Ejector pin assembly and ejector pin device

Abstract

The utility model provides an ejector pin assembly and an ejector pin device, the ejector pin assembly comprises a first ejector pin piece and at least one second ejector pin piece movably connected to the first ejector pin piece, the first ejector pin piece comprises at least one first ejector pin extending along a first direction, and the second ejector pin piece comprises at least one second ejector pin extending along a second direction. The first ejector pin piece comprises at least one first ejector pin extending in the first direction, the second ejector pin piece comprises at least one second ejector pin extending in the first direction, the first ejector pins and the second ejector pins are arranged in the second direction perpendicular to the first direction, and the ejector pin assembly has a first state that the first ejector pins and the second ejector pins are flush in the first direction and a second state that the first ejector pins and the second ejector pins are arranged in a staggered mode. According to the utility model, the states of the ejector pins on the first ejector pin piece and the second ejector pin piece are respectively switched to adapt to chips with different sizes, so that the requirements of different chip products on the number and positions of the ejector pins are met, and the ejector pin switching efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of chip packaging technical field, in particular to a needle assembly and needle device. BACKGROUND

[0002] At present, chip pick-and-place is mainly completed by suction nozzle, blue film disc and needle mechanism. Chips are distributed on movable blue film disc, and after current chip is picked up, blue film disc moves to make next chip above needle, for next pick-up. Needle mechanism is below blue film disc, and can eject chip from cutting completed wafer, and be picked up by suction nozzle above blue film disc.

[0003] In chip bonding machine, due to the length and size of chip of each product, the number of required needle and the installation hole position of needle are also different. If product is replaced, needle cylinder is often disassembled, needle is replaced, and manual operation is usually required. When needle cylinder is disassembled and needle is adjusted, installation deviation is easily caused, so that product is abnormal. And due to frequent product replacement, in order to adapt to different chips, the working efficiency of needle mechanism is greatly reduced.

[0004] Therefore, it is necessary to provide a needle device to solve the above technical problems. SUMMARY

[0005] In order to achieve the above purpose, the utility model provides a needle assembly, which comprises a first needle piece and at least one second needle piece movably connected to the first needle piece. The first needle piece comprises at least one first needle extending in a first direction. The second needle piece comprises at least one second needle extending in the first direction. The first needle and the second needle are arranged in a second direction perpendicular to the first direction. The needle assembly has a first state in which the first needle and the second needle are flush in the first direction, and a second state in which the first needle and the second needle are misaligned.

[0006] As a further improvement of the utility model, the first needle piece further comprises a first needle rod, and the first needle is located at the end of the first needle rod. The second needle piece is movably connected to the first needle rod.

[0007] As a further improvement of the utility model, the second needle piece further comprises a moving seat movably connected to the first needle rod, and a second needle rod connected to the moving seat. The second needle is located at the end of the second needle rod.

[0008] As a further improvement of the utility model, the mobile seat includes a sliding sleeve sleeved on the first needle rod, a first fixing member threadedly connected to the sliding sleeve and used for abutting against the first needle rod, and a connecting rod connecting the sliding sleeve and the second needle rod.

[0009] As a further improvement of the utility model, two connecting rods are connected to the sliding sleeve, and the two connecting rods are both connected to the second needle rod.

[0010] As a further improvement of the utility model, two second needle members are arranged, and the connecting rods on the two second needle members are different in length and have an included angle.

[0011] As a further improvement of the utility model, the first needle member further includes a first needle seat at the end of the first needle rod, and a plurality of first needles are arranged on the first needle seat at intervals.

[0012] The second needle member further includes a second needle seat at the end of the second needle rod, and a plurality of second needles are arranged on the second needle seat at intervals.

[0013] The utility model further provides a needle device, including the above-mentioned needle assembly and the needle cylinder sleeved on the outside of the needle assembly, and the needle cylinder includes a main part, a containing cavity in the main part, and a plurality of needle holes are formed on the main part and used for the first needle and the second needle to extend out of the containing cavity.

[0014] As a further improvement of the utility model, the needle cylinder further includes a first sleeve connected to the main part, and the first needle member extends into the containing cavity from the first sleeve;

[0015] A second fixing member is threadedly connected to the first sleeve and used for abutting against the first needle member.

[0016] As a further improvement of the utility model, the first sleeve is located at the center of the main part, and the needle cylinder further includes a second sleeve located on the outside of the first sleeve, a reinforcing rod connecting the first sleeve and the second sleeve, and the second needle member extends into the containing cavity from the second sleeve.

[0017] The utility model further provides another needle device, which includes a needle assembly, a first needle member and at least one second needle member, the first needle member includes at least one first needle extending in a first direction, the second needle member includes at least one second needle extending in the first direction, and the first needle and the second needle are arranged at intervals in a second direction perpendicular to the first direction.

[0018] A needle cylinder is arranged outside the thimble assembly, the first thimble and the second thimble are movably connected to the needle cylinder respectively, and a plurality of thimble holes are arranged on the needle cylinder for the first thimble and the second thimble to extend out of the needle cylinder.

[0019] As a further improvement of the utility model, the needle cylinder comprises a main body, a containing cavity in the main body, a first sleeve and a second sleeve connected to the main body, and the thimble holes are arranged on the main body.

[0020] The first thimble extends into the containing cavity from the first sleeve, and a second fixing member is threadedly connected to the first sleeve to abut against the first thimble; the second thimble extends into the containing cavity from the second sleeve, and a third fixing member is threadedly connected to the second sleeve to abut against the second thimble.

[0021] The utility model discloses the beneficial effects: the utility model discloses the state of the first thimble and the second thimble is switched respectively to adapt the thimble of different size chip, thereby satisfy the demand of the thimble number and position of different chip product, improve the thimble switching efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings described herein are used to provide further understanding of the utility model and form a part of the utility model, and the illustrative embodiment of the utility model and the explanation thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:

[0023] Figure 1 It is the structural schematic drawing of the thimble assembly of the utility model in the first state;

[0024] Figure 2 It is the structural schematic drawing of the thimble assembly of the utility model in the second state;

[0025] Figure 3 It is the structural schematic drawing of the second thimble of the utility model;

[0026] Figure 4 It is the structural schematic drawing of the thimble device of the utility model one implementation;

[0027] Figure 5 It is Figure 4 The structural schematic drawing of the thimble device of another view;

[0028] Figure 6 It is Figure 4 The sectional view schematic drawing of the thimble device;

[0029] Figure 7 It is the structural schematic drawing of the needle cylinder of the utility model;

[0030] Figure 8 This is a schematic diagram of the syringe from another perspective of the present invention;

[0031] Figure 9 This is a schematic diagram of another embodiment of the ejector pin device of this utility model;

[0032] Figure 10 This is a schematic diagram showing all the ejector pins of the ejector pin device of this utility model extending from the ejector pin hole;

[0033] Figure 11 This is a schematic diagram of the first ejector pin extending from the ejector pin hole in the ejector pin device of this utility model;

[0034] Figure 12 This is a schematic diagram of the second ejector pin extending from the ejector pin hole in the ejector pin device of this utility model;

[0035] Figure 13 This is a schematic diagram showing all the second ejector pins extending from the ejector pin holes in the ejector pin device of this utility model. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of the utility model, unless otherwise provided and limited, it needs to be explained that the terms "mounting", "connecting" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, it can also be the communication inside two elements, it can be direct connection or indirect connection through intermediate medium, for ordinary skilled person in the art, the specific meaning of the above terms can be understood according to specific circumstances.

[0040] As Figures 1 to 3 The utility model discloses a needle assembly 100, which comprises a first needle piece 101 and at least one second needle piece 102 movably connected to the first needle piece 101. The second needle piece 101 comprises at least one first needle 101a extending in a first direction; the second needle piece 102 comprises at least one second needle 102a extending in the first direction, and the first needle 101a and the second needle 102a are arranged in a second direction perpendicular to the first direction.

[0041] The needle assembly 100 has a first state in which the first needle 101a and the second needle 102a are flush in the first direction and a second state in which they are misaligned. By moving the first needle piece 101 and / or the second needle piece 102 in the first direction, the state of the needle assembly 100 can be switched to adapt to different sizes of chips.

[0042] Specifically, the first needle piece 101 further comprises a first needle rod 101b, and the first needle 101a is located at the end of the first needle rod 101b. By moving the first needle rod 101b in the first direction, the first needle 101a and the second needle 102a can be aligned or misaligned.

[0043] The first needle piece 101 further comprises a first needle seat 101c located at the end of the first needle rod 101b, and a plurality of first needles 101a are arranged on the first needle seat 101c in a spaced manner. The first needle seat 101c is in a strip shape, and a plurality of first needles 101a are arranged on the first needle seat 101c to increase the number of needles and application scenarios.

[0044] The second needle piece 102 further comprises a moving seat 102b movably connected to the first needle rod 101b, a second needle rod 102c connected to the moving seat 102b, and the second needle 102a is located at the end of the second needle rod 102c. By moving the second needle rod 102c in the first direction, the second needle 102a and the first needle 101a can be aligned or misaligned.

[0045] The moving seat 102b comprises a sliding sleeve 102b-1 sleeved on the first needle rod 101b, a first fixing member 102b-2 threadedly connected to the sliding sleeve 102b-1 and used to abut against the first needle rod 101b, and a connecting rod 102b-3 connecting the sliding sleeve 102b-1 and the second needle rod 102c.

[0046] The sliding sleeve 102b-1 is sleeved on the end of the first needle rod 101b away from the first needle 101a, and the whole second needle member 102 is driven to move by moving the sliding sleeve 102b-1 along the first needle rod 101b. The first fixing member 102b-2 is used to abut against the part of the first needle rod 101b inside the sliding sleeve 102b-1, and when it is needed to move the second needle member 102, the first fixing member 102b-2 is rotated to separate the first fixing member 102b-2 from the first needle rod 101b, at which time the second needle member 102 can be moved in the first direction to make the second needle 102a flush with the first needle 101a or misaligned. After adjustment, the first fixing member 102b-2 is rotated to abut against the first needle rod 101b again.

[0047] The connecting rod 102b-3 is perpendicular to the second needle rod 102c, and the second needle rod 102c is connected to the end of the connecting rod 102b-3 away from the sliding sleeve 102b-1.

[0048] The sliding sleeve 102b-1 is connected with two connecting rods 102b-3, and the two connecting rods 102b-3 are both connected with the second needle rod 102c, i.e., the second needle rod 102c is arranged in pairs. The first needle rod 101b is located between the two second needle rods 102c arranged in pairs, thereby increasing the number of needles and application scenarios. In this embodiment, the two connecting rods 102b-3 are located on the same straight line.

[0049] The second needle member 102 further comprises a second needle seat 102d located at the end of the second needle rod 102c, and a plurality of second needles 102c are arranged on the second needle seat 102d at intervals. A plurality of second needles 102c are arranged on the second needle seat 102d to increase the number of needles and application scenarios.

[0050] In a specific embodiment, the second needle member 102 is provided with two second needle members 1 and 2.

[0051] The second needle 102a on the second needle piece 1 is located between the first needle 101a and the second needle 102a on the second needle piece 2. It can be understood that the length of the connecting rod 102b-3 on the second needle piece 1 is less than the length of the connecting rod 102b-3 on the second needle piece 2, so that the second needles 102a on the two second needle pieces 102 are arranged in the second direction.

[0052] At the same time, in order to facilitate the movement of the two second needle pieces 102 respectively, the connecting rod 102b-3 on the second needle piece 1 and the connecting rod 102b-3 on the second needle piece 2 have an included angle therebetween.

[0053] In the embodiment, the connecting rod 102b-3 on the second needle piece 1 has an included angle with the straight line where the needle is located, and the connecting rod 102b-3 on the second needle piece 2 is parallel to the straight line where the needle is located. On this basis, the two second needle rods 102c on the second needle piece 1 and the two second needle rods 102c on the second needle piece 2 are not in the same plane. The second needle seat 102d on the second needle piece 1 is L-shaped, so as to arrange all the needles on the same straight line, and the second needle piece 2 can not be provided with the second needle seat 102d or be provided with the second needle seat 102d which is the same as the first needle seat 101c and is long strip-shaped.

[0054] Referring to Figures 4 to 8 , the application also provides a needle device comprising the above-mentioned needle assembly 100 and a needle cylinder 200, the needle cylinder 200 being sleeved outside the needle assembly 100. The needle cylinder 200 comprises a main body part 201 and a containing cavity 202 in the main body part 201, and the main body part 201 is provided with a plurality of needle holes 201a for the first needle 101a and the second needle 102a to extend out of the containing cavity 202.

[0055] It can be understood that when the needle assembly 100 is in the first state, the first needle 101a and the second needle 102a are located in the containing cavity 202 or extend out of the needle hole 201a. When the needle assembly 100 is in the second state, the first needle 101a is located in the containing cavity 202 and the second needle 102a extends out of the needle hole 201a; or, the first needle 101a extends out of the needle hole 201a and the second needle 102a is located in the containing cavity 202. Thus, chips of different sizes can be adapted.

[0056] Specifically, the main body 201 comprises an upper top surface and a lower bottom surface, the upper top surface is provided with a plurality of needle holes 201a, the needle holes 201a are provided correspondingly with the first needle 101a and the second needle 102a, and the number of the needle holes 201a is the sum of the number of the first needle 101a and the number of the second needle 102a. In the embodiment, the cross section of the main body 201 is an oval shape.

[0057] The main body 201 is formed with the accommodating cavity 202, one end of the needle provided on the first needle piece 101 and the second needle piece 102 is located in the accommodating cavity 202, and at least part of the needle is extended from the needle hole 201a in the accommodating cavity 202 by moving the first needle piece 101 and / or the second needle piece 102.

[0058] The needle cylinder 200 further comprises a first sleeve 203 connected with the main body 201. The first sleeve 203 is located on the lower bottom surface of the main body 201, the first sleeve 203 is located at the center of the main body 201 and is in communication with the accommodating cavity 202. The first needle rod 101b is extended from the first sleeve 203 to the accommodating cavity 202, and the first needle 101a is extended from the needle hole 201a or withdrawn into the accommodating cavity 202 by moving the first needle rod 101b along the first sleeve 203.

[0059] The first sleeve 203 is threadedly connected with a second fixing piece 203a for fixing the first needle rod 101b, the second fixing piece 203a abuts against the part of the first needle rod 101b located in the first sleeve 203. When it is needed to move the first needle rod 101b, the second fixing piece 203a is separated from the first needle rod 101b by rotating the second fixing piece 203a, and at this time the first needle rod 101b can be moved in the first direction to drive the first needle 101a to move.

[0060] The end of the first needle rod 101b away from the first needle 101a exceeds the first sleeve 203, so as to facilitate the movement of the first needle rod 101b. Since the first needle seat 101c cannot be extended from the needle hole 201a, the first needle seat 101c can play a limiting role. The first needle 101a is extended from the needle hole 201a by moving the first needle rod 101b, and when the first needle seat 101c abuts against the inner wall of the accommodating cavity 202, the first needle rod 101b cannot continue to move, and at this time the first needle 101a is completely extended from the needle hole 201a.

[0061] Of course, in other embodiments, a positioning hole can be provided on the first ejector rod 101b, so that when the first ejector 101a is completely retracted into the receiving cavity 202, the second fixing member 203a is inserted into the positioning hole. Alternatively, a limiting block can be provided on the first ejector rod 101b, so that when the first ejector 101a is completely retracted into the receiving cavity 202, the limiting block abuts against the first sleeve 203, preventing the first ejector rod 101b from continuing to drive the first ejector 101a into the receiving cavity 202.

[0062] It should be noted that, under the action of the first fixing member 102b-2, moving the first ejector rod 101b will cause the second ejector member 102 to move synchronously. If it is necessary to adjust the first ejector member 101 or the second ejector member 102 separately, the first fixing member 102b-2 can be rotated to separate it from the first ejector rod 101b.

[0063] The syringe 200 further includes a second sleeve 204 located outside the first sleeve 203. The second ejector rod 102c extends from the second sleeve 204 into the receiving cavity 202. The second sleeve 204 guides the movement of the second ejector rod 102c. The second ejector rod 102c moves along the second sleeve 204 to drive the second ejector 102a to extend or retract from the ejector hole 201a into the receiving cavity 202, thereby ensuring the smoothness of the movement of the second ejector 102. The number of second sleeves 204 is the same as the number of second ejector rods 102c.

[0064] The sliding sleeve 102b-1 is fitted onto the portion of the first ejector rod 101b that extends beyond the first sleeve 203. The second ejector seat 102d also serves as a limiting element to assist in positioning the second ejector 102a to fully extend from the ejector hole 201a. Thus, the first ejector seat 101c and the second ejector seat 102d ensure that when the first ejector 101a and the second ejector 102a on different second ejector components 102 extend from the ejector hole 201a, the length of all ejector pins extending out of the ejector hole 201a is the same.

[0065] Similarly, a positioning hole can be provided on the first ejector rod 101b. When the second ejector 102a is fully retracted into the receiving cavity 202, the first fixing member 102b-2 is inserted into the positioning hole. Alternatively, a limiting block can be provided on the second ejector rod 102c. When the second ejector 102a is fully retracted into the receiving cavity 202, the limiting block abuts against the second sleeve 204, preventing the second ejector rod 102c from continuing to move the second ejector 102a into the receiving cavity 202.

[0066] The syringe 200 further includes a reinforcing rod 205 connecting the first sleeve 203 and the second sleeve 204, the reinforcing rod 205 being used to enhance the overall structural strength of the syringe 200. The reinforcing rod 205 is parallel to the corresponding connecting rod 102b-3.

[0067] Reference Figure 9 The present invention also provides another ejector pin device, which is consistent with... Figure 4 The only difference between the shown ejector pin devices is:

[0068] The first ejector pin 101 and the second ejector pin 102 are respectively connected to the syringe 200. The second ejector pin 102 is not connected to the first ejector pin 101, so that the first ejector pin 101 and the second ejector pin 102 are independent of each other.

[0069] The first ejector rod 101b extends from the first sleeve 203 into the receiving cavity 202, and a second fixing member 203a is threadedly connected to the first sleeve 203 to abut against the first ejector rod 101b. The second ejector rod 102c extends from the second sleeve 204 into the receiving cavity 202, and a third fixing member 204a is threadedly connected to the second sleeve 204 to abut against the second ejector rod 102c.

[0070] When the first ejector pin 101 needs to be moved, the second fixing member 203a is rotated to separate it from the first ejector pin rod 101b, and the first ejector pin rod 101b is moved along the first direction, thereby causing the first ejector pin 101a to extend or retract from the ejector pin hole 201a into the receiving cavity 202. When the second ejector pin 102 needs to be moved, the third fixing member 204a is rotated to separate it from the second ejector pin rod 102c, and the second ejector pin rod 102c is moved along the first direction, thereby causing the second ejector pin 102a to extend or retract from the ejector pin hole 201a into the receiving cavity 202.

[0071] The following is Figure 4 The adjustment of the ejector pin device shown is explained in detail below:

[0072] In the initial state, both the first ejector pin 101a and the second ejector pin 102a are located within the accommodating cavity 202.

[0073] Reference Figure 10 This is a schematic diagram showing all the ejector pins on the ejector pin device extending from the ejector pin hole 201a.

[0074] First, rotate the second fixing member 203a to separate it from the first needle bar 101b; then move the first needle bar 101b along the first sleeve 203, driving the first needle 101a and the second needle 102a on the second needle member 1 and the second needle member 2 to extend out of the needle hole 201a synchronously; finally, rotate the second fixing member 203a to abut against the first needle bar 101b.

[0075] Referring to Figure 11 , a schematic view of the first needle 101a extending out of the needle hole 201a.

[0076] On the basis of Figure 10 , then rotate the first fixing member 102b-2 on the second needle member 1 and the second needle member 2 to separate it from the first needle bar 101b; then move the second needle bar 102c of the second needle member 1 and the second needle member 2 to drive the second needle 102a to retreat into the accommodating cavity 202; finally, rotate the first fixing member 102b-2 to abut against the first needle bar 101b.

[0077] Referring to Figure 12 , a schematic view of the second needle 102a on the second needle member 1 extending out of the needle hole 201a.

[0078] First, rotate the first fixing member 102b-2 on the second needle member 1 to separate it from the first needle bar 101b; then move the second needle bar 102c of the second needle member 1 to drive the second needle 102a to extend out of the needle hole 201a; finally, rotate the first fixing member 102b-2 to abut against the first needle bar 101b.

[0079] Referring to Figure 13 , a schematic view of all the second needles 102a extending out of the needle hole 201a.

[0080] On the basis of Figure 12 , then rotate the first fixing member 102b-2 on the second needle member 2 to separate it from the first needle bar 101b; then move the second needle bar 102c of the second needle member 2 to drive the second needle 102a to extend out of the needle hole 201a; finally, rotate the first fixing member 102b-2 to abut against the first needle bar 101b.

[0081] For Figure 9The adjusting mode of the shown needle device is basically same, the first needle piece 101 needs to be moved, that is, the fixation of the second fixed piece 203a is cancelled, so that the first needle 101a is extended from the needle hole 201a or retracted into the accommodating cavity 202; the second needle piece 102 needs to be moved, that is, the fixation of the third fixed piece 204a is cancelled, so that the second needle 102a is extended from the needle hole 201a or retracted into the accommodating cavity 202.

[0082] In summary, the utility model discloses by switching the state of the needle on the first needle piece 101 and the second needle piece 102 to adapt to chips of different sizes, so that the number and position of the needle required by different chip products are met, and the efficiency of needle switching is improved.

[0083] It should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0084] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the utility model, and are not used to limit the protection scope of the utility model, and equivalent embodiments or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

Claims

1. A pin assembly (100), characterized in that, include: The first ejector pin (101) includes at least one first ejector pin (101a) extending along a first direction. At least one second ejector pin (102) is movably connected to the first ejector pin (101), the second ejector pin (102) includes at least one second ejector pin (102a) extending along a first direction, the first ejector pin (101a) and the second ejector pin (102a) are arranged along a second direction perpendicular to the first direction, the ejector pin assembly (100) has a first state in which the first ejector pin (101a) and the second ejector pin (102a) are flush along the first direction and a second state in which they are misaligned.

2. The ejector pin assembly (100) according to claim 1, characterized in that: The first ejector pin (101) further includes a first ejector pin rod (101b), the first ejector pin (101a) is located at the end of the first ejector pin rod (101b), and the second ejector pin (102) is movably connected to the first ejector pin rod (101b).

3. The ejector pin assembly (100) according to claim 2, characterized in that: The second ejector pin (102) further includes a movable seat (102b) movably connected to the first ejector pin rod (101b) and a second ejector pin rod (102c) connected to the movable seat (102b), wherein the second ejector pin (102a) is located at the end of the second ejector pin rod (102c).

4. The ejector pin assembly (100) according to claim 3, characterized in that: The movable seat (102b) includes a sliding sleeve (102b-1) sleeved on the first ejector rod (101b), a first fixing member (102b-2) threaded onto the sliding sleeve (102b-1) and used to abut against the first ejector rod (101b), and a connecting rod (102b-3) connecting the sliding sleeve (102b-1) and the second ejector rod (102c).

5. The ejector pin assembly (100) according to claim 4, characterized in that: The sliding sleeve (102b-1) is connected to two connecting rods (102b-3), and both connecting rods (102b-3) are connected to the second ejector rod (102c).

6. The ejector pin assembly (100) according to claim 4, characterized in that: There are two second ejector pins (102), and the connecting rods (102b-3) on the two second ejector pins (102) have different lengths and have an included angle.

7. The ejector pin assembly (100) according to claim 3, characterized in that: The first ejector pin (101) further includes a first ejector pin seat (101c) located at the end of the first ejector pin rod (101b), and a plurality of first ejector pins (101a) are spaced apart on the first ejector pin seat (101c). The second ejector pin (102) further includes a second ejector pin seat (102d) located at the end of the second ejector pin rod (102c), and a plurality of second ejector pins (102a) are spaced on the second ejector pin seat (102d).

8. A pin device, characterized in that, Includes the ejector assembly (100) as described in any one of claims 1 to 7, and a syringe (200) sleeved on the outside of the ejector assembly (100). The syringe (200) includes a main body (201) and a receiving cavity (202) located in the main body (201). The main body (201) is provided with a plurality of ejector holes (201a) for the first ejector (101a) and the second ejector (102a) to extend out from the receiving cavity (202).

9. The ejector pin device according to claim 8, characterized in that: The syringe (200) also includes a first sleeve (203) connected to the main body (201), and the first ejector pin (101) extends from the first sleeve (203) into the receiving cavity (202); The first sleeve (203) is threadedly connected to a second fixing member (203a) for abutting against the first ejector pin (101).

10. The ejector pin device according to claim 9, characterized in that: The first sleeve (203) is located at the center of the main body (201), and the syringe (200) also includes a second sleeve (204) located outside the first sleeve (203), a reinforcing rod (205) connecting the first sleeve (203) and the second sleeve (204), and the second ejector pin (102) extends from the second sleeve (204) into the receiving cavity (202).

11. A pin device, characterized in that, include: The ejector assembly (100) includes a first ejector member (101) and at least one second ejector member (102). The first ejector member (101) includes at least one first ejector pin (101a) extending along a first direction, and the second ejector member (102) includes at least one second ejector pin (102a) extending along the first direction. The first ejector pin (101a) and the second ejector pin (102a) are spaced apart along a second direction perpendicular to the first direction. A syringe (200) is sleeved on the outside of the ejector assembly (100). The first ejector (101) and the second ejector (102) are movably connected to the syringe (200). The syringe (200) is provided with a plurality of ejector holes (201a) for the first ejector (101a) and the second ejector (102a) to extend out of the syringe (200).

12. The ejector pin device according to claim 11, characterized in that: The syringe (200) includes a main body (201), a receiving cavity (202) located in the main body (201), a first sleeve (203) and a second sleeve (204) connected to the main body (201), and the ejector pin hole (201a) is provided in the main body (201). The first ejector pin (101) extends from the first sleeve (203) into the receiving cavity (202), and a second fixing member (203a) is threadedly connected to the first sleeve (203) for abutting against the first ejector pin (101); the second ejector pin (102) extends from the second sleeve (204) into the receiving cavity (202), and a third fixing member (204a) is threadedly connected to the second sleeve (204) for abutting against the second ejector pin (102).

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