provided at the lower end of the sliding guide block.

[0014] Furthermore, the telescopic top block includes a positioning column, a spring pin is provided at the lower end of the positioning column, a wedge block is provided on the side of the positioning column close to the sliding seat, the positioning column and the wedge block are an integrally formed structure, the upper end of the positioning column is arranged corresponding to the top groove, and the spring pin is embedded in the bottom plate.

[0015] Furthermore, the sliding seat is provided with sliding seat bevel grooves on both sides, and the wedge-shaped block is embedded in the sliding seat bevel grooves and is slidably connected thereto.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0018] The present invention is reasonably designed, and utilizes the sliding distance between the primary slide and the secondary slide to realize the structural design of the primary delay and the secondary slide movement in coordination with the secondary delay, thereby ensuring that the mold is staggered with the ejector mechanism during the mold closing and mold opening process, and moves in sequence, thereby preventing the side-drawing slide from being in place in advance during mold closing, causing collision, and avoiding mold damage, thereby affecting production progress;

[0019] By setting an inclined guide column with a return delay, a certain delay effect can be achieved before the sliding seat ends its retreat and when it starts to reset. The sliding distance between the small slider and the T-shaped push block is used to achieve a primary sliding action. The sliding distance between the telescopic ejector block and the sliding block is used to achieve a secondary sliding delay effect. The sliding action of the slider is staggered with the ejector mechanism to prevent the slider from hitting the ejector, thereby avoiding damage to the mold, affecting production progress, and causing losses to the company.

[0020] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle;

[0023] Figure 3 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the local structure of the present invention;

[0025] Figure 5 It is another exploded schematic diagram of a local structure of the present invention.

[0026] Reference numerals:

[0027] 1. Bottom plate; 101. Positioning groove; 2. Positioning stopper; 3. Sliding seat; 301. Oblique position; 3011. Sliding position inclined surface 1; 3012. Sliding position inclined surface 2; 3013. Sliding position vertical surface 1; 3014. Sliding position vertical surface 2; 302. Sliding seat inclined groove; 4. Small slider; 401. Guide pin; 5. Press plate; 501. Guide groove; 6. Shovel base; 7. Oblique guide column; 701. Upper Buffering part; 702, lower buffering part; 703, inclined part of the slide; 8, T-shaped push block; 801, inclined guide rail; 9, sliding guide block; 901, dovetail groove 2; 902, top groove; 10, limiting guide block; 1001, dovetail groove 1; 1002, sliding groove; 11, limiting block; 12, telescopic top block; 1201, positioning column; 1202, spring pin; 1203, wedge block. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like 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 a direct connection, or it can be an indirect connection 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 invention can be understood according to specific circumstances. Example

[0032] See attached Figure 1-5 A collision prevention mechanism for metal mold production comprises a bottom plate 1 and positioning blocks 2 fixed on both sides of the bottom plate 1, a sliding seat 3 and a small slider 4 are arranged between the two positioning blocks 2, a pressing plate 5, a shovel base 6 and an inclined guide column 7 are arranged on the sliding seat 3, a T-shaped push block 8 is arranged between the sliding seat 3 and the small slider 4, sliding guide blocks 9 are arranged on both sides of the sliding seat 3, and limiting guide blocks 10 are arranged on both sides of the small slider 4. Limiting blocks 11 are arranged on the upper ends of the sliding guide blocks 9 and the limiting guide blocks 10, a telescopic top block 12 arranged corresponding to the sliding guide blocks 9 is also arranged on the bottom plate 1, and an inclined position 301 matching the inclined guide column 7 is opened in the sliding seat 3.

[0033] See attached Figure 1-5 The inclined position 301 includes a position inclined surface 1 3011, a position inclined surface 2 3012, a position vertical surface 1 3013 and a position vertical surface 2 3014. The inclined position 301 is connected from top to bottom. The inclined angle of the position inclined surface 1 3011 is consistent with the inclined angle of the inclined guide column 7. The inclined angle of the position inclined surface 2 3012 is greater than the inclined angle of the position inclined surface 1 3011. The inclined portion 703 of the inclined guide column 7 is consistent with the inclined angle of the position inclined surface 1 3011. The inclined position 301 is formed by the position inclined surface 1 3011, the position vertical surface 1 3013, the position inclined surface 2 3012 and the position vertical surface 2 3014. It consists of two parts, the upper part is the moving part, and the lower part is the delay part. The larger inclined slide slope 2 3012 is used to reserve an escape space for the lower buffer part 702 of the inclined guide column 7; when the upper buffer part 701 enters the moving part, one of the vertical side surfaces of the upper buffer part 701 slides close to the slide vertical surface 1 3013, and when the lower buffer part 702 enters the delay part, one of the vertical side surfaces of the lower buffer part 702 slides close to the slide vertical surface 2 3014, and when the slide slope 703 enters the resting position 301, one of the inclined side surfaces of the slide slope 703 always slides close to the slide slope 1 3011.

[0034] See attached Figure 1-5A positioning groove 101 and a guide groove 501 corresponding to the oblique position 301 are respectively provided on the bottom plate 1 and the pressure plate 5. The width of the positioning groove 101 is consistent with the width of the bottom end of the oblique position 301. The positioning groove 101 is used to accommodate the lower buffer portion 702 of the oblique guide column 7. The width of the guide groove 501 is consistent with the width of the oblique guide column 7, and is used to accommodate the upper buffer portion 701 of the oblique guide column 7 to guide and fix the upper buffer portion 701.

[0035] See attached Figure 1-5 The inclined guide column 7 passes through the guide groove 501, the inclined position 301 and the positioning groove 101 respectively. The inclined guide column 7 includes an upper buffer portion 701, a lower buffer portion 702 and a position inclined portion 703. The upper buffer portion 701 and the lower buffer portion 702 are both perpendicular to the position inclined portion 703. The position inclined portion 703 passes through the inclined position 301. The movement stroke of the position inclined portion 703 is greater than that of the upper buffer portion 701 and the lower buffer portion 702. The lower buffer portion 702 is used for delaying the sliding seat 3 during the mold opening and closing processes.

[0036] See attached Figure 1-5 One end of the T-shaped push block 8 is fixedly connected to the sliding seat 3, and an inclined guide rail 801 is provided on the T-shaped push block 8. The upper end surface of the inclined guide rail 801 is inclined and is slidably connected to the small slider 4. The lower end of the T-shaped push block 8 is flush with the sliding seat 3. When the sliding seat 3 drives the T-shaped push block 8 to open the mold, the small slider 4 moves together with the T-shaped push block 8. The small slider 4 is T-shaped, and the lower end of the small slider 4 is embedded in the inclined guide rail 801 and slidably connected thereto. The width of both sides of the small slider 4 is greater than the width of both sides of the T-shaped push block 8. Both sides of the small slider 4 are also provided Guide pin 401, when the small slider 4 slides backward until it hits the limit block 11, the limit block 11 blocks the small slider 4, so that it cannot continue to slide with the T-shaped push block 8. As the T-shaped push block 8 continues to separate from the small slider 4, the small slider 4 slides out in the opposite direction along the inclined guide rail 801 of the T-shaped push block 8, and the sliding distance is half of the total length of the inclined guide rail 801. When sliding out in the opposite direction, the guide pins 401 on both sides of the small slider 4 slide forward and downward along the sliding groove 1002 on the limit guide block 10.

[0037] See attached Figure 1-5, a dovetail groove 1001 and a sliding groove 1002 are respectively provided on both sides of the limit guide block 10, and the limit guide block 10 is slidably connected with the positioning block 2 through the dovetail groove 1001, and the two sides of the limit guide block 10 are respectively slidably connected with the positioning block 2 and the small slider 4, and the upper end of the limit guide block 10 is fixedly connected with the sliding guide block 9, and the guide pin 401 is slidably connected with the sliding groove 1002. When the mold is opened, the small slider 4 is blocked by the limit block 11 during the retreat process and stays in place and remains motionless, while the T-shaped push block 8 continues to move backward. Among them, after the small slider 4 stops sliding due to the blockage, the travel distance of the T-shaped push block 8 from the small slider 4 is less than the small slider 4 itself, and half of the overall length of the small slider 4 is separated from the T-shaped push block 8, so the small slider 4 and the T-shaped The push block 8 is not completely disengaged; during mold closing, the T-shaped push block 8 moves toward the small slider 4, scooping up the small slider 4 until the rear end of the small slider 4 hits the end of the inclined guide rail 801, and the small slider 4 and the T-shaped push block 8 are completely reset, realizing the movement delay of the small slider 4 during the mold closing process; in the process of the small slider 4 disengaging from the T-shaped push block 8 or being scooped up and reset by the T-shaped push block 8, since the inclined guide rail 801 of the T-shaped push block 8 has an inclined angle, the small slider 4 will float up and down. At this time, the small slider 4 is guided and slid along the sliding groove 1002 by the guide pins 401 on both sides thereof. The sliding groove 1002 has a downward tilt angle, which is consistent with the up and down floating angle of the small slider 4, thereby realizing the sliding guiding effect on the small slider 4 and ensuring that the sliding coaxiality of the small slider 4 is consistent with the sliding seat 3.

[0038] See attached Figure 1-5 The lower end of the sliding guide block 9 is fixedly connected to the sliding seat 3, and a dovetail groove 2 901 with the same structure as the dovetail groove 1 1001 is provided on the side of the sliding guide block 9 away from the sliding seat 3, and the dovetail groove 2 901 is arranged above the dovetail groove 1 1001, and the length of the dovetail groove 1 1001 is less than the length of the dovetail groove 2 901, and the positioning block 2 has a sliding groove matching the dovetail groove 1 1001 and the dovetail groove 2 901, and is slidably connected with the positioning block 2 through the dovetail groove 2 901, and the overall length of the sliding guide block 9 is less than the positioning block 2, and the upper end of the sliding guide block 9 does not contact the limit block 11. During the movement of the sliding seat 3, the sliding guide block 9 drives both sides of it to slide, so as to ensure the coaxiality of the sliding position of the sliding seat 3, and a top groove 902 is provided at the lower end of the sliding guide block 9, and the top groove 902 is located at the end of the bottom plate 1, away from the small slider 4.

[0039] See attached Figure 1-5The telescopic top block 12 includes a positioning column 1201, a spring pin 1202 is provided at the lower end of the positioning column 1201, a wedge block 1203 is provided on the side of the positioning column 1201 close to the sliding seat 3, the positioning column 1201 and the wedge block 1203 are an integrally formed structure, the upper end of the positioning column 1201 is arranged corresponding to the top groove 902, the spring pin 1202 is embedded in the bottom plate 1, the telescopic top block 12 slides back and forth with the sliding seat 3, and floats up and down with the sliding distance of the sliding seat inclined groove 302. When floating up, the positioning column 1201 is pushed up, and at this time, the top groove 902 opened at the lower end of the sliding guide block 9 is butted with the positioning column 1201, and the upper end of the positioning column 1201 is inserted into the top groove 902 to realize the sliding The retreat delay effect of the moving seat 3, the sliding seat 3 is provided with a sliding seat bevel groove 302 on both sides, the wedge block 1203 is embedded in the sliding seat bevel groove 302 and is slidably connected thereto, and the upper end surface of the wedge block 1203 moves close to the top of the sliding seat bevel groove 302 through the spring pin 1202, so there is a clearance distance between the lower end surface of the wedge block 1203 and the bottom end of the sliding seat bevel groove 302. In this embodiment, the downward sliding distance of the sliding seat bevel groove 302 (that is, the height difference between the two ends of the sliding seat bevel groove 302) is L1, and the clearance distance between the lower end surface of the wedge block 1203 and the bottom end of the sliding seat bevel groove 302 is L2. In this embodiment, L1<L2, the depth distance of the top groove 902 is L3, and in this embodiment, L2>L3.

[0040] In this embodiment, the bottom end of the bottom plate 1 and the positioning block 2 are connected to the fixed mold, the top end of the pressing plate 5, the shovel base 6 and the inclined guide column 7 are connected to the movable mold, and the front end of the small slider 4 is used to connect the molding insert. The specific operation steps are as follows:

[0041] When the mold is opened, the movable mold drives the pressing plate 5, the shovel base 6 and the inclined guide column 7 to move upward, and the inclined guide column 7 is gradually withdrawn from the inclined position 301 of the sliding seat 3. Through the structural cooperation between the inclined guide column 7 and the inclined position 301, the sliding seat 3 is delayed for the first time through the lower buffer part 702 when the inclined guide column 7 withdraws; the inclined portion 703 of the sliding position gradually withdraws from the inclined position 301, and the sliding seat 3 drives the T-shaped push block 8 and the small sliding block 4 to retreat. The small sliding block 4 retreats to the limit block 11 and is blocked, and remains motionless to achieve a retreat through the small sliding block 4; the inclined portion 703 of the sliding position continues to withdraw from the inclined position 301 until the lower buffer part 702 enters Enter the oblique position 301, at this time, the sliding seat 3 completes the secondary retreat, and the sliding distance formed between the primary retreat and the secondary retreat is used to realize the primary retreat delay of the sliding seat 3. The sliding seat 3 drives the sliding guide block 9 to move into place and completes docking with the telescopic top block 12 to realize the secondary retreat delay of the sliding seat 3. The sliding seat 3 drives the small slider 4 to move outward along the oblique guide column 7 to complete the side core pulling action of the mold; the small slider 4 completes the core pulling action when the mold is opened, and reaches the maximum position limited by the sliding seat 3. Finally, the terminal delay is realized through the telescopic top block 12 to prevent the slider and the small slider 4 from hitting the mold ejector pin.

[0042] When the mold is closed, the movable mold drives the pressure plate 5, the shovel base 6 and the inclined guide column 7 to move downward, and the inclined guide column 7 is inserted into the inclined position 301. First, the lower buffer part 702 enters the inclined position 301 to prepare for the mold closing and resetting of the sliding seat 3, thereby realizing a reset delay during the mold closing process; then the inclined portion 703 of the sliding position gradually enters the inclined position 301, and as the inclined portion 703 of the sliding position moves downward, the sliding seat 3 moves in the mold closing direction, and the telescopic top block 12 descends with the sliding seat inclined groove 302 on the side of the sliding seat 3 and disengages from the sliding guide block 9, and the sliding seat 3 continues to reset, so that the T-shaped push block 8 moves toward the small slider 4, and the secondary reset delay during the mold closing process is realized by the sliding distance between the T-shaped push block 8 and the small slider 4. After the small slider 4 is shoveled up, it forms a whole with the T-shaped push block 8 and continues to reset until the mold closing is completed.

[0043] In summary, in this embodiment, the sliding distance of the inclined portion 703 is N1, the sliding distance between the small slider 4 and the limit block 11 is N2, and the sliding distance between the telescopic top block 12 and the inclined slot 302 of the slide seat is N3. During the sliding process, N1=N2+N3; and N3 is greater than N2, N3 is the large sliding position, N2 is the small sliding position, and the small sliding position N2 and the large sliding position N3 move in sequence during the movement process to achieve a delay effect and complete the final demoulding function, wherein the contact surface between the small slider 4 and the T-shaped push block 8, and the contact surface between the shovel base 6 and the sliding seat 3 are provided with wear-resistant blocks;

[0044] Through the structural design of one sliding movement with one delay, and two sliding movements with two delays, it is achieved that in the open mold state, the slider retreats first and then the ejector is demolded, and in the closed mold state, the ejector retreats first and then the slider moves. This ensures that during the mold closing and opening process, the slider and the ejector mechanism are staggered and move in sequence to avoid hitting the ejector and prevent the side-drawing slider from being in place prematurely during mold closing and colliding, thereby avoiding mold damage and affecting production progress.

[0045] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. 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 present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An anti-collision mechanism for metal mold production, comprising a bottom plate and positioning blocks fixed on both sides of the bottom plate, characterized in that: A sliding seat and a small sliding block are provided between the two positioning blocks, and a pressure plate, a shovel base and an inclined guide column are provided on the sliding seat. A T-shaped push block is provided between the sliding seat and the small sliding block. Sliding guide blocks are provided on both sides of the sliding seat, and limit guide blocks are provided on both sides of the small sliding block. Limit blocks are provided on the upper ends of the sliding guide blocks and the limit guide blocks. A telescopic top block arranged corresponding to the sliding guide blocks is also provided on the bottom plate. An inclined position matching the inclined guide column is provided in the sliding seat, and the inclined position includes a first position inclined surface, a second position inclined surface, a first position vertical surface and a second position vertical surface. The inclination angle of the first position inclined surface is consistent with the inclination angle of the inclined guide column, and the inclination angle of the second position inclined surface is greater than the inclination angle of the first position inclined surface, and the bottom plate and the pressure plate are respectively A positioning groove and a guide groove corresponding to the oblique moving position are provided, the width of the positioning groove is consistent with the width of the bottom end of the oblique moving position, the width of the guide groove is consistent with the width of the oblique guide column, the oblique guide column respectively passes through the guide groove, the oblique moving position and the positioning groove, the oblique guide column comprises an upper buffer portion, a lower buffer portion and a moving position oblique portion, the upper buffer portion and the lower buffer portion are both perpendicular to the moving position oblique portion, one end of the T-shaped push block is fixedly connected to the sliding seat, an oblique guide rail is provided on the T-shaped push block, the upper end surface of the oblique guide rail is inclined and is slidably connected to the small slider, the small slider is T-shaped, the lower end of the small slider is embedded in the oblique guide rail and is slidably connected to the small slider, the width of both sides of the small slider is greater than the width of the T-shaped push block, and guide pins are also provided on both sides of the small slider.

2. The anti-collision mechanism for metal mold production according to claim 1, characterized in that: A dovetail groove 1 and a sliding groove are respectively provided on both sides of the limit guide block, the limit guide block is slidably connected to the positioning block through the dovetail groove 1, the upper end of the limit guide block is fixedly connected to the sliding guide block, and the guide pin is slidably connected to the sliding groove.

3. The anti-collision mechanism for metal mold production according to claim 2, characterized in that: The lower end of the sliding guide block is fixedly connected to the sliding seat, and a dovetail groove 2 with the same structure as the dovetail groove 1 is provided on the side of the sliding guide block away from the sliding seat, and is slidably connected to the positioning block through the dovetail groove 2, and a top groove is provided at the lower end of the sliding guide block.

4. The anti-collision mechanism for metal mold production according to claim 3, characterized in that: The telescopic top block includes a positioning column, a spring pin is provided at the lower end of the positioning column, a wedge block is provided on the side of the positioning column close to the sliding seat, the positioning column and the wedge block are an integrally formed structure, the upper end of the positioning column is arranged corresponding to the top groove, and the spring pin is embedded in the bottom plate.

5. The anti-collision mechanism for metal mold production according to claim 4, characterized in that: Sliding seat inclined grooves are provided on both sides of the sliding seat, and the wedge-shaped blocks are embedded in the sliding seat inclined grooves and slidably connected therewith.

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